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</div> </div> <div id="1vqw39b74s" class="main_right"> <div id="1vqw39b74s" class="sitemap"> 当å‰ä½ç½®ï¼?a href="/">首页</a> > <a href="newstype21003.html">常è§é—®é¢˜</a> > <a href="news497442.html">镀锌管ç¦å·žç£ç„Šæžªç„ŠæŽ¥æ³¨æ„事é¡?/a> </div> <div id="1vqw39b74s" class="content"> <div id="1vqw39b74s" class="news_xaingxi"> <h1>镀锌管ç¦å·žç£ç„Šæžªç„ŠæŽ¥æ³¨æ„事é¡?/h1> </div> <div id="1vqw39b74s" class="news_author"> æ¥æºï¼šhttp://goldsailusa.com/news497442.html å‘布时间ï¼?019-08-12 00:00:00 </div> <div id="1vqw39b74s" class="news_content"> <p> <span style="font-size:16px;"><strong>镀锌管</strong></span><span style="font-size:16px;"><strong>ç¦å·ž<a href="//goldsailusa.com" target="_blank"><strong>ç£ç„Šæž?/strong></a></strong></span><span style="font-size:16px;"><strong>焊接注æ„事项</strong></span> </p> <p> <span style="font-size:16px;">镀锌管是è€è…蚀,硬度高,是目å‰å¸¸ç”¨çš„æ°”管设备。曾ç»ï¼Œå°ç¼–也介ç»äº†å¾ˆå¤šé•€é”Œç®¡çš„常识,信任我们都知é“ã€‚å¯æ˜¯ï¼Œé•€é”Œç®¡çš„焊接作业性相当强,å¯èƒ½éš¾ä»¥æŠŠæ¡ã€‚坿˜¯æ²¡å…³ç³»ï¼Œæ—¢ç„¶æ—¥å­ç»å¸¸è¿ç”¨ï¼Œäº†è§£ç„ŠæŽ¥çš„å¸¸è¯†ä¹Ÿå¾ˆå¥½ã€‚ä»Šå¤©ï¼Œä¸ºæˆ‘ä»¬ä»‹ç»é•€é”Œç®¡çš„焊接注æ„事项。(内容æ¥æºäºŽç½‘络,仅供å‚考)</span> </p> <p> <span style="font-size:16px;">一ã€ç„пޥå‰çš„焊接部ä½å¿…é¡»è¦ç”?/span><span style="font-size:16px;">ç¦å·ž<a href="/protype86465.html" target="_blank"><strong>ç£ç„Šæž?/strong></a></span><span style="font-size:16px;">打磨焊接部ä½çš„镀锌层。å¦åˆ™ä¼šå‘生气泡ã€ç ‚ç›®ã€æš‚æ—¶ç„ŠæŽ¥ç­‰ã€‚ç„ŠæŽ¥å˜è„†ï¼Œåˆšæ€§ä¸‹é™ã€?/span> </p> <p> <span style="font-size:16px;">二ã€ç„ŠæŽ¥åŠžæ³•ä»‹ç»?在焊接多层焊接的ç¬?层焊接时,尽é‡ä½¿é”Œå±‚熔èžï¼Œä½¿å…¶æ°”化,使其蒸腾,使焊接逃逸,å¯ä»¥å¤§å¹…åº¦å‰Šå‡æ¶²ä½“锌残留在焊接上的状况。焊ç¼ç„ŠæŽ¥çš„çŠ¶å†µä¸‹ï¼Œåœ¨ç¬¬1层尽é‡ä½¿é”Œå±‚ç†”èžæ°”化ã€è’¸è…¾è€Œä½¿ç„ŠæŽ¥è„±ç¦»çš„åŠžæ³•,是将焊æ¡ç«¯éƒ¨å‘剿–¹ä¼¸å‡ºçº¦5~7mmå·¦å³ï¼Œä½¿é”Œå±‚熔èžåŽï¼Œè¿”回本æ¥çš„ä½ç½®ç»§ç»­å‘剿–¹ç„ŠæŽ¥çš„åŠžæ³•ã€‚æ¨ªç„Šå’Œç«‹ç„Šçš„çŠ¶å†µä¸‹ï¼Œå‡å¦‚挑选j427这样的短焊æ¡çš„è¯ï¼Œå’¬åˆçš„倾å‘就会å˜å°ã€‚å‡å¦‚选用å‰åŽçš„å¾€å¤è¾“é€æŠ€èƒ½çš„è¯ï¼Œå°±å¯ä»¥å¾—到没有缺陷的焊接质é‡ã€?/span> </p> <p> <span style="font-size:16px;">三ã€é•€é”Œé’¢ç„ŠæŽ¥çš„ç‰¹ç‚¹åˆ†æž?/span> </p> <p> <span style="font-size:16px;">镀锌钢一般在低碳钢之外镀锌,镀锌层一般厚度为20μm。锌的熔点为419°c,沸点为908°cå·¦å³ã€?/span><span style="font-size:16px;">ç¦å·žç£ç„Šæž?/span><span style="font-size:16px;">åœ?/span><span style="font-size:16px;">ç¦å·žç£ç„Šæž?/span><span style="font-size:16px;">焊接中,锌熔化,液体浮在熔池的外表,æˆä¸ºç„ŠæŽ¥çš„æ ¹éƒ¨çš„ä½ç½®ã€‚é”Œå¯¹é“æœ‰å¾ˆå¤§çš„å›ºæº¶åº¦ï¼Œé”Œæ¶²ä½“æ²¿ç€æ™¶ç•Œæ·±æ·±è…蚀焊接金属,低熔点锌形æˆâ€œæ¶²ä½“金属脆化â€ã€?/span> </p> <p> <span style="font-size:16px;">一起,锌和é“å½¢æˆé‡‘属间的脆性化åˆç‰©ï¼Œè¿™äº›è„†æ€§ç›¸ä½¿ç„ŠæŽ¥é‡‘å±žçš„å¡‘æ€§é™ä½Žï¼Œå› æ‹‰ä¼¸åº”力而å‘生龟裂。圆角焊接,特别是t形接头的圆角焊接,很容易å‘生贯穿裂纹ã€?/span><span style="font-size:16px;">ç¦å·žç£ç„Šæž?/span><span style="font-size:16px;">在焊接镀锌钢时,与å¡å£å¤–表ç»ç¼˜çš„锌层,用电弧热氧化ã€ç†”èžã€è’¸è…¾ï¼ŒæŒ¥å‘出白色的烟尘和蒸汽,简å•引起焊接气孔ã€?/span> </p> <p> <span style="font-size:16px;">å››ã€æ€Žä¹ˆæŽ§åˆ¶é•€é”Œé’¢</span><span style="font-size:16px;">ç¦å·žç£ç„Šæž?/span><span style="font-size:16px;">的焊接技能呢ï¼?/span> </p> <p> <span style="font-size:16px;">镀锌钢</span><span style="font-size:16px;">ç¦å·žç£ç„Šæž?/span><span style="font-size:16px;">焊接å‰çš„准备与一般的低碳钢相åŒï¼Œ</span><span style="font-size:16px;">ç¦å·žç£ç„Šæž?/span><span style="font-size:16px;">应注æ„对å¡å£å°ºåº¦å’Œé™„近的镀锌层进行仔细处ç†ã€‚为了焊接,å¡å£å°ºåº¦é€‚当,一般为60~65°,ä¿ç•™ä¸€å®šçš„间隙,为了削å‡ä¸€èˆ¬ä¸º1.5~2.5mm的锌å‘焊接的浸é€ï¼Œåœ¨ç„пޥå‰ï¼Œå¯ä»¥å޻除å¡å£å†…的镀锌层åŽå†è¿›è¡Œç„пޥã€?/span> </p> <p> <span style="font-size:16px;">在实践的监ç†ä¸šåŠ¡ä¸­ï¼Œé€‰ç”¨ä¼šé›†çš„å¡å£ï¼Œé€‰ç”¨ä¸æ®‹ç•™é’Ÿè¾¹çš„æŠ€èƒ½è¿›è¡Œä¼šé›†æŽ§åˆ¶ï¼ŒåŒé‡ç„ŠæŽ¥æŠ€èƒ½ï¼Œå‰Šå‡äº†æœªç„ŠæŽ¥çš„å¯èƒ½æ€§ã€‚焊æ¡åº”æ ¹æ®é•€é”Œç®¡çš„基ææè´¨æŒ‘选,一般的低碳钢考虑æ“作性ã€?/span> </p> <p> <span style="font-size:16px;">以上就是<a href="//goldsailusa.com" target="_blank"><strong>ç¦å·žæ°å› ç‰¹å¡‘料焊接设备有é™å…¬å?/strong></a>总结的内容,希望对大家有所帮助ï¼?br /> <div> <img src="/img.ashx?shopid=17738&file=20190812061923.jpg" /><br /> </div> <br /> </span> </p> </div> <div id="1vqw39b74s" class="pagess"> <ul> <div>上一æ¡ï¼š<a href="news497443.html">ç£ç„ŠæžªåŽ‚å®¶ï¼šç§‘æ™®U型止水带的用é€?/a></div><div>下一æ¡ï¼š<a href="news497441.html">工业热风加热器工业ç¦å·žçƒ­é£Žç„Šæžªæ“作过程留æ„细èŠ?/a></div> </ul> </div> <div id="1vqw39b74s" class="info_key"> <span> 此文关键字:<a href='/news.html?key=ç¦å·žç£ç„Šæž?>ç¦å·žç£ç„Šæž?/a>,<a href='/news.html?key=ç¦å·žç£ç„ŠæžªåŽ‚å®?>ç¦å·žç£ç„ŠæžªåŽ‚å®?/a>,<a href='/news.html?key=ç¦å·žç£ç„Šæžªå…¬å?>ç¦å·žç£ç„Šæžªå…¬å?/a>, </span> </div> </div> <div id="1vqw39b74s" 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