CN108908535B - Production method of flame-retardant plate - Google Patents
Production method of flame-retardant plate Download PDFInfo
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- CN108908535B CN108908535B CN201810832002.5A CN201810832002A CN108908535B CN 108908535 B CN108908535 B CN 108908535B CN 201810832002 A CN201810832002 A CN 201810832002A CN 108908535 B CN108908535 B CN 108908535B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/06—Manufacture of central layers; Form of central layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/10—Butting blanks of veneer; Joining same along edges; Preparatory processing of edges, e.g. cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2240/00—Purpose of the treatment
- B27K2240/30—Fireproofing
Abstract
The invention discloses a production method of a flame-retardant plate, which comprises the following steps: (1) selecting raw materials; (2) rotary cutting; (3) preparing a flame-retardant solution; (4) high-temperature cooking; (5) naturally cooling by air; (6) grading the core plates, and trapping the first-stage plate coil for later use; (7) repairing the secondary plate and the tertiary plate; (8) coating glue, namely coating the front surface and the back surface of the secondary plate with the glue and then respectively bonding a high-molecular flame-retardant fiber layer on the surfaces; (9) and (3) primary pressing: laying the second-level plates and the third-level plates at intervals, then laying the first-level plates as panels on the uppermost layer and the lowermost layer, and then pressing by using a cold press; (10) spraying a layer of reinforced glass fiber layer on the surface of the laminated multi-layer flame-retardant board for surface coating; (11) and paving a decorative layer on the front surface of the multi-layer flame-retardant plate for hot pressing. The flame-retardant board produced by the invention has the flame-retardant effect 3-5 times that of the existing flame-retardant board on the market, completely realizes the flame-retardant characteristic of the board, and has high strength and wide application range.
Description
Technical Field
The invention relates to the technical field of flame-retardant plate processing, in particular to a production method of a flame-retardant plate.
Background
The fire-retardant board, also known as fire-retardant board, fire-retardant plywood, etc. is a three-layer or multi-layer plywood made up by using log through the processes of rotary cutting to obtain wood chips or planing to obtain small wood blocks, fire-retarding treatment of wood chips and gluing them with adhesive, and is made up by using odd layers of wood chips and making the fibre directions of adjacent layers of wood chips mutually perpendicular and gluing them together.
The fire-retardant board produced by using wood as main raw material can overcome the defect of wood, greatly improve and raise the physical mechanical property of wood, and the fire-retardant plywood also overcomes the defect of easy combustion of common plywood, so that it can effectively raise the fire-retardant property of plywood.
The flame-retardant effect of the flame-retardant plate in the existing market is changed to a certain extent. However, the flame retardant effect is still difficult to be completely realized, so that a new method for producing the flame retardant plate is urgently needed, and the defects of the flame retardant plate in the prior art are overcome.
Disclosure of Invention
The invention aims to provide a production method of a flame-retardant plate, which ensures that the flame-retardant plate can completely realize the flame-retardant function, and has high strength and wide application range.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for producing a flame retardant panel, comprising the steps of:
(1) selecting raw materials: selecting imported poplar, radiata pine or eucalyptus, and then cooking and softening the raw materials;
(2) rotary cutting: feeding the raw material obtained in the step (1) into a rotary cutter for rotary cutting, and rotary-cutting core plates with different thicknesses according to production requirements;
(3) preparing a flame-retardant solution; the solution comprises a flame retardant, water and melamine, wherein the weight ratio of the flame retardant to the water to the melamine is 0.5:2.5:1, and the flame retardant comprises the following raw materials in parts by weight: 5-12 parts of ammonium dihydrogen phosphate; 1-3.5 parts of diammonium hydrogen phosphate, 0.5-1.5 parts of kaolin, 0.1-1.2 parts of rare earth, 1-3.5 parts of cyclodextrin, 0.5-2.5 parts of chitosan and 2.5-8.5 parts of montmorillonite nano composite material, and the pH value of the solution is kept to be 4.5-5.5;
(4) high-temperature cooking: storing the prepared solution in a cooking pool, then placing a single core plate in the cooking pool in a balanced and vertical manner at intervals of 2mm, soaking the core plate in the solution for 1 hour, heating the solution to raise the temperature of the solution to 60-70 ℃, keeping the core plate cooked in the solution at 60-70 ℃ for 30-40 hours, then gradually cooling, gradually cooling at the cooling frequency of 5 ℃ per hour until the temperature of the water is lower than 5 ℃, then soaking the plate blank for 5-10 hours until the flame retardant components completely permeate into the wood fibers of the core plate, and taking out the plate blank;
(5) storing the core plate taken out in a standing mode, and then air-drying the core plate in a natural air-cooling mode to keep the water content of the core plate at 10% -14%;
(6) after the core board is dried, the surface quality of the core board is checked by workers according to an eye measurement method, the core board is divided into a panel and a middle core board according to the surface evenness of the core board, and the panel is directly rolled into a bundle by using a roller device for standby;
(7) after the surface of the middle core plate is finished to improve the surface flatness, a ceramic fiber layer is bonded on the outer surface of the middle core plate, then a carbon fiber layer is sprayed on the outer surface of the ceramic fiber layer, and then a polymer glass fiber layer is coated on the outer surface of the carbon fiber layer;
(8) gluing: the middle core plates are stacked in the length direction and spliced, the splicing process is that the toothed six-spliced broken seam is spliced in an unlimited extension mode, then glue is coated on the surface of the polymer glass fiber layer of the spliced middle core plates, and the total weight of the glue on the front surface and the back surface of the middle core plates is ensured to be 1.1 kg;
(9) and (3) laminating: laying layers on the middle core board according to the processing requirement, then laying the panels on the upper surface of the middle core board, and pre-pressing by using a cold press to form a multi-layer flame-retardant board;
(10) spraying a silver ion layer on the surface of the laminated multi-layer flame retardant plate;
(11) and paving the decorative layer on the front surface of the multi-layer flame-retardant plate, then placing the multi-layer flame-retardant plate on a hot press for hot pressing, continuously hot-pressing the multi-layer flame-retardant plate for 30 minutes by adopting a high temperature of 130 ℃, and hot-pressing and molding the multi-layer flame-retardant plate to obtain the flame-retardant plate.
The flame retardant comprises the following raw materials in parts by weight: 6.5 parts of ammonium dihydrogen phosphate; 2.5 parts of diammonium hydrogen phosphate, 0.95 part of kaolin, 0.2 part of rare earth, 2.5 parts of cyclodextrin, 1.5 parts of chitosan and 5.5 parts of montmorillonite nano composite material, wherein the pH value of the solution is 5.
Wherein the cooking pool in the step (4) comprises: the water tank comprises a water tank, a longitudinal telescopic driving device, a support frame and a placing frame, wherein the support frame is arranged right above the water tank, a rectangular array of the longitudinal telescopic driving device is arranged on the support frame and in the water tank under the direction, the placing frame is arranged at the bottom of the longitudinal telescopic driving device and comprises a rectangular frame, a plurality of clamping plates are arranged at the upper horizontal intervals of the rectangular frame, the adjacent clamping plates are connected through springs in the plurality of clamping plates, and the end clamping plates are connected with a horizontal compression device.
The invention has the beneficial effects that: the core plate is subjected to high-temperature cooking treatment, flame retardant components of the flame retardant are completely fused and permeated into the wood fibers, the effects of high-temperature sterilization and comprehensive flame retardance are achieved, meanwhile, the high-molecular flame retardant fiber layer is adopted for interval flame retardance, the reinforced glass fiber layer is utilized for coating the whole half plate from the outermost surface, multiple times of flame retardance are formed, and the flame retardant treatment is simultaneously enhanced from the inside and the outside of the wood fibers. The method can overcome the defects that the existing flame-retardant plate is poor in flame-retardant effect, low in strength and capable of breeding bacteria in the internal solution, and improves the overall performance of the flame-retardant plate.
Drawings
FIG. 1 is a schematic view of a digester structure;
FIG. 2 is a top plan view of the shelving unit of FIG. 1;
FIG. 3 is a schematic view of a middle core plate splicing structure;
fig. 4 is a schematic cross-sectional view of an intermediate core plate.
Detailed Description
Please refer to fig. 1-4
Example 1
A method of producing a fire retardant panel comprising the steps of:
(1) selecting imported poplar as a raw material, and then performing cooking softening treatment on the raw material;
(2) rotary cutting: feeding the raw material obtained in the step (1) into a rotary cutter for rotary cutting, and obtaining core plates with different thicknesses according to processing requirements;
(3) preparing a flame-retardant solution; the solution comprises a flame retardant, water and melamine, wherein the weight ratio of the flame retardant to the water to the melamine is 0.5:2.5:1, and the flame retardant comprises the following raw materials in parts by weight: 6.5 parts of ammonium dihydrogen phosphate; 2.5 parts of diammonium hydrogen phosphate, 0.95 part of kaolin, 0.2 part of rare earth, 2.5 parts of cyclodextrin, 1.5 parts of chitosan and 5.5 parts of montmorillonite nano composite material, wherein the pH value of the solution is 5.
(4) High-temperature cooking: the prepared solution is stored in a cooking pool, a single core plate is vertically placed in the cooking pool in a balanced manner at an interval of 2mm, and the cooking pool comprises: the water tank comprises a water tank 1, a longitudinal telescopic driving device 2, a support frame 3 and a placing frame 4, wherein the support frame 3 is arranged right above the water tank 1, the bottom of the support frame 3 is fixed on the ground at the periphery of the water tank 1, the installation is convenient, a rectangular array of the longitudinal telescopic driving device 2 is arranged on the support frame 1 and in the water tank 1 pointing downwards, the placing frame 4 is arranged at the bottom of the longitudinal telescopic driving device 2, the longitudinal telescopic driving device 2 drives the placing frame 4 to move up and down, a core plate placed on the placing frame 4 is immersed in a solution in the water tank 1, the placing frame 4 comprises a rectangular frame 41, a plurality of clamping plates 5 are horizontally arranged on the rectangular frame 41 at intervals, adjacent clamping plates in the plurality of clamping plates are connected through springs 6, end clamping plates are connected with a horizontal compression device 7, the core plate to be cooked is placed between the, each adjacent clamping plate is clamped by a spring 6, the spacing distance of the single core plate is ensured, the vertical clamping balance placement of the core plate is realized, the clamping plates 5 are formed by processing grid plates, the comprehensive contact between the core plate and a solution is ensured, and the cooking quality is ensured; soaking the core plate in the solution for 1 hour, heating the solution to raise the temperature of the solution to 60 ℃, keeping the core plate in the solution at 60 ℃ for cooking for 35 hours, then gradually cooling, gradually cooling at the cooling frequency of 5 ℃ per hour until the temperature of the water is lower than 5 ℃, then soaking the plate blank for 5 hours until the flame retardant components completely permeate into the wood fibers of the core plate, and taking out the plate blank to achieve the effects of high-temperature sterilization and comprehensive flame retardance;
(5) storing the core plate taken out in a standing mode, and then air-drying the core plate in a natural air-cooling mode to keep the water content of the core plate at 10%;
(6) after the core board is dried, the surface quality of the core board is checked by workers according to an eye measurement method, the core board is divided into a panel and a middle core board 10 according to the surface evenness of the core board, and the panel is directly rolled into a bundle by using a roller mounting device for standby;
(7) after the surface of the middle core plate 10 is finished to improve the surface flatness, a ceramic fiber layer 11 is bonded on the outer surface of the middle core plate 10, then a carbon fiber layer 12 is sprayed on the outer surface of the ceramic fiber layer 11, and then a polymer glass fiber layer 13 is coated on the outer surface of the carbon fiber layer 12;
(8) gluing: the middle core plates 10 are stacked in the length direction, the middle core plates 10 are spliced, the splicing process is that the toothed six-spliced broken seams are spliced in an infinite extension mode, then glue is coated on the surfaces of the polymer glass fiber layers 13 of the spliced middle core plates 10, and the total weight of the glue on the front surface and the back surface of the middle core plates is ensured to be 1.1 kg;
(9) and (3) laminating: laying the middle core plate 10 according to the processing requirement, then laying the panels on the upper surface of the middle core plate 10, and pre-pressing by using a cold press to form a multi-layer flame-retardant plate;
(10) spraying a silver ion layer on the surface of the laminated multi-layer flame retardant plate;
(11) and paving the decorative layer on the front surface of the multi-layer flame-retardant plate, then placing the multi-layer flame-retardant plate on a hot press for hot pressing, continuously hot-pressing the multi-layer flame-retardant plate for 30 minutes by adopting a high temperature of 130 ℃, and hot-pressing and molding the multi-layer flame-retardant plate to obtain the flame-retardant plate.
Example 2
(1) Selecting imported eucalyptus as a raw material, and then performing cooking softening treatment on the raw material;
(2) rotary cutting: feeding the material obtained in the step (1) into a rotary cutter for rotary cutting, and obtaining core plates with different thicknesses according to processing requirements;
(3) preparing a flame-retardant solution; the solution comprises a flame retardant, water and melamine, wherein the weight ratio of the flame retardant to the water to the melamine is 0.5:2.5:1, and the flame retardant comprises the following raw materials in parts by weight: 12 parts of ammonium dihydrogen phosphate; 3.5 parts of diammonium hydrogen phosphate, 1.5 parts of kaolin, 1.2 parts of rare earth, 3.5 parts of cyclodextrin, 2.5 parts of chitosan and 8.5 parts of montmorillonite nano composite material, soaking the core plate obtained in the step (2) in a solution, and keeping the pH value of the solution at 5.5;
(4) high-temperature cooking: the prepared solution is stored in a cooking pool, a single core plate is vertically placed in the cooking pool in a balanced manner at an interval of 2mm, and the cooking pool comprises: the water tank comprises a water tank 1, a longitudinal telescopic driving device 2, a support frame 3 and a placing frame 4, wherein the support frame 3 is arranged right above the water tank 1, the bottom of the support frame 3 is fixed on the ground at the periphery of the water tank 1, the installation is convenient, a rectangular array of the longitudinal telescopic driving device 2 is arranged on the support frame 1 and in the water tank 1 pointing downwards, the placing frame 4 is arranged at the bottom of the longitudinal telescopic driving device 2, the longitudinal telescopic driving device 2 drives the placing frame 4 to move up and down, a core plate placed on the placing frame 4 is immersed in a solution in the water tank 1, the placing frame 4 comprises a rectangular frame 41, a plurality of clamping plates 5 are horizontally arranged on the rectangular frame 41 at intervals, adjacent clamping plates in the plurality of clamping plates are connected through springs 6, end clamping plates are connected with a horizontal compression device 7, the core plate to be cooked is placed between the, each adjacent clamping plate is clamped by a spring 6, the spacing distance of the single core plate is ensured, the vertical clamping balance placement of the core plate is realized, the clamping plates 5 are formed by processing grid plates, the comprehensive contact between the core plate and a solution is ensured, and the cooking quality is ensured; soaking the core plate in the solution for 1 hour, heating the solution to 70 ℃, keeping the core plate in the solution at 70 ℃ for cooking for 40 hours, then gradually cooling, gradually cooling at the cooling frequency of 5 ℃ per hour until the water temperature is lower than 5 ℃, then soaking the plate blank for 10 hours until the flame retardant components completely permeate into the wood fibers of the core plate, and taking out the plate blank to achieve the effects of high-temperature sterilization and comprehensive flame retardance;
(5) storing the core plate taken out in a standing mode, and then air-drying the core plate in a natural air-cooling mode to keep the water content of the core plate at 14%;
(6) after the core board is dried, the surface quality of the core board is checked by workers according to an eye measurement method, the core board is divided into a panel and a middle core board 10 according to the surface evenness of the core board, and the panel is directly rolled into a bundle by using a roller mounting device for standby;
(7) after the surface of the middle core plate 10 is finished to improve the surface flatness, a ceramic fiber layer 11 is bonded on the outer surface of the middle core plate 10, then a carbon fiber layer 12 is sprayed on the outer surface of the ceramic fiber layer 11, and then a polymer glass fiber layer 13 is coated on the outer surface of the carbon fiber layer 12;
(8) gluing: the middle core plates 10 are stacked in the length direction, the middle core plates 10 are spliced, the splicing process is that the toothed six-spliced broken seams are spliced in an infinite extension mode, then glue is coated on the surfaces of the polymer glass fiber layers 13 of the spliced middle core plates 10, and the total weight of the glue on the front surface and the back surface of the middle core plates is ensured to be 1.1 kg;
(9) and (3) laminating: laying the middle core plate 10 according to the processing requirement, then laying the panels on the upper surface of the middle core plate 10, and pre-pressing by using a cold press to form a multi-layer flame-retardant plate;
(10) spraying a silver ion layer on the surface of the laminated multi-layer flame retardant plate;
(11) and paving the decorative layer on the front surface of the multi-layer flame-retardant plate, then placing the multi-layer flame-retardant plate on a hot press for hot pressing, continuously hot-pressing the multi-layer flame-retardant plate for 30 minutes by adopting a high temperature of 130 ℃, and hot-pressing and molding the multi-layer flame-retardant plate to obtain the flame-retardant plate.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (3)
1. A method for producing a flame retardant panel, comprising the steps of:
(1) selecting raw materials: selecting imported poplar, radiata pine or eucalyptus, and then cooking and softening the raw materials;
(2) rotary cutting: feeding the raw material obtained in the step (1) into a rotary cutter for rotary cutting, and rotary-cutting core plates with different thicknesses according to production requirements;
(3) preparing a flame-retardant solution: the solution comprises a flame retardant, water and melamine, wherein the weight ratio of the flame retardant to the water to the melamine is 0.5:2.5:1, and the flame retardant comprises the following raw materials in parts by weight: 5-12 parts of ammonium dihydrogen phosphate; 1-3.5 parts of diammonium hydrogen phosphate, 0.5-1.5 parts of kaolin, 0.1-1.2 parts of rare earth, 1-3.5 parts of cyclodextrin, 0.5-2.5 parts of chitosan and 2.5-8.5 parts of montmorillonite nano composite material, and the pH value of the solution is kept to be 4.5-5.5;
(4) high-temperature cooking: storing the prepared solution in a cooking pool, then placing a single core plate in the cooking pool in a balanced and vertical manner at intervals of 2mm, soaking the core plate in the solution for 1 hour, heating the solution to raise the temperature of the solution to 60-70 ℃, keeping the core plate cooked in the solution at 60-70 ℃ for 30-40 hours, then gradually cooling, gradually cooling at the cooling frequency of 5 ℃ per hour until the temperature of the water is lower than 5 ℃, then soaking the plate blank for 5-10 hours until the flame retardant components completely permeate into the wood fibers of the core plate, and taking out the plate blank;
(5) storing the core plate taken out in a standing mode, and then air-drying the core plate in a natural air-cooling mode to keep the water content of the core plate at 10% -14%;
(6) after the core board is dried, the surface quality of the core board is checked by workers according to an eye measurement method, the core board is divided into a panel and a middle core board according to the surface evenness of the core board, and the panel is directly rolled into a bundle by using a roller device for standby;
(7) after the surface of the middle core plate is finished to improve the surface flatness, a ceramic fiber layer is bonded on the outer surface of the middle core plate, then a carbon fiber layer is sprayed on the outer surface of the ceramic fiber layer, and then a polymer glass fiber layer is coated on the outer surface of the carbon fiber layer;
(8) gluing: the middle core plates are stacked in the length direction and spliced, the splicing process is that the toothed six-spliced broken seam is spliced in an unlimited extension mode, then glue is coated on the surface of the polymer glass fiber layer of the spliced middle core plates, and the total weight of the glue on the front surface and the back surface of the middle core plates is ensured to be 1.1 kg;
(9) and (3) laminating: laying layers on the middle core board according to the processing requirement, then laying the panels on the upper surface of the middle core board, and pre-pressing by using a cold press to form a multi-layer flame-retardant board;
(10) spraying a silver ion layer on the surface of the laminated multi-layer flame retardant plate;
(11) and paving the decorative layer on the front surface of the multi-layer flame-retardant plate, then placing the multi-layer flame-retardant plate on a hot press for hot pressing, continuously hot-pressing the multi-layer flame-retardant plate for 30 minutes by adopting a high temperature of 130 ℃, and hot-pressing and molding the multi-layer flame-retardant plate to obtain the flame-retardant plate.
2. The production method of the flame retardant sheet according to claim 1, wherein the flame retardant comprises the following raw materials in parts by weight: 6.5 parts of ammonium dihydrogen phosphate; 2.5 parts of diammonium hydrogen phosphate, 0.95 part of kaolin, 0.2 part of rare earth, 2.5 parts of cyclodextrin, 1.5 parts of chitosan and 5.5 parts of montmorillonite nano composite material, wherein the pH value of the solution is 5.
3. The method for producing a fire retardant panel according to claim 1 wherein the cooking bath in step (4) comprises: the water tank comprises a water tank, a longitudinal telescopic driving device, a support frame and a placing frame, wherein the support frame is arranged right above the water tank, a rectangular array of the longitudinal telescopic driving device is arranged on the support frame and in the water tank under the direction, the placing frame is arranged at the bottom of the longitudinal telescopic driving device and comprises a rectangular frame, a plurality of clamping plates are arranged at the upper horizontal intervals of the rectangular frame, the adjacent clamping plates are connected through springs in the plurality of clamping plates, and the end clamping plates are connected with a horizontal compression device.
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| CN109531764A (en) * | 2018-12-14 | 2019-03-29 | 沭阳县金森源木业有限公司 | A kind of production method of flame-retardant board |
| CN111570191B (en) * | 2020-05-20 | 2021-11-05 | 三门峡职业技术学院 | Flame-retardant wear-resistant building material |
| CN114706362B (en) * | 2022-06-08 | 2022-08-16 | 深圳市骏丰木链网科技股份有限公司 | Flame-retardant plate automatic production management system based on artificial intelligence |
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