SSIC silicon carbide sealing ring
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Silicon carbide seal rings Definition - silicon carbide material, depending on the process, after a certain production methods, the production of a silicon carbide products. Its purpose - use is quite extensive, a variety of mechanical products can be applied to, depending on the specifications, the production of different types of products, and ultimately to play a role in sealing. How to develop silicon carbide seal ring market - depending on the product positioning market, according to market distribution brand. Prospects silicon carbide seal ring - prospects for development is still quite widely, in general, based on the current process, innovation, products more promising.
Feature
1. plasticity - as long as the silicon carbide material has a certain process, it may be compressed into various shapes of blank, then a second and can be processed, shaped into products that customers need.
2. corrosion resistance - silicon carbide seal ring may be in the acid environment, the sealing effect is not reduced.
3. abrasion resistance - silicon carbide seal ring through a certain finishing process, so to achieve high-precision flat and smooth, plus the wear resistance of silicon carbide, silicon carbide seal ring so you can use mutual friction. In high-temperature performance, wear performance is not reduced.
4. High temperature resistance - due to the material properties of silicon carbide, silicon carbide seal ring and therefore has a high temperature resistance, depending on the process, high temperature performance is not the same. The reaction sintered silicon carbide seal ring can be used at 1300 degrees without pressure sintered silicon carbide seal ring can reach 1600 degrees.
Here are some of the pressure sintered silicon carbide products, physical and chemical parameters:
medium | content | Causticity | |||||||
Atmospheric SIC | The reaction SIC WC | WC | AL2O3 | ZrO2 | Si3N4 | stainless steel | steel | ||
HNO3 nitric acid | 50% | A | A | C | A | A | C | C | C |
Hydrochloric acid HCI | 35% | A | A | C | A | A | C | C | A |
Sulfuric acid H2SO4 | 98% | A | A | C | A | A | C | C | A |
Hydrofluoric acid HFF | 40% | A | C | C | C | C | C | C | C |
Phosphoric acid H5PO4 215OC | 85% | C | C | C | C | C | C | C | C |
HNO3+HF | 20%+5% | A | C | C | C | C | C | C | C |
Sodium chlorate NaCIO | 10% | A | B | C | A | A | A | C | A |
Sodium hydroxide NaOHH | 50% | A | C | A | B | A | B | A | A |
Potassium hydroxide KOH | A | C | A | B | A | B | A | A | |
Acetic acid CH3COOHH | 80% | A | A | C | A | A | C | C | C |
Sodium sulfate + Na2CO3 + H2SO4 925OC
| A | A | C | A | A | C | C | B | |
Silica solution SIO2
| B | C | C | C | C | C | |||
Assessment Method: the specimen prior polishing, immersed in the test liquid (70OC) for 100 hours, the weight was measured and observed microstructure, weight reduction is calculated by the degree of corrosion was observed microstructure for corrosion to comprehensive judgments. | |||||||||
A level (corrosion): corrosion rate ≤0.125mm / ingredients in a small amount of corrosion observed slice | |||||||||
Level B (somewhat resistant): corrosion rate = 0.125-1.0mm / or annual corrosion rate ≤0.125mm / observe a large number of corrosion | |||||||||
Class C (resistant to corrosion): corrosion rate ≥1.0mm / or the main ingredient of Corrosion
Silicon carbide performance indicators
Index Name
| Atmospheric SiC | Reaction Bonded Silicon Carbide |
Purity (%) of silicon carbide | ＞ 97 | ＞90 |
Density (g / cm) | 3.06-3.15 | ＞3.05 |
Particle size (um) | 0.5-0.7 | 8-20 |
Hardness (HRA) | ≥90 | ≥90 |
Flexural Strength (MPa) | 400-580 | 350-450 |
Compressive strength (MPa) | 3900 | ＞2500 |
Fracture Strength (MPa) | 3.05-4.6 | 4.3 |
Elastic Modulus (GPa) | 380-410 | 420 |
Thermal conductivity | 102.6 | 35-110 |
Coefficient of thermal expansion (1 / ℃) | 4.02×10 | 4.3×10 |
Poisson's ratio | 0.14 | 0.15 |
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- Q:Do some machinery, bearings, wind power equipment, machine seals, agents? Are there any prospects for the next few years?
- Equipment manufacturing industry is China's manufacturing base in the next twenty years, the pillar of the world, all the development of this industry space is great, specific to a subdivision of the prospects?,
- Q:The cylinder seal includes what ah, I heard a small piston ring of YX2, D2, D2, dust 2, O ring 2, a total of 8 as a set of individual is D1, D2, dust 2, O ring 2 a total of 6 pieces a.
- Piston seal: piston seals (typically 2 U), piston guide rings (usually 1, located in the middle of the two piston seals), the piston at the end of the buffer;
- Q:Replacement seals, but it does not feel like a O ring, ask this solenoid valve seals what is the name, specifications how to express?
- Cage or sleeve is considered large differential pressure or high pressure or large caliber valve, is now more and more common, and can add a variety of
- Q:Men's motorcycle front left shock absorber oil leakage, do not change two seals?
- Generally, there is only one oil seal, in the middle part of the shock absorber, the inner pipe and the outer pipe,
- Q:Reasons affecting the tightness of cylinder
- 1, piston and cylinder clearance2, piston ring end clearance3 、 piston ring backlash4 cylinder cylindricity5, valve tightness
- Q:What is mechanical seal?Single mechanical seal? Double mechanical seal? What's the shaft seal?
- So in today's world, mechanical seal is the most important shaft seal in these equipment. The mechanical seal is also called the seal, in the relevant national standard is defined as: "by at least a pair of end faces perpendicular to the axis of rotation of the fluid pressure and the elasticity of compensation organizations (or magnetic) device and the role of the coordination of auxiliary seals to keep up with the relative sliding to prevent fluid leakage. "
- Q:What is the material of the sealing ring mostly? I know, only rubber, and any other material?
- Material applicationNBR NBR sealing ring: suitable for use in petroleum system, hydraulic oil, glycol hydraulic oil, two ester lubricating oil, gasoline, water, silicon grease, silicone oil and other media. It is the most widely used and lowest cost rubber seal at present. Not suitable for polar solvents such as ketones, ozone, nitro hydrocarbons, MEK and chloroform. The general use temperature range is -40~120 degrees centigrade.
- Q:Does the PTFE seal contain plasticizer? Does the silicone seal require temperature during use?
- Silicone rubber is much better than ordinary rubber in heat resistance. It can be used almost always at 150 degrees without performance changes. It can be used continuously for 10000 hours at 200 degrees, and can be used for a period of time at 350 degrees. The utility model is widely used for occasions requiring heat resistance, a thermos bottle sealing ring and a heat-resistant handle of a pressure cooker ring.
- Q:What are the common materials of rubber seals for valves?
- Construction machinery industry, shipbuilding industry, automobile manufacturing, hydraulic industry and so on, almost as long as there is a place where the machine will use the oil seal oh.
- Q:What kind of seals are divided into?
- Dynamic seals can be divided into rotary seal and reciprocating seal two basic types.According to the seal of the relative movement of the parts is divided into sealing contact, contact and non-contact seal; according to the seal and the contact position can be divided into circumferential seal and the seal, the seal is also called mechanical seal. The centrifugal seal and spiral seal in the dynamic seal are sealed by the power of the medium when the machine is running, so it is sometimes called the power seal.
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SSIC silicon carbide sealing ring
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 pc
- Supply Capability:
- 10000 pc/month
- Option:
- order
OKorder Service Pledge
OKorder Financial Service
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