FI864120A - FOERFARANDE OCH ANORDNING FOER FRAMSTAELLNING AV EN KORRUGERAD SKIVA. - Google Patents

FOERFARANDE OCH ANORDNING FOER FRAMSTAELLNING AV EN KORRUGERAD SKIVA. Download PDF

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Publication number
FI864120A
FI864120A FI864120A FI864120A FI864120A FI 864120 A FI864120 A FI 864120A FI 864120 A FI864120 A FI 864120A FI 864120 A FI864120 A FI 864120A FI 864120 A FI864120 A FI 864120A
Authority
FI
Finland
Prior art keywords
corrugated
mat
order
board units
korrugerad
Prior art date
Application number
FI864120A
Other languages
Finnish (fi)
Other versions
FI864120A0 (en
FI86269B (en
FI86269C (en
Inventor
Lars Bach
Original Assignee
United Kingdom Government
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 United Kingdom Government filed Critical United Kingdom Government
Priority to FI864120A priority Critical patent/FI86269C/en
Publication of FI864120A0 publication Critical patent/FI864120A0/en
Publication of FI864120A publication Critical patent/FI864120A/en
Publication of FI86269B publication Critical patent/FI86269B/en
Application granted granted Critical
Publication of FI86269C publication Critical patent/FI86269C/en

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  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

The invention relates to a method and an arrangement for the manufacture of a corrugated fibreboard. In the earlier manufacturing processes the density of the manufactured fibreboard was uneven. In order to keep the density constant, the method according to the invention makes use of a board unit 1, which has a working surface, which can be mechanically converted between flat and corrugated form. A mat 27 of wood chips, which has been coated with a thermosetting resin binder, is placed between spaced upper and lower board units 1 of this type. The board units 1 in a flat condition are then compressed to a limited degree for compression of the mat 27 in order to fix the chips. A horizontal force is then applied to the board units 1 in order to transform these into a corrugated configuration whilst the mat 27 remains between them. The mat 27 is thereby forced to assume the corrugated shape. The board units 1 are then compressed further and heated in order to harden the resin and to produce a corrugated chipboard. <IMAGE>
FI864120A 1986-10-13 1986-10-13 Method and apparatus for making a corrugated disc FI86269C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI864120A FI86269C (en) 1986-10-13 1986-10-13 Method and apparatus for making a corrugated disc

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI864120A FI86269C (en) 1986-10-13 1986-10-13 Method and apparatus for making a corrugated disc
FI864120 1986-10-13

Publications (4)

Publication Number Publication Date
FI864120A0 FI864120A0 (en) 1986-10-13
FI864120A true FI864120A (en) 1988-04-14
FI86269B FI86269B (en) 1992-04-30
FI86269C FI86269C (en) 1992-08-10

Family

ID=8523300

Family Applications (1)

Application Number Title Priority Date Filing Date
FI864120A FI86269C (en) 1986-10-13 1986-10-13 Method and apparatus for making a corrugated disc

Country Status (1)

Country Link
FI (1) FI86269C (en)

Also Published As

Publication number Publication date
FI864120A0 (en) 1986-10-13
FI86269B (en) 1992-04-30
FI86269C (en) 1992-08-10

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Owner name: HER MAJESTY THE QUEEN IN RIGHT OF THE