| 摘要 |
PURPOSE:To increase shearing strength and bending strength, by a method wherein powerful line is densely wound around a cylinder surface in a laminar manner in a way that it is obliquely extended alternately in a reverse direction on each layer, and is cured to form a cylindrical part. CONSTITUTION:Alamide line 2 wound around a drum 1 is densely wound in a laminar manner around a driving rotary shaft 3 from the given one end position toward the other end position in a condition to hold a specified angle thetawith the axis of the rotary shaft as proper tension is exerted on the line. A second layer is formed such that the line is wound in succession to a first layer by reversing the above procedures and turning the angle theta to a reverse direction, and through repetition of the alternating motion, the line is continuously wound up to a given diameter. During winding, after the alamide line 2 passes through heated and molten resin 4, the line is wound for curing. After curing, the rotary shaft 3 is removed to produce a cylinder material 6. |
