发明名称 |
MOLD FOR MOLDING SYNTHETIC RESIN, MOLD TEMPERATURE REGULATING DEVICE, AND METHOD FOR REGULATING MOLD TEMPERATURE |
摘要 |
PROBLEM TO BE SOLVED: To perform heating and cooling of a mold in a short time by providing a gap for an estimated expansion of an insert in the fitted part between the insert and a matrix, in the mold which has the insert in the matrix and a heat insulating layer between the matrix and the insert with a flow path formed near the surface of a cavity in the insert. SOLUTION: The mold to be used for injection-molding or compression- molding a thermoplastic resin, a heat-curable resin or the like has an insert 2 provided in a matrix 1, a cavity 3 being formed in the insert 2. In this case, a gap t1 for an estimated expansion of the insert 2 is provided in the fitted part between the insert 2 and the matrix 1, and is set so that the thermal stress to be generated during the expansion of the insert 2 is 100 MPa or less, preferably 50 MPa or less. Further, a fitted part with a smaller gap t2 which is smaller than the gap t1 is provided in the fitted part between the insert 2 and the matrix 1. The gap t2 is set within the range of 30μm or less, preferably 20μm or less and further preferably 10-1μm.
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申请公布号 |
JP2001018229(A) |
申请公布日期 |
2001.01.23 |
申请号 |
JP19990375069 |
申请日期 |
1999.12.28 |
申请人 |
ONO SANGYO KK;MITSUI CHEMICALS INC |
发明人 |
SATO YOSHIHISA;YAMAKI MASAHIKO;NUNOME MASAYUKI;IMAGAWA AKIHIKO;TAKAMURA MASATAKA;SHINDO KAZUMI |
分类号 |
B29C33/04;B29C33/38;B29C43/20;B29C45/16;B29C45/73;(IPC1-7):B29C33/04 |
主分类号 |
B29C33/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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