High Purity Black Silicon Carbide / SIC 90

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
25 m.t.
Supply Capability:
3000 m.t./month

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Product Description:

High Purity SiC for Refractory Black Color

High Purity Black Silicon Carbide / SIC 90

 

Product name

Silicon Carbide (Carborundum ) / SiC / Black Silicon   Carbide / Green Carbide Silica

Model No

BA-20#

Brand name

BA,CHINA

 

 

 

 

Description

Black Silicon   Carbide is produced with high   temperature in a electric resistant furnace from a mixture of quartz sand and   petroleum coke.

 

Its hardness is between that of fused   alumina and synthetic diamond and mechancial intensity of it is also greater   than that of fused alumina. It is brittle and very sharp and  has a   certain degree of electrical and heat conductivity.

 

Black silicon carbide is typically used for   working on cast iron ,non-ferrous metals, stone, leather, rubber, and other   materials which requires sharp cutting characteristics. The mineral is also   used widely as a refractory material and metallurgical additive. 

 

 

 

 

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/m³

·           Mircohardness:2840-3320g/mm2

·           Mosh   hardness: 9.15

·           Package:   25\kg

·           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, 40bags per pallet, or according customers' request

Price term

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

Payment term

100% T/T in advance(negotiation)

 

 

 


 

Product Pictures:

 

High Purity Black Silicon Carbide / SIC 90

High Purity Black Silicon Carbide / SIC 90High Purity Black Silicon Carbide / SIC 90

High Purity Black Silicon Carbide / SIC 90


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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 are the technical requirements for refractories?
To put it simply, physical indicators are pores, volume density, pressure resistance, slag resistance, thermal shock resistance, foot expansion coefficient, thermal conductivity, oxidation resistance and so on. If it is castable, the indicators are mobility, water rate, setting time, and anti bending strength. If it is coating mix, the bonding strength should be checked. Chemical indicators are loss of ignition and the content of aluminum, magnesium, silicon, calcium, chromium, titanium and carbon.
Q:What is refractory?
Refractory materials are widely used in metallurgy, machinery manufacturing, chemical industry, petroleum, power and other industrial fields. It is an inorganic nonmetallic material mostly used in metallurgical industry with the minimum refractoriness of 1580 ℃, able to resist high temperature without softening (annealing). It accounts for 50% to 60% in total output. Refractoriness refers to refractory's ability to resist fire.
Q:Who knows about the types of Dalian thermal insulating and refractory materials?
There are many Dalian thermal insulation materials, which can be divided into organic and inorganic thermal insulation materials. Materials include inorganic thermal insulation materials, polyfoam, mineral wool products, foam glass, expanded perlite insulation products, gelatine powder EPS grain heat insulating slurry, sprayed mineral wool, thermal insulation product of foam cements, and vacuum thermal insulation board.
Q:What refractory material lead smelting furnace needs?
Q:whether the fire resistant level of aerated concrete building blocks can reach the grade one?
Aerated concrete building blocks is made by calcareous materials (such as cement, lime) and siliceous material (such as sand, fly ash, slag), adding aluminum powder ingredients as filling agent, by mixing with water, casting molding, gas - expansion, raising the pre-cut, and then the high-pressure steam curing of silicate building blocks. when aerated concrete is at the temperatures below 600 ℃, the compressive strength will be increased slightly, when the temperature is at about 600 ℃, the compressive strength is close to the compressive strength at normal temperature, so the aerated concrete, as building materials, the fire performance can meet the national fireproffing safety standards level.
Q:What's the refractory material?
According to the product shape, it can be divided into two kinds, that is shaped refractory and unshaped refractory. According to the chemical property, it can be classified into three categories, that is acid refractory, neutral refractory and basic refractory, among which basic refractory and neutral refractory are commonly used, such as the basic refractory of magnesia carbon brick, fired magnesite brick, magnesite-chrome brick, magnesia-calcium brick, and the neutral refractory of high alumina brick, corundum brick, clay brick. Unshaped refractory includes: castable, ramming mass, gunning mix, coating material, dry vibration material, etc.!
Q:The mechanism and function of antioxidants in carbon containing composite refractories are briefly described.
3, the selection principle of antioxidant and its thermodynamic and kinetic mechanism31 selection principles of antioxidants:(1) according to the thermodynamic data and the conditions of use, the possible condensed phase and the vapor pressure of each gas phase are determined;(2) compare the size of each coacervation and oxygen affinity, and the possibility of reaction with CO.(3) the influence of various reactions on the microstructure of brick was analyzed.The thermodynamic and kinetic mechanism of 3.2 antioxidantsFrom a thermodynamic point of view, at the operating temperature, the additives or additives that react with carbon react with oxygen more closely than carbon and oxygen, giving priority to carbon oxidation, thus protecting carbon;From the analysis of dynamics point of view: the compound additive with oxygen and carbon monoxide reaction changed the microstructure of carbon composite refractory materials, such as increasing the density, blocked pores, hinder the diffusion of oxygen and reaction products.
Q:what is the requirements of roofing insulation materials fire rating?
The fireproofing requirements of architectural design are regulated by architectural design fire safety rules, roofing insulation material only has the requirements of materials combustion performance, namely non-combustible material. No fire rating requirements.
Q:Graphite and other carbon materials may be oxidized to CO or CO2 at high temperatures. But why can they be refractories?
There is no contradiction for this. Any substance can be combustible, but different materials have different ignition points.There are many types of graphite. Pyrolytic graphite has a much lower ignition point. Therefore, as long as it reaches at a certain temperature, it can convert into graphite. Mostly, in practical applications (such as brake pads will add a certain amount of graphite), graphite is required to have refractoriness of below 1000 ℃. Graphite can serves as both the combustible and refractory material. So, it can be used as a fire-resistant and high-temperature-resisrant material because graphite (lamellar graphite) has a ignition point of at least 3000 degrees in an oxygen free condition. The above information is for reference only and is offered by Xin Ruida Graphite Company.

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