| 摘要 |
PURPOSE: A mold for manufacturing a tube-shaped irregular structure core mold is provided to manufacture cores which uneven units are formed inside and outside and easily take out from the mold. CONSTITUTION: A mold for manufacturing a tube-shaped irregular structure core mold comprises a lower mold(110), an upper mold(120), a slide board(116), a permitting unit of elasticity force, first and second inner side molds(130,140), and an outside mold(150). The lower mold comprises a circular hole, and a first space part and a second space part. The circular hole is formed in upper side and lower surface having different diameters. The upper mold comprises a guide(122) in which first and second ribs(112a,112b) are formed by turns. |
