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一、前言已有的大量研究表明,将形变强化与相变强化相结合的新工艺——形变热处理——在改善材料性能和提高经济效益上效果显著。汽轮机中小型动叶片,在汽轮机制造厂或电力修造厂多数还是采用锻造坯铣削的工艺方法制造。制造工序主要为:从钢厂购进合格的棒料→制造厂改锻为叶片毛坯(方坯)→热处理(退火+淬火+高温回火)→经检验合格后进行机加工→成品检验。根据形变热处理的原理,若能将叶片的锻造或轧制与热处理合併,必将简化工序、节约能源和材料,显著降低成
First, the preface There have been a large number of studies have shown that the combination of deformation strengthening and phase change strengthening new technology - deformation heat treatment - to improve the material properties and improve economic efficiency significantly. Turbine small and medium-sized blades, steam turbine manufacturing plant or power plant mostly used forging billet milling process. Manufacturing processes are mainly: the purchase of qualified bar from the steel factory → Forging blanks for the blank (billet) → heat treatment (annealing + quenching + high temperature tempering) → After the test machined → finished product inspection. According to the principle of deformation heat treatment, if the blades can be forged or rolled and heat treatment combined, will simplify the process, saving energy and materials, significantly reduced into