Wear-resistant ceramic pipe full name metal ceramic lined composite pipe. The wear-resistant ceramic tube is manufactured by high-tech production technology – self – droning high – temperature clutch synthesis method. The tube is composed of corundum ceramic, a transition layer, and a steel layer from inside to outside. The ceramic layer forms dense corundum porcelain (AL2O3) at a high temperature above 2200℃ and forms a firm bond with the steel pipe through the transition layer.
Advantages
Because the composite pipe gives full play to the steel pipe high strength, good toughness, impact resistance, good welding performance, and corundum porcelain high hardness, high wear resistance, corrosion resistance, and good heat resistance, overcome the characteristics of steel pipe low hardness, poor wear resistance, and ceramics poor toughness. Therefore, the composite pipe has good wear resistance, heat resistance, corrosion resistance, mechanical impact and thermal impact resistance, good weldability, and other comprehensive properties. It is an ideal wear-resistant and corrosion-resistant pipeline for conveying granular materials, grinding, and corrosive media. Widely used in electric power, mining, steel, cement, chemical, and other wear industries. Model straight pipe, elbow, bend, tee, size head, in addition to the production of pants pipe, the use of the effect is very ideal. Can replace alloy pipe, cast iron, and so on.
application
Because the pipe has wear resistance, corrosion resistance, and heat resistance, so it can be widely used in electric power, metallurgy, mining, coal, chemical industry, and other industries such as the transport of sand, stone, coal powder, ash, liquid aluminum grinding granular materials and corrosive media, is an ideal corrosion resistance pipeline.
Application in metallurgy and electric power industry
Metallurgy, the electric power industry transport coal powder, ash, mud, lime gypsum slurry, and other annual consumption of a large number of metal pipes. The ceramic composite pipe is used instead of other pipes, which has the characteristics of high wear resistance, long service life, easy installation, and remarkable economic benefits. By Shandong liaocheng chang embellish thermal power plant, liaocheng power plant, Beijing northern new building materials group, Henan hebi power plant, Gansu of our power plant, Taiyuan coal preparation plant, Hunan shaman power plant, Hebei jinni energy co., LTD shotcrete-bolt coal preparation plant, xingtai coal preparation plant and other industrial operation, its operation life is more than a dozen times and even more steel pipe.
Application in the mining and coal industry
(1) Mine: mine filling, refined ore powder, and tailings transport wear on the pipeline are serious, the service life of the previously used ore powder transport pipeline such as Panzhihua, Daye mine, etc. is less than one year, and the service life of the pipeline can be increased by about 5 times.
(2) Coal: coal preparation and long-distance pipeline coal transport are commonly used for wet conveying, the conveying pipe is wear-resistant and corrosion-resistant, and the pipe can be used as a long-life conveying pipe, with considerable economic benefits.
other
(1) The tube does not pollute and does not stick to the fused aluminum liquid. It IS IDEAL TO MANUFACTURE ALUMINUM MELTING EQUIPMENT, aluminum liquid CONVEYING PIPE and liquid RISER PIPE, which IS sensitive to IRON pollution and needs heavy labor for finishing and maintenance after use.
(2) The tube due to good wear resistance and heat corrosion. It is suitable for conveying corrosive materials containing solid particles, high temperature corrosive gases, sulfur-containing geothermal water and other corrosive media.
Product features editor broadcast
SHS- self – tendered ceramic composite pipe features
Good abrasion resistance
As the lining layer of ceramic composite pipe is corundum ceramic (a-AL2O3), the Mohs hardness can reach 9.0, equivalent to HRC90 or more. Therefore, it has high wear resistance to the grinding media transported in metallurgy, electric power, mining, coal and other industries. The industrial operation proved that its wear – resistant life is ten times or even dozens of times of quenched steel.
Low running resistance
SHS ceramic composite pipe does not have convex helix on the inner surface of seamless steel pipe because its inner surface is smooth and never corrodes. The INNER SURFACE ROUGHNESS AND water resistance characteristics of the relevant testing unit test, its inner surface smoothness is better than any metal pipe, clear resistance coefficient of 0.0193, slightly lower than seamless pipe. Therefore, the tube has the characteristics of low running resistance and can reduce the running cost.
Corrosion resistance, anti-scaling
Because the steel ceramic layer is (a-AL2O3), it is neutral. Therefore, it has acid and alkali resistance and seawater corrosion resistance, and has the characteristics of scale prevention.
Fou has good performance in temperature resistance and heat resistance
Because the corundum ceramic (A-al2o3) is a single stable crystalline structure. Therefore, the composite pipe can operate normally in the temperature range of -50–700℃ for a long time. The linear expansion coefficient of the material is 6-8×10-6/0C, which is about 1/2 of that of steel pipe. The material has good thermal stability.
Low project cost
Ceramic composite pipe light weight, the price is suitable. It is 50% lighter than the cast stone pipe with the same inner diameter; It is 20-30% lighter than wear-resisting alloy tube, and has good wear-resisting and corrosion resistance, because of its long service life, so as to reduce the cost of support and hanger, handling cost, installation cost and operation cost. The project cost of the pipe is comparable to that of cast stone, and compared with the wear-resistant alloy pipe, the project cost is reduced by about 20%.
Easy installation and construction
Due to the light weight of the tube, and good welding performance. Therefore, welding, flange, rapid connection and other ways can be used to facilitate the construction and installation, and reduce the installation cost.
species
Centrifugal cast composite ceramic pipe
Centrifugal CASTING COMPOSITE CERAMIC PIPELINE IS A COMPOSITE PIPE MANUFACTURED by “SELF-tenDRoning HIGH TEMPERATURE SYNTHESIS-HIGH SPEED CENTRIFUGATION TECHNOLOGY”, which forms uniform, compact and smooth ceramic layer and transition layer at high temperature and high speed.
Laminated wear-resistant ceramic piping
The veneer wear-resistant ceramic pipeline is made of alumina ceramic pieces pasted on the inner wall of the pipeline with high temperature resistant strong adhesive, which forms a firm anti-wear layer after heating and curing. The production process is simple and the cost is high. The service temperature generally can not exceed 100 degrees, not suitable for pipes.
Spot welded card-type wear-resistant ceramic piping
Spot welding card type wear-resisting ceramic pipeline is to use high temperature resistant strong adhesive to paste the alumina ceramic sheet with hole in the middle of the pipeline wall, while with spot welding process through the hole will be firmly welded ceramic in the inner wall of the steel pipe. To protect the solder joint, a ceramic cap is mounted on it. Each piece of porcelain is not only inserted into each other, but also forms a trapezoidal Angle, so that the porcelain is closely connected between the pieces, with no gap; When the last piece of the circle is tightly embedded, the pieces form a 360-degree mechanical self-locking force between themselves (a technique that was used in Chinese bridge construction centuries ago). The production process of this kind of product is relatively complex, the production cycle is long, and the cost is high.
Integrated molding wear-resistant ceramic pipeline
Integrated molding is the ceramic pipe fittings fired as a whole, with special filling material poured in the inner assembly of the steel pipe. The inner wall of the pipeline is smooth, good sealing, good wear resistance, corrosion resistance.
Ceramic-lined composite steel pipe.
Ceramic steel pipe and traditional steel pipe, wear-resistant alloy cast steel pipe, cast stone pipe and steel plastic, and steel rubber pipe have essential differences. Ceramic steel pipe outer steel pipe, inner corundum. The corundum layer has a Vickers hardness of 100 — 1500 (Rockwell hardness of 90 — 98), equivalent to tungsten and cobalt hard gold. The wear resistance is more than 20 times higher than that of carbon steel tube, and its performance is much better than that of commonly bonded corundum grinding wheels. The corundum grinding wheel is still the main grinding wheel for all kinds of grinders cutting hardened steel. The corundum layer in the ceramic steel tube can wear away the corundum grinding wheel. Ceramic steel pipe wear resistance mainly depends on the inner layer of a few millimeters of corundum layer, its Mohs hardness of 9, second only to diamond and silicon carbide, in all oxides, its hardness is the highest.
Ceramic wear-resistant steel tube lined with ceramic is made by self-spreading high temperature synthesis — centrifuging method. The melting point of corundum in ceramic steel tube is 2045℃. Corundum layer and steel layer have special structure and special stress field due to technological reasons. Under normal temperatures, the ceramic layer is under compressive stress, and the steel layer is under tensile stress. The two are opposites and unity, forming a balanced whole. Only when the temperature rises above 400℃, the new stress field generated by thermal expansion and the original stress field in the ceramic steel tube cancel each other due to their different thermal expansion coefficients, so that the ceramic layer and the steel layer are in free equilibrium. When the temperature rises to 900℃ to put the lining ceramic wear-resistant steel pipe in cold water, repeatedly soak for many times, the composite layer does not crack or crack, showing the incomparable thermal impact resistance of ordinary ceramics. This performance is of great use in engineering construction because its outer layer is steel, coupled with the inner layer heating does not crack, in the construction, the flange, purging mouth, explosion-proof door can be welded, can also be connected by direct welding method, This is better than wear-resistant cast stone pipe, wear-resistant cast steel pipe, rare earth wear-resistant steel pipe, bimetal composite pipe, steel plastic pipe, steel rubber pipe in the construction is not easy to welding or welding. The INNER CERAMIC WEAR-RESISTANT STEEL TUBE has good mechanical impact resistance, and the composite layer does not break and fall off during transportation, installation knocking and bending deformation of the dead weight between the two supports.
The practice of dozens of thermal power plants shows that: lined ceramic wear-resistant steel pipe has high wear resistance and strong fluid erosion resistance. In the primary air duct, the wear resistance of the curved pipe is the fastest, and the wear resistance of the curved pipe lined with ceramic wear-resisting steel pipe is more than 5 times higher than that of the wear-resisting cast steel pipe with thick wall.
In practice, lined ceramic wear-resistant steel pipe used 1-2 years after opening observation and measurement, the composite layer has no obvious wear or fall off, in the same specifications and unit length of the pipeline, the weight of lined ceramic wear-resistant steel pipe is only about 1/2 of the wear-resistant cast steel pipe or bimetal composite pipe, its per meter project cost is reduced by 30-40%. Only cast stone pipe and rare earth wear resistant steel pipe weight of about 2/5, per meter project cost reduced by more than 20%. In corrosive or high-temperature place under the use of lined ceramic wear-resistant steel pipe, its price only stainless steel pipe, nickel titanium pipe of a fraction of.
Fluid pipeline transportation is not only used in the electric power industry, but also throughout metallurgy, coal, petroleum, chemical, building materials, machinery and other industries. When the pipeline conveying grinding material (such as ash, coal powder, mineral powder, tailings, cement, etc.), there is a problem of fast pipeline wear, especially the fast wear of the elbow; When the pipeline is transported with strong corrosive gas, liquid or solid, there is a problem that the pipeline is corroded and thus destroyed quickly; When the material with high temperature is transported in the pipeline, the use of heat-resistant steel pipe is very expensive and so on. With the introduction of ceramic lined wear-resistant steel pipe, these problems can be solved easily.
