NO823053L - PROCEDURE FOR MANUFACTURING CARTRIDGES - Google Patents
PROCEDURE FOR MANUFACTURING CARTRIDGESInfo
- Publication number
- NO823053L NO823053L NO823053A NO823053A NO823053L NO 823053 L NO823053 L NO 823053L NO 823053 A NO823053 A NO 823053A NO 823053 A NO823053 A NO 823053A NO 823053 L NO823053 L NO 823053L
- Authority
- NO
- Norway
- Prior art keywords
- glue
- vermiculite
- board
- fire
- chips
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000003292 glue Substances 0.000 claims description 12
- 239000010455 vermiculite Substances 0.000 claims description 12
- 229910052902 vermiculite Inorganic materials 0.000 claims description 12
- 235000019354 vermiculite Nutrition 0.000 claims description 12
- 239000002023 wood Substances 0.000 claims description 11
- 239000011093 chipboard Substances 0.000 claims description 6
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 5
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000005253 cladding Methods 0.000 claims description 4
- 239000003063 flame retardant Substances 0.000 claims description 4
- 230000008901 benefit Effects 0.000 description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 239000001166 ammonium sulphate Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N9/00—Arrangements for fireproofing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Forests & Forestry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Building Environments (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Laminated Bodies (AREA)
Description
Fremgangsmåte til fremstilling av en brannhemmende eller ikke brennbar sponplate, særlig til kledningsformål Process for the production of a fire-retardant or non-combustible chipboard, particularly for cladding purposes
Oppfinnelsen angår en fremgangsmåte til fremstilling av The invention relates to a method for the production of
en brannhemmende eller ikke brennbar sponplate, spesielt til bekledningsformål. a fire-retardant or non-combustible chipboard, especially for cladding purposes.
Det er allerede blitt foreslått å fremstille slike plater ved at trespon etter å være forsynt med lim blandes med ekspan-dert vermikulitt som ikke har fått påført lim, hvoretter blandingen presses til en plate. It has already been proposed to produce such boards by mixing wood chips after being supplied with glue with expanded vermiculite that has not had glue applied, after which the mixture is pressed into a board.
På denne måte har man kunnet fremstille sponplater som fort-satt har de vanlige gode egenskaper til plater som bare er frem-stilt av trespon, idet de er lette å bearbeide og har god strekk-styrke og bøyningsstyrke, samtidig som de i sterk grad er brannhemmende. Blandingsplatenes mekaniske styrke skyldes bl.a. det forhold at den ubelimte vermikulitt fordeles meget jevnt i platen og derved vil virke som en armering. Selv om andelen av vermikulitt går helt opp i 70-75%, mister blandingsplaten ikke sine fordeler med hensyn til styrke, bearbeidbarhet og utseende, og en slik plate er praktisk talt ikke brennbar. In this way, it has been possible to produce chipboards that still have the usual good properties of boards that are only made from wood shavings, as they are easy to process and have good tensile strength and bending strength, while at the same time they are to a large extent fire retardant. The mechanical strength of the mixing plates is due to, among other things, the condition that the unglued vermiculite is distributed very evenly in the plate and will thereby act as a reinforcement. Even if the proportion of vermiculite goes up to 70-75%, the mixed board does not lose its advantages in terms of strength, workability and appearance, and such a board is practically not combustible.
Blandingsplater av den angitte art er med særlig fordel blitt anvendt til fremstilling av brannhemmende dører, idet en plate inneholdende 40 deler trespon og 60 deler vermikulitt kan motstå ild i ca. 60 min. Hvis andelen av vermikulitt økes, økes brannsikkerheten uten at platen mister sine andre fordeler, men da vermikulitt er dyrere enn trespon, blir blandingsplaten også dyrere. Kvalitetsplater med stor brannsikkerhet kan derfor ofte bli for kostbare, f.eks. hvis de skal anvendes som klednings-plater. Mixed boards of the type specified have been used with particular advantage for the production of fire-resistant doors, as a board containing 40 parts wood shavings and 60 parts vermiculite can resist fire for approx. 60 min. If the proportion of vermiculite is increased, fire safety is increased without the board losing its other advantages, but as vermiculite is more expensive than wood chips, the composite board also becomes more expensive. Quality boards with high fire safety can therefore often be too expensive, e.g. if they are to be used as cladding panels.
Formålet med oppfinnelsen er å komme frem til en fremgangsmåte til fremstilling av blandingsplater av den ovenfor beskrevne art til en relativt lav pris, selv om de i høy grad er ikke brenn-bare, og uten at de nevnte fordeler med hensyn til bearbeidbarhet og styrke reduseres. The purpose of the invention is to arrive at a method for the production of composite boards of the type described above at a relatively low price, even if they are largely non-combustible, and without reducing the aforementioned advantages in terms of workability and strength .
Denne hensikt er ifølge oppfinnelsen oppnådd ved at tresponene før de får påført lim impregneres med ammmoniumsulfat, According to the invention, this purpose is achieved by impregnating the wood shavings with ammonium sulphate before they are applied with glue,
og at sponene etter limpåføringen som i og for seg kjent blandes med vermikulitt som ikke har fått påført lim, hvoretter blandingen and that after the application of glue, as is known per se, the chips are mixed with vermiculite that has not had glue applied, after which the mixture
presses til en plate. pressed into a plate.
Det er i og for seg kjent at ammoniumsulfat kan anvendes It is known per se that ammonium sulphate can be used
som impregneringsmiddel til økning av brannsikkerheten av tre. as an impregnation agent to increase the fire safety of wood.
Det overraskende er imidlertid at det har vist seg at man ved The surprising thing, however, is that it has been shown that people know
å impregnere tresponene med ammoniumsulfat før de får påført lim, blande^ med vermikulitt som ikke har fått påført limxo<g>V<p>ress<e>^, oppnår en slik økning av brannsikkerheten at andelen av vermikulitt i den ferdige plate kan holdes vesentlig lavere enn hittil antatt, slik at den ferdige plate kan bli billigere, selv om der stilles krav om en brannsikkerhet i klasse A. Det har vist seg at disse kvalitetskrav kan ventes oppnådd allerede med en vermikulitt-andel på ca. 40% av den samlede blandingsmasse, dvs. at en slik plate vil kunne inneholde ca. 60% forholdsvis billige trespon. impregnating the wood shavings with ammonium sulfate before applying glue, mixing^ with vermiculite that has not been applied limxo<g>V<p>ress<e>^, achieves such an increase in fire safety that the proportion of vermiculite in the finished board can be kept significantly lower than previously thought, so that the finished board can be cheaper, even if there is a demand for fire safety in class A. It has been shown that these quality requirements can be expected to be achieved already with a vermiculite proportion of approx. 40% of the total mixed mass, i.e. that such a plate will be able to contain approx. 60% relatively cheap wood shavings.
Da det er tresponene som skal forsynes med lim, betyr dette blandingsforhold videre at platen vil inneholde mere lim i forhold til en plate hvor mengden av vermikulitt er like stor som eller enda større enn sponmengden, hvorved platens styrke blir særlig høy uten at noen av de ellers anførte fordeler går tapt. Tvertimot oppnås den ytterligere fordel at giftigheten av den As it is the wood shavings that are to be supplied with glue, this mixing ratio also means that the board will contain more glue compared to a board where the amount of vermiculite is as large as or even greater than the amount of chips, whereby the strength of the board becomes particularly high without any of the otherwise stated benefits are lost. On the contrary, the additional advantage is obtained that the toxicity of it
røk som utvikles når platen utsettes for ild, blir redusert når der som impregneringsmiddel for sponene anvendes ammoniumsulfat, fordi dette vil binde formaldehyd som unnviker fra limet. smoke that develops when the board is exposed to fire is reduced when ammonium sulphate is used as an impregnating agent for the chips, because this will bind formaldehyde that escapes from the glue.
Alt i alt kan man således ved hjelp av oppfinnelsen på enkel måte skaffe en sponplate som er lett å bearbeide og har stor brannsikkerhet og mekanisk styrke, samtidig med at den er billig å fremstille. All in all, with the help of the invention, it is thus possible to easily obtain a chipboard that is easy to process and has great fire safety and mechanical strength, while at the same time being cheap to produce.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK400581A DK400581A (en) | 1981-09-09 | 1981-09-09 | PROCEDURE FOR PREPARING A FLAMMABLE OR INFLAMMABLE CHIP, IN PARTICULAR FOR CLOTHING FORM |
Publications (1)
Publication Number | Publication Date |
---|---|
NO823053L true NO823053L (en) | 1983-03-10 |
Family
ID=8129194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO823053A NO823053L (en) | 1981-09-09 | 1982-09-08 | PROCEDURE FOR MANUFACTURING CARTRIDGES |
Country Status (6)
Country | Link |
---|---|
DE (1) | DE3233354A1 (en) |
DK (1) | DK400581A (en) |
FI (1) | FI73622C (en) |
GB (1) | GB2108978B (en) |
NO (1) | NO823053L (en) |
SE (1) | SE8205092L (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4120759C2 (en) * | 1991-06-24 | 1995-06-22 | Flam X Verwaltung | Fire-retardant lightweight door |
DE4310191C2 (en) * | 1992-03-31 | 1999-12-16 | Yamaha Corp | Laminated fibreboard |
-
1981
- 1981-09-09 DK DK400581A patent/DK400581A/en not_active Application Discontinuation
-
1982
- 1982-09-06 GB GB08225325A patent/GB2108978B/en not_active Expired
- 1982-09-08 DE DE19823233354 patent/DE3233354A1/en not_active Withdrawn
- 1982-09-08 FI FI823110A patent/FI73622C/en not_active IP Right Cessation
- 1982-09-08 SE SE8205092A patent/SE8205092L/en unknown
- 1982-09-08 NO NO823053A patent/NO823053L/en unknown
Also Published As
Publication number | Publication date |
---|---|
DK400581A (en) | 1983-03-10 |
SE8205092D0 (en) | 1982-09-08 |
FI73622B (en) | 1987-07-31 |
FI823110L (en) | 1983-03-10 |
DE3233354A1 (en) | 1983-03-31 |
FI823110A0 (en) | 1982-09-08 |
FI73622C (en) | 1987-11-09 |
GB2108978B (en) | 1985-10-09 |
SE8205092L (en) | 1983-03-10 |
GB2108978A (en) | 1983-05-25 |
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