论文部分内容阅读
今年,大连钢厂为了解决试制了两年的铁铬铝高电阻合金的质量问题,已分别与科学院金属研究所、机电研究所、北京钢铁学院等三个单位进行技术合作。铁铬铝高电阻合金是为节约镍铬高电阻合金中全部镍含量的廉价代用品。大连钢厂自1956年初即开始试制了五种牌号的铁铬铝合金。试制过程中问题很多,成品收合率很低。发生的主要问题是:冶炼过程中钢锭上涨,锻造时钢锭横裂,锻造冷却后纵裂,热
This year, in order to solve the quality problem of the iron-chromium-aluminum high-resistance alloy trial-produced for two years, Dalian Steel Mills has conducted technical cooperation with the Institute of Metals, Institute of Mechatronics, Beijing Institute of Iron and Steel, respectively. Iron-chromium-aluminum high-resistance alloy is a cheap substitute for saving the entire nickel content in the high-resistance nickel-chromium alloy. Dalian Steel began trial production of five grades of iron-chromium aluminum alloy from the beginning of 1956. There are many problems in the trial production process, finished product consolidation rate is very low. The main problems occurred are: ingot ingot rising in smelting process, ingot transverse cracking in forging, longitudinal cracking in forging cooling, heat