JP2001212665A - Manufacturing method for wear resistance clad plate - Google Patents
Manufacturing method for wear resistance clad plateInfo
- Publication number
- JP2001212665A JP2001212665A JP2000026266A JP2000026266A JP2001212665A JP 2001212665 A JP2001212665 A JP 2001212665A JP 2000026266 A JP2000026266 A JP 2000026266A JP 2000026266 A JP2000026266 A JP 2000026266A JP 2001212665 A JP2001212665 A JP 2001212665A
- Authority
- JP
- Japan
- Prior art keywords
- wear
- resistant
- clad plate
- particles
- brazing material
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 28
- 239000000463 material Substances 0.000 claims abstract description 122
- 239000002245 particle Substances 0.000 claims abstract description 73
- 239000010953 base metal Substances 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract 2
- 238000005219 brazing Methods 0.000 claims description 72
- 230000002265 prevention Effects 0.000 claims description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 230000001590 oxidative effect Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 10
- 238000005299 abrasion Methods 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 7
- 239000010941 cobalt Substances 0.000 claims description 6
- 229910017052 cobalt Inorganic materials 0.000 claims description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 5
- 239000010962 carbon steel Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 3
- 230000003064 anti-oxidating effect Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000005304 joining Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000011195 cermet Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はセメント、製鉄の製
造装置等で用いるシュート、ホッパー、ファン、各種ラ
イナー及びスクリーンの摩耗部に使用される耐摩耗性ク
ラッド板の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a wear-resistant clad plate used for a chute, a hopper, a fan, various liners, and a wear portion of a screen used in an apparatus for producing cement and steel.
【０００２】[0002]
【従来の技術】耐摩耗性クラッド板は、タングステンカ
ーバイド粒子等の耐摩耗性粒子を用いて作る耐摩耗層と
炭素鋼等の母材金属からなる母材金属層とが積層された
層構造を有している。例えば、耐摩耗性クラッド板をシ
ュートに用いる場合は、セメント、製鉄原料が移送され
る表面部に耐摩耗層が位置し、母材金属層がシュート本
体側に位置するように耐摩耗性クラッド板をシュート本
体上に配置して、母材金属層をシュート本体に溶接等に
より接合する。この種の耐摩耗性クラッド板の製造方法
としては、例えば、耐摩耗層を構成する耐摩耗性粒子か
らなる焼結板と母材金属層を構成する母材金属板とをニ
ッケルロウ等のロウ材で接合して製造する方法がある。2. Description of the Related Art A wear-resistant clad plate has a layer structure in which a wear-resistant layer made of wear-resistant particles such as tungsten carbide particles and a base metal layer made of a base metal such as carbon steel are laminated. Have. For example, when a wear-resistant clad plate is used for a chute, the wear-resistant clad plate is positioned such that a wear-resistant layer is located on a surface to which cement and steelmaking raw materials are transferred, and a base metal layer is located on the chute body side. Is arranged on the chute main body, and the base metal layer is joined to the chute main body by welding or the like. As a method for producing this type of wear-resistant clad plate, for example, a sintered plate composed of wear-resistant particles constituting a wear-resistant layer and a base metal plate constituting a base metal layer are formed by soldering a brazing material such as nickel brazing. There is a method of manufacturing by joining with materials.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の製造方法では、耐摩耗性粒子の焼結板と母材
金属板とをロウ材で接合しなければならず、量産化の場
合、製造が煩雑であった。また、焼結板は製造できる大
きさに限界があるので、従来の製造方法では、耐摩耗性
クラッド板の面方向の寸法を大きくすることができなか
った。例えば、耐摩耗性粒子としてタングステンカーバ
イド（ＷＣ）粒子を用い、厚み１０ｍｍの耐摩耗性クラ
ッド板を作る場合、面方向の寸法は５ｃｍ×５ｃｍが限
界である。そのため、耐摩耗性クラッド板をシュート等
に固定する際に耐摩耗性クラッド板の必要な枚数が多く
なり、耐摩耗性クラッド板の固定の作業が繁雑であっ
た。However, in such a conventional manufacturing method, a sintered plate of wear-resistant particles and a base metal plate must be joined with a brazing material. Manufacturing was complicated. Further, since there is a limit to the size of a sintered plate that can be manufactured, the conventional manufacturing method cannot increase the dimension of the wear-resistant clad plate in the surface direction. For example, when tungsten carbide (WC) particles are used as wear-resistant particles to produce a 10-mm-thick wear-resistant clad plate, the dimension in the plane direction is limited to 5 cm × 5 cm. Therefore, when the wear-resistant clad plate is fixed to a chute or the like, the required number of wear-resistant clad plates increases, and the work of fixing the wear-resistant clad plate is complicated.
【０００４】本発明の目的は、簡単且つ安価に耐摩耗性
クラッド板を製造できる耐摩耗性クラッド板の製造方法
を提供することにある。An object of the present invention is to provide a method for producing a wear-resistant clad plate which can be produced easily and inexpensively.
【０００５】本発明の他の目的は、面方向の寸法を大き
くできる耐摩耗性クラッド板の製造方法を提供すること
にある。Another object of the present invention is to provide a method of manufacturing a wear-resistant clad plate which can increase the dimension in the plane direction.
【０００６】[0006]
【課題を解決するための手段】本発明は、耐摩耗層と母
材金属層とを有する耐摩耗性クラッド板の製造方法を改
良の対象とする。本発明では、母材金属層を構成する母
材金属板と、耐摩耗性粒子と耐摩耗性粒子及び母材金属
板より低融点のロウ材とを含む耐摩耗層形成材料とを重
ねた状態のクラッド板形成材料を作り、このクラッド板
形成材料を無酸化雰囲気中で加熱してロウ材を溶融して
から冷却して耐摩耗性クラッド板を製造する。クラッド
板形成材料は、母材金属板上に耐摩耗層形成材料を配置
して形成しても構わないし、耐摩耗層形成材料上に母材
金属板を配置して形成しても構わない。本発明のように
クラッド板形成材料を無酸化雰囲気中で加熱してロウ材
を溶融してから冷却すれば、耐摩耗性粒子及びロウ材が
酸化されることなく、耐摩耗性粒子と母材金属とを接合
して耐摩耗性クラッド板を製造することができる。その
ため、従来のように耐摩耗性粒子の焼結板と母材金属板
とをロウ材で接合する製造方法に比べて製造が容易にな
り、量産化を図りやすい。また、従来のように焼結板を
用いずに製造するので、耐摩耗性クラッド板の面方向の
寸法を大きくして所望の大きさの耐摩耗性クラッド板を
得ることができる。そのため、耐摩耗性クラッド板をシ
ュート等に固定する際に耐摩耗性クラッド板の必要な枚
数が少なくて済み、耐摩耗性クラッド板の固定の作業が
容易になる。SUMMARY OF THE INVENTION The present invention is directed to an improved method for producing a wear-resistant clad plate having a wear-resistant layer and a base metal layer. In the present invention, a state in which a base metal plate constituting a base metal layer and a wear-resistant layer forming material including wear-resistant particles, abrasion-resistant particles and a brazing material having a lower melting point than the base metal plate is superimposed. Is formed in a non-oxidizing atmosphere to melt the brazing material and then cooled to produce a wear-resistant clad plate. The clad plate forming material may be formed by disposing a wear-resistant layer forming material on a base metal plate, or may be formed by disposing a base metal plate on a wear-resistant layer forming material. If the clad plate forming material is heated in a non-oxidizing atmosphere to melt the brazing material and then cooled as in the present invention, the wear-resistant particles and the brazing material are not oxidized, and the wear-resistant particles and the base material are not oxidized. The wear-resistant clad plate can be manufactured by bonding with a metal. Therefore, as compared with a conventional manufacturing method in which a sintered plate of wear-resistant particles and a base metal plate are joined with a brazing material, the manufacturing is facilitated, and mass production is facilitated. In addition, since it is manufactured without using a sintered plate as in the related art, it is possible to obtain a wear-resistant clad plate having a desired size by increasing the dimension in the surface direction of the wear-resistant clad plate. Therefore, when the wear-resistant clad plate is fixed to the chute or the like, the required number of wear-resistant clad plates can be reduced, and the work of fixing the wear-resistant clad plate becomes easy.
【０００７】ロウ材は、シート状、ペースト状及び粒子
状の種々の形状のものを用いることができる。ロウ材と
して粒子状のロウ材粒子を用いる場合は、耐摩耗性粒子
とロウ材粒子とが混合された混合粒子材料により耐摩耗
層形成材料を形成すればよい。このように耐摩耗層形成
材料を混合粒子材料により形成すれば、耐摩耗性粒子と
ロウ材粒子とが相互に接触する面積を大きくでき、耐摩
耗性粒子とロウ材との接合を確実に行うことができる。As the brazing material, various shapes such as a sheet, a paste and a particle can be used. When particulate brazing material particles are used as the brazing material, the material for forming the wear-resistant layer may be formed of a mixed particle material in which the wear-resistant particles and the brazing material particles are mixed. By forming the wear-resistant layer forming material from the mixed particle material in this manner, the area where the wear-resistant particles and the brazing material particles contact each other can be increased, and the joining between the wear-resistant particles and the brazing material is reliably performed. be able to.
【０００８】クラッド板形成材料を無酸化雰囲気中で加
熱する方法としては、種々の方法を採用できる。例え
ば、クラッド板形成材料を真空炉内で加熱してもよい
し、クラッド板形成材料を非酸化ガス雰囲気中で加熱し
てもよい。クラッド板形成材料を真空炉内で加熱するに
は、ロウ材粒子が溶融しても蒸発しない真空度で加熱を
行う。例えば、ロウ材粒子としてニッケルを主成分とす
るロウ材粒子を用いる場合には、クラッド板形成材料を
１０２〜１０−４Ｐａの真空度中において、９４０〜１
１８０℃の温度で２０〜４０分加熱すればよい。クラッ
ド板形成材料を非酸化ガス雰囲気中で加熱する場合に
は、非酸化ガスとして、不活性ガス（Ａｒ，Ｈｅ等），
窒素，水素等を用いることができる。耐摩耗性粒子とし
ては、コバルト，ニッケル等をコーティングしたタング
ステンカーバイド（ＷＣ）粒子，ＴｉＣ粒子，ＴｉＮ粒
子等を用いることができる。ロウ材粒子としては、ニッ
ケルロウ，銀ロウ，コバルトロウ，銅ロウ，金ロウ等を
用いることができる。母材金属板としては、炭素鋼，ス
テンレス鋼，銅，黄銅等を用いることができる。また、
母材金属板は圧延板に限定されるものでなく、鋳鉄板等
を用いてもよい。Various methods can be employed for heating the clad plate forming material in a non-oxidizing atmosphere. For example, the clad plate forming material may be heated in a vacuum furnace, or the clad plate forming material may be heated in a non-oxidizing gas atmosphere. In order to heat the clad plate forming material in a vacuum furnace, heating is performed at a degree of vacuum that does not evaporate even when the brazing material particles are melted. For example, when a brazing material particle containing nickel as a main component is used as the brazing material particle, the cladding plate forming material is 940 to 1 in a vacuum degree of 10 2 to 10 −4 Pa.
What is necessary is just to heat at the temperature of 180 degreeC for 20 to 40 minutes. When the clad plate forming material is heated in a non-oxidizing gas atmosphere, an inert gas (Ar, He, etc.),
Nitrogen, hydrogen, or the like can be used. As the wear-resistant particles, tungsten carbide (WC) particles coated with cobalt, nickel, or the like, TiC particles, TiN particles, and the like can be used. As the brazing material particles, nickel brazing, silver brazing, cobalt brazing, copper brazing, gold brazing, or the like can be used. As the base metal plate, carbon steel, stainless steel, copper, brass, or the like can be used. Also,
The base metal plate is not limited to a rolled plate, and a cast iron plate or the like may be used.
【０００９】クラッド板形成材料を無酸化雰囲気中で加
熱するには、一面に開口部を有する箱型のロウ材流出防
止枠内にクラッド板形成材料を配置した状態で行うのが
好ましい。このようなロウ材流出防止枠を用いると耐摩
耗層形成材料を母材金属板とを容易に重ねられ、しかも
溶融したロウ材が流出するのを防止できる。ロウ材流出
防止枠は、ロウ材より高融点の材料により形成でき、カ
ーボン，アルミナ，炭素鋼，ステンレス鋼，その他の金
属系材料，セラミック系材料等を用いることができる。
剥離性の悪い金属でロウ材流出防止枠を形成する場合
は、ボロン等の剥離剤をロウ材流出防止枠の内面に塗布
すればよい。In order to heat the clad plate forming material in a non-oxidizing atmosphere, it is preferable that the clad plate forming material is placed in a box-shaped brazing material outflow prevention frame having an opening on one surface. When such a brazing material outflow prevention frame is used, the wear-resistant layer forming material can be easily overlapped with the base metal plate, and the molten brazing material can be prevented from flowing out. The brazing material outflow prevention frame can be formed of a material having a higher melting point than the brazing material, and can be made of carbon, alumina, carbon steel, stainless steel, other metal materials, ceramic materials, or the like.
When the brazing material outflow prevention frame is formed of a metal having poor releasability, a release agent such as boron may be applied to the inner surface of the brazing material outflow prevention frame.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施の形態の一例
を図面を参照して詳細に説明する。本実施の形態の耐摩
耗性クラッド板は次のようにして製造した。まず、図１
に示すように、アルミナからなる直方体の輪郭を有し一
面に開口部を有する箱型のロウ材流出防止枠１を用意す
る。このようなロウ材流出防止枠は、後の工程で加熱す
る温度（本例では、１２００℃）では溶融しない金属を
用いて形成することができる。剥離性の悪い金属でロウ
材流出防止枠を形成する場合は、ボロン等の剥離剤をロ
ウ材流出防止枠の内面に塗布すればよい。次にロウ材流
出防止枠１内に厚み９ｍｍの炭素鋼からなる母材金属板
２を配置する。本例では、母材金属板２としてＳＳ４０
０軟鋼を用いた。次に、コバルトをコーティングした平
均径１ｍｍのタングステンカーバイド粒子からなる耐摩
耗性粒子と平均径２０μｍのロウ材粒子とを混合した混
合粒子材料からなる耐摩耗層形成材料３を厚みが３ｍｍ
になるように母材金属板２上に配置して（重ねた状態
で）クラッド板形成材料４を作る。本例では、耐摩耗性
粒子として中国のZIGONG CEMENTED CARBIDE PLANT社
から販売されているYF12球状サーメット粉（タングステ
ンカーバイド粒子８８重量％，コバルト１２重量％）を
用い、ロウ材粒子としてニッケルを主成分とするＪＩＳ
−ＢＮｉ−２を用いた。なお、耐摩耗層形成材料３をロ
ウ材流出防止枠１内に先に配置し、耐摩耗層形成材料３
上に母材金属板２を配置しても構わない。Embodiments of the present invention will be described below in detail with reference to the drawings. The wear-resistant clad plate of the present embodiment was manufactured as follows. First, FIG.
As shown in FIG. 1, a box-shaped brazing material outflow prevention frame 1 having a rectangular parallelepiped outline made of alumina and having an opening on one side is prepared. Such a brazing material outflow prevention frame can be formed using a metal that does not melt at a temperature to be heated in a later step (1200 ° C. in this example). When the brazing material outflow prevention frame is formed of a metal having poor releasability, a release agent such as boron may be applied to the inner surface of the brazing material outflow prevention frame. Next, a base metal plate 2 made of carbon steel having a thickness of 9 mm is arranged in the brazing material outflow prevention frame 1. In this example, SS40 is used as the base metal plate 2.
0 mild steel was used. Next, a wear-resistant layer forming material 3 made of a mixed particle material in which abrasion-resistant particles made of tungsten carbide particles having an average diameter of 1 mm coated with cobalt and brazing material particles having an average diameter of 20 μm are mixed to a thickness of 3 mm
Is formed on the base metal plate 2 (in a state of being overlapped) to form the clad plate forming material 4. In this example, YF12 spherical cermet powder (88% by weight of tungsten carbide particles, 12% by weight of cobalt) sold by ZIGONG CEMENTED CARBIDE PLANT of China is used as wear-resistant particles, and nickel is used as a brazing material particle. JIS
-BNi-2 was used. Note that the wear-resistant layer forming material 3 is first placed in the brazing material outflow prevention frame 1 and
The base metal plate 2 may be disposed thereon.
【００１１】次に、図２に示すようにクラッド板形成材
料４を配置したロウ材流出防止枠１を真空炉５内に配置
する。真空炉５は、真空炉５内を加熱する一対のヒータ
６，６と、真空炉５内の空気を外部に排出し真空炉５内
の真空度を高める空気排気管７とを有している。次に空
気排気管７を通して真空炉５内の空気を外部に排出し、
真空炉５内の真空度を５×１０−３Ｐａとし真空炉内を
ほぼ無酸化雰囲気とした。この真空度は、後の工程でロ
ウ材粒子が溶融しても蒸発しない真空度である。次にこ
の真空度を維持した状態で一対のヒータ６，６を用い
て、ロウ材流出防止枠１と一緒にクラッド板形成材料４
を加熱する。加熱は図３に示すように、１時間かけて９
５０℃まで昇温して、９５０℃の加熱を１０分間続ける
（符号Ａ）。次に、３０分かけて１１７０℃まで昇温し
て、１１７０℃の加熱を２０分間続ける（符号Ｂ）。そ
の後、４時間かけて冷却する。これによりロウ材粒子が
溶融した後に固化して耐摩耗性粒子と母材金属板とが接
続され、図４に示すような厚み９ｍｍの母材金属層１２
と厚み２．５ｍｍの耐摩耗層１３とが積層された耐摩耗
性クラッド板１４を得ることができる。本例のように耐
摩耗性クラッド板１４を製造すれば、耐摩耗性クラッド
板の面方向の寸法を大きくして所望の大きさの耐摩耗性
クラッド板を得ることができる。Next, as shown in FIG. 2, the brazing material outflow prevention frame 1 on which the clad plate forming material 4 is disposed is placed in a vacuum furnace 5. The vacuum furnace 5 has a pair of heaters 6 and 6 for heating the inside of the vacuum furnace 5, and an air exhaust pipe 7 for discharging air in the vacuum furnace 5 to the outside and increasing the degree of vacuum in the vacuum furnace 5. . Next, the air in the vacuum furnace 5 is discharged to the outside through the air exhaust pipe 7,
The degree of vacuum in the vacuum furnace 5 was set to 5 × 10 −3 Pa, and the inside of the vacuum furnace was made almost non-oxidizing atmosphere. This degree of vacuum is a degree of vacuum that does not evaporate even when the brazing material particles are melted in a later step. Next, while maintaining the degree of vacuum, the clad plate forming material 4 is used together with the brazing material outflow prevention frame 1 by using a pair of heaters 6 and 6.
Heat. As shown in FIG.
The temperature is raised to 50 ° C. and heating at 950 ° C. is continued for 10 minutes (reference A). Next, the temperature is raised to 1170 ° C. over 30 minutes, and heating at 1170 ° C. is continued for 20 minutes (reference B). Thereafter, it is cooled for 4 hours. As a result, the brazing material particles are solidified after being melted, and the wear-resistant particles are connected to the base metal plate, so that the base metal layer 12 having a thickness of 9 mm as shown in FIG.
And a wear-resistant clad plate 14 in which a wear-resistant layer 13 having a thickness of 2.5 mm is laminated. When the wear-resistant clad plate 14 is manufactured as in this example, the dimension of the wear-resistant clad plate in the surface direction can be increased to obtain a wear-resistant clad plate having a desired size.
【００１２】表１は、本実施の形態の方法で製造した耐
摩耗性クラッド板（実施例）と、比較例の方法で製造し
た耐摩耗性クラッド板とをＡＳＴＭ６５（米国摩耗試験
規格）により砂を用いて摩耗させ、摩耗により減少した
重量（摩耗重量）を測定した結果を示している。また、
表１には、耐摩耗層の耐摩耗性粒子上の表面硬度も併せ
て示している。Table 1 shows that the abrasion-resistant clad plate manufactured by the method of the present embodiment (Example) and the abrasion-resistant clad plate manufactured by the method of the comparative example were sanded according to ASTM65 (American abrasion test standard). 5 shows the result of measuring the weight (wear weight) reduced by abrasion using abrasion. Also,
Table 1 also shows the surface hardness of the wear-resistant layer on the wear-resistant particles.
【００１３】[0013]
【表１】 表１より、本実施の形態の方法で製造した耐摩耗性クラ
ッド板（実施例）は、摩耗重量が少なく、焼結材を接合
する方法で製造した従来の耐摩耗性クラッド板（比較例
１）とほぼ同量の摩耗重量であることが分かる。[Table 1] According to Table 1, the wear-resistant clad plate manufactured by the method of the present embodiment (Example) has a small wear weight, and the conventional wear-resistant clad plate manufactured by the method of joining sintered materials (Comparative Example 1). It can be seen that the wear weight is almost the same as that of ()).
【００１４】なお、上記例では、ロウ材として粒子状の
ロウ材粒子を用い、耐摩耗性粒子とロウ材粒子とが混合
された混合粒子材料により耐摩耗層形成材料を形成した
が、ロウ材は、シート状、ペースト状の種々の形状のも
のを用いることができる。ロウ材としてシート状のロウ
材シートを用いる場合は、ロウ材シート上に耐摩耗性粒
子を配置して耐摩耗層形成材料を形成すればよい。ロウ
材としてペースト状のロウ材ペーストを用いる場合は、
ロウ材ペースト上に耐摩耗性粒子を配置するか、ロウ材
ペーストと耐摩耗性粒子とを混合して耐摩耗層形成材料
を形成すればよい。In the above-described example, the brazing filler metal particles are used as the brazing filler metal, and the wear-resistant layer forming material is formed from a mixed particle material in which the wear-resistant particles and the brazing filler particles are mixed. Can be used in various shapes such as sheet and paste. When a sheet-shaped brazing material sheet is used as the brazing material, abrasion-resistant particles may be arranged on the brazing material sheet to form a material for forming a wear-resistant layer. When using a paste brazing material paste as the brazing material,
The wear-resistant layer forming material may be formed by disposing the wear-resistant particles on the brazing material paste or by mixing the brazing-material paste and the wear-resistant particles.
【００１５】また、上記例では、クラッド板形成材料を
真空炉内で加熱することにより、クラッド板形成材料を
無酸化雰囲気中で加熱したが、クラッド板形成材料を不
活性ガス，窒素，水素等の非酸化ガス雰囲気中で加熱す
ることにより、クラッド板形成材料を無酸化雰囲気中で
加熱しても構わない。In the above example, the clad plate forming material is heated in a non-oxidizing atmosphere by heating the clad plate forming material in a vacuum furnace, but the clad plate forming material is heated in an inert gas, nitrogen, hydrogen or the like. By heating in a non-oxidizing gas atmosphere, the clad plate forming material may be heated in a non-oxidizing atmosphere.
【００１６】[0016]
【発明の効果】本発明によれば、クラッド板形成材料を
無酸化雰囲気中で加熱してロウ材粒子を溶融してから冷
却するので、耐摩耗性粒子及びロウ材粒子が酸化される
ことなく、耐摩耗性粒子と母材金属とを接合して耐摩耗
性クラッド板を製造することができる。そのため、従来
のように耐摩耗性粒子の焼結板と母材金属板とをロウ材
で接合する製造方法に比べて製造が容易になり、量産化
を図りやすい。また、従来のように焼結板を用いずに製
造するので、耐摩耗性クラッド板の面方向の寸法を大き
くして所望の大きさの耐摩耗性クラッド板を得ることが
できる。そのため、耐摩耗性クラッド板をシュート等に
固定する際に耐摩耗性クラッド板の必要な枚数が少なく
て済み、耐摩耗性クラッド板の固定の作業が容易にな
る。According to the present invention, since the clad plate forming material is heated in a non-oxidizing atmosphere to melt the brazing material particles and then cool, the wear-resistant particles and the brazing material particles are not oxidized. By joining the wear-resistant particles and the base metal, a wear-resistant clad plate can be manufactured. Therefore, as compared with a conventional manufacturing method in which a sintered plate of wear-resistant particles and a base metal plate are joined with a brazing material, the manufacturing is facilitated, and mass production is facilitated. In addition, since it is manufactured without using a sintered plate as in the related art, it is possible to obtain a wear-resistant clad plate having a desired size by increasing the dimension in the surface direction of the wear-resistant clad plate. Therefore, when the wear-resistant clad plate is fixed to the chute or the like, the required number of wear-resistant clad plates can be reduced, and the work of fixing the wear-resistant clad plate becomes easy.
【図１】本発明の実施の形態の製造方法に用いるロウ材
流出防止枠及びクラッド板形成材料の断面図である。FIG. 1 is a cross-sectional view of a brazing material outflow prevention frame and a clad plate forming material used in a manufacturing method according to an embodiment of the present invention.
【図２】本発明の実施の形態の製造方法に用いるロウ材
流出防止枠及びクラッド板形成材料を内部に配置した真
空炉の断面図である。FIG. 2 is a sectional view of a vacuum furnace in which a brazing material outflow prevention frame and a clad plate forming material used in the manufacturing method according to the embodiment of the present invention are arranged.
【図３】本発明の実施の形態の製造方法において、クラ
ッド板形成材料を加熱する時間と温度との関係を示す図
である。FIG. 3 is a diagram showing a relationship between time and temperature for heating a clad plate forming material in the manufacturing method according to the embodiment of the present invention.
【図４】本発明の実施の形態の方法で製造した耐摩耗性
クラッド板の斜視図である。FIG. 4 is a perspective view of a wear-resistant clad plate manufactured by the method according to the embodiment of the present invention.
１ ロウ材流出防止枠 ２ 母材金属板 ３ 混合粒子材料（耐摩耗層形成材料） ４ クラッド板形成材料 ５ 真空炉 １２ 母材金属層 １３ 耐摩耗層 １４ 耐摩耗性クラッド板 DESCRIPTION OF SYMBOLS 1 Brazing material outflow prevention frame 2 Base metal plate 3 Mixed particle material (material for forming wear-resistant layer) 4 Cladding plate forming material 5 Vacuum furnace 12 Base metal layer 13 Wear-resistant layer 14 Wear-resistant clad plate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 岩本 學 東京都足立区西伊興３丁目３番９号 イワ モト技研工業内 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Manabu Iwamoto 3-3-9 Nishi-Iko, Adachi-ku, Tokyo Inside Iwamoto Giken Kogyo
Claims (8)
性クラッド板の製造方法において、 前記母材金属層を構成する母材金属板と、耐摩耗性粒子
と前記耐摩耗性粒子及び前記母材金属板より低融点のロ
ウ材とを含む耐摩耗層形成材料とを重ねた状態のクラッ
ド板形成材料を作り、 前記クラッド板形成材料を無酸化雰囲気中で加熱して前
記ロウ材を溶融してから冷却して前記耐摩耗性クラッド
板を製造することを特徴とする耐摩耗性クラッド板の製
造方法。1. A method of manufacturing a wear-resistant clad plate having a wear-resistant layer and a base metal layer, the base metal plate constituting the base metal layer, the wear-resistant particles, and the wear-resistant particles. And forming a clad plate forming material in a state where a wear-resistant layer forming material including a brazing material having a lower melting point than the base metal plate is formed, and heating the clad plate forming material in a non-oxidizing atmosphere to form the brazing material A method for producing a wear-resistant clad plate, wherein the method comprises the steps of:
なり、 前記耐摩耗層形成材料は、前記耐摩耗性粒子と前記ロウ
材粒子とが混合された混合粒子材料からなることを特徴
とする請求項１に記載の耐摩耗性クラッド板の製造方
法。2. The brazing material comprises particulate brazing material particles, and the wear-resistant layer forming material comprises a mixed particle material in which the wear-resistant particles and the brazing material particles are mixed. The method for producing a wear-resistant clad plate according to claim 1.
記ロウ材粒子が溶融しても実質的に蒸発しない真空度で
加熱することを特徴とする請求項２に記載の耐摩耗性ク
ラッド板の製造方法。3. The wear-resistant clad plate according to claim 2, wherein the clad plate forming material is heated in a vacuum furnace at a degree of vacuum at which the brazing material particles do not substantially evaporate even when the brazing material particles are melted. Manufacturing method.
とするロウ材粒子を用い、 前記クラッド板形成材料を１０２〜１０−４Ｐａの真空
度中において、９４０〜１１８０℃の温度で２０〜４０
分加熱することを特徴とする請求項３に記載の耐摩耗性
クラッド板の製造方法。4. A brazing material particle containing nickel as a main component as the brazing material particle, and the cladding plate forming material is heated at a temperature of 940 to 1180 ° C. in a vacuum of 10 2 to 10 −4 Pa for 20 to 1180 ° C. 40
The method for producing a wear-resistant clad plate according to claim 3, wherein the heating is performed for a minute.
囲気中で加熱することを特徴とする請求項１または２に
記載の耐摩耗性クラッド板の製造方法。5. The method for manufacturing a wear-resistant clad plate according to claim 1, wherein the clad plate forming material is heated in a non-oxidizing gas atmosphere.
ーティングしたタングステンカーバイド粒子を用いるこ
とを特徴とする請求項１または２に記載の耐摩耗性クラ
ッド板の製造方法。6. The method for manufacturing a wear-resistant clad plate according to claim 1, wherein tungsten carbide particles coated with cobalt are used as the wear-resistant particles.
性クラッド板の製造方法において、 一面に開口部を有する箱型のロウ材流出防止枠内に、前
記母材金属層を構成する炭素鋼からなる母材金属板と、
コバルトをコーティングしたタングステンカーバイド粒
子からなる耐摩耗性粒子とニッケルを主成分とするロウ
材粒子とを混合した混合粒子材料からなる耐摩耗層形成
材料を重ねた状態でクラッド板形成材料を作り、 前記ロウ材流出防止枠と一緒に前記クラッド板形成材料
を真空炉内で１０２〜１０−４Ｐａの真空度中におい
て、９４０〜１１８０℃の温度で２０〜４０分加熱して
前記ロウ材粒子を溶融してから冷却して前記耐摩耗性ク
ラッド板を製造することを特徴とする耐摩耗性クラッド
板の製造方法。7. A method for manufacturing a wear-resistant clad plate having a wear-resistant layer and a base metal layer, wherein the base metal layer is formed in a box-shaped brazing material outflow prevention frame having an opening on one surface. A base metal plate made of carbon steel
A clad plate forming material is formed in a state in which a wear resistant layer forming material composed of a mixed particle material obtained by mixing abrasion resistant particles composed of tungsten carbide particles coated with cobalt and brazing material particles containing nickel as a main component is stacked, The clad plate forming material is heated together with a brazing material outflow prevention frame at a temperature of 940 to 1180 ° C. for 20 to 40 minutes in a vacuum furnace at a degree of vacuum of 10 2 to 10 −4 Pa to reduce the brazing material particles. A method for producing a wear-resistant clad plate, which comprises melting and then cooling to produce the wear-resistant clad plate.
性クラッド板において、 前記耐摩耗層は、耐摩耗性粒子どうしがロウ材で結合さ
れて形成されており、 前記耐摩耗層と前記母材金属層とが前記ロウ材で結合さ
れている耐摩耗性クラッド板。8. A wear-resistant clad plate having a wear-resistant layer and a base metal layer, wherein the wear-resistant layer is formed by bonding wear-resistant particles together with a brazing material. A wear-resistant clad plate wherein the base metal layer and the base metal layer are joined by the brazing material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000026266A JP2001212665A (en) | 2000-02-03 | 2000-02-03 | Manufacturing method for wear resistance clad plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000026266A JP2001212665A (en) | 2000-02-03 | 2000-02-03 | Manufacturing method for wear resistance clad plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001212665A true JP2001212665A (en) | 2001-08-07 |
Family
ID=18552023
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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| Country | Link |
|---|---|
| JP (1) | JP2001212665A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2414953A (en) * | 2004-06-09 | 2005-12-14 | Gen Electric | Methods and apparatus for fabricating gas turbine engines |
-
2000
- 2000-02-03 JP JP2000026266A patent/JP2001212665A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2414953A (en) * | 2004-06-09 | 2005-12-14 | Gen Electric | Methods and apparatus for fabricating gas turbine engines |
| US7360991B2 (en) | 2004-06-09 | 2008-04-22 | General Electric Company | Methods and apparatus for fabricating gas turbine engines |
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