| 摘要 |
PURPOSE:To enable the transferring property of a hollow molded object to be numerically estimated by providing the transfer-standard pattern composed of a plurality of grooves with different depth and width in a mold cavity which achieves hollow molding. CONSTITUTION:A transfer-standard pattern 2 is formed on the part or the whole of the mold of a hollow-molding machine. Said standard pattern 2 is composed of a plurality of grooves 3 so formed that widths w1-w6 are made in order from a large width to small width. The angle theta of the aperture of each groove 3 is formed into any one angle in the angles of 60-90 deg., and the depth of each groove is formed into different depth. The direction of each groove 3 is formed along a longitudinal line, transverse line and cross line. The standard pattern 2 is formed into the plate different from the mold 2, and it may be fitted to the mold 1. If the number of the grooves 3 of said standard pattern 2 is N, and the number of the lines transferred on the hollow molded object is n, the transferring property may be estimated by (n/N)X100%. |
