CN102248569B - Oriented shaving box board and machining process thereof - Google Patents

Oriented shaving box board and machining process thereof Download PDF

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Publication number
CN102248569B
CN102248569B CN2011102051841A CN201110205184A CN102248569B CN 102248569 B CN102248569 B CN 102248569B CN 2011102051841 A CN2011102051841 A CN 2011102051841A CN 201110205184 A CN201110205184 A CN 201110205184A CN 102248569 B CN102248569 B CN 102248569B
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CN
China
Prior art keywords
boxboard
wood shavings
panel
base plate
board
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CN2011102051841A
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Chinese (zh)
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CN102248569A (en
Inventor
王道江
邵学粉
刘小兵
步正祥
刘年祥
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江苏快乐木业集团有限公司
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Priority to CN2011102051841A priority Critical patent/CN102248569B/en
Publication of CN102248569A publication Critical patent/CN102248569A/en
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Publication of CN102248569B publication Critical patent/CN102248569B/en

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Abstract

The invention provides an oriented shaving box board and a machining process thereof, relating to a wood board and a machining process thereof. The oriented shaving box board has the advantages of high strength, high dimension precision, attractive appearance and lower cost while being compared with logs and is formed by bonding and pressurizing a panel, a core board and a bottom board in sequence, wherein the core board is in an oriented shaving board structure; and the panel and the bottom board are formed by 2-6 layers of single boards. The machining process provided by the invention comprises the following step of: a pressurizing and molding procedure: pressing in an environment with pressure of 120-9000 Pa and temperature of 230-280 DEG C. According to the invention, after being mold-pressed in a vacuum environment at high temperature (230-280 DEG C which is slightly higher than a fire point of shavings), the shavings cannot combust due to the vacuum environment and can be carbonized to a low degree so that the core board has the advantages of better compactness and higher strength and hardness as a whole. The oriented shaving box board provided by the invention is a novel structured board material with high additional value of the product; small diameter wood and fast growth wood are sufficiently adopted; the utilization rate of the resources is increased; and the broad prospect is obtained.

Description

A kind of directed wood shavings boxboard and processing technology thereof
Technical field
The present invention relates to a kind of wooden boards and processing technology thereof, relate in particular to a kind of high strength, high-hardness plate and processing technology thereof that is applicable to container, heavy packages case.
Background technology
Container, heavy packages case inside generally need install interior boxboard additional.Adopted log board as boxboard mostly, on the one hand, the border because container, heavy packages case are are often come in and gone out, various countries are some insects immigrations that prevent in the log in the past, and inspection is very strict, delays the haul-cycle time; On the other hand, log resource is rare, and cost is expensive, makes the whole cost of container increase; And, even if log has carried out preprocessing, distortion still appears easily.
The 2008.12.31. of State Intellectual Property Office discloses portion: publication number CN101332614A; The patented technology of title " burnishing surface wood oriented structure chipboard and its Manufacturing approach and use " has been introduced burnishing surface wood oriented structure chipboard and preparation method thereof, purposes in detail.It is more coarse, uneven in order to solve the OSB surface ratio, the problem that the secondary operations production cost improves, provide a kind of by surface layer, sandwich layer, bottom is sticking and form, core structure is wood oriented structure chipboard (OSB), surface layer and bottom are wooden fines layers.Burnishing surface wood oriented structure chipboard according to this technology is processed can directly be used for supporting plate, Non-skid floor and building panels such as container bottom board, platform floor, industrial base plate, platform base plate, pin hand.
Summary of the invention
The present invention is directed to above problem, provide that a kind of intensity is high, dimensional accuracy is high, attractive in appearance, and with respect to lower-cost directed wood shavings boxboard of log and processing technology thereof.
Technical scheme of the present invention is: be made up of the bonding pressurization of panel, central layer and base plate successively, said central layer is the oriented wood chipboard structure, and said panel and base plate are made up of 2 ~ 6 layers of veneer.
Said boxboard general thickness is 28-35mm; Said veneer thickness is 0.8 ~ 2.0mm.
Top layer is clone's veneer in said panel and the base plate.
First kind of processing technology of the present invention may further comprise the steps:
1), central layer is made:
A), the section of timber or other lignocellulose plant fibre raw material, be wood shavings;
B), during wood shavings are laid in mould along the boxboard orientated lengthwise, applying glue again;
C), extrusion forming, make central layer;
2), to press grain direction successively staggered, fit dried panel and base plate, wherein top layer panel is consistent with the boxboard length direction with bottom base plate grain direction, makes said boxboard;
Said step c), extrusion forming operation are to be in to suppress in pressure 120 ~ 9000Pa, temperature 230-280 ℃ the environment to form.
Under same design; Another kind of processing technology of the present invention; May further comprise the steps: the positive and successively bonding veneer of bottom surface difference at central layer; The central layer front is bonded with the semi-finished product slab that panel, base plate are bonded with base plate, then said slab is inserted in pressure 120 ~ 9000Pa, temperature 230-280 ℃ the environment and suppress.
The present invention is owing to make central layer in mould, make the thickness requirement up to specification of sheet material.Of paramount importancely be, the present invention adopts renewable timber or other lignocellulose raw material as wood shavings, and its cost is extremely low, meets utilization of resources requirement.But generally speaking, renewable timber and other lignocellulose raw material hardness are low, density is little, even if the central layer thickness of processing reaches 15-20mm, its resistance to compression, warping resistance intensity are also lower.After the present invention adopted and carries out mold pressing under the vacuum environment high temperature (230-280 ℃, a little more than the burning-point of wood shavings), owing to be in vacuum environment, wood shavings can not burn, and the carbonization of low degree can occur, made that the whole packing of central layer is better, and intensity, hardness are higher.The present invention is a kind of new structure class sheet material, and added value of product is high; Make full use of small dimension wood, fast growing wood, improve resource utilization, its wide prospect is arranged.
Description of drawings
Fig. 1 is a structural representation of the present invention
1 is panel among the figure, the 2nd, and central layer, 2a are the wood shavings end faces, and 2b is the wood shavings end faces, and 2c is the wood shavings sides, the 3rd, base plate.
The specific embodiment
The present invention is as shown in Figure 1, is made up of panel 1, central layer 2 and base plate 3 bonding pressurizations successively, and said central layer 2 is the oriented wood chipboard structure, and said panel 1 is made up of 2 ~ 6 layers of veneer with base plate 3.
Said boxboard general thickness is 28-35mm; Said veneer thickness is 0.8 ~ 2.0mm.
Top layer is clone's veneer in said panel 1 and the base plate 3; Inferior skin also can adopt clone's veneer.
The veneer of other level is generally selected in assortments such as You Jiali, horse traction silk, pine, birch, eucalyptus, glue wood, fast growing wood.
Clone a little less than the wooden gloss, do not have special flavour, the resin smell is often arranged; Texture is straight usually, and structure is slightly thick; Slightly evenly; Natural defect seldom; Heavy in the timber weight to slightly, bronzing.Outstanding markon, i.e. eucalyptus.The horse traction silk for a kind of wood grain is attractive in appearance, has the timber of certain degree of hardness.
First kind of processing technology of the present invention may further comprise the steps:
1), central layer is made:
A), the section of timber or other lignocellulose plant fibre raw material, be wood shavings;
B), during wood shavings are laid in mould along the boxboard orientated lengthwise, applying glue again;
C), extrusion forming, make central layer;
2), to press grain direction successively staggered, fit dried panel and base plate, wherein top layer panel is consistent with the boxboard length direction with bottom base plate grain direction, makes said boxboard;
Said step c), extrusion forming operation are to be in to suppress in pressure 120 ~ 9000Pa, temperature 230-280 ℃ the environment to form.(pressure when wood shavings are compressed to central layer is: 1.5-4MPa) 5-20 minute in this link, to keep certain molding pressure.Subsequently, the pressure when on central layer, covering the pressure veneer is 1-3MPa.
Under same design; Another kind of processing technology of the present invention; May further comprise the steps: the positive and successively bonding veneer of bottom surface difference at central layer; The central layer front is bonded with the semi-finished product slab that panel, base plate are bonded with base plate, then said slab is inserted in pressure 120 ~ 9000Pa, temperature 230-280 ℃ the environment and suppress.(pressure when integral body is suppressed is: 1-3MPa in this link, to keep certain molding pressure; ) 8-25 minute.
Need to prove about temperature problem: the wood shavings of different assortments, under the situation of different aridity, burning-point is different.During concrete operations, need to confirm burning-point, formulate concrete temperature according to burning-point then, generally better than the high 5-30 of burning-point ℃ effect.When in practice the Aspen wood shavings with some humidity being heated to 290 ℃, changing does not appear in its outward appearance, negative phenomenas such as monolithic wood shavings embrittlement do not occur.
Boxboard through processes of the present invention; Temperature is higher than existing technology during its extrusion forming, even reaches more than the timber burning-point, but owing to adopted oxygen-free environment to heat, add molding pressure; Make density, the hardness of finished product improve, compression strength and warping resistance intensity increase.Simultaneously can kill harmful substance, the parasite in the timber effectively, meet the import and export quarantine request.

Claims (4)

1. the processing technology of a directed wood shavings boxboard, said directed wood shavings boxboard is made up of the bonding pressurization of panel, central layer and base plate successively, and said central layer is the oriented wood chipboard structure, and said panel and base plate are made up of 2 ~ 6 layers of veneer respectively; May further comprise the steps:
1), central layer is made:
A), the section of timber or other lignocellulose plant fibre raw material, be wood shavings;
B), during wood shavings are laid in mould along the boxboard orientated lengthwise, applying glue again;
C), extrusion forming, make central layer;
2), to press grain direction successively staggered, fit dried panel and base plate, wherein top layer panel is consistent with the boxboard length direction with bottom base plate grain direction, makes said boxboard;
It is characterized in that said step c), extrusion forming operation are to be in to suppress in pressure 120 ~ 9000Pa, temperature 230-280 ℃ the vacuum environment to form; Aforementioned temperature is than the high 5-30 of burning-point ℃ of said wood shavings, makes the carbonization of wood shavings low degree.
2. the processing technology of a kind of directed wood shavings boxboard according to claim 1 is characterized in that, said boxboard general thickness is 28-35mm; Said veneer thickness is 0.8 ~ 2.0mm.
3. the processing technology of a kind of directed wood shavings boxboard according to claim 1 is characterized in that, in the said panel in top layer and the base plate bottom be clone's veneer.
4. the processing technology of a directed wood shavings boxboard, said directed wood shavings boxboard is made up of the bonding pressurization of panel, central layer and base plate successively, and said central layer is the oriented wood chipboard structure, and said panel and base plate are made up of 2 ~ 6 layers of veneer respectively; May further comprise the steps: the positive and successively bonding veneer of bottom surface difference at central layer; Form the central layer front and be bonded with the semi-finished product slab that panel, bottom surface are bonded with base plate; It is characterized in that, then said slab is inserted in pressure 120 ~ 9000Pa, temperature 230-280 ℃ the vacuum environment and suppress; Aforementioned temperature is than the high 5-30 of burning-point ℃ of wood shavings in the said oriented wood chipboard structure, makes the carbonization of wood shavings low degree.
CN2011102051841A 2011-07-21 2011-07-21 Oriented shaving box board and machining process thereof CN102248569B (en)

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Application Number Priority Date Filing Date Title
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CN102248569A CN102248569A (en) 2011-11-23
CN102248569B true CN102248569B (en) 2012-11-28

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102909762A (en) * 2012-10-19 2013-02-06 茂友木材股份有限公司 Production method for bamboo-wood composite board
CN102909772A (en) * 2012-11-06 2013-02-06 江苏快乐木业集团有限公司 Directional shaving board and manufacturing method thereof
CN102886808A (en) * 2012-11-06 2013-01-23 江苏快乐木业集团有限公司 Oriented shaving board and preparation method thereof
CN102896683A (en) * 2012-11-06 2013-01-30 江苏快乐木业集团有限公司 Directed wood shaving board and preparation method thereof
CN102922586A (en) * 2012-11-06 2013-02-13 江苏快乐木业集团有限公司 Oriented strand board and preparation method thereof
CN103072172B (en) * 2012-12-13 2013-12-11 江苏快乐木业集团有限公司 Boxboard based on high-density oriented strand board and processing method thereof
CN106042124B (en) * 2016-06-08 2018-06-29 安徽汇力建筑工程有限公司 A kind of light thermal-insulation curtain wall material manufacturing method
CN107471392A (en) * 2017-08-25 2017-12-15 安徽智博新材料科技有限公司 A kind of particieboard of low burst size of methanal and preparation method thereof

Citations (4)

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Publication number Priority date Publication date Assignee Title
CN1067399A (en) * 1991-06-05 1992-12-30 蛇口招商无胶人造板新技术有限公司 Lignocellulosic materials is made glue-free artificial board's commercial run and equipment
CN1245854A (en) * 1998-06-26 2000-03-01 住友化学工业株式会社 Processed timber
CN1583526A (en) * 2004-05-25 2005-02-23 河南黄河林业股份有限公司 Baseboard plywood of high-intensity composite container
CN202137819U (en) * 2011-07-21 2012-02-08 江苏快乐木业集团有限公司 Oriented shaving box board

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1025082C2 (en) * 2003-12-19 2005-06-21 Hakhold B V Shelf for indoor use.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1067399A (en) * 1991-06-05 1992-12-30 蛇口招商无胶人造板新技术有限公司 Lignocellulosic materials is made glue-free artificial board's commercial run and equipment
CN1245854A (en) * 1998-06-26 2000-03-01 住友化学工业株式会社 Processed timber
CN1583526A (en) * 2004-05-25 2005-02-23 河南黄河林业股份有限公司 Baseboard plywood of high-intensity composite container
CN202137819U (en) * 2011-07-21 2012-02-08 江苏快乐木业集团有限公司 Oriented shaving box board

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