Repair process and application of a composite fiber equipment

Abstract

The disclosure belongs to the technical field of repairing composite fiber materials, and in particular relates to a repairing process and application of composite fiber equipment. Composite FRP is added with PVC lining, and its corrosion resistance and strength are further improved compared with traditional FRP materials. It has a wide range of applications in the chlor-alkali industry. However, when the temperature difference changes significantly, the difference in the expansion properties of PVC and glass will lead to cracking and damage to the PVC lining. The present disclosure provides a repair process suitable for the composite fiber material, using soft PVC as the repair material to cover the damaged part, and welding the soft material to the inner lining surface by welding. This method changes the single expansion performance and difficult-to-process defects of the hard PVC lining, uses soft PVC, and improves the expansion performance of the lining by reserving the expansion amount, so that the main part can be synchronized with the outer reinforcement layer to avoid The lining is cracked to enhance the temperature change resistance of the composite fiber equipment and prolong the service life.

Description

technical field [0001] The disclosure belongs to the technical field of repairing composite fiber materials, and in particular relates to a repairing process and application of composite fiber equipment. Background technique [0002] The information disclosed in this Background section is only intended to increase the understanding of the general background of the disclosure, and is not necessarily to be taken as an acknowledgment or any form of suggestion that the information constitutes prior art that is already known to those skilled in the art. [0003] Glass fiber reinforced plastic, commonly known as FRP, has many advantages such as light weight, high strength, anti-corrosion, heat preservation, insulation, and sound insulation. FRP products are widely used and are an ideal material that can replace some metals and plastics. FRP products have good corrosion resistance, and have good resistance to the atmosphere, water, and general concentrations of acids, alkalis, sal...

AI Technical Summary

Problems solved by technology

However, due to the difference in the expansion coefficients of PVC and FRP, when the idle equipment has a large temperature difference between the inside and outside and the temperature changes greatly, PVC stress damage is prone to occur, resulting in equipment leakage

In this field, gluing is usually used to repair the damaged part. The strength of the material after gluing cannot meet the production requirements, and the solvent in the chlor-alkali industry also has a corrosive effect on the gluing, which will cause repeated damage.