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文章介绍了热模法铸态离心球铁管的生产工艺特点和目前铸态球铁管的质量水平,提出了发展热模法工艺需要解决的两个技术关键及看法。前言球墨铸铁管是当今世界输送水、油等流体介质的理想产品。离心球墨铸铁管的金属型铸型生产工艺目前有冷模法、热模法两种。在国内外广泛采用的冷模法生产工艺技术成熟,按ISO 2531标准组织生产;而热模法工艺生产的铸态球铁管,延伸
This paper introduces the production process characteristics of the as-cast centrifugal ductile iron mold by hot mold method and the quality level of cast ductile iron pipe at present, and puts forward two technical key points and views that need to be solved in the development of the hot mold process. Foreword Ductile iron pipe is the ideal product for conveying fluid medium such as water and oil in today’s world. Centrifugal ductile iron pipe metal casting production process currently has cold mold method, two kinds of hot-mode. At home and abroad widely used in cold-mold production technology is mature, according to ISO 2531 standard production; and die produced by the hot-die process ductile iron pipe, extending