SU301284A1 - LIBRARY I - Google Patents
LIBRARY IInfo
- Publication number
- SU301284A1 SU301284A1 SU1371793A SU1371793A SU301284A1 SU 301284 A1 SU301284 A1 SU 301284A1 SU 1371793 A SU1371793 A SU 1371793A SU 1371793 A SU1371793 A SU 1371793A SU 301284 A1 SU301284 A1 SU 301284A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- plates
- carpet
- fire
- library
- pressing
- Prior art date
Links
- 238000000034 method Methods 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 239000011093 chipboard Substances 0.000 description 3
- 235000019749 Dry matter Nutrition 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000001184 potassium carbonate Substances 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003068 static Effects 0.000 description 1
- 230000002522 swelling Effects 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Description
Известны способы изготовлени огнезащищенных древесностружечных плит путем приготовлени стружки, смешивани со св зующим , содержащим добавки антипиренов, формовани ковра с последующим гор чим прес .сованием.Methods are known for making fireproof chipboards by preparing chips, mixing with a binder, containing flame retardant additives, forming a carpet, followed by hot pressing.
Недостатком известного способа вл етс повышенный расход антипиренов и ухудшение физико-механических показателей плит.The disadvantage of this method is the increased consumption of flame retardants and the deterioration of the physico-mechanical properties of the plates.
Целью насто щего изобретени вл етс улучшение физико-механических показателей огнезащищенных плит с одновременной интенсификацией процесса прессовани и упрощением технологического процесса.The aim of the present invention is to improve the physicomechanical characteristics of fire-protected plates with simultaneous intensification of the pressing process and simplification of the technological process.
Достигаетс это тем, что на поверхность сформованного стружечного ковра нанос т 30-40%-ный раствор углекислого кали в количестве 40-60 г абсолютно сухого вещества на 1 ж поверхности, после чего сформованный ковер подвергают прессованию при температуре 175-180° С.This is achieved by applying a 30-40% solution of potassium carbonate in an amount of 40-60 g of absolutely dry matter per 1 g of the surface onto the surface of the chipboard carpet, after which the molded carpet is pressed at a temperature of 175-180 ° C.
Полученные плиты имеют следующие физико-механические показатели: Прочность при статическом изгибе, KejCM -170,5The plates obtained have the following physicomechanical indicators: Static Flexural Strength, KejCM -170.5
Объемный вес, ,66Volumetric weight,, 66
Набухание по толщине, %24,2Thickness swelling,% 24.2
Возгорание по методу «огневой трубы ;Fire according to the fire tube method;
а)врем самосто тельного горени , секОa) time of independent burning, sO
б)врем самосто тельного тлени , секОb) time of self-smoldering, seko
в)потер веса при сжигании , %6,3c) weight loss during combustion,% 6.3
Предмет изобретени Subject invention
Способ изготовлени огнезащищенных плит, преимущественно древесностружечных, путемThe method of manufacture of fire-protected plates, mainly chipboard, by
изготовлени стружки, смешивани со св зующим и формовани ковра с последующим гор чим -прессованием, отличающийс тем, что, с целью повышени физико-механических показателей плит, упрощени технологическогоmaking chips, blending with a binder, and forming a carpet followed by hot-pressing, characterized in that, in order to improve the physical and mechanical performance of the plates, to simplify the technological
процесса и интенсификации процесса лрессовани , на поверхность сформованного стружечного ковра нанос т 30-40%-ный раствор углекислого кали в количестве 40-60 г абсолютно сухого вещества на 1 лг поверхностиof the process and intensification of the lassation process, a 30-40% solution of potassium carbonate in the amount of 40-60 g of absolutely dry matter per 1 lg of surface is applied to the surface of the formed particleboard carpet
плит.plates
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU301284A1 true SU301284A1 (en) |
Family
ID=
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4142438A1 (en) * | 1991-12-20 | 1993-06-24 | Baehre & Greten | PLATE AND METHOD FOR THE PRODUCTION THEREOF |
| US5902442A (en) * | 1993-05-17 | 1999-05-11 | Borden Chemical, Inc. | Method for bonding lignocellulosic material with phenol-formaldehyde resin and carbon dioxide |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4142438A1 (en) * | 1991-12-20 | 1993-06-24 | Baehre & Greten | PLATE AND METHOD FOR THE PRODUCTION THEREOF |
| US5902442A (en) * | 1993-05-17 | 1999-05-11 | Borden Chemical, Inc. | Method for bonding lignocellulosic material with phenol-formaldehyde resin and carbon dioxide |
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