CN108927859A - A kind of veneer patch processing method of composite plywood - Google Patents
A kind of veneer patch processing method of composite plywood Download PDFInfo
- Publication number
- CN108927859A CN108927859A CN201810876819.2A CN201810876819A CN108927859A CN 108927859 A CN108927859 A CN 108927859A CN 201810876819 A CN201810876819 A CN 201810876819A CN 108927859 A CN108927859 A CN 108927859A
- Authority
- CN
- China
- Prior art keywords
- veneer
- substrate
- glue
- composite plywood
- processing method
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D3/00—Veneer presses; Press plates; Plywood presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
- B27D5/006—Trimming, chamfering or bevelling edgings, e.g. lists
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
Abstract
The invention discloses a kind of veneer patch processing methods of composite plywood, comprising the following steps: step 1, substrate sawing, step 2, substrate polishing, step 3, veneer cutting, step 4, impregnation, step 5, substrate side gluing, step 6, substrate side veneer, step 7, substrate other side gluing, step 8, substrate other side veneer, step 9, timeliness, step 10, hot pressing, step 11, plastic film wind timeliness, step 12, seal up for safekeeping after cutting deburring；There is the phenomenon that being easy degumming during existing composite plywood surface veneer patch, while entire composite plywood surface veneer the problem of there is also buckling deformations；The present invention improves the bond effect between veneer and substrate surface, the later period is avoided degumming problem occur, preferred heat pressing process can improve composite plywood in practice, and surface can lead to the problem of buckling deformation by optimization adhesive formula rate.
Description
Technical field
The present invention relates to technical field of board processing, in particular to the veneer patch processing method of a kind of composite plywood.
Background technique
With the application of various wood-base fibre and particle panel materials in furniture and woodwork production, need using various veneers and edging material
Make incrustation and edge Seal treatment.There are many types by the difference of its material for veneer (containing edge sealing) material, wherein wooden class
Have natural veneer, artificial veneer, veneer etc.；Papery class has printed decoration paper, synthetic resin impregnated paper, decorative panel etc.；Modeling
Material class has polyvinyl chloride (PVC) film, polyethylene (PVE) film, polyene hydroxyl (match of Alkorcell Losec) film etc.；It is other
There are also various textile fabrics, synthetic leather, metal foil etc..Surface lining mainly plays surface protection and two kinds of incrustation.No
Same surface lining has different decorative effects.
Veneer is a kind of wooden advanced surface lining being commonly used in Furniture manufacture and interior decoration, is widely applied
It is used in household and the production of wooden device in each, and there is showing for easy degumming during existing composite plywood surface veneer patch
As；Meanwhile entire composite plywood surface veneer the problem of there is also buckling deformations.
Summary of the invention
The purpose of the present invention is to provide a kind of veneer patch processing methods of composite plywood, for solving above-mentioned technology
Problem has the characteristics that bonding stability is good and veneer patch flatness is high.
Technical problem solved by the invention can be realized using following technical scheme:
A kind of veneer patch processing method of composite plywood, includes the following steps,
Step 1, substrate sawing require to be that technique requires specification by substrate sawing according to technique, and substrate selects compound gluing
Plate；
Step 2, substrate polishing, selects belt sander, carries out surface throwing respectively to substrate upper and lower surface using same specification abrasive band
Light；
Step 3, veneer are cut, and veneer is cut into and requires specification for technique；
Step 4, impregnation configure adhesive, and adhesive uses UF glue, PVAc glue, ammonium chloride solution and flour hybrid modulation；
Step 5, gluing apply glue-spread by technique requirement, are brushed on one side surface of substrate with brush, pass through rubber rollers handle
Adhesive flattening-out；
Step 6, then veneer right-side-out is fitted on one side surface of substrate for filling adhesive by veneer, two neighboring
Veneer edge is closely coupled；
Step 7, gluing apply glue-spread by technique requirement, are brushed on another side surface of substrate with brush, pass through rubber rollers
Adhesive flattening-out；
Then veneer right-side-out is fitted on another side surface of substrate for filling adhesive, adjacent two by step 8, veneer
A veneer edge is closely coupled, obtains semi-finished product；
Step 9, timeliness, aging time must not be lower than 30min；
Heating platen is first risen to predetermined temperature by step 10, hot pressing, and defined surface hot pressing pressure is arranged, suppresses by hot pressing time
Semi-finished product after completing timeliness；
Step 11, timeliness, the semi-finished product after completing hot pressing are wound by plastic film, and aging time must not be lower than 48h；
Step 12 carries out deburring processing to the semi-finished product after completing timeliness with shearing knife, acquisition finished product, and with plastic film two
Secondary winding, is sealed up for safekeeping.
Further, in step 2, after substrate surface polishing, surface roughness is not greater than 24 ~ 48 μm.
Further, in step 4, adhesive includes 100 parts of UF glue, 100 parts of PVAc glue, 1 part of ammonium chloride solution, flour
10 parts, wherein ammonium chloride solution concentration is 20%.
Further, in step 4, solid content is that solid content is 36% in 50%, PVAc glue in UF glue.
Further, in step 5 and step 7, glue-spread is 100 ~ 110g/m2。
Further, in step 6 and step 8, two neighboring veneer first passes through transparent wide glue in advance and is spliced, and splices phase
Adjacent two veneer edges are closely coupled.
Further, in step 9, aging time 45min.
Further, in step 10, step 10, hot pressing plate temperature is 90 ~ 100 DEG C, and hot pressing time is 280 ~ 320s, surface heat
Pressure pressure is 1.0MPa.
Further, the composite plywood includes glued board ontology, and the glued board ontology has layer structure, the glue
Plywood ontology is successively arranged top panel, core plate and lower panel from top to bottom.
Further, the top panel and lower panel are all made of wooden plywood, and the core plate uses fire-retardant core plate.
The present invention has following outstanding advantages and effect compared with prior art: the present invention passes through optimization adhesive recipe ratio
Example, improves the bond effect between veneer and substrate surface, the later period is avoided degumming problem occur；By using substrate buffer
Skill improves surface layer flatness, can increase the bonding of adhesive using rubber rollers adhesive flattening-out in conjunction with optimization coating technique
Planarization, so as to improve veneer surface bonding flatness, preferred heat pressing process can make veneer and substrate adhesion more
Closely, so as to improve composite plywood in practice, surface can lead to the problem of buckling deformation.
The features of the present invention sees this case or less preferably detailed description of embodiment and is well understood.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
Embodiment 1
The invention discloses a kind of veneer patch processing methods of composite plywood, include the following steps,
Step 1, substrate sawing require to be that technique requires specification by substrate sawing according to technique, and substrate selects compound gluing
Plate, composite plywood ontology have layer structure, are successively arranged top panel, core plate and lower panel from top to bottom, wherein top panel
It is all made of wooden plywood with lower panel, core plate uses fire-retardant core plate；
Step 2, substrate polishing, when polishing, select belt sander, carry out table respectively to substrate upper and lower surface using same specification abrasive band
Face polishing, polishing will guarantee that substrate surface is smooth, and after substrate surface polishing, surface roughness is not greater than 24 ~ 48 μm；
Step 3, veneer are cut, and veneer is cut into and requires specification for technique；
Step 4, impregnation configure adhesive, and adhesive raw materials include UF glue, PVAc glue, ammonium chloride solution, flour, respectively will be former
Material is put into stirring container, is then stirred again, is put after stirring evenly spare on one side；
Step 5, gluing apply glue-spread by technique requirement, and preferred glue-spread is 100 ~ 110g/m2, with brush adhesive
It brushes on one side surface of substrate, again by rubber rollers adhesive flattening-out after the completion of brushing, so that adhesive uniformly adheres to
On one side surface of substrate；
Veneer right-side-out is fitted on one side surface of substrate for filling adhesive by step 6, veneer, if it is several spellings
It connects, is spliced then two neighboring veneer will first pass through transparent wide glue in advance, be then fitted in the substrate side for filling adhesive
On surface, the two neighboring veneer edge that is connected wants closely coupled, and there can be no off-seams and dislocation；
Step 7, gluing apply glue-spread by technique requirement, and preferred glue-spread is 100 ~ 110g/m2, with brush adhesive
It brushes on another side surface of substrate, again by rubber rollers adhesive flattening-out after the completion of brushing, so that adhesive uniformly glues
It is attached on another side surface of substrate；
Veneer right-side-out is fitted on another side surface of substrate for filling adhesive, if it is several by step 8, veneer
Splicing is spliced then two neighboring veneer will first pass through transparent wide glue in advance, be then fitted in fill adhesive substrate it is another
On one side surface, two neighboring veneer edge is closely coupled, and there can be no off-seams and dislocation, obtains semi-finished product；
Step 9, timeliness, aging time must not be lower than 30min, and preferred aging time is 45min；
Timeliness and surface bonding intensity record sheet
Heating platen is first risen to predetermined temperature by step 10, hot pressing, be arranged as defined in surface hot pressing pressure, then by half after timeliness
Finished product is put into hot press, is suppressed by hot pressing time；
Step 11, timeliness, the semi-finished product after completing hot pressing are by plastic film winding, then carry out timeliness to eliminate thermal stress,
Aging time must not be lower than 48h；
Step 12 carries out deburring processing to the semi-finished product after completing timeliness with shearing knife, acquisition finished product, and with plastic film two
Secondary winding, is sealed up for safekeeping.
In conjunction with above-mentioned, substrate is processed by shot blasting in the present embodiment, limits surface roughness, it is subsequent so as to be promoted
Bond planarization；Pass through rubber rollers adhesive flattening-out during gluing, improves the uniformity of adhesive brushing, it is preferred to apply
100 ~ 110g/m of glue amount2Veneer and substrate adhesion fastness can be improved, preferred aging time 45min in ag(e)ing process can
Improve the surface bonding intensity of veneer and substrate.
Embodiment 2
On the basis of embodiment 1, a kind of preferred step 4 of veneer patch processing method of composite plywood configures viscose glue
Agent, preferred adhesive formulation include 100 parts of UF glue, 100 parts of PVAc glue, 1 part of ammonium chloride solution, 10 parts of flour, and when impregnation is first
UF glue and PVAc glue are first poured into container and mixed, after stirring 2min, then flour is poured into, 10min is stirred, is eventually adding chlorination
Ammonium salt solution, then be stirred 2min, the concentration of ammonium chloride solution should be 20%, configures the adhesive of completion and wherein contains in UF glue admittedly
Amount is that solid content is 36% in 50%, PVAc glue.
In conjunction with above-mentioned, the impregnation formula in the present embodiment can not only reduce cost, and the bonding that adhesive also can be improved is strong
Degree, obtains veneer in veneer step with substrate adhesion stronger, so as to improve plate degumming problem.
Embodiment 3
On the basis of embodiment 1, a kind of preferred step 10 of veneer patch processing method of composite plywood, hot pressing, preferably
Heat pressing process before carrying out hot pressing, first to set heat for the hot pressing temperature of hot press as 90 ~ 100 DEG C, hot pressing time 280
~ 320s, surface hot pressing pressure are 1.0MPa.
By Experimental comparison, preferred technique is that the hot pressing temperature of hot press is set as 90 DEG C, and the temperature range is for viscous
The viscose glue reaction of jelly is the most reasonable, and the time for carrying out hot pressing is set as 300s, which reacts most the viscose glue of adhesive
To be reasonable, hot press surface hot pressing pressure is set as 1.0MPa, then setting completed is put into heat for the semi-finished product after timeliness 45min
It in press, is suppressed according to the hot pressing time set in advance, is wound semi-finished product by plastic film after the completion of compacting,
It is spare after the completion of winding.
In conjunction with above-mentioned, preferred heat pressing process can make the even closer of veneer and substrate adhesion in the present embodiment, to change
Composite plywood has been apt to it in practice, surface can lead to the problem of buckling deformation.
Hot press performance parameter comparison table
Based on the above embodiments, the present invention is improved viscous between veneer and substrate surface by optimization adhesive formula rate
Effect is tied, the later period is avoided degumming problem occur；The present invention improves surface layer flatness by using substrate polishing process, in conjunction with optimization
Coating technique can increase the bonding planarization of adhesive using rubber rollers adhesive flattening-out, so as to improve veneer table
Face bonds flatness；The surface bonding intensity of veneer and substrate can be improved in preferred aging time in ag(e)ing process；Preferred heat
Pressure technique can make the even closer of veneer and substrate adhesion, and so as to improve composite plywood in practice, surface can be produced
The problem of raw buckling deformation.
As known by the technical knowledge, the present invention can pass through the embodiment party of other essence without departing from its spirit or essential feature
Case is realized.Therefore, embodiment disclosed above, in all respects are merely illustrative, not the only.Institute
Have within the scope of the present invention or is included in the invention in the change being equal in the scope of the present invention.
Claims (10)
1. a kind of veneer patch processing method of composite plywood, it is characterised in that:
Step 1, substrate sawing require to be that technique requires specification by substrate sawing according to technique, and substrate selects compound gluing
Plate；
Step 2, substrate polishing, selects belt sander, carries out surface throwing respectively to substrate upper and lower surface using same specification abrasive band
Light；
Step 3, veneer are cut, and veneer is cut into and requires specification for technique；
Step 4, impregnation configure adhesive, and adhesive uses UF glue, PVAc glue, ammonium chloride solution and flour hybrid modulation；
Step 5, gluing apply glue-spread by technique requirement, are brushed on one side surface of substrate with brush, pass through rubber rollers handle
Adhesive flattening-out；
Step 6, then veneer right-side-out is fitted on one side surface of substrate for filling adhesive by veneer, two neighboring
Veneer edge is closely coupled；
Step 7, gluing apply glue-spread by technique requirement, are brushed on another side surface of substrate with brush, pass through rubber rollers
Adhesive flattening-out；
Then veneer right-side-out is fitted on another side surface of substrate for filling adhesive, adjacent two by step 8, veneer
A veneer edge is closely coupled, obtains semi-finished product；
Step 9, timeliness, aging time must not be lower than 30min；
Heating platen is first risen to predetermined temperature by step 10, hot pressing, and defined surface hot pressing pressure is arranged, suppresses by hot pressing time
Semi-finished product after completing timeliness；
Step 11, timeliness, the semi-finished product after completing hot pressing are wound by plastic film, and aging time must not be lower than 48h；
Step 12 carries out deburring processing to the semi-finished product after completing timeliness with shearing knife, acquisition finished product, and with plastic film two
Secondary winding, is sealed up for safekeeping.
2. a kind of veneer patch processing method of composite plywood according to claim 1, it is characterised in that: step 2
In, after substrate surface polishing, surface roughness is not greater than 24 ~ 48 μm.
3. a kind of veneer patch processing method of composite plywood according to claim 1, it is characterised in that: step 4
In, adhesive includes 100 parts of UF glue, 100 parts of PVAc glue, 1 part of ammonium chloride solution, 10 parts of flour, wherein ammonium chloride solution concentration
It is 20%.
4. a kind of veneer patch processing method of composite plywood according to claim 1 or 3, it is characterised in that: step
In four, solid content is that solid content is 36% in 50%, PVAc glue in UF glue.
5. a kind of veneer patch processing method of composite plywood according to claim 1, it is characterised in that: step 5 and
In step 7, glue-spread is 100 ~ 110g/m2。
6. a kind of veneer patch processing method of composite plywood according to claim 1, it is characterised in that: step 6 and
In step 8, two neighboring veneer first passes through transparent wide glue in advance and is spliced, two neighboring veneer side when making several splicings of veneer
Edge is closely coupled.
7. a kind of veneer patch processing method of composite plywood according to claim 1, it is characterised in that: step 9
In, aging time 45min.
8. a kind of veneer patch processing method of composite plywood according to claim 1, it is characterised in that: step 10,
Hot pressing plate temperature is 90 ~ 100 DEG C, and hot pressing time is 280 ~ 320s, and surface hot pressing pressure is 1.0MPa.
9. a kind of veneer patch processing method of composite plywood according to claim 1, it is characterised in that: described compound
Glued board includes glued board ontology, and the glued board ontology has layer structure, and the glued board ontology is successively set from top to bottom
There are top panel, core plate and lower panel.
10. a kind of veneer patch processing method of composite plywood according to claim 9, it is characterised in that: on described
Panel and lower panel are all made of wooden plywood, and the core plate uses fire-retardant core plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810876819.2A CN108927859A (en) | 2018-08-03 | 2018-08-03 | A kind of veneer patch processing method of composite plywood |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810876819.2A CN108927859A (en) | 2018-08-03 | 2018-08-03 | A kind of veneer patch processing method of composite plywood |
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| CN108927859A true CN108927859A (en) | 2018-12-04 |
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| CN201810876819.2A Pending CN108927859A (en) | 2018-08-03 | 2018-08-03 | A kind of veneer patch processing method of composite plywood |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111451867A (en) * | 2020-04-13 | 2020-07-28 | 湖州南浔双林永康木盘厂 | A device that is used for compressing tightly and two-sided while of carpenter's board to polish |
| CN111975889A (en) * | 2020-08-31 | 2020-11-24 | 中国林业科学研究院木材工业研究所 | Wood structure material and preparation method thereof |
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| CN101564852A (en) * | 2008-04-23 | 2009-10-28 | 杨军 | Production method of melamine veneered decorated board |
| CN102896868A (en) * | 2012-10-17 | 2013-01-30 | 汕头市宜华家具有限公司 | Veneering production process for artificial board |
| CN103171002A (en) * | 2013-04-12 | 2013-06-26 | 山东立晨集团有限公司 | Solid wood veneer wet combining method and veneering intermediate plate |
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| CN111451867A (en) * | 2020-04-13 | 2020-07-28 | 湖州南浔双林永康木盘厂 | A device that is used for compressing tightly and two-sided while of carpenter's board to polish |
| CN111975889A (en) * | 2020-08-31 | 2020-11-24 | 中国林业科学研究院木材工业研究所 | Wood structure material and preparation method thereof |
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Application publication date: 20181204 |