SU642211A1 - Particle boad manufacturing method - Google Patents

Particle boad manufacturing method

Info

Publication number
SU642211A1
SU642211A1 SU772484780A SU2484780A SU642211A1 SU 642211 A1 SU642211 A1 SU 642211A1 SU 772484780 A SU772484780 A SU 772484780A SU 2484780 A SU2484780 A SU 2484780A SU 642211 A1 SU642211 A1 SU 642211A1
Authority
SU
USSR - Soviet Union
Prior art keywords
plates
manufacturing
improve
hot pressing
boad
Prior art date
Application number
SU772484780A
Other languages
Russian (ru)
Inventor
Валерий Афанасьевич Баженов
Людмила Васильевна Мельникова
Мария Николаевна Мчедлишвили
Original Assignee
Московский Лесотехнический Институт
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Московский Лесотехнический Институт filed Critical Московский Лесотехнический Институт
Priority to SU772484780A priority Critical patent/SU642211A1/en
Application granted granted Critical
Publication of SU642211A1 publication Critical patent/SU642211A1/en

Links

Description

лученных образцов плит от номинального значени  составл ют 0,01 мм; предел прочности на статический изгиб 210 кгс/см; шероховатость поверхности плит 30 мкм.plate samples from a nominal value of 0.01 mm; tensile strength for static bending 210 kgf / cm; surface roughness of plates 30 microns.

Предложенный способ позвол ет получать древесные плиты с незначительной ше роховатостью поверхности, малыми отклонени ми по толщине и высокими показател ми на статический изгиб. Это дает возможность примен ть данные плиты дл  отделки , исключа  операцию шлифовани .The proposed method allows to produce wood boards with a slight roughness of the surface, small deviations in thickness and high rates of static bending. This makes it possible to use these plates for finishing, excluding the grinding operation.

Кроме того, за счет достигаемой здесь высокой пластификации можно использовать грубые древесные частицы , что позвол ет снизить энергозатраты иа их изготовление .In addition, due to the high plasticization achieved here, coarse wood particles can be used, which makes it possible to reduce the energy consumption and make them.

Claims (2)

1. Способ изготовлени  древесностружечных плит, включают ни обработку древесной1. A method of manufacturing particle boards, does not include wood processing массы дл  наружных слоев пластифицирующим веществом, формирование ковра и гор чее прессование, отличающийс  тем, что, с целью повышени  качества и улучшени  физико-механических свойств плит, в качестве пластифицирующего вещества используют водный раствор мочевины концентрацией 35-40% в количестве 18-20% от веса древесной массы.masses for the outer layers of a plasticizing agent, carpet formation and hot pressing, characterized in that, in order to improve the quality and improve the physical and mechanical properties of the plates, an aqueous solution of urea with a concentration of 35-40% in an amount of 18-20% is used as a plasticizing agent by weight of wood pulp. 2. Способ по п. I, отличающийс  тем, что гор чее прессование осуществл ют при температуре плит пресса 160- 170°С и выдержке 0,3-0,4 мин на 1 мм толщины готовых плит.2. A method according to claim I, characterized in that the hot pressing is carried out at a temperature of the press plates of 160-170 ° C and a shutter speed of 0.3-0.4 minutes per 1 mm thickness of the finished plates. Источники информации, прин тые во внимание при экспертизеSources of information taken into account in the examination 1.Модификаци  древесины. «Зинатне, Рига, 1967, с. 129.1. Modification of wood. “Zinatne, Riga, 1967, p. 129. 2.Авторское свидетельство СССР № 246026, кл. В 29 J 5/00, 1964.2. USSR author's certificate number 246026, cl. B 29 J 5/00, 1964.
SU772484780A 1977-05-16 1977-05-16 Particle boad manufacturing method SU642211A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772484780A SU642211A1 (en) 1977-05-16 1977-05-16 Particle boad manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772484780A SU642211A1 (en) 1977-05-16 1977-05-16 Particle boad manufacturing method

Publications (1)

Publication Number Publication Date
SU642211A1 true SU642211A1 (en) 1979-01-15

Family

ID=20708491

Family Applications (1)

Application Number Title Priority Date Filing Date
SU772484780A SU642211A1 (en) 1977-05-16 1977-05-16 Particle boad manufacturing method

Country Status (1)

Country Link
SU (1) SU642211A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4528309A (en) * 1978-04-28 1985-07-09 Ab Casco Method for the production of cellulosic board materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4528309A (en) * 1978-04-28 1985-07-09 Ab Casco Method for the production of cellulosic board materials

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