PL431094A1 - Wooden sandwich panel with a prismatic core with a prismatic core and method of producing a wooden sandwich panel with a prismatic core - Google Patents
Wooden sandwich panel with a prismatic core with a prismatic core and method of producing a wooden sandwich panel with a prismatic coreInfo
- Publication number
- PL431094A1 PL431094A1 PL431094A PL43109419A PL431094A1 PL 431094 A1 PL431094 A1 PL 431094A1 PL 431094 A PL431094 A PL 431094A PL 43109419 A PL43109419 A PL 43109419A PL 431094 A1 PL431094 A1 PL 431094A1
- Authority
- PL
- Poland
- Prior art keywords
- core
- minutes
- prismatic
- thickness
- veneers
- Prior art date
Links
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
- Laminated Bodies (AREA)
Abstract
Sposób wytwarzania warstwowych płyt komórkowych z pryzmatycznymi rdzeniami, w którym w pierwszym kroku metodą skrawania pozyskuje się arkusze obłogów rdzenia o grubości od 0,4 mm do 4 mm, korzystnie 2 mm (1) korzystnie poddając je następnie moczeniu przez zanurzenie w wodzie o temperaturze od 20°C do 40°C, korzystnie 30°C, lub nawilżaniu w parze o temperaturze od 50°C do 90°C, korzystnie 60°C, poddając je następnie uplastycznianiu przez nagrzewanie do temperatury od 60°C do 80°C, korzystnie 80°C w komorze mikrofalowej (3) w czasie od 2 minut do 8 minut, korzystnie 4 minuty, i w dalszej kolejności obłogi rdzenia poddając kształtowaniu w formach (5) wywierając obciążenie od 100 N do 400 N, korzystnie 250 N i utrzymując to obciążenie przez okres od 5 minut do 10 minut, korzystnie 7 minut, przy czym w tym samym czasie, mokre i odkształcone obłogi rdzenia poddawane są suszeniu w strumieniu gorącego powietrza o temperaturze od 40°C do 90°C, korzystnie 70°C, w kolejnym kroku na wąskie poziome powierzchnie rdzeni aplikuje się klej korzystnie PVAc w ilości od 40 g/m2 do 80 g/m2, korzystnie 80 g/m2, a następnie składa się rdzenie i okładziny wytworzone z arkuszy sklejki trzywarstwowej i uformowane stosy płyt ściska się w prasach (9) wywierając stały nacisk od 50 N do 100 N, korzystnie 70 N, przez okres od 5 minut do 30 minut, korzystnie 12 minut. Płyta komórkowa z rdzeniem pryzmatycznym zbudowana jest z zewnętrznych okładzin wykonanych z drewna, tworzyw drzewnych (korzystnie sklejki), lub innych kompozytów z dodatkiem drewna pomiędzy którymi umieszczony jest rdzeń, który jest rdzeniem pryzmatycznym, grubość okładzin wynosi od 3 mm do 25 mm, korzystnie 4 mm, rdzeń płyty według wynalazku wykonany jest z obłogów drewnianych korzystnie skrawanych obwodowo, grubość obłogów do wykonania pryzmatycznego rdzenia wynosi od 0,4 mm do 4 mm, korzystnie 2 mm, grubość rdzenia wynosi od 8 mm do 44 mm, korzystnie 12 mm, kąt pochylenia ramion pryzmatycznego rdzenia powinien być równy od 20° do 60°, korzystnie 45°, a grubość płyty komórkowej wynosi od 14 mm do 50 mm, korzystnie 20 mm.A method for the production of sandwich panels with prismatic cores, in which, in the first step, by cutting, sheets of core veneers are obtained with a thickness of 0.4 mm to 4 mm, preferably 2 mm (1), preferably by submerging them in water at a temperature of from 20 ° C to 40 ° C, preferably 30 ° C, or steam humidifying at a temperature of 50 ° C to 90 ° C, preferably 60 ° C, then subjecting them to plasticization by heating to a temperature of 60 ° C to 80 ° C, preferably 80 ° C in a microwave chamber (3) for 2 minutes to 8 minutes, preferably 4 minutes, and then the core is layered by shaping in the molds (5) applying a load of 100 N to 400 N, preferably 250 N, and keeping it load for a period of 5 minutes to 10 minutes, preferably 7 minutes, at the same time, the wet and deformed core veneers are dried in a stream of hot air at a temperature of 40 ° C to 90 ° C, preferably 70 ° C, at next step to the narrow horizontal the surfaces of the cores apply glue, preferably PVAc in an amount of 40 g / m2 to 80 g / m2, preferably 80 g / m2, and then the cores and facings made of three-layer plywood sheets are assembled and the formed plate stacks are pressed in presses (9) by applying constant pressure from 50 N to 100 N, preferably 70 N, for a period of 5 minutes to 30 minutes, preferably 12 minutes. A cellular board with a prismatic core is made of external claddings made of wood, wood materials (preferably plywood), or other composites with the addition of wood, between which a core is placed, which is a prismatic core, the thickness of the cladding is from 3 mm to 25 mm, preferably 4 mm, the core of the panel according to the invention is made of wooden veneers, preferably circumferentially cut, the thickness of the veneers for making the prismatic core is from 0.4 mm to 4 mm, preferably 2 mm, the thickness of the core is from 8 mm to 44 mm, preferably 12 mm, the inclination of the arms of the prismatic core should be 20 ° to 60 °, preferably 45 °, and the thickness of the cellular plate is between 14 mm and 50 mm, preferably 20 mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL431094A PL242131B1 (en) | 2019-09-09 | 2019-09-09 | Wooden sandwich panel with a prismatic core with a prismatic core and method of producing a wooden sandwich panel with a prismatic core |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL431094A PL242131B1 (en) | 2019-09-09 | 2019-09-09 | Wooden sandwich panel with a prismatic core with a prismatic core and method of producing a wooden sandwich panel with a prismatic core |
Publications (2)
Publication Number | Publication Date |
---|---|
PL431094A1 true PL431094A1 (en) | 2021-03-22 |
PL242131B1 PL242131B1 (en) | 2023-01-23 |
Family
ID=75107890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL431094A PL242131B1 (en) | 2019-09-09 | 2019-09-09 | Wooden sandwich panel with a prismatic core with a prismatic core and method of producing a wooden sandwich panel with a prismatic core |
Country Status (1)
Country | Link |
---|---|
PL (1) | PL242131B1 (en) |
-
2019
- 2019-09-09 PL PL431094A patent/PL242131B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
PL242131B1 (en) | 2023-01-23 |
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