介绍了日本冲天炉，感应电炉的铸铁熔炼技术进展。
The progress of cupola and induction furnace melting techniques of cast iron in Japan was introduced.
对铸铁熔炼、球化处理及铸造缺陷的防止等方面提出了控制措施，并应用于实际生产。
Iron smelting and spheroidizing, casting defects prevention should be controlled effectively. Finally, the paper discusses how to apply it to the actual production.
介绍了球墨铸铁曲轴的铸造方法、熔炼工艺和热处理工艺，同时描述了预防一般缺陷的措施。
Foundry method, melting process, heat treatment process for nodular iron crankshaft was introduced and the measures to prevent common defects were described.
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