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JP2018199763A - A lubricant composition for press-fit - Google Patents

A lubricant composition for press-fit Download PDF

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Publication number
JP2018199763A
JP2018199763A JP2017104377A JP2017104377A JP2018199763A JP 2018199763 A JP2018199763 A JP 2018199763A JP 2017104377 A JP2017104377 A JP 2017104377A JP 2017104377 A JP2017104377 A JP 2017104377A JP 2018199763 A JP2018199763 A JP 2018199763A
Authority
JP
Japan
Prior art keywords
compound
oil
lubricant composition
press
fit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2017104377A
Other languages
Japanese (ja)
Other versions
JP6804388B2 (en
Inventor
貴大 仁平
Takahiro NIHIRA
貴大 仁平
石川　博之
Hiroyuki Ishikawa
博之 石川
駒場　雅範
Masanori Komaba
雅範 駒場
昌三 池島
Shozo Ikejima
昌三 池島
裕介 浅田
Yusuke Asada
裕介 浅田
敬弘 野須
Takahiro Nosu
敬弘 野須
巧 塩見
Takumi Shiomi
巧 塩見
恭司 犬飼
Kyoji Inukai
恭司 犬飼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyodo Yushi Co Ltd
Denso Corp
Original Assignee
Kyodo Yushi Co Ltd
Denso Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyodo Yushi Co Ltd, Denso Corp filed Critical Kyodo Yushi Co Ltd
Priority to JP2017104377A priority Critical patent/JP6804388B2/en
Priority to US15/964,188 priority patent/US20180340128A1/en
Publication of JP2018199763A publication Critical patent/JP2018199763A/en
Application granted granted Critical
Publication of JP6804388B2 publication Critical patent/JP6804388B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
    • C10M101/04—Fatty oil fractions
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/04—Elements
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/04—Elements
    • C10M2201/043—Sulfur; Selenenium; Tellurium
    • C—CHEMISTRY; METALLURGY
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    • C10M2201/08—Inorganic acids or salts thereof
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
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    • C10M2201/081—Inorganic acids or salts thereof containing halogen
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    • C10M2201/10—Compounds containing silicon
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    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/02—Well-defined aliphatic compounds
    • C10M2203/024—Well-defined aliphatic compounds unsaturated
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    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
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    • C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
    • C10M2207/044—Cyclic ethers having four or more ring atoms, e.g. furans, dioxolanes
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    • C10M2207/10—Carboxylix acids; Neutral salts thereof
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    • C10M2227/081—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions having metal-to-carbon bonds with a metal carbon bond belonging to a ring, e.g. ferocene
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
    • C10M2229/02—Unspecified siloxanes; Silicones
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/14—Group 7
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/16—Groups 8, 9, or 10
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/067—Unsaturated Compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/02—Pour-point; Viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/26—Waterproofing or water resistance
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/14—Electric or magnetic purposes
    • C10N2040/17—Electric or magnetic purposes for electric contacts

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Abstract

【課題】プレスフィット端子挿入時の摩擦低減と、挿入後のプレスフィット端子のプリント基板への接続を両立させた潤滑剤組成物を提供すること。【解決手段】ヨウ素価が１００以上である不飽和化合物を含有する、プレスフィット用潤滑剤組成物。【選択図】なしThe present invention provides a lubricant composition that achieves both reduction in friction during insertion of a press-fit terminal and connection of the press-fit terminal after insertion to a printed circuit board. A press-fit lubricant composition containing an unsaturated compound having an iodine value of 100 or more. [Selection figure] None

Description

本発明は、プレスフィット接続と呼ばれる接続方式に用いられるプレスフィット用潤滑剤組成物に関する。   The present invention relates to a lubricant composition for press-fit used in a connection method called press-fit connection.

近年、電子基板と端子とを接続する方式として、プレスフィット接続の使用が進められている。
プレスフィット接続とは、プリント基板に設けられた導電性のスルーホールに、スルーホールの径よりも幅広な膨出部を有したプレスフィット端子を圧入し、はんだ付けを行わずに機械的にプレスフィット端子を固定し、プレスフィット端子とスルーホールとの間に電気的接触を得る方法である。
プレスフィット接続では、プリント基板とプレスフィット端子との接続に、はんだ付けを要さないので、鉛フリー化、はんだ付けに要する熱源をなくすことによる省エネ、工程の短縮などの利点が期待できる。
その一方で、プレスフィット接続は、プレスフィット端子をスルーホールに圧入する方式であるので、スルーホール表面とプレスフィット端子表面との摩擦力によって、プレスフィット端子表面のメッキが剥がれ落ち、メッキ屑が発生することがある。発生したメッキ屑が、冷却風や振動によって飛散した場合、それが周辺に配置された配線パターンや、リードに付着して短絡不良を発生させる問題が生じる。
このような問題に対して、挿入時に発生したメッキ屑を補足することで飛散を防止する対策がなされている。これまでに、例えば、プリント基板の両面をプラスチックのフィルムでラミネートすることで、発生したメッキ屑をスルーホール内に閉じ込める方法（特許文献１）、プレスフィット端子表面に塗布した粘着性剤や樹脂コーティングにメッキ屑を保持させる方法（特許文献２、特許文献３）が報告されている。ペースト状硬化性樹脂にメッキ屑を保持させるとともに、樹脂硬化後はプレスフィット端子の脱落や微動を抑制する手法もまた報告されている（特許文献４）。 In recent years, the use of press-fit connection has been promoted as a method for connecting an electronic substrate and a terminal.
With press-fit connection, press-fit terminals with bulges wider than the diameter of the through-holes are press-fitted into conductive through-holes provided on the printed circuit board and pressed mechanically without soldering. In this method, the fit terminal is fixed, and electrical contact is obtained between the press-fit terminal and the through hole.
In press-fit connection, since soldering is not required for connection between the printed circuit board and the press-fit terminal, advantages such as lead-free, energy saving by eliminating the heat source required for soldering, and shortening of the process can be expected.
On the other hand, the press-fit connection is a method in which the press-fit terminal is press-fitted into the through-hole, so that the plating on the surface of the press-fit terminal peels off due to the frictional force between the surface of the through-hole and the press-fit terminal surface. May occur. When the generated plating scraps are scattered by cooling air or vibration, there arises a problem in that it adheres to the wiring patterns and leads arranged in the periphery and causes a short circuit failure.
For such a problem, a measure is taken to prevent scattering by supplementing plating scrap generated at the time of insertion. So far, for example, by laminating both sides of a printed circuit board with a plastic film, the generated plating scraps are confined in the through hole (Patent Document 1), and the adhesive or resin coating applied to the surface of the press-fit terminal (Patent Literature 2, Patent Literature 3) has been reported. There has also been reported a method for holding plating scraps in a paste-like curable resin and suppressing the drop-off and fine movement of press-fit terminals after the resin is cured (Patent Document 4).

特開平６−１３７３５号公報JP-A-6-13735 特許３９６９３９６号Patent 3969396 特許５３３７５２０号Patent 5337520 特開２００９−１６０６４号公報JP 2009-16064 A

本発明が解決しようとする課題は、プレスフィット端子挿入時の摩擦低減と、挿入後のプレスフィット端子のプリント基板への接続、すなわち挿入後の保持力の維持を両立させた潤滑剤組成物を提供することである。これまでの特許では、発生した金属屑の捕捉に主眼が置かれてきた。その一方で、プレスフィット端子挿入時の摩擦の低下と、挿入後の保持力の維持もまた、それぞれ摩耗粉の発生の抑止と、プレスフィット端子の脱落防止の観点から重要な課題であると考えられる。挿入時の摩擦低下については、例えば特許文献２においても指摘されているが、挿入後の保持力維持については、必ずしも主眼が置かれているわけではない。特許文献４においては、ペースト状硬化性樹脂を用いることで、挿入後のプレスフィット端子の脱落防止に言及しているが、表面張力が大きく、たれ落ちづらいペースト状の樹脂を使用する場合では、スルーホール内に樹脂が十分に流入するとは限らず、挿入時の潤滑性が十分に得られないケースや、プレスフィット端子とスルーホールとの接続に十分な接触面積を確保できないケースも考えられる。   The problem to be solved by the present invention is to provide a lubricant composition that achieves both friction reduction during press-fit terminal insertion and connection of the press-fit terminal to the printed circuit board after insertion, that is, maintenance of holding force after insertion. Is to provide. In previous patents, the focus has been on the capture of generated metal debris. On the other hand, the reduction of friction when inserting press-fit terminals and the maintenance of holding force after insertion are also important issues from the viewpoints of suppressing the generation of wear powder and preventing the press-fit terminals from falling off. It is done. For example, Patent Document 2 points out the friction reduction at the time of insertion, but the main focus is not always on maintaining the holding force after insertion. In Patent Document 4, by using a paste-like curable resin, mention is made to prevent the press-fit terminal from falling off after insertion, but in the case of using a paste-like resin that has a large surface tension and does not easily fall off, There are cases where the resin does not necessarily flow sufficiently into the through hole, and a case where sufficient lubricity at the time of insertion cannot be obtained, or a case where a contact area sufficient for connection between the press-fit terminal and the through hole cannot be secured.

我々は、上記の課題に対し、潤滑剤組成物の基油に乾性油を用いることにより、これを解決できることを見出した。更に検討を重ね、特定の値のヨウ素価を有する不飽和化合物を使用することにより前記課題を解決できるとの知見を得た。すなわち、本発明により、以下の潤滑剤組成物を提供する。
１．ヨウ素価が１００以上である不飽和化合物を含有する、プレスフィット用潤滑剤組成物。
２．前記不飽和化合物が乾性油または半乾性油である、前記１項記載の潤滑剤組成物。
３．前記不飽和化合物が、スクアレン、ドコサヘキサエン酸（ＤＨＡ）、キリ油、亜麻仁油、荏油、マシ油、サフラワー油、ひまわり油、ゴマ油、ナタネサラダ油、大豆油、綿実油、米油、及びこれらの混合物からなる群から選ばれる前記１項記載の潤滑剤組成物。
４．更に、過酸化物、アジ化物、金属石けん、無機酸またはルイス酸、有機金属化合物、硫黄または硫黄化合物、アミン、チオール化合物、有機リン化合物、イミダゾール化合物、オレフィン、環状エーテル、メタクリル酸化合物、アクリル酸化合物、イソシアネート化合物、シリコーン化合物、フェノール化合物、ウレタン化合物、アゾニトリル、アゾエステル、アゾアミド、アゾアミジン、アゾイミダゾリウム、ベンゾイン誘導体、ベンジルケタール、α-ヒドロキシアセトフェノン、α-アミノアセトフェノン、アシルフォスフォンオキサイド、チタノセン類、ヨードニウム塩系、スルフォニウム塩系およびこれらの混合物からなる群から選ばれる化合物を含有する、前記１〜３のいずれか１項に記載のプレスフィット用潤滑剤組成物。
５．更に、増ちょう剤を含む、前記１〜４のいずれか１項に記載のプレスフィット用潤滑剤組成物。
６．プレスフィット端子又はプリント基板のスルーホールのいずれか一方又は両方に、前記１〜５のいずれか１項記載の潤滑剤組成物が適用されている、電気的接点。
７．プレスフィット端子又はプリント基板のスルーホールのいずれか一方又は両方に、前記１〜５のいずれか１項記載の潤滑剤組成物を適用することを含む、プレスフィット接続方法。 We have found that this problem can be solved by using a dry oil as the base oil of the lubricant composition. Further investigations have been made, and it has been found that the above problem can be solved by using an unsaturated compound having a specific value of iodine value. That is, according to the present invention, the following lubricant composition is provided.
1. A lubricant composition for press-fit containing an unsaturated compound having an iodine value of 100 or more.
2. The lubricant composition according to claim 1, wherein the unsaturated compound is a drying oil or a semi-drying oil.
3. The unsaturated compound is squalene, docosahexaenoic acid (DHA), tung oil, linseed oil, coconut oil, mustard oil, safflower oil, sunflower oil, sesame oil, rapeseed oil, soybean oil, cottonseed oil, rice oil, and mixtures thereof 2. The lubricant composition according to the above item 1, selected from the group consisting of:
4). Further, peroxide, azide, metal soap, inorganic acid or Lewis acid, organometallic compound, sulfur or sulfur compound, amine, thiol compound, organophosphorus compound, imidazole compound, olefin, cyclic ether, methacrylic acid compound, acrylic acid Compound, isocyanate compound, silicone compound, phenolic compound, urethane compound, azonitrile, azoester, azoamide, azoamidine, azoimidazolium, benzoin derivative, benzyl ketal, α-hydroxyacetophenone, α-aminoacetophenone, acyl phosphooxide, titanocene, 4. The press-fit lubricant composition according to any one of 1 to 3 above, which contains a compound selected from the group consisting of iodonium salt-based, sulfonium salt-based, and mixtures thereof.
5). Furthermore, the lubricant composition for press fits of any one of said 1-4 containing a thickener.
6). The electrical contact in which the lubricant composition of any one of said 1-5 is applied to any one or both of a press-fit terminal or the through hole of a printed circuit board.
7). The press fit connection method including applying the lubricant composition of any one of said 1-5 to any one or both of a press fit terminal or the through hole of a printed circuit board.

本発明によれば、プレスフィット端子挿入時の摩擦低減と、挿入後のプレスフィット端子のプリント基板への接続を両立することができる。本発明の組成物によれば、油圧シリンダやクランク機構等の機械的外力を用いることなく、又は使用しても無潤滑時の６５％以下程度の低荷重でプレスフィット端子をプリント基板に挿入することができる。   According to the present invention, it is possible to achieve both friction reduction when inserting a press-fit terminal and connection of the press-fit terminal after insertion to a printed circuit board. According to the composition of the present invention, a press-fit terminal is inserted into a printed board without using mechanical external force such as a hydraulic cylinder or a crank mechanism or with a low load of about 65% or less when no lubrication is used. be able to.

本発明の潤滑剤組成物を構成する基油は、ヨウ素価（Ｉ2ｇ／１００ｇ）が１００以上、好ましくは１３０以上である不飽和化合物を含有する。１０００以下であるのが好ましく、５００以下であるのがより好ましく、３８０以下であるのがさらに好ましい。なお、ヨウ素価は、JIS K0070.6に従って測定される値をいう。また、本明細書において「液体成分」とは、前記不飽和化合物に加え、添加剤由来の常温（２５℃）で液体の成分を意味する。
前記不飽和化合物としては、乾性油及び半乾性油があげられる。乾性油とは、空気中に放置すると、酸素と反応して固化・乾燥する脂肪油をいう。半乾性油とは、乾性油と不乾性油との中間に属する油であり、ヨウ素価は通常１００〜１３０である。乾性油及び半乾性油の具体例としては、スクアレン、ドコサヘキサエン酸（ＤＨＡ）、キリ油、亜麻仁油、荏油、マシ油、サフラワー油、ひまわり油、ゴマ油、ナタネサラダ油、大豆油、綿実油、米油等があげられる。 The base oil constituting the lubricant composition of the present invention contains an unsaturated compound having an iodine value (I 2 g / 100 g) of 100 or more, preferably 130 or more. It is preferably 1000 or less, more preferably 500 or less, and even more preferably 380 or less. The iodine value is a value measured according to JIS K0070.6. In the present specification, the “liquid component” means a component that is liquid at room temperature (25 ° C.) derived from the additive in addition to the unsaturated compound.
Examples of the unsaturated compound include dry oil and semi-dry oil. Dry oil refers to a fatty oil that solidifies and dries by reacting with oxygen when left in the air. A semi-drying oil is an oil belonging to an intermediate between a drying oil and a non-drying oil, and an iodine value is usually 100 to 130. Specific examples of the drying oil and semi-drying oil include squalene, docosahexaenoic acid (DHA), tung oil, linseed oil, coconut oil, mash oil, safflower oil, sunflower oil, sesame oil, rapeseed oil, soybean oil, cottonseed oil, rice Examples include oil.

本発明の基油の25℃での粘度は2 mPa・s以上、好ましくは5 mPa・s以上、さらに好ましくは10 mPa・s以上であるのが好ましく、１００，０００mPa・s以下、好ましくは１０，０００mPa・s以下、より好ましくは２５０mPa・s以下であるのが好ましい。このような基油を含有する本発明の潤滑剤組成物は、プリント基板に空いたスルーホールとプレスフィット端子との間に導入されやすく、接続しうる面積が大きくなることで、良好な接続性に寄与することが期待できるので好ましい。とりわけ、基油の25℃での粘度が2 mPa・s以上、好ましくは5 mPa・s以上、さらに好ましくは10 mPa・s以上であり、かつ、せん断速度10〜1000 s-1の範囲で、25℃での見かけ粘度の変動が5 %以下であるのが好ましい。このとき、基油の25℃での粘度は、好ましくは１００，０００mPa・s以下、より好ましくは１０，０００mPa・s以下、さらに好ましくは２５０mPa・s以下である。このような基油は、ニュートン流体として流動することで、プレスフィット端子挿入時にスルーホールのふちにかき取られた潤滑剤組成物が、時間の経過とともにスルーホール内部に導入されやすく、接続しうる面積が大きくなることで、良好な接続性に寄与することが期待できるので好ましい。 The viscosity of the base oil of the present invention at 25 ° C. is 2 mPa · s or more, preferably 5 mPa · s or more, more preferably 10 mPa · s or more, preferably 100,000 mPa · s or less, preferably 10 1,000 mPa · s or less, more preferably 250 mPa · s or less. The lubricant composition of the present invention containing such a base oil is easy to be introduced between a through hole and a press-fit terminal that are vacant in a printed circuit board, and the area that can be connected is increased, thereby providing good connectivity. It is preferable because it can be expected to contribute. In particular, the base oil has a viscosity at 25 ° C. of 2 mPa · s or more, preferably 5 mPa · s or more, more preferably 10 mPa · s or more, and a shear rate of 10 to 1000 s −1 . The change in apparent viscosity at 25 ° C. is preferably 5% or less. At this time, the viscosity of the base oil at 25 ° C. is preferably 100,000 mPa · s or less, more preferably 10,000 mPa · s or less, and further preferably 250 mPa · s or less. By flowing such a base oil as a Newtonian fluid, the lubricant composition scraped to the edge of the through hole when the press-fit terminal is inserted can be easily introduced into the through hole over time and can be connected. A large area is preferable because it can be expected to contribute to good connectivity.

本発明の潤滑剤組成物中の前記不飽和化合物の含有量は、潤滑剤組成物の全質量を基準として７質量％以上であるのが好ましく、１０質量％以上であるのがより好ましく、１５質量％以上であるのがさらに好ましい。不飽和化合物の含有量がこのような範囲にあると、潤滑剤組成物が硬化することで、プレスフィット端子の抜けを防止することができるので好ましい。   The content of the unsaturated compound in the lubricant composition of the present invention is preferably 7% by mass or more, more preferably 10% by mass or more, based on the total mass of the lubricant composition. More preferably, it is at least mass%. When the content of the unsaturated compound is in such a range, it is preferable that the lubricant composition is cured, thereby preventing the press-fit terminal from coming off.

本発明の潤滑剤組成物は、前記基油のみからなることもできるが、潤滑剤組成物に通常使用できる種々の添加剤を必要に応じて含むことができる。このような添加剤としては防錆剤、酸化防止剤、油性剤、金属腐食防止剤、耐摩耗剤、極圧剤、固体潤滑剤などが挙げられる。これら添加剤の潤滑剤組成物中の含有量は、通常、0.1〜20質量％である。   The lubricant composition of the present invention can be composed of only the above base oil, but can contain various additives that can be usually used in the lubricant composition as required. Examples of such additives include rust preventives, antioxidants, oily agents, metal corrosion inhibitors, antiwear agents, extreme pressure agents, solid lubricants, and the like. The content of these additives in the lubricant composition is usually 0.1 to 20% by mass.

本発明の潤滑剤組成物はまた、室温、大気中での硬化を促進させるために、種々の硬化促進剤を含むことができる。
硬化促進剤としては、過酸化物、アジ化物、金属石けん、無機酸またはルイス酸、有機金属化合物、硫黄または硫黄化合物、アミン、チオール化合物、有機リン化合物、イミダゾール化合物、オレフィン、環状エーテル、メタクリル酸化合物、アクリル酸化合物、イソシアネート化合物、シリコーン化合物、フェノール化合物、ウレタン化合物の少なくとも1種類が挙げられる。
過酸化物としては、ハイドロパーオキサイド、ケトンパーオキサイド、パーオキシエステル、ジアルキルパーオキサイド、パーオキシジカーボネートが好ましい。金属石けんとしては、コバルト、マンガン、鉛、亜鉛、ニッケル、バリウム、カルシウム、アルミニウム、カリウム、銅、鉄、リチウム、ジルコニウムのいずれかの金属に、飽和又は不飽和脂肪酸またはナフテン酸が配位した金属石けんが好ましく、いずれかの金属に、不飽和脂肪酸が配位した金属石けんがより好ましく、オクテン酸コバルトが特に好ましい。無機酸としては希硫酸、希塩酸が好ましい。ルイス酸としては、ヨウ化水素、ヨウ素、３ヨウ化亜鉛、３塩化ホウ素が好ましい。有機金属化合物としては、シクロペンタジエニル錯体が好ましい。硫黄化合物としては、チオウレア系、チアゾール系、スルフェンアミド系、チウラム系、ジチオカルバミン酸塩系、キサントゲン酸塩系のいずれかに属する硫黄化合物が好ましい。アミンとしては、ジアミンが好ましく、特に、トリメチルヘキサメチレンジアミンが好ましい。チオール化合物としては、２〜４つのチオール基を有し、チオール基につながる部分の炭素の数が１２〜２２、酸素の数が４〜１０、窒素の数が０〜３の範囲にあるチオール化合物が好ましい。環状エーテルとしては、分子の末端にグリシジル基を２〜４つ有し、グリシジル基につながる部分の炭素の数が４〜２０、酸素の数が２〜６、窒素の数が０〜４である環状エーテルまたはその重合体が好ましい。イソシアネート化合物としては、イソシアネート基を２つ以上有し、イソシアネート基につながる部分の炭素の数が６〜１４であるイソシアネート化合物またはその重合体が好ましい。このうち、金属石けん、アミン、環状エーテルが好ましい。
このような硬化促進用化合物は、本発明の潤滑剤組成物の全質量を基準として、0.01〜50質量%、好ましくは0.01〜40質量％、さらに好ましくは0.01〜３０質量％の範囲で含ませることができる。 The lubricant composition of the present invention can also contain various curing accelerators in order to accelerate curing in the air at room temperature.
Curing accelerators include peroxide, azide, metal soap, inorganic acid or Lewis acid, organometallic compound, sulfur or sulfur compound, amine, thiol compound, organophosphorus compound, imidazole compound, olefin, cyclic ether, methacrylic acid Examples thereof include at least one of a compound, an acrylic acid compound, an isocyanate compound, a silicone compound, a phenol compound, and a urethane compound.
As the peroxide, hydroperoxide, ketone peroxide, peroxyester, dialkyl peroxide, and peroxydicarbonate are preferable. Metal soap is a metal in which saturated or unsaturated fatty acid or naphthenic acid is coordinated to any of cobalt, manganese, lead, zinc, nickel, barium, calcium, aluminum, potassium, copper, iron, lithium, and zirconium. A soap is preferable, a metal soap in which an unsaturated fatty acid is coordinated to any metal is more preferable, and cobalt octenoate is particularly preferable. As the inorganic acid, dilute sulfuric acid and dilute hydrochloric acid are preferable. As the Lewis acid, hydrogen iodide, iodine, 3 zinc iodide, and boron chloride are preferable. As the organometallic compound, a cyclopentadienyl complex is preferable. As the sulfur compound, a sulfur compound belonging to any of thiourea, thiazole, sulfenamide, thiuram, dithiocarbamate, and xanthate is preferable. As the amine, diamine is preferable, and trimethylhexamethylenediamine is particularly preferable. As the thiol compound, the thiol compound has 2 to 4 thiol groups, the number of carbons in the portion connected to the thiol group is 12 to 22, the number of oxygen is 4 to 10 and the number of nitrogen is 0 to 3 Is preferred. The cyclic ether has 2 to 4 glycidyl groups at the end of the molecule, the number of carbons connected to the glycidyl group is 4 to 20, the number of oxygen is 2 to 6, and the number of nitrogen is 0 to 4. Cyclic ethers or polymers thereof are preferred. As the isocyanate compound, an isocyanate compound having two or more isocyanate groups and having 6 to 14 carbon atoms connected to the isocyanate group or a polymer thereof is preferable. Of these, metal soaps, amines and cyclic ethers are preferred.
Such a curing accelerating compound is included in the range of 0.01 to 50% by mass, preferably 0.01 to 40% by mass, more preferably 0.01 to 30% by mass, based on the total mass of the lubricant composition of the present invention. be able to.

本発明の潤滑剤組成物はまた、増ちょう剤を含ませてグリースとしてもよい。このような増ちょう剤としては、リチウム石けんや複合リチウム石けんに代表される石けん系増ちょう剤、ジウレアに代表されるウレア系増ちょう剤、有機化クレイやシリカに代表される無機系増ちょう剤、ＰＴＦＥに代表される有機系増ちょう剤などが挙げられるが、好ましいのは無機系増ちょう剤や有機系増ちょう剤である。無機系増ちょう剤がより好ましく、シリカが最も好ましい。
本発明の潤滑剤組成物が増ちょう剤を含む場合、増ちょう剤の割合は、潤滑剤組成物の全質量を基準として、好ましくは０．５〜８５質量％、より好ましくは０．５〜７０質量％、さらに好ましくは０．５〜６０質量％、さらにより好ましくは１〜６５質量％、とりわけ好ましくは５〜５５質量％である。０．５質量％以上で増ちょう効果を発揮する。６５質量％以下の場合、適度な硬さのグリースとなり潤滑剤が潤滑部に行き渡るため、充分な潤滑効果が容易に得られる。
本発明の潤滑剤組成物が増ちょう剤を含む場合、潤滑剤組成物のちょう度は、３００〜４７５が好ましく、３１０〜４７５がより好ましく、４００〜４３０がより好ましい。なお、ちょう度は、ＪＩＳ Ｋ ２２２０に定義される、試料を規定の混和器で６０往復混和した直後に測定される値である。なお、本発明の潤滑剤組成物が硬化促進剤を含むグリースの場合、硬化促進剤は、基油と増ちょう剤と必要により添加される添加剤とからグリースを調製する際に一緒に添加してもよいし、いったんグリースを調製した後に添加してもよいが、グリースのちょう度は、硬化促進剤を添加してから３０分以内に測定した値をいう。 The lubricant composition of the present invention may also contain a thickener to form a grease. Examples of such thickeners include soap-type thickeners represented by lithium soap and composite lithium soap, urea-type thickeners represented by diurea, and inorganic thickeners represented by organic clay and silica. And organic thickeners such as PTFE are preferable, but inorganic thickeners and organic thickeners are preferable. Inorganic thickeners are more preferred, and silica is most preferred.
When the lubricant composition of the present invention includes a thickener, the proportion of the thickener is preferably 0.5 to 85% by mass, more preferably 0.5 to 0.5%, based on the total mass of the lubricant composition. It is 70 mass%, More preferably, it is 0.5-60 mass%, More preferably, it is 1-65 mass%, Most preferably, it is 5-55 mass%. A thickening effect is exhibited at 0.5% by mass or more. When the amount is 65% by mass or less, the grease becomes moderately hard and the lubricant spreads over the lubrication part, so that a sufficient lubrication effect can be easily obtained.
When the lubricant composition of the present invention contains a thickener, the consistency of the lubricant composition is preferably 300 to 475, more preferably 310 to 475, and more preferably 400 to 430. The consistency is a value defined immediately after 60 reciprocal mixings of a sample with a prescribed mixer, as defined in JIS K 2220. In the case where the lubricant composition of the present invention is a grease containing a curing accelerator, the curing accelerator is added together when preparing the grease from the base oil, the thickener, and an additive that is added as necessary. Alternatively, the grease may be added after the grease has been prepared, but the consistency of the grease refers to a value measured within 30 minutes after the addition of the curing accelerator.

本発明の潤滑剤組成物を、第1の部品と第2の部品との組み付けに用いることにより、組み付け時には液体として存在することで、第1の部品と第2の部品との間の摩擦を低減し、組み付け後には、第1の部品と第2の部品とを接続することができる。
接続は、本発明の潤滑剤組成物の重合または架橋による硬化ないし増粘により達成することができる。
本発明の潤滑剤組成物の硬化ないし増粘は、室温において大気中で静置することによって行うことができる。
硬化ないし増粘は、ラジカル重合、カチオン重合、配位重合、加硫のいずれかによって進行し得る。ラジカル重合により硬化ないし増粘を進行させる化合物としては、過酸化物、アジ化物、金属石けんの少なくとも1種があげられる。カチオン重合による硬化または増粘を進行させる化合物としては、無機酸またはルイス酸の少なくとも1種があげられる。配位重合による硬化または増粘を進行させる化合物としては、有機金属化合物があげられる。加硫による硬化または増粘を進行させる化合物としては、硫黄または硫黄化合物の少なくとも１種があげられる。 By using the lubricant composition of the present invention for assembling the first part and the second part, the friction between the first part and the second part is caused by being present as a liquid at the time of assembling. After the assembly, the first part and the second part can be connected after assembly.
The connection can be achieved by curing or thickening by polymerization or crosslinking of the lubricant composition of the present invention.
Curing or thickening of the lubricant composition of the present invention can be carried out by standing in the air at room temperature.
Curing or thickening can proceed by any of radical polymerization, cationic polymerization, coordination polymerization, and vulcanization. Examples of the compound that promotes curing or thickening by radical polymerization include at least one of peroxide, azide, and metal soap. Examples of the compound that promotes curing or thickening by cationic polymerization include at least one of an inorganic acid and a Lewis acid. Examples of the compound that promotes curing or thickening by coordination polymerization include organometallic compounds. Examples of the compound that promotes curing or thickening by vulcanization include sulfur and at least one sulfur compound.

本発明の潤滑剤組成物の硬化ないし増粘はまた、加熱により行うことができる。加熱による硬化または増粘を進行させる化合物として、アゾニトリル、アゾエステル、アゾアミド、アゾアミジン、アゾイミダゾリウム等があげられる。このような硬化促進用化合物は、本発明の潤滑剤組成物の全質量を基準として、0.01〜25質量%、好ましくは0.01〜10質量％の範囲で含ませることができる。
本発明の潤滑剤組成物の硬化ないし増粘はまた、紫外線照射により行うことができる。紫外線照射による硬化又は増粘を進行させる化合物として、ベンゾイン誘導体、ベンジルケタール、α-ヒドロキシアセトフェノン、α-アミノアセトフェノン、アシルフォスフォンオキサイド、チタノセン類、ヨードニウム塩系、スルフォニウム塩系等があげられる。このような硬化促進用化合物は、本発明の潤滑剤組成物の全質量を基準として、0.01〜25質量%、好ましくは0.01〜10質量％の範囲で含ませることができる。
なお、本明細書に記載の添加剤の濃度は有効成分の濃度である。つまり、添加剤が希釈品である場合は、希釈品中の有効成分の濃度を意味する。また、本発明の潤滑剤組成物がグリースの場合、添加剤の濃度は、グリース化した潤滑剤組成物の全質量を基準とする。 Curing or thickening of the lubricant composition of the present invention can also be performed by heating. Examples of the compound that promotes curing or thickening by heating include azonitrile, azoester, azoamide, azoamidine, azoimidazolium, and the like. Such a curing accelerating compound can be included in the range of 0.01 to 25% by mass, preferably 0.01 to 10% by mass, based on the total mass of the lubricant composition of the present invention.
Curing or thickening of the lubricant composition of the present invention can also be performed by ultraviolet irradiation. Examples of the compound that promotes curing or thickening by ultraviolet irradiation include benzoin derivatives, benzyl ketals, α-hydroxyacetophenone, α-aminoacetophenone, acyl phosphooxides, titanocenes, iodonium salts, sulfonium salts, and the like. Such a curing accelerating compound can be included in the range of 0.01 to 25% by mass, preferably 0.01 to 10% by mass, based on the total mass of the lubricant composition of the present invention.
In addition, the density | concentration of the additive described in this specification is a density | concentration of an active ingredient. That is, when the additive is a diluted product, it means the concentration of the active ingredient in the diluted product. When the lubricant composition of the present invention is grease, the concentration of the additive is based on the total mass of the lubricant composition made into grease.

本発明の潤滑剤組成物は、プレスフィット端子の膨出部及び／又は貫通穴に適用することができる。適用は、プレスフィット端子を潤滑剤組成物に浸漬することにより行うこともできるし、スプレーガン等を用いて噴霧することにより行うこともできる。刷毛等を用いて塗布することもできる。
本発明の組成物を適用後、室温（２５℃）において大気中に静置するか、又は加熱することにより、プリント基板とプレスフィット端子とを接続することができる。静置時間や加熱温度は、当業者であれば適宜選択することができる。例えば、スクアレンのみからなる本発明の潤滑剤組成物を室温（２５℃）において大気中で1000時間以上静置すると、接続し得る。この組成物を加熱により接続する場合、80〜150℃において24時間以上加熱するのが良い。また、例えばキリ油に硬化促進剤を添加した組成物を紫外線照射により接続する場合、60分間以上、紫外線を照射するのが良い。 The lubricant composition of the present invention can be applied to the bulge and / or through hole of a press-fit terminal. Application can be performed by immersing the press-fit terminal in the lubricant composition, or by spraying using a spray gun or the like. It can also be applied using a brush or the like.
After applying the composition of the present invention, the printed circuit board and the press-fit terminal can be connected by standing in the atmosphere at room temperature (25 ° C.) or heating. The standing time and the heating temperature can be appropriately selected by those skilled in the art. For example, when the lubricant composition of the present invention consisting only of squalene is allowed to stand in the atmosphere at room temperature (25 ° C.) for 1000 hours or longer, it can be connected. When connecting this composition by heating, it is good to heat at 80-150 degreeC for 24 hours or more. For example, when connecting a composition obtained by adding a hardening accelerator to tung oil by ultraviolet irradiation, it is preferable to irradiate with ultraviolet rays for 60 minutes or more.

本発明の潤滑剤組成物を用いて、電子装置を得ることができる。
本発明の潤滑剤組成物を用いて、電気的接点を得ることができる。
本発明の潤滑剤組成物を用いて、電気的な接続を得る方法を行うことができる。
本発明の潤滑剤組成物を用いて、プレスフィット接続によって電気的な接続を得る接点を得ることができる。
本発明の潤滑剤組成物を用いて、プレスフィット接続によって電気的な接続を得る方法を行うことができる。 An electronic device can be obtained using the lubricant composition of the present invention.
An electrical contact can be obtained using the lubricant composition of the present invention.
By using the lubricant composition of the present invention, a method for obtaining electrical connection can be performed.
Using the lubricant composition of the present invention, it is possible to obtain a contact for obtaining an electrical connection by press-fit connection.
Using the lubricant composition of the present invention, a method of obtaining electrical connection by press-fit connection can be performed.

実施例及び比較例の潤滑剤組成物を調製した。
実施例１〜５及び比較例１及び２は、基油をそのまま潤滑剤組成物とした。
実施例６は、基油としてのキリ油１００質量部に対して、硬化促進剤として、オクテン酸コバルトの溶剤希釈品（市販品、ミネラルスピリット希釈品、オクテン酸コバルトをコバルト原子換算濃度で１２質量％含有）を３質量部、トリメチルヘキサメチレンジアミンを１３質量部、2,2-ビス(4-グリシジルオキシフェニル)プロパンの重合物を５３質量部添加して混合したものを潤滑剤組成物とした。
実施例７は、基油としてのキリ油１００質量部に対して、増ちょう剤としてシリカ粒子を３３５質量部添加し、硬化促進剤として、トリメチルヘキサメチレンジアミンを３５質量部、2,2-ビス(4-グリシジルオキシフェニル)プロパンの重合物を１４０質量部添加して混合し、グリースとしたものを潤滑剤組成物とした。なお、実施例７で作成したグリースの混和ちょう度は430であり、混和ちょう度は硬化剤促進剤を添加してから３０分以内に計測した。
比較例３及び４は、市販の１液型エポキシ接着剤である。
上で調製した潤滑剤組成物を、それぞれ下記試験に供した。表１に、挿入試験及び引抜試験の試験条件を示す。表２及び表３に試験結果を示す。 The lubricant compositions of Examples and Comparative Examples were prepared.
In Examples 1 to 5 and Comparative Examples 1 and 2, the base oil was used as a lubricant composition as it was.
Example 6 is a solvent diluted product of cobalt octenoate (commercial product, mineral spirit diluted product, cobalt octenoate, 12 mass in terms of cobalt atom) as a hardening accelerator with respect to 100 parts by mass of a ground oil as a base oil. 3 parts by mass), 13 parts by mass of trimethylhexamethylenediamine, and 53 parts by mass of a polymer of 2,2-bis (4-glycidyloxyphenyl) propane were added and mixed to form a lubricant composition. .
In Example 7, 335 parts by mass of silica particles as a thickener is added to 100 parts by mass of a ground oil as a base oil, and 35 parts by mass of trimethylhexamethylenediamine as a curing accelerator. A lubricant composition was obtained by adding 140 parts by mass of a polymer of (4-glycidyloxyphenyl) propane and mixing it to obtain a grease. In addition, the penetration degree of the grease prepared in Example 7 was 430, and the penetration degree was measured within 30 minutes after the addition of the curing agent accelerator.
Comparative Examples 3 and 4 are commercially available one-component epoxy adhesives.
Each of the lubricant compositions prepared above was subjected to the following tests. Table 1 shows the test conditions for the insertion test and the pull-out test. Tables 2 and 3 show the test results.

＜試験＞
１−１．ヨウ素価
基油のヨウ素価をJIS K0070.6に従って測定した。具体的には、基油をシクロヘキサンに溶かした後、一塩化ヨウ素溶液を加え、暗所に放置後、ヨウ化カリウムおよび水を加え、チオ硫酸ナトリウム溶液で滴定し、溶液の色がうすい黄色になったとき、でんぷん溶液を加え、青が消えるまで滴定して、下記の式によりヨウ素価を求めた。
Ａ=（Ｂ−Ｃ）×f×1.269/Ｓ
Ａ：ヨウ素価
Ｂ：空試験に用いた0.1mol/ l チオ硫酸ナトリウム溶液の量（ｍｌ）
Ｃ：滴定に用いた0.1mol/ l チオ硫酸ナトリウム溶液の量（ｍｌ）
ｆ：チオ硫酸ナトリウム溶液のファクター
Ｓ：基油の質量（ｇ）
1.269：ヨウ素の原子量126.9×１/１００ <Test>
1-1. Iodine value The iodine value of the base oil was measured according to JIS K0070.6. Specifically, after dissolving the base oil in cyclohexane, add iodine monochloride solution, leave it in the dark, add potassium iodide and water, titrate with sodium thiosulfate solution, and the color of the solution becomes light yellow At that time, the starch solution was added and titrated until the blue color disappeared, and the iodine value was determined by the following formula.
A = (BC) × f × 1.269 / S
A: Iodine value B: Amount of 0.1 mol / l sodium thiosulfate solution used in the blank test (ml)
C: Amount of 0.1 mol / l sodium thiosulfate solution used for titration (ml)
f: Factor of sodium thiosulfate solution S: Mass of base oil (g)
1.269: Atomic weight of iodine 126.9 × 1/100

２−１．粘度
基油の粘度をJIS Z8803:2011に従って計測した。具体的には、円すい-平板形回転粘度計を用い、円すいと平板の間に試料を満たし、せん断速度10〜1000s-1の範囲での粘度を計測した。実施例１〜７、比較例１〜２について、代表値として２５℃における100s-1での粘度を表に記載した。なお、実施例１〜７、比較例１〜２について、せん断速度10〜1000s-1の範囲での粘度の変動はいずれも1%以内であった。また、常温で高い粘性を示し、半固体状であった比較例３、４の試料については、上記とは異なる方法、条件で計測された粘度を記載した。具体的には、比較例３については、２３℃における単一円筒形回転粘度計で20rpmでの粘度を記載した。比較例４については、２５℃における円すい-平板形回転粘度計で10rpmでの粘度を記載した。 2-1. Viscosity The viscosity of the base oil was measured according to JIS Z8803: 2011. Specifically, a cone-plate rotational viscometer was used to fill a sample between the cone and the plate, and the viscosity was measured in the range of a shear rate of 10 to 1000 s- 1 . About Examples 1-7 and Comparative Examples 1-2, the viscosity in 100 s- 1 in 25 degreeC was described in the table | surface as a typical value. In addition, about Examples 1-7 and Comparative Examples 1-2, the fluctuation | variation of the viscosity in the range of shear rate 10-1000 s- 1 was all within 1%. Moreover, about the sample of the comparative examples 3 and 4 which showed high viscosity at normal temperature and was a semi-solid state, the viscosity measured by the method and conditions different from the above was described. Specifically, for Comparative Example 3, the viscosity at 20 rpm was described with a single cylindrical rotational viscometer at 23 ° C. For Comparative Example 4, the viscosity at 10 rpm was described with a cone-plate rotary viscometer at 25 ° C.

３−１．挿入試験
プレスフィット端子挿入時の「挿入荷重」を計測することにより、潤滑剤組成物の摩擦低減効果（潤滑性）を評価した。
３−２．試験手順
（１）プリント基板をオートグラフの基礎に取り付けられた治具に固定した。
（２）プレスフィット端子の先端を潤滑剤組成物に浸漬し、プレスフィット端子に付着させた。
（３）プレスフィット端子をオートグラフの駆動部に取り付けられた治具に固定した。
（４）プレスフィット端子の先端が、プリント基板スルーホールの直上に来るようにプレスフィット端子の位置を調節した。
（５）一定速度でプレスフィット端子を駆動した。
（６）スルーホールにプレスフィット端子が挿入されるときの軸力（挿入荷重）を２５℃において計測した。
３−３．評価基準
無潤滑における挿入荷重を１００％とした相対値により評価した。
無潤滑の挿入荷重に対して65%以下 ○（合格）
無潤滑の挿入荷重に対して65%超 ×（不合格） 3-1. Insertion Test The friction reducing effect (lubricity) of the lubricant composition was evaluated by measuring the “insertion load” when inserting the press-fit terminal.
3-2. Test procedure (1) The printed circuit board was fixed to a jig attached to the base of the autograph.
(2) The tip of the press-fit terminal was immersed in the lubricant composition and adhered to the press-fit terminal.
(3) The press-fit terminal was fixed to a jig attached to the driving part of the autograph.
(4) The position of the press-fit terminal was adjusted so that the tip of the press-fit terminal was directly above the printed board through hole.
(5) The press-fit terminal was driven at a constant speed.
(6) The axial force (insertion load) when the press-fit terminal was inserted into the through hole was measured at 25 ° C.
3-3. Evaluation Criteria Evaluation was made based on a relative value with the insertion load with no lubrication taken as 100%.
65% or less of unlubricated insertion load ○ (Pass)
Over 65% for unlubricated insertion load × (failed)

４−１．引抜試験
プレスフィット端子引抜時の「引抜荷重」を計測することにより、プレスフィット端子の保持力低下の抑制を評価した。
４−２．試験手順
（１）実施例１〜５及び比較例１〜４は、プレスフィット端子挿入後のプリント基板を、100℃に加熱した常圧の恒温槽内にて72時間静置した。実施例６は、プレスフィット端子挿入後のプリント基板を、常温（２５℃）、常圧の室内にて72時間静置した。実施例７は、プレスフィット端子挿入後のプリント基板を、常温（２５℃）、常圧の室内にて24時間静置した。
（２）加熱後の実施例１〜５及び比較例１〜４のプリント基板を室温下（２５℃）で冷却した。なお、プレスフィット端子挿入直後の引抜荷重を測定する場合、上記（１）および（２）の手順は省略した。
（３）プリント基板をオートグラフの基礎に取り付けられた治具に固定した。
（４）オートグラフの駆動部に取り付けられた治具を一定速度で駆動し、プレスフィット端子を引き抜いた。
（５）プリント基板スルーホールからプレスフィット端子が引き抜かれるときの軸力（引抜荷重）を２５℃において計測した。
４−３．評価基準
無潤滑における挿入直後の引抜荷重を１００％とした、各潤滑剤組成物の挿入直後の値と、硬化後の値との差により評価した。
硬化前後の引抜荷重の差が+15%以上 ○（合格）
硬化前後の引抜荷重の差が+15%未満 ×（不合格） 4-1. Pull-out test By measuring the "pull-out load" at the time of press-fit terminal pull-out, the suppression of decrease in holding force of the press-fit terminal was evaluated.
4-2. Test Procedure (1) In Examples 1 to 5 and Comparative Examples 1 to 4, the printed circuit board after the press-fit terminal was inserted was allowed to stand for 72 hours in a constant pressure bath heated to 100 ° C. In Example 6, the printed circuit board after the press-fit terminal was inserted was allowed to stand for 72 hours in a room temperature (25 ° C.) and normal pressure. In Example 7, the printed circuit board after the press-fit terminal was inserted was allowed to stand for 24 hours in a room temperature (25 ° C.) and normal pressure.
(2) The printed circuit boards of Examples 1 to 5 and Comparative Examples 1 to 4 after heating were cooled at room temperature (25 ° C.). When measuring the pulling load immediately after the press-fit terminal was inserted, the procedures (1) and (2) were omitted.
(3) The printed circuit board was fixed to a jig attached to the base of the autograph.
(4) The jig attached to the drive part of the autograph was driven at a constant speed, and the press-fit terminal was pulled out.
(5) The axial force (pull-out load) when the press-fit terminal was pulled out from the printed board through hole was measured at 25 ° C.
4-3. Evaluation Criteria Evaluation was made based on the difference between the value immediately after insertion of each lubricant composition and the value after curing, with the pulling load immediately after insertion without lubrication being 100%.
Difference in pull-out load before and after curing + 15% or more ○ (Pass)
Difference in drawing load before and after curing is less than + 15% x (failed)

Figure 2018199763
Figure 2018199763

Figure 2018199763
Figure 2018199763

Figure 2018199763
Figure 2018199763

Claims (7)

ヨウ素価が１００以上である不飽和化合物を含有する、プレスフィット用潤滑剤組成物。   A lubricant composition for press-fit containing an unsaturated compound having an iodine value of 100 or more. 前記不飽和化合物が乾性油または半乾性油である、請求項１記載の潤滑剤組成物。   The lubricant composition according to claim 1, wherein the unsaturated compound is a drying oil or a semi-drying oil. 前記不飽和化合物が、スクアレン、ドコサヘキサエン酸（ＤＨＡ）、キリ油、亜麻仁油、荏油、マシ油、サフラワー油、ひまわり油、ゴマ油、ナタネサラダ油、大豆油、綿実油、米油、及びこれらの混合物からなる群から選ばれる請求項１記載の潤滑剤組成物。   The unsaturated compound is squalene, docosahexaenoic acid (DHA), tung oil, linseed oil, coconut oil, mustard oil, safflower oil, sunflower oil, sesame oil, rapeseed oil, soybean oil, cottonseed oil, rice oil, and mixtures thereof The lubricant composition according to claim 1, which is selected from the group consisting of: 更に、過酸化物、アジ化物、金属石けん、無機酸またはルイス酸、有機金属化合物、硫黄または硫黄化合物、アミン、チオール化合物、有機リン化合物、イミダゾール化合物、オレフィン、環状エーテル、メタクリル酸化合物、アクリル酸化合物、イソシアネート化合物、シリコーン化合物、フェノール化合物、ウレタン化合物、アゾニトリル、アゾエステル、アゾアミド、アゾアミジン、アゾイミダゾリウム、ベンゾイン誘導体、ベンジルケタール、α-ヒドロキシアセトフェノン、α-アミノアセトフェノン、アシルフォスフォンオキサイド、チタノセン類、ヨードニウム塩系、スルフォニウム塩系およびこれらの混合物からなる群から選ばれる化合物を含有する、請求項１〜３のいずれか１項に記載のプレスフィット用潤滑剤組成物。   Further, peroxide, azide, metal soap, inorganic acid or Lewis acid, organometallic compound, sulfur or sulfur compound, amine, thiol compound, organophosphorus compound, imidazole compound, olefin, cyclic ether, methacrylic acid compound, acrylic acid Compound, isocyanate compound, silicone compound, phenolic compound, urethane compound, azonitrile, azoester, azoamide, azoamidine, azoimidazolium, benzoin derivative, benzyl ketal, α-hydroxyacetophenone, α-aminoacetophenone, acyl phosphooxide, titanocene, The lubricant composition for press fits according to any one of claims 1 to 3, comprising a compound selected from the group consisting of an iodonium salt system, a sulfonium salt system, and a mixture thereof. 更に、増ちょう剤を含む、請求項１〜４のいずれか１項に記載のプレスフィット用潤滑剤組成物。   Furthermore, the lubricant composition for pressfits of any one of Claims 1-4 containing a thickener. プレスフィット端子又はプリント基板のスルーホールのいずれか一方又は両方に、請求項１〜５のいずれか１項記載の潤滑剤組成物が適用されている、電気的接点。   The electrical contact in which the lubricant composition of any one of Claims 1-5 is applied to any one or both of a press-fit terminal or the through hole of a printed circuit board. プレスフィット端子又はプリント基板のスルーホールのいずれか一方又は両方に、請求項１〜５のいずれか１項記載の潤滑剤組成物を適用することを含む、プレスフィット接続方法。   The press fit connection method including applying the lubricant composition of any one of Claims 1-5 to any one or both of a press fit terminal or a through hole of a printed circuit board.
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