| 摘要 |
PURPOSE:To obtain the title molded material which is superior in durability such as fatigue resistance characteristics, by a method wherein a thread is formed through rolling process by controlling a thread forming sphere of a molding material made of thermoplastic resin, in which reinforcing fiber has been made to disperse, and a rolling die at a specific temperature. CONSTITUTION:Thermoplastic resin such as polyamide resin and reinforcing fiber such as glass fiber are melted and mixed by an extrusion molding machine with each other, and a molding material to be obtained by making the foregoing reinforced fiber disperse uniformly within the thermopolastic resin is formed. Then the target molded material is obtained by forming a thread by applying rolling process to a thread forming sphere of a surface layer part of a molding material after more than a part of the thread forming sphere of the surface layer part of the molding material has been heated at the temperature of more than the fusion point of the foregoing thermoplastic resin and a rolling die has been controlled to the temperature of less than the fusion point of the thermoplastic resin. |
