Protective cover of lifesaving raft special for large ship seagoing tanker and manufacturing method thereof

Abstract

The invention relates to a protective cover of a lifesaving raft special for a large ship seagoing tanker. The protective cover is mainly composed of a resin layer, wherein a first alkali-free glass fibre chopped felt layer, an alkali-free glass fibre sandwich compound felt layer and a second alkali-free glass fibre chopped felt layer are arranged at the bottom of the resin from bottom to top. The protective cover of the lifesaving raft special for the large ship seagoing tanker, disclosed by the invention, has the advantages that the service life is long; on the premise of not reducing the mechanical property, the excellent anti-corrosive property, electrical insulating property and heat insulation property are provided; the weight is reduced, so that the large ship seagoing tanker accords with future design concepts of light weight and low energy consumption; due to the electrical insulating property, the lightning phenomenon possibly appearing in the marine navigation is completely eradicated; due to the heat insulation property, the aging rate of lifesaving equipment in the protective cover is reduced; by adopting a light resin transfer moulding forming process (RTM-LIGHT) and a silicon soft membrane technology, the production quality and the production efficiency are improved; the production cost is reduced; the resin utilization rate is above 95%; the rejection rate is low; the size precision is high; and the batch quality is steady.

Description

Technical field [0001] The invention relates to the field of large-scale ocean-going oil tankers. Oil and gas is a special liferaft shield for large-scale ocean-going oil tankers and a manufacturing method thereof. Background technique [0002] Glass fiber reinforced composite materials, commonly known as "Glass Reinforced Plastics" (FRP), also known as GRP, namely fiber reinforced plastics, generally refers to the use of glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin matrix. Due to the different types of resins used, it is called polyester fiberglass, epoxy fiberglass, and phenolic fiberglass. Light and hard, the quality is one-fifth of metal, non-conductive, high mechanical strength, corrosion resistance, heat insulation, easy to process and shape. Because of its unique performance advantages, FRP materials have been widely used in more than a dozen related industries such as aerospace, railways, decorative buildings, home furniture, advertising d...

AI Technical Summary

Problems solved by technology

The life raft shields in the field of marine engineering are traditionally made of ordinary steel and aluminum alloys. Since the shields are placed outside the ship for a long time, the harsh marine environment brings high salt spray, strong corrosion environment, High ultraviolet radiation, high temperature and low temperature changes, and long-term wind and rain have great deficiencies in corrosion resistance, corrosion resistance, and lightning strike resistance, and high maintenance costs

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