SiC Mechanical Seal
Silicon carbide products are classified into many kinds according to different application environment. It is generally used more mechanically. For example, silicon carbide is an ideal material for silicon carbide mechanical seal because of its good chemical corrosion resistance, high strength, high hardness, good wear resistance, small friction coefficient and high temperature resistance.
Silicon Carbide Seal Material
Silicon carbide (SiC) is also known as carborundum, which is made of quartz sand, petroleum coke (or coal coke), wood chips (which need to be added when producing green silicon carbide) and so on. Silicon carbide also has a rare mineral in nature, mulberry. In contemporary C, N, B and other non-oxide high technology refractory raw materials, silicon carbide is one of the most widely used and economical materials, which can be called gold steel sand or refractory sand. At present, China's industrial production of silicon carbide is divided into black silicon carbide and green silicon carbide, both of which are hexagonal crystals with a proportion of 3.20 ~ 3.25 and microhardness of 2840 ~ 3320kg/mm2.
Types of silicon carbide mechanical sealrings
SICsealrings can be divided into static ring, moving ring, flat ring and so on. SiC silicon cab be made into various carbide products, such as silicon carbide, silicon carbide, silicon carbide ring and so on, according to the special requirements of customers. It can also be used in combination with graphite material, and its friction coefficient is smaller than alumina ceramic and hard alloy, so it can be used in high PV value, especially in the condition of strong acid and strong alkali.
The following tables introduce R-SiC and S-SiC.
|
properties |
R-SiC |
S-SiC |
|
Porosity (%) |
≤0.3 |
≤0.2 |
|
Density (g/cm3) |
||
|
Hardness |
110~125 (HS) |
2800 (kg/mm2) |
|
Elastic Modulus (Gpa) |
≥400 |
≥410 |
|
SiC Content (%) |
≥85% |
≥99% |
|
Si Content (%) |
≤15% |
|
|
Bend Strength (Mpa) |
≥350 |
450 |
|
Compressive Strength (kg/mm2) |
≥2200 |
3900 |
|
Coefficient of heat expansion (1/℃) |
||
|
Heat resistance (in the atmosphere)(℃) |
1300 |
1600 |
|
Test Environment |
Corrosive Weight Loss (mg/cm2yr) |
||
|
Concentration Reagent (wt%) |
Temperature |
R-SIC |
S-SIC |
|
(℃) |
|||
|
98%H2S04 |
100 |
50 |
|
|
50% NaOH |
100 |
1000 |
|
|
53% HF |
100 |
7 |
|
|
85% H3P04 |
100 |
8 |
|
|
70% HNO3 |
100 |
||
|
45% KOH |
100 |
1000 |
|
|
25% HCL |
100 |
||
|
10% HF plus |
25 |
1000 |
|
|
57% HNO3 |
|||
Test Environment: 125-300 hours of immerged testing, continuously stirred
As a China pump supplier, we will attempt to produce more high quality products for customers.
More information about Hangzhou Sealcon Fluid Machinery Co., Ltd, please visit our website.
在线联系供应商
Other supplier products
 |
Stainless Steel Seal | Stainless Steel is short for stainless acid resistant steel. It is called Stainless Steel with weak corrosive medium or Stainless Steel, such as ai... |
 |
Stainless Steel Seal | Stainless Steel is short for stainless acid resistant steel. It is called Stainless Steel with weak corrosive medium or Stainless Steel, such as ai... |
 |
MECHANICAL SEALS | What are mechanical seals (End-face Mechianical Seal)? Also known as a face seal, the mechanical seal is a rotary machine shaft seal device, refers... |
 |
Types of PTFE Wedge Mechanical Seals | Hangzhou Sealcon Fluid Machinery Co., Ltd is a professional wedge gasket suppliersfor PTFE Wedge mechanical seals to suit all the major pump equipm... |
 |
Elastomer Rubber Bellow Mechanical Seals | Cost effective and mass-produced Mechanical Seal with Rubber Bellow (elastomeric bellow)Designed by single or double, Hangzhou SEALCON supply stand... |
Same products
 |
FKM RUBBER O RING | 卖方: Xingtai Oubei rubber & Plastic products Co., LTD | FKM RUBBER O RING Benefits High Temperature Stability Capable of continuous operation up t... |
 |
Water Seal，Oil Seal | 卖方: Xingtai Oubei rubber & Plastic products Co., LTD | Water Seal，Oil Seal If you're experiencing leaks in your Samsung or LG washing machine, the ... |
 |
Ec End Cap Covers Oil Seals | 卖方: Xingtai Oubei rubber & Plastic products Co., LTD | Ec End Cap Covers Oil Seals Product use: mainly used in construction machinery, injection ... |
 |
o rings manufacturer | 卖方: Xingtai Oubei rubber & Plastic products Co., LTD | o rings manufacturer O-RINGS & O-RING SETS At , we offer a comprehensive range of O-r... |
 |
auto oil seal | 卖方: Xingtai Oubei rubber & Plastic products Co., LTD | auto oil seal At , we specialize in manufacturing and supplying auto oil seals that are en... |
