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盖帽焊机螺母点焊机焊头选择和螺母点焊焊点形成过程

发布时间:2022-03-24 14:36:37  浏览次数:222

        螺(luo)母(mu)点(dian)(dian)焊(han)用(yong)(yong)于(yu)汽车零部件(jian)制造(zao)不可(ke)缺少且非常(chang)重要的(de)一制造(zao)环节,底(di)盘(pan)螺(luo)母(mu)点(dian)(dian)焊(han)和(he)汽车电池板盖(gai)侧面(mian)(mian)(mian)螺(luo)母(mu)点(dian)(dian)焊(han),它是利用(yong)(yong)焊(han)接(jie)(jie)件(jian)原有的(de)形状,倒角(jiao),底(di)面(mian)(mian)(mian)或定制的(de)凸点(dian)(dian)进行焊(han)接(jie)(jie)到另一块面(mian)(mian)(mian)积较大的(de)焊(han)接(jie)(jie)母(mu)材上(shang),因为(wei)是凸点(dian)(dian)接(jie)(jie)触,提高(gao)了单位面(mian)(mian)(mian)积上(shang)的(de)压力与电流(liu),有利于(yu)板件(jian)表(biao)面(mian)(mian)(mian)氧化膜的(de)膜裂与热量(liang)集中,减(jian)小了分流(liu),也可(ke)用(yong)(yong)于(yu)厚度比超过1:6板材焊接,另外板材焊接可采用多点凸焊,以提高生产率和降低点焊机焊头的损耗,在在焊接螺母或者螺栓时,平头电极焊接,零件表面平整无压坑,且会让电极头使用寿命加长。凸焊机即可在通用点焊机上进行,也可在专用凸焊机上进行,广泛用与成批生产汽车螺母焊接。材质如:不锈钢,镀锌板,碳钢,高强板等;螺母形状如:三角,四角,六角,圆形,T型,十字型,平板等零件的焊接。

螺母点焊机

        螺母点(dian)焊(han)焊(han)点(dian)形成过程(cheng)

        螺(luo)(luo)母(mu)(mu)(mu)点(dian)(dian)焊(han)焊(han)点(dian)(dian)形(xing)成(cheng)(cheng)和常(chang)规点(dian)(dian)焊(han)相似,可分为(wei)预(yu)压(ya)(ya)(ya)、凸(tu)点(dian)(dian)压(ya)(ya)(ya)溃和成(cheng)(cheng)核三个(ge)阶段。预(yu)压(ya)(ya)(ya)前螺(luo)(luo)母(mu)(mu)(mu)与钣(ban)金(jin)孔需(xu)要绝缘(yuan)销进行定(ding)(ding)位,螺(luo)(luo)母(mu)(mu)(mu)凸(tu)点(dian)(dian)在电极压(ya)(ya)(ya)力(li)下开始(shi)变形(xing),其高(gao)度(du)降低(di),与下板的接触面(mian)(mian)积增(zeng)大(da)。当(dang)电极压(ya)(ya)(ya)力(li)达到预(yu)定(ding)(ding)值(zhi)时(shi),螺(luo)(luo)母(mu)(mu)(mu)凸(tu)点(dian)(dian)有一定(ding)(ding)程(cheng)度(du)的压(ya)(ya)(ya)塌(ta),下板面(mian)(mian)也形(xing)成(cheng)(cheng)一个(ge)不深的压(ya)(ya)(ya)坑(keng)。通过电流(liu)后电流(liu)集中流(liu)经凸(tu)点(dian)(dian)的基(ji)础面(mian)(mian)。加(jia)热集中,在很短时(shi)间(jian)内螺(luo)(luo)母(mu)(mu)(mu)凸(tu)点(dian)(dian)所余高(gao)度(du)全部被(bei)压(ya)(ya)(ya)溃,螺(luo)(luo)母(mu)(mu)(mu)与板材基(ji)本贴合,为(wei)第二阶段 。自螺母(mu)凸点被压溃,与板(ban)材(cai)贴合开始,形成(cheng)较(jiao)大的(de)(de)加热区,有个别接触点的(de)(de)熔化逐步扩大成(cheng)足够尺寸的(de)(de)熔核和塑(su)性(xing)区,完成(cheng)螺母(mu)凸焊(han)的(de)(de)第三个阶段。

        盖帽焊(han)(han)(han)机螺母点焊(han)(han)(han)机焊(han)(han)(han)头选择

        螺(luo)(luo)母(mu)点(dian)焊(han)机一般采用绝缘定(ding)(ding)位分体式电(dian)(dian)极(ji)(ji)(ji)进行焊(han)接。上电(dian)(dian)极(ji)(ji)(ji)头(tou)(tou)为(wei)平头(tou)(tou),下(xia)电(dian)(dian)极(ji)(ji)(ji)为(wei)螺(luo)(luo)母(mu)点(dian)焊(han)头(tou)(tou),焊(han)机上电(dian)(dian)极(ji)(ji)(ji)下(xia)压(ya)(ya),下(xia)电(dian)(dian)极(ji)(ji)(ji)定(ding)(ding)位销进行板(ban)材(cai)螺(luo)(luo)母(mu)定(ding)(ding)位,压(ya)(ya)下(xia)接触进行螺(luo)(luo)母(mu)凸(tu)焊(han)接。螺(luo)(luo)母(mu)点(dian)焊(han)头(tou)(tou)材(cai)质(zhi):焊(han)头(tou)(tou)材(cai)质(zhi)一般是铬锆铜,氧化铝铜等两种材(cai)质(zhi),定(ding)(ding)位销为(wei)陶瓷(ci),KCF,氮化硅等绝缘材料。

         

         

        

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