论述一种对铸件的力学性能提供合格保障的质保技术,其实现方法包括:通过快速化学分析方法测定铁液、钢液、铝液或铜液的成分。并根据情况调整炉前的配料和熔化程序;通过快速金相分析,将铸件的金相组织数据指令发给浇铸程序,以免不合格的铁液等浇铸成铸件。该质保技术同时保证化学成分和金相组织数据合格,从而保证铸件的力学性能和最终质量。实践结果显示,检测单件力学性能合格率达98%以上。

A quality assurance technique for ensuring mechanical properties of casts is discussed. The technique is performed by many steps including: rapid chemical analysis to get the components of melted iron,steel,aluminum or copper and mixing and melting programs adjustment according to the results;rapid metallographic analysis to get information of the casts then send to the moulding programs to avoid the disqualified iron melt,aluminum melt,aluminum melt or copper melt moulding into casts. The quality assurance technique ensures the wanted chemical components and metallographic information,so the mechanical properties and the quality of the casts are well assured. The technique has been used on the practices of making irons and steels,the result shows that the passing percent of mechanical property of single cast has reached 98% after using the technique.