Application Of A New Large Caliber Winding PVC Pipe In Mine

The winding PVC pipe is a new way of producing the large caliber pipe. With this understanding, its application will be extended to mine by improving on the formula. This large caliber pipe has well airproof and mechanical capability so that it can be used in gas transmission. There are two facets during making these winding pipes. First of all, some winding boards which are extruded from die need preparing for manufacturing the pipe. Secondly, these boards turn to pipe by special winding equipment. Comparing with the direct extrusive process, it must not use the expensive die. What is more, winding pipe can be produced in the locale. This paper has concluded boards and winding equipment. The former adjusts the formula and structure of board. The latter describes the principle of winding equipment and designs its structure. The paper has completed some works as follows.The large caliber winding pipe's actuality and development are introduced. Several chapters account for the process of winding pipe and the application in usual condition.The colliery emphasizes twins resistances of material, such as antistatic capability and anti-combustibility. According to the MT558.2-1996, the tests prove whether the formula is right. Finally, the large caliber winding pipe's formula is obtained.The contrasts with other process help to improve on actual winding process so that the reasonable manufacture and structure of board are summed up.Structure of winding equipment is amended in virtue of former investigation. The drawings are protracted by computer.