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我矿井下生产条件较差,生产、生活用管道易出现穿孔、破裂。在井下焊补也不方便,还要影响生产。根据我矿井下管道的特殊情况,我们常用一种十分简单的修补方法,现介绍如下。 若有一公称通径为50mm的管子出现了直径约20mm的穿孔,就切割一段公称通径仍为50mm、长度为60mm的管子(管长一般是穿孔直径的2～3倍),沿管中心切开、分为两半。将半片管内径放到50mm通径管的外径上敲打,使其内径与50mm管外
I mine under poor production conditions, production, life pipe prone to perforation, rupture. Welding in the mine is not convenient, but also affect the production. According to the special circumstances of mine pipes, we often use a very simple method of repair, are described below. If a pipe with a nominal diameter of 50 mm appears perforated with a diameter of about 20 mm, cut a length of 50 mm and a length of 60 mm of pipe (the pipe length is usually 2 to 3 times of the perforated diameter) Open, divided into two halves. The half-tube diameter on the diameter of the 50mm diameter tube beat beat, so that the inner diameter and 50mm tube