首(shou)先工(gong)(gong)(gong)(gong)(gong)藝(yi)區別：冷鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)也叫電(dian)(dian)(dian)(dian)(dian)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin),是(shi)利用電(dian)(dian)(dian)(dian)(dian)解設備(bei)(bei)將(jiang)工(gong)(gong)(gong)(gong)(gong)件(jian)經(jing)過除油,酸(suan)洗后(hou)放入成(cheng)(cheng)分(fen)為鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)鹽的(de)(de)溶液中,并連接(jie)電(dian)(dian)(dian)(dian)(dian)解設備(bei)(bei)的(de)(de)負(fu)極;在(zai)工(gong)(gong)(gong)(gong)(gong)件(jian)的(de)(de)對面放置(zhi)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)板連接(jie)在(zai)電(dian)(dian)(dian)(dian)(dian)解設備(bei)(bei)的(de)(de)正極,接(jie)通(tong)電(dian)(dian)(dian)(dian)(dian)源(yuan),利用電(dian)(dian)(dian)(dian)(dian)流從正極向負(fu)極的(de)(de)定向移動,就會在(zai)工(gong)(gong)(gong)(gong)(gong)件(jian)上沉積一(yi)(yi)層(ceng)(ceng)(ceng)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)。熱(re)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)是(shi)將(jiang)工(gong)(gong)(gong)(gong)(gong)件(jian)除油,酸(suan)洗,浸藥,烘干后(hou)浸入溶化的(de)(de)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)液里一(yi)(yi)定時間(jian),提出來即可。     外(wai)(wai)觀的(de)(de)區別：電(dian)(dian)(dian)(dian)(dian)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)外(wai)(wai)表比較(jiao)(jiao)光滑(hua),明亮(liang),采用彩(cai)(cai)色(se)鈍化工(gong)(gong)(gong)(gong)(gong)藝(yi)的(de)(de)電(dian)(dian)(dian)(dian)(dian)鍍(du)(du)層(ceng)(ceng)(ceng)也黃綠(lv)色(se)為主色(se),呈七彩(cai)(cai)。采用白色(se)鈍化工(gong)(gong)(gong)(gong)(gong)藝(yi)的(de)(de)電(dian)(dian)(dian)(dian)(dian)鍍(du)(du)層(ceng)(ceng)(ceng)呈青白色(se)或白色(se)呈綠(lv)光,白色(se)鈍化工(gong)(gong)(gong)(gong)(gong)藝(yi)的(de)(de) 鍍(du)(du)層(ceng)(ceng)(ceng)與陽(yang)光呈一(yi)(yi)定角(jiao)度下略(lve)顯七彩(cai)(cai)。在(zai)復雜(za)工(gong)(gong)(gong)(gong)(gong)件(jian)的(de)(de)角(jiao)棱部位容易(yi)(yi)產(chan)(chan)生(sheng)電(dian)(dian)(dian)(dian)(dian)燒而(er)成(cheng)(cheng)灰暗,該(gai)部位鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)層(ceng)(ceng)(ceng)較(jiao)(jiao)厚。在(zai)陰角(jiao)部位易(yi)(yi)形成(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)流死角(jiao)而(er)產(chan)(chan)生(sheng)欠電(dian)(dian)(dian)(dian)(dian)流灰暗區,該(gai)區域 鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)層(ceng)(ceng)(ceng)較(jiao)(jiao)薄。工(gong)(gong)(gong)(gong)(gong)件(jian)整體(ti)無鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)瘤(liu)(liu),結塊等現(xian)象。熱(re)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)外(wai)(wai)觀較(jiao)(jiao)電(dian)(dian)(dian)(dian)(dian)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)稍微(wei)粗糙,呈銀白色(se),外(wai)(wai)觀容易(yi)(yi)產(chan)(chan)生(sheng)工(gong)(gong)(gong)(gong)(gong)藝(yi)水紋和(he)少許(xu)滴瘤(liu)(liu),尤其(qi)是(shi)在(zai)工(gong)(gong)(gong)(gong)(gong)件(jian)的(de)(de)一(yi)(yi)端(duan)(duan)較(jiao)(jiao)為明顯。但熱(re)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin) 的(de)(de)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)層(ceng)(ceng)(ceng)比電(dian)(dian)(dian)(dian)(dian)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)厚幾十(shi)(shi)倍(bei),防(fang)腐蝕(shi)性(xing)能是(shi)電(dian)(dian)(dian)(dian)(dian)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)的(de)(de)幾十(shi)(shi)倍(bei)。   ;  熱(re)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼管的(de)(de)兩(liang)端(duan)(duan)有(you)(you)藍色(se)油墨印的(de)(de)箍,通(tong)體(ti)有(you)(you)執(zhi)行標準和(he)規格型號(hao);在(zai)熱(re)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼管的(de)(de)一(yi)(yi)端(duan)(duan)有(you)(you)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)針(zhen)或少許(xu)瘤(liu)(liu)掛,內(nei)外(wai)(wai)都(dou)有(you)(you)完(wan)整的(de)(de)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)層(ceng)(ceng)(ceng),外(wai)(wai)觀沒(mei)(mei)有(you)(you)冷鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)光滑(hua);冷鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)鍍(du)(du) 層(ceng)(ceng)(ceng)有(you)(you)光亮(liang),與太(tai)陽(yang)成(cheng)(cheng)一(yi)(yi)定角(jiao)度下這種光亮(liang)成(cheng)(cheng)七彩(cai)(cai),冷鍍(du)(du)鋼管孔內(nei)只有(you)(you)在(zai)兩(liang)端(duan)(duan)有(you)(you)少許(xu)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)層(ceng)(ceng)(ceng),再往里沒(mei)(mei)有(you)(you)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)層(ceng)(ceng)(ceng),冷鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)國(guo)內(nei)鋼管兩(liang)端(duan)(duan)一(yi)(yi)樣光滑(hua),****沒(mei)(mei)有(you)(you)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)瘤(liu)(liu)產(chan)(chan)生(sheng),外(wai)(wai)表沒(mei)(mei)有(you)(you)執(zhi)行標準。