SU243181A1 - - Google Patents
Info
- Publication number
- SU243181A1 SU243181A1 SU1173049A SU1173049A SU243181A1 SU 243181 A1 SU243181 A1 SU 243181A1 SU 1173049 A SU1173049 A SU 1173049A SU 1173049 A SU1173049 A SU 1173049A SU 243181 A1 SU243181 A1 SU 243181A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- wood
- dried
- moisture content
- drying
- compacted
- Prior art date
Links
- 239000002023 wood Substances 0.000 description 9
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005056 compaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 241000219495 Betulaceae Species 0.000 description 1
- 235000018185 birch Nutrition 0.000 description 1
- 235000018212 birch Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
СПОСОБ ИЗГОТОВЛЕНИЯ ДРЕВЕСНЫХ ПЛАСТИКОВMETHOD OF MAKING WOOD PLASTICS
Известен способ изготовлени древесных пластиков путем пропитки древесины водным или газообразным аммиаком с последующим уплотнением и сушкой. Недостатком этого способа вл етс длительность процесса сушки.A known method for producing wood plastics by impregnating wood with aqueous or gaseous ammonia, followed by compaction and drying. The disadvantage of this method is the duration of the drying process.
Описываемый способ изготовлени древесных пластиков отличаетс от известного тем, что древесину, предварительно высушенную до влажности 10-30%, пропитывают аммиаком , затем уплотн ют При удельном давлении 60-120 кг/см и вь1сушивают до влажности 3-5%. Такой процесс обработки сокращает врем сушки древесины.The described method of making wood plastics differs from the known one in that the wood, previously dried to a moisture content of 10-30%, is impregnated with ammonia, then compacted. At a specific pressure of 60-120 kg / cm and dried to a moisture content of 3-5%. This process reduces the drying time of wood.
Уплотнение происходит в прессформах без нагрева.Compaction takes place in molds without heating.
Пример. Березовые заготовки размером 305x100X75 мм, предварительно высушенныеExample. Birch blanks of 305x100X75 mm, pre-dried
до влажности 10-12%, обрабатывают газообразным аммиаком в течение 48 час. После этого заготовки уплотн ют при давлении около 100 кг/слс, затем сушат в течение 12 час.to a moisture content of 10-12%, treated with gaseous ammonia for 48 hours. After that, the blanks are compacted at a pressure of about 100 kg / sls, then dried for 12 hours.
Плотность полученного пластика около 1,2 г/слга.The density of the obtained plastic is about 1.2 g / slg.
Предмет изобретени Subject invention
Способ изготовлени древесных пластиков путем пропитки древесины водны.м или газообразным аммиаком с последуюш,им уплотнением и сушкой, отличающийс тем, что, с целью интенсификации процесса, пропитке подвергают древесину, предварительно высушекную до влажности 10-30%, затем уплотн ют при удельном давлении 60-120 кг/см и высушивают до влажности 3-5%.A method of making wood plastics by impregnating wood with water or ammonia gas followed by compaction and drying, characterized in that, in order to intensify the process, wood that has been previously dried to a moisture content of 10-30% is impregnated, then compacted at a specific pressure 60-120 kg / cm and dried to a moisture content of 3-5%.
Publications (1)
Publication Number | Publication Date |
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SU243181A1 true SU243181A1 (en) |
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