[1]许敬年,曹秀丽,冯 涛.铝制冷却器真空钎焊接头界面结构及断口分析[J].焊管,2012,35(9):21-24.[doi:1001-3938(2012)09-0021-04]
 XU Jingnian,CAO Xiuli,FENG Tao.Interface Structure and Fracture Analysis of Aluminum Cooler Vacuum Brazing Joint[J].,2012,35(9):21-24.[doi:1001-3938(2012)09-0021-04]
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铝制冷却器真空钎焊接头界面结构及断口分析
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
35
期数:
2012年第9期
页码:
21-24
栏目:
试验与研究
出版日期:
2012-09-28

文章信息/Info

Title:
Interface Structure and Fracture Analysis of Aluminum Cooler Vacuum Brazing Joint
文章编号:
1001-3938(2012)09-0021-04
作者:
许敬年1曹秀丽2冯 涛1
(1.中国石油大学 机电学院材料系,山东 青岛 266555;
2.中国石油大学出版社,山东 青岛 266555)
Author(s):
XU Jingnian1 CAO Xiuli2 FENG Tao1
(1 College of Mechanical & Electronic Engineering, China University of Petroleum, Qingdao 266555,Shandong,China;
2. China University of Petroleum Press, Qingdao 266555, Shandong, China)
关键词:
LT-3铝复合板真空钎焊水压试验断口断裂机制
Keywords:
 LT-3 aluminum composite plate vacuum brazing hydrostatic test fracture fracture mechanism
分类号:
TG407
DOI:
1001-3938(2012)09-0021-04
文献标志码:
A
摘要:
采用真空钎焊技术研制了一种用于高级轿车的铝制冷却器。采用LT-3铝复合板材进行了焊接试验,分析了钎焊接头的组织,并对所试制的铝制板翅式冷却器进行了水压试验及其断口分析。结果表明,钎焊接头中生成了网状共晶组织,接头中生成了金属间化合物。焊接完成的板翅式冷却器水压试验压力可达到15 kg/cm2以上,钎焊接头断口属于混合断裂,断口表面分布有二次裂纹、韧窝、解理面、沿晶断裂等断裂特征。
Abstract:
A kind of aluminum cooler used for advanced car by adopting vacuum brazing technology was developed. Welding test was conducted by Utilizing LT-3 aluminum composite plate. The structure of brazing joint was analyzed, and hydrostatic test and fracture analysis on fin type cooler of trial produced aluminum composite plate were carried out. The results showed that there are some reticular eutectic structures and intermetallic compound in the brazing joint. The hydrostatic test pressure of fine type cooler can reach more than 15 kg/cm2, the fracture type of the brazing joint is mixed fracture, and secondary cracks, dimples, cleavage planes and intergranular fracture etc. distribute on the surface of the fracture.

参考文献/References:

[1] 胡刚,康慧. 铝合金真空钎焊的发展[J].焊接技术. 2001,30(02):1-3.
[2] TERRILL J R,COCHRAN C N,STOKES J J,et al.Understanding the Mechanisms of Aluminum Brazing[J]. Welding Journal. 1971,50(12):833-839.
[3] 甘卫平,韦家弘,肖亚庆,等. 三层复合铝合金带材热轧复合包覆率的计算[J].中国有色金属学报. 1998,8(02):206-209.
[4] 钟向阳,蒋金龙. 管带式热交换器真空钎焊工业及影响钎焊质量的因素[J].焊接.1999(11):23-26.
[5] HOKE II W,AMENHEUSER C. Techniques for Aluminum Brazing in Vacuume Furnaces[J]. Welding Journal. 1993,
72(10):65-67.
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备注/Memo

备注/Memo:
作者简介:许敬年(1965—),男,实验师,长期从事机械设计及新材料的焊接研究,并多次参与了国家及省部级基金项目的开发工作。
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