How to identify plastic bellows for telescopic welded bellow

Writer： admin Time：2021-09-08 21:55 Browse：℃

How to identify plastic bellows for telescopic welded bellows First of all, there are two types of plastic bellows. One is that it is continuously wound with tape, which can be used to protect cables, and the other is that it is completely watertight and airtight, and is used in water heaters and gas. Secondly, if classified according to the forming process, it is divided into hydroforming bellows, roll forming bellows, deposition forming bellows, and mechanical bulging bellows. One of the commonly used forming methods is the hydroforming corrugated tube, which uses the pressure in the first tube blank to confine it in the ring, thereby bulging and yielding along the ring direction. Under normal circumstances, small diameter corrugated tubes will use this Kind of method. If you distinguish plastic corrugated pipes according to the number of layers, there are also two types, namely multi-layer corrugated pipes and single-layer corrugated pipes. The so-called multi-layer corrugated pipes are very important pipelines, and most of them will choose more than two layers of multi-layer corrugated pipes. The tube has strong bearing capacity and excellent fatigue resistance. The single-layer corrugated pipe is a corrugated pipe that compensates for displacement under static load. Its cost is very low and its production is relatively simple. Therefore, different plastic corrugated pipes have different functions. When you choose, you must be based on Careful comparison in many aspects can identify the better bellows.