Title:
DEVICE FOR FORMING DISC
Document Type and Number:
Japanese Patent JPS5594796
Kind Code:
A
Abstract:
A device for making discs, comprising a press which includes at least one hydraulic pressure chamber, one wall of which is formed during operation by a flexible, thermally conductive plate which can be pressed against a thermoplastic substrate. The device comprises a first system of ducts which includes a pump whereby a hot liquid can be supplied to and discharged from the pressure chamber, and a second system of ducts which includes a pump whereby cold liquid can be supplied to the pressure chamber. The liquid in the systems of ducts and the pressure chamber is pressurized by means of an expansion vessel, the liquid part of which communicates with the pressure chamber as well as with both systems of ducts, its gas part communicating with a pressure control device.
Inventors:
PEETAA REENDERUTO HORUSUTAA
ADAMU OOMUSU
ADAMU OOMUSU
Application Number:
JP16577379A
Publication Date:
July 18, 1980
Filing Date:
December 21, 1979
Export Citation:
Assignee:
PHILIPS NV
International Classes:
B29C33/00; B29C33/04; B29C35/00; B29C43/00; B29C43/02; G11B3/70; B29C43/10; B29C43/12; B29C43/32; B29C43/36; B29C43/52; B29C43/58; B29C61/00; B29D17/00; B30B5/02; B30B9/00; B30B15/22; B30B15/34; F15B1/02; B29C35/04; B29C35/16; (IPC1-7): B29C3/00; B29D17/00; B30B5/02; B30B9/00; B30B15/22; B30B15/34; G11B3/68