NO823053L - PROCEDURE FOR MANUFACTURING CARTRIDGES - Google Patents

PROCEDURE FOR MANUFACTURING CARTRIDGES

Info

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
Application number
NO823053A
Other languages
Norwegian (no)
Inventor
Kaj Skotte Moeller
Stig Fritjof Johansson
Original Assignee
Skamol Skarrehage Molerverk As
Kaj Skotte Moeller
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 Skamol Skarrehage Molerverk As, Kaj Skotte Moeller filed Critical Skamol Skarrehage Molerverk As
Publication of NO823053L publication Critical patent/NO823053L/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE 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
    • B27N9/00Arrangements for fireproofing
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/30Sulfur-, 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)

1. Fremgangsmåte til fremstilling av en brannhemmende eller ikke brennbar sponplate, spesielt til kledningsformål,karakterisert vedat tresponene før de forsynes med lim impregneres med ammoniumsulfat, og at sponene etter lim-påføringen som i og for seg kjent blandes med vermikulitt som ikke har fått påført lim, hvoretter blandingen presses til en plate.1. Method for the production of a fire-retardant or non-flammable chipboard, especially for cladding purposes, characterized in that the wood chips are impregnated with ammonium sulfate before they are supplied with glue, and that the chips are mixed with vermiculite that has not been applied after the glue application, which is known per se glue, after which the mixture is pressed into a plate. 2. Fremgangsmåte som angitt i krav 1 til fremstilling av en ikke brennbar sponplate,karakterisert vedat der benyttes en andel av impregnerte trespon i blandingen på mere enn halvparten av den samlede blanding.2. Method as specified in claim 1 for the production of a non-combustible chipboard, characterized in that a proportion of impregnated wood chips in the mixture of more than half of the total mixture is used.
NO823053A 1981-09-09 1982-09-08 PROCEDURE FOR MANUFACTURING CARTRIDGES NO823053L (en)

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)

* Cited by examiner, † Cited by third party
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

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

Similar Documents

Publication Publication Date Title
US3438847A (en) Process of treating composite boards with borate chemicals produced thereby and product
US4065413A (en) Fire resistance wood-based boards, process for producing same and compositions useful therefor
FI74647B (en) FOERFARANDE FOER FRAMSTAELLNING AV BRANDSKYDDADE SPAONSKIVOR OCH TRAESPAONSFORMSTYCKEN.
EP3174707B1 (en) Composite element with a covering layer of veneer
NO823053L (en) PROCEDURE FOR MANUFACTURING CARTRIDGES
US2034522A (en) Fireproof building material
DE10006041B4 (en) Wood wool lightweight board and process for its preparation
DE1294003B (en) Process for the production of fire-retardant veneer or laminated wood panels
DE3303204A1 (en) Refractory and radiation-repelling lightweight building material and method for the production thereof
DE3232563C2 (en) Thermally insulating component or part of a building
CH202785A (en) Sound and heat insulating component.
CA2256398A1 (en) Fireproofing agent for particle or fibre boards
US1924181A (en) Roofing and process of manufacturing same
NO136601B (en)
CN110626012A (en) Basalt fiber non-combustible plate and preparation method thereof
DE2524699A1 (en) Fire resistant resin bonded chipboard - from wood chips preimpregnated with magnesium salts and alkaline earth oxides
DE3024738C2 (en)
NO854979L (en) FIBER PLATE AND PROCEDURE FOR MANUFACTURING THIS.
SU1687588A1 (en) Composition for treating hydrophobized wood particles or surfaces of wooden panels
DE3144773A1 (en) Process for producing non-combustible, coated wood chip mouldings
US3415765A (en) Fire resistant particle board containing monobasic ammonium phosphate and/or ammonium sulphate
JPH01152006A (en) Manufacture of flame retardant woody product
DE2324046A1 (en) Fire-resistant, temp-variation resistant chipboard prepn. - by adding alcohol to glue or wood chips
SU897506A1 (en) Comrosition for fire-resistance treatment of wooden materials
AT156367B (en) Large components such as building panels, doors, walls, etc. like