Properties of silicon carbide ceramics

With the continuous development of science and technology, materials are also constantly innovated, such as cast stone, cast steel, alloy, ceramics and so on. Silicon carbide ceramics with its high wear resistance, oxidation resistance, corrosion resistance, become a wide range of wear-resistant materials, occupy the entire ceramic market share. The following is a detailed description of the performance characteristics of silicon carbide ceramics, I hope to help you.

1. Excellent wear resistance, continuously used for more than 10 years
   The wear resistance of sic ceramic is 266 times of that of manganese steel and 171.5 times of that of high chromium cast iron. The application of wear-resistant ceramic composite elbow in the pulverizing system greatly reduces the wear of the equipment, the service life is at least 10 years, and the maintenance frequency and cost are reduced.
2. The ceramic lining has high strength, high hardness and light weight
   The rockwell hardness of corundum ceramics produced by our company is hra90-98, which is much higher than that of wear-resistant steel and stainless steel. The density is only half of that of steel, and the weight of ceramic elbow is only 1 / 3 of that of wear-resistant steel elbow, which is easy to install and replace.
3. The inner wall is smooth without blocking powder
   After high temperature sintering, the structure of sic ceramics is compact, and the surface is smooth after grinding and deburring. The inner wall of ceramic composite elbow is flat and smooth without blocking powder.
4. Low resistance
   the surface of wear-resistant ceramic tube is smooth. The inner surface smoothness is better than any metal pipe. Therefore, the small running resistance can reduce the operation cost.
5. Low cost
   The ceramic pipe is light in weight, good in welding performance and convenient in construction and installation, so it will reduce a lot of costs by integrating various aspects of installation and operation.

In addition, compared with other wear-resistant pipes, the properties of sic ceramics can not only be favored by the market and constantly replace some traditional wear-resistant materials, but also have many advantages compared with traditional wear-resistant materials, such as cast stone, cast steel and centrifugal casting ceramic materials.

Reaction bonded silicon carbide

Reaction Bonded SiC has the lowest cost production technique with a course grain.

Reaction Bonded SiC provides somewhat lower hardness and use temperature, but higher thermal conductivity. Reaction bonded silicon carbide has high strength, high hardness, hig abrasion resistance, high temperature resistance, corrosion resistance, good oxidation resistance, good thermal shock resistance, good thermal conductivity, rapid cooling and rapid heat resistance and high temperature creep resistance, etc. It can be made into beam, roller, cooling air pipe, thermocouple protection pipe, temperature measuring pipe, burner nozzle, wear-resisting parts, corrosion-resisting parts, sealing parts and a variety special-shaped structural parts.

Pressureless sintered silicon carbide

pressureless sintered silicon carbide has higher purity

Compared with reaction bonded silicon carbide, pressureless sintered silicon carbide has higher purity, better mechanical properties, more prominent corrosion resistance ( Resistantto strong acid and alkali corrosion, It is also the only ceramic material which can resistant to hydrofluoric acid corrosion ), higher wear resistance, because of there’s no free silicon in the material can be used in other materials can not meet the environment, longer service life.