用一种新方法校验液态铸铁的碳当量

• 出 处: 上海机械
• 发表日期: 1962年06期
• 关键词: 碳当量 铁水包 连续冷却 记录图 法使 化学成分 热分析 亚共晶 可从

据英国金属杂志1969年2月报导:英国铸铁研究所已实行借热分析以快速测定碳当量的方法。该法使液态铸铁在铸型以前,能及时地校验碳当量,从而使液态铸铁的化学成分得到修正。方法如下: (1)从铁水包内取适量的铁水试样,并浇入砂模内。 (2)在砂模内插入一个能测至1550℃的热电偶。 (3)当试样冷却时,可从记录指示器内得到一个温度连续冷却记录图。

According to British Metal Magazine in February 1969 reported: British Institute of Cast Iron has implemented a thermal analysis to quickly determine the carbon equivalent method. The method allows liquid cast iron in the mold before the timely verification of carbon equivalent, so that the liquid cast iron chemical composition be amended. The method is as follows: (1) Take a proper amount of hot metal sample from the ladle, and pour it into the sand mold. (2) Insert a thermocouple measuring 1550 ° C into the sand mold. (3) When the specimen is cooled, a record of the continuous cooling of the temperature can be obtained from the recording indicator.