贝氏体铸铁 bainitic cast iron 基体主要由贝氏体构成的铸铁。可通过添加镍、钼、铜等合金元素在铸态下获得，也可通过热处理获得。
本发明涉及一种贝氏体球墨铸铁的控制冷却热处理工艺及其装置。
The present invention relates to one kind of controlled cooling heat treatment process and apparatus for bainite ductile iron.
贝氏体球墨铸铁由于具有优异的强韧性能和耐磨性能已得到广泛的应用。
The bainite ductile cast iron has been widely used because of its excellent combination of hardness, toughness and wear properties.
试验表明：经过表面淬火的铸钢和经过贝氏体淬火的球墨铸铁，其接触疲劳寿命和耐磨性大幅度提高。
The test indicates that contact fatigue life and wear resistance of surface quenched casting steels and Bainite quenched spherical cast iron are increased largely.
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