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專業生產銷售大口徑厚壁國標螺旋鋼管,廠內加工防腐/保溫/涂塑

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直埋給水內外防腐鋼管供應商

日期:2020-05-31

水泥砂漿防腐鋼管制造供應商噴涂法是指使用噴涂機將水泥砂漿在鋼管內部涂抹并壓光的施工工藝,一般適用于直徑700mm以上的管道內防腐施工。下面以噴涂法為例介紹供水鋼管內防腐施工工藝的主要作業流程。水泥砂漿襯里的局部出現大面積空鼓現象,成因歸納起來有以下三種主要原因:首先管壁因除銹在局部發生的打光現象影響了砂漿底層與管壁的結合力,這一點可在除銹時加強監督力度來避免;其次較厚的水泥砂漿襯里層在噴涂施工中,要加強砂漿襯里層的潮濕養護力度。水泥砂漿防腐管利用水泥砂漿特有的堿性,使管道內表面形成鈍化膜而得到保護的技術,已被水管道的內防腐廣泛采用。

直埋給水內外防腐鋼管供應商

水泥砂漿防腐鋼管用普通的水泥與必定粗細的黃沙,添加劑,依照規劃的合作比,拌制成砂漿,經過專用的施工機械設備,涂敷到管道內壁上,構成必定厚度的砂漿涂層,凝固后變成面料。水泥砂漿面料,依托本身的結合力與管道壁的支撐,其構造均勻細密,堅固結實,如果在沙漿外表再涂刷環氧樹脂,其通水后的粗糙系數還可再下降。水泥砂漿面料不僅是物理功能上簡略的阻隔屏障,使水抵達管壁時不再具有腐蝕性。

主站蜘蛛池模板: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |