A new cooling method for vacuum brazing of a stainless steel plate-fin structure

被引：40
|
作者：
Jiang, Wenchun [1 ,2 ]
Gong, Jianming [1 ]
Tu, S. T. [1 ]
机构：
[1] Nanjing Univ Technol, Sch Mech & Power Engn, Nanjing 210009, Peoples R China
[2] China Univ Petr, Coll Mech & Elect Engn, Dongying 257061, Peoples R China
来源：
MATERIALS & DESIGN | 2010年 / 31卷 / 01期
基金：
中国国家自然科学基金;
关键词：
RESIDUAL-STRESS; INCONEL X-750; TEMPERATURE; DESIGN; JOINT;
D O I：
10.1016/j.matdes.2009.04.039
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents a new cooling method for vacuum brazing of 304 stainless steel plate-fin structures with Nickel-based BNi2 filler metal. The tensile tests and scanning electron microscope (SEM) observations have been performed. Quick cooling method and a new developed slow cooling method have been used, respectively, to discuss the influence of cooling methods on tensile strength and microstructures. The quick cooling is performed by dry nitrogen and wind cooling system directly from brazing temperature 1050 degrees C. The new slow cooling method is self-cooling in vacuum furnace from 1050 to 620 degrees C, then it is changed to quick cooling with dry nitrogen and wind cooling. The results show that quick cooling method should not be used because thermal cracks will be created and decrease the strength. The new developed slow cooling method can greatly improve the brazing performance. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：648 / 653
页数：6
相关论文
共 50 条
  • [31] Three-dimensional numerical simulation of brazed residual stress and its high-temperature redistribution for stainless steel plate-fin structure
    Jiang, W. C.
    Gong, J. M.
    Tu, S. D.
    Chen, H.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 499 (1-2): : 293 - 298
  • [32] A thermodynamic method for the comparison of plate-fin heat exchanger performance
    Tagliafico, L
    Tanda, G
    JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1996, 118 (03): : 805 - 809
  • [33] Plate-fin array cooling using a finger-like piezoelectric fan
    Shyu, Jin-Cherng
    Syu, Jhih-Zong
    APPLIED THERMAL ENGINEERING, 2014, 62 (02) : 573 - 580
  • [34] Numerical and experimental study on intermittent spray cooling for plate-fin heat exchanger
    Jin, Qi
    Yu, Yanshun
    Zhang, Jiahui
    APPLIED THERMAL ENGINEERING, 2023, 234
  • [35] VACUUM BRAZING STUDIES ON HIGH MANGANESE STAINLESS-STEEL
    BENNETT, WS
    HILLYER, RF
    KELLER, DL
    RIEFENBE.DH
    WELDING JOURNAL, 1974, 53 (11) : S510 - S516
  • [36] Simulation on the plate-fin thermal storage in a new desalination system
    Xu, Shu
    Ling, Xiang
    Peng, Hao
    Journal of Convergence Information Technology, 2012, 7 (13) : 387 - 395
  • [37] Effect of Brazing Fillet on the Microstructure and Mechanical Properties of Vacuum Brazing Stainless Steel Joints
    Chen, Huixin
    Li, Nian
    Wei, Xinlong
    Liu, Shangwen
    Ling, Xiang
    METALS, 2023, 13 (08)
  • [38] New application of plate-fin heat exchanger with regenerative cryocoolers
    Chang, Ho-Myung
    Gwak, Kyung Hyun
    CRYOGENICS, 2015, 70 : 1 - 8
  • [39] New techniques of plate-fin heat exchangers and its application
    Ling, Xiang
    Zhou, Guo-Yan
    Zou, Qun-Cai
    Tu, Shan-Dong
    Shiyou Huagong Shebei/ Petro-Chemical Equipment, 2002, 31 (02):
  • [40] Application of entransy theory on structure optimization of serrated fin in plate-fin heat exchanger
    Li, Ke
    Wen, Jian
    Liu, Yuce
    Liu, Huaqing
    Wang, Simin
    Tu, Jiyuan
    APPLIED THERMAL ENGINEERING, 2020, 173
12345