High refractory foundry mould ceramic tubes

タイトルまたは説明

1.The high density of the ceramic sprue tube for casting greatly
reduces the secondary oxidation of the molten steel in the pouring
process, and reduces the inclusion of objects into the casting body.
2.Ceramic sprue tube for casting has high refractoriness
(>***0 ℃ ), abrasion resistance, convenient to use.
3. The corrosion resistance of the Ceramic sprue tube for casting
is superior to runner brick greatly. The sprue tube also has good
chemical stability, it won’t cause chemical reaction with metal
liquid(molten steel or molten iron) under high temperature. After
pouring, the surface of the pouring channel is smooth, and the
pouring process is free of corrosion .
4. The sprue tube has high thermal strength, good thermal plastic.
It can effectively prevent sand washing or inclusion , and reduce the
defects of the casting sand holes. The thermal expansion coefficient
is low, and the shrinkage effect of casting is small , which reduce the
cracking phenomenon in gating system.