黄大仙玄机资料独家

金属热处理

联系我们

全国免费服务热线

183-0621-3896

黄大仙玄机资料独家DIANHUA:0512-58717068

黄大仙玄机资料独家CHUANZHEN:0512-58717068

黄大仙玄机资料独家YOUXIANG:kskk2009@126.com

黄大仙玄机资料独家WANGZHI:xzork.com

DIZHI:ZHANGJIAGANGSHIDAXINZHENXINCHUANGLUKEJIYUAN


热处理的工艺有哪些

您的当前位置: 首 页 >> 新闻资讯 >> 行业新闻

热处理的工艺有哪些

发布日期:2019-10-11 作者: 点击:

RECHULIDEGONGYIYOUNAXIE

u=399068598,1184701760&fm=26&gp=0.jpg

  热处理工艺一般包括加热、保温、冷却三个过程,有时只有加热和冷却两个过程。这些过程互相衔接,不可间断。加热是热处理的重要工序之一。金属热处理的加热方法很多,最早是采用木炭和煤作为热源,近而应用液体和气体燃料。电的应用使加热易于控制,且无环境污染。利用这些热源可以直接加热,也可以通过熔融的盐或金,以至浮动粒子进行间接加热。金属加热时,工件暴露在空气中,常常发生氧化、脱碳(即钢铁零件表面碳含量降低),这对于热处理后零件的表面性能有很不利的影响。因而金属通常应在可控气氛或保护气氛中、熔融盐中和真空中加热,也可用涂料或包装方法进行保护加热。加热温度是热处理工艺的重要工艺参数之一,选择和控制加热温度,是保证热处理质量的主要问题。加热温度随被处理的金属材料和热处理的目的不同而异,但一般都是加热到相变温度以上,以获得高温组织。另外转变需要一定的时间,因此当金属工件表面达到要求的加热温度时,还须在此温度保持一定时间,使内外温度一致,使显微组织转变完全,这段时间称为保温时间。采用高能密度加热和表面热处理时,加热速度极快,一般就没有保温时间,而化学热处理的保温时间往往较长。

黄大仙玄机资料独家  LENGQUEYESHIRECHULIGONGYIGUOCHENGZHONGBUKEQUESHAODEBUZHOU,LENGQUEFANGFAYINGONGYIBUTONGERBUTONG,ZHUYAOSHIKONGZHILENGQUESUDU。YIBANTUIHUODELENGQUESUDUZUIMAN,ZHENGHUODELENGQUESUDUJIAOKUAI,CUIHUODELENGQUESUDUGENGKUAI。DANHAIYINGANGZHONGBUTONGERYOUBUTONGDEYAOQIU,LIRUKONGYINGGANGJIUKEYIYONGZHENGHUOYIYANGDELENGQUESUDUJINXINGCUIYING。

  GONGYIFENLEI

黄大仙玄机资料独家  JINSHURECHULIGONGYIDATIKEFENWEIZHENGTIRECHULI、BIAOMIANRECHULIHEHUAXUERECHULISANDALEI。GENJUJIAREJIEZHI、JIAREWENDUHELENGQUEFANGFADEBUTONG,MEIYIDALEIYOUKEQUFENWEIRUOGANBUTONGDERECHULIGONGYI。TONGYIZHONGJINSHUCAIYONGBUTONGDERECHULIGONGYI,KEHUODEBUTONGDEZUZHI,CONGERJUYOUBUTONGDEXINGNENG。GANGTIESHIGONGYESHANGYINGYONGZUIGUANGDEJINSHU,ERQIEGANGTIEXIANWEIZUZHIYEZUIWEIFUZA,YINCIGANGTIERECHULIGONGYIZHONGLEIFANDUO。ZHENGTIRECHULISHIDUIGONGJIANZHENGTIJIARE,RANHOUYISHIDANGDESUDULENGQUE,HUODEXUYAODEJINXIANGZUZHI,YIGAIBIANQIZHENGTILIXUEXINGNENGDEJINSHURECHULIGONGYI。GANGTIEZHENGTIRECHULIDAZHIYOUTUIHUO、ZHENGHUO、CUIHUOHEHUIHUOSIZHONGJIBENGONGYI。


  工艺手段

  TUIHUOSHIJIANGGONGJIANJIAREDAOSHIDANGWENDU,GENJUCAILIAOHEGONGJIANCHICUNCAIYONGBUTONGDEBAOWENSHIJIAN,RANHOUJINXINGHUANMANLENGQUE,MUDESHISHIJINSHUNEIBUZUZHIDADAOHUOJIEJINPINGHENGZHUANGTAI,HUODELIANGHAODEGONGYIXINGNENGHESHIYONGXINGNENG,HUOZHEWEIJINYIBUCUIHUOZUOZUZHIZHUNBEI。ZHENGHUOSHIJIANGGONGJIANJIAREDAOSHIYIDEWENDUHOUZAIKONGQIZHONGLENGQUE,ZHENGHUODEXIAOGUOTONGTUIHUOXIANGSI,ZHISHIDEDAODEZUZHIGENGXI,CHANGYONGYUGAISHANCAILIAODEQIEXUEXINGNENG,YEYOUSHIYONGYUDUIYIXIEYAOQIUBUGAODELINGJIANZUOWEIZUIZHONGRECHULI。CUIHUOSHIJIANGGONGJIANJIAREBAOWENHOU,ZAISHUI、YOUHUOQITAWUJIYAN、YOUJISHUIRONGYEDENGCUIHUOJIEZHIZHONGKUAISULENGQUE。CUIHUOHOUGANGJIANBIANYING,DANTONGSHIBIANCUI,WEILEJISHIXIAOCHUCUIXING,YIBANXUYAOJISHIHUIHUO。WEILEJIANGDIGANGJIANDECUIXING,JIANGCUIHUOHOUDEGANGJIANZAIGAOYUSHIWENERDIYU650℃DEMOUYISHIDANGWENDUJINXINGZHANGSHIJIANDEBAOWEN,ZAIJINXINGLENGQUE,ZHEIZHONGGONGYICHENGWEIHUIHUO。

  退火、正火、淬火、回火是整体热处理中的“四把火”,其中的淬火与回火关系密切,常常配合使用,缺一不可。“四把火”随着加热温度和冷却方式的不同,又演变出不同的热处理工艺。为了获得一定的强度和韧性,把淬火和高温回火结合起来的工艺,称为调质。某些合金淬火形成过饱和固溶体后,将其置于室温或稍高的适当温度下保持较长时间,以提高合金的硬度、强度或电性磁性等。这样的热处理工艺称为时效处理。把压力加工形变与热处理有效而紧密地结合起来进行,使工件获得很好的强度、韧性配合的方法称为形变热处理;在负压气氛或真空中进行的热处理称为真空热处理,它不仅能使工件不氧化,不脱碳,保持处理后工件表面光洁,提高工件的性能,还可以通入渗剂进行化学热处理。表面热处理是只加热工件表层,以改变其表层力学性能的金属热处理工艺。为了只加热工件表层而不使过多的热量传入工件内部,使用的热源须具有高的能量密度,即在单位面积的工件上给予较大的热能,使工件表层或局部能短时或瞬时达到高温。表面热处理的主要方法有火焰淬火和感应加热热处理,常用的热源有氧乙炔或氧丙烷等火焰、感应电流、激光和电子束等。化学热处理是通过改变工件表层化学成分、组织和性能的金属热处理工艺。化学热处理与表面热处理不同之处是前者改变了工件表层的化学成分。化学热处理是将工件放在含碳、盐类介质或其它合金元素的介质(气体、液体、固体)中加热,保温较长时间,从而使工件表层渗入碳、氮、硼和铬等元素。渗入元素后,有时还要进行其它热处理工艺如淬火及回火。化学热处理的主要方法有渗碳黄大仙玄机资料独家、渗氮、渗金属。热处理是机械零件和工模具制造过程中的重要工序之一。大体来说,它可以保证和提高工件的各种性能 ,如耐磨、耐腐蚀等。还可以改善毛坯的组织和应力状态,以利于进行各种冷、热加工。例如白口铸铁经过长时间退火处理可以获得可锻铸铁,提高塑性 ;齿轮采用正确的热处理工艺,使用寿命可以比不经热处理的齿轮成倍或几十倍地提高;另外,价廉的碳钢通过渗入某些合金元素就具有某些价昂的合金钢性能,可以代替某些耐热钢、不锈钢;工模具则几乎全部需要经过热处理方可使用。

  ZHENKONGFANGFA

黄大仙玄机资料独家  YINWEIJINSHUGONGJIANDEJIARE、LENGQUEDENGCAOZUO,XUYAOSHIJIGESHENZHIJISHIGEDONGZUOLAIWANCHENG。ZHEIXIEDONGZUONEIZAIZHENKONGRECHULILUNEIJINXING,CAOZUORENYUANWUFAJIEJIN,YINCIDUIZHENKONGRECHULIDIANLUDEZIDONGHUACHENGDUDEYAOQIUJIAOGAO。TONGSHI,YOUXIEDONGZUO,RUJIAREBAOWENJIESHUHOU,JINSHUGONGJIANJINXINGCUIHUOGONGXUXULIU、QIGEDONGZUOBINGQIEYAOZAI15MIAOZHONGYINEIWANCHENG。ZHEIYANGMINJIEDETIAOJIANLAIWANCHENGXUDUODONGZUO,HENRONGYIZAOCHENGCAOZUORENYUANDEJINZHANGERGOUCHENGWUCAOZUO。YINCI,ZHIYOUJIAOGAODEZIDONGHUACAINENGZHUNQUE、JISHIANCHENGXUXIEDIAO。JINSHULINGJIANJINXINGZHENKONGRECHULIJUNZAIMIBIDEZHENKONGLUNEIJINXING,YANGEDEZHENKONGMIFENGZHONGSUOZHOUZHI。YINCI,HUODEHEJIANCHILUZIYUANDINGDELOUQILV,BAOZHENGZHENKONGLUDEGONGZUOZHENKONGDU,DUIQUEBAOLINGJIANZHENKONGRECHULIDEZHILIANGYOUZHEFEICHANGZHUYAODEYIYI。SUOYIZHENKONGRECHULILUDEYIGEGUANJIANWENTI,JIUSHIYAOYOUKEKAODEZHENKONGMIFENGGOUZAO。WEILEBAOZHENGZHENKONGLUDEZHENKONGXINGNENG,ZHENKONGRECHULILUJIEGOUSHEJIZHONGBIXUDAOXUNYIGEJIBENYUANZE,JIUSHILUTIYAOCAIYONGQIMIHANJIE,TONGSHIZAILUTISHANGJINLIANGSHAOKAIHUOZHEBUKAIKONG,SHAOCAIYONGHUOZHEBIMIANCAIYONGDONGMIFENGJIEGOU,YIJINLIANGJIANSHAOZHENKONGXIELUDEJIYU。ANZHUANGZAIZHENKONGLUTISHANGDEBUJIAN、FUJIANDENGRUSHUILENGDIANJI、REDIANOUDAOCHUZHUANGZHIYEDOUBIXUSHEJIMIFENGGOUZAO。DABUFENJIAREYUGERECAILIAOZHINENGZAIZHENKONGZHUANGTAIXIASHIYONG。ZHENKONGRECHULILUDEJIAREYUGERECHENLIAOSHIZAIZHENKONGYUGAOWENXIAGONGZUODE,YINERDUIZHEIXIECAILIAOTICHULENAIGAOWEN,FUSHECHENGGUOHAO,DAOREXISHUXIAODENGYAOQIU。DUIKANGYANGHUAXINGNENGYAOQIUBUGAO。SUOYI,ZHENKONGRECHULILUGUANGFANCAIYONGLETAN、WU、MUHESHIMODENGZUOJIAREYUGEREGOULIAO。ZHEIXIECAILIAOZAIDAQIZHUANGTAIXIAJIYIYANGHUA,YINCI,PUTONGRECHULILUBUNENGCAIYONGZHEIXIEJIAREYUGERECAILIAO。SHUILENGZHUANGZHI:ZHENKONGRECHULILUDELUQIAO、LUGAI、DIANREYUANJIAN、SHUILENGDIANJI、ZHONGJIANZHENKONGGEREMENDENGBUJIAN,JUNZAIZHENKONG、SHOUREZHUANGTAIXIAGONGZUO。ZAIZHEIZHONGJIWEIBULIDETIAOJIANXIAGONGZUO,BIXUBAOZHENGGEBUJIANDEJIEGOUBUBIANXING、BUSUNHUAI,ZHENKONGMIFENGQUANBUGUORE、BUSHAOHUI。YINCI,GEBUJIANYINGGAIGENJUBUTONGDEQINGKUANGSHEZHISHUILENGZHUANGZHI,YIBAOZHENGZHENKONGRECHULILUNENGGOUZHENGCHANGYUNXINGBINGYOUZUGOUDELIYONGSHOUMING。CAIYONGDIDIANYADADIANLIU:ZHENKONGRONGQINEI,DANGZHENKONGKONGDUWEIJITUOYIlxlo-1TUODEFANWEINEISHI,ZHENKONGRONGQINEIDETONGDIANDAOTIZAIJIAOGAODEDIANYAXIA,HUICHANSHENGHUIGUANGFANGDIANXIANXIANG。ZAIZHENKONGRECHULILUNEI,YANZHONGDEHUGUANGFANGDIAN HUISHAOHUIDIANREYUANJIAN、GERECENGDENG,ZAOCHENGZHONGDASHIGUHESUNSHI。YINCI,ZHENKONGRECHULILUDEDIANREYUANJIANDEGONGZUODIANYAYIBANDOUBUCHAOGUO80YI100FU。TONGSHIZAIDIANREYUANJIANJIEGOUSHEJISHIYAOCAIQUYOUXIAOBANFA,RUJINLIANGBIMIANYOUJIANDUANDEBUJIAN,DIANJIJIANDEJIANJUBUNENGTAIXIAO,YIFANGZHIHUIGUANGFANGDIANHUOZHEHUGUANGFANGDIANDECHANSHENG。


  子工艺

  TUIHUO RECHULILIUHUA RECHULIYINGHUA RECHULIXIAOCHUYINGLI RECHULI。

  BIAOMIANCUIHUO

  BIAOMIANCUIHUOHUIHUORECHULITONGCHANGYONGGANYINGJIAREHUOHUOYANJIAREDEFANGSHIJINXING。ZHUYAOJISHUCANSHUSHIBIAOMIANYINGDU、JUBUYINGDUHEYOUXIAOYINGHUACENGSHENDU。YINGDUJIANCEKECAIYONGWEISHIYINGDUJI,YEKECAIYONGLUOSHIHUOBIAOMIANLUOSHIYINGDUJI。SHIYANLI(BIAOCHI)DEXUANZEYUYOUXIAOYINGHUACENGSHENDUHEGONGJIANBIAOMIANYINGDUYOUGUAN。ZHEILISHEJIDAOSANZHONGYINGDUJI。YI、WEISHIYINGDUJISHICESHIRECHULIGONGJIANBIAOMIANYINGDUDEZHONGYAOSHOUDUAN,TAKEXUANYONG0.5~100kgDESHIYANLI,CESHIBOZHI0.05mmHOUDEBIAOMIANYINGHUACENG,TADEJINGDUSHIDE,KEFENBIANCHURECHULIGONGJIANBIAOMIANYINGDUDEWEIXIAOCHABIE。LINGWAI,YOUXIAOYINGHUACENGSHENDUYEYAOYOUWEISHIYINGDUJILAIJIANCE,SUOYI,DUIYUJINXINGBIAOMIANRECHULIJIAGONGHUODALIANGSHIYONGBIAOMIANRECHULIGONGJIANDEDANWEI,PEIBEIYITAIWEISHIYINGDUJISHIYOUBIYAODE。ER、BIAOMIANLUOSHIYINGDUJIYESHISHIFENSHIYUCESHIBIAOMIANCUIHUOGONGJIANYINGDUDE,BIAOMIANLUOSHIYINGDUJIYOUSANZHONGBIAOCHIKEYIXUANZE。KEYICESHIYOUXIAOYINGHUASHENDUCHAOGUO0.1mmDEGEZHONGBIAOMIANYINGHUAGONGJIAN。JINGUANBIAOMIANLUOSHIYINGDUJIDEJINGDUMEIYOUWEISHIYINGDUJIGAO,DANSHIZUOWEIRECHULIGONGCHANGZHILIANGGUANLIHEHEGEJIANCHADEJIANCESHOUDUAN,YIJINGNENGGOUMANZUYAOQIU。KUANGQIETAHAIJUYOUCAOZUOJIANDAN、SHIYONGFANGBIAN、JIAGEJIAODI,CELIANGXUNSU、KEZHIJIEDUQUYINGDUZHIDENGTEDIAN,LIYONGBIAOMIANLUOSHIYINGDUJIKEDUICHENGPIDEBIAOMIANRECHULIGONGJIANJINXINGKUAISUWUSUNDEZHUJIANJIANCE。ZHEIYIDIANDUIYUJINSHUJIAGONGHEJIXIEZHIZAOGONGCHANGJUYOUZHONGYAOYIYI。SAN、DANGBIAOMIANRECHULIYINGHUACENGJIAOHOUSHI,YEKECAIYONGLUOSHIYINGDUJI。DANGRECHULIYINGHUACENGHOUDUZAI0.4~0.8mmSHI,KECAIYONGHRABIAOCHI,DANGYINGHUACENGHOUDUCHAOGUO0.8mmSHI,KECAIYONGHRCBIAOCHI。WEISHI、LUOSHIHEBIAOMIANLUOSHISANZHONGYINGDUZHIKEYIFANGBIANDIJINXINGXIANGHUHUANSUAN,ZHUANHUANCHENGBIAOZHUN、TUZHIHUOYONGHUXUYAODEYINGDUZHI。XIANGYINGDEHUANSUANBIAOZAIGUOJIBIAOZHUNISO、MEIGUOBIAOZHUNASTMHEZHONGGUOBIAOZHUNGB/TZHONGDOUYIJICHU。

  JUBUCUIHUO

黄大仙玄机资料独家  LINGJIANRUGUOJUBUYINGDUYAOQIUJIAOGAO,KEYONGGANYINGJIAREDENGFANGSHIJINXINGJUBUCUIHUORECHULI,ZHEIYANGDELINGJIANTONGCHANGYAOZAITUZHISHANGBIAOCHUJUBUCUIHUORECHULIDEWEIZHIHEJUBUYINGDUZHI。LINGJIANDEYINGDUJIANCEYAOZAIZHIDINGQUYUNEIJINXING。YINGDUJIANCEYIQIKECAIYONGLUOSHIYINGDUJI,CESHIHRCYINGDUZHI,RURECHULIYINGHUACENGJIAOQIAN,KECAIYONGBIAOMIANLUOSHIYINGDUJI,CESHIHRNYINGDUZHI。

  HUAXUERECHULI

  HUAXUERECHULISHISHIGONGJIANBIAOMIANSHENRUYIZHONGHUOJIZHONGHUAXUEYUANSUDEYUANZI,CONGERGAIBIANGONGJIANBIAOMIANDEHUAXUECHENGFEN、ZUZHIHEXINGNENG。JINGCUIHUOHEDIWENHUIHUOHOU,GONGJIANBIAOMIANJUYOUGAODEYINGDU、NAIMOXINGHEJIECHUPILAOQIANGDU,ERGONGJIANDEXINBUYOUJUYOUGAODEQIANGRENXING。

  WENDUYALI

  GENJUYISHANGSUOSHUODENEIRONG,ZAIRECHULIGUOCHENGZHONGDUIWENDUDEJIANCEHEJILUFEICHANGZHONGYAO,WENDUKONGZHIDEBUHAODUICHANPINDEYINGXIANGSHIFENDA。SUOYI,WENDUDEJIANCESHIFENZHONGYAO,ZAIZHENGGEGUOCHENGDEWENDUBIANHUAQUSHIYEXIANDESHIFENZHONGYAO,DAOZHIZAIRECHULIDEGUOCHENGZHONGBIXUDUIWENDUDEBIANHUAJINXINGJILU,KEYIFANGBIANYIHOUJINXINGSHUJUFENXI,YEKEYICHAKANDAODISHINADUANSHIJIANWENDUMEIYOUDADAOYAOQIU。ZHEIYANGDUIYIHOUDERECHULIJINXINGGAIJINQIDAOFEICHANGDADEZUOYONG。

  CAOZUOGUICHENG

黄大仙玄机资料独家  1、QINGLIHAOCAOZUOCHANGDI,JIANCHADIANYUAN、CELIANGYIBIAOHEGEZHONGKAIGUANSHIFOUZHENGCHANG,SHUIYUANSHIFOUTONGCHANG。

  2、CAOZUORENYUANYINGCHUANDAIHAOLAOBAOFANGHUYONGPIN,FOUZEHUIYOUWEIXIAN。

  3、KAIQIKONGZHIDIANYUANWANNENGZHUANHUANKAIGUAN,GENJUSHEBEIJISHUYAOQIUFENJIDUANSHENG、JIANGWEN,YANZHANGSHEBEISHOUMINGHESHEBEIWANHAO。

黄大仙玄机资料独家  4、YAOZHUYIRECHULILUDELUWENHEWANGDAIDIAOSU,NENGZHANGWODUIBUTONGCAILIAOSUOXUDEWENDUBIAOZHUN,QUEBAOGONGJIANYINGDUJIBIAOMIANPINGZHIDUHEYANGHUACENG,BINGRENZHENZUOHAOANQUANGONGZUO。

  5、YAOZHUYIHUIHUOLUDELUWENHEWANGDAIDIAOSU,KAIQIPAIFENG,SHIGONGJIANJINGHUIHUOHOUDADAOZHILIANGYAOQIU。

黄大仙玄机资料独家  6、ZAIGONGZUOZHONGYINGJIANSHOUGANGWEI。

黄大仙玄机资料独家  7、YAOPEIZHIBIYAODEXIAOFANGQIJU,BINGSHUSHISHIYONGJIBAOYANGFANGFA。

黄大仙玄机资料独家  8、TINGJISHI,YAOJIANCHAGEKONGZHIKAIGUANJUNCHUYUGUANBIZHUANGTAIHOU,GUANBIWANNENGZHUANHUANKAIGUAN。


相关标签:金属热处理

最近浏览:

热推产品  |  主营区域: 上海 南京 广州 长沙 北京 武汉 重庆 深圳 杭州 天津
在线客服
二维码

扫描二维码

分享