SSIC Silicon carbide Pump shaft
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- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 pc
- Supply Capability:
- 10000 pc/month
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Specification
Tailor-made for customers all kinds of pumps with my company, kettle, bearing no pressure sintering silicon carbide mechanical seal, and all kinds of resistance corrosion pump parts and the accessories. Our company pressureless sintered silicon carbide products a reaction bonded silicon carbide products, can easily adapt to the harsh working conditions, in strong corrosive, strong wear, high temperature, high pressure, high strength harsh harsh under complex conditions is more outstanding. At the same time, our company to provide customers with nozzles, armored body armor plate and other special-shaped pieces of custom-made service. Compared with the reaction sintered silicon carbide product (SSIC), the production process of the sintered silicon carbide product (RBSIC) is complex and the production investment is high. In addition, whether it is in the resistance to corrosion and abrasion, compressive and flexural fracture resistance of or high pressure, high temperature and other properties are more excellent, this is pressureless sintering silicon carbide products will in the near future completely replace reaction bonded silicon carbide products is one of the important reasons. The main varieties of the pressureless sintering silicon carbide products with all kinds of mechanical seal with sealing ring and moving ring and static ring, corrosion resistant pump, magnetic pump, shield pump components. At the same time, the production special-shaped pieces of nozzle, wire drawing die, armor plate. According to the drawings, we will provide customers with satisfactory products and customer satisfaction. Let customer satisfaction is one of the purposes of our company has been pursued, but also one of the objectives pursued by all the staff of our company. Features: high temperature resistance, wear resistance, corrosion resistance, oxidation resistance, hardness, heat conduction Main products: mechanical seals, pump parts, nozzles, bullet proof plate Mechanical seals: high hardness, high wear resistance, good self - Lubrication and high heat conductivity, so the service life of mechanical seal is greatly improved. Pump: resistance to corrosion and wear characteristic of the pressureless sintering silicon carbide become magnetic pump sliding bearing, resistant corrosion pump sleeve, shielding pump assembly, etc. various kinds of pump of choice Nozzle: wear resistant, high temperature resistance, high hardness characteristics of the normal pressure sintering silicon carbide nozzle to become a perfect alternative to carbide nozzle Armor: light weight, high hardness, good ballistic performance, pressureless sintering of SiC for your life and property security escort |
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:Bearing is the bearing?
- No, that's the combination of the bearings and the sockets.
- Q:Establishment of oil film bearing capacity of dynamic sliding bearing and several conditions to ensure full liquid lubrication
- There is only one condition for complete liquid lubrication: the minimum oil film thickness is greater than the sum of the roughness of the shaft and bearing table.
- Q:How do I move the plain bearings?
- The bearing is stationary, the rotor overcomes the resistance of the oil film and rotates in the bearing.
- Q:What material is suitable for sliding bearings?
- 2. copper powder layer 0.20~0.35mm, with good bearing capacity and wear resistance, good thermal conductivity, can timely transfer the heat generated during the operation of bearings. The composite can be infiltrated into the gap of copper powder balls, and the bonding strength is improved.
- Q:Cooling method and structure of sliding bearing
- At the same time, lubricating oil also plays a cooling role, the effect of forced lubrication is better, this requires oil station system, the cost is much higher. Oil ring is common.
- Q:What are the parameters of maximum bearing capacity factor Cp of plain bearings?
- Note: only for a specific bearing, the carrying capacity coefficient is large, its carrying capacity is strong, that is, Cp and F is proportional to the relationship; when the working conditions and parameters are not the same, we can not make such a simple judgment.
- Q:How to choose the aspect ratio of plain journal bearings
- When the width to diameter ratio is too large, the bearing width is large, which makes it easy to cause serious wear on the journal and bearing.
- Q:In power plants, are the bearings used in turbines rolling or plain bearings?
- Because of the high speed of the turbine, it is usually a sliding bearing. Rolling bearings are used only for low speed generators.
- Q:Are magnetic drive pumps static and sliding bearings a thing?
- A) the types and characteristics of sliding bearing sliding bearing according to the 1. loads are divided into: (1) sliding bearings (radial sliding bearing); mainly bear radial load; (2) the thrust bearing, main bearing axial load. 2. sliding bearings are suitable for low speed, high precision, heavy load and structural requirements. It is also used at low speed and impact.
- Q:What are the most afraid of sliding bearings?
- Sliding bearings are surface contact, so between the contact surface to maintain a certain oil film, so the design should pay attention to the following problems:1, it is necessary to smooth the oil film into the friction surface.2, oil should be from the non load area into the bearing.3, do not make the whole ring oil tank in the middle of the bearing.4, such as oil tile, joint opening oil groove.5. Make the oil ring fully and reliably supplied to the oil.6, the filling hole not blocked.7, do not form an oil free flow zone.8, to prevent cutting off the sharp edges and edges of the film.
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SSIC Silicon carbide Pump shaft
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 pc
- Supply Capability:
- 10000 pc/month
OKorder Service Pledge
OKorder Financial Service
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