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    路(Lu)灯(Deng)杆(Gan)冷(Leng)热(Re)镀(Du)锌(Xin)的(De)不(Bu)同(Tong)

        为(Wei)什(Shi)么(Me)要(Yao)在(Zai)金(Jin)属(Shu)表(Biao)面(Mian)镀(Du)锌(Xin)?(?)
        之(Zhi)所(Suo)以(Yi)要(Yao)在(Zai)金(Jin)属(Shu)表(Biao)面(Mian)上(Shang)镀(Du)锌(Xin),(?)主(Zhu)要(Yao)是(Shi)为(Wei)了(Liao)防(Fang)腐(Fu)。(?)其(Qi)实(Shi),(?)锌(Xin)是(Shi)一(Yi)种(Zhong)非(Fei)常(Chang)活(Huo)泼(Po)的(De)金(Jin)属(Shu),(?)容(Rong)易(Yi)氧(Yang)化(Hua),(?)但(Dan)是(Shi)氧(Yang)化(Hua)锌(Xin)不(Bu)是(Shi)像(Xiang)氧(Yang)化(Hua)铁(Tie)一(Yi)样(Yang)的(De)疏(Shu)松(Song)粉(Fen)末(Mo),(?)而(?)是(Shi)一(Yi)层(Ceng)致(Zhi)密(Mi)的(De)表(Biao)层(Ceng),(?)这(Zhe)层(Ceng)氧(Yang)化(Hua)锌(Xin)就(Jiu)阻(Zu)止(Zhi)了(Liao)内(Nei)部(Bu)的(De)锌(Xin)进(Jin)一(Yi)步(Bu)氧(Yang)化(Hua)。(?)当(Dang)镀(Du)锌(Xin)板(Ban)的(De)表(Biao)层(Ceng)损(Sun)坏(Huai),(?)露(Lu)出(Chu)内(Nei)部(Bu)的(De)铁(Tie)质(Zhi)表(Biao)面(Mian)的(De)时(Shi)候(Hou),(?)由(You)于(Yu)锌(Xin)比(Bi)铁(Tie)更(Geng)活(Huo)泼(Po),(?)所(Suo)以(Yi)根(Gen)据(Ju)电(Dian)磁(Ci)原(Yuan)理(Li),(?)锌(Xin)会(Hui)先(Xian)于(Yu)铁(Tie)氧(Yang)化(Hua),(?)从(Cong)而(?)保(Bao)护(Hu)了(Liao)铁(Tie)层(Ceng)不(Bu)会(Hui)损(Sun)坏(Huai)。(?)两(Liang)者(Zhe)综(Zong)合(He),(?)才(Cai)是(Shi)镀(Du)锌(Xin)钢(Gang)板(Ban)保(Bao)护(Hu)的(De)道(Dao)理(Li)。(?)而(?)镀(Du)锌(Xin)有(You)两(Liang)种(Zhong)方(Fang)式(Shi):(?)冷(Leng)镀(Du)锌(Xin)和(He)热(Re)镀(Du)锌(Xin)。(?)
        首(Shou)先(Xian),(?)我(Wo)们(Men)都(Du)知(Zhi)道(Dao)冷(Leng)镀(Du)锌(Xin)和(He)热(Re)镀(Du)锌(Xin)的(De)共(Gong)同(Tong)目(Mu)的(De)都(Du)是(Shi)为(Wei)了(Liao)防(Fang)腐(Fu)防(Fang)生(Sheng)锈(Xiu),(?)这(Zhe)样(Yang)能(Neng)够(Gou)更(Geng)好(Hao)的(De)保(Bao)护(Hu)路(Lu)灯(Deng)。(?)但(Dan)冷(Leng)镀(Du)锌(Xin)和(He)热(Re)镀(Du)锌(Xin)的(De)工(Gong)艺(Yi)、(?)外(Wai)观(Guan)和(He)价(Jia)格(Ge)都(Du)是(Shi)有(You)所(Suo)不(Bu)同(Tong)的(De),(?)能(Neng)够(Gou)起(Qi)到(Dao)的(De)防(Fang)腐(Fu)程(Cheng)度(Du)也(Ye)不(Bu)同(Tong)。(?)

        那(Na)什(Shi)么(Me)是(Shi)冷(Leng)镀(Du)锌(Xin)呢(Ne)?(?)
        冷(Leng)镀(Du)锌(Xin)呢(Ne),(?)就(Jiu)是(Shi)利(Li)用(Yong)电(Dian)解(Jie)设(She)备(Bei)将(Jiang)工(Gong)件(Jian)进(Jin)过(Guo)除(Chu)油(You)、(?)酸(Suan)洗(Xi)后(Hou)放(Fang)入(Ru)成(Cheng)分(Fen)为(Wei)锌(Xin)盐(Yan)的(De)溶(Rong)液(Ye)中(Zhong),(?)并(Bing)连(Lian)接(Jie)电(Dian)解(Jie)设(She)备(Bei)的(De)负(Fu)极(Ji),(?)在(Zai)工(Gong)件(Jian)的(De)对(Dui)面(Mian)放(Fang)置(Zhi)锌(Xin)板(Ban)连(Lian)接(Jie)在(Zai)电(Dian)解(Jie)设(She)备(Bei)的(De)正(Zheng)极(Ji),(?)接(Jie)通(Tong)电(Dian)源(Yuan),(?)利(Li)用(Yong)电(Dian)流(Liu)从(Cong)正(Zheng)极(Ji)向(Xiang)负(Fu)极(Ji)的(De)定(Ding)向(Xiang)移(Yi)动(Dong),(?)就(Jiu)会(Hui)在(Zai)工(Gong)件(Jian)上(Shang)沉(Chen)积(Ji)一(Yi)层(Ceng)锌(Xin)。(?)

        冷(Leng)镀(Du)锌(Xin)的(De)外(Wai)观(Guan)十(Shi)分(Fen)精(Jing)美(Mei),(?)要(Yao)比(Bi)热(Re)镀(Du)锌(Xin)精(Jing)美(Mei)许(Xu)多(Duo)。(?)但(Dan)是(Shi)冷(Leng)镀(Du)锌(Xin)的(De)防(Fang)腐(Fu)性(Xing)能(Neng)不(Bu)是(Shi)那(Na)么(Me)好(Hao)的(De),(?)因(Yin)为(Wei)它(Ta)的(De)防(Fang)腐(Fu)层(Ceng)比(Bi)较(Jiao)薄(Bao),(?)一(Yi)般(Ban)防(Fang)腐(Fu)的(De)效(Xiao)果(Guo)只(Zhi)有(You)5-20年(Nian)。(?)它(Ta)的(De)价(Jia)格(Ge)对(Dui)比(Bi)热(Re)镀(Du)锌(Xin)要(Yao)廉(Lian)价(Jia)很(Hen)多(Duo),(?)但(Dan)是(Shi)品(Pin)质(Zhi)也(Ye)没(Mei)有(You)那(Na)么(Me)好(Hao)。(?)

        那(Na)什(Shi)么(Me)是(Shi)热(Re)镀(Du)锌(Xin)呢(Ne)?(?)
        热(Re)镀(Du)锌(Xin)其(Qi)实(Shi)也(Ye)叫(Jiao)热(Re)侵(Qin)锌(Xin)或(Huo)者(Zhe)是(Shi)热(Re)侵(Qin)镀(Du)锌(Xin),(?)这(Zhe)是(Shi)一(Yi)种(Zhong)非(Fei)常(Chang)有(You)效(Xiao)的(De)防(Fang)腐(Fu)方(Fang)式(Shi)。(?)热(Re)度(Du)锌(Xin)的(De)制(Zhi)作(Zuo)过(Guo)程(Cheng)是(Shi)将(Jiang)除(Chu)锈(Xiu)后(Hou)的(De)钢(Gang)件(Jian)侵(Qin)入(Ru)400度(Du)左(Zuo)右(You)融(Rong)化(Hua)的(De)锌(Xin)液(Ye)中(Zhong),(?)使(Shi)钢(Gang)构(Gou)件(Jian)表(Biao)面(Mian)附(Fu)着(Zhuo)锌(Xin)层(Ceng),(?)从(Cong)而(?)起(Qi)到(Dao)防(Fang)腐(Fu)的(De)目(Mu)的(De)。(?)这(Zhe)其(Qi)中(Zhong)有(You)很(Hen)多(Duo)个(Ge)过(Guo)程(Cheng),(?)比(Bi)如(Ru)先(Xian)是(Shi)成(Cheng)品(Pin)酸(Suan)洗(Xi),(?)然(Ran)后(Hou)水(Shui)洗(Xi),(?)然(Ran)后(Hou)加(Jia)入(Ru)镀(Du)液(Ye)、(?)烘(Hong)干(Gan)、(?)挂(Gua)镀(Du)、(?)冷(Leng)却(Que)、(?)药(Yao)化(Hua)、(?)清(Qing)洁(Jie)、(?)打(Da)磨(Mo)等(Deng)等(Deng)。(?)
        热(Re)镀(Du)锌(Xin)的(De)外(Wai)观(Guan)虽(Sui)不(Bu)及(Ji)冷(Leng)镀(Du)锌(Xin)好(Hao)看(Kan),(?)但(Dan)是(Shi)热(Re)镀(Du)锌(Xin)的(De)防(Fang)腐(Fu)性(Xing)能(Neng)远(Yuan)远(Yuan)大(Da)于(Yu)冷(Leng)镀(Du)锌(Xin),(?)它(Ta)的(De)防(Fang)腐(Fu)能(Neng)力(Li)是(Shi)冷(Leng)镀(Du)锌(Xin)的(De)十(Shi)几(Ji)倍(Bei),(?)使(Shi)用(Yong)寿(Shou)命(Ming)也(Ye)非(Fei)常(Chang)长(Chang),(?)在(Zai)重(Zhong)工(Gong)业(Ye)区(Qu)可(Ke)以(Yi)使(Shi)用(Yong)13年(Nian),(?)在(Zai)海(Hai)洋(Yang)可(Ke)以(Yi)使(Shi)用(Yong)20年(Nian),(?)在(Zai)郊(Jiao)外(Wai)可(Ke)以(Yi)使(Shi)用(Yong)50年(Nian),(?)在(Zai)城(Cheng)市(Shi)可(Ke)以(Yi)使(Shi)用(Yong)30年(Nian)之(Zhi)久(Jiu)。(?)
    [文(Wen)章(Zhang)来(Lai)源(Yuan)网(Wang)络(Luo)仅(Jin)供(Gong)参(Can)考(Kao)交(Jiao)流(Liu)使(Shi)用(Yong),(?)如(Ru)有(You)版(Ban)权(Quan)问(Wen)题(Ti),(?)请(Qing)联(Lian)系(Xi)删(Shan)除(Chu)]

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