Bimetal wear-resistant elbow lining selection of high chromium molybdenum alloy (Cr10~Cr30), the product has high alloy cast iron wear resistance, corrosion resistance (wear resistance, corrosion resistance is more than 30 times of 16Mn seamless steel pipe), but also has high mechanical strength and high impact resistance, composite bimetal is cast by metallurgy, the use of safe and reliable. Wear-resistant steel is mainly added Cr-Ni-Mo-Cu-RE alloy, after tempering heat treatment process, so that the alloy steel has strong wear resistance, corrosion resistance characteristics, but also has high mechanical strength and impact resistance, wear-resistant cast iron selection of chromium series white cast iron, is a kind of excellent wear resistance alloy, on the premise of corrosive medium and particle erosion interaction, It is more appropriate to choose white cast iron. Under dry condition, wear is the primary failure method of the material, then a high chromium cast iron material which can obtain martensitic matrix by heat treatment is selected.
Product characteristics
① Good wear resistance, giving full play to the characteristics of high chromium casting (KMTBCr28MoG) excellent wear resistance.
② High pressure, can be applied to any pressure level using the inner liner with the outer steel pipe tightly, the use of special technology, the formation of welding between the composite layer, to ensure the reliability of operation.
③ Good resistance to mechanical shock and thermal shock.
④ Easy to install and connect, can be connected with flanges, flexible joints, can be arbitrarily cut, direct welding.
Bimetal wear-resistant elbow is made of vacuum casting composite process, which is the most advanced metal composite process in the world, and belongs to semi-precision casting technology, which greatly improves the surface accuracy compared with sand casting, and does not appear sand clamping phenomenon, due to the vacuum pouring, there will be no porosity and other defects. Due to the high precision of the mold making process, the composite wear-resistant layer thickness of the composite wear-resistant elbow cast is uniform, avoiding the phenomenon of uneven wall thickness caused by the process of release and repair of the general casting method, and its organization is uniform and its performance is stable. At the same time, the process can compound straight pipe and shaped pipe of any size and diameter, and can compound bending pipe, three-way, four-way, conical pipe, variable diameter pipe, non-equal wall thickness pipe eccentric pipe as a whole, reducing the movement resistance and reducing the operating cost in material transportation.
Bimetal wear-resistant elbow application range: mainly used in mining, metallurgy, thermal power plant and other places of material conveying, output, heat-resistant steel furnace flue, burner is applied to the thermal power plant boiler smoke pipe powder system of the key accessories. Thirdly, the wear-resistant pipes and pipe fittings produced by our company are also suitable for the transportation of smoke and medium mixtures in the smoke duct pipes of power plants or steel mills.
