| 新型J707Ni焊条的研制 |
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| 引用本文： | 阎澄,刘天佐,吴树雄,严河智. 新型J707Ni焊条的研制[J]. 兰州理工大学学报, 1991, 0(4) |
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| 作者姓名： | 阎澄 刘天佐 吴树雄 严河智 |
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| 作者单位： | 甘肃工业大学焊接研究所(阎澄，刘天佐)，长虹电焊条厂(吴树雄)，长虹电焊条厂(严河智) |
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| 摘 要： | 本文根据焊缝扩散氢含量、氧含量及焊条工艺性能的测定结果,确定了以CaCO_3-CaF_2-TiO_2为基本渣系;又通过金相及断口分析、能谱分析和机械性能测定,研究了Cr,Ni,Mo对焊缝强度及韧性的影响及焊缝的低温断裂过程,其最佳含量范围如下:Ni为1.4％～1.6％,Cr为0.2％,Mo为0.3％～0.4％。在此基础上研制出一种新型J707Ni焊条,其各项性能基本达到国外同类焊条水平。
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| 关 键 词： | 焊条 焊缝 强度 韧性 显微组织 |
The Development of a New Type J707Ni Electrode |
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| Yan Cheng,Liu Tianzuo Wu Shuxiong,Yan Hezhi. The Development of a New Type J707Ni Electrode[J]. Journal of Lanzhou University of Technology, 1991, 0(4) |
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| Authors: | Yan Cheng Liu Tianzuo Wu Shuxiong Yan Hezhi |
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| Abstract: | Based on the measurements of the diffusion hydrogen and oxygen content of weld metals and usability of the electrode,CaCO3-CaF2-TiO2-SiO2 is determined as the basic composition of the covering. By the metallograph, fractography, and EDAX analysis along with measurement of the mechanical properties of the weld metals,the effect of Ni,Cr,Mo on the strength and toughness of the weld metals and the fracture process at low temperature have been studied. The optimum content of alloy elements are as follows:l. 4%- 1. 6% Ni, 0. 2%Cr and 0. 3%-0. 4% Mo. Based on the results above mentioned , a new electrode named J707Ni has been developed and its properties are similar to some advanced electrodes produced abroad. |
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| Keywords: | electrode weld strength toughness microstructure |
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