Title:
INJECTION MOLD
Document Type and Number:
Japanese Patent JP3405598
Kind Code:
B2
Abstract:
PURPOSE: To prevent the generation of burr and a flow mark in a molded object by forming at least the tip part of a nozzle from Al2O3-TiC type ceramics.
CONSTITUTION: An injection mold 5 consists of a plurality of the recessed molds 6 carved in the surface of a block body and the nozzles equipped with jet orifices 1a communicating with the recessed molds. The whole of these nozzles 1 is formed from Al2O3-TiC type ceramics excellent in abrasion resistance and having conductivity and a nozzle groove consisting of a deep pot part 1c and the shallow runner part 1b communicating with the pot part 1c is formed to each of the nozzles. A molding material is once stored in the pot part 1c of each nozzle 1 and injected from the jet orifice 1a while the injection amt. thereof is adjusted by the runner part 1b. Therefore, the molding material can be efficiently injected.
Inventors:
Katsushibu Ishioka
Application Number:
JP15084594A
Publication Date:
May 12, 2003
Filing Date:
July 01, 1994
Export Citation:
Assignee:
Kyocera Corporation
International Classes:
B29C45/26; B29C45/20; B29C45/27; B29K103/04; (IPC1-7): B29C45/26
Domestic Patent References:
| JP5319910A | ||||
| JP4114955A | ||||
| JP5194022A | ||||
| JP4127648U | ||||
| JP248304U |
Previous Patent: RESIDUE REMOVER FOR CANDLESTICK
Next Patent: SETTING METHOD/DEVICE FOR COMMUNITY BROADCAST CHANNEL
Next Patent: SETTING METHOD/DEVICE FOR COMMUNITY BROADCAST CHANNEL