Title:
MOLD FOR MOLDING AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2023029111
Kind Code:
A
Abstract:
To prevent deformation of a shell mold by backing up the shell mold sufficiently with a backup mold, and to increase vacuum suction efficiency by connecting all vacuum suction holes in the shell mold to a ventilation groove.SOLUTION: A mold for molding includes a shell mold with a plurality of vacuum suction holes 5 and a backup mold. A back surface of a shell body part 3 and a surface of a backup body part 11 are identically shaped and mated. A vent groove 13 is formed on a surface of the backup body part 11 or a back surface of the shell body part 3, leaving a receiving surface 14 to receive a mating surface. On a back surface of the shell body part 3 or a surface of the backup body part 11, a plurality of striations 6 with a feed pitch of 0.5 to 5.0 mm and a machining depth of 0.01 to 0.4 mm and a protrusion 7 between the striations are formed. The vacuum suction hole 5 and the vent groove 13 are connected through the striations 6.SELECTED DRAWING: Figure 7
Inventors:
SATO KATSUYA
Application Number:
JP2021135221A
Publication Date:
March 03, 2023
Filing Date:
August 20, 2021
Export Citation:
Assignee:
KTX CORP
International Classes:
B29C51/36; B29C33/10; B29C33/38
Attorney, Agent or Firm:
Matsubara etc.