NO136239B - - Google Patents
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- Publication number
- NO136239B NO136239B NO742178A NO742178A NO136239B NO 136239 B NO136239 B NO 136239B NO 742178 A NO742178 A NO 742178A NO 742178 A NO742178 A NO 742178A NO 136239 B NO136239 B NO 136239B
- Authority
- NO
- Norway
- Prior art keywords
- wood
- impregnation
- plastic
- impregnated
- glued
- Prior art date
Links
- 239000002023 wood Substances 0.000 claims description 35
- 238000005470 impregnation Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 8
- 238000006116 polymerization reaction Methods 0.000 claims description 5
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 5
- 241000018646 Pinus brutia Species 0.000 description 5
- 235000011613 Pinus brutia Nutrition 0.000 description 5
- 241000218657 Picea Species 0.000 description 4
- 241001070947 Fagus Species 0.000 description 2
- 235000010099 Fagus sylvatica Nutrition 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 235000018185 Betula X alpestris Nutrition 0.000 description 1
- 235000018212 Betula X uliginosa Nutrition 0.000 description 1
- 244000089654 Betula populifolia Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/15—Impregnating involving polymerisation including use of polymer-containing impregnating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/13—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board all layers being exclusively wood
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
Foreliggende oppfinnelse angår en framgangsmåte til impregnering av ferdig formede gjenstander av trevirke. The present invention relates to a method for impregnating preformed objects made of wood.
En rekke metoder til framstilling av plastimpregnert trevirke er kjsnt. Trevirket impregneres med en dertil egnet upolymerisert plast ved vanlig trykk/vakuumimpregnerings-teknikk. Plasten bringes så til herding (polymerisering) A number of methods for producing plastic-impregnated wood are known. The wood is impregnated with a suitable unpolymerised plastic using the usual pressure/vacuum impregnation technique. The plastic is then brought to cure (polymerization)
på plass i trevirket ved hjelp av kjente midler/metoder, in place in the wood using known means/methods,
ved romstemperatur, ved oppvarming, eller ved radioaktiv bestråling. at room temperature, by heating, or by radioactive irradiation.
En rekke, forskjellige typer av plast blir benyttet til impregnering av trevirke, og de tilfører trevirket forskjellige egenskaper som økt fasthet, økt slitestyrke, større stabilitet, større holdbarhet osv. A number of different types of plastic are used to impregnate wood, and they add different properties to the wood such as increased firmness, increased wear resistance, greater stability, greater durability, etc.
Plasten kan også tilsettes fargestoffer, brannhemmende midler m.m. Og man kan derfor med de kjente midler og metoder som står til rådighet, ved plastimpregnering, tilføre trevirket en rekke forbedrede egenskaper etter hva dette skal benyttes til. Dyes, fire retardants etc. can also be added to the plastic. And you can therefore use the known means and methods available, by plastic impregnation, to add a number of improved properties to the wood, depending on what it is to be used for.
Av ulemper ved slik plastimpregnering kan nevnes at trevirket, under herdeprosessen, dimensjonsforandres og har lett for å deformeres (slå seg). Dette medføder at arbeidsstykket må bearbeides etter herdingen, og er da betydelig vanskeligere å bearbeide. Disadvantages of such plastic impregnation include the fact that the wood, during the hardening process, changes in size and is easily deformed (breaks). This means that the workpiece must be processed after hardening, and is then significantly more difficult to process.
En annen ulempe er at full gjennomimpregnering med Another disadvantage is that full impregnation with
plast blir dyr, da omkostningene ved prosessen står noen--lunde i forhold til medgått plastmengde. Av denne grunn kan plastimpregnering ikke benyttes på flere områder, hvor det ellers ville være ønskelig. plastic becomes expensive, as the costs of the process are somewhat in relation to the amount of plastic used. For this reason, plastic impregnation cannot be used in several areas, where it would otherwise be desirable.
Det er også kjent å plastimpregnere og herde lameller av tre som deretter limes på andre arbeidsstykker som f.eks. ski og vinduer. It is also known to impregnate and harden slats of wood with plastic which are then glued to other workpieces such as e.g. skis and windows.
Ulemper ved dette er f.eks. at lamellene har lett Disadvantages of this are e.g. that the slats have eased
for å slå seg ved herdingen, og derfor må maskineres før pålimingen. Videre gir denne metode bare beskyttelse på de flatene hvor lamellene blir pålimt. to settle during curing, and therefore must be machined before bonding. Furthermore, this method only provides protection on the surfaces where the slats are glued.
En annen vesentlig ulempe ved gjennomimpregnering ved vakuum eller trykk, er at ikke alle tresorter lar seg impregnere på denne måte. F.eks. gran, som er den mest alminnelige norske tresort, kan ikke impregneres ved trykk eller vakuum. Dette kommer av at denne tresort har helt lukkede porer slik at alt tørt granvirke vil motsette enhver dybdeimpregnering. Det samme gjelder f.eks. malmen av furu. Derimot kan yteveden fra furu impregneres. Another significant disadvantage of impregnation through vacuum or pressure is that not all types of wood can be impregnated in this way. E.g. Spruce, which is the most common Norwegian type of wood, cannot be impregnated by pressure or vacuum. This is because this type of wood has completely closed pores so that all dry spruce will resist any deep impregnation. The same applies to e.g. the ore of pine. In contrast, the surface wood from pine can be impregnated.
Foreliggende oppfinnelse går ut på å eliminere de ovennevnte ulempene, og dette oppnås ved en fremgangsmåte til impregnering av ferdig formede gjenstander av trevirke som er karakterisert ved at det fremstilles en kjerne av en tresort eller tresponmateriale eller lignende som er resistent overfor impregnering, at kjernen i det vesentlige gis den ferdige gjenstands form, at kjernen deretter pålimes et relativt tynt lag av en tresort som egner seg godt for impregnering på alle sine flater eller enkelte av disse, og at hele gjenstanden deretter impregneres på i og for seg kjent måte ved vakuum eller trykk. The present invention aims to eliminate the above-mentioned disadvantages, and this is achieved by a method for impregnating ready-made objects made of wood which is characterized in that a core is produced from a type of wood or wood chip material or the like which is resistant to impregnation, that the core in the essential thing is that the finished object is given the shape, that the core is then glued with a relatively thin layer of a type of wood that is well suited for impregnation on all or some of its surfaces, and that the entire object is then impregnated in a manner known per se by vacuum or Print.
Et annet trekk ved oppfinnelsen er at det pålimte, impregnerbare trevirket har lite tverrsnitt i forhold til hoveddelen, slik at dennes form og dimensjon ikke påvirkes nevneverdig under impregnering- og polymeriseringsprosessen. Another feature of the invention is that the glued, impregnable wood has a small cross-section compared to the main part, so that its shape and dimensions are not significantly affected during the impregnation and polymerization process.
Hovedvolumet av et arbeidsstykke utføres altså av en tresort eller et tresponmateriale som er resistent overfor impregnering, f.eks. gran eller kjerneved av furu, og de deler av profilens overflate som ønskes spesielt beskyttet eller tilført en spesiell egenskap, belegges med et relativt tynt lag (lamineres fineres) av et trevirke som egner seg godt for impregnering (f.eks. bjørk, bøk, yteved av furu osv.). Hele arbeidsstykket med pålimt laminat impregneres så ved hjelp av vanlig vakuum/trykkmetode med den ønskede impregnering, f.eks. en plastkombinasjon som deretter herder. The main volume of a workpiece is therefore made of a type of wood or a wood chip material that is resistant to impregnation, e.g. spruce or pine heartwood, and the parts of the profile's surface that are desired to be particularly protected or given a special property, are covered with a relatively thin layer (laminated veneered) of a wood that is well suited for impregnation (e.g. birch, beech, surface wood of pine, etc.). The entire workpiece with glued-on laminate is then impregnated using the usual vacuum/pressure method with the desired impregnation, e.g. a plastic combination which then hardens.
Fordelen ved å bruke lite materiale i laget med materiale The advantage of using little material in the layer of material
som kan impregneres er at hovedstykket da ikke vil påvirkes så mye av de krefter som oppstår i det ytre sjikt at det forandres nevneverdig i dimensjon eller form. that can be impregnated is that the main piece will not be affected so much by the forces arising in the outer layer that it changes significantly in dimension or shape.
Ved denne metode vil de flater av et arbeidsstykke., With this method, they will flatten a workpiece.,
som man først og fremst ønsker å beskytte (forbedre), få et belegg med plastimpregnert tre, mens.de flater som ikke er belagt, også vil få en bedre overflatebehandling enn ved vanlig maling/lakkering. which you primarily want to protect (improve), get a coating with plastic-impregnated wood, while the surfaces that are not coated will also get a better surface treatment than with normal painting/varnishing.
Selv om den delen av trevirket ikke vil ta opp nevneverdig av plasten ved impregneringen, vil plastens inn-tregning i overflaten blir betydelig bedre enn ved vanlig overflatebehandling. .En annen meget viktig ting er at feil i overflaten på den ikke belagte delen av arbeidsstykket - i form avtørke-sprekker, kvisthull og lignende ved denne metoden vil få en meget god plastbeskyttelse. Although that part of the wood will not take up a significant amount of the plastic during the impregnation, the penetration of the plastic into the surface will be significantly better than with normal surface treatment. .Another very important thing is that defects in the surface of the non-coated part of the workpiece - in the form of wipe-cracks, twig holes and the like will receive a very good plastic protection with this method.
Dette, vil-man ikke oppnå om man impregnerer og herder lamellene før påliming. You will not achieve this if you impregnate and harden the slats before gluing.
Ved innfarging av plasten, vil man også oppnå å få den samme farge på både den belagte og ikke belagte delen av arbeidsstykket ;- • When coloring the plastic, you will also achieve the same color on both the coated and uncoated part of the workpiece;- •
Det som oppnås ved denne oppfinnelsen er: What is achieved by this invention is:
1. Man kan benytte et billigere materiale i en gjenstands hovedvolum, samtidig som man sparer en vesentlig men-gde av medgått plast til impregneringen. 2. Man kan laminere og bearbeide en gjenstand fult ferdig før plastimpregnering og herding. 3. Man oppnår forbedringen i styrke, stabilitet, holdbarhet og eventuelt utseende i forhold til ikke plastimpregnert 1. You can use a cheaper material in the main volume of an object, while at the same time saving a significant amount of used plastic for the impregnation. 2. You can laminate and process an object fully finished before plastic impregnation and curing. 3. The improvement in strength, stability, durability and possibly appearance is achieved compared to non-plastic-impregnated
trevirke. wood.
4. Man oppnår tilnærmet samme nn bl db ar het,.- stabilitet: qg utseende som ved trevirke som er gjennomimpregnert ved 4. You achieve approximately the same nn bl db ar het,.- stability: qg appearance as with wood that has been thoroughly impregnated with
plast. plastic.
5. Man'får en god beskyttelse også på de ikke laminerte flatene; ved innfarging også den samme farge. Oppfinnelsen er nærmere forklart ved tegningene. 5. Good protection is also obtained on the non-laminated surfaces; when dyed also the same colour. The invention is explained in more detail in the drawings.
Fig. 1 viser en vindusprofil som det er utført en del forsøk med. Fig. 1 shows a window profile with which a number of experiments have been carried out.
1) er hovedrammeprofilen utført i gran. 1) the main frame profile is made of spruce.
2) er utvendig flate hvor prøvene ble pålimt ca. 3 mm bjørk,bøk og yteved av furu. 3) og 4) er de innvendige f later hvor også de tre typer av ca. 3 mm finer ble pålimt. 2) are external surfaces where the samples were glued approx. 3 mm birch, beech and outer wood of pine. 3) and 4) are the internal surfaces where also the three types of approx. 3 mm veneer was glued on.
Prøver med alle tre typer av pålimt finer ble så impregnert med vanlig vakuum/trykkmetode, med polyester, for-sterket med akryl og tilsatt fargestoff. Samples with all three types of glued-on veneer were then impregnated using the usual vacuum/printing method, with polyester, reinforced with acrylic and added dye.
Polymeriseringen foregikk ved hjelp av radioaktiv bestråling. Andre prøver ble impregnert på samme måte, men med polyester uten akrylforsterkning og fargetilsetning. Disse ble herdet ved hjelp av varme. The polymerization took place with the help of radioactive irradiation. Other samples were impregnated in the same way, but with polyester without acrylic reinforcement and color addition. These were hardened using heat.
Alle prøvene beholdt sin retthet og sin dimensjon under impregnering og herding. Også i tappforbindelsene for hjørnesammensetningen beholdt sin opprinnelige tilpassning. All samples retained their straightness and dimension during impregnation and curing. Also in the pin connections for the corner assembly retained its original adaptation.
Flere av disse impregnerte treprofilene har vært plassert på en prøvevegg i kyst/slagregn-distrikt i ca. 1 år, og de har beholdt sin retthet, sin dimensjon og ikke tatt noen synlig skade. Several of these impregnated wooden profiles have been placed on a test wall in the coastal/torrential rain district for approx. 1 year, and they have kept their straightness, their dimension and not suffered any visible damage.
Fig. 2 er et blokkdiagram som viser metodens arbeids-gang. Trinn 1 er bearbeidingen av trematerialene etter konven-sjonelle metoder, alt etter hva det ferdige trevirke skal brukes til. Trinn 2 er lamineringen som må foregå på be-tryggende måte med solid lim som har én bestandighet som svarer til kravene fbr vedkommende, produkt. Fig. 2 is a block diagram showing the working process of the method. Step 1 is the processing of the wood materials according to conventional methods, depending on what the finished wood is to be used for. Step 2 is the lamination, which must take place in a safe manner with solid glue that has a strength that meets the requirements for the product in question.
Impregneringen, trinn 3 foregår fortrinnsvis som vakuum/trykk-impregnering og med et plastmateriale som tilfører trevirket de ønskede egenskaper. The impregnation, step 3, preferably takes place as a vacuum/pressure impregnation and with a plastic material that adds the desired properties to the wood.
Polymeriseringen, trinn 4 styres med kjente midler The polymerization, stage 4 is controlled by known means
slik at temperaturen ikke blir for høy og med en tilpasset hastighet slik at det ikke oppstår for store spenninger i lamineringssonen. so that the temperature does not become too high and at an adapted speed so that excessive stresses do not occur in the lamination zone.
Claims (2)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO742178A NO136239C (en) | 1974-06-17 | 1974-06-17 | PROCEDURES FOR IMPREGNATION OF FINISHED ARTICLES OF WOOD. |
DK272775AA DK138212B (en) | 1974-06-17 | 1975-06-17 | Method for impregnating finished objects of wood material with plastic materials. |
FI751796A FI60154C (en) | 1974-06-17 | 1975-06-17 | FRAMEWORK FOR PLASTIC OPERATION OF PLASTIC TRACK |
SE7506966A SE409667B (en) | 1974-06-17 | 1975-06-17 | PROCEDURE FOR IMPREGNATION OF PREFORMED FORMS OF WOOD WITH A CORE, WHICH IS RESISTANT TO IMPREGNATION, AND WITH A PALIMMAT RELATIVELY THIN LAYER OF LIGHTLY IMPREGNATED WOOD |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO742178A NO136239C (en) | 1974-06-17 | 1974-06-17 | PROCEDURES FOR IMPREGNATION OF FINISHED ARTICLES OF WOOD. |
Publications (3)
Publication Number | Publication Date |
---|---|
NO742178L NO742178L (en) | 1975-12-18 |
NO136239B true NO136239B (en) | 1977-05-02 |
NO136239C NO136239C (en) | 1977-08-10 |
Family
ID=19881668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO742178A NO136239C (en) | 1974-06-17 | 1974-06-17 | PROCEDURES FOR IMPREGNATION OF FINISHED ARTICLES OF WOOD. |
Country Status (4)
Country | Link |
---|---|
DK (1) | DK138212B (en) |
FI (1) | FI60154C (en) |
NO (1) | NO136239C (en) |
SE (1) | SE409667B (en) |
-
1974
- 1974-06-17 NO NO742178A patent/NO136239C/en unknown
-
1975
- 1975-06-17 FI FI751796A patent/FI60154C/en not_active IP Right Cessation
- 1975-06-17 SE SE7506966A patent/SE409667B/en unknown
- 1975-06-17 DK DK272775AA patent/DK138212B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NO742178L (en) | 1975-12-18 |
FI751796A (en) | 1975-12-18 |
FI60154C (en) | 1981-12-10 |
DK138212B (en) | 1978-07-31 |
SE409667B (en) | 1979-09-03 |
SE7506966L (en) | 1975-12-18 |
FI60154B (en) | 1981-08-31 |
DK272775A (en) | 1975-12-18 |
DK138212C (en) | 1979-01-15 |
NO136239C (en) | 1977-08-10 |
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