JPS54144459A - Production of resin sheets with mirror surface and device therefor - Google Patents

Production of resin sheets with mirror surface and device therefor

Info

Publication number
JPS54144459A
JPS54144459A JP5334678A JP5334678A JPS54144459A JP S54144459 A JPS54144459 A JP S54144459A JP 5334678 A JP5334678 A JP 5334678A JP 5334678 A JP5334678 A JP 5334678A JP S54144459 A JPS54144459 A JP S54144459A
Authority
JP
Japan
Prior art keywords
disk
mirror surface
heated
glass
production
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP5334678A
Other languages
Japanese (ja)
Inventor
Masami Uchida
Yoichi Saito
Yasuhiko Tanigawa
Nobuo Akahira
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP5334678A priority Critical patent/JPS54144459A/en
Publication of JPS54144459A publication Critical patent/JPS54144459A/en
Pending legal-status Critical Current

Links

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: A disk of resin is put between disks for pressing with excellent mirror surface, e.g., made of glass, heated up to the softening point and pressed to produce a resin plate with excellent mirror surface.
CONSTITUTION: Disk 3 is put between plates of glass 4, 5 and further these glass plates are laid between upper and lower molds with good flatness 1, 2. The upper mold 1 is fixed through compression coil spring 8 and washer 7 with screw 6 to the inside of evacuator 9. The vessel 19 is evacuated to exclude the air between disk 3 and glass plates 4, 5. Then the whole vessel 19 is heated in an air-circulating oven to the softening point of disk 3. The heated evacuator 9 is pressed with a hydraulic press in the directions of arrows 20, 21, then the pressing is discontinued, then the disk 3 is cooled and taken out by releasing the press.
COPYRIGHT: (C)1979,JPO&Japio
JP5334678A 1978-05-04 1978-05-04 Production of resin sheets with mirror surface and device therefor Pending JPS54144459A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5334678A JPS54144459A (en) 1978-05-04 1978-05-04 Production of resin sheets with mirror surface and device therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5334678A JPS54144459A (en) 1978-05-04 1978-05-04 Production of resin sheets with mirror surface and device therefor

Publications (1)

Publication Number Publication Date
JPS54144459A true JPS54144459A (en) 1979-11-10

Family

ID=12940203

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5334678A Pending JPS54144459A (en) 1978-05-04 1978-05-04 Production of resin sheets with mirror surface and device therefor

Country Status (1)

Country Link
JP (1) JPS54144459A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59122211U (en) * 1983-02-03 1984-08-17 エヌオーケー株式会社 Molding equipment
JPS606903A (en) * 1983-06-20 1985-01-14 Hoya Corp Reflection mirror and its manufacture
JPS61242815A (en) * 1985-04-22 1986-10-29 Victor Co Of Japan Ltd Manufacture of information signal recording medium and its device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59122211U (en) * 1983-02-03 1984-08-17 エヌオーケー株式会社 Molding equipment
JPS606903A (en) * 1983-06-20 1985-01-14 Hoya Corp Reflection mirror and its manufacture
JPS61242815A (en) * 1985-04-22 1986-10-29 Victor Co Of Japan Ltd Manufacture of information signal recording medium and its device

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