Views: 0 Author: Site Editor Publish Time: 2021-12-17 Origin: Site
At present, the electrofusion welding machine for pipe fittings is mainly used for the electrofusion welding of pressure PE and PP pipes, while the electrofusion welding machine is mainly used for the electrofusion welding of non-pressure PE and PP straight or corrugated pipes.
What is the working principle of the electrofusion welding machine?
How to judge the current of the electrofusion welding machine?
What are the future developments of electrofusion welding machine?
When the electrofusion welding machine is working, the electric fusion connection needs a special electric fusion casing, and the casing is energized and heated by the electrofusion welding machine to complete the welding; the thermal fusion connection generally refers to the fusion butt welding, which is an electrofusion welding machine. In the middle of the pipeline, a hot plate is used to heat the pipe port to complete the welding; there is also a hot-melt socket welding, which uses a hot melt device (PPR welding machine, socket welding machine) to special pipe sleeves and Welding method in which the pipe is heated at the same time and then socketed.
When the welding current of the electrofusion welding machine is high, it will make a "swooshing" sound, just like the water of a big river; when the welding current is small, it will make a "sand" sound with a crisp crackling sound.
When the welding current is too large, the arc blowing force is large, the molten liquid with larger particles splashes out of the molten pool, and the cracking sound is loud during welding, and the surface of the weldment is not clean; the welding current is too small, the welding rod melts slowly, and the arc The blowing force is small, and it is difficult to separate the slag and the molten liquid.
When the welding current of the electrofusion welding machine is too high, redness can be found in the remaining part after the electrode is continuously melted by more than half of the electrode. If the welding current of the electrofusion welding machine is too small, the arc combustion is unstable and the electrode is easy to stick to the weldment.
When the current of the electrofusion welding machine is large, the long axis of the elliptical molten pool is longer; when the welding current is small, the molten pool is flat; when the welding current is moderate, the shape of the molten pool is like a duck egg.
When the electrofusion welding machine current is too high, the weld metal melt is low, the penetration depth is large, and it is easy to produce undercut; the electrofusion welding machine current is too small, the weld metal melt is narrow and high, and the two sides are poorly bonded to the base metal; When the current is moderate, the weld metal has a moderate height, and the weld metal has a good combination with the base metal on both sides.
With the increasing competition in the market, the survival of the fittest and the survival of the fittest will become an inevitable trend in the structural adjustment of the electrofusion welding machine industry. Some electrofusion welding machine companies have grown stronger in the competition, and even developed into large groups; some companies will face bankruptcy, or be merged or acquired, thereby exiting the welding machine industry. But whether it is from the current development trend of electrofusion welding machine output composition or from the technical development direction of electrofusion welding machine, electrofusion welding machine will develop in terms of high efficiency, energy saving, mechatronics and complete sets in the future.
WELPING Co., Ltd. takes "customer needs-oriented" as the company's eternal business philosophy, and constantly explores and expands the application potential and application industries of welding machine technology. Therefore, when choosing to order a electrofusion welding machine, you can choose WELPING Co., Ltd.
