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class='key_tag'><font><strong>通風管道</strong></font></a>中彎頭、異徑管、三通、風道套管的加工制造。當矩形風管采用內外圓弧彎頭時，風管內圓弧半徑R與彎管邊長A之比應為R/A。</span></p><p style="line-height: 2em;"><span style="font-family: 微軟雅黑, Microsoft YaHei; font-size: 14px;"></span></p><p style="text-align:center"><img src="/data/upload/201910/20191023173018_599.jpg" alt="重慶消防排煙風管" title="重慶消防排煙風管" style="width: 397px; height: 259px;" width="397" vspace="0" height="259" border="0"/></p><p style="line-height: 2em;"><span style="font-family: 微軟雅黑, Microsoft YaHei; font-size: 14px;">　　通風管道的維護方法<br/>　　1.當風管壁的破損已經達到玻璃纖維保溫層時，可以把破損的地方切掉，重新打開公母搭接，另選一塊完好的板材。根據裁剪好的板材尺寸，裁剪出公母搭接接頭，周邊接頭涂上修補膠和膠粘劑，按照工藝規范進行密封。<br/>　　2.如果風道外表面有輕微損壞，可以用專用密封膠修復。<br/>　　3.如果風管內表面有輕微損傷，可以用專用修復膠進行修復。<br/>　　4.如果風管外表面鋁箔層損壞，但玻璃纖維保溫層未損壞，可選擇合格的鋁箔對管道鋁箔表面進行修補。<br/>　　5.那么，當風道損壞嚴重，損壞面積比較大，可能影響通風風道系統的正常運行時，就需要對風道進行更換和維修，以保證通風系統的正常運行。</span><br/></p></div> <div class="xypg-detail-tags"> <div class="tags-title"> <h3>標簽</h3> <div class="baidu-share">  <div class="bdsharebuttonbox"> <a href="#" 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