| 摘要 |
PURPOSE:To reduce anisotropy of strength caused by orientation of a reinforcing material, to improve strength as a whole, to change the position of a weld line at every feeding of a molding material and to reduce decrease in strength caused by the weld line by changing a feeding position of the molding material. CONSTITUTION:A molded item 1 prepd. by injection molding or transfer molding consists of a part 11 molded by the first feeding of the molding material and the second molded part 12. Each weld line produced on each molding on the first feeding position 21 of the molding material and the second feeding position 22 of the molding material crosses in the thickness direction at the first time 111 and the second time 121 to reduce decrease in strength of the weld line. In addition, as the flow direction of the molding material in a mold differs at the first time and the second time, orientation of a reinforcing material correspondingly differs to reduce anisotropy of the strength. |
