SSIC silicon carbide sealing ring
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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 main seals used in nuclear power plants?
- Nuclear power plants mainly use sealed gaskets, graphite gaskets are used in pipelines, rubber gaskets are used in non-standard equipment. Nuclear grade graphite gaskets require high levels of halogens and sulfur
- Q: What are the requirements of bearings for sealing?
- The sealing methods of rolling bearings can be divided into two categories: contact seal and non-contact type.Contact sealing, felt ring seal, sealing ring, sealing, etc..
- Q: What kind of seal is the dust sealing ring?
- Types of dust guardThe categories of dust ring are increasing now. According to its function, characteristic, structure type and sealing mechanism, classification can be divided into several kinds. According to the structure of the form of points, there is a rectangular, chamfer, foot shape, and J shape and triangle; according to its function can be divided into single and double acting; according to the dust ring there is a skeleton are skeleton and skeleton type; according to the dust ring have two kind of combination divided into single type and combination type.
- Q: What are the differences between silicone rubber and butyl rubber in the use of water seals for home improvement?Which is better for tightness, durability and heat resistance?Looked at each answer, still confused, at present most of the water seals are used Ding Qing, even if very small seals, why?
- Not easy to produce bacteria, it is recommended to use! If the price is low, choose the nitrile! I have not heard of it!
- Q: The difference between piston seal and piston rod seal
- The sealing groove should be sealed on the shaft, that is to say, the piston is sealed. The sealing groove is opened on the hole and should be sealed. That is to say, the piston rod is sealed
- 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: 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 are the common sealing forms of hydraulic cylinders?
- 2, the friction ring seal on sleeve friction on the piston ring (made of nylon or other polymer materials) in O sealing effect of elastic ring under tight and cylinder wall to prevent leakage. This material is good effect, friction is low and stable, high temperature resistant, wear compensation ability, but the processing requirements, installation is inconvenient, suitable for high voltage and high speed or high sealing performance requirements. 3, the sealing ring sealing is to use rubber or plastic elasticity, so that a variety of sections of the ring ring attached to the static and dynamic between the mating surface to prevent leakage. The commonly used sealing rings are O, Y, V and so on. The utility model has the advantages of simple structure, convenient manufacture, automatic compensation after wearing, reliable performance, and can be used between the cylinder and the piston, between the cylinder head and the piston rod, between the piston and the piston rod, between the cylinder and the cylinder head.
- Q: There are two types of oil tank seals for transformers. They are "totally sealed" and "oil pillow type". What is the difference between them? Who can explain in detail?
- 2, there may be no reason for the rubber seal installed in the transformer caused by the installation stage, such as excessive compression of the rubber sealing pad lose elasticity, or poorly positioned, local stress is damaged, or the installation of surface roughness caused by local cracks, etc..
- Q: Differences and connections between fasteners and seals
- In general, we are divided according to materialOr directly defined as mechanical components
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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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