Glass fiber reinforced plastic helmet shell and fabrication technique thereof

Abstract

The invention relates to a glass fiber reinforced plastic helmet shell and a fabrication technique thereof, and the helmet shell is a composite-structured helmet shell with a plastic shell attached on the outer surface of a base shell. In the fabrication method, the base shell of the helmet shell is made of fiber-reinforced plastic, the plastic shell is made of polyvinyl chloride plastic, polycarbonate plastic, polydiphenyl ether plastics, polyethylene plastic or other material, and the fabrication method is carried out according to a certain sequence, such as placing the plastic shell in a mold cavity, laying a fiber layer, coating resin, closing a mold, increasing the temperature and the pressure, and taking out the helmet shell after the pressure is kept for a period of time. The glass fiber reinforced plastic helmet fabricated according to the method has a composite structure, that is, the plastic shell is attached on the outer surface of the base shell, so the outer surface of the helmet shell becomes bright, clean, smooth and compact, consequently, the invention solves the defects of the shell directly made of glass fiber reinforced plastic, such as poor air tightness and poor anti-seepage property, processes, such as deburring, air bubble carving, gray filling and polishing, can be dispensed with, so that a great deal of manpower and a large quantity of material resources are saved, and the product quality and production efficiency of the helmet are increased.

Description

technical field [0001] The invention relates to a glass steel helmet shell and a manufacturing process thereof, in particular to a glass steel helmet shell and a manufacturing process thereof for people to wear on the head. Background technique [0002] Racing and motorcycle drivers must wear helmets to protect their heads, and the performance of helmets depends largely on the structure, material and manufacturing process of their shells. In order to enhance the strength of the helmet, a kind of reinforced plastic with glass fiber or its products as the reinforcing material is widely used to make the helmet shell of the helmet, that is, the material of the main body of the helmet shell is unsaturated polyester, epoxy resin reinforced by glass fiber. Glass fiber reinforced plastics obtained from resin or phenolic resin and other matrix, this kind of helmet shell is commonly known as glass steel helmet shell, it has many advantages such as high strength, impact resistance, co...

AI Technical Summary

Problems solved by technology

As we all know, there are many deficiencies in the shell made of FRP, mainly in that the outer surface of the shell is not smooth enough, and it is difficult to avoid defects such as air bubbles, air holes, collapse, snagging, collapse and looseness. , the mold for producing the shell will also leave defects such as flashes on the shell due to the parting structure, which not only adversely affects the airtightness and impermeability of the helmet, but also affects the post-processing of the helmet such as painting Therefore, the shells of the existing FRP helmets without exception need to go through the processes of deburring, engraving air bubbles, filling dust and polishing, and then can be followed by painting, baking and decals. process

It should be pointed out that the above process is often repeated many times, which requires a lot of manpower and material resources

Even so, the quality of glass steel helmet shells produced according to traditional structures and traditional techniques is still extremely unstable.

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