Production process of high-temperature-resistant porous isolating membrane

Abstract

The invention relates to a production process of a high-temperature-resistant porous isolating membrane,. The production process comprises the following steps: 1. an extrusion process: extruding a high-temperature-resistant porous isolating membrane by an extruder, wherein the high-temperature-resistant porous isolating membrane extruded in the extrusion process comprises three layers of structures that are arranged from top to bottom and have the same structures, the content of an antioxidant in any layer is less than or equal to 1%, the content of a lubricant is less than or equal to 1%, thecontent of a forming agent is less than or equal to 1%, the content of HDPE is greater than or equal to 95% and the content of kaolin is greater than or equal to 3%; 2, a membrane blowing process; 3,a rolling process, wherein the rolling process comprises the following steps: a) mounting a new wind-up roll to be rolled; b) moving out an old wind-up roll which completes the wind-up work; c) membrane cutting and separation; d) carrying out automatically rolling by the new wind-up roll; and e) manually replacing the wind-up roll, and rotating the wind-up roll to a transmission station. The production process solves the technical problems that the working efficiency is low after the wind-up work is completed each time as a machine is needed be stopped for replacing the wind-up roll, and theservice life of the wind-up roll will be shortened due to long-term disassembly of the wind-up roll.

Description

technical field [0001] The invention relates to the technical field of porous isolation membranes, in particular to a production process for high-temperature resistant porous isolation membranes. Background technique [0002] The air-permeable isolation film has air permeability, high temperature resistance and isolation, and is mainly used for vacuum infusion molding of wind power, yachts, aircraft seats, etc. During the production and processing of existing films, the film reel is often fixedly connected with the take-up shaft Just install the winding operation. After a winding operation is completed, the film reel needs to be disassembled from the rotating frame and replaced with a new film reel for rewinding. However, due to the complicated connection structure between the film reel and the frame, the It is very troublesome to disassemble and replace the film roll, which affects the processing efficiency. Therefore, we design a winding mechanism for film processing. [...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies of the prior art. By setting the switching mechanism to cooperate with the pressing mechanism, when the switching mechanism replaces the old and new winding rollers, the pressing mechanism is used to compress the porous isolation film under the traction. On the one hand, the tightening state is maintained between the pressing mechanism and the old winding roller, which is beneficial to the cutting component to cut the porous isolation film; on the other hand, the porous isolation film on the other end of the pressing mechanism The bulge occurs in the middle, which is beneficial to the effective superimposition of the raised part of the porous separator and the fastening groove of the new winding roller, so as to cooperate with the usual clamping of the raised part of the porous separator by the compensation component to realize the active winding of the porous separator work, thus solving the technical problem that it is necessary to stop the machine to replace the winding roller every time the winding work is completed, the work efficiency is low, and the long-term disassembly of the winding roller will reduce the service life of the winding roller

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