JPH11320124A - Wear-resistant liner and method of manufacturing the same - Google Patents
Wear-resistant liner and method of manufacturing the sameInfo
- Publication number
- JPH11320124A JPH11320124A JP14659198A JP14659198A JPH11320124A JP H11320124 A JPH11320124 A JP H11320124A JP 14659198 A JP14659198 A JP 14659198A JP 14659198 A JP14659198 A JP 14659198A JP H11320124 A JPH11320124 A JP H11320124A
- Authority
- JP
- Japan
- Prior art keywords
- wear
- plate
- resistant
- resistant liner
- welding
- 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
Links
Landscapes
- Chutes (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、硬質原料を搬送、
移動させるシュート、破砕機等の耐摩耗性を必要とする
箇所にライニングされる耐摩耗ライナー及びその製造方
法に関する。[0001] The present invention relates to a method for conveying hard raw materials,
The present invention relates to a wear-resistant liner lined at a place requiring wear resistance, such as a moving chute and a crusher, and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】従来、硬質原料を搬送、移動させるシュ
ート、破砕機、ダスト輸送管等の耐摩耗性を必要とする
箇所にライニングされる耐摩耗ライナー５０として、図
６に示す特開平９−１４１４４２号公報に記載されてい
る形態のものが知られている。耐摩耗ライナー５０にお
いては、耐磨耗性に優れた材料からなるセラミックスピ
ース本体５１に上拡径部５２を有する貫通孔５３が形成
され、上拡径部５２に超硬（タングステンカーバイト及
びタングステンカーバイト系の合金等からなる）又は通
電性セラミックス等からなって上部が平面となった円板
状の耐摩耗性導電材５４が固定配置されると共に、貫通
孔５３に下側から、下端に溶接用突起５５を有し、しか
も挿入状態で溶接用突起５５がセラミックスピース本体
５１から下方に突出する金属体５６（普通鋼、ステンレ
ス鋼等からなる）が挿入配置され、耐摩耗性導電材５４
と金属体５６とが電気的に接合されている。ここで、耐
摩耗性導電材５４と金属体５６との接合、及びセラミッ
クスピース本体５１への耐摩耗性導電材５４及び金属体
５６の接合は、空気中、真空中又は不活性ガス中で鑞付
けによって行われている。また、耐摩耗ライナー５０を
取付対象物である金属母材５７に取付けるためには、コ
ンデンサー又はアークスタッド溶接機を使用し、耐摩耗
性導電材５４を介して溶接用突起５５に大きな溶接電流
を流して、溶解させてアークを発生させて金属母材５７
に接合している。2. Description of the Related Art Conventionally, as a wear-resistant liner 50 lined at a place requiring wear resistance, such as a chute, a crusher, and a dust transport pipe for conveying and moving a hard raw material, FIG. The one described in JP-A-141442 is known. In the wear-resistant liner 50, a through-hole 53 having an upper enlarged-diameter portion 52 is formed in a ceramic piece main body 51 made of a material having excellent wear resistance. A disc-shaped abrasion-resistant conductive material 54 made of a carbide-based alloy or the like or made of a conductive ceramic or the like and having a flat upper surface is fixedly arranged. A metal body 56 (made of ordinary steel, stainless steel, or the like) having a welding projection 55 in which the welding projection 55 projects downward from the ceramic piece main body 51 in the inserted state is inserted and arranged.
And the metal body 56 are electrically connected. Here, the joining of the wear-resistant conductive material 54 and the metal body 56 and the joining of the wear-resistant conductive material 54 and the metal body 56 to the ceramic piece main body 51 are performed in air, vacuum, or an inert gas. It is done by attaching. Further, in order to attach the wear-resistant liner 50 to the metal base material 57 to be attached, a condenser or an arc stud welding machine is used, and a large welding current is applied to the welding projection 55 via the wear-resistant conductive material 54. The metal base material 57 is flowed and melted to generate an arc.
Is joined to.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来例
に係る耐摩耗ライナー５０においては、解決すべき以下
の問題があった。セラミックスピース本体５１、耐摩耗
性導電材５４及び金属体５６それぞれの接合は鑞付けで
あるため、厳しい使用条件では剥離が生じ、その結果寿
命の低下を招くという問題があった。また、セラミック
スピース本体５１と耐摩耗性導電材５４とが別ピースと
なっているので、摩耗の進行が不均一となり、偏摩耗に
よって寿命がさらに短かくなるという問題もあった。さ
らに、形状が複雑なため、機械加工及び製造に手間を要
するという問題もあった。However, the wear-resistant liner 50 according to the conventional example has the following problems to be solved. Since the joining of the ceramic piece body 51, the wear-resistant conductive material 54, and the metal body 56 is performed by brazing, there is a problem that peeling occurs under severe use conditions, resulting in a reduction in life. Further, since the ceramic piece main body 51 and the wear-resistant conductive material 54 are separate pieces, the progress of wear becomes uneven, and there is a problem that the life is further shortened due to uneven wear. Further, there is also a problem that complicated processing requires time and labor for machining and manufacturing.
【０００４】本発明はこのような事情に鑑みてなされた
もので、均一に摩耗が進行すると共に、厳しい使用条件
の下でも寿命が長く、また機械加工の容易な耐摩耗ライ
ナー及びその製造方法を提供することを目的とする。The present invention has been made in view of such circumstances, and provides a wear-resistant liner and a method of manufacturing the wear-resistant liner, which have uniform wear, have a long life even under severe use conditions, and are easy to machine. The purpose is to provide.
【０００５】[0005]
【課題を解決するための手段】前記目的に沿う請求項１
記載の耐摩耗ライナーは、摩耗面を構成する超硬合金か
らなる超硬耐摩耗板と、応力緩和材となるインサート板
と、取付対象物に溶接される溶接本体とが順次積層状態
で拡散接合により固着されている。ここで超硬合金と
は、元素周期表IVａ、Ｖａ、VIａ族の金属の炭化物粉末
をＦｅ、Ｃｏ、Ｎｉの鉄族金属で焼結したものであり、
セラミックスである金属炭化物と金属からなるサーメッ
トに属するものも含め、総称していう。超硬合金は大別
して、ＷＣ−Ｃｏ系と、ＷＣ−ＴｉＣ−Ｔａ（Ｎｂ）Ｃ
−Ｃｏ系の２種があり、Ｃｏ量、ＴｉＣ量、Ｔａ（Ｎ
ｂ）量、Ｃ量、炭化物粒度等を調節することにより物性
を変化させることができる。ＷＣ−Ｃｏ合金は鋳鉄や非
鉄金属用切削工具、各種ダイス、プラグ、ロール、破砕
用ロール等の耐摩耗工具、さく岩機用ビット等の鉱山工
具、超高圧発生用部品等として用いられ、ＷＣ−ＴｉＣ
−Ｔａ（Ｎｂ）Ｃ−Ｃｏ合金は主として鋼切削用工具に
用いられている。According to the present invention, there is provided a semiconductor device comprising:
The wear-resistant liner described is a cemented wear-resistant plate made of a cemented carbide constituting a wear surface, an insert plate serving as a stress relieving material, and a welded body to be welded to an object to be mounted being diffusion-bonded in a laminated state. Is fixed. Here, the cemented carbide is obtained by sintering a carbide powder of a metal belonging to Group IVa, Va, or VIa of the periodic table with an iron group metal such as Fe, Co, and Ni.
It is a generic term that also includes those belonging to cermets composed of metal carbide and metal as ceramics. Cemented carbides are roughly classified into WC-Co type and WC-TiC-Ta (Nb) C
-Co type, Co amount, TiC amount, Ta (N
b) The physical properties can be changed by adjusting the amount, C amount, carbide particle size and the like. WC-Co alloys are used as cutting tools for cast iron and non-ferrous metals, wear-resistant tools such as dies, plugs, rolls, crushing rolls, mining tools such as rock drill bits, parts for generating ultra-high pressure, etc. -TiC
-Ta (Nb) C-Co alloy is mainly used for steel cutting tools.
【０００６】応力緩和材となるインサート板は、伸びが
小さく靭性の小さい超硬耐摩耗板と溶接本体との間にあ
って、超硬耐摩耗板に加わる衝撃力、温度変化等に伴う
両者の膨張収縮の差を吸収緩和する働きを有しており、
高靭性で延性の大きい金属、例えば銅、アルミニウム、
亜鉛、錫、鉛あるいはこれらの合金等を用いることがで
きる。インサート板として銅板を使用する場合には、銅
板の酸素含有量が１００ｐｐｍを超えると、超硬合金と
銅板との接合界面にＣｏ2 ＷＯ4 、Ｃｕ2 Ｏ、ＣｕＯ、
Ｃｕ3 Ｏ4 等の酸化物が生成することにより接合強度が
低下するので、酸素含有量が１００ｐｐｍ以下の無酸素
銅板を使用することが望ましい。[0006] The insert plate serving as a stress relaxation material is located between the cemented wear-resistant plate having a small elongation and small toughness and the welded body, and the expansion and contraction of both due to the impact force applied to the cemented wear-resistant plate and a temperature change. Has the function of absorbing and reducing the difference between
High toughness and high ductility metal such as copper, aluminum,
Zinc, tin, lead, or an alloy thereof can be used. When a copper plate is used as the insert plate, if the oxygen content of the copper plate exceeds 100 ppm, Co 2 WO 4 , Cu 2 O, CuO,
Since the formation of oxides such as Cu 3 O 4 lowers the bonding strength, it is desirable to use an oxygen-free copper plate having an oxygen content of 100 ppm or less.
【０００７】請求項２記載の耐摩耗ライナーは、請求項
１記載の耐摩耗ライナーにおいて、前記溶接本体の裏面
側にはスタッド用突起が形成されている。請求項３記載
の耐摩耗ライナーは、請求項１又は２記載の耐摩耗ライ
ナーにおいて、前記超硬耐摩耗板の厚みに対して、前記
インサート板の厚みが０．２〜０．５倍である。超硬耐
摩耗板の厚みに対してインサート板の厚みが０．２倍よ
り少ないとインサート板による応力緩和効果が減退する
ので好ましくない、逆に０．５倍を超えると、全体厚み
が必要以上に増加する他、全体強度を低下させる。請求
項４記載の耐摩耗ライナーは、請求項１〜３のいずれか
１項に記載の耐摩耗ライナーにおいて、該耐摩耗ライナ
ーの側面の全部と下面の周辺部とに絶縁物を設けてい
る。[0007] A wear-resistant liner according to a second aspect is the wear-resistant liner according to the first aspect, wherein a stud projection is formed on the back surface side of the welding main body. A wear-resistant liner according to claim 3 is the wear-resistant liner according to claim 1 or 2, wherein the thickness of the insert plate is 0.2 to 0.5 times the thickness of the carbide wear-resistant plate. . If the thickness of the insert plate is less than 0.2 times the thickness of the carbide wear-resistant plate, the stress relaxation effect of the insert plate is undesirably reduced. Conversely, if the thickness exceeds 0.5 times, the overall thickness is more than necessary. In addition to reducing the overall strength. A wear-resistant liner according to a fourth aspect of the present invention is the wear-resistant liner according to any one of the first to third aspects, wherein an insulator is provided on all of the side surfaces and the periphery of the lower surface of the wear-resistant liner.
【０００８】請求項５記載の耐摩耗ライナーの製造方法
は、超硬合金からなる超硬耐摩耗板と、応力緩和材とな
るインサート板と、溶接本体とを順次積層して、真空状
態又は不活性ガス雰囲気で拡散接合する。請求項６記載
の耐摩耗ライナーの製造方法は、請求項５記載の耐摩耗
ライナーの製造方法において、前記インサート板は、酸
素含有量が１００ｐｐｍ以下の無酸素銅板である。請求
項７記載の耐摩耗ライナーの製造方法は、請求項５又は
６記載の耐摩耗ライナーの製造方法において、前記拡散
接合は、雰囲気圧力が３０Ｐａ以下、加熱温度８００〜
１０００℃、接合時間２０〜９０分、接合圧力０．１〜
２０ＭＰａの範囲で行う。According to a fifth aspect of the present invention, there is provided a method for manufacturing a wear-resistant liner, wherein a cemented wear-resistant plate made of a cemented carbide, an insert plate serving as a stress relieving material, and a welding body are sequentially laminated to form a vacuum state or a non-vacuum state. Diffusion bonding is performed in an active gas atmosphere. According to a sixth aspect of the present invention, in the method for producing a wear-resistant liner according to the fifth aspect, the insert plate is an oxygen-free copper plate having an oxygen content of 100 ppm or less. The method for manufacturing a wear-resistant liner according to claim 7 is the method for manufacturing a wear-resistant liner according to claim 5 or 6, wherein the diffusion bonding has an atmospheric pressure of 30 Pa or less and a heating temperature of 800 to 800 Pa.
1000 ° C, bonding time 20-90 minutes, bonding pressure 0.1-
This is performed in a range of 20 MPa.
【０００９】拡散接合における雰囲気圧力（真空度）は
３０Ｐａ以下、望ましくは１５Ｐａ以下とするのがよ
い。３０Ｐａを超えると接合界面の空隙が埋まらず接合
強度が低下するので、好ましくない。拡散接合時の加熱
温度は８００〜１０００℃の範囲、望ましくは８４０〜
９４０℃の範囲とする。加熱温度が８００℃より低下す
ると、超硬合金と銅板、銅板と溶接本体間の拡散接合が
充分に進行しないので、それぞれの接合界面から剥離す
る要因となる。一方、１０００℃を超えるとインサート
材としての銅板の銅成分が、超硬合金に拡散しすぎて超
硬合金の強度が低下して、超硬合金の一部から破壊が生
じる。接合時間（保持時間）は２０〜９０分がよく、望
ましくは５０〜７０分がよい。接合時間が２０分より短
いと充分な接合強度が得られず、９０分より長くする
と、接合界面に互いの分子が移動しすぎて、被接合材本
来の材料強度が低下するからである。接合圧力（＝接合
荷重／接合面積）は０．１〜２０ＭＰａの範囲がよく、
望ましくは、５〜１５ＭＰａがよい。０．１ＭＰａより
小さいと充分な接合強度が得られず、２０ＭＰａより大
きいとインサート板である銅板や鉄板が変形し易くなる
と共に、設備にかかる負荷が増大するので好ましくな
い。The atmospheric pressure (degree of vacuum) in the diffusion bonding is 30 Pa or less, preferably 15 Pa or less. If it exceeds 30 Pa, the voids at the bonding interface will not be filled and the bonding strength will decrease, which is not preferable. The heating temperature at the time of diffusion bonding is in the range of 800 to 1000 ° C, preferably 840 to 1000 ° C.
The temperature is in the range of 940 ° C. If the heating temperature is lower than 800 ° C., diffusion bonding between the cemented carbide and the copper plate, or between the copper plate and the welding body, does not sufficiently proceed, which causes separation from the respective bonding interfaces. On the other hand, when the temperature exceeds 1000 ° C., the copper component of the copper plate as the insert material is excessively diffused into the cemented carbide, so that the strength of the cemented carbide is reduced and a part of the cemented carbide is broken. The bonding time (holding time) is preferably 20 to 90 minutes, and more preferably 50 to 70 minutes. If the bonding time is shorter than 20 minutes, sufficient bonding strength cannot be obtained, and if the bonding time is longer than 90 minutes, molecules of each other move excessively to the bonding interface, and the original material strength of the material to be bonded is reduced. The joining pressure (= joining load / joining area) is preferably in the range of 0.1 to 20 MPa,
Desirably, the pressure is 5 to 15 MPa. If it is less than 0.1 MPa, sufficient joining strength cannot be obtained, and if it is more than 20 MPa, the copper plate or the iron plate as an insert plate is likely to be deformed, and the load on the equipment is undesirably increased.
【００１０】以上のように、本発明の耐摩耗ライナー
は、超硬耐摩耗板、インサート板、溶接本体とを順に接
合したものであるので、全体をコンパクトな耐摩耗部品
とすることが可能である。また、超硬耐摩耗板と溶接本
体間にインサート板を挟んで、真空状態又は不活性ガス
雰囲気で拡散接合を行うと、インサート板である銅板と
超硬耐摩耗板、銅板と溶接本体との接合界面で原子の拡
散が生じて一体化した強固な接合とすることができる。
さらに、インサート板を拡散接合した部分は、従来のＡ
ｇ基ろう材を用いて接合した場合に較べて接合強度を格
段に強くでき、衝撃荷重や変形で超硬合金が剥離しにく
くなり、長寿命化を達成できる。As described above, the wear-resistant liner of the present invention is formed by joining a cemented wear-resistant plate, an insert plate, and a welding body in this order, so that the entire wear-resistant part can be made a compact wear-resistant part. is there. Also, when the insert plate is sandwiched between the carbide wear-resistant plate and the welding body and diffusion bonding is performed in a vacuum state or an inert gas atmosphere, the copper plate and the carbide wear-resistant plate, which are the insert plates, and the copper plate and the welding body are welded. Diffusion of atoms occurs at the bonding interface to form an integrated strong bonding.
Furthermore, the part where the insert plate is diffusion-bonded is the conventional A
The joining strength can be remarkably increased as compared with the case of joining using a g-base brazing material, and the cemented carbide is less likely to peel off due to impact load or deformation, and a longer life can be achieved.
【００１１】[0011]
【発明の実施の形態】続いて、添付した図面を参照しつ
つ、本発明を具体化した実施の形態につき説明し、本発
明の理解に供する。図１は本発明の一実施の形態に係る
耐摩耗ライナーの断面図、図２は同耐摩耗ライナーの斜
視図、図３は同耐摩耗ライナーの変形例の断面図、図４
は同耐摩耗ライナーの変形例の断面図、図５は同耐摩耗
ライナーの変形例の断面図である。本発明の一実施の形
態に係る耐摩耗ライナー１０は、図１及び図２に示すよ
うに、摩耗面を構成しタングステン−コバルト系超硬合
金からなる超硬耐摩耗板１１と、銅からなるインサート
板１２と、鉄鋼（ＳＳ鋼材）からなる溶接本体１３とが
順に積層されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. 1 is a sectional view of a wear-resistant liner according to an embodiment of the present invention, FIG. 2 is a perspective view of the wear-resistant liner, FIG. 3 is a sectional view of a modification of the wear-resistant liner, and FIG.
Is a sectional view of a modified example of the wear-resistant liner, and FIG. 5 is a sectional view of a modified example of the wear-resistant liner. As shown in FIGS. 1 and 2, a wear-resistant liner 10 according to an embodiment of the present invention includes a cemented wear-resistant plate 11 that constitutes a wear surface and is made of a tungsten-cobalt cemented carbide and copper. An insert plate 12 and a welding body 13 made of steel (SS steel) are sequentially laminated.
【００１２】超硬耐摩耗板１１は、タングステン（Ｗ）
及びコバルト（Ｃｏ）系の超硬合金からなり、表１に示
す化学組成（Ｗ：８２．９０ｗｔ％、Ｃｏ：６．７１ｗ
ｔ％、Ｃ：４．５７ｗｔ％等）を有する耐摩耗性材料で
あり、そのサイズは幅が５０ｍｍ、長さが５０ｍｍ、厚
みが５ｍｍに形成されている。これによって、耐摩耗ラ
イナー１０に耐摩耗性を付加することができる。なお、
ここに示したタングステン−コバルト系以外の超硬合金
を適用することもできる。タングステン−コバルト系超
硬合金（ＷＣ−Ｃｏ系合金）を使用する場合、タングス
テン含有量は７０〜９８ｗｔ％、コバルト含有量は２〜
３０ｗｔ％とするのが好ましい。タングステンが７０ｗ
ｔ％より低くなると、耐摩耗に必要な硬度が低下し、９
８ｗｔ％を超えると焼結に必要な結合材となるコバルト
の量が不足するため結合強度が低下する。一方コバルト
含有量が２ｗｔ％より少なくなると超硬合金の結合強度
が不足し、３０ｗｔ％を超えると必要な耐摩耗性を低下
させるので好ましくない。The carbide wear-resistant plate 11 is made of tungsten (W)
And a cemented carbide of a cobalt (Co) series, and the chemical composition shown in Table 1 (W: 82.90 wt%, Co: 6.71 w
t%, C: 4.57 wt%, etc.), and has a size of 50 mm in width, 50 mm in length, and 5 mm in thickness. Thereby, wear resistance can be added to the wear liner 10. In addition,
A cemented carbide other than the tungsten-cobalt-based alloy shown here can also be applied. When using a tungsten-cobalt cemented carbide (WC-Co alloy), the tungsten content is 70 to 98 wt%, and the cobalt content is 2 to
Preferably, it is 30 wt%. 70w of tungsten
If it is lower than 10%, the hardness required for wear resistance decreases,
If it exceeds 8% by weight, the amount of cobalt, which is a binder necessary for sintering, is insufficient, so that the bonding strength is reduced. On the other hand, if the cobalt content is less than 2 wt%, the bonding strength of the cemented carbide will be insufficient, and if it exceeds 30 wt%, the required wear resistance will be reduced, which is not preferable.
【００１３】[0013]
【表１】 [Table 1]
【００１４】インサート板１２は、酸素含有量が５〜１
０ｐｐｍの銅（無酸素銅ともいう）を素材とする、平面
サイズが超硬耐摩耗板１１と同じで、厚みが２ｍｍの銅
板からなる。このように酸素濃度を抑制することによっ
て、溶接本体１３と超硬耐摩耗板１１とをインサート板
１２を介して拡散接合する際に、酸化物の生成を阻止す
ることができる。また、インサート板１２を介在させる
ことにより使用中に両者間に働く応力を緩和し、温度変
動等に伴う温度分布を均一化する等、耐摩耗ライナー１
０にかかる衝撃力、熱膨張差、熱応力等の負荷を軽減す
ることができ、その耐用性を高めることができる。この
無酸素銅板の厚みは０．５〜３．０ｍｍ、望ましくは
１．０〜２．０ｍｍとする。０．５ｍｍより薄いと超硬
耐摩耗板１１と溶接本体１３間の緩衝作用が低下し、
３．０ｍｍより厚くなると拡散接合を行うときに無酸素
銅板が座屈し易くなると共に、無酸素銅板の変形量が大
きくなるために全体の寸法精度が低下する要因になるか
らである。The insert plate 12 has an oxygen content of 5-1.
It is made of a 2 mm thick copper plate made of 0 ppm copper (also referred to as oxygen-free copper) and having the same plane size as the carbide wear-resistant plate 11. By suppressing the oxygen concentration in this way, it is possible to prevent the formation of oxides when the welding body 13 and the cemented carbide wear-resistant plate 11 are diffusion-bonded via the insert plate 12. Further, by interposing the insert plate 12, the stress acting between the two during use is reduced, and the temperature distribution caused by temperature fluctuations and the like are made uniform, and the wear-resistant liner 1 is provided.
Loads such as impact force, thermal expansion difference, and thermal stress applied to zero can be reduced, and the durability thereof can be improved. The thickness of this oxygen-free copper plate is 0.5 to 3.0 mm, preferably 1.0 to 2.0 mm. If it is thinner than 0.5 mm, the buffering action between the carbide wear-resistant plate 11 and the welding body 13 is reduced,
If the thickness is more than 3.0 mm, the oxygen-free copper plate tends to buckle during diffusion bonding, and the amount of deformation of the oxygen-free copper plate increases, which causes a reduction in overall dimensional accuracy.
【００１５】溶接本体１３は、一般構造用圧延鋼材（Ｓ
Ｓ鋼材）よりなり、平面サイズがインサート板１２と同
じで、その非稼働面側（裏面側すなわち図１及び図２の
下方側）の中心部には、溶接本体１３を取付対象物の一
例である焼結鉱原料搬送用シュート本体１５に固定する
ための２段からなるスタッド用突起１６が形成されてお
り、スタッド用突起１６以外の厚みが９ｍｍのタイル状
部材である。なお、溶接本体１３には、前記ＳＳ鋼材の
他に、機械構造用炭素鋼材（Ｓ−Ｃ鋼材）等に加えて、
ステンレス鋼、合金鋼等を使用することもできる。スタ
ッド用突起１６は鋼板から削り出しすることもできる
し、又はプレス加工等で形成できる。なお、図１に示す
ように、耐摩耗ライナー１０の側面の全部及び下面の周
辺部には、塗料又は樹脂からなる絶縁物１７が設けられ
ている。コンデンサー又はアークスタッド溶接機を使用
して、耐摩耗ライナー１０を順々にシュート本体１５に
取付ける際、この絶縁物１７によって隣合う耐摩耗ライ
ナー１０同士又は耐摩耗ライナー１０の傾斜によるシュ
ート本体１５との導電を避けるようにしている。以上の
ような構成となるタイル状の耐摩耗ライナー１０を、破
砕機、硬質原料の搬送用シュート等の摩耗の大きい箇所
に多数ライニングすることにより、装置の耐久性を向上
させることができる。The welding body 13 is made of a rolled steel material (S
S), and has the same plane size as the insert plate 12, and a welding body 13 is an example of an object to be attached to a non-operating surface side (rear side, that is, a lower side in FIGS. 1 and 2). A two-stage stud projection 16 for fixing to a certain sinter ore raw material transfer chute main body 15 is formed, and is a tile-shaped member having a thickness of 9 mm other than the stud projection 16. In addition, in addition to the said SS steel material, in addition to the carbon steel material for machine structures (SC steel material) etc.
Stainless steel, alloy steel, etc. can also be used. The stud projection 16 can be cut out from a steel plate, or can be formed by press working or the like. As shown in FIG. 1, an insulator 17 made of a paint or a resin is provided on all of the side surfaces of the wear-resistant liner 10 and around the lower surface. When the wear-resistant liners 10 are sequentially attached to the chute main body 15 using a condenser or an arc stud welding machine, the insulator 17 causes the wear-resistant liners 10 adjacent to each other or the chute main body 15 due to the inclination of the wear-resistant liner 10 to contact each other. To avoid conduction. The durability of the apparatus can be improved by lining a large number of the wear-resistant liners 10 having the above-described configuration in places where the wear is large, such as a crusher and a chute for transporting hard raw materials.
【００１６】続いて、前記耐摩耗ライナー１０の製造方
法について詳細に説明する。まず、溶接本体１３となる
ＳＳ鋼材を所要形状及び所要表面粗さとなるように切
断、切削研磨、圧延加工等をした後、超硬耐摩耗板１１
との接着面に付着した錆等の酸化物被膜あるいは油脂膜
等の汚れを研磨処理、酸洗処理等により除去して清浄化
しておく。また、インサート板１２及び超硬耐摩耗板１
１についても、それぞれを所要寸法に加工し、さらにそ
れぞれの接着面を所要の表面粗さと平面度に仕上げる。
即ち、インサート板１２及び超硬耐摩耗板１１間の隙間
が、所定の例えば５μｍ以下になるように加工した後、
同様にそれぞれの接着面を清浄化処理しておく。このよ
うに清浄化処理を施しておくことにより、酸化被膜等の
ない接合面同士を接触させ、拡散接合に際して、最終的
な接合強度を高めることができる。次に、準備した前記
溶接本体１３の上に、インサート板１２及び超硬耐摩耗
板１１を順に積層させ、図示しない拡散接合処理装置を
用いて表２に示す拡散接合処理条件の下で加熱、加圧す
る。Next, a method of manufacturing the wear-resistant liner 10 will be described in detail. First, after cutting, cutting and polishing, rolling, etc., the SS steel material to be the welding body 13 to have a required shape and a required surface roughness, the carbide wear-resistant plate 11 is formed.
Dirt such as an oxide film or an oil film adhered to the surface to be bonded to the substrate is removed by polishing, pickling, or the like to be cleaned. Further, the insert plate 12 and the carbide wear-resistant plate 1
As for No. 1, each is processed to a required size, and each bonded surface is finished to a required surface roughness and flatness.
That is, after processing the gap between the insert plate 12 and the carbide wear-resistant plate 11 to a predetermined value, for example, 5 μm or less,
Similarly, each adhesion surface is cleaned. By performing the cleaning treatment in this manner, the bonding surfaces having no oxide film or the like can be brought into contact with each other, and the final bonding strength can be increased in diffusion bonding. Next, the insert plate 12 and the carbide wear-resistant plate 11 are sequentially laminated on the prepared welding main body 13 and heated under diffusion bonding processing conditions shown in Table 2 using a diffusion bonding processing apparatus (not shown). Apply pressure.
【００１７】[0017]
【表２】 [Table 2]
【００１８】ここで、前記拡散接合処理条件における雰
囲気圧力（真空度）、加熱温度、接合時間、接合圧力が
それぞれ、３０Ｐａ以下、８００〜１０００℃、２０〜
９０分、０．１〜２０ＭＰａの範囲となるようにする。
雰囲気圧力は拡散接合処理装置に設けられた真空ポンプ
によって制御することができ、本実施の形態では平均１
３Ｐａに維持した。なお、このような真空状態において
は、アルゴンガス等の不活性ガスを予め雰囲気ガスとし
て装入しておき、これを減圧した雰囲気中で拡散接合を
行わせることもでき、不活性ガス雰囲気中で行うことも
可能である。加熱温度は、耐摩耗ライナー１０を構成す
る溶接本体１３、インサート板１２及び超硬耐摩耗板１
１の積層体を保持する図示しない拡散接合処理装置内の
雰囲気温度であり、各層を拡散接合処理装置に装入して
各層の温度がほぼ均一となる状態に維持させる。そし
て、溶接本体１３と超硬耐摩耗板１１との面を挟むよう
に図示しない加圧装置を用いて加熱温度が９００℃とな
る状態で加圧し、接着面での接合圧力が１０ＭＰａとな
るように全体に荷重を負荷して、この接合時間を６０分
間保持させる。これによって、過度の塑性変形を伴うこ
となく相互に原子が拡散して、強固な接合組織を得るこ
とができる。Here, the atmospheric pressure (degree of vacuum), the heating temperature, the bonding time, and the bonding pressure under the above-mentioned diffusion bonding processing conditions are 30 Pa or less, 800 to 1000 ° C., and 20 to 20, respectively.
For 90 minutes, the pressure is adjusted to be in the range of 0.1 to 20 MPa.
Atmospheric pressure can be controlled by a vacuum pump provided in the diffusion bonding apparatus.
It was maintained at 3 Pa. Note that, in such a vacuum state, an inert gas such as an argon gas is charged in advance as an atmosphere gas, and diffusion bonding can be performed in a reduced-pressure atmosphere. It is also possible to do. The heating temperature depends on the welding main body 13, the insert plate 12, and the carbide wear-resistant plate 1 constituting the wear-resistant liner 10.
This is the ambient temperature in a diffusion bonding apparatus (not shown) that holds one of the stacked bodies, and each layer is charged into the diffusion bonding apparatus to maintain a state in which the temperature of each layer is substantially uniform. Then, pressure is applied by using a pressing device (not shown) at a heating temperature of 900 ° C. so as to sandwich the surface of the welding main body 13 and the carbide wear-resistant plate 11 so that the bonding pressure at the bonding surface becomes 10 MPa. , A load is applied to the whole, and the bonding time is maintained for 60 minutes. As a result, atoms are diffused with each other without excessive plastic deformation, and a strong joint structure can be obtained.
【００１９】以上のような条件で製作して得られた耐摩
耗ライナー１０における、超硬合金と銅間の接合強度は
２５０ＭＰａであり、銅とＳＳ鋼材間の接合強度は２０
０ＭＰａであった。そして、このようにして得られたタ
イル状の耐摩耗ライナー１０を焼結塊を搬送するベルト
コンベヤのシュートに取付けたところ、従来例の耐摩耗
ライナー５０（図６参照）では１ヶ月の寿命であったも
のが、１２ヶ月間にわたり使用できるようになった。In the wear-resistant liner 10 manufactured under the above conditions, the joining strength between the cemented carbide and the copper is 250 MPa, and the joining strength between the copper and the SS steel is 20.
It was 0 MPa. Then, the tile-shaped wear-resistant liner 10 thus obtained was attached to a chute of a belt conveyor that conveys the sintered mass, and the conventional wear-resistant liner 50 (see FIG. 6) had a one-month life. What has been available for 12 months.
【００２０】以上説明したように、本発明の一実施の形
態に係る耐摩耗ライナー１０は、超硬合金とＳＳ鋼材間
に銅板を挟んで、真空雰囲気中で拡散接合すると、銅板
と超硬合金、銅板とＳＳ鋼材のそれぞれの接合界面で原
子の拡散が生じ、一体化して強固に接合できる。耐摩耗
ライナー１０においては、従来例に比較して、摩耗面が
同一材であるので、均一に摩耗が進行し、その結果寿命
を長くすることができる。また、超硬合金と銅又は銅と
ＳＳ鋼材との拡散接合による拡散接合強度（２００〜２
５０ＭＰａ）は、Ａｇ基ろう材を用いて接合した超硬合
金と銅又は銅とＳＳ鋼材とのろう付け接合強度（１０〜
５０ＭＰａ）に較べて格段に大きくなり、しかもインサ
ート板を介在させることによって全体の靭性を大きくで
きるので、衝撃的な荷重や変形が耐摩耗ライナー１０に
生じても超硬合金が剥離しにくく、設備の長寿命化を達
成できる。さらに、従来例の耐摩耗ライナー５０の構成
に比べて簡単であるので、機械加工を極めて容易なもの
とすることができる。As described above, the wear-resistant liner 10 according to one embodiment of the present invention is provided with a copper plate sandwiched between a cemented carbide and an SS steel material, and diffusion-bonded in a vacuum atmosphere. At the joining interface between the copper plate and the SS steel, diffusion of atoms occurs, and the joining can be performed integrally and firmly. Since the wear surface of the wear-resistant liner 10 is the same as that of the conventional example, the wear progresses uniformly, and as a result, the life can be extended. Also, the diffusion bonding strength (200 to 2) by diffusion bonding of cemented carbide and copper or copper and SS steel material.
50MPa) is the brazing joint strength (10 to 10) of the cemented carbide and copper or copper and SS steel material joined using the Ag-based brazing material.
50 MPa), and the overall toughness can be increased by interposing an insert plate. Therefore, even if an impact load or deformation occurs in the wear-resistant liner 10, the cemented carbide hardly peels off, Life can be extended. Further, since the configuration is simpler than the configuration of the wear-resistant liner 50 of the conventional example, machining can be made extremely easy.
【００２１】以上、本発明の実施の形態を説明したが、
本発明はこれらの実施の形態に限定されるものではな
く、要旨を逸脱しない条件の変更等は全て本発明の適用
範囲である。図３〜図５には、それぞれ耐摩耗ライナー
１０の変形例の断面図を示す。なお同一の構成要素につ
いては、同一の符号を付し、また類似の構成要素につい
ては同一の符号にアルファベットを添字として付して詳
しい説明を省略する。図３の耐摩耗ライナー２０におい
ては、溶接本体１３ａ下側が正四角錐台状として下端部
にスタッド用突起を形成している。図４の耐摩耗ライナ
ー３０は、耐摩耗ライナー２０において、インサート板
１２ａ及び溶接本体１３ｂの接合部を小さくした形態の
ものである。図５の耐摩耗ライナー４０は、耐摩耗ライ
ナー２０において、溶接本体１３ｃを小さくしてスタッ
ド用突起を形成した形態のものである。The embodiment of the present invention has been described above.
The present invention is not limited to these embodiments, and all changes in conditions without departing from the gist are within the scope of the present invention. 3 to 5 show sectional views of modified examples of the wear-resistant liner 10, respectively. Note that the same components are denoted by the same reference numerals, and similar components are denoted by the same reference numerals with an alphabetic suffix, and detailed description is omitted. In the wear-resistant liner 20 of FIG. 3, the lower side of the welding main body 13a has a truncated square pyramid shape, and a stud projection is formed at the lower end. The wear-resistant liner 30 in FIG. 4 is a form in which the joint between the insert plate 12a and the welding body 13b is reduced in the wear-resistant liner 20. The wear-resistant liner 40 of FIG. 5 is a form in which the welding main body 13c is made smaller to form a stud projection in the wear-resistant liner 20.
【００２２】本発明の実施の形態においては、コンデン
サー又はアークスタッド溶接機を使用して耐摩耗ライナ
ー１０を取付対象物にスタッド溶接する際に、耐摩耗ラ
イナー１０同士の導電を回避するために耐摩耗ライナー
１０にスタッド用突起１６及び絶縁物１７を設けたが、
必要に応じて（例えば、スタッド用突起１６を用いて取
付対象物にアーク溶接で溶接する場合には）設けないこ
ともある。即ち、溶接本体の形状は、超硬耐摩耗板１１
と同様に平板状にすることができ、例えば図３及び図４
において、インサート板を長辺とする断面が矩形の形状
とすることもできる。インサート板及び溶接本体の大き
さ、及び溶接本体の形状については、耐摩耗ライナーの
使用条件（温度、荷重、圧力等）や溶接方法（スタッド
溶接又はアーク溶接等）に応じて適宜選択することがで
きる。スタッド用突起１６を２段状としたが、これに限
定されず、１段又は３段以上とすることもできる。In the embodiment of the present invention, when the wear-resistant liner 10 is stud-welded to an object to be mounted by using a condenser or an arc stud welding machine, the wear-resistant liners 10 are prevented from conducting each other. Although the stud projection 16 and the insulator 17 are provided on the wear liner 10,
It may not be provided as necessary (for example, in the case where the stud projection 16 is used for arc welding to an object to be mounted). That is, the shape of the welding main body is the carbide wear-resistant plate 11.
3 and 4, for example.
In the above, the cross section having the long side as the insert plate may have a rectangular shape. The size of the insert plate and the welded body, and the shape of the welded body can be appropriately selected according to the use conditions (temperature, load, pressure, etc.) of the wear-resistant liner and the welding method (stud welding or arc welding, etc.). it can. Although the stud projection 16 has a two-step shape, the present invention is not limited to this. One or three or more steps may be used.
【００２３】[0023]
【発明の効果】請求項１〜４記載の耐摩耗ライナーにお
いては、超硬合金からなる超硬耐摩耗板と、応力緩和材
となるインサート板と、溶接本体とが順次積層状態で拡
散接合により固着されているので、インサート板によっ
て超硬耐摩耗板及び溶接本体間の応力を緩和して耐久性
を高めることが可能となるので、全体をコンパクトに構
成できる。特に、請求項２記載の耐摩耗ライナーにおい
ては、溶接本体の裏面側にはスタッド用突起が形成され
ているので、スタッド溶接法によるスタッド溶接作業が
容易となり、耐摩耗ライナーの交換時の作業性を向上で
きる。請求項３記載の耐摩耗ライナーにおいては、超硬
耐摩耗板の厚みに対して、インサート板の厚みが適正範
囲にあるので、インサート板による応力緩和効果を適正
に維持すると共に、全体厚みが必要以上に厚くなること
がないので耐摩耗ライナーをコンパクトに構成すること
ができる。請求項４記載の耐摩耗ライナーにおいては、
耐摩耗ライナーの側面の全部と下面の周辺部とに絶縁物
を設けているので、隣合う耐摩耗ライナー同士を接触さ
せてスタッド溶接ができる。The wear-resistant liner according to any one of claims 1 to 4, wherein the cemented wear-resistant plate made of a cemented carbide, the insert plate used as a stress relieving material, and the welded body are successively laminated by diffusion bonding. Since it is fixed, the stress between the cemented carbide wear-resistant plate and the welded body can be reduced by the insert plate, and the durability can be increased, so that the whole can be configured compact. In particular, in the wear-resistant liner according to the second aspect, since the stud projection is formed on the back surface side of the welding main body, the stud welding operation by the stud welding method is facilitated, and the workability at the time of replacing the wear-resistant liner. Can be improved. In the wear-resistant liner according to the third aspect, since the thickness of the insert plate is within an appropriate range with respect to the thickness of the carbide wear-resistant plate, the stress relaxation effect of the insert plate is appropriately maintained, and the entire thickness is required. Since it does not become thicker than above, the wear-resistant liner can be made compact. In the wear-resistant liner according to claim 4,
Since the insulating material is provided on all of the side surfaces of the wear-resistant liner and the peripheral portion of the lower surface, stud welding can be performed by contacting adjacent wear-resistant liners.
【００２４】請求項５〜７記載の耐摩耗ライナーの製造
方法においては、超硬合金からなる超硬耐摩耗板と、応
力緩和材となるインサート板と、溶接本体とを順次積層
して、真空状態又は不活性ガス雰囲気で拡散接合するの
で、各接合界面で原子の拡散が生じて一体化した強固な
接合組織とすることができる。この拡散接合された部分
は、従来のＡｇ基ろう材を用いたろう材接合に較べて接
合強度を格段に大きくでき、しかも、インサート板を介
在させることによって衝撃荷重や変形で超硬合金が剥離
しにくくなるので、衝撃力や荷重が加わり撓みが生じる
ような部品としての耐摩耗ライナーの長寿命化を達成で
きる。特に、請求項６記載の耐摩耗ライナーの製造方法
においては、インサート板は、酸素含有量が適正値以下
の無酸素銅板であるので、拡散接合処理の際に各接合面
で酸化物を生じることがなく所定の接合強度を維持する
ことができる。請求項７記載の耐摩耗ライナーの製造方
法においては、拡散接合は、適正な雰囲気圧力、加熱温
度、接合時間及び接合圧力の範囲で行うので、各接合面
における接合状態が最適に維持され、所定の接合強度を
有する耐摩耗ライナーが得られる。According to a fifth aspect of the present invention, there is provided a method for manufacturing a wear-resistant liner, wherein a cemented wear-resistant plate made of a cemented alloy, an insert plate serving as a stress relieving material, and a welding body are sequentially laminated to form a vacuum. Since the diffusion bonding is performed in a state or an inert gas atmosphere, atoms can be diffused at each bonding interface to form an integrated strong bonding structure. This diffusion-bonded portion can significantly increase the bonding strength as compared with the conventional brazing material using an Ag-based brazing material, and the cemented carbide is peeled off by an impact load or deformation by interposing an insert plate. Since it becomes difficult, it is possible to achieve a longer life of the wear-resistant liner as a component in which an impact force or a load is applied to cause bending. In particular, in the method for manufacturing a wear-resistant liner according to the sixth aspect, since the insert plate is an oxygen-free copper plate having an oxygen content equal to or less than an appropriate value, an oxide is generated at each bonding surface during diffusion bonding. The required bonding strength can be maintained without any problem. In the method for manufacturing a wear-resistant liner according to the seventh aspect, the diffusion bonding is performed within a range of an appropriate atmosphere pressure, a heating temperature, a bonding time, and a bonding pressure. Is obtained.
【図１】本発明の一実施の形態に係る耐摩耗ライナーの
断面図である。FIG. 1 is a sectional view of a wear-resistant liner according to an embodiment of the present invention.
【図２】同耐摩耗ライナーの斜視図である。FIG. 2 is a perspective view of the wear-resistant liner.
【図３】同耐摩耗ライナーの変形例の断面図である。FIG. 3 is a sectional view of a modified example of the wear-resistant liner.
【図４】同耐摩耗ライナーの変形例の断面図である。FIG. 4 is a sectional view of a modified example of the wear-resistant liner.
【図５】同耐摩耗ライナーの変形例の断面図である。FIG. 5 is a sectional view of a modified example of the wear-resistant liner.
【図６】従来例の耐摩耗ライナーの説明図である。FIG. 6 is an explanatory view of a conventional wear-resistant liner.
１０ 耐摩耗ライナー １１ 超硬耐摩
耗板 １２ インサート板 １２ａ インサ
ート板 １３ 溶接本体 １３ａ 溶接本
体 １３ｂ 溶接本体 １３ｃ 溶接本
体 １５ シュート本体（取付対象物） １６ スタッド
用突起 １７ 絶縁物 ２０ 耐摩耗ラ
イナー ３０ 耐摩耗ライナー ４０ 耐摩耗ラ
イナーDESCRIPTION OF SYMBOLS 10 Wear-resistant liner 11 Carbide wear-resistant plate 12 Insert plate 12a Insert plate 13 Welding body 13a Welding body 13b Welding body 13c Welding body 15 Chute body (mounting target) 16 Stud projection 17 Insulator 20 Wear-resistant liner 30 Wear-resistant Liner 40 Wear-resistant liner
Claims (7)
耐摩耗板と、応力緩和材となるインサート板と、取付対
象物に溶接される溶接本体とが順次積層状態で拡散接合
により固着されていることを特徴とする耐摩耗ライナ
ー。1. A cemented carbide wear-resistant plate comprising a cemented carbide constituting a wear surface, an insert plate serving as a stress relieving material, and a welding body to be welded to an object to be mounted are fixed by diffusion bonding in a laminated state. A wear-resistant liner characterized by being made.
起が形成されている請求項１記載の耐摩耗ライナー。2. The wear-resistant liner according to claim 1, wherein a stud projection is formed on a back surface side of the welding main body.
インサート板の厚みが０．２〜０．５倍である請求項１
又は２記載の耐摩耗ライナー。3. The thickness of the insert plate is 0.2 to 0.5 times the thickness of the carbide wear-resistant plate.
Or the wear-resistant liner according to 2.
周辺部とに絶縁物を設けた請求項１〜３のいずれか１項
に記載の耐摩耗ライナー。4. The wear-resistant liner according to claim 1, wherein an insulator is provided on all of the side surfaces and the peripheral portion of the lower surface of the wear-resistant liner.
緩和材となるインサート板と、溶接本体とを順次積層し
て、真空状態又は不活性ガス雰囲気で拡散接合すること
を特徴とする耐摩耗ライナーの製造方法。5. A cemented carbide wear-resistant plate made of a cemented carbide, an insert plate serving as a stress relieving material, and a welding body are sequentially laminated and diffusion-bonded in a vacuum state or an inert gas atmosphere. Method of producing a wear-resistant liner.
０ｐｐｍ以下の無酸素銅板である請求項５記載の耐摩耗
ライナーの製造方法。6. The insert plate having an oxygen content of 10%.
The method for producing a wear-resistant liner according to claim 5, which is an oxygen-free copper plate of 0 ppm or less.
以下、加熱温度８００〜１０００℃、接合時間２０〜９
０分、接合圧力０．１〜２０ＭＰａの範囲で行う請求項
５又は６記載の耐摩耗ライナーの製造方法。7. An atmosphere pressure of the diffusion bonding is 30 Pa.
Hereinafter, a heating temperature of 800 to 1000 ° C. and a bonding time of 20 to 9
7. The method for producing a wear-resistant liner according to claim 5, wherein the bonding is performed for 0 minutes at a bonding pressure of 0.1 to 20 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14659198A JP4159654B2 (en) | 1998-05-11 | 1998-05-11 | Manufacturing method of wear-resistant liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14659198A JP4159654B2 (en) | 1998-05-11 | 1998-05-11 | Manufacturing method of wear-resistant liner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11320124A true JPH11320124A (en) | 1999-11-24 |
| JP4159654B2 JP4159654B2 (en) | 2008-10-01 |
Family
ID=15411188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14659198A Expired - Fee Related JP4159654B2 (en) | 1998-05-11 | 1998-05-11 | Manufacturing method of wear-resistant liner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4159654B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100479486B1 (en) * | 2001-04-25 | 2005-03-31 | 주식회사 티엠시 | Improved bonding method of heterogeneous metals |
| AU2009101177B4 (en) * | 2009-11-17 | 2010-11-25 | Bradken Resources Pty Limited | Wear plate |
| JP2017149582A (en) * | 2016-02-25 | 2017-08-31 | ヘムロック・セミコンダクター・オペレーションズ・エルエルシー | Surface conditioning of conveyor material or contact surface |
| CN109781482A (en) * | 2018-12-24 | 2019-05-21 | 新兴铸管（浙江）铜业有限公司 | Continuous casting and rolling produces the copper bar method of production measurement of oxygen content sample |
| KR102330031B1 (en) * | 2020-12-29 | 2021-11-23 | 주식회사 케이이씨 | Appratus and installtion method for shute liner |
| JP2023058289A (en) * | 2021-10-13 | 2023-04-25 | 日本製鉄株式会社 | Abrasion resistant liner, abrasion resistant liner construct, and manufacturing method thereof |
-
1998
- 1998-05-11 JP JP14659198A patent/JP4159654B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100479486B1 (en) * | 2001-04-25 | 2005-03-31 | 주식회사 티엠시 | Improved bonding method of heterogeneous metals |
| AU2009101177B4 (en) * | 2009-11-17 | 2010-11-25 | Bradken Resources Pty Limited | Wear plate |
| AU2009101177C4 (en) * | 2009-11-17 | 2012-03-15 | Bradken Resources Pty Limited | Wear plate |
| JP2017149582A (en) * | 2016-02-25 | 2017-08-31 | ヘムロック・セミコンダクター・オペレーションズ・エルエルシー | Surface conditioning of conveyor material or contact surface |
| CN109781482A (en) * | 2018-12-24 | 2019-05-21 | 新兴铸管（浙江）铜业有限公司 | Continuous casting and rolling produces the copper bar method of production measurement of oxygen content sample |
| CN109781482B (en) * | 2018-12-24 | 2021-08-13 | 新兴铸管（浙江）铜业有限公司 | Method for manufacturing oxygen content detection sample for copper rod production by continuous casting and rolling |
| KR102330031B1 (en) * | 2020-12-29 | 2021-11-23 | 주식회사 케이이씨 | Appratus and installtion method for shute liner |
| JP2023058289A (en) * | 2021-10-13 | 2023-04-25 | 日本製鉄株式会社 | Abrasion resistant liner, abrasion resistant liner construct, and manufacturing method thereof |
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|---|---|
| JP4159654B2 (en) | 2008-10-01 |
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