通过对日本等国外阀瓣实物的分析测试和国外文献的收集、消化,与科研单位通过合作研究开发,进行了材料成份的优化设计,试制成功的阀瓣材料的物理性能和力学性能.均达到和超过了日本实物水平,特别是优化的热处理工艺实用性和产品的可靠性均超出了日本文献水平。 Through the physical analysis and testing of foreign valves such as Japan and the collection and digestion of foreign documents, and the cooperation with research institutes through scientific research and development, the optimal design of material components and the successful development of the physical and mechanical properties of valve materials have been achieved And beyond the Japanese physical level, especially the optimization of heat treatment process and the reliability of the products are beyond the level of Japanese literature.