초록 ▼

A carbon-filament reinforced gear material of laminated structure has layers of carbon filaments. The gear material includes a plurality of circular fabrics each having warps and wefts composed of a plurality of carbon filaments. The circular fabrics are laminated one on another such that the carbon

A carbon-filament reinforced gear material of laminated structure has layers of carbon filaments. The gear material includes a plurality of circular fabrics each having warps and wefts composed of a plurality of carbon filaments. The circular fabrics are laminated one on another such that the carbon filaments of their warps and wefts are substantially equiangularly spaced from those of another fabric about a common axis. The fabrics thus laminated are bound into a unitary structure by means of a binding agent of a thermosetting resin. A method for preparing the carbon-filament reinforced gear material includes the step of loosening the woven fabrics, each of which has such warps and wefts as are composed of the carbon filaments bundled into strands by means of a binding agent, by brushing the plain weave fabrics while applying thereto a binding agent so that the filaments in each of the strands may be substantially equidistantly separated from one another to make thinner and finer fabrics. The fabrics thus loosened are then laminated one on another with the above-mentioned angular relationships. The fabrics are then subjected to heat and pressure so as to set the binding agent or agents thereby to prepare the desired gear material.

대표청구항 ▼

A method for preparing a carbon filament reinforced gear material of laminated structure having layers of carbon filaments, comprising the steps of: loosening the woven fabrics, each of which including warps and wefts being composed of multicarbon filaments bundled into strands by means of a first b

A method for preparing a carbon filament reinforced gear material of laminated structure having layers of carbon filaments, comprising the steps of: loosening the woven fabrics, each of which including warps and wefts being composed of multicarbon filaments bundled into strands by means of a first binding agent; brushing said woven fabrics in the lengthwise and cross-wise or oblique direction while applying thereto a second binding agent so that the filaments in each of the strands may be substantially equidistantly separated from one another to make thinner and finer fabrics, said warps and wefts of said woven fabrics being angularly spaced by approximately 90 degrees; laminating a first said woven fabric with a second said woven fabric wherein said second woven fabric being angularly shifted by approximately 45 degrees relative to said first woven fabric; laminating a third said woven fabric with said first and second said woven fabrics wherein said third woven fabric being angularly shifted by approximately 22.5 degrees relative to said first woven fabric; laminating at least a fourth said woven fabric with said first, second and third said woven fabrics wherein said fourth woven fabric being angularly shifted by approximately 67.5 degrees relative to said first woven fabric; repeating the laminating steps until the desired thickness of the gear material is obtained; and applying heat and pressure to the laminated fabrics so as to set the binding agents thereby to prepare the laminated gear material.