Geotextile welding temperature is controlled between 300-360℃

When the electric heating pipe welding method is welded, the welding machine automatically crawls along the surface of the lap joint, and the electric heating pipe melts the upper film and the lower film pad on the lapped geotextile, and the roller is extruded, and the two films are fused together. This welding method can be used for single or double seam welding. Single-slot welding uses a single-piece heat exchanger and a drum welder, and double-slot welding uses a two-piece heat exchanger and a double-drum welder. TH-2 type ground film welding machine is suitable for double welding, welding width 35mm, single welding standard width 12mm, welding section.

Before the geotextile is welded, the geotextile is cut, aligned, cleaned (wiped dust) and tested before welding. Welding with TH-2 type ground film welding machine。

35mm, single solder joint width l Omm. After the welding was completed, it was solidified by cooling for 20 minutes. Both ends of the weld are blocked with a dsh-ii plastic welding torch, and the inflation test needle is used for inflation detection.

A total of 4 sets of welding tests were carried out, and the speed of the welding machine was 2.1, 2.5, 3. 0, 3. 2 m / min. The soldering temperature is 300, 3600c. Ambient temperature 24 ° C - 270 c, DEM6 portable three-cup anemometer, control wind speed <2m / s, welding pressure can not be displayed, no adjustment. The working conditions of the weld and the welder under the above environmental conditions were tested by aeration method, and the test results were all qualified. According to the construction site situation and other factors, it is recommended to control at 2.0}3. When the wind speed is less than 2m/s and the ambient temperature is between 24 and 300 °C, the welding temperature is between 300 and 360 °C.