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CN1027825C - Reinforced composite fibre form-board and making method thereof - Google Patents

Reinforced composite fibre form-board and making method thereof Download PDF

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Publication number
CN1027825C
CN1027825C CN 91105357 CN91105357A CN1027825C CN 1027825 C CN1027825 C CN 1027825C CN 91105357 CN91105357 CN 91105357 CN 91105357 A CN91105357 A CN 91105357A CN 1027825 C CN1027825 C CN 1027825C
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CN
China
Prior art keywords
fiberboard
kraft
hot pressing
board
mentioned
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Expired - Fee Related
Application number
CN 91105357
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Chinese (zh)
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CN1058630A (en
Inventor
何志能
金保祥
叶剑钧
朱瑞东
向涌泉
吴金海
王德坤
周金发
沈国强
巫逸民
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QUZHOU TIMBER MILL
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QUZHOU TIMBER MILL
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Priority to CN 91105357 priority Critical patent/CN1027825C/en
Publication of CN1058630A publication Critical patent/CN1058630A/en
Application granted granted Critical
Publication of CN1027825C publication Critical patent/CN1027825C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The present invention provides a reinforced composite fiber form board and a manufacture method thereof, which is characterized in that the smooth surface of a fiber board is roughened at first; the roughened fiber board and kraft paper are respectively coated with glue, dried, combined into blanks, laid with films, processed by thermal pressure and shaped. The form board produced by method has the advantages of high strength, difficult deformation, low cost, etc., and simultaneously overcomes the disadvantage of large difference of vertical and horizontal performance of the existing form board; after a reinforced layer is added, the present invention has good performance. The present invention has simple process without additional equipment, and can be produced by the existing production equipment of artificial boards.

Description

Reinforced composite fibre form-board and making method thereof
The present invention relates to a kind of template, exactly is the template (being called for short the FB composite shuttering) that a kind of fiberboard is composited.
Template is widely used in the construction of various buildings, and before the present invention made, template had steel template, plywood form, high-strength bamboo glue pattern plate.Wherein plywood form is the most well-known with the Visa template of Finland, has that breadth is big, access times are many, characteristics such as intensity height.Visa template and homemade plywood form exist all in length and breadth that performance differs greatly, the more high defective of cost, and homemade plywood form poor performance is used wideless.High-strength bamboo blanket template is domestic a kind of high strength template of exploitation recently, function admirable, but, be difficult to comparatively fast form large-scale production because of production equipment does not catch up with and the more high factor of cost.
It is higher, not yielding to the purpose of this invention is to provide a kind of intensity, fiber composite template and manufacture method thereof that cost is low.
The objective of the invention is to be achieved through the following technical solutions:
At first the fiberboard with one of base material carries out the sand hair, and the sand face paraffin layer that delusters makes fiberboard thickness even simultaneously.Coat phenolic resin glue or other water-fast glue in its positive and negative behind the sand hair, the solid content by 45% calculates, the about 300-500g/m of spread 2, dry after the gluing.With two kraft impregnated melamine formaldehyde resin adhesive or other water-fast glue of base material, spread 90-100%, volatilization content 6-12%.Dried fiberboard and kraft are spread mould according to the specification assembly of template, after the fiber composite template that gets product is handled in hot pressing and typing.
Usually there is water to exist in the template environment for use, so select water-fast glue for use.
Require during assembly shop mould table, bottom fiber plate must light towards outside, the mid portion fiberboard allows positive and negative placement, but must guarantee the up-down structure symmetry, promptly requiring the fiberboard number is even number, up-down structure symmetry lamination.This is that then finished product will cause owing to the latent stress of itself and produce buckling deformation in the use because the asymmetry of fiberboard positive and negative adopts odd number or asymmetric lamination if spread mould, and influence is used.
For strengthening the intensity of template, enhancement layer can place between any two fiberboards symmetrically during the mould of shop.Enhancement layer can be that bamboo mat, wire lath etc. have the various materials that strengthen effect.When enhancement layer is the aperture braid, should carry out impregnation before the assembly, enhancement layer is the thin material of macropore (as wire gauze), can not applying glue.
Hot pressing temperature is 135~170 ℃, and hot pressing pressure is 3.6~5.0MPa, is incubated timing, insulation 10-30min since 135 ℃.Hot pressing temperature will realize the curing of glue if be lower than 135 ℃, and is then consuming time longer, and can not solidify fully, causes properties of product to reduce; If temperature is higher than 170 ℃, then very easily cause the top layer glue to solidify at short notice, and because the fiberboard heat conductivility is not good enough, the sandwich layer glue is still uncured, treat the sandwich layer adhesive curing, then the curing glue on top layer is at high temperature aging, causes the hot pressing defective effect product quality of top layer or sandwich layer.The control of hot pressing time also can cause similar result.Hot pressing pressure is lower than 3.6MPa, and the kraft spread is lower than 90%, and phenomenon appears spending in vain in product surface, also will influence product quality.Hot pressing pressure is too high, will destroy the intensity of fiberboard itself, and product quality also can descend.
Another key technology of the present invention is that the typing after the hot pressing insulation is handled, and is about to cooling water input hot press, and mold is reduced to below 65 ℃ gradually from hot pressing temperature, and pressure drop stage could guarantee that product is smooth indeformable so then.
Method provided by the present invention, technology is simple, utilize existing Wood-based Panel Production equipment to produce, it is big, not yielding that the template of being produced has a breadth, low cost and other advantages, overcome plywood form and the high-strength bamboo glue pattern plate defective of intensity great disparity in length and breadth, realized vertical and horizontal basis equalization, every performance indications surpass homemade plywood form near the Visa template, as the reinforced composite fibre form-board of 12 * 930 * 2100mm, its MOR 〉=45N/mm 2, modulus of elasticity 〉=500N/mm 2, thickness swelling rate<5%, angularity<0.5%, boiling water boil and did not come unglued in 3 hours etc.
Fig. 1 is four lamination fiber composite template assembly figure.
Fig. 2 is that four laminations add enhancement layer fiber composite template assembly figure.
Fig. 3 is six lamination fiber composite template assembly figure.
Below in conjunction with accompanying drawing the present invention is further described.
Example one: with light facing sand hair, making its thickness simultaneously is 2.9~3.2mm with 4 fibre board use Grinders, and thickness is even.On glue spreader, make its positive and negative two sides coat phenolic resin glue, spread 300g/m then 2(in 45% solid content).With kraft impregnated melamine formaldehyde resin adhesive, spread 90%.Volatile quantity 6-12%.After treating that fiberboard after the gluing dries, carry out assembly shop mould.As shown in Figure 1, at polishing steel plate upper berth last layer kraft (1), be covered with fiberboard (2) again, its light faces down, and symmetry is placed 2 fiberboards then, and fiberboard (2 ') light is spread kraft (1 ') at last towards last placement, presses the polishing steel plate.Push in the hot press that is warming up to about 100 ℃ behind the mould of shop, continue to heat up, 4.2~4.6MPa simultaneously pressurizes, temperature picks up counting when rising to 135 ℃, typing is handled behind the insulation 20min, is about to make mold be cooled to 50 ℃ in the cooling water input hot press, segmentation sheds pressure again, and promptly getting specification is the fiberboard composite shuttering of 11mm.
Example two: with 4 fiberboard light facing sand hairs, and make its thickness even, control thickness is 2.7~3.0mm, coats 420g/m then 2Phenolic resin glue.After treating that the impregnation kraft of the fiberboard of gluing and 95% spread and 2 impregnation bamboo mats that thickness is 1.0mm dry, as Fig. 2 assembly shop mould, fiberboard (2), (2 ') light are towards outer placement, bamboo mat (3) (3 ') is clipped in respectively between fiberboard (2), (4) and fiberboard (2 '), (4 '), the up-down structure symmetry.Push behind the mould of shop in the hot press about 100 ℃, be forced into 3.6~5.0MPa, heat up simultaneously, be warming up to 135 ℃ and pick up counting, insulation in the time of 160 ℃ is behind the hot pressing 15min, logical water quench to 55 ℃, segmentation thereafter sheds pressure, obtains the higher 11mm composite shuttering of intensity.
Example three: with 6 fiberboard light facing sand hairs, make its THICKNESS CONTROL at 3.2~3.6mm, thickness is even.Serve glue spreader, evenly coat 500g/m at its positive and negative 2Phenolic resin glue, kraft dipping modified melamine-formaldehyde resin glue, spread 100%, fiberboard dry assembly shop, back mould, as Fig. 3, fiberboard (2), (2 ') light towards outside, towards last, then fiberboard (3 ') light faces down fiberboard (3) as if light, and fiberboard (4) light faces down, then fiberboard (4 ') light guarantees the up-down structure symmetry towards last.Mold is pushed in the hot press about 100 ℃, be forced into 4.8~5.0MPa, be warming up to 135 ℃ and pick up counting, 170 ℃ of insulations down, hot pressing 20min imports cooling water to make mold be cooled to 60 ℃ thereafter, pressure drop stage more promptly gets the fiberboard composite shuttering of 17mm specification after the release.

Claims (6)

1, a kind of manufacture method of reinforced composite fibre form-board is characterized in that following steps are arranged: a, with behind the fiberboard light facing sand hair is coated with phenolic resin glue and dries at its positive and negative; B, with kraft impregnated melamine formaldehyde resin adhesive; C, the above-mentioned kraft of elder generation's shop one deck cover the above-mentioned fiberboard of one deck again, and make the sand hair side of this fiberboard downward; D, at this above-mentioned fiberboard of even numbered blocks that positive and negative symmetry is set above the fiberboard as mid portion; E, cover the above-mentioned fiberboard of one deck above the mid portion again, and the sand hair side that makes this fiberboard upwards at this; F, repave kraft at last, h, the shop mould of above-mentioned assembly is carried out hot pressing, hot pressing temperature is 135-170 ℃, and hot pressing pressure is 3.6-5.0MPa, picks up counting from 135 ℃, and hot pressing time is 10-30min, and typing is handled after the hot pressing.
2, manufacture method according to claim 1 is characterized in that the fiberboard spread counts 300-500g/m with 45% solid content 2, the kraft spread is 90-100%.
3, manufacture method according to claim 1 is characterized in that it is that mold is cooled to below 65 ℃ that typing is handled, again pressure drop stage.
4, a kind of reinforced composite fibre form-board that uses the described method of claim 1 to make, it comprises fiberboard, kraft, it is characterized in that fiberboard<2 by kraft 〉,<2 ' outside through the one side of sand hair, the fiberboard up-down structure of mid portion is placed symmetrically.
5, template according to claim 4 is characterized in that between any two fiberboards enhancement layer being set symmetrically.
6,, it is characterized in that enhancement layer is the braid that bamboo mat, wire gauze etc. have humidification according to claim 4 or 5 described templates.
CN 91105357 1991-07-31 1991-07-31 Reinforced composite fibre form-board and making method thereof Expired - Fee Related CN1027825C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 91105357 CN1027825C (en) 1991-07-31 1991-07-31 Reinforced composite fibre form-board and making method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 91105357 CN1027825C (en) 1991-07-31 1991-07-31 Reinforced composite fibre form-board and making method thereof

Publications (2)

Publication Number Publication Date
CN1058630A CN1058630A (en) 1992-02-12
CN1027825C true CN1027825C (en) 1995-03-08

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Application Number Title Priority Date Filing Date
CN 91105357 Expired - Fee Related CN1027825C (en) 1991-07-31 1991-07-31 Reinforced composite fibre form-board and making method thereof

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4150815B2 (en) * 2003-01-22 2008-09-17 パノラム・インダストリーズ・インターナショナル・インコーポレイテッド Leather makeup laminate
CN109016041B (en) * 2011-08-26 2022-05-24 塞拉洛克创新股份有限公司 Method for producing a laminate and floor panel
CN102501475A (en) * 2011-09-30 2012-06-20 宁波奥尔迪装饰材料有限公司 Noncombustible decorative plate and preparation method thereof
CN102672789B (en) * 2012-06-14 2015-07-22 宁波中加低碳新技术研究院有限公司 Durable wood-bamboo cellulose composite material
CN106272870A (en) * 2016-08-23 2017-01-04 宁波泊人艾电子有限公司 A kind of portable sound box of improvement
CN106217580A (en) * 2016-08-23 2016-12-14 宁波大诚和电子有限公司 A kind of improved portable audio amplifier
CN106419668A (en) * 2016-10-09 2017-02-22 台州市黄岩恒龙工艺品有限公司 Leather cutting board and production method thereof

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