热(Re)镀(Du)锌(Xin)：(?)也(Ye)叫(Jiao)热(Re)浸(Jin)锌(Xin)和(He)热(Re)浸(Jin)镀(Du)锌(Xin)：(?)是(Shi)一(Yi)种(Zhong)有(You)效(Xiao)的(De)金(Jin)属(Shu)防(Fang)腐(Fu)方(Fang)式(Shi)，(?)他(Ta)是(Shi)在(Zai)高(Gao)温(Wen)下(Xia)把(Ba)锌(Xin)锭(Ding)融(Rong)化(Hua)，(?)在(Zai)放(Fang)入(Ru)一(Yi)些(Xie)辅(Fu)助(Zhu)材(Cai)料(Liao)，(?)然(Ran)后(Hou)把(Ba)金(Jin)属(Shu)结(Jie)构(Gou)件(Jian)浸(Jin)入(Ru)镀(Du)锌(Xin)槽(Cao)中(Zhong)，(?)使(Shi)金(Jin)属(Shu)构(Gou)件(Jian)上(Shang)附(Fu)着(Zhuo)一(Yi)层(Ceng)锌(Xin)层(Ceng),从(Cong)而(?)起(Qi)到(Dao)防(Fang)腐(Fu)的(De)目(Mu)的(De)。(?)热(Re)镀(Du)锌(Xin)的(De)优(You)点(Dian)在(Zai)于(Yu)他(Ta)的(De)防(Fang)腐(Fu)能(Neng)力(Li)强(Qiang)，(?)镀(Du)锌(Xin)层(Ceng)的(De)附(Fu)着(Zhuo)力(Li)和(He)硬(Ying)度(Du)较(Jiao)好(Hao),从(Cong)而(?)起(Qi)到(Dao)防(Fang)腐(Fu)的(De)目(Mu)的(De)。(?)

冷(Leng)镀(Du)锌(Xin)：(?)就(Jiu)是(Shi)电(Dian)镀(Du)锌(Xin)，(?)上(Shang)锌(Xin)量(Liang)少(Shao)，(?)只(Zhi)有(You)10－(?)50g/m2，(?)就(Jiu)是(Shi)利(Li)用(Yong)电(Dian)解(Jie)作(Zuo)用(Yong)使(Shi)金(Jin)属(Shu)或(Huo)其(Qi)它(Ta)材(Cai)料(Liao)制(Zhi)件(Jian)的(De)表(Biao)面(Mian)附(Fu)着(Zhuo)一(Yi)层(Ceng)金(Jin)属(Shu)膜(Mo)的(De)工(Gong)艺(Yi)。(?)形(Xing)成(Cheng)均(Jun)匀(Yun)、(?)致(Zhi)密(Mi)、(?)结(Jie)合(He)力(Li)良(Liang)好(Hao)的(De)金(Jin)属(Shu)层(Ceng)的(De)过(Guo)程(Cheng)可(Ke)以(Yi)起(Qi)到(Dao)防(Fang)止(Zhi)腐(Fu)蚀(Shi),提(Ti)高(Gao)耐(Nai)磨(Mo)性(Xing)、(?)导(Dao)电(Dian)性(Xing)、(?)反(Fan)光(Guang)性(Xing)及(Ji)增(Zeng)进(Jin)美(Mei)观(Guan)等(Deng)作(Zuo)用(Yong)。(?)

2、(?)反(Fan)应(Ying)方(Fang)式(Shi)区(Qu)别(Bie)
热(Re)镀(Du)锌(Xin)是(Shi)化(Hua)学(Xue)处(Chu)理(Li),属(Shu)于(Yu)电(Dian)化(Hua)学(Xue)反(Fan)应(Ying). 热(Re)镀(Du)锌(Xin)管(Guan)是(Shi)使(Shi)熔(Rong)融(Rong)金(Jin)属(Shu)与(Yu)铁(Tie)基(Ji)体(Ti)反(Fan)应(Ying)而(?)产(Chan)生(Sheng)合(He)金(Jin)层(Ceng)，(?)从(Cong)而(?)使(Shi)基(Ji)体(Ti)和(He)镀(Du)层(Ceng)二(?)者(Zhe)相(Xiang)结(Jie)合(He)

冷(Leng)镀(Du)锌(Xin)是(Shi)物(Wu)理(Li)处(Chu)理(Li)，(?)只(Zhi)是(Shi)在(Zai)表(Biao)面(Mian)刷(Shua)一(Yi)层(Ceng)锌(Xin)，(?)所(Suo)以(Yi)锌(Xin)层(Ceng)易(Yi)脱(Tuo)落(Luo)。(?)建(Jian)筑(Zhu)施(Shi)工(Gong)中(Zhong)多(Duo)采(Cai)用(Yong)热(Re)镀(Du)锌(Xin).

3、(?)工(Gong)艺(Yi)区(Qu)别(Bie)
热(Re)镀(Du)锌(Xin)是(Shi)将(Jiang)工(Gong)件(Jian)除(Chu)油(You)、(?)酸(Suan)洗(Xi)、(?)浸(Jin)药(Yao)、(?)烘(Hong)干(Gan)后(Hou)浸(Jin)入(Ru)溶(Rong)化(Hua)的(De)锌(Xin)液(Ye)里(Li)一(Yi)定(Ding)时(Shi)间(Jian)，(?)提(Ti)出(Chu)来(Lai)即(Ji)可(Ke)。(?)

冷(Leng)镀(Du)锌(Xin)是(Shi)利(Li)用(Yong)电(Dian)解(Jie)设(She)备(Bei)将(Jiang)工(Gong)件(Jian)经(Jing)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)

4、(?)热(Re)镀(Du)锌(Xin)加(Jia)工(Gong)区(Qu)别(Bie)
镀(Du)锌(Xin)成(Cheng)品(Pin)的(De)区(Qu)别(Bie)：(?)热(Re)镀(Du)锌(Xin)外(Wai)表(Biao)没(Mei)有(You)冷(Leng)镀(Du)锌(Xin)细(Xi)腻(Ni)光(Guang)亮(Liang)，(?)镀(Du)层(Ceng)均(Jun)匀(Yun).但(Dan)锌(Xin)层(Ceng)厚(Hou)度(Du)方(Fang)面(Mian)热(Re)镀(Du)锌(Xin)是(Shi)冷(Leng)镀(Du)锌(Xin)的(De)几(Ji)十(Shi)倍(Bei)。(?)防(Fang)腐(Fu)蚀(Shi)性(Xing)能(Neng)也(Ye)是(Shi)电(Dian)镀(Du)锌(Xin)的(De)几(Ji)十(Shi)倍(Bei).

热(Re)镀(Du)锌(Xin)也(Ye)称(Cheng)热(Re)浸(Jin)锌(Xin)，(?)是(Shi)将(Jiang)钢(Gang)铁(Tie)工(Gong)件(Jian)经(Jing)过(Guo)除(Chu)油(You)、(?)除(Chu)锈(Xiu)，(?)呈(Cheng)现(Xian)出(Chu)无(Wu)污(Wu)、(?)浸(Jin)润(Run)的(De)表(Biao)面(Mian)，(?)立(Li)即(Ji)浸(Jin)入(Ru)到(Dao)预(Yu)先(Xian)将(Jiang)锌(Xin)加(Jia)热(Re)融(Rong)熔(Rong)了(Liao)的(De)镀(Du)槽(Cao)中(Zhong)去(Qu)，(?)在(Zai)工(Gong)件(Jian)表(Biao)面(Mian)形(Xing)成(Cheng)一(Yi)层(Ceng)锌(Xin)镀(Du)层(Ceng)的(De)方(Fang)法(Fa)。(?)