CN113844072A - Production process of light A2-grade flame-retardant heat-insulation composite board - Google Patents
Production process of light A2-grade flame-retardant heat-insulation composite board Download PDFInfo
- Publication number
- CN113844072A CN113844072A CN202111114249.1A CN202111114249A CN113844072A CN 113844072 A CN113844072 A CN 113844072A CN 202111114249 A CN202111114249 A CN 202111114249A CN 113844072 A CN113844072 A CN 113844072A
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- aerogel
- retardant
- core material
- composite board
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- 239000002131 composite material Substances 0.000 title claims abstract description 45
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000003063 flame retardant Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000009413 insulation Methods 0.000 title claims abstract description 12
- 239000004964 aerogel Substances 0.000 claims abstract description 47
- 239000011162 core material Substances 0.000 claims abstract description 40
- 239000004033 plastic Substances 0.000 claims abstract description 24
- 229920003023 plastic Polymers 0.000 claims abstract description 24
- 239000004831 Hot glue Substances 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 238000009966 trimming Methods 0.000 claims abstract description 7
- 238000007493 shaping process Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 12
- 238000009500 colour coating Methods 0.000 claims description 10
- 238000013329 compounding Methods 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 claims 2
- 238000010276 construction Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
Abstract
The invention discloses a production process of a light A2-grade flame-retardant heat-insulation composite board, which comprises the following steps: step 1, preliminarily hot-sticking hot melt adhesive on two surfaces of a core material; step 2, bonding and shaping the PE aerogel plastic and the middle light aerogel flame-retardant core material; step 3, bonding and shaping the second layer of PE aerogel plastic and the middle light aerogel flame-retardant core material; step 4, leveling the composite core material; step 5, heating the cooled board to meet the requirement of the board surface of the core material through infrared rays; step 6, the metal color coated coil is attached to the core material through hot melt adhesive; and 7, trimming and stacking the composite board. The invention can realize the high-efficiency production of the light A2-grade flame-retardant heat-insulation composite board.
Description
Technical Field
The invention relates to a production process of a light A2-grade flame-retardant heat-insulation composite board used in the field of composite boards.
Background
At present, based on the fireproof requirements for composite boards, inorganic matters are mostly adopted as decorative and supporting materials, such as stone, glass, aluminum veneers and A2 flame-retardant composite boards, the inorganic matters are heavy in weight, and can be limited by the bearing capacity of buildings when being used for building design and composite boards, and in the construction process, the installation cost and the transportation cost of the materials are high.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a production process of a light A2-grade flame-retardant heat-insulation composite board, which can realize the production of the light A2-grade flame-retardant heat-insulation composite board.
One technical scheme for achieving the above purpose is as follows: a production process of a light A2-grade flame-retardant heat-insulation composite board comprises the following steps:
step 1, feeding an aerogel flame-retardant core material of a composite board, arranging a group of unreeling devices above an outlet of the aerogel flame-retardant core material for unreeling hot melt adhesive, and primarily thermally sticking the hot melt adhesive on two surfaces of the core material by using pressure rollers before a section 1 baking furnace path;
step 2, before the section 1 of the baking furnace path, arranging a group of mixed PE aerogel extrusion roller presses, pressurizing the pressed PE aerogel plastic through the hot melt adhesive attached in the previous step, and then firmly attaching the pressed PE aerogel plastic to the aerogel flame-retardant core material, arranging a plurality of pressure rollers in the section 1 of the baking furnace path, and bonding and shaping the PE aerogel plastic and the middle aerogel flame-retardant core material through the pressure rollers;
step 3, in front of the baking furnace passage at the section 2, a mixed PE aerogel extrusion roller press is arranged at a feed opening of the baking furnace passage at the section 1, a group of unwinding devices are arranged at the feed opening of the baking furnace passage at the section 1 for unwinding hot melt adhesive, the materials and the PE aerogel plastic are firmly attached after being pressurized before the baking furnace passage at the section 2, and the materials and the PE aerogel plastic are adhered and shaped through a plurality of pressure rollers in the baking furnace passage at the section 2;
step 4, the composite material after compounding is leveled without obvious warpage through multi-section repeated leveling and gradual cooling of a subsequent cooling section, a heating section, a cooling section, a leveling heating section and a cooling section;
step 5, the material passes through a multi-section air cooling area, then passes through a section of infrared heating furnace before subsequent compounding, maintains the temperature of the plate surface between 90 ℃ and 110 ℃, and enters a compounding roller immediately after exiting from the heating furnace section;
step 6, after the heating furnace section, adhering the metal color coating coil and the material together through hot melt adhesive by an upper metal color coating coil unreeling machine, a lower metal color coating coil unreeling machine and a hot melt adhesive unreeling machine, passing through 5 subsequent groups of leveling rollers, and adhering a protective film with a logo to the whole plate after passing through 2 groups of air cooling areas;
and 7, trimming the width to a required size through a folding trimming device after film pasting, simultaneously arranging an edge strip recycling machine, cutting the trimmed composite board to a required length at an automatic cutting machine, then reaching an automatic stacker crane area through an automatic conveying belt, and automatically stacking the composite board by the automatic stacker crane.
Further, the pressure of the pressure roller in the step 1 is 3-5 kg.
Further, the mixed PE aerogel extrusion roller press in the step 2 and the step 3 is a five-section hot-melting extruding machine, a mixed stirring box area is arranged in front of an outlet grinding opening of the extruding machine, multilayer blade spiral stirring is arranged inside the stirring box area, the stirring rotating speed is adjustable and stepless speed change, aerogel is conveyed from one end, the hot-melted plastic is stirred at the other end and then pressed, extruded through a die lip, and then pressed into a preset thickness through rolling.
Further, the pressure rollers in the step 2 and the step 3 are controlled to be closed and opened outside the furnace channel through air pressure, and closing adjustment is controlled through a clamping gap of a bidirectional bolt between the upper roller and the lower roller.
Further, the temperature of the baked board surface in the section 1 furnace path is stabilized at 100 +/-5 ℃, and the temperature of the baked board surface in the section 2 furnace path is stabilized at 110 +/-5 ℃.
Furthermore, in order to prevent abnormal conditions such as core plate deviation in the composite core material process, a laser deviation correcting device is additionally arranged on two sides of the 1 st section baking furnace port and the 2 nd section baking furnace port, and the laser deviation correcting device is linked with an unreeling machine and a material spitting leveling roller to perform timely micro-motion adjustment and alignment.
Furthermore, in order to prevent the deviation of the core material from exceeding the control range after deviation correction, automatically adjustable clamping rods are added in the 1 st section of the furnace flue and the 2 nd section of the furnace flue, the width of the clamping rods can be adjusted through telescopic rods at the bottom, and after the width is adjusted to a preset value, the rotatable rollers at two sides are lifted to properly pressurize the core material of the production line, so that the deviation is prevented from exceeding the range.
Further, after step 6 is completed, the board is subjected to inspection.
According to the production process of the light A2-grade flame-retardant heat-insulation composite board, due to the addition of the aerogel and the fiber carbon, the weight of the product is reduced by 30% -50% while the strength and the processability of the product are ensured, the construction cost is reduced, the construction danger is reduced, and the later-stage danger is reduced; meanwhile, the flame-retardant requirement can be met, and due to the characteristics of the aerogel, a heat-insulating layer can be formed, so that the energy consumption is reduced.
Through the multilayer structure, compared with the production process of the composite board added with aerogel in the prior art, the physical property of the composite board is improved, and the individual value is improved compared with the original GB/T17748-. The bending strength is more than or equal to 100MPa, the bending strength is reduced to about 30MPa after the aerogel is added, and the strength is generally more than 130MPa after the aerogel passes through a multilayer structure; the shear strength is not less than 22MPa, the strength is reduced to about 5MPa after the aerogel is added, and the strength is generally more than 25MPa after the aerogel passes through a multilayer structure.
Detailed Description
In order to better understand the technical solution of the present invention, the following detailed description is made by specific examples:
the production process of the light A2-grade flame-retardant heat-insulation composite board specifically comprises the following steps.
Step 1, producing the special light A2-grade flame-retardant heat-insulation composite board core material through a standard production process, then feeding, arranging a group of unreeling devices above an outlet (or dividing the core material into two groups, wherein the core material is unreeled), and unreeling hot melt adhesive, and preliminarily thermally sticking the hot melt adhesive on two surfaces of the core material by using pressure rollers before a section 1 baking furnace path, wherein the pressure of the pressure rollers is 3-5 kg.
And 2, arranging a group of mixed PE aerogel extrusion roller presses in front of the section 1 baking furnace path. The equipment is a five-section hot-melting plastic extruding machine, a mixing stirring box area is added before the outlet of the plastic extruding machine is ground, the stirring box area is internally stirred in a spiral mode through a plurality of layers of blades, the stirring speed is adjustable and stepless speed is changed, aerogel is conveyed at one end, the other end of the stirring box area is used for stirring hot-melted plastic and then is pressed and extruded through a die lip, and the plastic is pressed into a preset thickness through rolling. The PE aerogel plastics that will suppress are through the hot melt adhesive pressurization back of laminating in last step firm in core surface laminating to set up many pressure rollers in 1 st section furnace flue, the pressure roller all has atmospheric pressure control to closing and opening outside the furnace flue, closes to adjust and blocks the clearance through the two-way bolt between the upper and lower roll and control, wholly for the entrance height slightly, the more to the exit clearance big more. Bonding the PE aerogel plastic with the middle light aerogel flame-retardant core material; the temperature of the plate surface after baking in the section 1 furnace path is stabilized at 100 +/-5 ℃.
Step 3, as in step 2, arranging a group of mixed PE aerogel extrusion roller presses at a feed opening of the baking furnace way at the 1 st section before the baking furnace way at the 2 nd section; arranging a group of unwinding devices at a feed opening of the section 1 baking furnace path, unwinding hot melt adhesive, pressurizing the material and PE aerogel plastic before the section 2 baking furnace path, and then firmly attaching the material and the PE aerogel plastic, and bonding and shaping the material and the PE aerogel plastic through a plurality of compression rollers in the section 2 baking furnace path (the material and PE aerogel plastic are designed in the section 1); the temperature of the plate surface after baking in the 2 nd section of the furnace path is stabilized at 110 +/-5 ℃.
In order to prevent abnormal conditions such as core plate deviation in the composite core material process, a laser deviation correcting device is additionally arranged on two sides of a baking furnace port in the 1 st section and the 2 nd section, a unreeling machine and a material spitting leveling roller are linked, and timely fine adjustment is carried out on the core material, the deviation correcting principle is that the core material is completely synchronous in the deviation correcting range of the preset two sides through transmission and reception through a laser transmitting and receiving device, if laser is not received, after the deviation of which layer is determined to appear, the controller automatically controls the unreeling source to move and correct the deviation, and simultaneously feeds back the deviation correcting control to the controller, and after the preset number of meters, the deviation correcting control is started again.
In order to prevent the deviation of the core material from exceeding the control range after deviation correction, automatically adjustable clamping rods are added in the No. 1 section and the No. 2 section of the furnace channel, the width can be adjusted by telescopic rods at the bottom, and after the width is adjusted to a preset value, the rotatable rollers at two sides are lifted to properly pressurize the core material of the production line, so that the deviation is prevented from exceeding the range.
And 4, carrying out multi-section repeated leveling and step-by-step cooling through a subsequent cooling section, a heating section, a cooling section, a leveling heating section and a cooling section to enable the composite core material after being compounded to be flat without obvious warpage.
And 5, passing the composite core material through a multi-section air cooling area, then passing the composite core material through a section of infrared heating furnace before subsequent compounding, maintaining the temperature of the plate surface between 90 and 110 ℃, and immediately entering a composite roller after the composite core material is discharged from the heating furnace section.
And 6, after the heating furnace section, adhering the metal color coating coil and the material together through hot melt adhesive by an upper metal color coating coil unreeling machine, a lower metal color coating coil unreeling machine and a hot melt adhesive unreeling machine, passing through 5 subsequent groups of leveling rollers, arranging the metal color coating coil and the material into a plate, and adhering a protective film with a logo after passing through 2 groups of air cooling zones. The panels may be inspected at this stage by using a surface defect inspection machine or manually.
And 7, trimming the width to a required size through a folding trimming device after film pasting, simultaneously additionally arranging edge strip recycling machines at two sides, cutting the trimmed composite board to a required length at an automatic cutting machine, then reaching an automatic stacker crane area through an automatic conveying belt, and automatically stacking the composite board by an automatic stacker crane.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (8)
1. A production process of a light A2-grade flame-retardant heat-insulation composite board is characterized by comprising the following steps:
step 1, feeding an aerogel flame-retardant core material of a composite board, arranging a group of unreeling devices above an outlet of the aerogel flame-retardant core material for unreeling hot melt adhesive, and primarily thermally sticking the hot melt adhesive on two surfaces of the core material by using pressure rollers before a section 1 baking furnace path;
step 2, before the section 1 of the baking furnace path, arranging a group of mixed PE aerogel extrusion roller presses, pressurizing the pressed PE aerogel plastic through the hot melt adhesive attached in the previous step, and then firmly attaching the pressed PE aerogel plastic to the aerogel flame-retardant core material, arranging a plurality of pressure rollers in the section 1 of the baking furnace path, and bonding and shaping the PE aerogel plastic and the middle aerogel flame-retardant core material through the pressure rollers;
step 3, in front of the baking furnace passage at the section 2, a mixed PE aerogel extrusion roller press is arranged at a feed opening of the baking furnace passage at the section 1, a group of unwinding devices are arranged at the feed opening of the baking furnace passage at the section 1 for unwinding hot melt adhesive, the materials and the PE aerogel plastic are firmly attached after being pressurized before the baking furnace passage at the section 2, and the materials and the PE aerogel plastic are adhered and shaped through a plurality of pressure rollers in the baking furnace passage at the section 2;
step 4, the composite material after compounding is leveled without obvious warpage through multi-section repeated leveling and gradual cooling of a subsequent cooling section, a heating section, a cooling section, a leveling heating section and a cooling section;
step 5, the material passes through a multi-section air cooling area, then passes through a section of infrared heating furnace before subsequent compounding, maintains the temperature of the plate surface between 90 ℃ and 110 ℃, and enters a compounding roller immediately after exiting from the heating furnace section;
step 6, after the heating furnace section, adhering the metal color coating coil and the material together through hot melt adhesive by an upper metal color coating coil unreeling machine, a lower metal color coating coil unreeling machine and a hot melt adhesive unreeling machine, passing through 5 subsequent groups of leveling rollers, and adhering a protective film with a logo to the whole plate after passing through 2 groups of air cooling areas;
and 7, trimming the width to a required size through a folding trimming device after film pasting, simultaneously arranging an edge strip recycling machine, cutting the trimmed composite board to a required length at an automatic cutting machine, then reaching an automatic stacker crane area through an automatic conveying belt, and automatically stacking the composite board by the automatic stacker crane.
2. The process for producing a lightweight A2-grade flame retardant and heat insulating composite board according to claim 1, wherein the pressure of the pressure roller in step 1 is 3-5 kg.
3. The production process of the light A2-grade flame-retardant and heat-insulating composite board as claimed in claim 1, wherein the PE aerogel mixing roll press in step 2 and step 3 is a five-stage hot-melt extruder, a mixing and stirring tank zone is arranged in front of the outlet of the extruder, the inside of the stirring tank zone is spirally stirred by a plurality of layers of blades, the stirring speed is adjustable and stepless, the aerogel is conveyed from one end, the hot-melt plastic is stirred and then pressed by the other end, and is extruded through a die lip, and then is pressed into a preset thickness by rolling.
4. The process for producing a lightweight A2-grade flame retardant and heat insulating composite board as claimed in claim 1, wherein the pressure rollers in step 2 and step 3 are controlled to be closed and opened by air pressure outside the furnace channel, and the closing adjustment is controlled by a two-way bolt clamping gap between the upper and lower rollers.
5. The production process of the light A2-grade flame-retardant and heat-insulating composite board according to claim 1, wherein the board surface temperature after baking in the 1 st stage of the furnace is stabilized at 100 ℃ ± 5 ℃, and the board surface temperature after baking in the 2 nd stage of the furnace is stabilized at 110 ℃ ± 5 ℃.
6. The production process of the light A2-grade flame-retardant and heat-insulating composite board as claimed in claim 1, wherein in order to prevent abnormal conditions such as core deviation in the composite core material process, laser deviation-correcting devices, linkage unreeling machines and material-spitting leveling rollers are additionally arranged on two sides of the baking furnace port of the 1 st section and the 2 nd section, and timely fine adjustment and alignment are carried out.
7. The production process of the light A2-grade flame-retardant and heat-insulating composite board as claimed in claim 6, wherein in order to prevent deviation of the core material from exceeding the control range after deviation correction, automatically adjustable clamping rollers are added in the 1 st and 2 nd sections of the furnace path, the width of the clamping rollers can be adjusted by telescopic rods at the bottom, and after the width is adjusted to a preset value, the rotatable rollers at two sides are lifted to properly pressurize the core material of the production line, so as to prevent deviation from exceeding the range.
8. The production process of the light A2-grade flame-retardant and heat-insulating composite board as claimed in claim 1, wherein after step 6, the board is inspected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111114249.1A CN113844072A (en) | 2021-09-23 | 2021-09-23 | Production process of light A2-grade flame-retardant heat-insulation composite board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111114249.1A CN113844072A (en) | 2021-09-23 | 2021-09-23 | Production process of light A2-grade flame-retardant heat-insulation composite board |
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| CN202111114249.1A Pending CN113844072A (en) | 2021-09-23 | 2021-09-23 | Production process of light A2-grade flame-retardant heat-insulation composite board |
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