CN112606359A - Composite forming die for outdoor garden solid pore-free floor - Google Patents
Composite forming die for outdoor garden solid pore-free floor Download PDFInfo
- Publication number
- CN112606359A CN112606359A CN202011524942.1A CN202011524942A CN112606359A CN 112606359 A CN112606359 A CN 112606359A CN 202011524942 A CN202011524942 A CN 202011524942A CN 112606359 A CN112606359 A CN 112606359A
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- Prior art keywords
- core rod
- foaming material
- die
- flow channel
- pvc foaming
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- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 239000007787 solid Substances 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 79
- 238000005187 foaming Methods 0.000 claims abstract description 56
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 28
- 239000004917 carbon fiber Substances 0.000 claims abstract description 28
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000498 cooling water Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000005452 bending Methods 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 238000001125 extrusion Methods 0.000 claims description 19
- 238000009408 flooring Methods 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract description 6
- 230000007704 transition Effects 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract 1
- 239000011162 core material Substances 0.000 description 41
- 239000010410 layer Substances 0.000 description 25
- 239000012792 core layer Substances 0.000 description 6
- 239000002023 wood Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 238000013329 compounding Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a composite forming die for solid pore-free floors in outdoor gardens, which comprises a die body, a transition plate II, a transition plate I, a support, a mouth die II, a mouth die I, a water jacket II, a water jacket I, a cavity and a core rod, wherein a section of bending flow channel A is arranged at the front end of a wood-plastic foaming material injection flow channel, and the included angle between the bending flow channel A and a central plane is 60-62 degrees; the front end of the carbon fiber sheet penetrating channel is provided with a bent flow passage B; a circularly flowing cooling water hole is also formed in the tip part, close to the bent flow channel B, in the second neck ring die, the upper core rod and the lower core rod divide a PVC foaming material circulation channel in the inner layer into an upper PVC foaming material flow channel, a middle PVC foaming material flow channel and a lower PVC foaming material flow channel, and a plurality of exhaust pore channels are formed in the upper core rod and the lower core rod; the forming die not only solves the biggest defects of the existing die, but also achieves the effect of reducing material loss and simultaneously not reducing product performance of the formed product.
Description
Technical Field
The invention relates to the technical field of profile extrusion forming dies, in particular to a composite forming die for an outdoor garden solid pore-free floor.
Background
At present, in outdoor gardens and other outdoor public places, outdoor wood-plastic floors with high strength and good tensile strength are paved in many places, the floors belong to composite extrusion forming floors, the floors are usually formed by compounding an outer layer, an inner layer and a middle carbon fiber layer, the three-layer composite forming is manufactured by extruding wood-plastic materials through an extrusion forming die, due to the limitation of the structural design of the extrusion forming die, a produced floor product has a plurality of small air holes at the positions close to two sides of the middle carbon fiber layer, the produced product has the small air holes which are not obvious enough at the beginning of use, but because the floor is used in the environment with relatively severe conditions such as outdoor environment, the floor is frequently treaded by people, the abrasion loss is very serious, the floor with the small air holes is easy to be stepped and collapsed for a little time and has local damage, and gradually develop into large-area destruction; the extrusion forming die for producing the outdoor garden wood-plastic floor simultaneously has the advantages that due to the design defects of the extrusion forming die, when the extrusion is carried out, carbon fiber penetrating pieces do not enter the die at the beginning, wood-plastic materials on the inner layer and the outer layer often easily run out of gaps of a die and are extruded, and the waste of the materials is caused.
Disclosure of Invention
The invention aims to solve the problems of the extrusion forming die of the outdoor garden composite floor which is commonly used at present, and provides the composite forming die for the outdoor garden solid pore-free floor.
The specific scheme of the invention is as follows: a composite forming die for solid pore-free floors in outdoor gardens comprises a die body, a transition plate II, a transition plate I, a support, a die II, a die I, a water jacket II, a water jacket I, a die cavity and a core rod, wherein the core rod is positioned in the die cavity, the length of the core rod extends from the support to the die I, the end surface of the first neck ring die close to the second neck ring die is provided with wood plastic foaming material injection flow channels for the outer layer of the composite floor on the upper and lower sides of the cavity, carbon fiber threading channels are symmetrically arranged up and down, the carbon fiber threading channels obliquely and sequentially penetrate through the bracket and the second neck ring die to reach the core rod and the composite part of the mouth part of the outer layer wood plastic foaming material injection flow channel, the middle of the cavity is used for PVC foaming material circulation of the inner layer of the composite floor, a section of bending flow channel A is arranged at the front end of the wood plastic foaming material injection flow channel, and the included angle between the bending flow channel A and the central plane is 60-62 degrees; the front end of the carbon fiber threading channel is provided with a bending flow channel B, and the included angle between the bending flow channel B and the central plane is 30 degrees; a cooling water hole which circularly flows is also arranged at the tip part of the inner part of the second neck mold close to the bent flow passage B and is communicated with an external cooling water source; the mold cavity is divided by the core rod, the core rod is formed by buckling an upper core rod and a lower core rod, the PVC foaming material circulation channel of the inner layer is divided into an upper PVC foaming material flow channel, a middle PVC foaming material flow channel and a lower PVC foaming material flow channel by the upper core rod and the lower core rod, a plurality of exhaust ducts are arranged in the upper core rod and the lower core rod, one ends of the exhaust ducts are communicated with the front end face of the upper core rod or the lower core rod, and the other ends of the exhaust ducts extend to the support and are discharged outwards from the support.
Furthermore, the front end of the cross section of the cooling water hole is in a triangular tip shape, the rear end of the cross section of the cooling water hole is in an arc shape, and the triangular tip shape is arranged towards the front end of the bent flow passage B.
Furthermore, the PVC foaming material flow passage is divided into a front section and a rear section, wherein the upper and lower width of the front section is smaller than that of the rear section, and the PVC foaming material flows from the rear section to the front section to form extrusion on the PVC foaming material.
Furthermore, the upper core rod and the lower core rod are buckled and connected through the inner core rod foot.
The die has the following beneficial effects on the existing composite extrusion forming die for the solid composite floor:
1. the mould is improved subversively, so that the mould can be extruded and molded to produce the floor consisting of the PVC foaming material with the normal wood plastic foaming material as the outer layer, the carbon fiber layer as the middle layer and the variegated material as the inner layer, and all properties of the produced product are not attenuated on the premise of saving the cost.
2. The outdoor garden solid floor produced by the mold has higher strength, tensile resistance and shrinkage resistance than before.
3. Compared with the solid floor produced by the prior mold, the solid floor produced by the mold has lighter unit mass and saves more materials on the premise of not reducing the performance.
4. The novel outdoor garden floor produced by the mold has the advantages of strong weather resistance, shrinkage resistance, water resistance, high impact resistance, low deformation rate, light weight and low cost, and meets the national relevant environmental protection requirements.
Drawings
FIG. 1 is a schematic cross-sectional structure view of an outdoor garden solid floor produced by the mold of the invention;
FIG. 2 is a schematic view of the overall main cross-sectional structure of the mold of the present invention;
FIG. 3 is a schematic view of a partial end view of a die of the present invention;
FIG. 4 is a side view schematic diagram of a second die of the present invention;
FIG. 5 is a schematic view of the second die of the present invention in a front view;
fig. 6 is a schematic view of the general state of the die of the present invention when in use.
In the figure: 1-outer layer wood plastic foaming material, 2-interlayer carbon fiber high-strength sheet material, 3-core layer PVC high-foaming regeneration material, 4-water jacket I, 5-water jacket II, 6-exhaust duct, 7-upper core rod, 8-bending flow channel A, 9-wood plastic foaming material injection flow channel, 10-die II, 11-carbon fiber threading channel, 12-carbon fiber high-strength sheet material, 13-transition plate I, 14-upper PVC foaming material flow channel, 15-transition plate II, 16-die body, 17-lower PVC foaming flow channel, 18-rear section, 19-front section, 20-cooling water hole, 21-bending flow channel B, 22-lower core rod, 23-core rod foot, 24-carbon fiber sheet material winding drum, 25-composite forming die, 26-support, 27-die I, and 28-die cavity.
Detailed Description
The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when products of the present invention are used, and are only used for convenience in describing the present invention or simplifying the description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed in specific orientations, or be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-5, the invention is a composite forming die for solid pore-free floors in outdoor gardens, comprising a die body 16, a transition plate II 15, a transition plate I13, a support 26, a die II 10, a die I27, a water jacket II 5, a water jacket I4, a cavity and a core rod, wherein the core rod is positioned in the cavity and the length of the core rod extends from the support to the die I, wood-plastic foaming material injection runners 9 for the outer layer of a composite floor are arranged on the upper and lower sides of the cavity on the end surface of the die II adjacent to the die I, carbon fiber threading channels 11 are symmetrically arranged up and down and obliquely and sequentially penetrate through the support and the die II to reach the composite part of the core rod and the mouth part of the outer layer wood-plastic foaming material injection runner, the middle of the cavity 28 is used for PVC foaming material circulation of the inner layer of the composite floor, a section of a bent runner A8 is arranged at, the included angle between the bent flow passage A and the central plane is 60-62 degrees; the front end of the carbon fiber threading channel is provided with a bent flow passage B21, and the included angle between the bent flow passage B and the central plane is 30 degrees; a cooling water hole 20 which circularly flows is also arranged at the tip part of the inner part of the second mouth die close to the bent flow passage B and is communicated with an external cooling water source; the core rod divides the cavity, the core rod is formed by buckling an upper core rod 7 and a lower core rod 22, the upper core rod and the lower core rod together divide a PVC foaming material circulation channel of the inner layer into an upper PVC foaming material flow channel 14, a middle PVC foaming material flow channel and a lower PVC foaming material flow channel 17, a plurality of exhaust ducts 6 are arranged in the upper core rod and the lower core rod, one ends of the exhaust ducts are communicated with the front end surface of the upper core rod or the lower core rod, and the other ends of the exhaust ducts extend to the support and are discharged from the support.
Furthermore, in this embodiment the cross-sectional shape front end in cooling water hole is triangle point shape, and the cross-sectional shape rear end in cooling water hole is the arc shape, and wherein the front end setting of triangle point shape orientation bending flow channel B.
Further, in the present embodiment, the PVC foam runner is divided into a front section 19 and a rear section 18, wherein the upper and lower width of the front section is smaller than the upper and lower width of the rear section, and the PVC foam flows from the rear section to the front section to form an extrusion on the PVC foam.
Further, in this embodiment, the upper core rod and the lower core rod are connected by buckling through the inner core rod leg 23.
The outer wood-plastic foaming material is injected into the runner from the wood-plastic foaming material and enters the die, the sheet enters the die from the carbon fiber sheet penetrating channel, the core layer PVC high-foaming reclaimed material enters from the inner PVC foaming material runner, the three strands of materials are converged inside the die, and the core layer PVC high-foaming reclaimed material is divided into three strands to be extruded and enter for compounding.
When a composite forming die is used for extrusion production, when PVC high-foaming recycled materials are combined with carbon fiber sheets and wood-plastic foaming materials, air holes are formed for breaking walls, irregular small broken holes appear on the cross section of a solid floor product, and the attractiveness and the strength of the product are affected. Greatly influences the service life of the die, and is a great innovation of the die.
When the PVC high-foaming recycled material of the core layer is discharged and combined with the wood-plastic foaming material of the outer layer and the high-strength sheet material of the interlayer carbon fiber, circulating cooling water can be introduced into the cooling water holes to carry out micro-cooling on the sheet material coming from the front tip part of the bending flow channel B and the mixed material after the water is introduced (wherein cooling gas can also be introduced for carrying out blow-cooling), so that the discharged material is slightly skinned, the discharged material is more regular in forming, and the combination with the outer layer fabric and the carbon fiber sheet material is more facilitated.
Through repeated tests, the angle of the carbon fiber penetrating high-strength sheet is 30 degrees, so that the resistance when the sheet is combined with the core layer PVC high-foaming recycled material is greatly reduced, the bevel angle degree when the outer layer wood-plastic foaming material is combined with the core material is 60 degrees, if the bevel angle degree is too small, the processing space of a die is not enough, the strength and the service life of steel materials are reduced after the die is processed for many times, the die is easy to extrude and deform to cause die scrap, if the bevel angle is too large, the resistance when multiple material flows are combined is too large, the material flows are not easy to form the requirement which meets the extrusion mechanics, the material flows are retained at the junction of the three material flows, paste is formed after long time, meanwhile, the material can be turned over from the position where the die cavity cuts through the sheet, normal extrusion production can not be realized, through repeated tests, the 60-62 degree bevel angle can achieve a better extrusion effect, and meanwhile, the mold cavity is cut, the carbon fiber sheet penetrates into the mold cavity through the cut space, if the sheet penetrating degree is too large, the sheet penetrating resistance is increased, the core layer PVC high-foaming material and the outer layer wood-plastic foaming material can flow out of the mold through the cut space of the sheet, the sheet is easy to deform and tear, and a product cannot be extruded normally.
After mechanical calculation and repeated multiple scheme debugging tests, the obtained feeding degree of the outer layer wood-plastic foaming material is optimal when being 60 degrees, so that the fabric can be ensured to extrude carbon fibers and core materials compactly, and can also form forward extrusion force on the premise of extrusion compactness, two material flows are formed to drive carbon fiber sheets to be extruded forwards together, and the normal extrusion production requirement of a die is met.
Fig. 6 is a schematic view of the installation state of the die in use, wherein carbon fiber high-strength sheets are led out from an upper carbon fiber sheet reel and a lower carbon fiber sheet reel through related guide mechanisms, enter a bracket and a die II and are finally converged with other two material flows in the die cavity of the die to be compounded.
The invention can reduce the requirement on the internal core material by subversive improvement design, namely the core material can be used for replacing the broken variegated material of the PVC foaming product produced by the past normal production, but can also meet the corresponding performance requirement, so that the produced outdoor garden floor product has strong weather resistance, shrinkage resistance, water resistance, high impact resistance, low deformation rate, light weight and greatly reduced cost, meets the national environmental protection requirement and is more suitable for mass popularization.
Claims (4)
1. The utility model provides a compound forming die for solid pore-free floor in outdoor gardens, includes the die body, crosses cab apron two, crosses cab apron one, support, bush two, bush one, water jacket two, water jacket one, die cavity and plug, and the plug is arranged in the die cavity and length extends to bush one from the support, the terminal surface department that is close to bush one on bush two is provided with the wood-plastic foaming material injection runner that is used for the outer layer of laminate flooring in the upper and lower both sides that are located the die cavity, still is equipped with the carbon fiber threading passageway of upper and lower symmetrical arrangement, and the carbon fiber threading passageway slant passes support and bush two in proper order and reaches the plug and outer wood-plastic foaming material injection runner oral area complex position, the centre of die cavity is used for the PVC foaming material circulation of the inlayer of laminate flooring, its: the front end of the injection runner of the wood-plastic foaming material is provided with a section of bent runner A, and the included angle between the bent runner A and the central plane is 60-62 degrees; the front end of the carbon fiber threading channel is provided with a bending flow channel B, and the included angle between the bending flow channel B and the central plane is 30 degrees; a cooling water hole which circularly flows is also arranged at the tip part of the inner part of the second neck mold close to the bent flow passage B and is communicated with an external cooling water source; the mold cavity is divided by the core rod, the core rod is formed by buckling an upper core rod and a lower core rod, the PVC foaming material circulation channel of the inner layer is divided into an upper PVC foaming material flow channel, a middle PVC foaming material flow channel and a lower PVC foaming material flow channel by the upper core rod and the lower core rod, a plurality of exhaust ducts are arranged in the upper core rod and the lower core rod, one ends of the exhaust ducts are communicated with the front end face of the upper core rod or the lower core rod, and the other ends of the exhaust ducts extend to the support and are discharged outwards from the support.
2. The composite forming die for the outdoor garden solid pore-free floor as claimed in claim 1, wherein: the front end of the cross section of the cooling water hole is in a triangular tip shape, the rear end of the cross section of the cooling water hole is in an arc shape, and the triangular tip shape faces the front end of the bent flow channel B.
3. The composite forming die for the outdoor garden solid pore-free floor as claimed in claim 1, wherein: the middle PVC foaming material flow passage is divided into a front section and a rear section, wherein the upper and lower width of the front section is smaller than that of the rear section, and the PVC foaming material flows to the front section from the rear section to form extrusion on the PVC foaming material.
4. The composite forming die for the outdoor garden solid pore-free floor as claimed in claim 1, wherein: go up the plug and carry out the lock through inside plug foot between the plug down and connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011524942.1A CN112606359A (en) | 2020-12-22 | 2020-12-22 | Composite forming die for outdoor garden solid pore-free floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011524942.1A CN112606359A (en) | 2020-12-22 | 2020-12-22 | Composite forming die for outdoor garden solid pore-free floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112606359A true CN112606359A (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011524942.1A Pending CN112606359A (en) | 2020-12-22 | 2020-12-22 | Composite forming die for outdoor garden solid pore-free floor |
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| Country | Link |
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| CN (1) | CN112606359A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113459454A (en) * | 2021-06-09 | 2021-10-01 | 安徽森泰木塑科技地板有限公司 | Reinforced foamed floor, extrusion die and equipment set for preparing same |
| CN113844004A (en) * | 2021-10-27 | 2021-12-28 | 安吉正源塑木装饰材料有限公司 | Preparation mold and preparation method of PVC (polyvinyl chloride) foamed floor |
| CN114619741A (en) * | 2022-03-31 | 2022-06-14 | 沈新华 | Reinforced plate and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113459454A (en) * | 2021-06-09 | 2021-10-01 | 安徽森泰木塑科技地板有限公司 | Reinforced foamed floor, extrusion die and equipment set for preparing same |
| CN113459454B (en) * | 2021-06-09 | 2022-03-11 | 安徽森泰木塑科技地板有限公司 | Reinforced foamed floor, extrusion die and equipment set for preparing same |
| WO2022257233A1 (en) * | 2021-06-09 | 2022-12-15 | 安徽森泰木塑科技地板有限公司 | Reinforced foaming floor, and extrusion die and equipment group for preparation of reinforced foaming floor |
| CN113844004A (en) * | 2021-10-27 | 2021-12-28 | 安吉正源塑木装饰材料有限公司 | Preparation mold and preparation method of PVC (polyvinyl chloride) foamed floor |
| CN113844004B (en) * | 2021-10-27 | 2023-10-13 | 安吉正源塑木装饰材料有限公司 | Preparation mold and preparation method of PVC (polyvinyl chloride) foamed floor |
| CN114619741A (en) * | 2022-03-31 | 2022-06-14 | 沈新华 | Reinforced plate and preparation method thereof |
| CN114619741B (en) * | 2022-03-31 | 2023-08-25 | 沈新华 | Reinforced board and preparation method thereof |
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