SSIC silicon carbide sealing ring
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- Min Order Qty:
- 10 pc
- Supply Capability:
- 10000 pc/month
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Specification
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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 |
：
- Q: What are the differences between polyurethane TPU and CPU in cylinder seals?
- TPU thermoplastic polyurethane elastomer (referred to as TPU)Is a new type of polymeric material between rubber and plastic, in practical application, much as rubber replacement products, also has excellent abrasion resistance and CPU (elastic body most), at room temperature into a solid, heated or solution to make it into a liquid, processing after forming, to become solid polyurethane materials. TPU is one of the most widely used and the largest production of polyurethane elastomer, such as sports equipment: skate wheel, shoe buckle, Internet, accessories, snow boots industrial parts: seal, steam pipe, pipe fittings, accessories (dust damping analysis, industrial wheel, conveyor belt material: air pressure pipe, water pipe medical tube, wire and cable, and a watchband, film, shoe soles, shoe accessories: sheet, cushion, accessories, leather, labels and so on, a day
- Q: What rubber kind of rubber does the brake seal of the car use?
- People have encountered such a problem in production: a customer asked him to produce a number of cars on the brakes with seals, resistance brake oil, swelling can not exceed 2%, shore A60. hardness he used nitrile rubber production, detection of customers to pay customers after that swelling failed, he was replaced nitrile rubber grades with nitrile rubber and butadiene acrylonitrile production in 42% and merged with pVC, is still not qualified. This puzzled him.
- Q: About hydraulic cylinder sealing ring What is the model of the general oil cylinder seal ring and what is its selection principle?
- The common main sealing structures are U, Yx seals, PTFE combination seals, DAS combination seals, V type combination seals, etc.. There are guide ring (support ring), dust seal, static seal and other auxiliary seal. These forms can also be used in combination to achieve the desired performance
- Q: What is the international requirement for the temperature of the seal in the hydraulic cylinder?
- X ring, rubber ring, rubber ball, Pu seal, seal, pipe joints seals, rubber gaskets and rubber parts. All imported raw materials.
- Q: In the seal of hydraulic cylinder, the O-ring and Y ring are sealed well
- It all depends.Minor changes in the shape of the same device in the same situation (environment)Its role will not be the same
- Q: How to prevent the metal from sticking to the gasket?
- It is better to use torque wrench when sealing gasket is pressed. For large bolts and high strength bolts, it is better to use hydraulic tightening devices. The tightening torque shall be calculated by calculation according to the given gasket. The size of the hydraulic pressure of the hydraulic tightening device shall also be determined by calculation.5. When installing the gasket, tighten the nut in sequence. However, the design value should not be screwed once. Generally should be recycled at least 2~3 times so that the gasket can be evenly distributed.6, the flammable and explosive medium pressure vessel and piping, replacing gasket should be used to avoid security tools, tool and flange bolts or collide, sparks, causing a fire or explosion accident.
- Q: Made the bearing oil seal O ring business for a long time, why not put up the quality of domestic?
- Ha-ha！ In fact, there are also good domestic, but you did not find it, to find a good supplier, you do this line for many years? Is that all right? Do you know any big manufacturers in China? Such as: manufacturers of PTFE, rubber manufacturers, polyurethane manufacturers, you may have been looking for those family workshops
- Q: What's the difference between the oil seal and the seal?
- Because the oil seal is a high-speed rotating products, the equipment sealing requirements are relatively high, including the formula of materials
- Q: What are static seals and dynamic seals?
- A static seal means that the seal is relatively stationary with its sealed chamber and that the dynamic seal is relatively moving
- Q: What are the better domestic rubber parts, seals ah, the best quality is better, cost-effective points
- If it refers to domestic, then the first must be in Anhui Ding, of course, in comparison, the price should be slightly higher
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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
OKorder Service Pledge
OKorder Financial Service
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