SSIC Silicon carbide Pump shaft
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- Loading Port:
- China main port
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- 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: Which is better for plain bearings, copper sleeve and linear bearing?
- The sliding bearing with the copper sleeve with high strength copper alloy (CuZn25Al5, CuZn24Al6Fe3Mn4) as the basic material, according to the use conditions according to a certain proportion in the work surface processing hole and fill in the solid lubricant, copper alloy high strength provides high bearing capacity and solid lubricant can form low friction.Linear bearings are made of steel ballsThe bearing of the sliding bearing is larger, the bearing capacity of the linear bearing is smaller, but the accuracy is high
- Q: What are the properties of plain bearing alloys?
- The sliding bearing alloy should have the ideal organization of both hard and soft:(1) soft matrix and uniformly distributed hard point.(2) a soft particle is arranged on the ideal tissue of the hard base sliding bearing alloy. When the bearing is working, the soft tissue is firstly worn down and sunken, and the lubricant can be stored to form a continuous distribution of oil film, while the hard component plays the role of supporting the journal. Thus, the actual contact area of the bearing and the shaft neck is greatly reduced, so that the friction of the bearing is reduced.(3) the sliding bearing alloy has sufficient compressive strength and anti fatigue performance; good performance for reducing friction (friction coefficient is smaller); reserve good lubricating function; good adaptability; good thermal conductivity and corrosion resistance; good process performance, which is easy to manufacture, low price.
- Q: How is the axial clearance of plain bearings large?
- Adjust the ring gasket by adjusting the outer bolster of the tile.
- Q: What are the components of plain bearings?
- 1 integral radial sliding bearings (bearing housings, integral bushings, oil holes, threaded holes)
- Q: The service life of a sliding bearing can theoretically be infinite, but this is not necessarily the case because the conditions of use can not be ideal. I want to know how long the actual life of the sliding bearings is The longest sliding bearings that I have come into contact with are the bearings (dynamic lubrication) of two Japanese roller mill spindles, which have been used here for about 30 years without any repairs.
- This is the basic lubrication and wear theory problems, according to the oil wedge model, dynamic oil film bearings, as long as the start well, in theory, there is no wear, the general axle is in the semi dry friction state, according to the load, wear and tear of different,
- Q: How does a sliding bearing move at work?
- When sliding bearings work, sliding friction occurs; the magnitude of rolling friction depends mainly on the manufacturing accuracy; and the size of the sliding bearing friction depends mainly on the material of the sliding surface of the bearing. Plain bearings generally work with self lubrication functions; plain bearings are divided into non-metallic sliding bearings and metal sliding bearings in accordance with material.Sliding bearings (sliding, bearing) bearings that work under sliding friction.
- Q: What are the commonly used sliding bearing bushing materials
- (1) grey cast iron. It is used in low speed, light load and no impact load. HT15-33 and HT20-40 are often used.(2) steel base bearing alloy. ZQSn10-1 bronze and ZQA19-4 aluminum bronze are commonly used, suitable for medium speed, high turbidity and impact loading.
- Q: What are the technical requirements and precautions for the assembly of plain bearings?
- The basic function of plain bearings is to accurately locate the shaft and to support the shaft without damaging it under load. Shafts usually cost higher and are often uneconomical to replace. Selecting the bearing alloy that meets certain performance requirements can guarantee the minimum wear of the shaft.
- Q: In what circumstances is it better to use a sliding bearing than a rolling bearing?
- but the rolling of metal debris and other foreign bodies are particularly sensitive to the rolling bearing life shorter than the sliding bearing, bear the load bearing capacity than the same volume of plain bearings is much smaller, because of this, the radial bearing large size. So, in heavy load situations and requirements of small radial size, requires compact structure occasions (such as the crankshaft bearings, rolling mill, roller bearing) with sliding bearing; rolling bearing vibration and noise, therefore, very high precision, and no vibration occasions, rolling bearing is general competent, often used in sliding bearing.
- Q: What is the speed of plain bearings?
- The speed is unpleasant. But copper sleeves are generally not recommended. Because of the wear and tear, and how much radial load you need, you also need to confirm.
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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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