Graphite powder is an important raw material in metallurgical casting industry, and there are many kinds of graphite powder, common flake graphite powder, natural graphite powder and other specifications.Casting graphite powder has metallic luster, soft quality, stable chemical properties, and is not affected by strong acid and alkali.Less harmful impurities, low content of iron, sulfur, phosphorus, nitrogen, molybdenum, hydrogen, with high temperature resistance, heat transfer, electrical conductivity, lubrication, and plasticity, mainly located in Hebei, Henan, Hunan, Shanxi, Inner Mongolia and other areas.Cast graphite has graphite ball, graphite powder, graphite grain, graphite sand, according to the fixed carbon content is divided into 25, 35, 45, 55, 65, 70, 75, 78, 80, 83, 85, 88 a total of 12 grades.Specifications are :100 mesh, 200 mesh, 325 mesh, 800 mesh, 1200 mesh, 2000 mesh, 4000 mesh, 5000 mesh, 8000 mesh, 10000 mesh, 12000 mesh and other models.
The main uses of graphite powder are as follows:
(1) Graphite powder has good lubrication effect, which improves the compactness and fluidity of the sand, decreases the air permeability, reduces the ejection resistance of the sample, and improves the mold drawing performance of the sand.
(2) the foundry industry, the graphite coated on the surface of the solid, can form a smooth film adhesion strong, this is the appearance of graphite good coating performance, it is a good casting remover casting commonly used graphite powder have crystalline graphite powder (flake graphite powder) or aphanitic graphite powder (earthy graphite powder, also known as microcrystalline toner, black lead powder).
Henan star production of graphite powder specifications complete, quality assurance, stable price, welcome to buy!
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