| 焊材和焊接工艺对灰铸铁焊接接头组织和硬度的影响 |
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| 引用本文： | 夏青,刘亚民,郭国庆.焊材和焊接工艺对灰铸铁焊接接头组织和硬度的影响[J].河南科技大学学报(自然科学版),2002,23(3):24-27. |
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| 作者姓名： | 夏青 刘亚民 郭国庆 |
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| 作者单位： | 洛阳工学院,材料科学与工程系,河南,洛阳,471003 |
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| 基金项目： | 洛阳工学院科研基金资助项目 (990 3 ) |
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| 摘 要： | 灰铸铁使用一般焊材冷焊时 ,容易在焊缝和半熔化区出现白口和淬硬组织 ,热焊工艺则能耗大 ,劳动条件差 ,生产率低。本研究采用E4 30 3、Z2 0 8、Z4 0 8焊条 ,配合电弧冷焊和半热焊工艺对灰铸铁进行了焊接试验 ,比较了各种焊缝和半熔化区的组织、硬度、半熔化区的白口宽度 ,结果表明 :E4 30 3焊条配合半热焊工艺 ,Z4 0 8焊条配合冷焊和半热焊工艺适合焊接灰铸铁的加工面
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| 关 键 词： | 灰铸铁 焊接接头区 焊接结构 焊接工艺 |
| 文章编号： | 1000-5080(2002)03-0024-04 |
| 修稿时间： | 2002年3月14日 |
Influence of Welding Material and Process on Structure and Hardness of Gray Cast Iron Seam |
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| XIA Qing,LIU Ya Min,GUO Guo Qing.Influence of Welding Material and Process on Structure and Hardness of Gray Cast Iron Seam[J].Journal of Henan University of Science & Technology:Natural Science,2002,23(3):24-27. |
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| Authors: | XIA Qing LIU Ya Min GUO Guo Qing |
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| Abstract: | Chill structure and quenching texture easly appear in seam and half melted zone when cold welding with general welding material,however,there exist some defects such as high energy consumption,bad state of operation and low productivity when hot welding.The welding experiments on specimen of gray cast iron were wade with three kinds of welding rods(E4303,Z208,Z408)and two kinds of welding processes (cold welding and half heat arc welding), and the structure of seam and chill structure width of half melted zone were surveyed and analyzed. The results showed that using E4303 with half heat arc welding and using Z408 with cold welding or half heat arc welding are suited to weld working surface of gray cast iron. |
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| Keywords: | Gray cast iron Weld reginos Welded structures Welding technology |
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