JP2015157368A - Recovery device of low melting point alloy - Google Patents
Recovery device of low melting point alloy Download PDFInfo
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- JP2015157368A JP2015157368A JP2014031929A JP2014031929A JP2015157368A JP 2015157368 A JP2015157368 A JP 2015157368A JP 2014031929 A JP2014031929 A JP 2014031929A JP 2014031929 A JP2014031929 A JP 2014031929A JP 2015157368 A JP2015157368 A JP 2015157368A
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- point alloy
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- 238000002844 melting Methods 0.000 title claims abstract description 49
- 230000008018 melting Effects 0.000 title claims abstract description 48
- 239000000956 alloy Substances 0.000 title claims abstract description 45
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 45
- 238000011084 recovery Methods 0.000 title claims description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 9
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 5
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052738 indium Inorganic materials 0.000 claims abstract description 5
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 4
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052793 cadmium Inorganic materials 0.000 claims abstract description 4
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 9
- 239000011859 microparticle Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000000155 melt Substances 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000010730 cutting oil Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Moulds For Moulding Plastics Or The Like (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
本発明は、低融点合金の回収装置に関するものである。 The present invention relates to a low melting point alloy recovery device.
低融点合金は、特許文献１のように、樹脂成形において中子として用いることが知られている。この場合、低融点合金中子は、高周波加熱又は熱媒体による加熱により溶出させた後、高圧・高温液体を成形品内に噴射させ、低融点合金を除去して回収するようにしている。
他方、低融点合金は、タービンブレード、ジェットエンジン部品などの複雑な形状部品のチャッキング材として利用されることもある。さらに、複雑な形状部品の固定に際しては、低融点合金で鋳込み一体化することにより、締付応力変形や、熱変形を防止するようにしている。
しかるに成形後は、切削加工により複雑な形状部品を取り出すことが行われるところ、その切削屑には、低融点合金と金属部品とが混合した状態で廃棄されていた。
It is known that a low-melting-point alloy is used as a core in resin molding as disclosed in Patent Document 1. In this case, the low-melting-point alloy core is eluted by high-frequency heating or heating with a heat medium, and then a high-pressure / high-temperature liquid is injected into the molded product to remove and recover the low-melting-point alloy.
On the other hand, the low melting point alloy may be used as a chucking material for complicated shaped parts such as turbine blades and jet engine parts. Furthermore, when fixing complicated shaped parts, casting stress is integrated with a low melting point alloy to prevent tightening stress deformation and thermal deformation.
However, after forming, a complicated shaped part is taken out by cutting, and the cutting waste is discarded in a mixed state of a low melting point alloy and a metal part.
しかし、低融点合金は高価であり、回収して再利用することが望ましい。 However, low melting point alloys are expensive and are desirably recovered and reused.
したがって、本発明の課題は、上記の切削屑などに例示される、金属微小体と低融点合金との混合物（混合液）から、低融点合金を回収して利用することにより、製造コストの低減を図ることができるようにすることにある。 Therefore, an object of the present invention is to reduce the manufacturing cost by recovering and using the low melting point alloy from the mixture (mixed liquid) of the metal microscopic object and the low melting point alloy exemplified by the above-mentioned cutting scraps. It is to be able to plan.
上記課題を解決した本発明は次記のとおりである。
＜請求項１記載の発明＞
ビスマス、スズ、鉛、インジウム、カドミウム、アンチモンからなる群から選ばれた、１６℃〜１８３℃の温度範囲で溶融する低融点合金と、金属微小体とを分離し、低融点合金を回収する装置であって、
ケージと、このケージ内に装入され、周壁面に篩が形成された、前記金属微小体と前記低融点合金との混合物を投入されるバスケットと、前記バスケットを軸芯回りに回転させる回転手段と、前記ケージ内に熱風を流通させ、前記低融点合金の溶融温度以上に高めて溶融を図る加熱手段とを備えたことを特徴とする低融点合金の回収装置。
The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
An apparatus for separating a low melting point alloy selected from the group consisting of bismuth, tin, lead, indium, cadmium and antimony and melting at a temperature range of 16 ° C. to 183 ° C. Because
A cage, a basket charged in the cage and having a sieve formed on a peripheral wall thereof, into which the mixture of the metal microparticles and the low-melting-point alloy is charged, and rotating means for rotating the basket around an axis And a heating means for circulating the hot air through the cage to raise the melting temperature of the low melting point alloy or higher to melt the low melting point alloy.
＜請求項２記載の発明＞
前記ケージ外部に設けたブロワーと前記ケージとを連絡し、前記ブロワーから前記ケージへの吐出側通風ダクト、及び、前記ケージから前記ブロワーへの吸い込み側通風ダクトを備え、通風の循環路を構成し、その循環経路にヒータが設けられ、前記加熱手段とされている請求項１記載の低融点合金の回収装置。
<Invention of Claim 2>
The blower provided outside the cage communicates with the cage, and includes a discharge-side ventilation duct from the blower to the cage and a suction-side ventilation duct from the cage to the blower to form a ventilation circulation path. The low melting point alloy recovery device according to claim 1, wherein a heater is provided in the circulation path to serve as the heating means.
本発明によれば、金属微小体と低融点合金との混合物（混合液）から、低融点合金を回収して利用することにより、製造コストの低減を図ることができる。 According to the present invention, it is possible to reduce the manufacturing cost by recovering and using the low melting point alloy from the mixture (mixed liquid) of the metal fine body and the low melting point alloy.
以下、本発明の実施の形態について詳説する。 Hereinafter, embodiments of the present invention will be described in detail.
〔低融点合金について〕
本発明は、ビスマス、スズ、鉛、インジウム、カドミウム、アンチモンからなる群から選ばれた、１６℃〜１８３℃の温度範囲で溶融する低融点合金の回収を目的とするものである。特には、ビスマス及びスズが主体で、必要によりインジウムを添加する低融点合金である。
この種の低融点合金は、大阪アサヒメタル工場製の「Ｕアロイ」シリーズが代表的なものである。融点は１６℃〜１８３℃の範囲内で多種類販売されている。
本発明に係る金属微小体との分離を行う場合、融点が９０℃〜１５０℃の範囲内の低融点合金が特に対象とすることができる。
[About low melting point alloys]
The object of the present invention is to recover a low melting point alloy which is selected from the group consisting of bismuth, tin, lead, indium, cadmium and antimony and which melts in a temperature range of 16 ° C to 183 ° C. In particular, it is a low melting point alloy mainly composed of bismuth and tin and, if necessary, indium added.
A typical example of this type of low melting point alloy is the “U Alloy” series manufactured by Osaka Asahi Metal Factory. Many melting points are sold in the range of 16 ° C to 183 ° C.
When performing separation from the metal microparticle according to the present invention, a low melting point alloy having a melting point in the range of 90 ° C. to 150 ° C. can be particularly targeted.
〔回収形態の概要〕
本発明の回収装置は、ケージ１０と、このケージ１０内に装入され、周壁面１１ａに篩が形成された、前記金属微小体と前記低融点合金との混合物を投入されるバスケット１１と、前記バスケット１１を軸芯回りに回転させる回転手段１２と、前記ケージ１０内に熱風を流通させ、前記低融点合金の溶融温度以上に高めて溶融を図る加熱手段とを備えている。
[Outline of collection form]
The collection device of the present invention includes a
さらに、ケージ１０外部にはブロワー２０が設けられ、ケージ１０との連絡が図られている。ブロワー２０からケージ１０への吐出側通風ダクト２１、ケージ１０からブロワー２０への吸い込み側通風ダクト２２が設けられ、通風の循環路が構成され、その循環経路内にヒータ（図示せず）が設けられ、前記低融点合金をその溶融温度以上に高めて溶融を図る熱風の加熱手段とされている。
Further, a
かかる装置においては、ケージ１０の蓋１０ａを開いて、バスケット１１内に金属微小体と低融点合金との混合物を投入した後、蓋１０ａを閉める。
次いで、ブロワー２０の循環路の適宜の位置から窒素ガスを導入し、循環路及びケージ１０内の空気を追い出す。
In such an apparatus, the
Next, nitrogen gas is introduced from an appropriate position in the circulation path of the
続いて、回転手段１２の回転駆動モータ１２ａを起動し、チェーン１２ｂを介してバスケット１１の回転軸１２ｃを回転させ、バスケット１１を回転させる。
この回転の初期では遅い回転とし、ヒータ（図示せず）をオンし、ケージ１０内の温度を高める。たとえば、大阪アサヒメタル工場製の」低融点合金（「Ｕアロイ−１３８」）を回収する場合、１８０℃以上の昇温するのが好ましい。
この昇温の後期又は終了後に、バスケット１１の高速回転と低速回転とを繰り返し、低融点合金の遠心分離と撹拌を行う。
Subsequently, the
At the initial stage of this rotation, the rotation is slow, a heater (not shown) is turned on, and the temperature in the
Later or after the temperature increase, the
バスケット１１を通る遠心分離された低融点合金は、たとえばケージ１０の最下部から回収容器３０内に回収する。
The centrifuged low melting point alloy passing through the
ここで、流通させるガスは膨張するので、たとえばケージ１０の蓋１０ａに排気フィルタを設け（図示せず）、ガスを逃がすようにするのが望ましい。
Here, since the gas to be circulated expands, for example, it is desirable to provide an exhaust filter (not shown) on the
上記例において、空気をパージして窒素などの不活性ガスを循環させるのは、低融点合金の酸化を防止するためである。また、切削屑中に残存する切削油が昇温によってヒュームとなり、気散する分を排除するためでもある。
他方、低融点合金の酸化を防止すると、金属微小体との分離性が高まることの知見に基づいている。
In the above example, air is purged to circulate an inert gas such as nitrogen in order to prevent oxidation of the low melting point alloy. Moreover, it is also for eliminating the part which the cutting oil which remains in cutting waste turns into a fume by temperature rising, and is dissipated.
On the other hand, it is based on the knowledge that if the low-melting point alloy is prevented from being oxidized, the separability from the metal microparticles increases.
（実施例）
大阪アサヒメタル工場製の」低融点合金（「Ｕアロイ−１３８」）で鋳込み一体化して成形した後の切削屑を、本発明装置により回収処理した。その結果、問題なく、高収率をもって回収できることが判明した。
(Example)
The cutting waste after being cast and integrated with a “low melting point alloy (“ U Alloy-138 ”) manufactured by Osaka Asahi Metal Factory was recovered by the apparatus of the present invention. As a result, it was found that the product can be recovered with a high yield without any problem.
Claims (2)
ケージと、このケージ内に装入され、周壁面に篩が形成された、前記金属微小体と前記低融点合金との混合物を投入されるバスケットと、前記バスケットを軸芯回りに回転させる回転手段と、前記ケージ内に熱風を流通させ、前記低融点合金の溶融温度以上に高めて溶融を図る加熱手段とを備えたことを特徴とする低融点合金の回収装置。 An apparatus for separating a low melting point alloy selected from the group consisting of bismuth, tin, lead, indium, cadmium and antimony and melting at a temperature range of 16 ° C. to 183 ° C. Because
A cage, a basket charged in the cage and having a sieve formed on a peripheral wall thereof, into which the mixture of the metal microparticles and the low-melting-point alloy is charged, and rotating means for rotating the basket around an axis And a heating means for circulating the hot air through the cage to raise the melting temperature of the low melting point alloy or higher to melt the low melting point alloy.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2017061725A (en) * | 2015-09-25 | 2017-03-30 | 株式会社流機エンジニアリング | Low melting point alloy recovery device and recovery method |
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| CN109825719B (en) * | 2019-03-20 | 2020-10-13 | 北京科技大学 | Method and device for separating lead-antimony alloy by virtue of supergravity |
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| US4029302A (en) * | 1974-06-06 | 1977-06-14 | Kloeckner-Humboldt-Deutz Ag | Device for separation of mixtures of at least partially molten metals and/or metallic compounds into at least two phases of different density |
| JPS5214501A (en) * | 1975-07-25 | 1977-02-03 | Hirakawa Keigokin:Kk | Solubilizing furnace |
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