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时间:2018-12-19
《gxy-2钻机齿轮轴(20crmnti)热处理工艺设计》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、近年来,社区问题越来越受到各界人士的关注,社区建设的试验和探索在全国开展起来,初步形成了上海模式、沈阳模式、江汉模式和青岛模式GXY-2钻机齿轮轴(20CrMnTi)热处理工艺设计 GXY-2钻机齿轮轴(20CrMnTi)热处理工艺设计 摘要:通过对GXY-2钻机齿轮轴的工作条件的分析,提出工艺要求并且选定材料为20CrMnTi钢,20CrMnTi钢最常用的就是用于作汽车齿轮、齿轮轴等,其基本工艺为:设计下料→锻造成形→等温正火→切削加工→渗碳、淬火+低温回火→喷丸→磨削加工→检验处理,一般可以作到回火后硬度HRC=56~64
2、,通常控制在中间范围.淬火时,通常450℃~500℃预热,强渗区温度在880℃~900℃左右的样子,淬火区可以降到850℃以下淬火,油温稳定在70℃。经过这一系列的工艺流程,最终可得到满足工艺要求的GXY-2钻机齿轮轴。 本文主要论述合金钢20CrMnTi的工艺性能,以及在齿轮轴工艺中的特殊热处理性能,通过本次毕业设计的写作,对热处理有了一定的了解,为以后的工作打下了良好的基础。 关键词:20CrMnTi;齿轮轴;合金钢;热处理工艺 目录 1引言·······································
3、······3目前,土建、装潢和改造工程接近尾声,设备政府采购基本到位,人员招录工作方案已上报,整个工作紧张、有序、高质地往前推进。近年来,社区问题越来越受到各界人士的关注,社区建设的试验和探索在全国开展起来,初步形成了上海模式、沈阳模式、江汉模式和青岛模式 2齿轮轴的热处理工艺设计···························6 2.1齿轮轴原材料的选择······································6 2.1.1满足齿轮轴材料的机械力学性能·······················
4、······6 2.1.2满足齿轮轴的工艺性能·····································7 2.1.3满足齿轮轴的经济性要求···································7 2.2齿轮轴的服役条件分析与性能要求··························7 2.2.1服役条件、失效形式·······································7 2.2.2目前,土建、装潢和改造工程接近尾声,设备政府采购基本到位,人员招录工作方案已上报,整
5、个工作紧张、有序、高质地往前推进。近年来,社区问题越来越受到各界人士的关注,社区建设的试验和探索在全国开展起来,初步形成了上海模式、沈阳模式、江汉模式和青岛模式主要性能要求·············································8 2.3齿轮轴材料的选择········································8 2.4齿轮轴材料的分析········································9 2.5齿轮轴中合金元素的作用············
6、·····················9 2.5.1合金元素在钢中的存在形式·································9 2.5.2合金元素对组织转变的影响································10 2.5.3合金元素对力学性能的影响································10 2.6目前,土建、装潢和改造工程接近尾声,设备政府采购基本到位,人员招录工作方案已上报,整个工作紧张、有序、高质地往前推进。近年来,社区问题越来越受到各界人士的关注,社区
7、建设的试验和探索在全国开展起来,初步形成了上海模式、沈阳模式、江汉模式和青岛模式热处理工艺设计·········································11 2.7齿轮轴的预备热处理·····································12 2.7.1正火工艺设计············································12 2.7.1.1正火加热保温时间················································1
8、4 2.7.1.2正火的目的·······················································14 2.7.2调质···········································
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