Abrasive Black Silicon Carbide/Carborundum Grits

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
2000 m.t./month

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Product Description

  

Product name

Abrasive black silicon carbide/Carborundum

Model No

BA-#20 

Brand name

CNBM

 

 

 

 

Description

  • Black silicon carbide is produced in an electric-resistance type furnace through fusing quarts sand and petroleum coke and high quality silica with high temperature. Its hardness is between fused alumina and diamond's. 

  • higher mechanical intensity than fused alumina's. 

  • It is brittle and sharp and has electrical and heat conductivity in some degree. Black silicon carbide, metallic, sic≥95%, stronger than green silicon carbide but softer than green silicon carbide, is mainly used for grinding of cast iron and non-metallic materials.

 

 

 

 

Advantage

  1. Raw materials are of high quality: pure silicon carbide, guaranteeing the products’ good quality.

  2. Sharp knife-edge, having cutting function.

  3. Centralized and uniform particle size distribution

  4. Electrical conductivity

  5. Heat conductivity

  6. Chemical stability

  7. High thermal conductivity

  8. Low expansion coefficient

  9. Good abrasion-resistance

 

 

 

 

 

Parameter

  • The shape: polygon

  • Color: black

  • Proportion:3:2

  • Bulk density:1.45-1.56 g/

  • Mircohardness:2840-3320g/mm2

  • Mosh hardness: 9.15

  • Package: 25\kg

  • Composition%:SiO≥92.5%,Free C≤0.3%,Fe2O3≤1.2%

 

Usage

  • Black silicon carbide, sic≥98.5%,its toughness is better than green silicon carbide.

  • Mostly for processing low tensile strength of the materials, such as glass, ceramics, stone, refractory materials, cast iron and non-ferrous metals.

Shipping way

By sea, by air, by express

Delivery time

Within 7 days from the receipt of payment

Loading seaport

Shenzhen

Package

25kg/bag with woven bag

Price term

FOB Shenzhen, CFR,, CIF, FCA, EXW ect

Payment term

100% T/T in advance(negotiation)

 Abrasive Black Silicon Carbide/Carborundum Grits


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Q:I wanna ask what are the acidic refractories?
(1) silica brick with stronge acidity, unshaped silicious refractory, quartz glass and fused silica combined products; (2) semi-silica refractory with moderate acidity and pyrophyllite refractory; (3) clay-based refractory with weak acidity.
Q:What defect does fused cast refractories have ?
In glass production, in addition to refractory as a building material and consider its durability, we still must attach great importance to its influence on glass quality. In such cases, the impact on the quality of glass is mainly the defects that eroded down refractory materials mixed in the glass, thus being prodeced of grass products. Defects are mainly foreign body defects such as sand, knot and wave reinforcement. What may directly affect the quality of glass are the wall brick and brick kiln bottom.
Q:Who knows the fire resistant level of the rock wool color plate?
The rock wool color steel rock wool board is used in a area of high ​​fire safety requirements. According to "interior decoration of buildings for fire protection design", the color steel rock wool board belongd to level A. Its life is more than 15 years and still can be used when the temperature is up to about 700 ℃, with maximum fireproofing hour of six hours. And the rock wool color plate is a environmentally friendly material, the preferred material in the construction industry .
Q:Does the aluminum silicate thermal insulation material fireproof?
it can be fireproof and has a strong fireproof performance.
Q:What is the role of adding chromium oxide green in unshaped refractory materials
Generally, less is added in corundum or corundum spinel refractory material, but it can significantly improve the material performance such as high temperature strength, erosion resistance, thermal and shock stability, etc.
Q:What is fire retardant coating mainly used for?
The functions of refractory coating are as follows: 1. Non-intumescent fire retardant coating is mainly used for the fireproofing of wood, fiber board and other materials, and it is used in the surfaces of wood truss, roof, doors, windows and etc. Second, the intumescent fire retardant coating can be divided into non-toxic intumescent fire retardant coating, expansible fire retardant coating emulsions, solvent-based fire retardant coating. 3. Non-toxic intumescent fire retardant coating can be used to protect cables, polyethylene pipes and insulation board. 4, The expansible fire retardant coating emulsion and solvent-based fire retardant coating can be used for fireproofing of buildings, electricity power, and cables. 5. New fire retardant coating: Transparent fire retardant coating, water-soluble intumescent fire retardant coating, fireproof emulsion paint, polyvinyl acetate emulsion fire retardant paint, water-soluble intumescent fire retardant paint drying at room temperature, fire insulation coating polyolefin fire retardant coating, modified high chloropolyethylene fire retardant paint, chlorinated rubber fire retardant coating, firewall coating, intumescent coatings, wire and cable fire retardant paint, new fire retardant coating, casting fire retardant coating and so on.
Q:How to calculate the thickness of choosing refractory? Such as steel ladle should choose what kind of refractory and using what thicknes?
The relative production is lower and material cost is higher, the lining of the refractory is thicker: 1, determine the weight of the refractory material according to the main structure of the bearing capacity, to prevent damage to equipment, fire-proof material damage after the surplus size and thickness of the thermal conductivity of refractory materials, the smaller the effective volume, production output, the cost of materials) to consider the selection of refractory material thickness. 3 from the point of usage (usage cycle, relative usage cycle is longer, because under the condition of invariable in the device's overall dimensions of the refractory lining thickness to determine several basic principles, according to the volume of the weight computation of refractories and refractory thickness, these items must be fully consider the pros and cons before decided. 2 according to maximum temperature that shell can withstand.
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:Who knows the new fireproof and thermal inuslation matertial?
Ceramic foam insulation board, XTP vacuum insulation panels and a variety of composite insulation panels, etc. Relatively speaking, the inorganic insulation board is a trend. In terms of the overall performance, the cost performance of the foam insulation board is higher. XTP has the best performance, but with a little trouble in construction. Because of the vacuum characteristics, transportation and installation process should be very careful.
Q:What are unshaped fire-resisitance materials?
Refractory castable, refractory plastic material, usually classified according to construction and manufacture method, unfired bricks precast block, refractory pressed into material, refractory cast material, refractory coating, refractory ramming material there are many classification methods

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