金属加工（热加工）Issue(7)：24-30,7.
辊压机辊面堆焊区域的力学性能研究
Research on the mechanical properties of the welding area on the roller surface of the roller press
摘要
Abstract
Due to the difference in properties between the metal deposited on the roller surface and the substrate material,the wear-resistant layer of the metal deposited on the roller surface may peel off,which cannot meet the working environment of the roller press under harsh high stress conditions.Therefore,four different types of welding rods were selected to prepare flux cored welding wires,and the mechanical properties of the area after the welding rod and the roller press roller surface were studied.Select Q355 steel plate,which is closest to the roller surface material,as the substrate material.Four types of welding rods,including high chromium and high manganese,titanium carbide,high chromium cast iron,and niobium containing,are selected for overlay welding of the substrate material.Analyze the mechanical properties of the overlay welding area from the aspects of bonding strength,microstructure,shear strength,tensile strength,and wear quality.According to the experimental results,it can be seen that after using high chromium and high manganese welding rods to weld the substrate material,the bonding strength between the overlay area and the substrate material is the highest.In terms of microstructure,the toughness of the bonding position is higher after using high chromium and high manganese welding rods,making it easier to form hard phases during the welding process.The shear strength can reach up to 15MPa,the tensile strength can reach 436.2MPa,the elongation rate is 29.3％,and the loss of area wear quality does not exceed 15g.It has high hardness and wear resistance,and can resist high-strength wear borne by the roller surface of the roller press during work,which is conducive to ensuring the long-term stable operation of the roller surface.关键词
辊压机/堆焊区域/力学性能/结合强度/抗拉强度/剪切强度Key words
roller press/welding area/mechanical properties/bond strength/tensile strength/shear strength引用本文复制引用
胡励农..辊压机辊面堆焊区域的力学性能研究[J].金属加工（热加工）,2025,(7):24-30,7.基金项目
海南省重点研发项目(ZAYS2023SAFD135). （ZAYS2023SAFD135）
