AU2021105590A4 - Method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor - Google Patents
Method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor Download PDFInfo
- Publication number
- AU2021105590A4 AU2021105590A4 AU2021105590A AU2021105590A AU2021105590A4 AU 2021105590 A4 AU2021105590 A4 AU 2021105590A4 AU 2021105590 A AU2021105590 A AU 2021105590A AU 2021105590 A AU2021105590 A AU 2021105590A AU 2021105590 A4 AU2021105590 A4 AU 2021105590A4
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- AU
- Australia
- Prior art keywords
- container floor
- longitudinal
- full
- width
- veneers
- 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.)
- Ceased
Links
- 238000007688 edging Methods 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000002699 waste material Substances 0.000 title claims abstract description 21
- 241001649012 Cypselea humifusa Species 0.000 claims abstract description 27
- HOMBCMTVOCZMMX-UHFFFAOYSA-N panal Natural products CC1CC(=O)C(C2C=C(CC(O)C12)C(=O)O)C(=C)C=O HOMBCMTVOCZMMX-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 238000007731 hot pressing Methods 0.000 claims abstract description 10
- 238000005215 recombination Methods 0.000 claims abstract description 7
- 230000006798 recombination Effects 0.000 claims abstract description 7
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 4
- 238000009966 trimming Methods 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- 235000018185 Betula X alpestris Nutrition 0.000 claims description 3
- 235000018212 Betula X uliginosa Nutrition 0.000 claims description 3
- 244000166124 Eucalyptus globulus Species 0.000 claims description 3
- 241000218652 Larix Species 0.000 claims description 3
- 235000005590 Larix decidua Nutrition 0.000 claims description 3
- 241000018650 Pinus massoniana Species 0.000 claims description 3
- 235000011609 Pinus massoniana Nutrition 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000011121 hardwood Substances 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 241000894007 species Species 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000013329 compounding Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- 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
- 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
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
- B09B3/21—Agglomeration, binding or encapsulation of solid waste using organic binders or matrix
- B09B3/24—Binders with plastic
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
Abstract
This invention relates to a method for recombining and manufacturing container
floor by utilizing the waste of the longitudinal edgings of container floor, which fully
uses the high strength waste generated by longitudinal sawing of container floor,
through process of cutting and recombination, and further compounding with full-width
veneer. This invention can provide a new type of panal with stable size, high modulus
of rupture and modulus of elasticity that meets the requirements of container floor. The
process in particular is described as following: Trimming and cutting the longitudinal
edgings of the container floor into two strips of the same thickness along the thickness
center line. Gluing the two sides of the strip made by cutting, and horizontally splicing
it into a full-width splicing panal. Sanding the full-width spliced panal made by
horizontal splicing with fixed thickness. Using the full-width spliced panal by thick
sanding, as the base plate, further recombining with several full-width veneers, and
then making into new container floor with high strength by hot-pressing curing and
post-forming.
2/2
Fulllongitudinalveneer Full transverseveneer Full Edging Jointedpenl
FigureK3
Description
2/2
Fulllongitudinalveneer Full transverseveneer Full Edging Jointedpenl
FigureK3
Method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor
TECHNICAL FIELD This invention relates to a method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor, belonging to the technical field of forestry engineering, wood processing and wood-based panel technology.
BACKGROUND container floor is made of various veneers with excellent mechanical properties through special structural design, which is mainly a high-strength plywood for structure engineering use. Its longitudinal modulus of rupture is generally greater than 85MPa, and the longitudinal modulus of elasticity is as high as above 1000OMPa, which is the main load-bearing fittings of container. A large amount of edge strips are generated in the dimensional processing of the container floor in the later stage of production, especially the longitudinal edge strips, which have extremely high high modulus of rupture and modulus of elasticity. However, due to the special thickness specification of the bottom plate (28mm), no valuable utilization way for longitudinal edgings has been found so far.
SUMMARY This invention provides a method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor in order to solve the problem exists in the prior art. The technical method provided by this invention is a method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor which comprises the following steps: Step 1: Trimming and cutting the longitudinal edgings of the container floor into two strips with the same thickness along the thickness center line
Step 2: Gluing the two sides of the strip made by cutting, and horizontally splicing it into a full-width splicing panal. Step 3: Sanding the full-width spliced panal to a predetermined thichness. Step 4: Using the full-width spliced panal that was fixed thickness as the base material for slab recombination, and laying several layers of veneers with the same size on one side of the face layer of the full-width spliced panal. The fiber directions of these layers of veneers are staggered, and laying several layers of veneers with the same width on the side of the core face layer of the full-width splicing panal. The fiber directions of these several layers of veneers are staggered, and adhesive is rolling coated between the surface of veneers to bond the veneers and the full-width splicing panal strongly, thus completing the recombination of slab. Step 5: Putting the recombined slab into a cold press for pre-pressing, and putting the pre-pressed slab into a hot press for hot pressing, then slowly depressurizing and taking out the slab and stacking it for a certain time. Step 6: Edging the slab processed in Step 5, fixed thickness sanding the slab, sawing the slab according to standard specifications and dimensions, and grooving the slab to manufacture the finished container floor. Further, the predetermined thickness of the full-width splicing panal in Step 3 is about 13 mm. Further, five layers of veneers with the same size are laid on one side of the face layer of the full-width spliced panal, and the fiber directions among the veneers are transverse-longitudinal-transverse-longitudinal-longitudinal in turn. Further, seven layers of veneers with the same width are laid on one side of the cutting plane of the full-width spliced panal, and the fiber directions among the veneers are longitudinal-transverse-longitudinal-transverse-longitudinal-longitudinal longitudinal. Further, the water content of the veneer in Step 4 is 6-10%, and the thickness is 1.65mm or 1.85 mm. Further, phenolic resin adhesive with insect-resisit agent is coated between the 2 veneers, and the coating amount is 160-190g/m .
Further, pre-pressing time in the cold press in Step 5 is 20-40min, and the unit pressure is 1.2-1.5MPa. In the hot press, the hot pressing time is 20-30min, the unit pressure is 1.8-2.5MPa, and the hot pressing temperature is 130-140°C; Stacking time is over 12h. Further, the veneer is made of hardwood. Further, the veneer is made from wood species include eucalyptus, larch, masson pine or birch. Further, the thickness of the bottom plate of the finished container is 28±0.8mm. The method has the beneficial effects that: According to the invention, the longitudinal side strips waste generated in the process of manufacturing the dimensions of the container floor are cut and recombined into a new container floor, thus reducing the manufacturing cost of the container floor, and the utilization value of processing waste is improved. The physical and mechanical properties of the new container floor meet the standard requirements of container floor, the consumption of high-quality materials and adhesives is reduced by more than 40%, and the hot pressing cycle is shortened by more than 30%.
BRIEF DESCRIPTION OF THE FIGURES Figure 1. Schematic diagram of container floor edgings cutting and splicing The longitudinal edgings of container floor is the long strip waste produced by the longitudinal sawing of floor. Its width is generally 3-6cm, and it has high modulus of rupture and modulus of elasticity. It is splited into two pieces along the central layer, and then jointed together in the width direction to make the full width panel. This full width panel This full-width panel can replace a large number of high quality veneers for container floor manufacturing. Figure 2. Schematic diagram of full veneer The full longitudinal veneer refers to the veneer of its fiber direction parallel to the length direction of the floor, its size is generally 4 feet width by 8 feet length. Figure3. Schematic diagram of assembling structure of the new container floor The assembling mat structure has the following characteristics: first, the mat structure is asymmetric; second, the full edging panel is laid below the central layer, and its central cutting plane is facing the central layer; third, the top surface of the floor are adjacent three plies of full longitudinal veneer; the bottom surface of the floor are adjacent two plies of full transverse veneer.
DESCRIPTION OF THE INVENTION The invention will be further explained with a specific embodiment below: Method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor comprises the following steps: Step 1: Trimming and cutting the longitudinal edgings of the container floor into two strips with the same thickness along the thickness center line Step 2: Gluing the two sides of the strip made by cutting, and horizontally splicing it into a full-width splicing panal. Step 3: Sanding the full-width spliced panal to a predetermined thichness. Step 4: Using the full-width spliced panal that was fixed thickness as the base material for slab recombination, and laying several layers of veneers with the same size on one side of the face layer of the full-width spliced panal. The fiber directions of these layers of veneers are staggered, and laying several layers of veneers with the same width on the side of the core face layer of the full-width splicing panal. The fiber directions of these several layers of veneers are staggered, and adhesive is rolling coated between the surface of veneers to bond the veneers and the full-width splicing panal strongly, thus completing the recombination of slab. Step 5: Putting the recombined slab into a cold press for pre-pressing, and putting the pre-pressed slab into a hot press for hot pressing, then slowly depressurizing and taking out the slab and stacking it for a certain time. Step 6: Edging the slab processed in Step 5, fixed thickness sanding the slab, sawing the slab according to standard specifications and dimensions, and grooving the slab to manufacture the finished container floor. In the embodiment, five layers of veneers with the same width are laid on one side of the face layer of the full-width spliced panel, and the fiber directions among the veneers are transverse-longitudinal-transverse-longitudinal-longitudinal in turn.
In embodiment, seven layers of veneers with the same width are laid on one side of the core face layer of the full-width spliced panel, and the fiber directions among the veneers are longitudinal-transverse-longitudinal-transverse-longitudinal-longitudinal longitudinal.. In the embodiment, the water content of the veneer in step 4 is 6-10%, and the thickness is 1.65mm or 1.85 mm. In the embodiment, phenolic resin adhesive with insect-resist agent is coated 2 between the veneers, and the coating amount is 160-190g/m
. In the embodiment, pre-pressing time in the cold press in step 5 is 20-40min, and the unit pressure is 1.2-1.5MPa. In the hot press, the hot pressing time is 20-30min, the unit pressure is 1.8-2.5MPa, and the hot pressing temperature is 130-1400 C. Stacking time is over 12h. In the embodiment, the veneer is made of hardwood. In the embodiment, the veneer is made from wood species include eucalyptus, larch, masson pine or birch. In the embodiment, the thickness of the bottom panel of the finished container is 28±0.8mm. The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent substitution and improvement made to the above embodiments by any person familiar with this profession according to the technical essence of the present invention without departing from the technical scheme of the present invention still falls within the protection scope of the technical scheme of the present invention.
Claims (9)
- THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS: 1. Method for recombining and manufacturing container floor by utilizing the waste of the longitudinal edgings of container floor is characterized in comprising the following technical steps: Step 1: Trimming and cutting the longitudinal edgings of the container floor into two strips with the same thickness along the thickness center line. Step 2: Gluing the two sides of the strip made by cutting, and horizontally splicing it into a full-width splicing panal. Step 3: Sanding the full-width spliced panal to a predetermined thichness. Step 4: Using the full-width spliced panal that was fixed thickness as the base material for slab recombination, and laying several layers of veneers with the same size on one side of the face layer of the full-width spliced panal. The fiber directions of these layers of veneers are staggered, and laying several layers of veneers with the same width on the side of the core face layer of the full-width splicing panal. The fiber directions of these several layers of veneers are staggered, and adhesive is rolling coated between the surface of veneers to bond the veneers and the full-width splicing panal strongly, thus completing the recombination of slab. Step 5: Putting the recombined slab into a cold press for pre-pressing, and putting the pre-pressed slab into a hot pressforhotpressing, then slowly depressurizing and taking out the slab and stacking it for a certain time. Step 6: Edging the slab processed in Step 5, fixed thickness sanding the slab, sawing the slab according to standard specifications and dimensions, and grooving the slab to manufacture the finished container floor.
- 2. Method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor, according to claim 1, is characterized in that the predetermined thickness of the full-width splicing panal in Step 3 is about 13 mm.
- 3. Method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor, according to claim 2, is characterized in that in step 4, five layers of veneers with the same size are laid on one side of the face layer of the full-width spliced panal, and the fiber directions among the veneers are transverse-longitudinal-transverse-longitudinal-longitudinal in turn.
- 4. Method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor, according to claim 3, is characterized in that in step 4, seven layers of veneers with the same width are laid on one side of the core face layer of the full-width spliced panel, and the fiber directions among the veneers are longitudinal-transverse-longitudinal-transverse-longitudinal-longitudinal longitudinal.
- 5. Method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor, according to claim 3, is characterized in that in step 4, the water content of the veneer in step 4 is 6-10%, and the thickness is 1.65mm or 1.85 mm.
- 6. Method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor, according to claim 5, is characterized in that in step 4, phenolic resin adhesive with insect-resist agent is coated between the veneers, and the coating amount is 160-190g/m2 .
- 7. Method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor, according to claim 6, is characterized in that the pre-pressing time in the cold press in step 5 is 20-40min, and the unit pressure is 1.2-1.5MPa. In the hot press, the hot pressing time is 20-30min, the unit pressure is 1.8-2.5MPa, and the hot pressing temperature is 130-140°C; Stacking time is over 12h. Method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor, according to claim 7, is characterized in that the veneer is made of hardwood.
- 8. Method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor, according to claim 8, is characterized in that the veneer is made from wood species include eucalyptus, larch, masson pine or birch.
- 9. Method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor, according to claim 9, is characterized in that the thickness of the bottom plate of the finished container is 28±0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021105590A AU2021105590A4 (en) | 2021-08-16 | 2021-08-16 | Method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021105590A AU2021105590A4 (en) | 2021-08-16 | 2021-08-16 | Method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2021105590A4 true AU2021105590A4 (en) | 2021-10-14 |
Family
ID=78007567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2021105590A Ceased AU2021105590A4 (en) | 2021-08-16 | 2021-08-16 | Method for recombining and manufacturing container floor by utilizing waste of the longitudinal edgings of container floor |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2021105590A4 (en) |
-
2021
- 2021-08-16 AU AU2021105590A patent/AU2021105590A4/en not_active Ceased
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |