热(Re)镀(Du)锌(Xin)和(He)电(Dian)镀(Du)锌(Xin)的(De)主(Zhu)要(Yao)区(Qu)别(Bie)在(Zai)于(Yu)它(Ta)们(Men)的(De)工(Gong)艺(Yi)原(Yuan)理(Li)、(?)表(Biao)面(Mian)外(Wai)观(Guan)、(?)镀(Du)层(Ceng)厚(Hou)度(Du)、(?)应(Ying)用(Yong)领(Ling)域(Yu)以(Yi)及(Ji)使(Shi)用(Yong)寿(Shou)命(Ming)。(?)

工(Gong)艺(Yi)原(Yuan)理(Li)：(?)

电(Dian)镀(Du)锌(Xin)是(Shi)通(Tong)过(Guo)电(Dian)化(Hua)学(Xue)方(Fang)法(Fa)在(Zai)钢(Gang)材(Cai)表(Biao)面(Mian)附(Fu)上(Shang)镀(Du)锌(Xin)层(Ceng)，(?)这(Zhe)是(Shi)一(Yi)种(Zhong)冷(Leng)镀(Du)过(Guo)程(Cheng)，(?)其(Qi)中(Zhong)钢(Gang)材(Cai)被(Bei)放(Fang)置(Zhi)在(Zai)通(Tong)电(Dian)的(De)液(Ye)池(Chi)中(Zhong)，(?)在(Zai)电(Dian)流(Liu)磁(Ci)场(Chang)作(Zuo)用(Yong)下(Xia)，(?)锌(Xin)原(Yuan)子(Zi)失(Shi)去(Qu)电(Dian)子(Zi)变(Bian)成(Cheng)离(Li)子(Zi)，(?)逐(Zhu)渐(Jian)吸(Xi)附(Fu)到(Dao)被(Bei)镀(Du)件(Jian)上(Shang)。(?)

热(Re)镀(Du)锌(Xin)则(Ze)是(Shi)通(Tong)过(Guo)将(Jiang)钢(Gang)材(Cai)浸(Jin)泡(Pao)在(Zai)热(Re)熔(Rong)的(De)锌(Xin)液(Ye)中(Zhong)，(?)通(Tong)过(Guo)剧(Ju)烈(Lie)的(De)高(Gao)温(Wen)化(Hua)学(Xue)反(Fan)应(Ying)过(Guo)程(Cheng)获(Huo)取(Qu)锌(Xin)层(Ceng)，(?)这(Zhe)是(Shi)一(Yi)种(Zhong)热(Re)镀(Du)过(Guo)程(Cheng)，(?)需(Xu)要(Yao)经(Jing)过(Guo)工(Gong)件(Jian)除(Chu)油(You)、(?)酸(Suan)洗(Xi)、(?)浸(Jin)药(Yao)、(?)烘(Hong)干(Gan)等(Deng)工(Gong)序(Xu)后(Hou)才(Cai)能(Neng)浸(Jin)入(Ru)熔(Rong)化(Hua)锌(Xin)液(Ye)池(Chi)中(Zhong)。(?)

表(Biao)面(Mian)外(Wai)观(Guan)：(?)

电(Dian)镀(Du)锌(Xin)的(De)表(Biao)面(Mian)相(Xiang)对(Dui)光(Guang)滑(Hua)，(?)而(?)热(Re)镀(Du)锌(Xin)的(De)表(Biao)面(Mian)较(Jiao)粗(Cu)糙(Cao)，(?)因(Yin)为(Wei)热(Re)镀(Du)锌(Xin)过(Guo)程(Cheng)中(Zhong)钢(Gang)材(Cai)直(Zhi)接(Jie)浸(Jin)泡(Pao)在(Zai)锌(Xin)液(Ye)中(Zhong)，(?)会(Hui)产(Chan)生(Sheng)工(Gong)艺(Yi)水(Shui)纹(Wen)、(?)滴(Di)瘤(Liu)等(Deng)表(Biao)现(Xian)。(?)

镀(Du)层(Ceng)厚(Hou)度(Du)：(?)

电(Dian)镀(Du)锌(Xin)的(De)镀(Du)层(Ceng)较(Jiao)薄(Bao)，(?)通(Tong)常(Chang)在(Zai)5到(Dao)30微(Wei)米(Mi)之(Zhi)间(Jian)，(?)而(?)热(Re)镀(Du)锌(Xin)的(De)镀(Du)层(Ceng)较(Jiao)厚(Hou)，(?)一(Yi)般(Ban)在(Zai)30到(Dao)60微(Wei)米(Mi)，(?)甚(Shen)至(Zhi)更(Geng)高(Gao)。(?)

应(Ying)用(Yong)领(Ling)域(Yu)：(?)

电(Dian)镀(Du)锌(Xin)多(Duo)用(Yong)于(Yu)室(Shi)内(Nei)使(Shi)用(Yong)的(De)制(Zhi)件(Jian)，(?)如(Ru)机(Ji)壳(Ke)底(Di)、(?)面(Mian)板(Ban)等(Deng)，(?)因(Yin)其(Qi)表(Biao)面(Mian)光(Guang)滑(Hua)且(Qie)镀(Du)层(Ceng)较(Jiao)薄(Bao)，(?)适(Shi)用(Yong)于(Yu)对(Dui)美(Mei)观(Guan)和(He)防(Fang)腐(Fu)蚀(Shi)要(Yao)求(Qiu)较(Jiao)高(Gao)的(De)室(Shi)内(Nei)环(Huan)境(Jing)。(?)

热(Re)镀(Du)锌(Xin)则(Ze)多(Duo)用(Yong)于(Yu)户(Hu)外(Wai)工(Gong)作(Zuo)的(De)钢(Gang)铁(Tie)制(Zhi)件(Jian)，(?)如(Ru)高(Gao)速(Su)公(Gong)路(Lu)围(Wei)栏(Lan)、(?)电(Dian)力(Li)铁(Tie)塔(Ta)等(Deng)，(?)因(Yin)其(Qi)镀(Du)层(Ceng)较(Jiao)厚(Hou)，(?)具(Ju)有(You)较(Jiao)好(Hao)的(De)防(Fang)腐(Fu)能(Neng)力(Li)，(?)适(Shi)合(He)长(Chang)期(Qi)户(Hu)外(Wai)使(Shi)用(Yong)。(?)

使(Shi)用(Yong)寿(Shou)命(Ming)：(?)

由(You)于(Yu)热(Re)镀(Du)锌(Xin)的(De)镀(Du)层(Ceng)更(Geng)厚(Hou)，(?)提(Ti)供(Gong)了(Liao)更(Geng)好(Hao)的(De)保(Bao)护(Hu)，(?)因(Yin)此(Ci)其(Qi)使(Shi)用(Yong)寿(Shou)命(Ming)通(Tong)常(Chang)比(Bi)电(Dian)镀(Du)锌(Xin)更(Geng)长(Chang)。(?)

综(Zong)上(Shang)所(Suo)述(Shu)，(?)选(Xuan)择(Ze)热(Re)镀(Du)锌(Xin)还(Huan)是(Shi)电(Dian)镀(Du)锌(Xin)取(Qu)决(Jue)于(Yu)具(Ju)体(Ti)的(De)使(Shi)用(Yong)环(Huan)境(Jing)和(He)需(Xu)求(Qiu)。(?)对(Dui)于(Yu)需(Xu)要(Yao)较(Jiao)高(Gao)防(Fang)腐(Fu)能(Neng)力(Li)和(He)较(Jiao)长(Chang)的(De)使(Shi)用(Yong)寿(Shou)命(Ming)的(De)户(Hu)外(Wai)应(Ying)用(Yong)，(?)热(Re)镀(Du)锌(Xin)是(Shi)更(Geng)合(He)适(Shi)的(De)选(Xuan)择(Ze)；(?)而(?)对(Dui)于(Yu)室(Shi)内(Nei)使(Shi)用(Yong)，(?)对(Dui)美(Mei)观(Guan)和(He)防(Fang)腐(Fu)蚀(Shi)要(Yao)求(Qiu)较(Jiao)高(Gao)的(De)场(Chang)合(He)，(?)电(Dian)镀(Du)锌(Xin)则(Ze)更(Geng)为(Wei)适(Shi)合(He)。(?)