Rare earth wear-resistant BTMCr20 lining plate _ ring _ side plate
Rare earth wear-resistant BTMCr20 lining plate _ ring _ side plate is a manufacturing centrifugal casting, in addition to the market and heat resistant steel, wear resistant steel, corrosion resistant steel, stainless steel casting, centrifugal casting pipe, hydrogen pipe, radiation tube (type I, U, type, W) gas heating pipe, reaction pipe, furnace roller, glass roll, roll, hot dip zinc sinking roller, heat treatment furnace accessories, leaf, cap, chicken, material plate, material basket, slide, castplate, screen plate, lining plate, kiln iron, kiln tail iron, garbage grate, stainless steel pipe fittings, flange, parts, etc. Effect of ZG40Cr25Ni20Si2/ZG4Cr22Ni10/ZG4Cr25Ni20Si2/ZG30Ni35Cr15/3Cr24Ni7SiN/ZG40Cr28Ni48Co5/KMTBCr24-G/ZG14CrNi32Nb/ZG35Cr26Ni12/ZG35Cr26Ni5/ZG30Cr18Mn12Si2N/4Cr25Ni35Nb/2Cr20Mn9Ni2Si2N/BTMCr8⑴ on the speed of austenite formation, cr , Mo, w, v and other strong carbide forming element affinity and carbon, Formation of alloy carbide insoluble in a significantly hinders carbon diffusion, Greatly slowed down the formation rate of A. To accelerate the dissolution of carbide and homogenization of A components, it is necessary to be heated and insulated for longer periods. Some non-carbide forming elements, such as co and ni, accelerate the formation of A by increasing the diffusion speed of carbon. Alloy elements such as al, si, and mn have little effect on the formation rate of A.⑵ Effect on austenite grain size Most alloy elements have the effect of A grain growth, but the degree of influence is different.
In Q275 steel is formed in the steel, the strength of the steel is significant, the toughness is significantly reduced, not the comprehensive performance of the steel. In Q235 steel, the formation of appropriate bainite and martensite is conducive to the strength of steel, and its toughness can still be used, which is beneficial to the comprehensive performance of steel. For comparison, the mechanical properties of their tuning states are also listed in the table. The researchers took 30CrNi2MoVNb steel as an example, heat treatment of the material, namely: quenching + low temperature tempering (QT), isothermal quenching + low temperature tempering (AT), quenching + carbon distribution + low temperature tempering (QPT), through optical microscope (OM), scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD), hardness?.
