摘要
大口径球墨铸铁管(DN1200及以上)在大型输水工程中的作用越来越重要,目前其主要采用热模涂料法离心铸造工艺生产。介绍了热模离心球铁管铸造工艺,分别从熔炼、球化、管模喷涂、离心浇注、孕育、退火等工序进行了详细阐述。
The role of large diameter ductile iron pipes(DN1200 and above) is becoming more and more important in large water conveyance projects. At present, they are mainly produced by hot-mold coating centrifugal casting.In the paper, the casting process of hot-mold centrifugal ductile iron pipes is introduced. The processes of smelting, spheroidizing, spraying, centrifugal casting, inoculation and annealing are described in detail.
引文
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