HTM ›› 2020, Vol. 45 ›› Issue (1): 69-75.DOI: 10.13251/j.issn.0254-6051.2020.01.015

Previous Articles     Next Articles

Temperature field simulation and experimental verification of Invar36/Ni60 composite coating by induction cladding

Li Qi, Shi Yongjun, Sun Rui, Wang Ruihai, Zhai Changmin   

  1. College of Mechanical and Electrical Engineering, China University of Petroleum East China, Qingdao Shandong 266580, China
  • Received:2019-07-05 Online:2020-01-25 Published:2020-04-03

Abstract: The temperature field of induction cladding Invar36/Ni60 composite coating was simulated by finite element method, and the experimental verification was carried out. The influence of different process parameters on temperature distribution was analyzed, and the relationship between temperature distribution and coating quality was studied. The simulation results show that the highest temperature field of Invar36/Ni60 composite coating appears near the surface of the substrate. Current density and power frequency are the main factors affecting the temperature field. Increasing the content of Invar36 will make the temperature of the coating decrease slightly and increase the temperature difference between inside and outside of coating. In order to improve the success rate of cladding and reduce the crack defects, the temperature inside the coating should be controlled between 1430-1600 ℃, when heating the coating, a current density of 2.0×10 7 A/m 2 or less should be selected, and the heating time should be controlled between 24 s and 28 s.

Key words: induction cladding, finite element, temperature field, composite coating

CLC Number: