Calcined Alumina At High Temperature

Calcined α-alumina white powder, uniform particle size, easy to disperse, chemical stability, high temperature shrinkage property moderate, α-alumina has good sintering performance. The α-alumina products are the basic raw materials for the production of heat-resistant, wear-resistant and corrosion-resistant products, such as high aluminum refractory materials, α-alumina can be used for high strength ceramic products, automotive spark plugs, advanced grinding materials, etc. Welcome to inquire about calcining α-alumina.

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Description

Products Introduction

Calcined Alumina At High Temperature has a small particle size of about 1μm. It has good grindability and high sintering activity. It is easy to be crushed into fine powder with an average particle size of about 1μm. This high temperature for precision alumina ceramics, rolls. It can also be used as filler and insulation material for electrical components. So high temperature alumina than ordinary alumina on the requirements of the data are relatively high. It has the characteristics of high density, low porosity, low permeability and strong fire resistance. It is generally used in refractory materials or abrasives. Plate corundum is made by pelleting calcined aluminum oxide and heating it in vertical kiln to below its melting point, so it has the characteristics of low porosity, high density, low permeability and high fire resistance, which is especially suitable for material resistant applications.

Main Application

1. Due to the excellent dielectric properties of high temperature calcined alumina, this product will be used as a variety of electrical subgrade plate, tube holder, shell, radar radome and so on in the electronics industry.

2, high temperature calcined alumina also has high temperature resistance, corrosion resistance, high strength and other advantages, it can be used for steel production of sliding gate, smelting high purity metal or growth of single crystal crucible, it can also be used for a variety of high temperature kiln structural parts (furnace cavity, furnace tube), physical and chemical vessels, aerospace spark plug, heat resistance and oxidation resistance coating, glass drawing crucible, etc.

3, this product also has insulation, so it can also be used as thermocouple wire tube and protective tube, atomic reactor insulation porcelain, and other high temperature insulation parts.
4, compared with ordinary alumina, high temperature calcined alumina has high hardness and high strength performance, for mechanical parts, a variety of molds (wire drawing die, extrusion pencil lead mold, etc.), tools, abrading tools, armor protective materials, human joints, etc.
5, high temperature calcined alumina can also be used as laser original, instrument shaft bowl, bearing, decoration, transparent products can also be used as lamp, microwave flow hood.