王葛,杜雄飞,高静娜,崔明倜,李强

• 1:国家冷轧板带装备及工艺工程技术研究中心燕山大学

摘要(Abstract)：

为了提高大直径厚壁压力气瓶30Cr Mo钢的综合力学性能,对其最终热处理过程设计了3种内外表面同步间歇喷雾淬火工艺,即淬火-回火(Q-T)工艺、淬火-碳分配(Q-P)工艺和淬火-碳分配-回火(Q-P-T)工艺。并利用数值模拟、物理模拟和相关实验对大直径厚壁压力气瓶的3种最终热处理工艺进行研究,分别给出了气瓶在传统Q-T工艺与新型Q-P(-T)工艺下其内部特征节点的温度、组织及应力的演化规律。研究结果表明,经Q-P-T工艺处理后的大直径厚壁压力气瓶不仅可以降低其瓶身的内外温差和残余应力,而且可以显著改善其内部组织均匀性,提高其残留奥氏体含量,从而改善其瓶身塑性与韧性,提高其综合力学性能。

关键词(KeyWords)： 压力气瓶;热处理;Q-P工艺;Q-P(-T)工艺

Abstract:

Keywords:

基金项目(Foundation): 国家冷轧板带装备及工艺工程技术研究中心开放课题(NECSR-201310);; 燕山大学重型机械协同创新计划课题(ZX01-20140100-03)

作者(Author): 王葛,杜雄飞,高静娜,崔明倜,李强

DOI: 10.13289/j.issn.1009-6264.2016.03.036

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