太原矿山机器厂改进熔化工作的经验

• 出 处: 铸工
• 发表日期: 1954年10期
• 关键词: 机器厂 铁料 铸铁 球墨铸铁 普通铸铁 化铁 矿山 产品质量 抗拉强度 铸件

一九五二年以来,由于生产发展的需要,球墨铸铁、高级铸铁等性能要求此较严格的铸件日渐增多,但当时缺乏足够的生产知识,忽视了新情况,于是在熔化工作上暴露了许多弱点,严重地影响了产品质量。例如СЧ32高级铸铁,—般抗拉强度只达到25~27公斤/公厘~2,最低的只有22公斤/公厘~2;普通铸铁也软硬不一,控制不好。出了问题互相埋怨,熔化工认为化铁不是车铁料,进了炉谁也掌握不了软硬;技术人员认为

Since 1952, due to the needs of production and development, ductile cast iron and high-grade cast iron have been required to have more stringent performance requirements. At that time, they lacked sufficient production knowledge and neglected the new situation, thus exposing many of the melting work Weakness, has seriously affected the product quality. For example, СЧ32 advanced cast iron, general tensile strength only reached 25 ~ 27 kg / mm ~ 2, the lowest of only 22 kg / mm ~ 2; ordinary cast iron also hard and soft, poor control. Out of the question blame each other, melting chemical iron is not iron car iron, into the furnace who can not control the hard and soft; technicians think