TEL：+86-13567841157
+86-15771805138
+86-18958238181
E-mail：zhiye@zy-casting.com
ycn@zy-casting.com
santos@zy-casting.com
Website：www.zy-casting.com
Address: Xiachen Industrial Zone, ChunhuTown, Fenghua District, Ningbo CityZhejiang Province，China-315538
Process | Silica sol Casting (Green Wax) |
Mold | General Aluminum Mold & Steel Mold |
Mould Materia | Silica sol, Mullite Sand, Zircon Sand |
Mould Shell | Fireproof Coating |
Technology Characteristics | ISuitable for producing small parts. Better precision. Better surface roughness. Can large extent reduce machining. |
Tolerance Range | CT5 to CT6 |
Single Weight | 0.01kgs to 30kgs |
Surface Roughness | RA6.3 |
Casting Material Type | Carbon Steel, Alloy Steel, Stainless Steel, Ductile Iron. |
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 |
碳钢高精密铸件表面结砂是钢液空气氧化造成，传统式的精密铸造配件涂料仅仅在铸件和铸型正中间具有阻拦隔离作用，做到防粘砂目地，但有时候还会继续在铸件一部分或大规模粘砂。这是由于高溫液体金属被氧化而产生氢氧化物，关键物质是空气氧化亚铁FeO，其溶点为1370℃。FeO与型砂的SiO2起化学变化，转化成硅酸亚铁，硅酸亚铁的熔点极低，仅有1220℃，因而流通性非常好，即便铸件表面已经有凝结壳，新转化成的硅酸亚铁仍呈液体，便于渗入入建筑涂料进到砂模孔隙度中。
精密铸造厂家详细介绍凝固后的硅酸亚铁对高精密铸件，建筑涂料和型砂，都是有很强的粘结力，可以将型砂坚固黏附在铸件表面上，产生一系列的低溶点化学物质，在铸件厚壁管及拐角处等，低溶点物大量，粘砂层更后，导致铸件粘砂，将其称之为有机化学粘砂。
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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