| 磷脱氧铜无缝管断裂原因分析 |
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| 引用本文： | 周晓霞,周千定,许麟康.磷脱氧铜无缝管断裂原因分析[J].理化检验(物理分册),2000,36(8):368-370. |
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| 作者姓名： | 周晓霞 周千定 许麟康 |
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| 作者单位： | [1]广州冷机股份有限公司 [2]华南理工大学机电系 |
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| 摘 要： | 用ＳＥＭ等方法对电冰箱压缩机用磷脱氧无缝铜管异常断裂进行了分析。结果表明，夹杂物局部偏聚是铜管断裂的内在原因，焊接时产生的热应力及弯曲变形是铜管断裂的外部诱发因素。有效的改进措施是严格控制杂质含量、将高温焊接工艺改为低温焊接工艺。
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| 关 键 词： | 磷脱氧铜 无缝管 断裂 夹杂 焊接 电冰箱 |
| 修稿时间： | 2000-01-19 |
ANALYSIS ON CRACKING OF SEAMLESS PHOSPHORUS-KILLED COPPER PIPE |
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| Zhou Xiaoxia
,Zhou Qianding
Xu Lingkang.ANALYSIS ON CRACKING OF SEAMLESS PHOSPHORUS-KILLED COPPER PIPE[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2000,36(8):368-370. |
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| Authors: | Zhou Xiaoxia Zhou Qianding
Xu Lingkang |
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| Affiliation: | Zhou Xiaoxia
,Zhou Qianding
;(Guangzhou Refrigeration Co. Ltd);Xu Lingkang
;(Mechano-Electronic Engineering Department, South China University of Technology) |
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| Abstract: | Unusual cracking of seamless phosphorus-killed copper pipe used in refrigeration are analyzed by means of SEM etc. The results shcw that the aggregation of inclusions is the internal cause of copper pipe cracking while the thermal stress formed during welding and bending deformation are another two important factors. The effective methods to avoid the cracking include lowering strictly the content of impurity and adopting low temperature welding process. |
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| Keywords: | Phosphorus-killed copper Seamless pipe Crack Inclusion Thermal stress Bending deformation |
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