| 摘要 |
<p>The weight has an oscillating sector (1), and a hub provided with a cylindrical bore (4), where the weight is formed by molding a plastic material charged with heavy metal particles and fibers. The fibers are formed between 2 and 3.5 percentages of total weight of the charged material, where density of the charged material is greater than 8. The heavy metal is tungsten. The plastic material is polyamide-12. The fibers are glass fibers and carbon fibers. The plastic material, heavy metal and the fibers form a mixture that is made by mixing Grilamid-TR(RTM: high-performance polyamides) and Gravi-Tech(RTM: polymer-metal composites) fibers.</p> |
