CN202685019U - Oriented structural plate for container soleplate - Google Patents
Oriented structural plate for container soleplate Download PDFInfo
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- CN202685019U CN202685019U CN 201220273756 CN201220273756U CN202685019U CN 202685019 U CN202685019 U CN 202685019U CN 201220273756 CN201220273756 CN 201220273756 CN 201220273756 U CN201220273756 U CN 201220273756U CN 202685019 U CN202685019 U CN 202685019U
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Abstract
The utility model relates to an oriented structural plate for a container soleplate. The oriented structural plate consists of three or more than three oriented paving layers; the oriented paving layers comprise longitudinal paving layers and a horizontal paving layer which are alternately arranged and paved; the upper surface layer and the lower surface layer of the oriented structural plate are the longitudinal paving layers; and the mass ratio of the longitudinal paving layers to the horizontal paving layer is (50-70):(50-30). The oriented structural plate has very high mechanical properties and can be independently used for the container soleplate.
Description
Technical field
The utility model relates to a kind of container, particularly relates to a kind of used for bottom plate of container directional structure board.
Background technology
Container by steel plate, paint and as buffering shockproof base plate---thick glued board forms.Because container bottom board is mainly used in transportation, must have good antidetonation, shock-resistant, weatherability, the performance such as ageing-resistant.Therefore, except apparent size, very high requirement has been proposed the physical properties such as the bonding durability of the glued board that is used for container bottom board, MOR, elastic modelling quantity.For satisfying the requirement of product physical performance index, it is raw material that container is generally selected the high density rigid broadleaf with timber apron.Because the growth cycles of such seeds is long, generally about 100 years, and the mankind's needs day by day increase, and cause worldwide hard broadleaf resource sharply to reduce.The production technology of domestic all container timber apron manufacturers employings all is multi-layer solid wood gluing techniques so far, and high to the requirement of veneer Material Strength, production efficiency is low, and will consume a large amount of manpowers, and production cost is high.
Directional structure board is called again " oriented wood chipboard (Oriented Strandboard, OSB) ", the domestic Europe deals that is referred to as.Be to adopt drying, screening, apply the flat long narrow wood shavings of adhesive and additive, a kind of structural panel that hot pressing forms behind orienting spreading owing to being together cross-laminated layer by layer by many wood chips, has higher intensity.At present, the main application of directional structure board comprises: 1. timber buildings: exterior wall cover layer, roof cover layer, subfloor, structural insulation board, I-beam, individual layer floor, 2. packing case, container, shelf, pallet chock, truck body, loading and unloading the chassis, 4. showing plate, interior lining panel, 5. storage box and storage cabinet, 6. finishing material, 7. fashion furniture, kitchen furniture, 8. concrete building template.Directional structure board can't be utilized separately for the base plate of container owing to the requirement that the mechanical property parameters such as its vertical MOR, bending strength, longitudinal modulus of elasticity, transverse elasticity mould do not reach container bottom board.A kind of composite board for bottom board of container of being made by quarter sawing bamboo curtain splint composite oriented structural board is disclosed such as CN102166769A, decoration panel is impregnated paper or veneer film+bamboo mat+two layer vertical quarter sawing bamboo curtain splint, is that horizontal quarter sawing bamboo curtain splint is with vertically quarter sawing bamboo curtain splint and directional structure board are alternately arranged between the decoration panel.Application number CN201120083556.3 discloses a kind of Novel container bottom plate glued board of being made by veneer composite oriented structural board, and decoration panel is three layers of vertically middle plate, is that horizontal central layer, vertical central layer and directional structure board are alternately arranged between the decoration panel.Application number CN201120026163.9 discloses a kind of composite board for bottom board of container of producing with the bamboo curtain splint composite oriented structural board of bamboo mat, the establishment of quarter sawing bamboo chip, decoration panel is comprised of impregnated paper or veneer film, bamboo mat, two layers of vertical quarter sawing bamboo curtain splint, is that horizontal quarter sawing bamboo curtain splint is with vertically quarter sawing bamboo curtain splint and directional structure board are alternately arranged between the decoration panel.
Improve the performance parameter of directional structure board, make it replace thick glued board and be used for separately the base plate of container, be significant.
The utility model content
The purpose of this utility model is to provide a kind of used for bottom plate of container directional structure board, and described directional structure board has extraordinary mechanical property, can be used for separately the base plate of container.
In order to realize the purpose of this utility model, the following technical scheme of special employing:
The used for bottom plate of container directional structure board, it is characterized in that, described directional structure board adopts three layers and above orienting spreading technique, described orienting spreading is alternately arranged with the layer of laterally mating formation for the layer of vertically mating formation and is mated formation, the upper epidermis of directional structure board and lower top layer are the layer of vertically mating formation, and the layer of vertically mating formation is 50～70 with the mass ratio of laterally mating formation layer:: 50～30; Be preferably 55～65: 45～35.
Structural design when directional structure board is mated formation has very large impact to its intensity, the inventor mainly considers following factor when the structure of design directional structure board: directional structure board is comprised of the flaking layer of what structure, how the flaking layer of different structure is arranged, the consumption of different flaking layers how much, and these factors are interweaved together on the impact of the intensity of directional structure board, the inventor determines flaking is mated formation into vertically mat formation layer and the layer of laterally mating formation through a large amount of experimental studies, the layer of vertically mating formation is mated formation by specific mode and consumption with the layer of laterally mating formation, finally obtained a kind of qualitative framework plate with extraordinary mechanical property parameters, this directional structure board can replace thick glued board fully and be used for the base plate of container, paving structure is simple, and production cost is low.
Described directional structure board is preferably the orienting spreading technique of three layers or five layers.One, described directional structure board are three layers orienting spreading, and the superiors and orlop are the layer of vertically mating formation, sandwich layer is the layer of laterally mating formation, the superiors-sandwich layer-undermost mass ratio is 25～35: 30～50: 25～35, and preferred, be 27.5～32.5: 35～45: 27.5～32.5.They are two years old, described directional structure board is five layers orienting spreading, upper epidermis, lower top layer and intermediate layer are the layer of vertically mating formation, last time, top layer and next top layer were the layer of laterally mating formation, the mass ratio on upper epidermis-last time top layer-intermediate layer-next top layer-lower top layer is 20～28: 15～25: 10～14: 15～25: 20～28, preferably, be 22.5～25: 17.5～22.5: 10～15: 17.5～22.5: 22.5～25.
Described directional structure board is for taking in the intermediate layer as the symmetrical structure of the plane of symmetry, and namely the flaking paving structure of symmetrical layer is identical, flaking is identical in quality.The inventor is through the lot of experiments discovery, and symmetrical structure one is the mechanical property that is conducive to improve directional structure board, and the 2nd, directional structure board upper and lower surfaces isotropism, easy to use, stability is high.
Described directional structure board is formed by timber peeling, flaking, drying, screening, applying glue, orienting spreading, pre-spray steaming, the moulding of high tonnage continuous hot-press, balance internal stress.
Described timber is fast-growing poplar, leaflet by, pine, hardwood, soft weedtree and one or more in the brush wood separately thereof, is preferably fast-growing poplar and brush wood thereof.The utility model adopt fast-growing poplar, leaflet by, pine, hardwood, soft weedtree and separately the fast growing wood such as brush wood be raw material, avoided the destruction to forest and environment, in addition, the fast growing wood cost is low, the source is wide.
Described orienting spreading is 120-220mm with flaking length, thickness 0.5-0.9mm, width 5-50mm; Preferably, flaking length is 160-200mm, thickness 0.6-0.8mm, width 20-35mm.Length, width and thickness that the utility model limits flaking according to structure and the characteristic of property of the fast growing wood that adopts, the one, be conducive to improve the mechanical property parameters of directional structure board, the inner uniformity, the 2nd, make things convenient for processing.
The temperature of described drying is 120-390 ℃, and dried moisture is not higher than 6%.
The adhesive that described applying glue is adopted is one or more in Lauxite, urea-formaldehyde-modified resin, melamine urea-formaldehyde resin, phenolic resins, melamine urea aldehyde phenolic resins, PMDI isocyanates, the bean gum.
Also add insect-proof agent in the described Process of Applying Glue, described insect-proof agent is one or more among Radaluem FHP-60, Meganium2000, Meganium 3000, the Meganium 4000.
Continuous press is adopted in described high tonnage continuous hot-press moulding, and described continuous press surface pressure is 2.0-6.0Mpa.
The density 0.60-0.95g/cm of described directional structure board
3, be preferably 0.80-0.95g/cm
3
The thickness of described directional structure board is 6-30mm.
The moisture content of described directional structure board is not higher than 5%.
The mechanical property parameters of described directional structure board is: vertical MOR 65-91Mpa, bending strength 24-45Mpa, longitudinal modulus of elasticity 5500-12500Mpa, transverse modulus of elasticity 2000-4015Mpa; Preferably, the mechanical performance index of described directional structure board is: vertical MOR 84-91Mpa; Bending strength 35-45Mpa; Longitudinal modulus of elasticity 8321-12500Mpa; Transverse modulus of elasticity 3420-4015Mpa.
The parameter request that directional structure board thinner thickness, the density that the utility model provides is higher, MOR and elastic modelling quantity satisfy container bottom board fully can be used for separately container bottom board, have cost low, save the advantage such as space.
Compared with prior art, the beneficial effects of the utility model are:
The utility model is by the structure that changes directional structure board and the technique of improving directional structure board, greatly improved the mechanical property parameters of directional structure board, its vertical MOR 65-91Mpa, bending strength 24-45Mpa, longitudinal modulus of elasticity 5500-12500Mpa, transverse modulus of elasticity 2000-4015Mpa, the performance that it is excellent, make it substitute thick glued board, can be used for separately container bottom board, also can be applicable to compartment board, the wallboard in wooden structures room and spandrel girder, the application of directional structure board has been widened in the fields such as floor base material, and has greatly reduced cost.In addition, take the fast growing wood of artificial growth as raw material, greatly alleviated the destruction to forest and environment.
Description of drawings
Fig. 1 is three layers of paving structure schematic diagram of the utility model;
Fig. 2 is five layers of paving structure schematic diagram of the utility model.
Wherein: the 1.1-the superiors, 1.2-orlop, 2.1-sandwich layer, 3.1-upper epidermis, top layer under the 3.2-, 3.3 intermediate layers, 4.1-top layer last time, 4.2-top layer next time
The specific embodiment
Embodiment 1
With poplar peeling, flaking, flaking length 180mm, thickness 0.6mm, mean breadth 20mm, with flaking in 150 ℃ of dryings, the moisture of flaking is not higher than 6% after dry, screen qualified flaking, afterwards applying glue, adhesive is the PMDI isocyanates, add insect-proof agent in the Process of Applying Glue, insect-proof agent is Radaluem FHP-60.Adopt three layers of orienting spreading technique, see Fig. 1, the superiors 1.1 and orlop 1.2 are the layer of vertically mating formation, sandwich layer 2.1 is the layer of laterally mating formation, and the superiors-sandwich layer-undermost mass ratio is 27.5: 45: 27.5, sprays in advance steaming after mating formation, then carry out the moulding of high tonnage continuous hot-press, the continuous press surface pressure is 2.0Mpa, hot pressing back balance internal stress, and get final product.The density of product is 0.81g/cm
3, thickness is 12mm, water content is 4.8%, vertically MOR 84Mpa; Bending strength 35Mpa; Longitudinal modulus of elasticity 11000Mpa; Transverse modulus of elasticity 3520Mpa.
Embodiment 2
With poplar and brush wood peeling thereof, flaking, flaking length 160mm, thickness 0.8mm, mean breadth 35mm, with flaking in 170 ℃ of dryings, the moisture of flaking is not higher than 6% after dry, screen qualified flaking, afterwards applying glue, adhesive is melamine urea-formaldehyde resin, add insect-proof agent in the Process of Applying Glue, insect-proof agent is Meganium2000.Adopt three layers of orienting spreading technique, see Fig. 1, the superiors 1.1 and orlop 1.2 are the layer of vertically mating formation, sandwich layer 2.1 is the layer of laterally mating formation, and the superiors-sandwich layer-undermost mass ratio is 32.5: 35: 32.5, sprays in advance steaming after mating formation, then carry out the moulding of high tonnage continuous hot-press, the continuous press surface pressure is 3.1Mpa, hot pressing back balance internal stress, and get final product.The density of product is 0.80g/cm
3, thickness is 14mm, water content is 4.9%, vertically MOR 85Mpa; Bending strength 35Mpa; Longitudinal modulus of elasticity 10400Mpa; Transverse modulus of elasticity 3420Mpa.
Embodiment 3
With poplar and brush wood peeling thereof, flaking, flaking length 200mm, thickness 0.7mm, mean breadth 30mm, with flaking in 160 ℃ of dryings, the moisture of flaking is not higher than 6% after dry, screen qualified flaking, afterwards applying glue, adhesive is Lauxite, add insect-proof agent in the Process of Applying Glue, insect-proof agent is Meganium3000.Adopt three layers of orienting spreading technique, see Fig. 1, the superiors 1.1 and orlop 1.2 are the layer of vertically mating formation, sandwich layer 2.1 is the layer of laterally mating formation, and the superiors-sandwich layer-undermost mass ratio is 30: 40: 30, sprays in advance steaming after mating formation, then carry out the moulding of high tonnage continuous hot-press, the continuous press surface pressure is 3.4Mpa, hot pressing balance back balance internal stress, and get final product.The density of product is 0.85g/cm
3, thickness is 30mm, water content is 4.8%, vertically MOR 90Mpa; Bending strength 40Mpa; Longitudinal modulus of elasticity 11000Mpa; Transverse modulus of elasticity 4000Mpa.
Embodiment 4
Leaflet is pressed peeling, flaking, flaking length 180mm, thickness 0.6mm, mean breadth 20mm, with flaking in 150 ℃ of dryings, the moisture of flaking is not higher than 6% after dry, screen qualified flaking, afterwards applying glue, adhesive are phenolic resins, adopt five layers of orienting spreading technique, see Fig. 2, upper epidermis 3.1, lower top layer 3.2 and intermediate layer 3.3 are the layer of vertically mating formation, and last time, top layer 4.1 and next top layer 4.2 were the layer of laterally mating formation, and the mass ratio on upper epidermis-last time top layer-intermediate layer-next top layer-lower top layer is 25: 20: 10: 20: 25.Spray in advance steaming after mating formation, then carry out the moulding of high tonnage continuous hot-press, the continuous press surface pressure is 4.0Mpa, hot pressing balance back balance internal stress, and get final product.The density of product is 0.85g/cm
3, thickness is 28mm, water content is 4.9%, vertically MOR 88Mpa; Bending strength 43Mpa; Longitudinal modulus of elasticity 11800Mpa; Transverse modulus of elasticity 3945Mpa.
Embodiment 5
With poplar and pine peeling, flaking, flaking length 160mm, thickness 0.8mm, mean breadth 35mm, with flaking in 170 ℃ of dryings, the moisture of flaking is not higher than 6% after dry, screen qualified flaking, afterwards applying glue, adhesive are melamine urea aldehyde phenolic resins, adopt five layers of orienting spreading technique, see Fig. 2, upper epidermis 3.1, lower top layer 3.2 and intermediate layer 3.3 are the layer of vertically mating formation, and last time, top layer 4.1 and next top layer 4.2 were the layer of laterally mating formation, and the mass ratio on upper epidermis-last time top layer-intermediate layer-next top layer-lower top layer is 22.5: 22.5: 10: 22.5: 22.5.Spray in advance steaming after mating formation, then carry out the moulding of high tonnage continuous hot-press, the continuous press surface pressure is 5.0Mpa, hot pressing balance back balance internal stress, and get final product.The density of product is 0.9g/cm
3, thickness is 20mm, water content is 4.9%, vertically MOR 91Mpa; Bending strength 45Mpa; Longitudinal modulus of elasticity 12500Mpa; Transverse modulus of elasticity 4015Mpa.
Embodiment 6
With poplar and hardwood peeling, flaking, flaking length 200mm, thickness 0.7mm, mean breadth 30mm, with flaking in 160 ℃ of dryings, the moisture of flaking is not higher than 6% after dry, screen qualified flaking, afterwards applying glue, adhesive is bean gum, add insect-proof agent in the Process of Applying Glue, insect-proof agent is Meganium4000.Adopt five layers of orienting spreading technique, see Fig. 2, upper epidermis 3.1, lower top layer 3.2 and intermediate layer 3.3 are the layer of vertically mating formation, last time, top layer 4.1 and next top layer 4.2 were the layer of laterally mating formation, and the mass ratio on upper epidermis-last time top layer-intermediate layer-next top layer-lower top layer is 25: 17.5: 15: 17.5: 25.Spray in advance steaming after mating formation, then carry out the moulding of high tonnage continuous hot-press, the continuous press surface pressure is 4.0Mpa, hot pressing balance back balance internal stress, and get final product.The density of product is 0.80g/cm
3, thickness is 25mm, water content is 4.7%, vertically MOR 85Mpa; Bending strength 36Mpa; Longitudinal modulus of elasticity 10900Mpa; Transverse modulus of elasticity 3510Mpa.
With poplar peeling, flaking, flaking length 120mm, thickness 0.5mm, mean breadth 5mm, with flaking in 150 ℃ of dryings, the moisture of flaking is not higher than 6% after dry, screen qualified flaking, afterwards applying glue, adhesive is the PMDI isocyanates, add insect-proof agent in the Process of Applying Glue, insect-proof agent is Radaluem FHP-60.Adopt three layers of orienting spreading technique, see Fig. 1, the superiors 1.1 and orlop 1.2 are the layer of vertically mating formation, sandwich layer 2.1 is the layer of laterally mating formation, and the superiors-sandwich layer-undermost mass ratio is 25: 50: 25, sprays in advance steaming after mating formation, then carry out the moulding of high tonnage continuous hot-press, the continuous press surface pressure is 2.0Mpa, hot pressing balance back balance internal stress, and get final product.The density of product is 0.60g/cm
3, thickness is 6mm, water content is 5%, vertically MOR 65Mpa; Bending strength 24Mpa; Longitudinal modulus of elasticity 5500Mpa; Transverse modulus of elasticity 2000Mpa.
Embodiment 8
With poplar and brush wood peeling thereof, flaking, flaking length 220mm, thickness 0.9mm, mean breadth 50mm, with flaking in 170 ℃ of dryings, the moisture of flaking is not higher than 6% after dry, screen qualified flaking, afterwards applying glue, adhesive is melamine urea-formaldehyde resin, add insect-proof agent in the Process of Applying Glue, insect-proof agent is Meganium2000.Adopt three layers of orienting spreading technique, see Fig. 1, the superiors 1.1 and orlop 1.2 are the layer of vertically mating formation, sandwich layer 2.1 is the layer of laterally mating formation, and the superiors-sandwich layer-undermost mass ratio is 35: 30: 35, sprays in advance steaming after mating formation, then carry out the moulding of high tonnage continuous hot-press, the continuous press surface pressure is 3.0Mpa, hot pressing balance back balance internal stress, and get final product.The density of product is 0.68g/cm
3, thickness is 12mm, water content is 5%, vertically MOR 71Mpa; Bending strength 25Mpa; Longitudinal modulus of elasticity 7540Mpa; Transverse modulus of elasticity 2810Mpa.
Embodiment 9
Leaflet is pressed peeling, flaking, flaking length 140mm, thickness 0.6mm, mean breadth 10mm, with flaking in 150 ℃ of dryings, the moisture of flaking is not higher than 6% after dry, screen qualified flaking, afterwards applying glue, adhesive are phenolic resins, adopt five layers of orienting spreading technique, see Fig. 2, upper epidermis 3.1, lower top layer 3.2 and intermediate layer 3.3 are the layer of vertically mating formation, and last time, top layer 4.1 and next top layer 4.2 were the layer of laterally mating formation, and the mass ratio on upper epidermis-last time top layer-intermediate layer-next top layer-lower top layer is 28: 15: 14: 15: 28.Spray in advance steaming after mating formation, then carry out the moulding of high tonnage continuous hot-press, the continuous press surface pressure is 4.0Mpa, hot pressing balance back balance internal stress, and get final product.The density of product is 0.72g/cm
3, thickness is 15mm, water content is 4.8%, vertically MOR 75Mpa; Bending strength 28Mpa; Longitudinal modulus of elasticity 8321Mpa; Transverse modulus of elasticity 2850Mpa.
Embodiment 10
With poplar and pine peeling, flaking, flaking length 210mm, thickness 0.8mm, mean breadth 40mm, with flaking in 170 ℃ of dryings, the moisture of flaking is not higher than 6% after dry, screen qualified flaking, afterwards applying glue, adhesive are melamine urea aldehyde phenolic resins, adopt five layers of orienting spreading technique, see Fig. 2, upper epidermis 3.1, lower top layer 3.2 and intermediate layer 3.3 are the layer of vertically mating formation, and last time, top layer 4.1 and next top layer 4.2 were the layer of laterally mating formation, and the mass ratio on upper epidermis-last time top layer-intermediate layer-next top layer-lower top layer is 20: 25: 10: 25: 20.Spray in advance steaming after mating formation, then carry out the moulding of high tonnage continuous hot-press, the continuous press surface pressure is 4.5Mpa, hot pressing balance back balance internal stress, and get final product.The density of product is 0.75g/cm
3, thickness is 20mm, water content is 5%, vertically MOR 78Mpa; Bending strength 29Mpa; Longitudinal modulus of elasticity 8815Mpa; Transverse modulus of elasticity 2900Mpa.
Claims (10)
1. used for bottom plate of container directional structure board, it is characterized in that, described directional structure board adopts three layers and above orienting spreading, described orienting spreading is alternately arranged with the layer of laterally mating formation for the layer of vertically mating formation and is mated formation, the upper epidermis of directional structure board and lower top layer are the layer of vertically mating formation, and the layer of vertically mating formation is 50 ~ 70:50 ~ 30 with the mass ratio of laterally mating formation layer.
2. directional structure board according to claim 1 is characterized in that, the described layer of vertically mating formation is 55 ~ 65:45 ~ 35 with the mass ratio of laterally mating formation layer.
3. directional structure board according to claim 1, it is characterized in that, described directional structure board is three layers orienting spreading, and the superiors and orlop are the layer of vertically mating formation, sandwich layer is the layer of laterally mating formation, and the superiors-sandwich layer-undermost mass ratio is 25 ~ 35:30 ~ 50:25 ~ 35.
4. directional structure board according to claim 3 is characterized in that, the described the superiors-sandwich layer-undermost mass ratio is 27.5 ~ 32.5:35 ~ 45:27.5 ~ 32.5.
5. directional structure board according to claim 1, it is characterized in that, described directional structure board is five layers orienting spreading, upper epidermis, lower top layer and intermediate layer are the layer of vertically mating formation, last time, top layer and next top layer were the layer of laterally mating formation, and the mass ratio on upper epidermis-last time top layer-intermediate layer-next top layer-lower top layer is 20 ~ 28:15 ~ 25:10 ~ 14:15 ~ 25:20 ~ 28.
6. directional structure board according to claim 5 is characterized in that, the mass ratio on described upper epidermis-last time top layer-intermediate layer-next top layer-lower top layer is 22.5 ~ 25:17.5 ~ 22.5:10 ~ 15:17.5 ~ 22.5:22.5 ~ 25.
7. each described directional structure board is characterized in that according to claim 1-6, and described directional structure board is for taking in the intermediate layer as the symmetrical structure of the plane of symmetry.
8. each described directional structure board is characterized in that according to claim 1-6, and orienting spreading is 120-220mm with flaking length, thickness 0.5-0.9mm, width 5-50mm.
9. directional structure board according to claim 8 is characterized in that, orienting spreading is 160-200mm with flaking length, thickness 0.6-0.8mm, width 20-35mm.
10. each described directional structure board is characterized in that according to claim 1-6, and the thickness of described directional structure board is 6-30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220273756 CN202685019U (en) | 2012-06-12 | 2012-06-12 | Oriented structural plate for container soleplate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220273756 CN202685019U (en) | 2012-06-12 | 2012-06-12 | Oriented structural plate for container soleplate |
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| CN202685019U true CN202685019U (en) | 2013-01-23 |
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| CN 201220273756 Expired - Fee Related CN202685019U (en) | 2012-06-12 | 2012-06-12 | Oriented structural plate for container soleplate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756403A (en) * | 2012-06-12 | 2012-10-31 | 康欣新材料科技股份有限公司 | Oriented structural board for container soleplate |
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2012
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756403A (en) * | 2012-06-12 | 2012-10-31 | 康欣新材料科技股份有限公司 | Oriented structural board for container soleplate |
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Granted publication date: 20130123 Termination date: 20200612 |
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| CF01 | Termination of patent right due to non-payment of annual fee |