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八十年代以来,以机械工业实现工艺专业化协怍的改革为契机.我国的锻造业始成为独立的工业体系而步入健康发展的道路。九十年代、由于炉外精炼以及真空浇铸技术的采用,诸如60万 KW 汽轮机、发电机转子等高质量的大型锻件已不再依赖进口;由于热、温精锻以及冷挤压技术的运用,能够生产出几何尺寸精密和接近净形锻件(例如直伞齿轮、汽轮机叶片等),大大提高了材料利用率;由于楔横轧、摆碾等特种锻造工艺的运用,也大大改善了诸如中间轴、凸轮轴、汽车半轴、连杆等汽车锻件的生产工艺及质量。与此同时,对老式蒸汽锤采用节能的电液锤动力头进行改造;在批生产的前提下,更新燃料结构,采用可控硅静止变频电源的中频加热炉,逐步取代燃油炉和燃气炉。由于上述工艺专业化的实现和技术进步,使锻造业上升到一个新的水平。
Since the 1980s, it has been an opportunity for the machinery industry to realize the reform of the process specialization. China’s forging industry has become an independent industrial system and has entered the path of healthy development. In the 1990s, due to the adoption of furnace refining and vacuum casting technology, high quality large forgings, such as 600,000 KW steam turbines, generator rotors, etc., were no longer dependent on imports; due to the application of hot, warm forging and cold extrusion technologies, The ability to produce geometrically precise and near-net-shape forgings (such as straight bevel gears, turbine blades, etc.) has greatly increased material utilization; due to the use of special forging techniques such as cross-wedge rolling and pendulum rolling, the intermediate shafts have also been greatly improved. , camshafts, automotive axles, connecting rods and other automotive forgings production process and quality. At the same time, the use of energy-saving electro-hydraulic hammer power heads for old steam hammers was reformed; under the premise of batch production, the fuel structure was renewed, and an intermediate frequency heating furnace using a thyristor static variable frequency power supply was gradually replaced by the fuel oil furnace and the gas furnace. Due to the above-mentioned process specialization and technological progress, the forging industry has risen to a new level.