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.
Send product request
Other supplier products
 |
Rubber Seal | Rubber seal is one of the common base components in sealing device, and plays an important role in the leaking and sealing. It is composed of one o... |
 |
Double Cartridge Seals D13 | Replacement for: John crane SL Agitators Features: Pulp and paper plant Sulzer APP pumps Performance Capabilities of Double CartridgeSeals D... |
 |
Double Cartridge Seals D13 | Replacement for: John crane SL Agitators Features: Pulp and paper plant Sulzer APP pumps Performance Capabilities of Double CartridgeSeals D... |
 |
Pump Spare Parts | Pump body:including suction chamber and the pressure chamber,water pump spare partsSuction chamber:its function is to allow the liquid to flow even... |
 |
Flygt Mechanical Seals | Flygt mechanical seals are usually used in the Swedish ITT Flygt mixer and submersible sewage pumps. They are one of the essentialFlygt pumppartsfo... |
Same products
 |
Split Oil Seal | Seller: Xingtai Hongyu Sealing Technologies Co., Ltd | Split type skeleton oil sealis a kind of industrial seal, which is simply used to seal the medium... |
 |
oil seal kit | Seller: Xingtai Nok-Cn Metal Seal Manufacturing Co., Ltd. | oil seal kit is a collection of various Oil Seals and related components designed for specif... |
 |
High-Performance Valve Cover Gasket | Seller: Xingtai Nok-Cn Metal Seal Manufacturing Co., Ltd. | High-Performance Valve Cover Gasket Product Description: High-Performance Valve Cover Gasket... |
 |
freeze plug | Seller: Xingtai Nok-Cn Metal Seal Manufacturing Co., Ltd. | freeze plug We not only will try our best to offer excellent services to every customer, but... |
 |
Discover the Excellence of Bonded Seals | Seller: Xingtai Nok-Cn Metal Seal Manufacturing Co., Ltd. | Discover the Excellence of Bonded Seals Discover the Excellence of Bonded Seals Enhance you... |
