| 摘要 |
PROBLEM TO BE SOLVED: To provide a blow mold which holds the durability and releasability of a mold surface and has excellent productivity, and also a manufacturing method of the blow mold excellent in operability and frictional resistance. SOLUTION: The blow mold 10, which forms a hollow bottle by blowing compressed air into a preform P of a polyethylene terephthalate resin or the like held inside, is equipped with a pair of right and left split molds 11 and 11a holding the preform P, a panel tool 12 which is formed in projection into the split molds 11 and 11a and which is disposed to be fittable to and removable from the split molds 11 and 11a through a fixing member 12a and constituted of an aluminum alloy or the like, and an easy release layer 13 which is disposed on a preform contact face of the panel tool 12 and formed by a blast treatment, a specular finish treatment and a hard plating treatment. COPYRIGHT: (C)2005,JPO&NCIPI |
