Effect of Temperature and Pressure on the Weldability of Polyethylene Pipe for the Supply of Gaseous Fuels

온도와 압력이 가스용 폴리에틸렌관의 용접성에 미치는 영향에 관한 연구

The welding characteristics of polyethylene pipe for gas varying temperature and pressure is analyzed in this study. The analysis is very important to studying the weldability of PE pipe as well as is useful for its welding data. The specimens have the same welding conditions. Experimental data of the bead width, height and thickness for PE welding are measured with tool projector, Experimental results for PE welding Indicated that temperature more than pressure have influence on the weldability. It was confirmed that optimal PE welding within the limits of $210^{\circ}C$ and 15kg/$cm^2$ have high welding performance in comparison with other conditions. These results are very important to improve the safety and to reliable welding components of PE gas pipe.