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width="30" height="36"> </td> <td width="673" align="center" style="color:#000000; font-size:16px; font-weight:bold"> <h1>?sh)子束焊讑֤的操作与安全防?/h1> </td> <td width="51"> </td> </tr> <tr> <td> </td> <td> </td> <td> </td> </tr> </table></td> </tr> <tr> <td align="center" style="color:#999999"><strong>发布旉Q?/strong>2018-07-04 <strong>来源Q?/strong>沈阳威克创新焊接讑֤有限公司 </td> </tr> <tr> <td height="20"> </td> </tr> <tr> <td> <p><a href="http://www.haoyimin123.com/">?sh)子?/a>焊设备的操作与安全防?/p> <p>1、启动,在真I室内的工g安装qA后,关闭真空Q然后接通冷却水Q闭合ȝ(sh)源开养I按真I系l的操作序启动机械泉|散܇Q待真空室内的真I度辑ֈ预定植时便可q入施焊阶段Q真I系l的操作及注意事:(x)真空与大气切断而{向需要抽气的部gQ扩散܇必须在机械܇预抽真空辑ֈ一定的真空度才能加热,停止加热后,必须待扩散܇完全冷却下来才能关闭机械泵,否则扩散늚Ҏ(gu)被氧化,停止机械泵前Q必d关闭机械泉|气口的阀门,使其与真I系l断开Q再与大气接通,以免机械泵进入真I系l,真空pȝ及工作室内部应保持良好的真空卫生Q停止工作时必须保持其内部有一定的真空度?/p> <p>2、焊接。将?sh)子枪的供?sh)甉|接通,q渐升高加速电(sh)压之达到所需数|然后相应的调节灯丝电(sh)和轰击?sh)压Q有适当的?sh)子束流出Q在工g上看到电(sh)子束焦点Q在调节聚集甉|Q?sh)子束的焦点辑ֈ最佳状态,假如焦点偏离接缝Q可调节偏{U圈甉|或电(sh)子枪横向Ud使其对中Q此时调节蘪ȝ(sh)源?sh)子束?sh)达到预定数|按下启动按钮、工件按预定速度UdQ进入正常焊接过E?/p> <p>3、停止。焊接结束时Q必d逐渐减小偏{?sh)压使?sh)子束焦点d焊缝Q然后把加速电(sh)压降低到Ӟq把灯丝甉|及传动装|的甉|降到零|此后切断高压甉|、聚焦偏转电(sh)源和传动装置甉|Q这样就完成了一ơ焊接,待工件冷却后Q按真空操作E序从真I室中取出工件?/p> <p>4、安全防护。高压电(sh)子束焊机的加速电(sh)压可?50KVQ防止高压电(sh)ȝ防护措施主要是针对hw安全和讑֤安全Q必采取尽可能完善的绝~和防护措施Q保证高压电(sh)源和?sh)子枪有_的绝~,耐压实验应ؓ(f)额定?sh)压?.5倍,讑֤外壳应接地良好,采用专用地线Q接地电(sh)d于3ΩQ更换阴极组件或l修Ӟ要切断高压电(sh)源,q用接地良好的放甉|接触准备更换的零件或需要维修的地方Q放完电(sh)才可以操作,焊工操作时应佩戴耐高压的l缘手套、穿l缘鞋?/p> <p>5、电(sh)子束焊接ӞU?%的射U能量{变ؓ(f)X线辐射Q因此必d强对X线的防护措施,加速电(sh)压低?0KV的焊机,一般靠机器外壳的钢板厚度来防护Q加速电(sh)压高?0KV的焊机,外壳应附加够厚度的铅板加强防护Q电(sh)子束焊机在高压下q行Q观察窗应选用铅玻璃,铅玻璃的厚度可按相应的铅当量选择Q对于高压大功率?sh)子束设备,可将高压甉|讑֤和抽气装|与工作人员的操作室分开Q焊接过E中不准用肉D察熔池,必要时应佩戴铅玻璃防护眼镜?/p> <p>此外Q设备周围应通风良好Q工作场所应安装抽气装|,以便真I室排出的a气、烟等及时排除?/p> <p> </p> <p> </p> <p> </p> <p>                                                --沈阳威克创新焊接讑֤有限公司</p> </td> </tr> <tr> <td height="20"> </td> </tr> </table></td> </tr> </table> </td> </tr> </table> ?table border="0" width="970" height="68" cellspacing="1" cellpadding="0" background="/images/bott_bg.gif" align="center"> <tr> <td height="20" > <p align="center" style="padding-top:10px"> <font color="#FFFFFF">版权所?沈阳威克创新焊接讑֤有限公司Copyright ©2007-2018 </font> </p><br /> </td> </tr> <tr> <td> <p align="center"> 地址Q沈阛_于洪区沈大\146-2?nbsp; ?sh)话Q?24-31029733 31029732  传真Q?24-62665536  E-mailQ?shenyangweike@163.com   <script type="text/javascript"> var _bdhmProtocol = (("https:" == document.location.protocol) ? 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