本文主要研究内容
作者郭强（2019）在《激光熔覆Fe基合金工艺与性能研究》一文中研究指出：矿用液压支架立柱在矿井下起支撑保护作用,井下空气具有流动性差,高温且环境湿度大,及大量SO2等有害腐蚀性粉尘介质,使液压立柱表面易损坏,空气中的氧化腐蚀导致立柱表面损坏严重,致使立柱在使用过程中的寿命降低,增加采煤企业采矿成本。激光熔覆技术是近年来对工件表面改性和强化修复受损表面的重要技术之一。解决液压支架立柱使用寿命较短的问题,是目前诸多学者研究的内容之一。本文针对液压支架立柱进行研究,主要试验材料为27SiMn钢,使用宽光斑半导体激光熔覆系统,以侧向同轴方式输送Fe基合金粉末,利用激光熔覆技术在立柱基材27SiMn钢样块表面进行改性的探索实验。在正交实验法的基础上,设计各工艺参数,通过熔覆层表面形貌及内部特性观察记录分析,以最佳工艺参数满足实际应用需要为最终探究目标。找到最佳的单道工艺参数组,并在优化参数的基础上探究搭接工艺参数。对优化的单道熔覆实验参数进行搭接实验,筛选出较好搭接熔覆层参数,得到良好的搭接熔覆层,其厚度达1.3 mm以上,此厚度为后续加工工序留有余量,同时搭接熔覆层硬度较基材提高3倍以上,且均值在630HV以上。耐磨损能力得到大幅提高,搭接熔覆层摩擦系数在0.4左右,熔覆层相比基材摩擦系数降低40%,磨损量降低58%。利用国家标准对搭接后熔覆层腐蚀性评价,腐蚀等级为10级,达到液压立柱的国家标准。与27SiMn钢表面质量相比,熔覆层性能得到较大提高。综上所述,激光熔覆Fe基合金使液压支架立柱表面得到改性,效果较好,为立柱表面改性工艺参数和性能探究提供了一定理论支持。
Abstract
kuang yong ye ya zhi jia li zhu zai kuang jing xia qi zhi cheng bao hu zuo yong ,jing xia kong qi ju you liu dong xing cha ,gao wen ju huan jing shi du da ,ji da liang SO2deng you hai fu shi xing fen chen jie zhi ,shi ye ya li zhu biao mian yi sun huai ,kong qi zhong de yang hua fu shi dao zhi li zhu biao mian sun huai yan chong ,zhi shi li zhu zai shi yong guo cheng zhong de shou ming jiang di ,zeng jia cai mei qi ye cai kuang cheng ben 。ji guang rong fu ji shu shi jin nian lai dui gong jian biao mian gai xing he jiang hua xiu fu shou sun biao mian de chong yao ji shu zhi yi 。jie jue ye ya zhi jia li zhu shi yong shou ming jiao duan de wen ti ,shi mu qian zhu duo xue zhe yan jiu de nei rong zhi yi 。ben wen zhen dui ye ya zhi jia li zhu jin hang yan jiu ,zhu yao shi yan cai liao wei 27SiMngang ,shi yong kuan guang ban ban dao ti ji guang rong fu ji tong ,yi ce xiang tong zhou fang shi shu song Feji ge jin fen mo ,li yong ji guang rong fu ji shu zai li zhu ji cai 27SiMngang yang kuai biao mian jin hang gai xing de tan suo shi yan 。zai zheng jiao shi yan fa de ji chu shang ,she ji ge gong yi can shu ,tong guo rong fu ceng biao mian xing mao ji nei bu te xing guan cha ji lu fen xi ,yi zui jia gong yi can shu man zu shi ji ying yong xu yao wei zui zhong tan jiu mu biao 。zhao dao zui jia de chan dao gong yi can shu zu ,bing zai you hua can shu de ji chu shang tan jiu da jie gong yi can shu 。dui you hua de chan dao rong fu shi yan can shu jin hang da jie shi yan ,shai shua chu jiao hao da jie rong fu ceng can shu ,de dao liang hao de da jie rong fu ceng ,ji hou du da 1.3 mmyi shang ,ci hou du wei hou xu jia gong gong xu liu you yu liang ,tong shi da jie rong fu ceng ying du jiao ji cai di gao 3bei yi shang ,ju jun zhi zai 630HVyi shang 。nai mo sun neng li de dao da fu di gao ,da jie rong fu ceng ma ca ji shu zai 0.4zuo you ,rong fu ceng xiang bi ji cai ma ca ji shu jiang di 40%,mo sun liang jiang di 58%。li yong guo jia biao zhun dui da jie hou rong fu ceng fu shi xing ping jia ,fu shi deng ji wei 10ji ,da dao ye ya li zhu de guo jia biao zhun 。yu 27SiMngang biao mian zhi liang xiang bi ,rong fu ceng xing neng de dao jiao da di gao 。zeng shang suo shu ,ji guang rong fu Feji ge jin shi ye ya zhi jia li zhu biao mian de dao gai xing ,xiao guo jiao hao ,wei li zhu biao mian gai xing gong yi can shu he xing neng tan jiu di gong le yi ding li lun zhi chi 。
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论文详细介绍
论文作者分别是来自中原工学院的郭强，发表于刊物中原工学院2019-07-03论文，是一篇关于激光熔覆论文,基合金论文,液压支架立柱论文,参数选择论文,中原工学院2019-07-03论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自中原工学院2019-07-03论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：激光熔覆论文; 基合金论文; 液压支架立柱论文; 参数选择论文; 中原工学院2019-07-03论文;