(?)　(?)磨(Mo)损(Sun)是(Shi)由(You)于(Yu)摩(Mo)擦(Ca)面(Mian)造(Zao)成(Cheng)表(Biao)面(Mian)材(Cai)料(Liao)被(Bei)消(Xiao)除(Chu)的(De)一(Yi)种(Zhong)现(Xian)象(Xiang),致(Zhi)使(Shi)零(Ling)件(Jian)产(Chan)生(Sheng)逐(Zhu)渐(Jian)累(Lei)积(Ji)的(De)尺(Chi)寸(Cun)和(He)形(Xing)状(Zhuang)的(De)变(Bian)化(Hua),这(Zhe)会(Hui)降(Jiang)低(Di)精(Jing)密(Mi)加(Jia)工(Gong)零(Ling)件(Jian)在(Zai)服(Fu)役(Yi)过(Guo)程(Cheng)中(Zhong)的(De)精(Jing)度(Du)。(?)金(Jin)属(Shu)由(You)于(Yu)受(Shou)环(Huan)境(Jing)的(De)影(Ying)响(Xiang)在(Zai)表(Biao)面(Mian)生(Sheng)成(Cheng)非(Fei)金(Jin)属(Shu)性(Xing)的(De)腐(Fu)蚀(Shi)生(Sheng)成(Cheng)物(Wu),致(Zhi)使(Shi)表(Biao)面(Mian)金(Jin)属(Shu)不(Bu)断(Duan)消(Xiao)耗(Hao),降(Jiang)低(Di)了(Liao)表(Biao)面(Mian)质(Zhi)量(Liang)和(He)精(Jing)度(Du)。(?)提(Ti)高(Gao)精(Jing)密(Mi)加(Jia)工(Gong)件(Jian)的(De)耐(Nai)磨(Mo)性(Xing)、(?)耐(Nai)蚀(Shi)性(Xing)对(Dui)其(Qi)使(Shi)用(Yong)寿(Shou)命(Ming)是(Shi)十(Shi)分(Fen)重(Zhong)要(Yao)的(De)。(?)由(You)于(Yu)磨(Mo)损(Sun)、(?)腐(Fu)蚀(Shi)是(Shi)发(Fa)生(Sheng)在(Zai)零(Ling)件(Jian)的(De)表(Biao)面(Mian),采(Cai)用(Yong)表(Biao)面(Mian)处(Chu)理(Li)技(Ji)术(Shu)来(Lai)提(Ti)高(Gao)耐(Nai)磨(Mo)性(Xing)、(?)耐(Nai)蚀(Shi)性(Xing)是(Shi)既(Ji)经(Jing)济(Ji)又(You)有(You)效(Xiao)的(De)工(Gong)艺(Yi)措(Cuo)施(Shi)。(?)常(Chang)用(Yong)的(De)表(Biao)面(Mian)处(Chu)理(Li)技(Ji)术(Shu)有(You)表(Biao)面(Mian)淬(Cui)火(Huo)、(?)化(Hua)学(Xue)热(Re)处(Chu)理(Li)、(?)涂(Tu)层(Ceng)、(?)镀(Du)层(Ceng)等(Deng)。(?)
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　(?)　(?)表(Biao)面(Mian)淬(Cui)火(Huo)是(Shi)快(Kuai)速(Su)加(Jia)热(Re)钢(Gang)件(Jian)表(Biao)面(Mian)至(Zhi)奥(Ao)氏(Shi)体(Ti)化(Hua)温(Wen)度(Du)并(Bing)淬(Cui)火(Huo),仅(Jin)抛(Pao)光(Guang)机(Ji)表(Biao)面(Mian)得(De)到(Dao)硬(Ying)化(Hua),而(?)心(Xin)部(Bu)仍(Reng)保(Bao)留(Liu)表(Biao)面(Mian)淬(Cui)火(Huo)前(Qian)的(De)状(Zhuang)态(Tai)。(?)这(Zhe)种(Zhong)热(Re)处(Chu)理(Li)工(Gong)艺(Yi)主(Zhu)要(Yao)用(Yong)于(Yu)中(Zhong)碳(Tan)钢(Gang),表(Biao)面(Mian)淬(Cui)火(Huo)前(Qian)材(Cai)料(Liao)一(Yi)般(Ban)先(Xian)进(Jin)行(Xing)调(Diao)质(Zhi)处(Chu)理(Li),表(Biao)面(Mian)淬(Cui)火(Huo)后(Hou)表(Biao)面(Mian)硬(Ying)度(Du)高(Gao),耐(Nai)磨(Mo)性(Xing)***,而(?)心(Xin)部(Bu)保(Bao)持(Chi)原(Yuan)有(You)的(De)强(Qiang)度(Du)和(He)韧(Ren)性(Xing),有(You)抗(Kang)冲(Chong)击(Ji)载(Zai)荷(He)的(De)能(Neng)力(Li)。(?)与(Yu)整(Zheng)体(Ti)淬(Cui)火(Huo)相(Xiang)比(Bi),表(Biao)面(Mian)淬(Cui)火(Huo)变(Bian)形(Xing)要(Yao)小(Xiao)。(?)按(An)照(Zhao)加(Jia)热(Re)方(Fang)法(Fa)的(De)不(Bu)同(Tong),淬(Cui)火(Huo)有(You)高(Gao)频(Pin)表(Biao)面(Mian)淬(Cui)火(Huo)、(?)火(Huo)焰(Yan)表(Biao)面(Mian)淬(Cui)、(?)电(Dian)接(Jie)触(Chu)加(Jia)热(Re)表(Biao)面(Mian)淬(Cui)火(Huo)和(He)激(Ji)光(Guang)表(Biao)面(Mian)淬(Cui)火(Huo)等(Deng)。(?)
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　(?)　(?)(1)高(Gao)频(Pin)表(Biao)面(Mian)粹(Cui)火(Huo)　(?)高(Gao)频(Pin)表(Biao)面(Mian)淬(Cui)火(Huo)是(Shi)利(Li)用(Yong)高(Gao)频(Pin)感(Gan)应(Ying)电(Dian)流(Liu)的(De)趋(Qu)肤(Fu)效(Xiao)应(Ying)使(Shi)钢(Gang)制(Zhi)零(Ling)件(Jian)表(Biao)面(Mian)迅(Xun)速(Su)加(Jia)
　(?)　(?)热(Re)至(Zhi)淬(Cui)火(Huo)温(Wen)度(Du),随(Sui)即(Ji)淬(Cui)火(Huo)的(De)方(Fang)法(Fa)。(?)表(Biao)面(Mian)淬(Cui)火(Huo)后(Hou)要(Yao)进(Jin)行(Xing)低(Di)温(Wen)回(Hui)火(Huo),硬(Ying)度(Du)可(Ke)达(Da)58-61HRC。(?)高(Gao)频(Pin)表(Biao)面(Mian)淬(Cui)火(Huo)生(Sheng)产(Chan)率(Lu)高(Gao),易(Yi)于(Yu)自(Zi)动(Dong)控(Kong)制(Zhi),但(Dan)设(She)备(Bei)较(Jiao)贵(Gui)。(?)在(Zai)精(Jing)密(Mi)加(Jia)工(Gong)中(Zhong)得(De)到(Dao)广(Guang)泛(Fan)应(Ying)用(Yong),如(Ru)齿(Chi)轮(Lun)、(?)主(Zhu)轴(Zhou)床(Chuang)身(Shen)导(Dao)轨(Gui)和(He)滚(Gun)珠(Zhu)丝(Si)杠(Gang)等(Deng)。(?)
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　(?)　(?)(2)火(Huo)焰(Yan)表(Biao)面(Mian)淬(Cui)火(Huo)　(?)火(Huo)焰(Yan)表(Biao)面(Mian)淬(Cui)火(Huo)是(Shi)用(Yong)氧(Yang)乙(Yi)炔(Que)火(Huo)焰(Yan)将(Jiang)钢(Gang)件(Jian)表(Biao)面(Mian)迅(Xun)速(Su)加(Jia)热(Re)至(Zhi)掉(Diao)火(Huo)温(Wen)度(Du),随(Sui)即(Ji)淬(Cui)火(Huo)的(De)方(Fang)法(Fa)。(?)表(Biao)面(Mian)淬(Cui)火(Huo)后(Hou)要(Yao)进(Jin)行(Xing)低(Di)温(Wen)回(Hui)火(Huo),硬(Ying)度(Du)可(Ke)达(Da)58~6HRC。(?)主(Zhu)要(Yao)用(Yong)于(Yu)大(Da)件(Jian)或(Huo)修(Xiu)复(Fu)零(Ling)件(Jian)的(De)表(Biao)面(Mian)淬(Cui)火(Huo)。(?)
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　(?)　(?)(3)电(Dian)接(Jie)触(Chu)加(Jia)热(Re)表(Biao)面(Mian)淬(Cui)火(Huo)　(?)电(Dian)接(Jie)触(Chu)加(Jia)热(Re)表(Biao)面(Mian)淬(Cui)火(Huo)是(Shi)利(Li)用(Yong)电(Dian)流(Liu)通(Tong)过(Guo)电(Dian)极(Ji)与(Yu)工(Gong)件(Jian)表(Biao)面(Mian)的(De)接(Jie)触(Chu)电(Dian)阻(Zu)来(Lai)迅(Xun)速(Su)加(Jia)热(Re)工(Gong)件(Jian)表(Biao)面(Mian)至(Zhi)淬(Cui)火(Huo)温(Wen)度(Du),随(Sui)着(Zhuo)电(Dian)极(Ji)的(De)移(Yi)开(Kai),借(Jie)助(Zhu)工(Gong)件(Jian)本(Ben)身(Shen)的(De)热(Re)传(Chuan)导(Dao)进(Jin)行(Xing)自(Zi)激(Ji)冷(Leng)却(Que)达(Da)到(Dao)表(Biao)面(Mian)淬(Cui)火(Huo)的(De)目(Mu)的(De)。(?)主(Zhu)要(Yao)用(Yong)于(Yu)车(Che)床(Chuang)、(?)镗(Tang)床(Chuang)、(?)龙(Long)门(Men)刨(Pao)床(Chuang)等(Deng)导(Dao)轨(Gui)的(De)表(Biao)面(Mian)淬(Cui)火(Huo)。(?)
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　(?)　(?)(4)激(Ji)光(Guang)表(Biao)面(Mian)淬(Cui)火(Huo)　(?)激(Ji)光(Guang)表(Biao)面(Mian)淬(Cui)火(Huo)是(Shi)用(Yong)激(Ji)光(Guang)束(Shu)扫(Sao)描(Miao)工(Gong)件(Jian)表(Biao)面(Mian),高(Gao)能(Neng)量(Liang)密(Mi)度(Du)的(De)红(Hong)外(Wai)线(Xian)能(Neng)使(Shi)工(Gong)件(Jian)表(Biao)面(Mian)急(Ji)剧(Ju)升(Sheng)温(Wen)至(Zhi)淬(Cui)火(Huo)温(Wen)度(Du),随(Sui)着(Zhuo)激(Ji)光(Guang)束(Shu)移(Yi)开(Kai),通(Tong)过(Guo)热(Re)传(Chuan)导(Dao)自(Zi)激(Ji)冷(Leng)却(Que),使(Shi)表(Biao)面(Mian)淬(Cui)火(Huo)。(?)由(You)于(Yu)加(Jia)热(Re)速(Su)度(Du)很(Hen)快(Kuai),加(Jia)热(Re)层(Ceng)较(Jiao)薄(Bao),冷(Leng)却(Que)速(Su)度(Du)也(Ye)极(Ji)大(Da),与(Yu)高(Gao)表(Biao)面(Mian)粹(Cui)火(Huo)相(Xiang)比(Bi)组(Zu)织(Zhi)细(Xi),硬(Ying)度(Du)高(Gao),变(Bian)形(Xing)小(Xiao),但(Dan)硬(Ying)化(Hua)层(Ceng)浅(Qian)。(?)主(Zhu)要(Yao)用(Yong)于(Yu)汽(Qi)车(Che)发(Fa)动(Dong)机(Ji)的(De)缸(Gang)套(Tao)、(?)活(Huo)塞(Sai)环(Huan)、(?)活(Huo)塞(Sai)环(Huan)槽(Cao)、(?)曲(Qu)轴(Zhou)的(De)轴(Zhou)颈(Jing),金(Jin)属(Shu)模(Mo)具(Ju)、(?)刀(Dao)具(Ju)、(?)滚(Gun)珠(Zhu)丝(Si)杠(Gang)和(He)小(Xiao)型(Xing)精(Jing)密(Mi)零(Ling)件(Jian)。(?)