Gongyi Hongda Furnace Charge Co. LTD

Medium-high aluminum mashing material also known as neutral furnace lining material is the use of bauxite, electric roasting corundum, electromelt magnesium oxide, zirconium oxide and other refractory materials plus a variety of composite additives, according to the smelting temperature and materials are formulated in different groups. Neutral material has good thermal shock stability and volume stability, overcomes the defects of alkaline material crack-prone, is a new generation of furnace lining materials. Let's introduce high-aluminum mashing materials:
High aluminum batching is a semi-dry, loose refractory material in a beating manner. Particles and fine powders made of high aluminum are made by a certain level and added to the appropriate amount of a combination agent. It is characterized by poor liquidity, forming must be molded with mashing materials in order to obtain a dense structure. This bulk material can be used to construct the overall furnace lining of industrial kilns, only a wide range of materials high aluminum to make the ingredients usually using phosphoric acid or aluminum sulfate as a binding agent. The selected combination agent with phosphoric acid is that, in the storage process, due to the reaction of phosphoric acid and alumina material in the feed, the formation of insoluble aluminum precipitate of water and condensation hardening, loss of plasticity and difficult construction. Therefore, to extend the shelf life of the mashed material, you must add the appropriate amount of preservation agent to try to prevent or delay the occurrence of coagulation hardening. Usually choose the usual choice of oxalic acid as a preservation agent. High aluminum mashing material chemical stability good resistance to wash, wear and fall, heat is widely used in metallurgical building materials non-ferrous metal smelting chemical machinery and other manufacturing industries!