【摘要】 对热喷焊法修补大型机械零部件喷焊层的显微组织进行了观测,对喷焊层/基体的结合强度作了测定,结果表明,喷焊层与45~#钢基体的结合强度高达499MPa,结合界面结构致密,喷焊层耐腐蚀、耐磨损。将热喷焊法应用于大型水压机和挤压机柱塞的修补证实,喷焊法修补质量很高,比用喷涂法和堆焊法修补显示出明显的优势。更多还原

【Abstract】 The reliability of heavy machine paarts mending by thermal spray welding was studied through analyzing the microstructure of the coating and measuring the bonding strength of coating/matrix.The resuits show that the bonding strength is 499MPa and the structure of the bonding interface is dense.The spray welded loyer is corrosion resistant and wear resistant.The clear and vantages of this technique over spray coating and built-up welding are also reported.更多还原