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电机维修之浸漆工艺

来源:子昂电机维修 日期:2018-05-23 15:39:12

电机维修之浸漆工艺

1.适用范围(wei):本规(gui)范适用于各类电压等级低(di)压电机(ji)及(ji)高压电机(ji)、电器的定、转(zhuan)子有绕组铁心线(xian)圈及(ji)各类绕组,F级浸漆绝缘处理。

2.材(cai)料:浸渍漆(qi)319-5F级无溶(rong)剂(ji)浸渍漆(qi);稀(xi)释剂(ji):319-5专用稀(xi)释剂(ji)。

3.设备(bei)工具:烘箱。附有热风循环(huan)系统、绝缘电阻(zu)测量系统;漆缸(gang)和(he)漆缸(gang)盖;#4粘度杯(bei)、秒表(biao)、温度计(0~100℃);500V兆欧表(biao)、高压电机用(yong)2500V兆欧表(biao);漆刷、铲刀等(deng)。

4.工艺准备:浸渍(zi)漆(qi)经检(jian)验合(he)格后方可投入生产;漆(qi)缸内每周(zhou)应(ying)加入适当数量的(de)(de)新漆(qi);浸漆(qi)前应(ying)对浸渍(zi)漆(qi)的(de)(de)粘(zhan)度(du)调节(25±1℃时)为20~30秒;检(jian)查被浸工件是否清(qing)洁、绕组完好、槽楔脱(tuo)落、绑扎(zha)带松开等(deng),凡(fan)不符合(he)要求者应(ying)予退(tui)修。

5.浸(jin)漆(qi)要(yao)(yao)求:除工(gong)作规定(ding)有特殊浸(jin)漆(qi)要(yao)(yao)求外,其(qi)余(yu)均按本(ben)规范要(yao)(yao)求进行(xing);一(yi)(yi)般(ban)电(dian)机、电(dian)器绕(rao)(rao)组(zu)浸(jin)漆(qi)一(yi)(yi)次(ci),有湿热带要(yao)(yao)求(TH)、船用电(dian)机或(huo)顾客要(yao)(yao)求,浸(jin)二(er)(er)(er)次(ci)漆(qi);一(yi)(yi)般(ban)电(dian)机浸(jin)漆(qi)20分(fen)钟(zhong),中心高(gao)在(zai)(zai)315及(ji)以上(shang)的电(dian)机浸(jin)漆(qi)30分(fen)钟(zhong)。在(zai)(zai)上(shang)述时(shi)(shi)(shi)间内被(bei)浸(jin)工(gong)件(jian)仍(reng)在(zai)(zai)大量气泡逸出(chu)(chu),应(ying)(ying)延(yan)(yan)长浸(jin)漆(qi)时(shi)(shi)(shi)间,直到无(wu)气泡逸出(chu)(chu);需浸(jin)二(er)(er)(er)次(ci)漆(qi)的电(dian)机绕(rao)(rao)组(zu),在(zai)(zai)第(di)二(er)(er)(er)次(ci)烘(hong)(hong)(hong)焙(bei)时(shi)(shi)(shi)间应(ying)(ying)延(yan)(yan)长2小(xiao)时(shi)(shi)(shi);甲苯、二(er)(er)(er)甲苯只能(neng)用于清洗引出(chu)(chu)线及(ji)辅(fu)助工(gong)件(jian),不(bu)能(neng)作稀释剂用,也不(bu)能(neng)清洗被(bei)浸(jin)工(gong)件(jian)的绕(rao)(rao)组(zu);烘(hong)(hong)(hong)焙(bei)时(shi)(shi)(shi)间应(ying)(ying)尽可能(neng)缩短,在(zai)(zai)烘(hong)(hong)(hong)箱(xiang)温度升(sheng)在(zai)(zai)140℃时(shi)(shi)(shi),再将工(gong)件(jian)推烘(hong)(hong)(hong)箱(xiang);被(bei)浸(jin)工(gong)件(jian)推入烘(hong)(hong)(hong)箱(xiang)后,温度升(sheng)至140℃后二(er)(er)(er)小(xiao)时(shi)(shi)(shi),开(kai)始计算(suan)(suan)烘(hong)(hong)(hong)焙(bei)时(shi)(shi)(shi)间,中心高(gao)在(zai)(zai)315及(ji)以上(shang)的电(dian)机,应(ying)(ying)在(zai)(zai)四小(xiao)时(shi)(shi)(shi)后开(kai)始计算(suan)(suan)烘(hong)(hong)(hong)焙(bei)时(shi)(shi)(shi)间,烘(hong)(hong)(hong)焙(bei)时(shi)(shi)(shi)间对319-5F级无(wu)溶剂漆(qi)应(ying)(ying)为四~六小(xiao)时(shi)(shi)(shi);每(mei)批(pi)工(gong)件(jian)应(ying)(ying)抽3~5只绕(rao)(rao)组(zu),测量其(qi)热态绝缘电(dian)阻,其(qi)值应(ying)(ying)大于1.5MΩ;记录烘(hong)(hong)(hong)箱(xiang)温度及(ji)烘(hong)(hong)(hong)焙(bei)时(shi)(shi)(shi)间。

电机维修之浸漆工艺

6.工(gong)艺(yi)过(guo)程:序号、工(gong)艺(yi)过(guo)程、工(gong)艺(yi)条件、工(gong)艺(yi)时间(jian)、绝缘电(dian)阻。

序号

工艺过程

工艺条件

工艺时间

绝缘电阻

1

预烘
140℃±10℃
4小时
≥15MΩ

2

浸漆
常温
20~40分钟

3

滴漆
常温
≥20分钟

4

烘焙升温
140℃±10℃
2~4小时

5

烘焙
140℃±10℃
4


7.浸(jin)漆(qi)质量:浸(jin)渍漆(qi)的粘度(du),浸(jin)漆(qi)次数、温(wen)度(du)时间、绝缘电阻(zu)应(ying)符合工艺要求(qiu);被(bei)(bei)漆(qi)工件(jian)(jian)绕组(zu)的外观光滑、干燥、无(wu)(wu)皱皮、无(wu)(wu)脱落层、无(wu)(wu)漆(qi)须;被(bei)(bei)漆(qi)工件(jian)(jian)绕组(zu)端(duan)部无(wu)(wu)损(sun)伤,绑扎带(dai)不松散、断(duan)裂,槽(cao)楔完整(zheng)无(wu)(wu)缺,引接线无(wu)(wu)损(sun)伤;被(bei)(bei)浸(jin)工件(jian)(jian)的其他零部件(jian)(jian)完好(hao)无(wu)(wu)损(sun),无(wu)(wu)漆(qi)瘤。

8.注(zhu)意事项:浸漆(qi)场地严禁烟火,保(bao)持通风(feng)良好;烘焙(bei)过程(cheng)中,烘箱的(de)循环通风(feng)应常开(kai);烘焙(bei)过程(cheng)中,烘箱不(bu)得(de)任意开(kai)启;漆(qi)缸(gang)应及(ji)时加(jia)盖,减少挥发,每(mei)半年清理漆(qi)缸(gang)一次;经(jing)常对(dui)浸渍漆(qi)做(zuo)理化检测:粘度、电(dian)(dian)气性能、固体含量(liang)、含质等;距烘箱门口(kou)0.5m内,不(bu)得(de)堆放(fang)大型(xing)电(dian)(dian)机的(de)绕组。

附表:319-5F级浸渍漆温度(du)——粘度(du)对照(zhao)表

温度℃

粘度S

8~17

50~35

18~27

35~25

27~37


9.交流电(dian)机(ji)总(zong)装(zhuang)(zhuang)工艺:总(zong)装(zhuang)(zhuang)前(qian)要(yao)(yao)(yao)把该产(chan)品全(quan)部(bu)(bu)零部(bu)(bu)件(jian)配(pei)(pei)齐,不(bu)合(he)格部(bu)(bu)件(jian)更新。短缺(que)部(bu)(bu)件(jian)要(yao)(yao)(yao)全(quan)部(bu)(bu)配(pei)(pei)齐。(包括螺(luo)(luo)丝、螺(luo)(luo)帽);总(zong)装(zhuang)(zhuang)前(qian)必须(xu)先测量(liang)三相定(ding)(ding)子(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)和转(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)绕(rao)组、集电(dian)环刷(shua)架等(deng)(deng)对(dui)地绝缘(yuan)电(dian)阻,直流电(dian)阻阻值要(yao)(yao)(yao)符合(he)要(yao)(yao)(yao)求;前(qian)后端(duan)盖(gai)内(nei)侧面(mian)及(ji)(ji)挡(dang)风(feng)板都(dou)(dou)要(yao)(yao)(yao)涂(tu)防(fang)锈漆;机(ji)座、端(duan)盖(gai)止口(kou)、轴套(tao)、轴承挡(dang)等(deng)(deng)配(pei)(pei)合(he)面(mian)在装(zhuang)(zhuang)配(pei)(pei)时要(yao)(yao)(yao)涂(tu)防(fang)锈油。螺(luo)(luo)栓(shuan)、螺(luo)(luo)母旋(xuan)入部(bu)(bu)分要(yao)(yao)(yao)加(jia)防(fang)锈油脂(zhi);所有(you)(you)紧(jin)(jin)固(gu)件(jian)要(yao)(yao)(yao)旋(xuan)紧(jin)(jin)。松(song)紧(jin)(jin)适(shi)度。有(you)(you)刹车的(de)电(dian)机(ji),转(zhuan)(zhuan)(zhuan)动部(bu)(bu)分上(shang)(shang)的(de)螺(luo)(luo)栓(shuan),六(liu)角平面(mian)要(yao)(yao)(yao)反(fan)边锁(suo)住(zhu);转(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)进(jin)出定(ding)(ding)子(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)要(yao)(yao)(yao)有(you)(you)专人指挥。操作(zuo)者(zhe)不(bu)得(de)(de)擦伤线圈、扎带,槽楔(xie)等(deng)(deng);总(zong)装(zhuang)(zhuang)前(qian)要(yao)(yao)(yao)吹清定(ding)(ding)、转(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)内(nei)灰尘、纸屑等(deng)(deng)绝缘(yuan)碎片(pian),并要(yao)(yao)(yao)将定(ding)(ding)子(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)内(nei)孔及(ji)(ji)定(ding)(ding)、转(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)通风(feng)孔内(nei)的(de)漆皮清除,保(bao)证风(feng)道畅通。转(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)上(shang)(shang)风(feng)叶(ye)要(yao)(yao)(yao)整(zheng)齐,如有(you)(you)断缺(que)应(ying)(ying)补齐;定(ding)(ding)子(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)吊攀应(ying)(ying)垂直转(zhuan)(zhuan)(zhuan)轴中(zhong)心,否则用调(diao)(diao)节(jie)垫片(pian)调(diao)(diao)整(zheng)旋(xuan)紧(jin)(jin);转(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)上(shang)(shang)叶(ye)片(pian)与定(ding)(ding)子(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)上(shang)(shang)挡(dang)风(feng)罩的(de)距离应(ying)(ying)在10~30毫米之(zhi)(zhi)间;所有(you)(you)接(jie)(jie)地螺(luo)(luo)丝应(ying)(ying)用镀(du)锌(xin)螺(luo)(luo)丝;出线盒内(nei)部(bu)(bu)要(yao)(yao)(yao)油漆、接(jie)(jie)线板上(shang)(shang)接(jie)(jie)线端(duan)子(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)都(dou)(dou)要(yao)(yao)(yao)拧紧(jin)(jin)不(bu)能松(song)动。引(yin)出线要(yao)(yao)(yao)排(pai)列整(zheng)齐有(you)(you)序;提(ti)刷(shua)装(zhuang)(zhuang)置要(yao)(yao)(yao)灵活(huo),电(dian)刷(shua)与集电(dian)环拉解良好。如接(jie)(jie)触(chu)面(mian)小(xiao)于80%,应(ying)(ying)重(zhong)磨。集电(dian)不(bu)的(de)接(jie)(jie)触(chu)片(pian)与短路环要(yao)(yao)(yao)接(jie)(jie)触(chu)良好;滑动轴承箱式电(dian)机(ji)总(zong)装(zhuang)(zhuang)时要(yao)(yao)(yao)仔细(xi)的(de)调(diao)(diao)整(zheng),定(ding)(ding)、转(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)气隙和定(ding)(ding)转(zhuan)(zhuan)(zhuan)子(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)(zi)铁心的(de)中(zhong)心要(yao)(yao)(yao)对(dui)齐。然后配(pei)(pei)定(ding)(ding)位(wei)圆柱肖(xiao)锁(suo)住(zhu);滑动轴承,轴瓦和思(si)索(suo)轴的(de)接(jie)(jie)触(chu)面(mian)要(yao)(yao)(yao)配(pei)(pei)合(he)良好,气隙要(yao)(yao)(yao)求调(diao)(diao)整(zheng)在千分之(zhi)(zhi)一(yi)点五到千分之(zhi)(zhi)三之(zhi)(zhi)间;装(zhuang)(zhuang)配(pei)(pei)好后应(ying)(ying)转(zhuan)(zhuan)(zhuan)动是否灵活(huo)。如觉得(de)(de)太重(zhong)应(ying)(ying)检查调(diao)(diao)整(zheng),到轻(qing)松(song)自如为止;凡铭(ming)牌字迹(ji)不(bu)清或(huo)铭(ming)牌失落者(zhe)一(yi)律应(ying)(ying)换本中(zhong)心铭(ming)牌出厂(chang);总(zong)装(zhuang)(zhuang)结束(shu)后要(yao)(yao)(yao)敲(qiao)修(xiu)理者(zhe)标记,以加(jia)强(qiang)责(ze)任感。标记敲(qiao)在轴端(duan)平面(mian)上(shang)(shang);联轴器及(ji)(ji)附件(jian)待电(dian)机(ji)试验合(he)格后装(zhuang)(zhuang)上(shang)(shang)。以免(mian)不(bu)合(he)格反(fan)复;试验合(he)格后入库;


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