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成都无缝钢管厂生产的精环牌液压件用热轧无缝钢管适用于制造机械化采煤设备所需液压支架,并可用于机械、矿山、起重、运输等部门的液压设备及零部件。该产品钢质纯净、化学成分均匀、机械性能稳定、尺寸精度高、表面质量好。于1984年荣获国家质量奖(银牌)。精环牌液压件用热轧无缝钢管采用27SiMn、35、45钢,用平炉或电炉冶炼,钢水经吹氩处理后浇铸成四角波浪型钢锭。在环形炉中加热后用1000～1800吨水压机穿孔,再经盘式炉升温后
The seamless steel pipe production plant in Chengdu fine ring licensing hydraulic parts with hot-rolled seamless steel pipe for the manufacture of mechanical mining equipment required hydraulic support, and can be used for machinery, mining, lifting, transportation and other departments of hydraulic equipment and parts. The product is pure steel, chemical composition, mechanical properties and stability, high dimensional accuracy, surface quality. In 1984 won the national quality award (silver). Fine ring brand hydraulic parts with seamless steel tubes 27SiMn, 35,45 steel, flat furnace or electric smelting, molten steel after argon argon casting into a four-wave corrugated ingot. After heating in a ring furnace with 1000 ~ 1800 tons of hydraulic perforation, and then heated by the pan furnace