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</p> <p> <span style="font-size:16px;">地址åQ?/span><span style="font-size:16px;">贵州省贵阛_¸‚白云åŒø™‰³å±Þqº¢æ?/span> </p> </div> </div> <div class="clear"></div> <!----------------chanpin-----------------------------------------> </div> <div class="iright"> <div class="jp-title title"> <div class="title01"><span>您现在所在的位置是:<a href="/">首页</a> > <a href="/news/">新闻信息</a> > 详细内容</span>新闻详情</div> </div> <div class="about_down"> <div class="tit05_m"> <div class="innerbox"> <div id="newscontent"> <div class="newstitle"><h1 style="font-size:18px;">贵州厂家为您解析如何‹‚€‹¹‹èžºæ—‹é’¢½Ž¡çš„质量</h1></div> <div class="info">来源 : <a href='http://www.xisimeng.com/news/38.html'>http://www.xisimeng.com/news/38.html</a>   å‘布旉™—´ : 2018-06-20 </div> <div id="con" class="con"><p> <span style="font-size:16px;font-family:SimSun;">螺旋<a href="http://www.xisimeng.com/gg/" target="_blank">钢管</a>在出厂之前应做机械性能试验和压扁试验以及扩口试验,òq¶è¦è¾‘Öˆ°æ ‡å‡†è§„定的要求。螺旋钢½Ž¡çš„质量‹‚€‹¹‹æ–¹æ³•å¦‚下:</span> </p> <p> <span style="font-size:16px;font-family:SimSun;"> 1、从表面上判断,也就是在外观‹‚€éªŒã€‚焊接接头的外观‹‚€éªŒæ˜¯ä¸€¿Uæ‰‹¾l­ç®€ä¾¿è€Œåˆåº”用òq¿æ³›çš„检验方法,是成品检验的一个重要内容,主要是发现焊¾~è¡¨é¢çš„¾~ºé™·å’Œå°ºå¯æ€¸Šçš„偏差。一般通过肉眼观察åQŒå€ŸåŠ©æ ‡å‡†æ äh¿ã€é‡è§„和攑֤§é•œç­‰å·¥å…·˜q›è¡Œ‹‚€éªŒã€‚若焊缝表面出现¾~ºé™·åQŒç„Š¾~å†…部便有存在缺é™ïLš„可能ã€?/span> </p> <p> <span style="font-size:16px;font-family:SimSun;"> 2、物理方法的‹‚€éªŒï¼šç‰©ç†çš„检验方法是利用一些物理现象进行测定或‹‚€éªŒçš„æ–ÒŽ³•ã€‚材料或工äšg内部¾~ºé™·æƒ…况的检查,一般都是采用无损探伤的æ–ÒŽ³•ã€‚无损探伤有­‘…声波探伤、射¾U¿æŽ¢ä¼¤ã€æ¸—透探伤、磁力探伤等ã€?/span> </p> <p> <span style="font-size:16px;font-family:SimSun;"> 3、受压容器的强度‹‚€éªŒï¼šå—压容器åQŒé™¤˜q›è¡Œå¯†å°æ€§è¯•éªŒå¤–åQŒè¿˜è¦è¿›è¡Œå¼ºåº¦è¯•éªŒã€‚常见有水压试验和气压试验两¿Uã€‚它们都能检验在压力下工作的容器和管道的焊缝致密性。气压试验比水压试验更äؓ灉|•å’Œé€Ÿï¼ŒåŒæ—¶è¯•éªŒåŽçš„产品不用排水处理åQŒå¯¹äºŽæŽ’æ°´å›°éš„¡š„产品ž®¤äؓ适用。但试验的危险性比水压试验大。进行试验时åQŒå¿…™å»éµå®ˆç›¸åº”的安全技术措施,以防试验˜q‡ç¨‹ä¸­å‘生事故ã€?/span> </p> <p> <span style="font-size:16px;font-family:SimSun;"> 4、致密性检验:贮存液体或气体的焊接容器åQŒå…¶ç„Šç¼çš„不致密¾~ºé™·åQŒå¦‚贯穿性的裂纹、气孔、夹渣、未焊透和疏松¾l„织½{‰ï¼Œå¯ç”¨è‡´å¯†æ€§è¯•éªŒæ¥å‘现。致密性检验方法有åQšç…¤æ²¹è¯•éªŒã€è²æ°´è¯•éªŒã€æ°´å†²è¯•éªŒç­‰ã€?/span> </p> <p> <span style="font-size:16px;font-family:SimSun;"> 5、静水试验每栚w’¢½Ž¡åº”做静水压试验而无渗漏现象åQŒè¯•éªŒåŽ‹åŠ›æŒ‰ä¸‹è¯•è®¡ç®—P=2ST/D式中S—静水压试验的试验应力MpaåQŒé™æ°´è¯•éªŒçš„试验应力按相应钢带标准规定屈服度较小å€û|¼ˆQ235ä¸?35MpaåQ‰çš„60%选取。稳压时é—ß_¼šD<508试验压力保持旉™—´ä¸å°‘äº?¿U’ï¼›Dâ‰?08试验压力保持旉™—´ä¸å°‘äº?0¿U?åQŒæ— æŸæ£€‹¹‹é’¢½Ž¡çš„补焊焊缝、钢带对头焊¾~åŠçŽ¯å‘¾~åº”˜q›è¡ŒXž®„线或超声æ‡L‹‚€éªŒã€‚对于可燃普通流体输送用的钢向的螺旋焊缝应进è¡?00%SXž®„线或超声æ‡L‹‚€éªŒï¼Œå¯¹ç”¨äºŽæ°´ã€æ±¡æ°´ã€ç©ºæ°”、采暖蒸汽等普通流体输送用的钢½Ž¡çš„螺旋焊缝应进行Xž®„线或超声æ‡L‹‚€éªŒæŠ½æŸ¥ï¼ˆ20%åQ‰ã€?/span> </p> <p> <span style="font-size:16px;font-family:SimSun;"> æ ÒŽ®èžºæ—‹é’¢ç®¡è´¨é‡‹‚€éªŒç»“果,通常ž®†èžºæ—‹é’¢½Ž¡åˆ†ä¸ÞZ¸‰¾c»ï¼šåˆæ ¼å“ã€è¿”修品和废品。合格品指外观质量和内在质量½W¦åˆæœ‰å…³æ ‡å‡†æˆ–交货验收技术条件的螺旋钢管åQ›è¿”修品指外观质量和内在质量不完全符合标准和验收条体åQŒä½†å…è®¸˜q”ä¿®åQŒè¿”修后能达到标准和验收条äšg的螺旋钢½Ž¡ï¼›åºŸå“æŒ‡å¤–观质量和内在质量不合æ û|¼Œä¸å…è®¸è¿”修或˜q”修后仍达不到标准和验收条äšg的螺旋钢½Ž¡ã€?/span> </p> <p style="text-align:center;"> <span style="font-size:16px;font-family:SimSun;"><img src="/uploads/image/20180620/20180620112423_5869.jpg" alt="" /><br /> </span> </p> </div> <p><div>上一æ?<a href="39.html">贵阳金阳双诚建筑¿UŸèµç«™äؓ您介¾lé’¢æ¨¡æ¿è®¾è®¡åˆ¶ä½œçš„技术要æ±?/a></div> <div>下一æ?<a href="37.html">贵州厂家‹¹…谈塔式、碗扣式、扣件式三种脚手架的优缺ç‚?/a></div> </p> <div class="tag">相关标签åQ?a href='/key.aspx?k=%e8%9e%ba%e6%97%8b%e9%92%a2%e7%ae%a1'>螺旋钢管</a>,</div> <div class="bzone"> <h3 class="title03">相关信息</h3> <div class="news_list"> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td><a href="/news/38.html" >贵州厂家为您解析如何‹‚€‹¹‹èžºæ—‹é’¢½Ž¡çš„质量</a></td> </tr> </table> </div> <h3 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