A new filtration technique for purification of carbon, stainless, high speed, low and high alloy steel castings in investment casting was investigated. 研究了在熔模精密铸造中过滤净化碳钢、低合金钢和高合金钢等铸钢件的过滤新技术。
The new process of the purification for Carbon steel Castings 、 stainless steel castings, high speed steel castings, low alloy castings and high alloy steel castings and so on. and it's filtration effects are investigated. 研究了采用熔模铸造帽式过滤器净化碳钢、不锈钢、高速钢、低合金钢和高合金钢等精铸件的过滤新工艺及其过滤效果。
This paper shows the results of a study of an intergranular fracture in bot low alloy steel castings, Poor ductility and low toughness are often associated with fracture mode. 对两种低合金铸钢的沿晶脆性断裂现象进行了研究,结果表明,两种脆化材料的断口均为沿晶脆性断裂。
An experimental investigation was made on the effect of the microstructure on the low-temperature toughness of the conventional low alloy steel used for petroleum machinery castings and forgings. 试验研究了石油机械铸锻件常用低合金钢的显微组织结构对低温冲击韧性的影响。