本刊1979年第4期刊登了北京内燃机配件厂滚丝模攻关组的“我厂是怎样提高滚丝模使用寿命的”一文后,不少读者来信询问哈尔滨第一工具厂采用的高温箱式炉木炭保护的方法,现发表该厂祝国华、师义同志所写“滚丝轮的热处理”一文,以满足大家要求。 Issue 4, 1979 Issue published in Beijing internal combustion engine parts factory rolling wire attack group “I plant is how to improve the service life of roller mold,” a lot of readers asked Harbin first tool used in high-temperature box Furnace charcoal protection method, is now published in the plant Zhu Guohua, Comrade Shijie wrote “Rolling wheel heat treatment,” a text to meet everyone’s requirements.