| WH70高强钢采用高强度焊丝Q550常温下焊接试验 |
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| 引用本文： | 王秀海,王国法,徐亚军,吴战越,李彦平.WH70高强钢采用高强度焊丝Q550常温下焊接试验[J].煤矿机械,2003(4):23-25. |
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| 作者姓名： | 王秀海 王国法 徐亚军 吴战越 李彦平 |
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| 作者单位： | 1. 平顶山煤矿机械厂,河南,平顶山,467000
2. 天地科技股份有限公司,开采所,北京,100013 |
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| 摘 要： | 目前高强钢WH70 (σb=710MPa)在常温下 (大于 15℃ )焊接时 ,焊前需要预热、焊后需要退火。为此 ,对其焊接接头进行了试验 ,目的是为了实现在室温下焊接。试验采用CO2 气体保护焊 ,选用Q5 5 0高强度焊丝 ,同时就高强钢焊接性特点 ,制定了一整套焊接工艺。试验结果表明 ,采用Q5 5 0高强度焊丝 ,在对焊接工艺进行优化的情况下 ,可以实现高强钢WH70在常温下焊接。
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| 关 键 词： | 液压支架 焊接性 高强钢 Q550焊丝 WH70 |
| 文章编号： | 1003-0794(2003)04-0023-03 |
| 修稿时间： | 2002年12月29 |
Experimental analysis of weldability for WH70 steel used welding wire Q550 |
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| WANG Xiu_hai ,WANG Guo_fa ,XU Ya_jun ,WU Zhan_yue ,LI Yan_ping.Experimental analysis of weldability for WH70 steel used welding wire Q550[J].Coal Mine Machinery,2003(4):23-25. |
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| Authors: | WANG Xiu_hai WANG Guo_fa XU Ya_jun WU Zhan_yue LI Yan_ping |
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| Affiliation: | WANG Xiu_hai 1,WANG Guo_fa 2,XU Ya_jun 1,WU Zhan_yue 1,LI Yan_ping 1 |
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| Abstract: | When high strength steels WH70( σ b=710 MPa) was welded in room temperature (>15℃) at present,the welding component must be taken some welding procedures such as preheating and annealing.To weld WH70 steel in room temperature,experiments of weldability were carried out.Experiments adopted CO 2 shielded welding,choosed Q550 high strength welding wire and established a complete set of welding procedures.Experimental results show that WH70 steel is welded successfully in room temperature under the condition that choosing Q550 welding wire and optimizing welding procedure. |
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| Keywords: | hydraulic power support weldability high strength steels Q550 weld wire WH70 |
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