摘要
对一些原来采用砂型铸造的小型圆筒形碳钢铸件 ,因铸造缺陷多、铸造废品率高 ,根据其H/D≤ 2 .0 ,且主要壁厚δ≤ 15mm ,铸件单件质量 <10kg的特点 ,确定采用熔模铸造。试验比较了顶注式、底注式两种方案 ,试验表明 ,采用合理的底注式浇注系统和浇注工艺 ,能够获得质量较好的健全铸件 ,铸件的合格率可达到 90 %以上。
Due to a great deal of casting defects and high rejected rate for small cylindric carbon steel casting with H/D ≤2.0, main wall thickness δ ≤15 mm and single piece weight <10 kg, it is determined to change casting in sand mold to in investment casting with both top and bottom pouring for experimental comparison. Results showed that sound casting and more than 90% qualified rate could be obtained using rational bottom gating system and pouring process.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2001年第6期41-42,共2页
Special Casting & Nonferrous Alloys
关键词
碳钢铸件
圆筒形
熔模铸造
Carbon Steel Casting, Cylinder, Investment Casting
