Black Silicon Carbide 3.5max

Shape:Lump/Powder Shape
Silicon Carbide Powder For Refractory

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Description

Silicon carbide(silicon carbide block), also known as emery or refractory sand, has a chemical formula of SiC and is a very widely used inorganic substance. There are two types of silicon carbide obtained by industrial production, namely black silicon carbide and green silicon carbide.

The silicon carbide production equipment uses a dedicated silicon carbide electric furnace. The power of the electric furnace is turned on and the silicon carbide production is started. When the center of the furnace temperature reaches 2500℃~2700℃ and the charge temperature reaches 1450℃, the raw materials react to produce silicon carbide and release CO. When the charge temperature is ≥2600℃, the already produced SiC will be partially decomposed, but the decomposed Si will form SiC with the C in the charge.

Specification

Grit	Sic	F.C.	Fe2O3
F12-F90	≥98.50	<0.20	≤0.60
F100-F150	≥98.00	<0.30	≤0.80
F180-F220	≥97.00	<0.30	≤1.20
F230-F400	≥96.00	<0.40	≤1.20
F500-F800	≥95.00	<0.40	≤1.20

Black Silicon Carbide 3.5max

Since the content of silicon carbide in nature is very small, the silicon carbide block is mostly industrially manufactured. The production of silicon carbide blocks uses quartz and petroleum coke as raw materials, and the raw materials are ground into a suitable particle size through processes such as grinding. After grinding the raw materials according to a certain ratio, they are put into an electric furnace for high-temperature heating to make a silicon carbide block. In order to adjust the gas permeability of the charge, it is necessary to add an appropriate amount of wood chips during the smelting process, and an appropriate amount of salt is also required to prepare green silicon carbide.