Hubei anti-seepage membrane crawling welding machine Shandong Yantai tunnel breeding waterproof cloth welding machine

Description :

　　Which is a good Hubei anti-seepage membrane crawling welding machine and Shandong Yantai aquaculture waterproof cloth welding machine

　　Welding operation: Before welding begins, the hot wedge should be temperature tested on a small plastic sheet. During welding, the hot wedge should be placed between two plastic sheets and at a 30 degree angle to the plastic sheet below, preferably with the extruded plastic solution visible at the edge of the weld seam. When welding at the cross shaped intersection of the weld seam, the welding speed should be reduced and the solubility of the plastic plate should be strengthened. If there is any leakage or false welding in the weld seam, it should be repaired. If there is burning, welding penetration and exposed fixing points, they must be covered with plastic sheets for welding. When heating the wedge, the residual plastic solution on it should be brushed off. When stopping the welding operation, the power should be cut off in a timely manner. The strength of the weld seam shall not be less than 70% of the strength of the waterproof board itself, and the weld seam shall be tight and continuous. After welding is completed, the inflation method is used for testing, with an inflation pressure of 0.2 MPa. The pressure is maintained for no less than 3 minutes, and a pressure drop of 20% is allowed. If the pressure drops, the leaking part should be identified and manually repaired. After the waterproof board is laid, its surface should be inspected. If any damaged parts are found, they should be repaired by welding in a timely manner. The patches should be cut into rounded corners and there should be no triangular patches. The distance between the edge and the damaged edge should not be less than 7cm. The patches should be fully welded and there should be no curled or bulging parts. When laying waterproof boards, they should be handled as concealed works. Only after passing the acceptance inspection of the waterproof boards can the next construction process be carried out. Which is a good Hubei anti-seepage membrane crawling welding machine and Shandong Yantai aquaculture waterproof cloth welding machine

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