| 钨带冷弯时断裂原因分析 |
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| 引用本文： | 丁丽,刘立娜,周智慧,蔺娴,章安辉,李剑. 钨带冷弯时断裂原因分析[J]. 真空电子技术, 2011, 0(4): 46-48 |
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| 作者姓名： | 丁丽 刘立娜 周智慧 蔺娴 章安辉 李剑 |
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| 作者单位： | 1. 中国电子科技集团公司第四十六研究所,天津,300192
2. 成都虹波事业股份有限公司,四川成都,610100 |
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| 摘 要： | 钨带在90°弯曲时发生断裂,通过分析发现,断裂钨带碳含量偏高,断口处分层并呈蜂窝式片状形貌,断口附近金相组织也显示出明显的带状组织,断口处组织呈纤维状,断口为脆性断口。建议将材料含量控制在0.0050%以下,在90°弯曲时加热,加热温度在650～800℃,以降低钨带的脆性,增加弯曲时的韧性,提高成品率。
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| 关 键 词： | 钨带 断裂 |
Causes Analysis for the Cracking of Tungsten Strip Cold Bending |
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| DING Li,LIU Li-na,ZHOU Zhi-hui,LIN Xian,ZHANG An-hui,LI Jian. Causes Analysis for the Cracking of Tungsten Strip Cold Bending[J]. Vacuum Electronics, 2011, 0(4): 46-48 |
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| Authors: | DING Li LIU Li-na ZHOU Zhi-hui LIN Xian ZHANG An-hui LI Jian |
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| Affiliation: | DING Li1,LIU Li-na1,ZHOU Zhi-hui1,LIN Xian1,ZHANG An-hui1,LI Jian2 (1.The 46th Research Institute,CETC,Tianjin 300192,China,2.Chengdu Hongbo Industrial Co.LTD,Chengdu 610100,China) |
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| Abstract: | The tungsten strip will crack with 90° of cold bending..It＇s find that the carbon content is bit high of the crack tungsten strip.The fracture is delaminated,cellular and flaky.Nearby fracture metallographic structure also show obvious banded structure.Fracture appears fiber structure,and it is brittle fracture.It＇s suggested that carbon content should be controlled below 0.005% in tungsten strip,heat the strip to 650~800℃ when bend to 90°.It will reduce friability of tungsten strip,improve bend ductility,and raise the rate of finished products. |
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| Keywords: | Tungsten strip Fracture |
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