SSIC Silicon carbide Pump shaft
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- China main port
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- TT OR LC
- Min Order Qty:
- 5 pc
- Supply Capability:
- 10000 pc/month
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- order

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Item specifice
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: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:What are the lubrication methods of plain bearings?
- The material is divided into lubricating oil lubrication, solid lubricating grease and Jiaxing Solid Lubricating Bearing Co. Ltd production of self lubricating sliding bearing; the oil supply is continuous oil supply and intermittent supply, intermittent supply by pot filling and brought through the needle valve cup oil grease with only intermittent supply. Continuous oil supply can be divided into oil for oil and oil ring core dam, oil pressure.
- Q:What's the difference between rolling and plain bearings? What is Bush? What do you mean by scraping the Bush? How to operate?
- The difference between rolling bearing and sliding bearing the first appearance of the structure, the rolling bearing is a rotating body by rolling to support the rotating shaft, which is a point of contact area, rolling body more, nine more points of contact; sliding bearing is on the smooth surface to support the rotating shaft, which is a surface contact area.
- Q:How to distinguish sliding bearings and rolling bearings?
- Rolling bearings are relatively moving parts with rolling bodies for rolling bearings.
- Q:I mean, how do you install the large equipment? Can you tell me in detail?
- First of all, rolling bearings are easy to slideRolling into the general bearing position to be in place.Large equipment, plain bearings, very precise. First painted look and the axis of the contact pressure is required to do according to the clearance bearing and shaft in general adjustment times.If you haven't done it, you'd better ask someone to do it. If your head once afraid not this kind of equipment is very expensive. The motor and the machine are to be connected by meter.Bearings are now generally not adjusted by scraping pads.
- Q:How many kinds of bearings are there in sliding bearings? What's the function of each?
- 1, the gap between bearings and bearings. 2, bearings radial series gapThe first kind of clearance will cause the bearing or bush to be damaged, and the lubrication oil pressure will be reduced. The gap is too small, which will make the bearing or bearing load increase sharply and even burn (tile)The second kind of clearance is too big, the bearing will move back and forth in the radial direction, the whole machine is not stable, the gap is too small, so that the load of the machine increases
- Q:In general, what kind of sliding bearing material is used in the case of large load?
- The material selection of sliding bearing is related to load, speed, lubrication conditions, and the self-lubricating materials chosen in different working conditions are different.
- Q:Factors determining the stability of plain bearings
- 2. in the working conditions of heavy load or impact load, the big oil, the viscosity of the lubricating oil, the lubricating film forming stable; 3. static or dynamic static pressure sliding bearing lubrication can be selected the oil viscosity is small; the 4. surface roughness or surface without running should choose the lubricating oil with high viscosity. Sliding bearing grease shaft speed less than 1m/s~2m/s can be used to grease, grease is agent with mineral oil, all kinds of thick (such as calcium, sodium, lithium, aluminum and other metal soap) and water to reconcile, grease consistency (penetration), large bearing capacity, but the physical and chemical property is not stable, should not be used in large temperature variation conditions for low speed and heavy load or the swing bearing. Solid lubricants and gas lubricants, solid lubricants are graphite, molybdenum disulfide (MoS2) and PTFE (PTFE) and other varieties. Usually used under heavy loads or under high temperature conditions. A gas lubricant, usually air, used for high speed and lubricating or grease free applications. Method to provide lubrication bearing lubricant is a necessary condition for the formation of the lubricating film, hydrostatic bearing and bearing through the oil pump, the throttle and the bearing oil groove to continuous supply of sliding bearing, the formation of oil film bearing and shaft neck surface makes separate.
- Q:Why can not the surface roughness of plain bearing surface be too high?
- Because the process of start and stop, because of low speed shaft neck and sliding bearing contact friction generated, if the axis roughness is too large, it will increase the friction, easy to wear and sliding shaft bearing, so the shaft neck surface roughness is not too high.
- Q:What are the criteria for calculating the failure modes of non liquid lubricated journal bearings?
- Wear: wear, so that the gap between the increase, the clearance of the ambassador normal operating conditions damage, noise.Bonding: friction heating causes the oil temperature to rise, the viscosity of the oil drops, and the lubricating conditions deteriorate, resulting in scuffing.
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