Process | Lost Foam Casting |
Pattern | General Aluminum mould & Steel mold |
Mould Materia | STMMA copolymer resin |
Mould Shell | Fireproof Coating |
Technology Characteristics | Instead of the traditional sand Mold casting. Without the core-makingprocess.Better dimensional accuracy. |
Tolerance Range | CT8 to CT9 |
Single Weight | 0.2kgs to 200kgs |
Surface Roughness | RA12.5 |
Casting Material Type | Ductile iron, gray iron, alloy steel |
Common Material Specification | GB, ASTM,SAE,AISI,DIN,BS,JIS,NF,EN,AAR,ISO |
Product application field | Automobile, Engineering Machinery, Railway, Marine, AgriculturalMachinery, Mining and other industrial fields |
1、变形
精密铸造模具从压型中拿出后,除开规格产生变小转变外,因取下时技巧不当之处而人为性导致变形;因为蜡模依然在制冷进而温度场产生变化而拉伸应变变形是最常见的。因此才从压型中取出来蜡模仍要谨慎放置,一般以比较大平面图为依据放正,如果需要应用与变形位置相匹配的样子,制成金属块置入蜡模避免变形,也即便其充足制冷。也有可能蜡料过软,压型的构成构件不适合等。
2、毛翅(披缝)
这也是常见的一种缺点,则在压型合型处,压型组成块相接处,型芯与芯座的相接处等位置有薄薄的蜡片逸出。其形成的原因通常是压型精密度不足,压型分型面或型内部结构件连接面受到破坏或粘附不干净的物,或合型力不足,射出去工作压力太高。或是蜡的温度太高。毛刺务必彻底消除掉,不锈钢精密铸造公司的蜡模才能进行。
3、黏着
蜡模与压型黏着是因为没有应用离型剂,或者蜡与压型的温度均过高,或者压型受损、压型不清理所导致。
Contact information:+86-13567841157
+86-15771805138
E-mail:zhiye@zy-casting.com
ycn@zy-casting.com
Website:www.zy-casting.com
Address: Xiachen Industrial Zone, ChunhuTown, Fenghua District, Ningbo CityZhejiang Province,China-315538
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