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根据国外资料的介绍,在进行钢管、钢棒或其他钢型材的压挤时所使用的模具都是由高速钢、铬钨钢(3XB8)制造或用镍基合金、索尔玛依特合金在合金钢模体上堆焊而成。制造这种模具时,工艺过程比较复杂(锻造,机械加工、堆焊、热处理),并且要消耗很多优质合金钢材。我厂在试制压挤钢管过程中,曾采用了多种钢材和合金制成模具,但由于水压机压力不够,压比不足,压
According to the introduction of foreign materials, the dies used in the extrusion of steel tubes, steel bars or other steel sections are made of high-speed steel, chrome tungsten steel (3XB8) or nickel-based alloys, Alloy steel die body made of surfacing. When manufacturing this mold, the process is more complex (forging, machining, surfacing, heat treatment), and consume a lot of high-quality alloy steel. I plant in the trial production of extruded steel pipe process, has used a variety of steel and alloy made of mold, but due to hydraulic pressure is not enough pressure than enough pressure