Silicon carbide alloy ceramic wear tube

Silicon carbide is formed in two ways, reaction bonding and sintering. Each forming method greatly affects the end microstructure.

Silicon Carbide (SiC)

Reaction bonded SiC is made by infiltrating compacts made of mixtures of SiC and carbon with liquid silicon. The silicon reacts with the carbon forming more SiC which bonds the initial SiC particles.

Sintered SiC is produced from pure SiC powder with non-oxide sintering aids. Conventional ceramic forming processes are used and the material is sintered in an inert atmosphere at temperatures up to 2000ºC or higher.

Both forms of silicon carbide (SiC) are highly wear resistant with good mechanical properties, including high temperature strength and thermal shock resistance. Our engineers are always available to best advise you on the strengths and weaknesses of each ceramic for your particular needs.

Silicon carbide lined pipe

Typical silicon carbide applications

They are used more for operation with wear at low temperature than for high temperature behavior. SiC applications are such as sandblasting injectors, automotive water pump seals, bearings, pump components, and extrusion dies that use high hardness, abrasion resistance, and corrosion resistance of carbide of silicon.

Fixed and moving turbine components
Seals, bearings, pump vanes
Ball valve parts
Wear plates
Kiln furniture
Heat exchangers
Semiconductor wafer processing equipment

For further information on our silicon carbide and how this can be used for your product, contact us today.

Silicon carbide properties

Silicon carbide (SiC), also known as carborundum, is a semiconductor containing silicon and carbon.

The crystal structure of the SiC ceramic wear-resistant pipe is similar to that of the diamond tetrahedral structure. It is a compound composed mainly of covalent bonds. Its hardness is high (Mohs 9.3), its performance is stable, and its physical properties are similar to diamond. It is also known as emery. Black silicon carbide crystal Hardness is the second-order material for diamonds. It is mainly used for making abrasives and grinding wheels, and partly for the production of silicon carbide ceramics.

The characteristics of the elastic modulus and thermal expansion are given by the characteristics of the SiC crystal itself, and the thermal conductivity or thermal diffusivity of the silicon carbides tends to be substantially higher than those of the other structural ceramics. The combination of a high elastic modulus and moderate coefficient of thermal expansion makes the SiC susceptible to thermal shock damage. The resistance to thermal shock is significantly lower than that of silicon nitride, but higher than the structural zirconia ceramic. The behavior before thermal shock is also very dependent on the application. For example, very rapid temperature changes can lead to a preference for Si3N4 over SiC, while for moderate rates of temperature change the high thermal conductivity of SiC can lead to better performance.

Typical silicon carbide characteristics include

Low density
High strength
Good high temperature strength (Reaction bonded)
Oxidation resistance (Reaction bonded)
Excellent thermal shock resistance
High hardness and wear resistance
Excellent chemical resistance
Low thermal expansion and high thermal conductivity

New multiphase silicon carbide ceramics

The new multi-phase silicon carbide ceramic is made of silicon carbide as the main raw material, through reasonable particle assembly, adding silicon powder, alumina powder and binder, and then kneading, molding, drying and high-temperature sintering. It has excellent properties such as high hardness, good wear resistance, thermal stability and chemical corrosion resistance, especially it is insensitive to abrasive angle of attack. The new multi-phase silicon carbide ceramic is affixed as an lining material or embedded in the surface of related equipment, which can greatly improve the wear and corrosion life of the equipment. The abrasion resistance of the wear-resistant particles is three times that of alumina (corundum) ceramics and five times that of high-alloy wear-resistant cast steel. Therefore, it is widely used in thermal power, coal, mining, metallurgy, chemical, cement, port and other fields, and is currently a cost-effective wear-resistant material.

Reinforced silicon carbide ceramic composite pipe

Structure: Silicon carbide ceramics are lined in ordinary carbon steel pipes to form silicon carbide/steel composite pipes. The inner lining silicon carbide adopts the unequal thickness eccentric circular structure type, that is, the outer side of the curved pipe and the lower half of the straight pipe are slightly thicker, so that the wear life of each part of the pipe is the same, and the waste is reduced. The outer side of the silicon carbide is wrapped with FRP to increase the overall strength level. The transition section can be made of ordinary carbon steel pipe or oxygen-aluminum composite wear-resistant steel pipe or flanged according to user requirements. Can be made into a straight tube or a shrimp waist bend.

Scope of application: Low-impact and strong abrasive wear such as conveying powder, block material and ash residue working at 450 °C and 1.0 Mpa.

Performance characteristics: The comprehensive performance is good, the silicon carbide ceramic has a very high wear resistance, and has certain impact resistance and adhesion performance after the outer glass fiber reinforced plastic. The use of steel pipe as the outer casing not only improves the mechanical strength and impact resistance of the pipe, but also facilitates installation and welding. The service life of the product is 3-5 times that of alloy cast steel pipe, cast stone pipe and alumina ceramic composite pipe, generally up to 60,000 hours, and has a very high performance price ratio.

Working condition of silicon carbide ceramic wear-resistant pipe

Metallurgy and power industry: 

The reason why these two industries are put together is mainly because the two industries have a large number of metal pipes for the transmission of coal powder, ash, mud, and the like. After using the wear-resistant elbow pipe, the advantages of strong wear resistance, long life and easy installation are immediately highlighted.

Mining industry: 

If the wear-resistant elbow pipe is not used, the ordinary pipe is used for the transportation of the ore powder. Due to the filling of the mine and the transportation of the concentrate powder, the wear of the pipe is relatively large, so that the life of these pipes is only about one year. After wearing elbow pipes, the life of such pipes will be extended by a factor of five.

Coal industry: 

If long-distance wet transport of coal is required, the pipe has the requirements of good wear resistance and high corrosion resistance, and the pipe with wear-resistant elbow can meet these requirements well.

Features

Silicon carbide ceramic pipe is made of silicon carbide as the main raw material, adding a variety of chemical wear-resistant raw materials and antioxidants, effectively improving the wear resistance of the product to Si0. A high-performance silicon carbide product that is fired at a high temperature by making a high-temperature bonded phase. 

Has the following characteristics:

Stable size, deformation resistance and high temperature strength at high temperature;
Resistance to thermal shock, abrasion and corrosion;
Anti-oxidation, erosion resistance.

Sleeve Type Expansion Joints

Sleeve Type Expansion Joints are primarily designed to compensate for thermal expansion but it is not the only movement being imposed on the pipeline system. Other types of movements can occur that need to be taken into account when providing a pipework flexibility solution such as building settlement, wind loading, vibration from rotating and reciprocating machinery. Related Ceramic lined pipe Ceramic lined pipe is made through self-propagating high-temperature synthesis (SHS) technique. The sleeve type expansion joint is also called tube compensator, pipe expansion joints, which is used for hot fluid pipelines, mainly applied to the laying of straight pipelines. And the working medium can be hot water, steam, oil, etc. The sleeve expansion joint does thermal expansion by sliding its external sleeve. Sleeve compensator Types of Sleeve Type Expansion Joint: Buried sleeve expansion joint: Using advanced sealing structure and sealing materials with the features of easy installation...

Sleeve Type Expansion Joints

Sleeve Type Expansion Joints are primarily designed to compensate for thermal expansion but it is not the only movement being imposed on the pipeline system. Confirmed and drawing by our engineer Other types of movements can occur that need to be taken into account when providing a pipework flexibility solution such as building settlement, wind loading, vibration from rotating and reciprocating machinery. The sleeve type expansion joint is also called tube compensator, pipe expansion joints, which is used for hot fluid pipelines, mainly applied to the laying of straight pipelines. And the working medium can be hot water, steam, oil, etc. The sleeve expansion joint does thermal expansion by sliding its external sleeve.

Tubes Erosion Shields

Tubes Erosion Shields are used to reduce excess wear of boiler tubes within the extreme conditions prevalent inside a fossil fuel fired boiler, Sunny Steel is able to manufacture and supply erosion shield solutions to protect and reduce wear in all applicable boiler related situations. Boiler Tube Shields are designed to eliminate major maintenance and downtime costs from boiler and condenser tube failure. Advantages Tube Shields are custom made to fit perfectly to straight sections, curved sections and even finned and specialised tubing. Boiler Tubes Erosion Shields, also known as anti-corrosion Shields, anti-wear plate, anti-wear protection Shields, anti-wear cover plate, anti-corrosion cover plate, boiler climbing pipe, anti-wear pressure plate, etc. , which are used in combination with snap rings. Boiler Tubes Erosion Shields are produced using a high-pressure press and professional mold pressing. The production time is short, the welding performance is good, the welding should not...

wear resistant ceramic elbow with backpack

Application range 1, coal pulverizing system of power plant pipeline, including, powder transmission pipeline, thick powder separator pipeline, coal drop pipe, combustion system of a wind pipe, a secondary air pipe, three pipeline and burner pipelines, in addition to ash slagging system the discharge pipe, powder pipe, dry ash conveying pipe; 2, iron and steel plant raw material conveying pipeline, collecting pipe, dust pipe, ash pipe, ash pipe, mixing pipe, grinding export pipeline, coal pipeline, coal pipeline, separator pipe, burner radius pipe, etc.; 3, cement plant selection machine outlet pipe, choose machine inlet pipe, pipe dust pipe, vertical mill outlet pipe, circulating air duct, high temperature air blower, lower material pipe, etc.; 4, petroleum, chemical, mining, coal, coal washing plant, smelting, paper, aluminum, building materials, powder engineering, food machinery and other processing and conveying material pipe. Concrete case Application of metallurgy, electric powe...

To help you understand the main features of the wear-resistant composite ceramic pipe

The pipeline is a product that has been developed in recent years. This product has received attention from all aspects. It has a unique advantage of its own. It has been firmly established. Wear self propagating ceramic composite pipe is adopted self propagating ceramic composite pipe aluminum material by centrifugation, heat spreading sintering, because of its good abrasion resistance, water resistance, good corrosion resistance and become one of the many projects in the pipeline wear preferred products, self propagating ceramic composite pipe is easy to break and fall but the manufacturing process the traditional production, and the existence of micro crack, has certain influence on the wear resistance of the process, using the international advanced technology of nano materials, add special additives in traditional ingredients, and the sintering temperature to 2800 DEG C (pressurized aeration technology), SHS products, high strength, small micro crack good toughness, not easy to fa...

Ceramic lined pipe expansion joints

Ceramic lined pipe expansion joints are designed to safely absorb the dimensional changes of pipework systems and ducts caused by heat induced expansion and contraction. They are essential in pipework systems that are used to convey substances of a high temperature, such as steam, heated water or exhaust gases. Expansion joints can also be designed for other applications, such as noise and vibration caused by reciprocating machinery, building settlement and in some extreme environments earthquake movement. Expansion joints are very important components with in a pipework system as they not only solve the problems associated with pipework movement but offer such advantages as reducing stresses and loads to connecting equipment such as pumps and steam turbines.

Ceramic Tile Lined Bend

Ceramic tile lined bending have very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe and gives a very smooth surface. It is well understood that conveying velocity of ash, its density as well as size of ash particles are major factors that determine wear rate of Bends and Y-Pieces. Here, the use of Alumina Ceramic in Ash Handling systems help in lowering the possibility of wear and damages caused to the internals. Here, our expertise lies in filling the linings in casings manufactured at our works or can also be fitted directly in worn out volute casing at plant site. Well package of Alumina Ceramic Lined Bends Some of the industry areas where these are used include: Coal Fired Thermal Power Projects Mineral processing units Steel Plants Cement Plants Coal and Mineral washeries Aluminium plants

Alumina ceramic lined pipes

Ceramic Tile Lined Steel Pipes have very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe and gives a very smooth surface. Ceramics with very low friction factor at low impingement angles decreases the abrasion of materials maximally. Its low density makes it easy to carry and install. Furthermore, its diamond-like hardness, fine grain structure and superior mechanical strength are the unique features that make it a wide range of demanding applications, such as coal preparation, power generation, iron and steel making, cement, asphalt, dredging, mining and mineral processing, oil and gas drilling. The Ceramic Tiles could protect Industrial Components against abrasion, impact wear and high temperature of above 1000C. Standard Flat Tiles of Square & Rectangular Shape having thickness of 6 to 50 mm, with or without central hole are available. Materials: seamless mild steel pipe plus 95% alumina ceramics for liner Designed pressure: >...

Ceramic lined pipe

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