发明名称 |
COPPER-BASED INSERT METAL FOR WELDING BETWEEN CEMENTED CARBIDE ALLOY CONTAINING COBALT AND STRUCTURAL STEEL AND METHOD FOR WELDING CEMENTED CARBIDE ALLOY AND STRUCTURAL STEEL BY USING THE SAME |
摘要 |
PURPOSE: A copper-based insert metal for welding between a cemented carbide alloy containing cobalt and a structural steel and method for welding the cemented carbide alloy and the structural steel by using the same are provided to effect reduction of stress and suppression of brittleness in a welding interface of a welded material which is formed by welding a cemented carbide alloy and a structural steel, to obtain a precise welded material, and to improve considerable bonding strength. CONSTITUTION: A copper-based insert metal for welding between a cemented carbide alloy containing cobalt and a structural steel and method for welding the cemented carbide alloy and the structural steel by using the same utilizes a copper thin plate in which zinc(Zn) and silicon(Si) are added by 5% or less and on which nickel(Ni) is plated with a prescribed thickness. The method is characterized in that a cemented carbide alloy containing 4 to 13% of cobalt and a structural steel are welded at temperature of 1000 to 1150deg.C for 10 to 60 minutes under vacuum or a certain inert gas (such as Ar gas or Ne gas) environment by using the insert metal, and then the welded material is cooled at 40deg.C/sec. or less or in an oil heated at a range between 100 and 800deg.C. When a cemented carbide alloy such as ceramic and a structural steel that is a ferrite-based metal are welded by using the copper-based insert metal, the welded material is formed precisely with a considerable bonding strength and can be made with low cost.
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申请公布号 |
KR20010019385(A) |
申请公布日期 |
2001.03.15 |
申请号 |
KR19990035745 |
申请日期 |
1999.08.26 |
申请人 |
HAN SUNG METALS CO., LTD.;JUNG, SEUNG BOO |
发明人 |
HONG, TAE HWAN;JUNG, SEUNG BOO;KIM, SANG HEON;KIM, YEONG JIK;SHIN, YEONG UI;YANG, HUN MO;YOO, CHEOL HO |
分类号 |
B23K20/16;(IPC1-7):B23K20/16 |
主分类号 |
B23K20/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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