摘要
Induction brazecoating technology is an important means to improve the surface properties of materials.In this paper,copper plate and corundum are selected as substrates for induction brazecoating respectively.The temperature variation of powder and paste coating is systematically studied,and the heat conduction mode and path in the brazecoating process are analyzed.The results show that rise of the coating temperature mainly depends on the heat absorption from the substrate.The liquid-solid interface conducts heat violently and advances step by step,which promotes the melting spread of metal filler metal.The powdery brazecoating material is in a free state,and there is a gas insulation film between the powder particles and the diamond,making it difficult for substrate to conduct heat to the coating.The binder not only assists forming,shell making and oxygen isolation,but also plays an important role during melting.
作者
龙伟民
王梦凡
刘大双
张雷
张冠星
王鑫华
王水庆
Long Weimin;Wang Mengfan;Liu Dashuang;Zhang Lei;Zhang Guanxing;Wang Xinhua;Wang Shuiqing(China Academy of Machinery Ningbo Academy of Intelligent Machine Tool Co.,Ltd.,Ningbo 315700,China;State Key Laboratory of Advanced Brazing Filler Metals and Technology,Zhengzhou Research Institute of Mechanical Engineering Co.,Ltd.,Zhengzhou 450001,China;School of Material Science and Engineering,Hefei University of Technology,Hefei 230009,China;Zhejiang Xinrui Welding Technology Co.,Ltd.,Shaoxing 312000,China)
基金
supported by the 2020 Ningbo “3315 Talent Introduction Plan” Innovative Team (C-Class)
the major project of Ningbo “Scientific and Technological Innovation 2025”(Grant No.2020Z111)
Science and Technology Major Project of Zhejiang Province (No.203ZP20220161)
