CS239196B1 - Method of beams and rafters sticking - Google Patents
Method of beams and rafters sticking Download PDFInfo
- Publication number
- CS239196B1 CS239196B1 CS841321A CS132184A CS239196B1 CS 239196 B1 CS239196 B1 CS 239196B1 CS 841321 A CS841321 A CS 841321A CS 132184 A CS132184 A CS 132184A CS 239196 B1 CS239196 B1 CS 239196B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- beams
- pressing
- phenol
- wire
- minutes
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 241001669679 Eleotris Species 0.000 claims description 7
- 241000446313 Lamella Species 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 5
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 abstract description 11
- 230000001070 adhesive effect Effects 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
Vynález sa týká sposobu lepenia nosníkov a podvalov s použitím lepidla na bázi fenolu, pričom medzi spojované lamely sa vsunie drótená sieť a takto připravený podval sa zlisuje tlakom 0,3 až 1 MPa po dobu 5 až 15 minút a súčasne so začatím lisovania sa do drotenej siete privedie elektrický prúd o příkone 100 až 300 A o napatí 10 až 24 V, ktorý ju ohřeje po dobu lisovania na teplotu 100 až 200 °C.The invention relates to a method of bonding beams and sleepers using a phenol-based adhesive inserting between the lamellae to be joined the wire net, and so prepared it with a pressure of 0.3 to 1 MPa for 5 to 15 minutes minutes and at the same time as pressing is started the wire net will bring the electric current o 100 to 300 A power 10 to 24 V which heats it for the time of pressing to temperature 100 to 200 ° C.
Description
Vynález sa týká nového spósobu lepenia nosníkov a podvalov pomocou zohriatej dró-; tenej siete. l’The invention relates to a novel method of bonding beams and sleepers by means of heated wire ; network. l '
V súčasnosti sa pri výrobě nosníkov na vonkajšiu expozíciu výlučné používá fenolrezorcínové lepidlo FR-63. Spoj vytvořený týmto lepidlom je tmavý, tvrdý a přitom pružný s tepelnou stálosťou do 120 °C, s velmi d-obrou odolnostou voči vodě, rozpúšťadlám a mikroorganizmom. Týmto lepidlom sa lepia aj výhybkové podvaly. Jeho nevýhodou je vysoká cena. ánásobne vyššia ako za fenolové lepidlá a pri jeho výrobě je nutný dovoz jednotlivých komponentov z nesocialistických štátov. Nevýhodou pri použití lepidla FR-!63 je aj dlhý čas vytvrdzovania až 6 hodin.Currently, the use of phenolresorcinol adhesive FR-63 is exclusively used in the manufacture of external exposure beams. The bond formed by this adhesive is dark, hard and yet flexible with a thermal stability of up to 120 ° C, with very dexterous resistance to water, solvents and microorganisms. Switch glue is also glued with this adhesive. Its disadvantage is the high price. higher than phenolic adhesives and its production requires import of individual components from non-socialist states. A disadvantage of using FR-63 is also the long curing time of up to 6 hours.
Uvedené nedostatky lepenia nosníkov a podvalov sú odstránené spósobom podía vynálezu a jeho- podstata spočívá v tom, že na zlepovanú vrchnú, strednú a spodnú lamelu sa nanesie fenolové lepidlo, pričom medzi spojované lamely sa vsunie drótená sieť a takto připravený podval sa zlisuje tlakom 0,3 až 1 MPa po dobu 5 až 15 minút a súčasne so začatím lisovania sa do drótenej siete privedie elektrický prúd o příkone 100 až 300 A o napatí 10 až 24 V, ktorý ju ohřeje po dobu lisovania. na teplotu 100 až 200 °C.The above-mentioned drawbacks of gluing of beams and sleepers are eliminated by the method according to the invention, which consists in that phenolic glue is applied to the glued top, middle and bottom lamellas, a wire net is inserted between the lamellas to be joined and compressed sleeper is pressed. 3 to 1 MPa for 5 to 15 minutes, and at the same time as pressing begins, a wire of 100 to 300 A with a voltage of 10 to 24 V is supplied to the wire grid, which heats it during the pressing. to 100 to 200 ° C.
Výhoda použitia lepidla na bázi fenolu F 20, ktoré sa používá pri výrobě vodovzdorných preglejok, pri použití na lepenie nosníkov a podvalov, sa prejaví vylúčením zahraničného dovozu komponentov, pričom cena fenolového lepidla je čtvrtinová oproti lepidlu FRJ63. Súčasne sa skráti čas vytvr' dzovaiiia'lepidla F 20 na 10 minút oproti šiestim hodinám pri použití lepidla FR-63.The advantage of using phenol-based adhesive F 20, which is used in the manufacture of water-resistant plywood, when used for gluing beams and sleepers, is to eliminate foreign imports of components, while the price of phenolic adhesive is one-fourth compared to FR J 63. The F 20 adhesive was applied for 10 minutes versus six hours using FR-63 adhesive.
Na priloženom výkrese je znázorněná skladba podvalu z troch lamiel nanesených fenolovým lepidlom a dvoma drótemými sieťami.The attached drawing shows the sleeper composition of three lamellas applied with phenol glue and two wire meshes.
SpĎsob lepenia sa prevádza tak, že, na jednu stranu spodnej lamely 7 a stredovej lamely 4 alebo 1 a 4 sa nanesie lepidlo F 20 na bázi fenolu v množstve 300 g/m2 vo vrstvě 3 a 6. Medzi jednotlivé lamely sá vloží drótená sieť 2 a 5 so šesťstranmými okami, strana oka 8 mm z ocelového drótu prierezu 0 0,63 mm akosti 11 300 podía ČSN 15 3160, táto sieť mierne prečnieva konce podvalu.The gluing method is carried out by applying on one side of the lower lamella 7 and the center lamella 4 or 1 and 4 a phenol-based adhesive F 20 in an amount of 300 g / m 2 in layers 3 and 6. A wire mesh is inserted between the individual lamellae 2 and 5 with hexagonal meshes, mesh side 8 mm of steel wire of cross section 0 0.63 mm of quality 11 300 according to ČSN 15 3160, this net slightly overlaps the ends of the sleeper.
Takto připravený podval sa zlisuje tlakom 0,5 MPa a na prečnievajúcu sieť 2 a 5 sa pomocou elektrod privádza elektrický prúd o příkone 180 A o napatí 12 V. Velkost zvoleného lisovacieho tlaku a příkonu elektrického prúdu je závislý od použitého druhu dřevin a dížky (plochy] lepeného nosníka — podvalu.The sleeper prepared in this way is compressed at a pressure of 0.5 MPa and the overlapping net 2 and 5 is supplied with electrodes with a power of 180 A and a voltage of 12 V. The size of the selected pressing pressure and power input depends on the type of wood and length ] glued beam - sleeper.
Přechodem elektrického prúdu sa drůtená sieť ohrieva na teplotu 150 °C, pričom výška teploty sa udržiava tyristorovou reguláciou prúdu o výkone 300 V. Po uplynutí ohřevu a vytvrdnutí lepidla (10 minút) sa preruší elektrický obvod a uvolní lisovací tlak. Drótená sieť sa stane súčasťou podvalu alebo nosníka.By passing the electrical current, the wire net is heated to 150 ° C, maintaining the temperature at 300 V by thyristor regulation. After heating and curing of the adhesive (10 minutes), the electrical circuit is interrupted and the compression pressure released. The wire mesh becomes part of the sleeper or beam.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS841321A CS239196B1 (en) | 1984-02-27 | 1984-02-27 | Method of beams and rafters sticking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS841321A CS239196B1 (en) | 1984-02-27 | 1984-02-27 | Method of beams and rafters sticking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS132184A1 CS132184A1 (en) | 1985-05-15 |
| CS239196B1 true CS239196B1 (en) | 1985-12-16 |
Family
ID=5347293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS841321A CS239196B1 (en) | 1984-02-27 | 1984-02-27 | Method of beams and rafters sticking |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS239196B1 (en) |
-
1984
- 1984-02-27 CS CS841321A patent/CS239196B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS132184A1 (en) | 1985-05-15 |
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