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全国机械工业技术表演交流会于9月10日—19日在上海召开。出席会议的有全国二十九个省、市、自治区的代表共四百四十人。表演项目有金属切削、铸造、锻压、热处理等专业的先进技术309项。这是我国第一次跨地区、跨行业、多工种的综合性技术表演交流大会。焊接专业参加表演和实物图片展出共五十余项。在喷涂和喷焊方面,介绍了自熔性合金粉末氧—乙炔火焰(或等离子焰喷焊)新工艺,其特点是,喷焊层与基材的结合强度较高,稀释率小,工件表面硬度达到HRC13.4～65,耐
The National Mechanical Industry Technical Performance Exchange Conference was held in Shanghai on September 10-19. A total of 440 delegates attended the meeting from 29 provinces, municipalities and autonomous regions across the country. There are 309 advanced technologies of metal cutting, casting, forging, heat treatment and other professional projects. This is the first comprehensive exchange of technical performances conducted across different regions, industries and industries in our country. Welding professional to participate in performances and pictures show a total of more than 50 items. In spray and spray welding, introduced a new self-fluxing alloy powder oxy-acetylene flame (or plasma flame spray) new technology, which is characterized by spray coating and substrate bonding strength is high, the dilution rate is small, the workpiece surface Hardness HRC13.4 ~ 65, resistance