摘要
400系列不锈钢材质在熔模铸造生产中易发生氧化,导致铸件产生麻点及麻坑缺陷。在制壳过程中加一层石墨砂,使浇注后钢液与型壳接触面形成还原性气氛,可防止麻点麻坑的产生,保证成品率,提高生产效率。
Mechanical pitting and pockmark defects are often founded on the surface of 400 series stainless steel casting by investment casting because of oxidation. A layer of graphite sand was added during the shell mold making process, which can make the reducing atmosphere between the steel melt and surface of the mold. The above measures can prevent the mechanical pitting and pockmark defects, ensure the yield of the castings, and improve production efficiency
出处
《铸造》
CAS
CSCD
北大核心
2017年第7期707-710,共4页
Foundry
关键词
400系列不锈钢
熔模铸造
麻点
麻坑
石墨砂
400 series stainless steel
investment casting
mechanical pitting
pockmark
graphite sand
