JPS5514236A - Method of producing insulation board - Google Patents

Method of producing insulation board

Info

Publication number
JPS5514236A
JPS5514236A JP8660878A JP8660878A JPS5514236A JP S5514236 A JPS5514236 A JP S5514236A JP 8660878 A JP8660878 A JP 8660878A JP 8660878 A JP8660878 A JP 8660878A JP S5514236 A JPS5514236 A JP S5514236A
Authority
JP
Japan
Prior art keywords
resin
central portion
conveyer
channel
shrinkage
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.)
Granted
Application number
JP8660878A
Other languages
Japanese (ja)
Other versions
JPS6235890B2 (en
Inventor
Ryoichi Matsushima
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP8660878A priority Critical patent/JPS5514236A/en
Publication of JPS5514236A publication Critical patent/JPS5514236A/en
Publication of JPS6235890B2 publication Critical patent/JPS6235890B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To obtain a flat and wide insulation board by injecting an expandable resin composition into the groove of a channel material and by eliminating a concave warp due to the shrinkage through the foaming and curing of the central portion of the board in a curved condition. CONSTITUTION:A rib 6 comprising a channel form of polyvinly chloride and the like is place on the lower conveyer 5 of a double conveyer device 4 having an apper and a lower belts. Injecting an expandable urethane resin 8 or the like into the channel from an injection unit 7, the rib is carried through the conveyer 4 for the expansion and curing of the resin. A metal mold made up of the upper and lower caterpillars 10, 11, are prepared on the conveying portions of the upper and lower conveyers 9,5, besides a concave being formed in the central portion of the upper caterpillar 10 and a convex formed in the central portion of the lower caterpillar 11. Thefefore, the resin 8 is allowed to be expanded and cured in a curved condition. After cooling at ordinary temperature, a flat and non-warp sheet can be obtained due to the shrinkage of the resin 8.
JP8660878A 1978-07-14 1978-07-14 Method of producing insulation board Granted JPS5514236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8660878A JPS5514236A (en) 1978-07-14 1978-07-14 Method of producing insulation board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8660878A JPS5514236A (en) 1978-07-14 1978-07-14 Method of producing insulation board

Publications (2)

Publication Number Publication Date
JPS5514236A true JPS5514236A (en) 1980-01-31
JPS6235890B2 JPS6235890B2 (en) 1987-08-04

Family

ID=13891719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8660878A Granted JPS5514236A (en) 1978-07-14 1978-07-14 Method of producing insulation board

Country Status (1)

Country Link
JP (1) JPS5514236A (en)

Also Published As

Publication number Publication date
JPS6235890B2 (en) 1987-08-04

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