| Customization: | Available |
|---|---|
| Feature: | Good Mechanical Strength, Good Thermal Insulation Performance, High-Temperature Resistant, Low Thermal Conductivity |
| Production Process: | Extrusion Method |
|
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Nitride bonded silicon carbide brick is a refractory product with magnesium oxide (MgO) and chromium trioxide (Cr2O3) as the main components, and perovskite and spinel as the main mineral components. This type of brick has high refractoriness, high temperature strength, strong resistance to alkaline slag, excellent thermal stability, and certain adaptability to acid slag. The main raw materials for manufacturing silicon nitride bricks are sintered magnesia and chromite. The purity of the magnesia raw material should be as high as possible. The requirements of the chemical composition of chromite are: Cr2O330-45%, CaO not more than 1.0-1.5%. The production process of fired silicon nitride bricks is similar to that of magnesia bricks. In order to eliminate bricks in the firing process due to MgO and Cr2O3, Al2O3 or directly combined with silicon nitride bricks.
Nitride bonded silicon carbide bricks have excellent anti-erosion ability, high temperature strength, good chemical stability, high service temperature and strong wear resistance, it is an ideal refractory material used as a lining of a vulcanized bed boiler.
|
Apparent porosity |
% |
16 |
|
Bulk density |
g/cm3 |
2.65 |
|
Normal temperature compressive strength |
MPa |
180 |
|
High temperature flexural strength(1400ºCX0.5h) |
MPa |
50 |
|
Thermal Conductivity(1000ºC) |
W/m•k |
18 |
|
Load softening temperature |
ºC |
T0.6%>1700ºC |
|
Thermal expansion coefficient(20-1000ºC) |
% |
4.0×10-6/ºC |
|
SiC |
% |
73 |
|
Si3N4 |
% |
22 |
A1 : For each production processing, we have complete QC system for the chemical composition and Physical properties. After production, all the goods will be tested, and the quality certificate will be shipped along with goods.
Q2 : What is your lead time?
A2 : It usually needs about 15- 20 days after receiving the PO.
Q3 : Do you provide free samples?
A3 : Yes, free samples are available, generlly speaking, the buyer shall bear all the delivery cost.
Q4 : What is your payments terms?
A4 : We can accept 30% deposit, 70% balance to be against the BL copy or by LC, or other payment terms.
Q5 : Can we visit your company?
A5 : Yes, for sure, you are welcome to visit JUCOS company.
Q6 : What standards do you have?
A6 : Our products meet the standards, such as ASTM, ASME, AMS, DIN, JIS etc.
The third party testing is all available for us.
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