Method for making composite material club

Abstract

The present invention relates to a method for making composite material bat. Said method includes the following steps: firstly, using foaming material to prepare core material whose form is identical to that of bat and volume is smaller than that of said bat, then using tubular sleeve woven by composite material to cover the surface of the core material, and placing said core material covered with said tubular sleeve into a mould, evacuating said mould from its one end, heating said mould to make core material be expanded, at the same time making resin come into the interior of said mould and penetrate into said sleeve and said core material so as to obtain the bat finished product with the function of absorbing vibration.

Description

[technical field] [0001] The invention relates to a manufacturing method of a composite material ball bat. [Background technique] [0002] The growth of the economy has driven the development of industrial technology, and also increased the national income, making it possible to carry out various leisure activities in addition to food and clothing. Among them, baseball has won glory in international competitions in the early three-level baseball, plus The development of professional baseball has attracted more Chinese people to participate in baseball. For baseball games, in addition to having excellent equipment to reduce turnover rates and lose points, if you want to win the game, you still have to score points by hitting. Therefore, the power hitter has always been the team's reliance on scoring. [0003] As for the strikes of the players on the field, not only good strike skills are needed, but also better bats are needed to cooperate, so that the players' strikes can e...

AI Technical Summary

Problems solved by technology

[0003] As for the strikes of the players on the field, not only good strike skills are needed, but also better bats are needed to cooperate, so that the players' strikes can exert the highest effect. Aluminum alloy and fiber are produced. Among them, the bats made of fiber materials are not popular with the majority of players because the bats made do not meet the requirements in terms of strength and elasticity. However, carbon fiber, glass fiber, boron fiber ... and other fiber materials all have fairly good strength, but why the bats produced cannot meet the ideal requirements, it can be seen that it is due to the factors of manufacturing technology, and the manufacturing methods of conventional bats, such as figure 1 As shown, the core tube 1 of a metal material is wound with a fiber strip 2 of a single fiber material or a composite fiber material, and then it is placed in a mold to be heated and pressurized to form a preform, and then as shown in FIG. figure 2 As shown, after the core tube 1 is taken out first, the sealing process of the head 21 and the tail 22 is carried out on the formed embryo stick, and finally the follow-up modification processing such as grinding and painting is carried out to complete the finished bat. Although the bat made by the method can obtain high-strength characteristics, the elasticity is relatively insufficient, resulting in a reduction in striking power, and because it is formed by winding the fiber tape 2, after a period of striking, due to the higher factor of hardness, The inside of the bat is prone to the problem of fiber peeling due to the vibration force of hitting the ball, which will cause abnormal sound when hitting, and the vibration force is likely to cause sports injuries under insufficient elasticity and strong swing. In addition, after the embryo stick is formed It is also necessary to carry out the processing steps of the head and the tail, resulting in an increase in the processing procedures, and it is necessary to improve it.

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