| 摘要 |
<p>A racket of a metal tube combined with fiber material includes a metal frame having a hollow interior and two free ends with sloped end surfaces respectively inserted in with an air-filling tube wrapped around with a carbon fiber layer of a preset thickness, forming a length-preset connecting portion in the metal frame. Then, this metal frame is put in a mold and air is compressed into the air-filling tubes to expand them and at the same time fill up the entire mold chamber and the connecting portion in the metal frame and subsequently thermally solidified in shape, thus obtaining a racket of a metal tube combined with fiber material, possible to reinforce its structure and reducing shock caused by striking balls.</p> |
