• Black Silicon Carbide Raw Materials for Refractory System 1
  • Black Silicon Carbide Raw Materials for Refractory System 2
  • Black Silicon Carbide Raw Materials for Refractory System 3
Black Silicon Carbide Raw Materials for Refractory

Black Silicon Carbide Raw Materials for Refractory

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Specifications

Specifications
Black silicon carbide
1competitive price&good quality
2.SiC: 98.5%min;
3.high temperature refractoriess

Specifications

Black silicon carbide 1competitive price&good quality 2.SiC: 98.5%min; 3.high temperature refractoriess

Black silicon carbide

Introduction

Black silicon carbide, a kind of man-made material that is made from quartz sand, petroleum coke. The material goes through high temperature electric resistance type furance and cooling.

Excellent raw material makes good hardness and toughness,high efficiency and durability.

Specification

  • Stable chemical property

  • Suitable hardness and brittleness;

  • Good cutting shape

  • Competitive price with quick delivery time;

Physical Index

  • Crystal System: Hexagonal;

  • Color: black

  • True density: 3.10g/cm3

  • Mohs hardness: 9.1

  • Mircor hardness: HV3100-3200

Chemical Compostion

Grit Size           SiC                    F.C                 Fe2O3

  F24               98.71%            0.11%                0.21%

  F90               98.51%            0.15%                0.18%

  F150             98.48%            0.16%                 0.17%

Size Available

  • F12-F1200,P12-P2500;

  • 0-1mm,1-3mm,5-10mm,200-0meh;

  • Other size is available as required;

Application

  • Grinding non-ferrous material, stone, leather, rubber, and other hard metals;

  • Grinding wheels, abrasive belts;

  • As main material of deoxidier;

  • Founctional ceramic; Metallurgy;

  • High advanced refractory material

Packing: 25kg/bag,1000kg/big bag;

             1000kg/big bag; Or with one pallet packing;

             other packing is allowed as required;

Payment: T/T, L/C, D/A,D/P;


Q:What do RH and DH stand for in refractories?
DH :For human intelligence (diameter, board of directors). )
Q:What is the mechanism of the errosion of the iron to the refractories?
For example, the effect of the iron oxide: Mo corundum given temperature Fe2O3 solid solubility limit of the solid solution formed of corundum stone high solubility than the solid solution Mo Mo corundum lattice shape so Fe2O3Al2O3-SiO2-based material starts melting temperature of the system or the content of Al2O3 and Al2O3 / SiO2 ratio off Al2O3 / SiO2 & lt; 2.55 starting melting temperature of 1380 ℃ when Al2O3 / SiO2 & gt; 2.55 start melting temperature is increased 1460 ℃ and with its Al2O3 content increased gradually to increase the original atmosphere Fe2O3 original FeO off the solvent into the glass phase and the system starts melting temperature drops do not fall to 1240 ℃ 1380 ℃. Lower the melting point, increase the erosion, and reduce the life span.
Q:Who knows about the fire endurance of grade C fire doors?
It can be classified according to the fire endurance and thermal insulation performance: The fire endurance of grade A fire doors is not less than 1.5 hours; that of grade B fire doors is not less than 1.0 hours; and that of grade C fire doors is not less than 0.5 hours. I hope my answer can help you.
Q:Does anyone know the difference between refractory and thermal insulation material?
I will give you a relatively simple analysis. Refractory can bear above 1,200 degrees centigrade, but some refractory is not insulated. For example, refractory brick can be directly in contact with heat source, but it has little insulation effect. Refractory includes ceramic fiber, high silica and so on. And they can be also insulated. But insulation effect is not so good as insulation material. Insulation material generally can bear below 800 degrees centigrade, and it is large in thermal resistance, low in heat conductivity coefficient and high in porosity factor, thus reducing heat loss. Briefly speaking, insulated material is to store most heat, and just let a small quantity of heat run of through air, thus insulating heat. Refractory includes glass fiber, rock wool, aerogel blanket and so on.
Q:What's the refractory material?
Frequently used refractory material: AZS brick, corundum brick, direct-bonded?magnesia-chrome?bricks, carborundum brick, silicon nitride bonded silicon carbide brick, nonoxide refractories like nitride, silicide, sulfide, boride and carbide, and oxide refractories like calcium oxide, chromium hemitrioxide, alumina, magnesium oxide and beryllia. In general, the refractory material include the above. For more information, you can ask for specific advice.
Q:Which brand of thermal insulating refractory is good?
Brands of thermal insulating refractory: 1, Armaflex(German brand). Manufacturer: Armacell thermal insulation materials (Guangzhou) Co., Ltd, Armacell thermal insulation materials (Suzhou) Co., Ltd. 2, Durkflex (American brand) Manufacturer: Durkee (Guangzhou) thermal?insulation?material Co., Ltd. Durkee (Wuhan) thermal?insulation?material Co., Ltd. 3, Aeroflex (Thailand Brand) Manufacturer: Aeroflex Polymer Technology (Shanghai) Co., Ltd.
Q:What's the requirements of fire-fighting criteria of heat insulating material?
Specific provisions go as the following article 8: roof grassroots adopted duration of fire resistance is the non-combustible component that shouldn't less than 1.00 h's. Its roof insulation materials should not be below B2; Otherwise, the combustion performance of insulating material should not be below the B1 level. Article 9: The junction of the roof and wall, the insulation layer around the opening part of roof should use the grade A thermal insulation material to set level fire-fighting belt that width is not less than 500 mm. Article 10: the roof waterproof membrane or flammable insulation layer should adopt incombustible material to cover.
Q:What are the applications of refractory in petroleum?
It can be used in chemical filler. For general process, some insulation parts also need to use refractory.
Q:What are the use of fire-resistant material and admixture?
I am engaged in admixture and thus familiar. Welcome to exchange!
Q:Fire rating of decoration materials
code for fire protection design of buildings

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