CN105397876A - China fir dense furniture profile and processing method - Google Patents
China fir dense furniture profile and processing method Download PDFInfo
- Publication number
- CN105397876A CN105397876A CN201510730225.7A CN201510730225A CN105397876A CN 105397876 A CN105397876 A CN 105397876A CN 201510730225 A CN201510730225 A CN 201510730225A CN 105397876 A CN105397876 A CN 105397876A
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- CN
- China
- Prior art keywords
- furniture
- thin plate
- processing method
- densification
- china fir
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/06—Manufacture of central layers; Form of central layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/06—Softening or hardening of wood
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
Abstract
The invention belongs to the technical field of base material preparation of wood processing and furniture production, and particularly relates to a China fir dense furniture profile and a processing method. A plastic film replaces an adhesive to prepare the dense furniture profile; the thickness of China fir sheets is 8-12 mm, the width is selected according to the specification of the furniture profile, and the sheets are subjected to microwave softening treatment, then assembled to be put into a home-made pressurization mold and pressurized and glued into the dense furniture profile under the certain hot-pressing conditions. The processing method ensures that the base material is free of aldehyde and environmentally friendly, and the processing method is a processing technology capable of efficiently improving the additional value of middle cutting wood of fast-growing China firs. The consumption concepts of environmental protection, safety and health in the current wood industry and furniture industry are met, and the application fields are wide.
Description
Technical field
The invention belongs to the base material preparing technical field for timber processing and Furniture manufacturing, be specifically related to a kind of China fir densification furniture section steel and processing method.
Background technology
China fir fast-growing woods growth course needs to carry out intermediate cutting to promote tree growth in good time.China fir intermediate cutting output is high, but between China fir, material material is poor, quality is soft, easy moisture absorption, and practical value is low, utilizes limited.Be mainly used in packing timber at present, throwaway chopsticks and core board for fine woodworker's board etc., timber utilization rate and added value of product are extremely low.Improving material density and densification technology between China fir is the important channel expanding material application between China fir.Domestic and international research timber densification mainly concentrates on resin treatment such as utilizing low molecule PF, MP or by process such as Cross-linked reactions, these methods not only destroy timber excellent properties naturally, complex process, cost is high, and there is the harmful substances such as free formaldehyde, the requirement of high-grade indoor, furniture woods cannot be met.The present invention intends adopting microwave softened treatment process, substitutes adhesive to prepare densification furniture section steel in conjunction with plastic sheeting.This new material has the advantage of structural material, functional material and environmentally conscious materials concurrently, furniture woods and indoor decoration material has competitiveness, can realize the object of China fir efficiency utilization.
Summary of the invention
The present invention is directed to the deficiency that material between China fir is poor, practical value is low, a kind of China fir densification furniture section steel and processing method are provided.By substituting adhesive with plastic sheeting, adopting microwave to carry out sofening treatment to thin plate, being placed in homemade pressurizing mold through assembly, under certain hot pressing condition, pressurization, densification gummed, can make China fir densification; China fir through this process has good dimensional stability, and high-quality broadleaf can be replaced to use, and just can meet furniture part and assembly requirement through simple processing.
To achieve these goals, the present invention adopts following technical scheme:
A processing method for China fir densification furniture section steel, comprises the following steps:
(1) preparation of thin plate: take Chinese fir thinnings as raw material, sawing becomes thickness to be the thin plate of 8-12mm, the hole of the certain density of thin plate two sides rolling, moisture control more than 70%, to guarantee the enforcement of softening process;
(2) plastic sheeting is pre-formed: sealed polyethylene plastic that is primary or that reclaim can be selected as binding material according to material applications, cut into dimension, the cost of two kinds of plastic sheetings is different;
(3) sofening treatment of thin plate: employing power output is that the microwave of 400-550W processes thin plate, and processing time 3-6min, while making thin plate be softened, by moisture control below 15%;
(4) assembly: according to the density requirements determination compression ratio of furniture base material, the number of plies of thin plate is determined with adjacent layer thin plate combination (as adjacent layer fiber mode assembly parallel to each other pressed by vertical stressed part by compression ratio, the crossband mode assembly of adjacent layer pressed by the stressed part in parallel-plate face), using prefabricated profiled sealed polyethylene plastic as binding material between two thin plates;
(5) glue laminated, densification: mould slab being placed in respective shapes, adopt High frequency heating technique, hot pressing pressure 1.5-2.5MPa, (selection of pressure is relevant with the compression ratio of slab), hot pressing time 0.5-1.5min/mm, dwell time 6-12min, hot pressing temperature controls between 175-185 DEG C, make slab obtain heating, pressurization, gummed in a mold, until densification, then cool under pressure state;
(6) display, following process: according to the use position of material in furniture or the modeling requirement of furniture, just can meet the instructions for use of furniture by simple processing.
The hole on thin plate two sides is unsuitable intensive in step (1), and pitch of holes is greater than 16mm, and aperture is less than 2mm, in case hot pressing, densification gummed time produce the deficient phenomenon of pressure, affect the intensity of section bar.
beneficial effect of the present invention is:
1) the present invention take Chinese fir thinnings as primary raw material, adopt the microwave softened treatment process of environmental protection, adhesives sealed polyethylene plastic is also nontoxic, pollution-free, links such as ensure that base material is produced, use, be discarded, to the friendly of environment, thoroughly solves the formaldehyde pollution problem of material densification between China fir in traditional handicraft;
2) base material of wire or tabular had both retained the texture of natural timber, texture and processing operating characteristic, and base material has good dimensional stability, high-quality broadleaf can be replaced to use, just furniture part and assembly requirement can be met through simple processing, production cost is low, is the important processing method of material between a kind of efficiency utilization China fir.
Detailed description of the invention
The present invention's the following example further illustrates the present invention, but protection scope of the present invention is not limited to the following example.
embodiment 1
A processing method for China fir densification furniture section steel, concrete steps are:
(1) preparation of thin plate: be raw material with Chinese fir thinnings, is peeled into the thin plate that thickness is 12mm, the hole of the certain density of thin plate two sides rolling, moisture control more than 70%, to guarantee the enforcement of softening process;
(2) plastic sheeting is pre-formed: sealed polyethylene plastic that is primary or that reclaim can be selected as binding material according to material applications, cut into dimension, the cost of two kinds of plastic sheetings is different;
(3) sofening treatment of thin plate: employing power output is that the microwave of 500W processes thin plate, and processing time 4min, while making thin plate be softened, by moisture control below 15%;
(4) assembly: according to the density requirements determination compression ratio of furniture base material, the number of plies and adjacent layer thin plate combination (the pressing adjacent layer fiber mode assembly parallel to each other by vertical stressed part) of thin plate is determined, using prefabricated profiled sealed polyethylene plastic as binding material between two thin plates by compression ratio;
(5) glue laminated, densification: slab is placed in respective shapes from molding jig, adopt High frequency heating technique, hot pressing pressure 2.5MPa, hot pressing time 1.5min/mm, dwell time 12min, hot pressing temperature controls at about 190 DEG C, makes slab obtain heating, pressurization, gummed in a mold, until densification, then cool under pressure state;
(6) display, following process: according to the use position of material in furniture or the modeling requirement of furniture, just can meet the instructions for use of furniture by simple processing.
embodiment 2
A processing method for China fir densification furniture section steel, concrete steps are:
(1) preparation of thin plate: be raw material with Chinese fir thinnings, is peeled into the thin plate that thickness is 10mm, the hole of the certain density of thin plate two sides rolling, moisture control more than 70%, to guarantee the enforcement of softening process;
(2) plastic sheeting is pre-formed: sealed polyethylene plastic that is primary or that reclaim can be selected as binding material according to material applications, cut into dimension, the cost of two kinds of plastic sheetings is different;
(3) sofening treatment of thin plate: employing power output is that the microwave of 550W processes thin plate, and processing time 3min, while making thin plate be softened, by moisture control below 15%;
(4) assembly: according to the density requirements determination compression ratio of furniture base material, the number of plies and the adjacent layer thin plate combination (the crossband mode assembly of adjacent layer pressed by part as stressed in parallel-plate face) of thin plate is determined, using prefabricated profiled sealed polyethylene plastic as binding material between two thin plates by compression ratio;
(5) glue laminated, densification: slab is placed in respective shapes from molding jig, adopt High frequency heating technique, hot pressing pressure 1.8MPa, hot pressing time 1.0min/mm, dwell time 8min, hot pressing temperature controls at about 185 DEG C, makes slab obtain heating, pressurization, gummed in a mold, until densification, then cool under pressure state;
(6) display, following process: according to the use position of material in furniture or the modeling requirement of furniture, just can meet the instructions for use of furniture by simple processing.
embodiment 3
A processing method for China fir densification furniture section steel, comprises the following steps:
(1) preparation of thin plate: be raw material with Chinese fir thinnings, is peeled into the thin plate that thickness is 8mm, the hole of the certain density of thin plate two sides rolling, moisture control more than 70%, to guarantee the enforcement of softening process;
(2) plastic sheeting is pre-formed: sealed polyethylene plastic that is primary or that reclaim can be selected as binding material according to material applications, cut into dimension, the cost of two kinds of plastic sheetings is different;
(3) sofening treatment of thin plate: employing power output is that the microwave of 400W processes thin plate, and processing time 6min, while making thin plate be softened, by moisture control below 15%;
(4) assembly: according to the density requirements determination compression ratio of furniture base material, the number of plies and the adjacent layer thin plate combination (the crossband mode assembly of adjacent layer pressed by part as stressed in parallel-plate face) of thin plate is determined, using prefabricated profiled sealed polyethylene plastic as binding material between two thin plates by compression ratio;
(5) glue laminated, densification: slab is placed in respective shapes from molding jig, adopt High frequency heating technique, hot pressing pressure 1.5MPa, hot pressing time 0.8min/mm, dwell time 6min, hot pressing temperature controls at about 175 DEG C, makes slab obtain heating, pressurization, gummed in a mold, until densification, then cool under pressure state;
(6) display, following process: according to the use position of material in furniture or the modeling requirement of furniture, just can meet the instructions for use of furniture by simple processing.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (3)
1. a processing method for China fir densification furniture section steel, is characterized in that: comprise the following steps:
(1) preparation of thin plate: take Chinese fir thinnings as raw material, sawing becomes thickness to be the thin plate of 8-12mm, the hole of the certain density of thin plate two sides rolling, and moisture control is more than 70%;
(2) plastic sheeting is pre-formed: select sealed polyethylene plastic that is primary or that reclaim as binding material according to material applications, cut into dimension;
(3) sofening treatment of thin plate: employing power output is that the microwave of 400-550W processes thin plate, and processing time 3-6min, while making thin plate be softened, by moisture control below 15%;
(4) assembly: according to the density requirements determination compression ratio of furniture base material, is determined the number of plies and the adjacent layer thin plate combination of thin plate, using prefabricated profiled sealed polyethylene plastic as binding material between two thin plates by compression ratio;
(5) glue laminated, densification: mould slab being placed in respective shapes, adopts High frequency heating technique to carry out glue laminated, densification, then cools under pressure state;
(6) display according to the modeling requirement of the use position of material in furniture or furniture, following process.
2. the processing method of China fir densification furniture section steel according to claim 1, is characterized in that: the hole on thin plate two sides in step (1), pitch of holes is greater than 16mm, and aperture is less than 2mm.
3. the processing method of China fir densification furniture section steel according to claim 1, it is characterized in that: the hot pressing pressure of step (5) medium-high frequency heat pressing process is 1.5-2.5MPa, hot pressing time 0.5-1.5min/mm, dwell time 6-12min:, hot pressing temperature controls at 175-185 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510730225.7A CN105397876A (en) | 2015-11-02 | 2015-11-02 | China fir dense furniture profile and processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510730225.7A CN105397876A (en) | 2015-11-02 | 2015-11-02 | China fir dense furniture profile and processing method |
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| CN105397876A true CN105397876A (en) | 2016-03-16 |
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| CN201510730225.7A Pending CN105397876A (en) | 2015-11-02 | 2015-11-02 | China fir dense furniture profile and processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112757699A (en) * | 2019-11-06 | 2021-05-07 | 胡琴 | Method for hot-pressing veneering of melamine decorative paper and application thereof |
Citations (5)
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|---|---|---|---|---|
| CN1644336A (en) * | 2004-12-08 | 2005-07-27 | 中国林业科学研究院木材工业研究所 | Soft material single-board materials and wooden products with surface hardness improve |
| CN1743152A (en) * | 2004-12-23 | 2006-03-08 | 林群祥 | Plywood maving pinhole on wood sheet |
| CN101284384A (en) * | 2007-04-13 | 2008-10-15 | 林群祥 | High-density polyethylene glued board producing method |
| CN101664949A (en) * | 2009-09-10 | 2010-03-10 | 浙江林学院 | Preparation method of colored surface compressive plate |
| CN103991111A (en) * | 2014-06-03 | 2014-08-20 | 李茂林 | Large-scale high-density wood-based material and method for manufacturing same through microwave heating, pressing and gluing |
-
2015
- 2015-11-02 CN CN201510730225.7A patent/CN105397876A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1644336A (en) * | 2004-12-08 | 2005-07-27 | 中国林业科学研究院木材工业研究所 | Soft material single-board materials and wooden products with surface hardness improve |
| CN1743152A (en) * | 2004-12-23 | 2006-03-08 | 林群祥 | Plywood maving pinhole on wood sheet |
| CN101284384A (en) * | 2007-04-13 | 2008-10-15 | 林群祥 | High-density polyethylene glued board producing method |
| CN101664949A (en) * | 2009-09-10 | 2010-03-10 | 浙江林学院 | Preparation method of colored surface compressive plate |
| CN103991111A (en) * | 2014-06-03 | 2014-08-20 | 李茂林 | Large-scale high-density wood-based material and method for manufacturing same through microwave heating, pressing and gluing |
Non-Patent Citations (3)
| Title |
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| 叶翠仙，陈祖建，翁文剑，彭莉华: "木塑复合胶合板在美式家具中的应用探讨", 《林产工业》 * |
| 陈勇平，王金林，李春生: "不同热压方式下桦木重组材的密度分布", 《木材工业》 * |
| 鲍滨福，杜春贵，章卫钢，于红卫: "人工林速生杉木表面浸渍压缩密实化研究", 《林业科技》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112757699A (en) * | 2019-11-06 | 2021-05-07 | 胡琴 | Method for hot-pressing veneering of melamine decorative paper and application thereof |
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Application publication date: 20160316 |