SSIC Silicon carbide nozzle

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Item specifice:

Special ceramics: Special ceramics

Product Description:

SSIC     Silicon  carbide  nozzle

SSIC     Silicon  carbide  nozzle

SSIC     Silicon  carbide  nozzle

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

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

 


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Q:I use the pump shaft, in the skeleton oil seal often grinding groove
- never grinding shaft oil seal; adopts inner and outer double ring composite structure; the inner and outer ring can rotate relatively; the design principle of the similar bearing
Q:Pump shaft and pump housing using mechanical seal, what are the characteristics and installation technology to ten, ask those
2. Ensure that the pressure spring of the rotating friction surface is not invalid3, the static friction surface and pump shell seal in place, the rotating friction surface and shaft seal in place
Q:Why is the pump shaft broken?
Some time ago, just bought 1 pumps, no two shaft is broken. The main reason for this fracture shaft should be the quality of the shaft.2, the alternative is to change the spare shaft.
Q:Checking the wear of the pump journal is determined by measuring what it is
4. in the pump body has the following: allow welding repair length within 3Omm, does not extend to crack the bearing seat hole; a breaking part and a flange joint of the cylinder cover; oil seal seat hole damage. Water pump shaft bending shall not exceed 0.05mm, otherwise it should be replaced. Impeller blade damage should be replaced. Pump shaft bore wear seriously, should be replaced or inserted repair.5. check whether the water pump bearings are flexible or abnormal sound, if it shows that the bearings have problems, should be replaced.6., pump assembly, hand rotation, the pump shaft should be stuck, impeller and pump shell should be no rub. Then check the water pump displacement, if there is a problem, should check the reasons and ruled out.
Q:What are the common methods of balancing the axial thrust of a water pump?
Both sides of the impeller inlet.The impeller is installed on the cover plate of back blade, in addition, the extra axial thrust by the thrust bearing.The axial thrust balance method of multistage pump is as follows:
Q:How is the power of the pump shaft calculated?
Input power refers to the power absorbed by a device. For an electrical device, the input power is equal to the product of the input voltage at the input current. For different devices, the input power has different interpretations. For example, the speaker's input power refers to the power of the unit in the speaker, the power of the unit in the speaker.
Q:Fracture analysis of pump shaft of centrifugal pump
4, design manufacturers whether there are design flaws, and manufacturers to further explore;5, check whether the pump vibration, find the cause of vibration and solve.Centrifugal pumps are vertical, horizontal, single-stage, multi-stage, single suction, double suction, self suction and other forms. Centrifugal pumps use the impeller to rotate and cause centrifugal motion of the water to work. The pump before starting to pump shell and the water pipe filled with water, and then start the motor, the pump shaft to drive the impeller and water do high-speed rotation, centrifugal water movement, was thrown to the outer edge of the impeller, the pressure water pipeline flow through the volute pump into the pump shell.
Q:Maintenance pump, the water pump shaft bending shall not exceed,
Must be replaced! The pump shaft can only tell how much it is allowed to jump When the shaft is beating too much, the noise, the unit will be beating, and the life of a set of seals will be shortened greatly. Finally, the water supply will not hit the water supply.
Q:How to test the bending of the centrifugal pump shaft? How to do straightening work?
The concave part of the shaft (at this time, the concave face) can be struck by a steel drill bar to straighten the surface of the shaft.
Q:Pump shaft and standard bearings, please
With the shaft and the bearing is over with, is slightly larger than the shaft bearing, is in 0.001~0.002, so in the installation process of the bearing is installed, can never beat the way, so that the precision of the bearing damage.

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