
一(Yi).工(Gong)艺(Yi)组(Zu)成(Cheng)
电(Dian)泳(Yong)涂(Tu)装(Zhuang)工(Gong)艺(Yi)一(Yi)般(Ban)由(You)涂(Tu)装(Zhuang)前(Qian)预(Yu)处(Chu)理(Li)、(?)电(Dian)泳(Yong)涂(Tu)装(Zhuang)、(?)电(Dian)泳(Yong)后(Hou)清(Qing)洗(Xi)、(?)电(Dian)泳(Yong)涂(Tu)膜(Mo)的(De)烘(Hong)干(Gan)等(Deng)四(Si)道(Dao)主(Zhu)要(Yao)工(Gong)艺(Yi)组(Zu)成(Cheng)。(?)
二(?).制(Zhi)作(Zuo)过(Guo)程(Cheng)
它(Ta)包(Bao)括(Kuo)四(Si)个(Ge)过(Guo)程(Cheng):(?)
1 )(?)电(Dian)解(Jie)((?)分(Fen)解(Jie))(?)
在(Zai)阴(Yin)极(Ji)反(Fan)应(Ying)***初(Chu)为(Wei)电(Dian)解(Jie)反(Fan)应(Ying),(?)生(Sheng)成(Cheng)氢(Qing)气(Qi)及(Ji)氢(Qing)氧(Yang)根(Gen)离(Li)子(Zi) OH ,(?)此(Ci)反(Fan)应(Ying)造(Zao)成(Cheng)阴(Yin)极(Ji)面(Mian)形(Xing)成(Cheng)一(Yi)高(Gao)碱(Jian)性(Xing)边(Bian)界(Jie)层(Ceng),(?)当(Dang)阳(Yang)离(Li)子(Zi)与(Yu)氢(Qing)氧(Yang)根(Gen)作(Zuo)用(Yong)成(Cheng)为(Wei)不(Bu)溶(Rong)于(Yu)水(Shui)的(De)物(Wu)质(Zhi),(?)涂(Tu)膜(Mo)沉(Chen)积(Ji),(?)方(Fang)程(Cheng)式(Shi)为(Wei):(?) H2O→OH+H
2 )(?)电(Dian)泳(Yong)动(Dong)((?)泳(Yong)动(Dong)、(?)迁(Qian)移(Yi))(?)阳(Yang)离(Li)子(Zi)树(Shu)脂(Zhi)及(Ji) H+ 在(Zai)电(Dian)场(Chang)作(Zuo)用(Yong)下(Xia),(?)向(Xiang)阴(Yin)极(Ji)移(Yi)动(Dong),(?)而(?)阴(Yin)离(Li)子(Zi)向(Xiang)阳(Yang)极(Ji)移(Yi)动(Dong)过(Guo)程(Cheng)。(?)
3 )(?)电(Dian)沉(Chen)积(Ji)((?)析(Xi)出(Chu))(?)
在(Zai)被(Bei)涂(Tu)工(Gong)件(Jian)表(Biao)面(Mian),(?)阳(Yang)离(Li)子(Zi)树(Shu)脂(Zhi)与(Yu)阴(Yin)极(Ji)表(Biao)面(Mian)碱(Jian)性(Xing)作(Zuo)用(Yong),(?)中(Zhong)和(He)而(?)析(Xi)出(Chu)不(Bu)沉(Chen)积(Ji)物(Wu),(?)沉(Chen)积(Ji)于(Yu)被(Bei)涂(Tu)工(Gong)件(Jian)上(Shang)。(?)
4 )(?)电(Dian)渗(Shen)((?)脱(Tuo)水(Shui))(?)
涂(Tu)料(Liao)固(Gu)体(Ti)与(Yu)工(Gong)件(Jian)表(Biao)面(Mian)上(Shang)的(De)涂(Tu)膜(Mo)为(Wei)半(Ban)透(Tou)明(Ming)性(Xing)的(De),(?)具(Ju)有(You)多(Duo)数(Shu)毛(Mao)细(Xi)孔(Kong),(?)水(Shui)被(Bei)从(Cong)阴(Yin)极(Ji)涂(Tu)膜(Mo)中(Zhong)排(Pai)渗(Shen)出(Chu)来(Lai),(?)在(Zai)电(Dian)场(Chang)作(Zuo)用(Yong)下(Xia),(?)引(Yin)起(Qi)涂(Tu)膜(Mo)脱(Tuo)水(Shui),(?)而(?)涂(Tu)膜(Mo)则(Ze)吸(Xi)附(Fu)于(Yu)工(Gong)件(Jian)表(Biao)面(Mian),(?)而(?)完(Wan)成(Cheng)整(Zheng)个(Ge)电(Dian)泳(Yong)过(Guo)程(Cheng)。(?)
三(San).方(Fang)法(Fa)技(Ji)巧(Qiao)
1)(?)一(Yi)般(Ban)金(Jin)属(Shu)表(Biao)面(Mian)的(De)电(Dian)泳(Yong)涂(Tu)装(Zhuang),(?)其(Qi)工(Gong)艺(Yi)流(Liu)程(Cheng)为(Wei):(?)预(Yu)清(Qing)理(Li)→上(Shang)线(Xian)→除(Chu)油(You)→水(Shui)洗(Xi)→除(Chu)锈(Xiu)→水(Shui)洗(Xi)→中(Zhong)和(He)→水(Shui)洗(Xi)→磷(Lin)化(Hua)→水(Shui)洗(Xi)→钝(Dun)化(Hua)→电(Dian)泳(Yong)涂(Tu)装(Zhuang)→槽(Cao)上(Shang)清(Qing)洗(Xi)→超(Chao)滤(Lu)水(Shui)洗(Xi)→烘(Hong)干(Gan)→下(Xia)线(Xian)。(?)
((?)2)(?)被(Bei)涂(Tu)物(Wu)的(De)底(Di)材(Cai)及(Ji)前(Qian)处(Chu)理(Li)对(Dui)电(Dian)泳(Yong)涂(Tu)膜(Mo)有(You)极(Ji)大(Da)影(Ying)响(Xiang)。(?)铸(Zhu)件(Jian)一(Yi)般(Ban)采(Cai)用(Yong)喷(Pen)砂(Sha)或(Huo)喷(Pen)丸(Wan)进(Jin)行(Xing)除(Chu)锈(Xiu),(?)用(Yong)棉(Mian)纱(Sha)清(Qing)除(Chu)工(Gong)件(Jian)表(Biao)面(Mian)的(De)浮(Fu)尘(Chen),(?)用(Yong)80#~(?)120#砂(Sha)纸(Zhi)清(Qing)除(Chu)表(Biao)面(Mian)残(Can)留(Liu)的(De)钢(Gang)丸(Wan)等(Deng)杂(Za)物(Wu)。(?)钢(Gang)铁(Tie)表(Biao)面(Mian)采(Cai)用(Yong)除(Chu)油(You)和(He)除(Chu)锈(Xiu)处(Chu)理(Li),(?)对(Dui)表(Biao)面(Mian)要(Yao)求(Qiu)过(Guo)高(Gao)时(Shi),(?)进(Jin)行(Xing)磷(Lin)化(Hua)和(He)钝(Dun)化(Hua)表(Biao)面(Mian)处(Chu)理(Li)。(?)黑(Hei)色(Se)金(Jin)属(Shu)工(Gong)件(Jian)在(Zai)阳(Yang)极(Ji)电(Dian)泳(Yong)前(Qian)必(Bi)须(Xu)进(Jin)行(Xing)磷(Lin)化(Hua)处(Chu)理(Li),(?)否(Fou)则(Ze)漆(Qi)膜(Mo)的(De)耐(Nai)腐(Fu)蚀(Shi)性(Xing)能(Neng)较(Jiao)差(Cha)。(?)磷(Lin)化(Hua)处(Chu)理(Li)时(Shi),(?)一(Yi)般(Ban)选(Xuan)用(Yong)锌(Xin)盐(Yan)磷(Lin)化(Hua)膜(Mo),(?)厚(Hou)度(Du)约(Yue)1~(?)2μm,(?)要(Yao)求(Qiu)磷(Lin)化(Hua)膜(Mo)结(Jie)晶(Jing)细(Xi)而(?)均(Jun)匀(Yun)。(?)
((?)3)(?)在(Zai)过(Guo)滤(Lu)系(Xi)统(Tong)中(Zhong),(?)一(Yi)般(Ban)采(Cai)用(Yong)一(Yi)级(Ji)过(Guo)滤(Lu),(?)过(Guo)滤(Lu)器(Qi)为(Wei)网(Wang)袋(Dai)式(Shi)结(Jie)构(Gou),(?)孔(Kong)径(Jing)为(Wei)25~(?)75μm。(?)电(Dian)泳(Yong)涂(Tu)料(Liao)通(Tong)过(Guo)立(Li)式(Shi)泵(Beng)输(Shu)送(Song)到(Dao)过(Guo)滤(Lu)器(Qi)进(Jin)行(Xing)过(Guo)滤(Lu)。(?)从(Cong)综(Zong)合(He)更(Geng)换(Huan)周(Zhou)期(Qi)和(He)漆(Qi)膜(Mo)质(Zhi)量(Liang)等(Deng)因(Yin)素(Su)考(Kao)虑(Lu),(?)孔(Kong)径(Jing)50μm的(De)过(Guo)滤(Lu)袋(Dai)******,(?)它(Ta)不(Bu)但(Dan)能(Neng)满(Man)足(Zu)漆(Qi)膜(Mo)的(De)质(Zhi)量(Liang)要(Yao)求(Qiu),(?)而(?)且(Qie)解(Jie)决(Jue)了(Liao)过(Guo)滤(Lu)袋(Dai)的(De)堵(Du)塞(Sai)问(Wen)题(Ti)。(?)
((?)4)(?)电(Dian)泳(Yong)涂(Tu)装(Zhuang)的(De)循(Xun)环(Huan)系(Xi)统(Tong)循(Xun)环(Huan)量(Liang)的(De)大(Da)小(Xiao),(?)直(Zhi)接(Jie)影(Ying)响(Xiang)着(Zhuo)槽(Cao)液(Ye)的(De)稳(Wen)定(Ding)性(Xing)和(He)漆(Qi)膜(Mo)的(De)质(Zhi)量(Liang)。(?)加(Jia)大(Da)循(Xun)环(Huan)量(Liang),(?)槽(Cao)液(Ye)的(De)沉(Chen)淀(Dian)和(He)气(Qi)泡(Pao)减(Jian)少(Shao);(?)但(Dan)槽(Cao)液(Ye)老(Lao)化(Hua)加(Jia)快(Kuai),(?)能(Neng)源(Yuan)消(Xiao)耗(Hao)增(Zeng)加(Jia),(?)槽(Cao)液(Ye)的(De)稳(Wen)定(Ding)性(Xing)变(Bian)差(Cha)。(?)将(Jiang)槽(Cao)液(Ye)的(De)循(Xun)环(Huan)次(Ci)数(Shu)控(Kong)制(Zhi)6~(?)8次(Ci)/h较(Jiao)为(Wei)理(Li)想(Xiang),(?)不(Bu)但(Dan)******漆(Qi)膜(Mo)质(Zhi)量(Liang),(?)而(?)且(Qie)确(Que)保(Bao)槽(Cao)液(Ye)的(De)稳(Wen)定(Ding)运(Yun)行(Xing)。(?)
((?)5)(?)随(Sui)着(Zhuo)生(Sheng)产(Chan)时(Shi)间(Jian)的(De)延(Yan)长(Chang),(?)阳(Yang)极(Ji)隔(Ge)膜(Mo)的(De)阻(Zu)抗(Kang)会(Hui)增(Zeng)加(Jia),(?)有(You)效(Xiao)的(De)工(Gong)作(Zuo)电(Dian)压(Ya)下(Xia)降(Jiang)。(?)因(Yin)此(Ci),(?)生(Sheng)产(Chan)中(Zhong)应(Ying)根(Gen)据(Ju)电(Dian)压(Ya)的(De)损(Sun)失(Shi)情(Qing)况(Kuang),(?)逐(Zhu)步(Bu)调(Diao)高(Gao)电(Dian)源(Yuan)的(De)工(Gong)作(Zuo)电(Dian)压(Ya),(?)以(Yi)补(Bu)偿(Chang)阳(Yang)极(Ji)隔(Ge)膜(Mo)的(De)电(Dian)压(Ya)降(Jiang)。(?)
((?)6)(?)超(Chao)滤(Lu)系(Xi)统(Tong)控(Kong)制(Zhi)工(Gong)件(Jian)带(Dai)入(Ru)的(De)杂(Za)质(Zhi)离(Li)子(Zi)的(De)浓(Nong)度(Du),(?)******涂(Tu)装(Zhuang)质(Zhi)量(Liang)。(?)在(Zai)此(Ci)系(Xi)统(Tong)的(De)运(Yun)行(Xing)中(Zhong)应(Ying)注(Zhu)意(Yi),(?)系(Xi)统(Tong)一(Yi)经(Jing)运(Yun)行(Xing)后(Hou)应(Ying)连(Lian)续(Xu)运(Yun)行(Xing),(?)严(Yan)禁(Jin)间(Jian)断(Duan)运(Yun)行(Xing),(?)以(Yi)防(Fang)超(Chao)滤(Lu)膜(Mo)干(Gan)枯(Ku)。(?)干(Gan)枯(Ku)后(Hou)的(De)树(Shu)脂(Zhi)和(He)颜(Yan)料(Liao)附(Fu)着(Zhuo)在(Zai)超(Chao)滤(Lu)膜(Mo)上(Shang),(?)无(Wu)法(Fa)******清(Qing)洗(Xi),(?)将(Jiang)严(Yan)重(Zhong)影(Ying)响(Xiang)超(Chao)滤(Lu)膜(Mo)的(De)透(Tou)水(Shui)率(Lu)和(He)使(Shi)用(Yong)寿(Shou)命(Ming)。(?)超(Chao)滤(Lu)膜(Mo)的(De)出(Chu)水(Shui)率(Lu)随(Sui)运(Yun)行(Xing)时(Shi)间(Jian)而(?)呈(Cheng)下(Xia)降(Jiang)趋(Qu)势(Shi),(?)连(Lian)续(Xu)工(Gong)作(Zuo)30~(?)40天(Tian)应(Ying)清(Qing)洗(Xi)一(Yi)次(Ci),(?)以(Yi)******超(Chao)滤(Lu)浸(Jin)洗(Xi)和(He)冲(Chong)洗(Xi)所(Suo)需(Xu)的(De)超(Chao)滤(Lu)水(Shui)。(?)((?)7)(?)电(Dian)泳(Yong)涂(Tu)装(Zhuang)法(Fa)适(Shi)用(Yong)于(Yu)大(Da)量(Liang)流(Liu)水(Shui)线(Xian)的(De)生(Sheng)产(Chan)工(Gong)艺(Yi)。(?)电(Dian)泳(Yong)槽(Cao)液(Ye)的(De)更(Geng)新(Xin)周(Zhou)期(Qi)应(Ying)在(Zai)3个(Ge)月(Yue)以(Yi)内(Nei)。(?)以(Yi)一(Yi)个(Ge)年(Nian)产(Chan)30万(Wan)份(Fen)钢(Gang)圈(Quan)的(De)电(Dian)泳(Yong)生(Sheng)产(Chan)线(Xian)为(Wei)例(Li),(?)对(Dui)槽(Cao)液(Ye)的(De)科(Ke)学(Xue)管(Guan)理(Li)极(Ji)为(Wei)重(Zhong)要(Yao),(?)对(Dui)槽(Cao)液(Ye)的(De)各(Ge)种(Zhong)参(Can)数(Shu)定(Ding)期(Qi)进(Jin)行(Xing)检(Jian)测(Ce),(?)并(Bing)根(Gen)据(Ju)检(Jian)测(Ce)结(Jie)果(Guo)对(Dui)槽(Cao)液(Ye)进(Jin)行(Xing)调(Diao)整(Zheng)和(He)更(Geng)换(Huan)。(?)一(Yi)般(Ban)按(An)如(Ru)下(Xia)频(Pin)率(Lu)测(Ce)量(Liang)槽(Cao)液(Ye)的(De)参(Can)数(Shu):(?)电(Dian)泳(Yong)液(Ye)、(?)超(Chao)滤(Lu)液(Ye)及(Ji)超(Chao)滤(Lu)清(Qing)洗(Xi)液(Ye)、(?)阴(Yin)((?)阳(Yang))(?)极(Ji)液(Ye)、(?)循(Xun)环(Huan)洗(Xi)液(Ye)、(?)去(Qu)离(Li)子(Zi)清(Qing)洗(Xi)液(Ye)的(De)PH值(Zhi)、(?)固(Gu)体(Ti)含(Han)量(Liang)和(He)电(Dian)导(Dao)率(Lu)每(Mei)天(Tian)一(Yi)次(Ci);(?)颜(Yan)基(Ji)比(Bi)、(?)有(You)机(Ji)溶(Rong)剂(Ji)含(Han)量(Liang)、(?)试(Shi)验(Yan)室(Shi)小(Xiao)槽(Cao)试(Shi)验(Yan)每(Mei)周(Zhou)2次(Ci)。(?)
((?)8)(?)对(Dui)漆(Qi)膜(Mo)质(Zhi)量(Liang)的(De)管(Guan)理(Li),(?)应(Ying)经(Jing)常(Chang)检(Jian)查(Cha)涂(Tu)膜(Mo)的(De)均(Jun)一(Yi)性(Xing)和(He)膜(Mo)厚(Hou),(?)外(Wai)观(Guan)不(Bu)应(Ying)有(You)针(Zhen)孔(Kong)、(?)流(Liu)挂(Gua)、(?)橘(Ju)皮(Pi)、(?)皱(Zhou)纹(Wen)等(Deng)现(Xian)象(Xiang),(?)定(Ding)期(Qi)检(Jian)查(Cha)涂(Tu)膜(Mo)的(De)附(Fu)着(Zhuo)力(Li)、(?)耐(Nai)腐(Fu)蚀(Shi)性(Xing)能(Neng)等(Deng)物(Wu)理(Li)化(Hua)学(Xue)指(Zhi)标(Biao)。(?)检(Jian)验(Yan)周(Zhou)期(Qi)按(An)生(Sheng)产(Chan)厂(Chang)家(Jia)的(De)检(Jian)验(Yan)标(Biao)准(Zhun),(?)一(Yi)般(Ban)每(Mei)个(Ge)批(Pi)次(Ci)都(Du)需(Xu)检(Jian)测(Ce)。(?)
电(Dian)泳(Yong)涂(Tu)装(Zhuang)及(Ji)水(Shui)性(Xing)漆(Qi)的(De)运(Yun)用(Yong),(?)标(Biao)志(Zhi)着(Zhuo)涂(Tu)装(Zhuang)工(Gong)业(Ye)的(De)一(Yi)项(Xiang)重(Zhong)大(Da)******
四(Si).设(She)备(Bei)组(Zu)成(Cheng)
((?)1)(?) 槽(Cao)体(Ti) (?)((?)2)(?)搅(Jiao)拌(Ban)循(Xun)环(Huan)系(Xi)统(Tong) ((?)3)(?)电(Dian)极(Ji)装(Zhuang)置(Zhi) (?)((?)4)(?)漆(Qi)液(Ye)温(Wen)度(Du)调(Diao)节(Jie)装(Zhuang)置(Zhi) (?)((?)5)(?)涂(Tu)料(Liao)补(Bu)给(Gei)装(Zhuang)置(Zhi)
((?)6)(?)超(Chao)滤(Lu)装(Zhuang)置(Zhi) ((?)7)(?)通(Tong)风(Feng)装(Zhuang)置(Zhi) (?)((?)8)(?)电(Dian)源(Yuan)供(Gong)给(Gei)装(Zhuang)置(Zhi)((?)9)(?)泳(Yong)后(Hou)水(Shui)洗(Xi)装(Zhuang)置(Zhi) (?)((?)10)(?)储(Chu)漆(Qi)装(Zhuang)置(Zhi)
电(Dian)泳(Yong)涂(Tu)装(Zhuang)一(Yi)般(Ban)可(Ke)分(Fen)为(Wei)连(Lian)续(Xu)生(Sheng)产(Chan)的(De)通(Tong)过(Guo)式(Shi)和(He)间(Jian)歇(Xie)式(Shi)的(De)固(Gu)定(Ding)式(Shi)两(Liang)类(Lei)。(?)
对(Dui)于(Yu)连(Lian)续(Xu)生(Sheng)产(Chan)的(De)通(Tong)过(Guo)式(Shi)电(Dian)泳(Yong)涂(Tu)装(Zhuang)设(She)备(Bei),(?)工(Gong)件(Jian)借(Jie)助(Zhu)于(Yu)悬(Xuan)挂(Gua)输(Shu)送(Song)机(Ji)和(He)其(Qi)他(Ta)工(Gong)序(Xu)((?)前(Qian)处(Chu)理(Li)-烘(Hong)干(Gan))(?)组(Zu)成(Cheng)连(Lian)续(Xu)生(Sheng)产(Chan)的(De)涂(Tu)装(Zhuang)生(Sheng)产(Chan)线(Xian),(?)此(Ci)类(Lei)设(She)备(Bei)适(Shi)用(Yong)于(Yu)大(Da)批(Pi)量(Liang)生(Sheng)产(Chan)。(?)
对(Dui)于(Yu)间(Jian)歇(Xie)生(Sheng)产(Chan)固(Gu)定(Ding)式(Shi)电(Dian)泳(Yong)涂(Tu)装(Zhuang)设(She)备(Bei),(?)工(Gong)件(Jian)借(Jie)助(Zhu)于(Yu)单(Dan)轨(Gui)电(Dian)葫(Hu)芦(Lu)或(Huo)其(Qi)他(Ta)形(Xing)式(Shi)的(De)输(Shu)送(Song)机(Ji),(?)和(He)其(Qi)他(Ta)工(Gong)序(Xu)((?)前(Qian)处(Chu)理(Li)-烘(Hong)干(Gan))(?)组(Zu)成(Cheng)间(Jian)歇(Xie)式(Shi)涂(Tu)装(Zhuang)生(Sheng)产(Chan)线(Xian),(?)适(Shi)用(Yong)于(Yu)中(Zhong)等(Deng)批(Pi)量(Liang)的(De)涂(Tu)装(Zhuang)生(Sheng)产(Chan)。(?)
在(Zai)涂(Tu)装(Zhuang)工(Gong)程(Cheng)电(Dian)泳(Yong)电(Dian)压(Ya)、(?)时(Shi)间(Jian)、(?)温(Wen)度(Du)、(?)阴(Yin)阳(Yang)极(Ji)面(Mian)积(Ji)比(Bi)、(?)漆(Qi)液(Ye)固(Gu)体(Ti)体(Ti)份(Fen)及(Ji)漆(Qi)液(Ye)的(De)PH值(Zhi)等(Deng)影(Ying)响(Xiang)涂(Tu)层(Ceng)的(De)质(Zhi)量(Liang),(?)在(Zai)实(Shi)际(Ji)中(Zhong),(?)根(Gen)据(Ju)客(Ke)户(Hu)的(De)工(Gong)艺(Yi)参(Can)数(Shu)来(Lai)确(Que)定(Ding)上(Shang)述(Shu)参(Can)数(Shu)。(?)
阴(Yin)极(Ji)电(Dian)泳(Yong)涂(Tu)装(Zhuang)金(Jin)属(Shu)处(Chu)在(Zai)阴(Yin)极(Ji)不(Bu)易(Yi)氧(Yang)化(Hua),(?)相(Xiang)对(Dui)阳(Yang)极(Ji)电(Dian)泳(Yong)来(Lai)说(Shuo)涂(Tu)层(Ceng)更(Geng)具(Ju)有(You)普(Pu)遍(Bian)性(Xing),(?)采(Cai)用(Yong)超(Chao)滤(Lu)系(Xi)统(Tong)槽(Cao)液(Ye)不(Bu)会(Hui)受(Shou)到(Dao)污(Wu)染(Ran),(?)槽(Cao)液(Ye)维(Wei)护(Hu)简(Jian)单(Dan),(?)涂(Tu)层(Ceng)更(Geng)具(Ju)有(You)防(Fang)腐(Fu)蚀(Shi)效(Xiao)果(Guo)。(?)
涂(Tu)装(Zhuang)经(Jing)过(Guo)在(Zai)固(Gu)化(Hua)炉(Lu)内(Nei)进(Jin)行(Xing)固(Gu)化(Hua)。(?)固(Gu)化(Hua)炉(Lu)可(Ke)以(Yi)分(Fen)为(Wei)连(Lian)续(Xu)式(Shi)和(He)间(Jian)歇(Xie)式(Shi)两(Liang)种(Zhong)。(?)
固(Gu)化(Hua)过(Guo)程(Cheng)的(De)温(Wen)度(Du)曲(Qu)线(Xian)对(Dui)质(Zhi)量(Liang)有(You)很(Hen)大(Da)的(De)影(Ying)响(Xiang)。(?)一(Yi)般(Ban)需(Xu)要(Yao)用(Yong)北(Bei)京(Jing)赛(Sai)维(Wei)美(Mei)高(Gao)科(Ke)技(Ji)有(You)限(Xian)公(Gong)司(Si)生(Sheng)产(Chan)的(De)炉(Lu)温(Wen)跟(Gen)踪(Zong)仪(Yi)((?)型(Xing)号(Hao)为(Wei)SMT-4 或(Huo)SMT-7-32-300-K)(?)对(Dui)烘(Hong)烤(Kao)过(Guo)程(Cheng)的(De)温(Wen)度(Du)曲(Qu)线(Xian)进(Jin)行(Xing)定(Ding)时(Shi)检(Jian)测(Ce)。(?)确(Que)保(Bao)温(Wen)度(Du)曲(Qu)线(Xian)满(Man)足(Zu)工(Gong)艺(Yi)要(Yao)求(Qiu)。(?)
整(Zheng)车(Che)阴(Yin)极(Ji)电(Dian)泳(Yong)涂(Tu)装(Zhuang)生(Sheng)产(Chan)线(Xian)在(Zai)我(Wo)国(Guo)客(Ke)车(Che)涂(Tu)装(Zhuang)行(Xing)业(Ye)引(Yin)起(Qi)了(Liao)不(Bu)小(Xiao)的(De)波(Bo)动(Dong),(?)中(Zhong)大(Da)涂(Tu)装(Zhuang)((?)江(Jiang)苏(Su)中(Zhong)大(Da)工(Gong)业(Ye)涂(Tu)装(Zhuang)环(Huan)保(Bao)有(You)限(Xian)公(Gong)司(Si))(?)是(Shi)国(Guo)内(Nei)******一(Yi)家(Jia)涂(Tu)装(Zhuang)上(Shang)市(Shi)公(Gong)司(Si),(?)也(Ye)是(Shi)******家(Jia)建(Jian)成(Cheng)了(Liao)国(Guo)内(Nei)大(Da)型(Xing)客(Ke)车(Che)整(Zheng)车(Che)阴(Yin)极(Ji)电(Dian)泳(Yong)涂(Tu)装(Zhuang)生(Sheng)产(Chan)线(Xian)的(De)中(Zhong)外(Wai)合(He)资(Zi)企(Qi)业(Ye)。(?)
五(Wu).制(Zhi)作(Zuo)工(Gong)艺(Yi)
电(Dian)泳(Yong)涂(Tu)装(Zhuang)是(Shi)把(Ba)工(Gong)件(Jian)和(He)对(Dui)应(Ying)的(De)电(Dian)极(Ji)放(Fang)入(Ru)水(Shui)溶(Rong)性(Xing)涂(Tu)料(Liao)中(Zhong),(?)接(Jie)上(Shang)电(Dian)源(Yuan)后(Hou),(?)依(Yi)靠(Kao)电(Dian)场(Chang)所(Suo)产(Chan)生(Sheng)
阴(Yin)极(Ji)电(Dian)泳(Yong)底(Di)漆(Qi)涂(Tu)装(Zhuang)线(Xian)
阴(Yin)极(Ji)电(Dian)泳(Yong)底(Di)漆(Qi)涂(Tu)装(Zhuang)线(Xian)
的(De)物(Wu)理(Li)化(Hua)学(Xue)作(Zuo)用(Yong),(?)使(Shi)涂(Tu)料(Liao)中(Zhong)的(De)树(Shu)脂(Zhi)、(?)颜(Yan)填(Tian)料(Liao)在(Zai)以(Yi)被(Bei)涂(Tu)物(Wu)为(Wei)电(Dian)极(Ji)的(De)表(Biao)面(Mian)上(Shang)均(Jun)匀(Yun)析(Xi)出(Chu)沉(Chen)积(Ji)形(Xing)成(Cheng)不(Bu)溶(Rong)于(Yu)水(Shui)的(De)漆(Qi)膜(Mo)的(De)一(Yi)种(Zhong)涂(Tu)装(Zhuang)方(Fang)法(Fa)。(?)电(Dian)泳(Yong)涂(Tu)装(Zhuang)是(Shi)一(Yi)个(Ge)极(Ji)为(Wei)复(Fu)杂(Za)的(De)电(Dian)化(Hua)学(Xue)反(Fan)应(Ying)过(Guo)程(Cheng),(?)其(Qi)中(Zhong)至(Zhi)少(Shao)包(Bao)括(Kuo)电(Dian)泳(Yong)、(?)电(Dian)沉(Chen)积(Ji)、(?)电(Dian)渗(Shen)、(?)电(Dian)解(Jie)四(Si)个(Ge)过(Guo)程(Cheng)。(?)电(Dian)泳(Yong)涂(Tu)装(Zhuang)按(An)沉(Chen)积(Ji)性(Xing)能(Neng)可(Ke)分(Fen)为(Wei)阳(Yang)极(Ji)电(Dian)泳(Yong)((?)工(Gong)件(Jian)是(Shi)阳(Yang)极(Ji),(?)涂(Tu)料(Liao)是(Shi)阴(Yin)离(Li)子(Zi)型(Xing))(?)和(He)阴(Yin)极(Ji)电(Dian)泳(Yong)((?)工(Gong)件(Jian)是(Shi)阴(Yin)极(Ji),(?)涂(Tu)料(Liao)是(Shi)阳(Yang)离(Li)子(Zi)型(Xing))(?);(?)按(An)电(Dian)源(Yuan)可(Ke)分(Fen)为(Wei)直(Zhi)流(Liu)电(Dian)泳(Yong)和(He)交(Jiao)流(Liu)电(Dian)泳(Yong);(?)按(An)工(Gong)艺(Yi)方(Fang)法(Fa)又(You)有(You)定(Ding)电(Dian)压(Ya)和(He)定(Ding)电(Dian)流(Liu)法(Fa)。(?)
电(Dian)泳(Yong)是(Shi)电(Dian)泳(Yong)涂(Tu)料(Liao)在(Zai)阴(Yin)阳(Yang)两(Liang)极(Ji),(?)施(Shi)加(Jia)于(Yu)电(Dian)压(Ya)作(Zuo)用(Yong)下(Xia),(?)带(Dai)电(Dian)荷(He)之(Zhi)涂(Tu)料(Liao)离(Li)子(Zi)移(Yi)动(Dong)到(Dao)阴(Yin)极(Ji),(?)并(Bing)与(Yu)阴(Yin)极(Ji)表(Biao)面(Mian)所(Suo)产(Chan)生(Sheng)之(Zhi)碱(Jian)性(Xing)作(Zuo)用(Yong)形(Xing)成(Cheng)不(Bu)溶(Rong)解(Jie)物(Wu),(?)沉(Chen)积(Ji)于(Yu)工(Gong)件(Jian)表(Biao)面(Mian)。(?)
电(Dian)著(Zhu)又(You)称(Cheng)电(Dian)泳(Yong),(?)常(Chang)见(Jian)的(De)电(Dian)泳(Yong)涂(Tu)装(Zhuang)是(Shi)电(Dian)泳(Yong)黑(Hei)色(Se),(?)随(Sui)着(Zhuo)电(Dian)泳(Yong)涂(Tu)装(Zhuang)工(Gong)艺(Yi)的(De)发(Fa)展(Zhan),(?)电(Dian)泳(Yong)彩(Cai)色(Se)随(Sui)之(Zhi)诞(Dan)生(Sheng),(?)
下(Xia)面(Mian)为(Wei)大(Da)家(Jia)讲(Jiang)解(Jie)一(Yi)下(Xia)电(Dian)泳(Yong)工(Gong)艺(Yi)流(Liu)程(Cheng)及(Ji)检(Jian)测(Ce)。(?)
电(Dian)泳(Yong)工(Gong)艺(Yi)流(Liu)程(Cheng)及(Ji)质(Zhi)量(Liang)检(Jian)测(Ce)
我(Wo)们(Men)可(Ke)知(Zhi)电(Dian)泳(Yong)漆(Qi)涂(Tu)装(Zhuang)的(De)工(Gong)序(Xu)一(Yi)般(Ban)比(Bi)电(Dian)镀(Du)少(Shao),(?)原(Yuan)因(Yin)是(Shi)电(Dian)泳(Yong)漆(Qi)本(Ben)身(Shen)可(Ke)作(Zuo)上(Shang)色(Se)之(Zhi)用(Yong)又(You)可(Ke)当(Dang)作(Zuo)保(Bao)护(Hu)膜(Mo)可(Ke)以(Yi)省(Sheng)下(Xia)一(Yi)重(Zhong)工(Gong)序(Xu).所(Suo)以(Yi)电(Dian)泳(Yong)漆(Qi)涂(Tu)装(Zhuang)需(Xu)时(Shi)较(Jiao)少(Shao)及(Ji)比(Bi)较(Jiao)经(Jing)济(Ji).在(Zai)仿(Fang)金(Jin)制(Zhi)作(Zuo)上(Shang),(?)电(Dian)镀(Du)技(Ji)术(Shu)需(Xu)要(Yao)镀(Du)上(Shang)真(Zhen)金(Jin),(?)但(Dan)使(Shi)用(Yong)电(Dian)泳(Yong)漆(Qi)涂(Tu)装(Zhuang)技(Ji)术(Shu)则(Ze)可(Ke)镀(Du)上(Shang)仿(Fang)金(Jin)色(Se)省(Sheng)下(Xia)成(Cheng)本(Ben).
1、(?)钢(Gang)模(Mo)板(Ban)电(Dian)泳(Yong)涂(Tu)装(Zhuang)工(Gong)艺(Yi)流(Liu)程(Cheng)
除(Chu)油(You)除(Chu)锈(Xiu)、(?)水(Shui)冲(Chong)水(Shui)洗(Xi)、(?)干(Gan)燥(Zao)、(?)电(Dian)泳(Yong)上(Shang)膝(Xi)、(?)水(Shui)冲(Chong)、(?)烘(Hong)干(Gan)、(?)喷(Pen)商(Shang)标(Biao)、(?)包(Bao)装(Zhuang)出(Chu)厂(Chang)。(?)
2、(?)对(Dui)工(Gong)艺(Yi)流(Liu)程(Cheng)的(De)说(Shuo)明(Ming)
除(Chu)油(You)除(Chu)锈(Xiu):(?)采(Cai)用(Yong)二(?)合(He)一(Yi)法(Fa),(?)即(Ji)除(Chu)油(You)、(?)除(Chu)锈(Xiu)一(Yi)步(Bu)法(Fa),(?)溶(Rong)液(Ye)本(Ben)厂(Chang)自(Zi)配(Pei)。(?)
水(Shui)冲(Chong)水(Shui)洗(Xi):(?)其(Qi)目(Mu)的(De)在(Zai)于(Yu)去(Qu)掉(Diao)模(Mo)板(Ban)表(Biao)面(Mian)的(De)酸(Suan)碱(Jian)残(Can)留(Liu)物(Wu)。(?)水(Shui)洗(Xi)时(Shi),(?)******采(Cai)用(Yong)常(Chang)流(Liu)水(Shui)。(?)
电(Dian)泳(Yong)上(Shang)漆(Qi):(?)这(Zhe)是(Shi)工(Gong)艺(Yi)的(De)目(Mu)的(De)和(He)核(He)心(Xin)。(?)电(Dian)泳(Yong)槽(Cao)内(Nei)的(De)电(Dian)流(Liu)、(?)电(Dian)压(Ya)、(?)固(Gu)成(Cheng)份(Fen)含(Han)量(Liang)、(?)PH值(Zhi)、(?)电(Dian)泳(Yong)温(Wen)度(Du)速(Su)度(Du)以(Yi)及(Ji)电(Dian)泳(Yong)槽(Cao)附(Fu)加(Jia)设(She)备(Bei)的(De)正(Zheng)确(Que)使(Shi)用(Yong),(?)是(Shi)决(Jue)定(Ding)电(Dian)泳(Yong)上(Shang)漆(Qi)成(Cheng)败(Bai)的(De)关(Guan)键(Jian)。(?)
烘(Hong)干(Gan):(?)钢(Gang)模(Mo)板(Ban)电(Dian)泳(Yong)上(Shang)漆(Qi)后(Hou)必(Bi)须(Xu)烘(Hong)干(Gan)。(?)烘(Hong)干(Gan)箱(Xiang)工(Gong)作(Zuo)温(Wen)度(Du)为(Wei)160-180℃(?),(?)烘(Hong)烤(Kao)时(Shi)间(Jian)为(Wei)30min。(?)
电(Dian)泳(Yong)涂(Tu)装(Zhuang)所(Suo)需(Xu)的(De)主(Zhu)要(Yao)设(She)备(Bei)。(?)各(Ge)种(Zhong)水(Shui)槽(Cao),(?)电(Dian)泳(Yong)槽(Cao),(?)通(Tong)道(Dao)式(Shi)烘(Hong)干(Gan)箱(Xiang),(?)机(Ji)械(Xie)传(Chuan)动(Dong)系(Xi)统(Tong),(?)电(Dian)气(Qi) 控(Kong)制(Zhi)系(Xi)统(Tong),(?)漆(Qi)液(Ye)和(He)漆(Qi)膜(Mo)设(She)备(Bei),(?)如(Ru)电(Dian)导(Dao)仪(Yi),(?)附(Fu)着(Zhuo)力(Li)测(Ce)定(Ding)仪(Yi)等(Deng)。(?)
3、(?)质(Zhi)量(Liang)检(Jian)测(Ce)与(Yu)控(Kong)制(Zhi)
((?)1)(?)漆(Qi)液(Ye)浓(Nong)度(Du)
电(Dian)泳(Yong)漆(Qi)与(Yu)蒸(Zheng)馏(Liu)水(Shui)混(Hun)合(He)后(Hou),(?)其(Qi)浓(Nong)度(Du)应(Ying)达(Da)到(Dao)10%-15%,(?)浓(Nong)度(Du)过(Guo)高(Gao),(?)漆(Qi)膜(Mo)流(Liu)平(Ping)性(Xing)欠(Qian)佳(Jia),(?)易(Yi)出(Chu)现(Xian)桔(Jie)皮(Pi)等(Deng)缺(Que)陷(Xian)。(?)浓(Nong)度(Du)过(Guo)低(Di),(?)漆(Qi)膜(Mo)变(Bian)薄(Bao),(?)易(Yi)出(Chu)现(Xian)现(Xian)象(Xiang)。(?)
((?)2)(?)电(Dian)压(Ya)
电(Dian)泳(Yong)电(Dian)压(Ya)一(Yi)般(Ban)应(Ying)控(Kong)制(Zhi)在(Zai)60V左(Zuo)右(You)。(?)电(Dian)压(Ya)升(Sheng)高(Gao),(?)沉(Chen)积(Ji)量(Liang)增(Zeng)加(Jia),(?)漆(Qi)膜(Mo)变(Bian)的(De)粗(Cu)糙(Cao),(?)形(Xing)成(Cheng)桔(Jie)皮(Pi),(?)电(Dian)压(Ya)过(Guo)低(Di),(?)漆(Qi)膜(Mo)甚(Shen)簿(Bu),(?)甚(Shen)至(Zhi)泳(Yong)不(Bu)上(Shang)漆(Qi)。(?)
((?)3)(?)PH值(Zhi)
一(Yi)般(Ban)漆(Qi)液(Ye)PH值(Zhi)在(Zai)8-9时(Shi)均(Jun)能(Neng)得(De)到(Dao)满(Man)意(Yi)的(De)漆(Qi)膜(Mo)。(?)PH值(Zhi)过(Guo)低(Di),(?)电(Dian)泳(Yong)槽(Cao)内(Nei)脉(Mai)冲(Chong)电(Dian)流(Liu)密(Mi)度(Du)降(Jiang)低(Di),(?)从(Cong)而(?)造(Zao)成(Cheng)模(Mo)板(Ban)局(Ju)部(Bu)无(Wu)漆(Qi),(?)形(Xing)成(Cheng)花(Hua)脸(Lian),(?)PH值(Zhi)过(Guo)高(Gao),(?)会(Hui)造(Zao)成(Cheng)湿(Shi)膜(Mo)再(Zai)溶(Rong)解(Jie),(?)使(Shi)漆(Qi)膜(Mo)变(Bian)簿(Bu),(?)影(Ying)响(Xiang)涂(Tu)装(Zhuang)质(Zhi)量(Liang)。(?)调(Diao)整(Zheng)槽(Cao)液(Ye)的(De)PH值(Zhi)有(You)多(Duo)种(Zhong)方(Fang)法(Fa),(?)我(Wo)们(Men)选(Xuan)择(Ze)了(Liao)阴(Yin)极(Ji)罩(Zhao)法(Fa)。(?)阴(Yin)极(Ji)罩(Zhao)是(Shi)将(Jiang)阴(Yin)极(Ji)板(Ban)装(Zhuang)在(Zai)一(Yi)个(Ge)帆(Fan)布(Bu)袋(Dai)内(Nei),(?)袋(Dai)用(Yong)钢(Gang)丝(Si)架(Jia)支(Zhi)撑(Cheng)着(Zhuo),(?)袋(Dai)内(Nei)装(Zhuang)满(Man)蒸(Zheng)馏(Liu)水(Shui)。(?)电(Dian)泳(Yong)时(Shi),(?)胺(An)的(De)正(Zheng)离(Li)子(Zi)和(He)漆(Qi)液(Ye)中(Zhong)带(Dai)正(Zheng)电(Dian)荷(He)的(De)杂(Za)质(Zhi)离(Li)子(Zi)(如(Ru)水(Shui)中(Zhong)的(De)Ca2、(?)Mg2)均(Jun)可(Ke)通(Tong)过(Guo)帆(Fan)布(Bu)进(Jin)入(Ru)阴(Yin)极(Ji)罩(Zhao)内(Nei),(?)并(Bing)在(Zai)阴(Yin)极(Ji)放(Fang)电(Dian)。(?)更(Geng)换(Huan)罩(Zhao)内(Nei)蒸(Zheng)馏(Liu)水(Shui),(?)就(Jiu)可(Ke)将(Jiang)杂(Za)质(Zhi)除(Chu)去(Qu)。(?)
((?)4)(?)电(Dian)泳(Yong)时(Shi)间(Jian)
电(Dian)泳(Yong)漆(Qi)膜(Mo)的(De)厚(Hou)度(Du)一(Yi)般(Ban)是(Shi)随(Sui)着(Zhuo)电(Dian)泳(Yong)时(Shi)间(Jian)的(De)增(Zeng)加(Jia)而(?)增(Zeng)加(Jia)的(De),(?)但(Dan)是(Shi),(?)当(Dang)电(Dian)泳(Yong)时(Shi)间(Jian)到(Dao)达(Da)一(Yi)定(Ding)点(Dian)后(Hou),(?)漆(Qi)膜(Mo)厚(Hou)度(Du)就(Jiu)不(Bu)再(Zai)增(Zeng)加(Jia),(?)其(Qi)原(Yuan)因(Yin)就(Jiu)是(Shi)漆(Qi)膜(Mo)在(Zai)达(Da)到(Dao)一(Yi)定(Ding)厚(Hou)度(Du)时(Shi)产(Chan)生(Sheng)绝(Jue)缘(Yuan)。(?)故(Gu)采(Cai)用(Yong)处(Chu)长(Chang)电(Dian)泳(Yong)时(Shi)间(Jian)使(Shi)漆(Qi)膜(Mo)增(Zeng)厚(Hou)是(Shi)行(Xing)不(Bu)通(Tong)的(De),(?)而(?)且(Qie)由(You)于(Yu)耗(Hao)电(Dian)增(Zeng)加(Jia),(?)在(Zai)经(Jing)济(Ji)上(Shang)是(Shi)不(Bu)合(He)算(Suan)的(De)。(?)电(Dian)泳(Yong)时(Shi)间(Jian)一(Yi)般(Ban)有(You)3min即(Ji)可(Ke)。(?)
((?)5)(?)电(Dian)导(Dao)率(Lu) (?)电(Dian)泳(Yong)漆(Qi)工(Gong)作(Zuo)液(Ye)的(De)导(Dao)电(Dian)能(Neng)力(Li),(?)通(Tong)常(Chang)用(Yong)电(Dian)导(Dao)率(Lu)表(Biao)示(Shi)。(?)漆(Qi)液(Ye)的(De)电(Dian)导(Dao)过(Guo)低(Di),(?)漆(Qi)膜(Mo)不(Bu)易(Yi)形(Xing)成(Cheng);(?)电(Dian)导(Dao)过(Guo)高(Gao),(?)造(Zao)成(Cheng)漆(Qi)膜(Mo)外(Wai)观(Guan)粗(Cu)糙(Cao)。(?)对(Dui)同(Tong)一(Yi)种(Zhong)涂(Tu)料(Liao)而(?)言(Yan),(?)对(Dui)漆(Qi)液(Ye)电(Dian)导(Dao)影(Ying)响(Xiang)******的(De)因(Yin)素(Su)是(Shi)漆(Qi)液(Ye)中(Zhong)杂(Za)质(Zhi)离(Li)子(Zi)的(De)存(Cun)在(Zai)。(?)因(Yin)此(Ci),(?)一(Yi)定(Ding)要(Yao)通(Tong)过(Guo)控(Kong)制(Zhi)杂(Za)质(Zhi)含(Han)量(Liang),(?)保(Bao)持(Chi)电(Dian)导(Dao)率(Lu)的(De)正(Zheng)常(Chang)值(Zhi)。(?)
六(Liu).表(Biao)面(Mian)处(Chu)理(Li)
涂(Tu)装(Zhuang)前(Qian)工(Gong)件(Jian)的(De)表(Biao)面(Mian)处(Chu)理(Li),(?)是(Shi)电(Dian)泳(Yong)涂(Tu)装(Zhuang)的(De)一(Yi)个(Ge)重(Zhong)要(Yao)环(Huan)节(Jie),(?)主(Zhu)要(Yao)涉(She)及(Ji)除(Chu)油(You)、(?)
除(Chu)锈(Xiu)、(?)表(Biao)调(Diao)、(?)磷(Lin)化(Hua)等(Deng)工(Gong)序(Xu)。(?)其(Qi)处(Chu)理(Li)好(Hao)坏(Huai),(?)不(Bu)仅(Jin)影(Ying)响(Xiang)膜(Mo)外(Wai)观(Guan)、(?)降(Jiang)低(Di)防(Fang)腐(Fu)性(Xing)能(Neng),(?)并(Bing)能(Neng)破(Po)坏(Huai)漆(Qi)液(Ye)的(De)稳(Wen)定(Ding)性(Xing)。(?)因(Yin)此(Ci),(?)对(Dui)于(Yu)涂(Tu)装(Zhuang)前(Qian)工(Gong)件(Jian)表(Biao)面(Mian),(?)要(Yao)求(Qiu)无(Wu)油(You)污(Wu)、(?)锈(Xiu)痕(Hen),(?)无(Wu)前(Qian)处(Chu)理(Li)药(Yao)品(Pin)及(Ji)磷(Lin)化(Hua)沉(Chen)化(Hua)沉(Chen)渣(Zha)等(Deng),(?)磷(Lin)化(Hua)膜(Mo)结(Jie)晶(Jing)致(Zhi)密(Mi)均(Jun)匀(Yun)。(?)
针(Zhen)对(Dui)前(Qian)处(Chu)理(Li)各(Ge)工(Gong)序(Xu),(?)将(Jiang)不(Bu)不(Bu)一(Yi)讨(Tao)论(Lun),(?)仅(Jin)提(Ti)出(Chu)几(Ji)点(Dian)注(Zhu)意(Yi)内(Nei)容(Rong):(?)
1)(?)如(Ru)除(Chu)油(You)锈(Xiu)不(Bu)干(Gan)净(Jing),(?)不(Bu)仅(Jin)影(Ying)响(Xiang)磷(Lin)化(Hua)膜(Mo)的(De)形(Xing)成(Cheng),(?)且(Qie)影(Ying)响(Xiang)涂(Tu)层(Ceng)的(De)结(Jie)合(He)力(Li)、(?)装(Zhuang)饰(Shi)性(Xing)能(Neng)和(He)耐(Nai)蚀(Shi)性(Xing)。(?)漆(Qi)膜(Mo)易(Yi)出(Chu)现(Xian)缩(Suo)孔(Kong)、(?)针(Zhen)孔(Kong)、(?)“花(Hua)脸(Lian)”等(Deng)弊(Bi)病(Bing)。(?)
2)(?)磷(Lin)化(Hua):(?)目(Mu)的(De)提(Ti)高(Gao)电(Dian)泳(Yong)膜(Mo)的(De)附(Fu)着(Zhuo)力(Li)和(He)防(Fang)腐(Fu)能(Neng)力(Li)。(?)其(Qi)作(Zuo)用(Yong)如(Ru)下(Xia):(?)
((?)1)(?) 由(You)于(Yu)物(Wu)理(Li)和(He)化(Hua)学(Xue)作(Zuo)用(Yong),(?)增(Zeng)强(Qiang)了(Liao)有(You)机(Ji)涂(Tu)膜(Mo)对(Dui)基(Ji)材(Cai)的(De)附(Fu)着(Zhuo)力(Li)。(?)
((?)2)(?) 磷(Lin)化(Hua)膜(Mo)使(Shi)金(Jin)属(Shu)表(Biao)面(Mian)由(You)优(You)良(Liang)导(Dao)体(Ti)变(Bian)为(Wei)不(Bu)良(Liang)导(Dao)体(Ti),(?)从(Cong)而(?)抑(Yi)制(Zhi)金(Jin)属(Shu)表(Biao)面(Mian)微(Wei)电(Dian)池(Chi)的(De)形(Xing)成(Cheng),(?)有(You)效(Xiao)地(Di)阻(Zu)碍(Ai)了(Liao)涂(Tu)层(Ceng)腐(Fu)蚀(Shi),(?)成(Cheng)倍(Bei)地(Di)提(Ti)高(Gao)涂(Tu)层(Ceng)的(De)耐(Nai)蚀(Shi)性(Xing)和(He)耐(Nai)水(Shui)性(Xing)。(?)
另(Ling)外(Wai),(?)只(Zhi)有(You)在(Zai)******脱(Tuo)底(Di)脱(Tuo)脂(Zhi)的(De)基(Ji)础(Chu)上(Shang),(?)在(Zai)清(Qing)洁(Jie)、(?)均(Jun)匀(Yun)、(?)无(Wu)油(You)脂(Zhi)的(De)表(Biao)面(Mian)上(Shang)才(Cai)能(Neng)形(Xing)成(Cheng)令(Ling)人(Ren)满(Man)意(Yi)的(De)磷(Lin)化(Hua)膜(Mo)。(?)从(Cong)这(Zhe)一(Yi)方(Fang)面(Mian)讲(Jiang),(?)磷(Lin)化(Hua)膜(Mo)本(Ben)身(Shen)就(Jiu)是(Shi)对(Dui)前(Qian)处(Chu)理(Li)工(Gong)艺(Yi)效(Xiao)果(Guo)的(De)***直(Zhi)观(Guan)*********的(De)一(Yi)个(Ge)自(Zi)检(Jian)。(?)
3)(?)水(Shui)洗(Xi):(?)前(Qian)处(Chu)理(Li)各(Ge)阶(Jie)段(Duan)水(Shui)洗(Xi)好(Hao)坏(Huai)将(Jiang)对(Dui)整(Zheng)个(Ge)前(Qian)处(Chu)理(Li)及(Ji)漆(Qi)膜(Mo)质(Zhi)量(Liang)产(Chan)生(Sheng)很(Hen)大(Da)影(Ying)响(Xiang)。(?)涂(Tu)装(Zhuang)前(Qian)***后(Hou)一(Yi)道(Dao)去(Qu)离(Li)子(Zi)水(Shui)清(Qing)洗(Xi),(?)要(Yao)确(Que)保(Bao)被(Bei)涂(Tu)物(Wu)的(De)滴(Di)水(Shui)电(Dian)导(Dao)率(Lu)不(Bu)大(Da)于(Yu)30μs/cm。(?)清(Qing)洗(Xi)不(Bu)干(Gan)净(Jing),(?)如(Ru)工(Gong)件(Jian):(?)
((?)1)(?) 残(Can)留(Liu)余(Yu)酸(Suan)、(?)磷(Lin)化(Hua)药(Yao)液(Ye),(?)漆(Qi)液(Ye)中(Zhong)树(Shu)脂(Zhi)发(Fa)生(Sheng)絮(Xu)凝(Ning),(?)稳(Wen)定(Ding)性(Xing)变(Bian)坏(Huai);(?)
((?)2)(?) 残(Can)留(Liu)异(Yi)物(Wu)((?)油(You)污(Wu)、(?)尘(Chen)埃(Ai))(?),(?)漆(Qi)膜(Mo)出(Chu)现(Xian)缩(Suo)孔(Kong)、(?)颗(Ke)粒(Li)等(Deng)弊(Bi)病(Bing);(?)
((?)3)(?) 残(Can)留(Liu)电(Dian)解(Jie)质(Zhi)、(?)盐(Yan)类(Lei)、(?)导(Dao)致(Zhi)电(Dian)解(Jie)反(Fan)应(Ying)加(Jia)剧(Ju),(?)产(Chan)生(Sheng)针(Zhen)孔(Kong)等(Deng)弊(Bi)病(Bing)。(?)
七(Qi).参(Can)数(Shu)管(Guan)理(Li)
电(Dian)泳(Yong)涂(Tu)装(Zhuang)工(Gong)艺(Yi)条(Tiao)件(Jian)包(Bao)括(Kuo)以(Yi)下(Xia)四(Si)个(Ge)方(Fang)面(Mian)13个(Ge)条(Tiao)件(Jian)((?)参(Can)数(Shu))(?):(?)
1)(?)槽(Cao)液(Ye)的(De)组(Zu)成(Cheng)方(Fang)面(Mian):(?)固(Gu)体(Ti)份(Fen)、(?)灰(Hui)份(Fen)、(?)MEQ和(He)有(You)机(Ji)溶(Rong)剂(Ji)含(Han)量(Liang);(?)
2)(?)电(Dian)泳(Yong)条(Tiao)件(Jian)方(Fang)面(Mian):(?)槽(Cao)液(Ye)温(Wen)度(Du)、(?)泳(Yong)涂(Tu)电(Dian)压(Ya)、(?)泳(Yong)涂(Tu)时(Shi)间(Jian);(?)
3)(?)槽(Cao)液(Ye)特(Te)性(Xing)方(Fang)面(Mian):(?)PH值(Zhi)、(?)电(Dian)导(Dao)率(Lu);(?)
4)(?)电(Dian)泳(Yong)特(Te)性(Xing)方(Fang)面(Mian):(?)固(Gu)化(Hua)效(Xiao)率(Lu)、(?)******电(Dian)流(Liu)值(Zhi)、(?)膜(Mo)厚(Hou)和(He)泳(Yong)透(Tou)力(Li)。(?)
其(Qi)中(Zhong),(?)泳(Yong)涂(Tu)电(Dian)压(Ya)和(He)时(Shi)间(Jian)、(?)槽(Cao)液(Ye)固(Gu)体(Ti)份(Fen)、(?)温(Wen)度(Du)、(?)PH值(Zhi)和(He)电(Dian)导(Dao)率(Lu)是(Shi)现(Xian)场(Chang)控(Kong)制(Zhi)和(He)管(Guan)理(Li)的(De)主(Zhu)要(Yao)项(Xiang)目(Mu)