SSIC Silicon carbide Pump shaft

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Special ceramics: Special ceramics

Product Description:

SSIC  Silicon carbide Pump shaft

SSIC  Silicon carbide Pump shaft

SSIC  Silicon carbide Pump shaft

SSIC  Silicon carbide Pump shaft

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

 

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Q:The commonly used sliding bearing materials are divided into metal materials and which two materials
Metal materials and non-metallic materials, non-metallic materials, and engineering plastics, carbon graphite, rubber, wood, metal materials, sub bearing alloy, copper alloy, aluminum base bearing alloy, cast iron, porous metal materials
Q:Generally speaking, the stiffness of the rolling bearings is more than the stiffness of the sliding bearings - the stiffness of the ball bearings is more than the stiffness of the roller bearings - -
The same size of rolling bearings is lower than plain bearings, and the ball bearings are lower than those of roller bearings.
Q:How can I distinguish my computer fan from sliding bearings or rolling bearings? Twenty
What bearings can be oiled, no such statement.
Q:What kinds of plain bearings can be divided into?
(2) the bearing material and the bush structure have a great influence on the performance of the sliding bearing. The bearing material and the bush structure should be selected by considering various factors.(3) non liquid friction sliding bearing calculation and checking, limit pressure P, to ensure that the lubricating oil film is not destroyed; limit value of PV, in order to ensure the bearing temperature is not too high, because the temperature is too high, easy to cause the rupture boundary of oil film.
Q:Advantages and disadvantages of plain bearings relative to rolling bearings
I don't know much about sliding bearings, but according to my understanding of a little volume is divided into several aspects: sliding bearing roller bearing, can be very thin, thinner than the needle bearing speed, noise, life and other properties: sliding bearing ratio of rolling bearing, sliding friction to rolling friction than for small, energy relatively small losses. Therefore, whether in noise or at the highest speed, the rolling bearing is superior, and the friction is relatively small, and the life is relatively long.
Q:What are the main structures of radial plain bearings? What are their respective features?
The integral type bearing has simple structureThe mounting surface of the flange type bearing is perpendicular to the central line of the bearing
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:What are the international brands of sliding bearings?
products widely used in automobile industry, building materials, machinery, hydraulic, wind power, industrial transmission, fitness equipment, pumps and other industries.ELGES brand is representative of high quality and reliability.If you have any questions, please call Q:574618430
Q:What are the tolerances and finishes for plain bearings and shaft mating surfaces?
Tolerances and surface roughness of mating surfaces of plain bearings and shafts:1. milling machines, drilling machines and lathes, gear reducer and worm gear reducer using sliding bearings, sliding bearing holes and shaft outside circleMatching H7/f7; surface roughness: sliding bearing bore Ra0.8, outer circle Ra0.8---Ra0.4.2. motors, centrifugal pumps, fans, steam engines, sliding bearings used in crankshaft and connecting rods of internal combustion engines, sliding bearings, bores, and shaftsMatching H9/f9; surface roughness: sliding bearing bore Ra0.8, outer circle Ra0.8---Ra0.4.3. agricultural machinery use of sliding bearings, sliding bearing holes and shaft outer circle, select H11/d11;Surface roughness: internal bore of sliding bearing Ra1.6, outer circle Ra3.2---Ra1.6.
Q:Is plain bearing just linear bearing or linear bearing is plain bearing?
Journal bearings are a large class of bearings. General bearings can be divided into rolling bearings and sliding bearings. Linear bearings are one of the rolling bearings, and the two are not the same concept at all.Bearing (sliding), in brief, is the shaft (the shaft is supported by the bearing as a part of the Journal) and the Bush (with the shaft neck matching parts known as the Bush), sliding friction in the work of the bearings.

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