hdpe中空壁缠绕管是以聚氯乙烯为主要原料,内壁光滑、外壁波纹,内外之间呈中空环状结构。hdpe中空壁缠绕管具有以下特点:外形美观、柔韧性好环钢度强,抗压力好,耐腐蚀、抗老化。今日咱们就谈下hdpe中空壁缠绕管的外观有哪些要求?
HDPE hollow wall winding pipe is made of PVC. The inner wall is smooth and the outer wall is corrugated. HDPE hollow wall winding pipe has the following characteristics: beautiful appearance, good flexibility, strong ring steel, good pressure resistance, corrosion resistance and anti-aging. Today, let's talk about the appearance requirements of HDPE hollow wall winding pipe?
1、hdpe中空壁缠绕管内外壁不得有气泡、裂口、分裂变色线及明显的标志;
1. The inner and outer wall of HDPE hollow wall winding pipe shall be free of bubbles, cracks, split color lines and obvious signs;
2、hdpe中空壁缠绕管管材内壁应光滑平整不应有明显波纹,套管外壁波纹要均匀,不得有凹陷现象。
2. The inner wall of HDPE hollow wall wound pipe shall be smooth and flat without obvious corrugation, and the outer wall of the casing shall be even without depression.
3、hdpe中空壁缠绕管套管波纹凹部内外壁应紧密熔接,不得有脱开现象。
3. The inner and outer walls of the corrugated concave part of the HDPE hollow wall winding pipe sleeve shall be welded tightly without separation.
4、hdpe中空壁缠绕管的端部切口要平整、光滑。切面于管材的轴线(垂直度偏差不超过更小平均内径的3.5%)。切割位置控制在内外壁粘合处。
4. The end cut of HDPE hollow wall winding pipe should be flat and smooth. Cut to the axis of the pipe (perpendicularity deviation shall not exceed 3.5% of the minimum average inner diameter). The cutting position is controlled at the bonding position of the inner and outer walls.
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