NO176324B - Method for separately applying a liquid two-component adhesive system to the surface of three parts - Google Patents
Method for separately applying a liquid two-component adhesive system to the surface of three parts Download PDFInfo
- Publication number
- NO176324B NO176324B NO893972A NO893972A NO176324B NO 176324 B NO176324 B NO 176324B NO 893972 A NO893972 A NO 893972A NO 893972 A NO893972 A NO 893972A NO 176324 B NO176324 B NO 176324B
- Authority
- NO
- Norway
- Prior art keywords
- liquid
- adhesive system
- component adhesive
- parts
- formaldehyde
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000007788 liquid Substances 0.000 title claims abstract description 13
- 239000000853 adhesive Substances 0.000 title claims abstract description 7
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 7
- 239000004848 polyfunctional curative Substances 0.000 claims description 11
- 239000004840 adhesive resin Substances 0.000 claims description 5
- 229920006223 adhesive resin Polymers 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 12
- 239000003292 glue Substances 0.000 description 11
- 239000002023 wood Substances 0.000 description 8
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000009974 thixotropic effect Effects 0.000 description 3
- 229920003180 amino resin Polymers 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 229960001755 resorcinol Drugs 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- 240000000731 Fagus sylvatica Species 0.000 description 1
- 235000010099 Fagus sylvatica Nutrition 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- KVBYPTUGEKVEIJ-UHFFFAOYSA-N benzene-1,3-diol;formaldehyde Chemical compound O=C.OC1=CC=CC(O)=C1 KVBYPTUGEKVEIJ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- HMJMQKOTEHYCRN-UHFFFAOYSA-N formaldehyde;phenol;1,3,5-triazine-2,4,6-triamine;urea Chemical compound O=C.NC(N)=O.OC1=CC=CC=C1.NC1=NC(N)=NC(N)=N1 HMJMQKOTEHYCRN-UHFFFAOYSA-N 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/04—Condensation polymers of aldehydes or ketones with phenols only
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J5/04—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving separate application of adhesive ingredients to the different surfaces to be joined
Abstract
Description
Foreliggende oppfinnelse vedrører en fremgangsmåte for atskilt påføring av et flytende tokomponent-limsystem på overflaten av tredeler. The present invention relates to a method for separately applying a liquid two-component adhesive system to the surface of wooden parts.
Det er kjent mange fremgangsmåter for påføring av lim på overflaten av tredeler. DE-B 21 01 800 beskriver således en fremgangsmåte for påføring av lim ved fremstillingen av lim-trekonstruksjoner, hvorved limet holdes sirkulerende som ferdig blanding i et kretsløp, og påføres i form av bånd på arbeidsstykkets bredside. Many methods are known for applying glue to the surface of wooden parts. DE-B 21 01 800 thus describes a method for applying glue in the production of glued-wood constructions, whereby the glue is kept circulating as a finished mixture in a circuit, and is applied in the form of a band on the wide side of the workpiece.
Det er en ulempe ved denne fremgangsmåte at ved sammen-pressing av tredelene vil limet på sine steder ikke danne en sammenhengende film, og dette kan resultere i feilsteder i limtrekonstruksjonene. Bearbeidingstiden for hver limsats er dessuten begrenset, fordi limets viskositet øker med tiden. It is a disadvantage of this method that when the wooden parts are pressed together, the glue will not form a continuous film in places, and this can result in defects in the glued wood constructions. The processing time for each batch of glue is also limited, because the glue's viscosity increases with time.
DE-A 24 16 032 beskriver en fremgangsmåte for sammen-føying av treprodukter, hvorved den flytende harpiks og den flytende herder påføres hver for seg ved hjelp av en stripe-fordeler. DE-A 24 16 032 describes a method for joining wood products, whereby the liquid resin and the liquid hardener are applied separately by means of a strip distributor.
Denne fremgangsmåte har den ulempe at det, foruten den ovennevnte dannelse av feilsteder, også på sine steder kan forekomme utilstrekkelig sammenblanding av herder og harpiks, og det kan derfor oppstå fuktsoner som ikke eller bare utilstrekkelig er herdet. This method has the disadvantage that, in addition to the above-mentioned formation of defects, insufficient mixing of hardener and resin can also occur in places, and moisture zones can therefore occur which are not or only insufficiently hardened.
EP-A-241 891 beskriver en anordning for påføring av lim på tredeler, hvorved det ved hjelp av et ledeorgan dannes en sprøytefilm. Ifølge den tyske patentanmeldelse 37 12 347.5 er ledeorganet ytterligere forbedret med luftoppdemmingshindrende innretninger. Limharpiksen og herderen påføres adskilt med hver sin av disse anordninger som sprøytefilm på overflaten av tredelene. EP-A-241 891 describes a device for applying glue to wooden parts, whereby a spray film is formed with the aid of a guide. According to the German patent application 37 12 347.5, the guide member is further improved with air blocking prevention devices. The adhesive resin and the hardener are applied separately with each of these devices as a spray film on the surface of the wooden parts.
Ved meget høye gjennomløpshastigheter av trematerialet som skal påføres limbelegg, kan det ved denne påføringsmetode forekomme at den mengdemessig meget.mindre andel av herder viser filmavbrudd, slik at det i limtreet oppstår feilsoner hvor limet ikke er herdnet. At very high flow rates of the wood material to be applied with adhesive coating, with this application method it can happen that the quantity-wise very small proportion of hardener shows film breaks, so that error zones occur in the glued wood where the glue has not hardened.
Oppfinnelsens formål er å utvikle en fremgangsmåte for påføring av et flytende tokomponent-limsystem hvorved de to komponenter vil påføres jevnt ved best mulig sammenblanding og uten at det oppstår feilsoner i form av ubefuktede flater eller grunnet ufullstendig sammenblanding av komponentene. The purpose of the invention is to develop a method for applying a liquid two-component adhesive system whereby the two components will be applied evenly with the best possible mixing and without error zones occurring in the form of unmoistened surfaces or due to incomplete mixing of the components.
Dette oppnås ifølge oppfinnelsen med en fremgangsmåte av den innledningsvis angitte art ved at limharpiksen påføres som støpefilm og herderen påføres i form av bånd eller'striper. According to the invention, this is achieved with a method of the type indicated at the outset in that the adhesive resin is applied as a molding film and the hardener is applied in the form of bands or strips.
Fremgangsmåten utøves ved anvendelse av den i og for seg kjente anordning for påføring av limharpiks, som er beskrevet i tysk patentsøknad P 37 12 347.5 og som ikke er gjenstand for foreliggende oppfinnelse. Denne anordning består i hovedsak av en forrådsbeholder, et dysehode som er utformet som en sylindrisk huldel og forsynt med utløpsåpninger, eh fremsky-verinnretning for trematerialet som skal påføres lim, et oppsamlertrau som er forbundet med en ringledning med to pumper. Vesentlig for fremgangsmåten er de luftoppdemmingshindrende innretninger ved dysehodets ledeorgan. The method is carried out using the per se known device for applying adhesive resin, which is described in German patent application P 37 12 347.5 and which is not the subject of the present invention. This device mainly consists of a supply container, a nozzle head which is designed as a cylindrical hollow part and provided with outlet openings, a pusher device for the wood material to be applied glue, a collection trough which is connected by a ring line with two pumps. Essential to the method are the air blocking devices at the nozzle head's guide.
Limstripefordeleren for påføring av en komponent er like-ledes kjent og beskrevet i DE-AS 21 01 800. The adhesive strip dispenser for applying a component is also known and described in DE-AS 21 01 800.
Grunnet den adskilte påføring av de to flytende komponenter kan hver av disse holdes i kretsløp i påføringsinnretnin-gene så lenge det måtte ønskes, uten periodisk rengjøring av anordningen. Due to the separate application of the two liquid components, each of these can be kept in circulation in the application devices as long as desired, without periodic cleaning of the device.
Fremgangsmåten ifølge oppfinnelsen muliggjør bruk av forskjellige, flytende limtyper, f.eks. aminoplast- eller fenoplast-harpikser såsom formaldehyd-urinstoffkondensat, f ormaldehyd-urinstof f-melaminkondensat, formaldehyd-urinstoff-melamin-fenolkondensat, formaldehyd-fenolkondensat, formaldehyd-fenol/resorsinkondensat eller resorsin-formaldehydkonden-sat eller 4,4'-difenylmetandiisocyanat. The method according to the invention enables the use of different types of liquid glue, e.g. aminoplast or phenoplast resins such as formaldehyde-urea condensate, formaldehyde-urea f-melamine condensate, formaldehyde-urea-melamine-phenol condensate, formaldehyde-phenol condensate, formaldehyde-phenol/resorcin condensate or resorcin-formaldehyde condensate or 4,4'-diphenylmethane diisocyanate.
Som herder for aminoplast-harpiksene kan benyttes syre-holdige og syredannende forbindelser. Det vil fortrinnsvis anvendes ammoniumsalter, samt organiske og anorganiske syrer. Formaldehyd og/eller formaldehydavspaltende forbindelser er egnet som herdere for fenoplast-harpiksene. Herderdoseringen retter seg etter de ønskede herdningstider. Acid-containing and acid-forming compounds can be used as hardeners for the aminoplast resins. Ammonium salts, as well as organic and inorganic acids, will preferably be used. Formaldehyde and/or formaldehyde-releasing compounds are suitable as hardeners for the phenoplast resins. The hardener dosage depends on the desired curing times.
De flytende komponenter kan benyttes såvel i tiksotrop som i ikke-tiksotrop form. I tiksotrope tilberedninger inne-holder vanlige tiksotroperingsmidler såsom silikater. The liquid components can be used both in thixotropic and non-thixotropic form. Thixotropic preparations contain common thixotroping agents such as silicates.
Limharpiksene har viskositeter av 100 - 10.000 og fortrinnsvis 500 - 5.000 mPa.s. The adhesive resins have viscosities of 100 - 10,000 and preferably 500 - 5,000 mPa.s.
Trevirket som påføres de flytende komponenter som film eller striper, har en fremføringshastighet av 0,5 - 4 m/s og fortrinnsvis 1,5-3 m/s. The wood which is applied to the liquid components such as film or strips has a feed speed of 0.5 - 4 m/s and preferably 1.5 - 3 m/s.
De to flytende komponenter påføres i en totalmengde av 40 - 600 g/m<2>. The two liquid components are applied in a total amount of 40 - 600 g/m<2>.
Ved fremgangsmåten ifølge oppfinnelsen blir tredeler påført et jevnt limsjikt som er egnet for fremstilling av 1 imte trekonstruksjoner. In the method according to the invention, wooden parts are applied with an even layer of glue which is suitable for the production of one-piece wooden constructions.
Eksempel Example
Fremgangsmåten ifølge oppfinnelsen ble testet under forsøk med sammenliming av prøvestykker av bøketre, av format 150 x 300 mm. The method according to the invention was tested during experiments with gluing together sample pieces of beech wood, of format 150 x 300 mm.
Et fenol-resorsin-formaldehydkondensasjonsprodukt med molforhold fenol:resorsin:formaldehyd 1:0,8:1, med tørrstoff-innhold av 65 + 1 vekt% (2 h/120°C) og en viskositet ved 20°C av ca. 2.700 mPa.s ble påført prøvestykkene som støpefilm. Påføringsmengden utgjorde ca. 320 g/m<2>. En flytende herder, bestående av ca. 10% formaldehyd samt fyll-, hjelpe- og tiksotroperingsmidler, ble deretter påført i form av striper. A phenol-resorcin-formaldehyde condensation product with a molar ratio of phenol:resorcin:formaldehyde 1:0.8:1, with a solids content of 65 + 1% by weight (2 h/120°C) and a viscosity at 20°C of approx. 2,700 mPa.s was applied to the test pieces as a casting film. The amount applied was approx. 320 g/m<2>. A liquid hardener, consisting of approx. 10% formaldehyde as well as fillers, auxiliary and thixotroping agents were then applied in the form of strips.
Påføringsmengden av herder utgjorde ca. 110 g/m<2>. Binde-styrken hos de limpåførte prøvestykker ble deretter testet i overensstemmelse med DIN 53 254, avsnitt 5, ved romstemperatur samt under vekslende klimaforhold ifølge DIN 68 141 i forbin-delse med DIN 53 2 54. De normbestemte minimums-bindestyrker ble i samtlige tilfeller oppnådd eller overskredet. The amount of hardener applied was approx. 110 g/m<2>. The bond strength of the adhesive-applied test pieces was then tested in accordance with DIN 53 254, section 5, at room temperature and under changing climate conditions according to DIN 68 141 in conjunction with DIN 53 2 54. The standard minimum bond strengths were achieved in all cases or exceeded.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3834026A DE3834026A1 (en) | 1988-10-06 | 1988-10-06 | METHOD FOR SEPARATELY APPLYING A LIQUID, TWO-COMPONENT GLUE SYSTEM TO THE SURFACE OF WOODEN PARTS |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| NO893972D0 NO893972D0 (en) | 1989-10-05 |
| NO893972L NO893972L (en) | 1990-04-09 |
| NO176324B true NO176324B (en) | 1994-12-05 |
| NO176324C NO176324C (en) | 1995-03-15 |
Family
ID=6364524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO893972A NO176324C (en) | 1988-10-06 | 1989-10-05 | Method for separately applying a liquid two-component adhesive system to the surface of three parts |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0362742B1 (en) |
| AT (1) | ATE115900T1 (en) |
| DE (2) | DE3834026A1 (en) |
| DK (1) | DK170808B1 (en) |
| ES (1) | ES2065964T3 (en) |
| FI (1) | FI89878C (en) |
| NO (1) | NO176324C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1270541B (en) * | 1993-05-18 | 1997-05-06 | Manea Srl Off Mec Flli | IN-LINE GLUING METHOD OF EDGES TO PANEL SIDES IN A EDGE BANDING MACHINE |
| CZ296370B6 (en) * | 1998-06-22 | 2006-02-15 | Akzo Nobel N. V. | Device and method for application of a gluing system |
| AT411374B (en) | 2000-06-06 | 2003-12-29 | Kaindl M | COATING, COVERING OR THE LIKE, PANELS FOR ITS EDUCATION AND METHOD AND DEVICE FOR PRODUCING THE PANELS |
| US6458417B2 (en) | 2000-07-07 | 2002-10-01 | Akzo Nobel N.V. | Method of gluing |
| DE10121953A1 (en) * | 2001-05-05 | 2002-11-14 | Claus Mohr | Carrier device for multi-component adhesive |
| DE10246775A1 (en) * | 2002-10-07 | 2004-04-15 | Basf Ag | Wood components, are joined together by warming them in an electromagnetic field and then applying adhesive |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2416032C3 (en) * | 1974-03-27 | 1982-04-01 | Aktiebolaget Casco, Stockholm | Method for gluing wooden parts |
| DE3612973A1 (en) * | 1986-04-17 | 1987-10-29 | Basf Ag | DEVICE FOR APPLYING GLUE TO WOOD PARTS |
-
1988
- 1988-10-06 DE DE3834026A patent/DE3834026A1/en not_active Withdrawn
-
1989
- 1989-09-12 FI FI894300A patent/FI89878C/en not_active IP Right Cessation
- 1989-09-30 ES ES89118173T patent/ES2065964T3/en not_active Expired - Lifetime
- 1989-09-30 AT AT89118173T patent/ATE115900T1/en not_active IP Right Cessation
- 1989-09-30 EP EP89118173A patent/EP0362742B1/en not_active Expired - Lifetime
- 1989-09-30 DE DE58908798T patent/DE58908798D1/en not_active Expired - Fee Related
- 1989-10-05 NO NO893972A patent/NO176324C/en unknown
- 1989-10-05 DK DK490989A patent/DK170808B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NO176324C (en) | 1995-03-15 |
| NO893972D0 (en) | 1989-10-05 |
| FI89878B (en) | 1993-08-31 |
| FI894300A (en) | 1990-04-07 |
| ES2065964T3 (en) | 1995-03-01 |
| DK170808B1 (en) | 1996-01-22 |
| DK490989D0 (en) | 1989-10-05 |
| FI894300A0 (en) | 1989-09-12 |
| ATE115900T1 (en) | 1995-01-15 |
| EP0362742A2 (en) | 1990-04-11 |
| NO893972L (en) | 1990-04-09 |
| EP0362742A3 (en) | 1992-02-26 |
| DK490989A (en) | 1990-04-07 |
| DE3834026A1 (en) | 1990-04-12 |
| DE58908798D1 (en) | 1995-02-02 |
| FI89878C (en) | 1993-12-10 |
| EP0362742B1 (en) | 1994-12-21 |
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