$High Purity Black Silicon Carbide - Raw Materials for Refractory (Made in China) System 1$
$High Purity Black Silicon Carbide - Raw Materials for Refractory (Made in China) System 2$

$High Purity Black Silicon Carbide - Raw Materials for Refractory (Made in China)$

$High Purity Black Silicon Carbide - Raw Materials for Refractory (Made in China) System 1$

$High Purity Black Silicon Carbide - Raw Materials for Refractory (Made in China) System 2$

High Purity Black Silicon Carbide - Raw Materials for Refractory (Made in China)

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 5000 m.t./month

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Packaging & Delivery

Packaging Details:	1) 25kg woven bag,40 woven bags/jumbo bag. 2) 25kg woven bag,40 woven bags/pallet 3) 25kg paper bag,40 paper bags/pallet 4) 25kg paper bag,40 paper bags/paper box
Delivery Detail:	10DAYS AFTER CONFIRMATION ORDER

Specifications

F220 High purity SiC
Professional manufacturer
Passed REACH ,ISO-9001:2008

We provide the best quality C in china with high tech testing instrument gurantee the quality.

Grinding Black Silicon Carbide

Black silicon carbide is produced at high temperature in an electric resistance type furnace with quarts sand and petroleum coke as its main raw materials. It is used for making bonded and coated abrasive tools, grinding metal and non-metal materials of lower tensile strength, such as gray cast iron yellow bronze,aluminum, stone, leather, rubber, etc.

Chemical Compsition (%)

Grit	Sic	F.C.	Fe2O3
F12-F90	≥98.50	<0.20< span="">	≤0.60
F100-F150	≥98.00	<0.30< span="">	≤0.80
F180-F220	≥97.00	<0.30< span="">	≤1.20
F230-F400	≥96.00	<0.40< span="">	≤1.20
F500-F800	≥95.00	<0.40< span="">	≤1.20
F1000-F1200	≥93.00	<0.50< span="">	≤1.20
P12-P90	≥98.50	<0.20< span="">	≤0.60
P100-P150	≥98.00	<0.30< span="">	≤0.80
P180-P220	≥97.00	<0.30< span="">	≤1.20
P230-P500	≥96.00	<0.40< span="">	≤1.20
P600-P1500	≥95.00	<0.40< span="">	≤1.20
P2000-P2500	≥93.00	<0.50< span="">	≤1.20

Physical Index

Grits	Bulk Density g/cm3	High Density g/cm3	Grits	Bulk Density g/cm3	High Density g/cm3
F16 ~ F24	1.42~1.50	≥1.50	F100	1.36~1.45	≥1.45
F30 ~ F40	1.42~1.50	≥1.50	F120	1.34~1.43	≥1.43
F46 ~ F54	1.43~1.51	≥1.51	F150	1.32~1.41	≥1.41
F60 ~ F70	1.40~1.48	≥1.48	F180	1.31~1.40	≥1.40
F80	1.38~1.46	≥1.46	F220	1.31~1.40	≥1.40
F90	1.38~1.45	≥1.45

Size Available

F12-F1200,P12-P2500

0-1mm,1-3mm,6/10, 10/18, ,200mesh,325mesh

Other special spec. could be supplied as required.

Black Silicon Carbide with High Purity SiC made in China

Q: What are the fire endurance requirements of class A fire resistant door ?: The fire endurance of class A fire resistance door is 1.5H, but also depends on the product quality. The filling material of class A, B, C fire doors is the same, new fireproofing material-- perlite. The difference is their thickness. The general structure is: surface panel, fireproof?board framework (filled with perlite) fireproof?board panel. !

Q: The effect of a high content of water in liquid resin exerted on refractory material?: For one thing, Substandard whiteness, transportation, low quality and the storage of refractory material may account for this. For another, a high content of moisture reduced the performance of refractory material. A high content of moisture is equal to buy water with same money in terms of trade settlement. Based on this, we can’t consider the super-standard water content from a single aspect, because the water content in refractory material is definitely super-standard, and another problem is particle size. Many people hold the idea that excessive amount of water content may revive its original performance, but it tends to have influenced the quality of refractory material.

Q: How many refractory materials does the annual output of 1 million tons of coke oven require?: The production of dense synthetic Magnesium Oxide requires many steps, briefly summarized as follows:(1) Mgcl2+Ca, Mg (OH) 2, =Mg (OH) 2+CaCl2Sea salt or brine, dolomite, magnesium hydroxide, residual salt(2) Mg (OH) 2 Mg0 (low density);(3) MgO, Mgo (compact)The resulting compact Magnesium Oxide generally has a purity of up to 95%-99%, depending on the manufacturing process and the final application requirements. As shown above, Magnesium Oxide can be obtained from sea water and slaked lime. The density of the final product is through the high temperature roasting in shaft furnace and the large area obtained by calcination, and the mechanical compaction. Through the pre sintered refractory material to fundamentally eliminate the permanent contraction or extension is extremely important, it is obviously, because we cannot expect excessive contraction or extension in the use of the materials can be used to store the proper degree of molten metal or slag. The production of magnesium oxygen throughout the world (Fang Meishi) large factories in the United States, Michigan by brine well production, and by the sea water production Magnesium Oxide factory is located in Florida, Texas, California and Maryland.

Q: What are the construction measures of refractory material in winter? Please descriptive briefly.: The temperature is low in winter, so refractory bulk materials should be stirred evenly on time to avoid freezing.

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: What are the filling refractories in door leaf of class A fire resistant door?: Most manufacturers use perlite board. The price is appropriate.

Q: What are the characteristics of the carbon composite refractories?: The features of carbon composite refractories: 1. It is with an aggressive high thermal shock resistance 2. Good resistance to molten steel and slag

Q: who knows how to classify the fire resistant levels of fireproofing material?: Grade of fireproofing material: Class A: Incombustible building material, almost without burning. class A1: Non-combustible, no open flame,class A2: Non-combustible,it needs to measure smoke and be qualified. Class B1: Nonflammable building material: Nonflammable materials have good flame resistance function. when it contacts open fire or is under high temperature, it's difficult to burn and be spreading rapidly, and will stop burn after removing the combustion?source. Class B2: Combustible?building?materials: Combustible materials have good flame resistance function. when it contacts open fire or is put in the air at high temperature, it will immediately burst into flames, and easily result in the spreading of fire, such as wooden column, timber roof truss, timber beam, wooden stairs, etc. Class B3: Inflammability building materials, without any flame resisting effects, easy to burn, and has large danger of fire disaster.

Q: Who knows about ranking rules of fireproofing thermal insulation materials for exterior wall?: You can try the following way to give a brief introduction of the fire?rating classification of external wall thermal insulation materials. 1. the building materials are divided into following categories in terms of combustion performance according to the national standard of GB8624-97. A-level： Incombustible building material: materials almost don't burn. B1-level: nonflammable building material: these materials are good at resisting flame. It is difficult for them to burst into fire when coming across open fire in the air or at high temperature. It will not quickly get wilder and when the fire source removes, it will be extinguished immediately. B2-level: Combustible building material: combustible building materials can play a certain role in flame resistance. It will immediately burst into flames when coming across open fire or at high temperature, and will lead to fire spreading, such as wooden column, timber roof truss and timber beam as well as stairs. B3-level: Inflammable building material: Inflammable building materials are highly flammable with no flame retardant ability. The fire risk is high. 2.The exterior wall thermal insulation materials can be classified according to fire rating. 1). Insulation materials with A-level combustion performance: rock wool, glass wool, foam glass, foamed ceramics, foam cement, hole-closed perlite, etc. 2). The insulation materials with B1-level combustion performance: specially-treated extruded polystyrene board(XPS)/ specially-treated polyurethane(PU), phenolic aldehydegelatine powder polyphenyl granule,etc. 3). Insulation materials with B2-level combustion performance: molding polystyrene board(EPS), extruded polystyrene board(XPS), polyurethane(PU), polyethylene(PE), etc.

Q: Can polystyrene foam color steel plate be used as decorative fireproofing material ?: As far as I am concerned, polystyrene foam color steel plate cannot be used as decorative fireproofing material. Because polystyrene flame retardant and non-flame retardant of the points, from the fire retardant is generally self-extinguishing. Polystyrene is the polymer synthesized by styrene?monomer through free radicals polycondensation reaction. It is a transparent thermoplastic?plastic. With above 100 ℃ glass transfering temperature,it is often used to make a variety of disposable container and disposable foam lunch box which have to withstand the boiling water temperature.

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