ZHY Foundry Co., Ltd., was founded in 2004, Our group main products:energy saving and environmental protection white fused alumina, Vice-whtie fused alumina,Composite Fused Alumina,brown fused alumina,Black Fused Alumina,Semi-Fribale Fused Alumina,Mono-Crystalline Aluminum Oxide,Micro-Crystalline Fused Alumina,Zirconia Fused Alumina,Compact Fused Alumina,Fused Mullite,Fused Magnesium Aluminum Spinel,silicon carbide powder,Calcium Aluminate,Desulfurizer,Deoxidizer,Covering Flux,Slag-Iron Separation Agent,Slag-steel Separation Agent etc many of productions.

We put creditably first, insist by quality win, adhere to reasonable price, first-class service enterprise strategy. We can make the best to provide customers with high-class products and quality services.

Our R&D Composite Fused Alumina through the newest type smelting  industry technology,utilize the newest type Environmental protection and energy saving reductant,reuse the industrail waste,indeed actualize green,environmental protection,energy conservation,high efficiency in the corundom areas.

We are committed to the development and application of high technology and new materials,in response to the national policy of energy preservation and environmental protection.

Our products are all manufactured in accordance with ISO9001:2008 international standards, so you can feel at ease in purchasing and using them. Please feel free to contact us if you are in need of OEM parts or our other products. We believe that you will be satisfied with our products and services.

Grinding tool of white fused alumina is mainly used for fine grinding of hardened steel, alloy steel, as well as the screw thread and wheel gear. Grinding tool of white fused alumina is white and shiny after burning. Occasionally a small number of abrasives in the outer surface of molding are red because mold rust is not clean. After processing and shaping the red parts will not exist.

But sometimes grinding tool of white fused alumina will appear in red, yellow, gray. This color is not only on the surface of grinding tool, but also in the the internal part.
Although this grinding tool of white fused alumina with different colors has no obvious change on hardness and grinding performance, it will affect the appearance quality and commercialization of the products, which affects the economic benefit of the manufacturer.

The main mineral composition of white fused alumina is physical corundum.In the regulation of manufacturing white corundum abrasive, there are requests for the provisions of A12O3. At the same time it also limits the content of Na2O in alumina powder. Because the reaction between impurity Na2O and A12O3 will generate high sodium aluminate Na2O·11A12O3, which will make cutting grinding ability of the abrasive poorer. But high sodium aluminate had no effect on the colour of white corundum grinding tool.