摘要
某结构要求合金铸铁件有较高的抗弯性能、硬度和挠度。从含Cu灰铸铁的熔炼元素配比、碳当量预控以及冷却方式进行了对比试验。结果表明,与普通灰铸铁相比,含Cu量1.50wt%~2.00wt%的合金铸铁强度提高;碳当量为3.53%时可得到硬度一致性好的铸件;对于棒形毛坯,浇注时采用凉壳不填砂及浇注后间隔冷却方式,可获得抗弯强度高的HTCu1.8合金铸铁件。
A certain structure requires high bending resistance, hardness and deflection of alloy cast iron. Comparative experiments were carried out on melting element ratio, pre-control of carbon equivalent and cooling method of Cu gray cast iron. The results show that the strength of alloy cast iron with Cu content of 1.50%-2.00 wt% is improved compared with that of ordinary gray cast iron;when the carbon equivalent is 3.53%, castings with good hardness consistency can be obtained;for bar blank, HTCu1.8 alloy cast iron with high bending strength can be obtained by cooling shell without sand filling and interval cooling after pouring.
作者
刘伟红
陈素明
刘焕文
LIU Weihong;CHEN Suming;LIU Huanwen(Manufacturing Engineering Department of Xi'an Aircraft Industry(Group)Co.,Ltd.,Xian 710089,China)
出处
《热加工工艺》
北大核心
2022年第19期63-65,共3页
Hot Working Technology
