CN113510805A - Intelligent fireproof plywood and preparation method thereof - Google Patents
Intelligent fireproof plywood and preparation method thereof Download PDFInfo
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- CN113510805A CN113510805A CN202110416057.XA CN202110416057A CN113510805A CN 113510805 A CN113510805 A CN 113510805A CN 202110416057 A CN202110416057 A CN 202110416057A CN 113510805 A CN113510805 A CN 113510805A
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- veneer
- plywood
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- fireproof
- temperature sensing
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- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000003063 flame retardant Substances 0.000 claims description 28
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- 238000004026 adhesive bonding Methods 0.000 claims description 12
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Images
Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/06—Manufacture of central layers; Form of central layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B21/042—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of wood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/14—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood board or veneer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
- B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Forests & Forestry (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses an intelligent fireproof plywood and a preparation method thereof, wherein the intelligent fireproof plywood comprises a first veneer, a second veneer, a third veneer and a fourth veneer which are sequentially stacked, a temperature sensing assembly is arranged between the second veneer and the third veneer, the temperature sensing assembly comprises a conductive strip, thermistors and connecting strips, the thermistors are distributed on two sides of the conductive strip in a staggered mode, the connecting strips are connected between the thermistors and the conductive strip, a fireproof layer is further arranged between the second veneer and the third veneer, and a through hole capable of completely accommodating the temperature sensing assembly is formed in the fireproof layer. According to the invention, the temperature sensing component is arranged in the plywood, so that the temperature in the plywood can be sensed and monitored in real time, an alarm can be given out in real time through the intelligent alarm box, meanwhile, the remote monitoring function can be realized, once a fire disaster and other conditions happen, the fire extinguishing and preventing effect can be exerted by the protective layer in the plywood, and the effective suppression of the fire disaster can be realized conveniently.
Description
Technical Field
The invention belongs to the technical field of fireproof plywood, and particularly relates to intelligent fireproof plywood and a preparation method thereof.
Background
Plywood is a three-layer or multi-layer plate material made up by using wood segments and making them be rotary-cut into single board or sliced into thin wood and using adhesive to make them be glued together, and usually using odd number of layers of single board and making the fibre directions of adjacent layers of single board be mutually perpendicular.
The plywood is one of common furniture materials, is one of three large plates of an artificial plate, and can also be used as a material for airplanes, ships, trains, automobiles, buildings, packing boxes and the like. A group of veneers are typically assembled and glued perpendicular to each other in the direction of the adjacent layers of wood grain, and the skins and inner sheets are typically symmetrically disposed on either side of the center layer or core. The glued veneer is pressed into the wood grain board blank by the criss-cross matching of the glued veneer according to the wood grain direction under the condition of heating or not heating. The number of layers is generally odd, and a few are even. The difference of physical and mechanical properties in the longitudinal and transverse directions is small. The types of plywood commonly used are plywood, plywood and the like. The plywood can improve the utilization rate of the wood and is a main way for saving the wood.
Plywood among the prior art generally only is made by timber, does not possess the effect of fire prevention, still belongs to the combustible substance, in case the environment takes place the conflagration and still has combustion-supporting effect, moreover, and the temperature condition is difficult for monitoring, even if near high temperature appears also be difficult for in time discovering, be difficult for eliminating hidden danger in the future.
Therefore, in order to solve the above technical problems, it is necessary to provide an intelligent fireproof plywood and a preparation method thereof.
Disclosure of Invention
The invention aims to provide an intelligent fireproof plywood and a preparation method thereof, and aims to solve the problems.
In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:
an intelligent fireproof plywood comprises a first veneer, a second veneer, a third veneer and a fourth veneer which are sequentially stacked, wherein a temperature sensing assembly is arranged between the second veneer and the third veneer, the temperature sensing assembly comprises a conductive strip, thermistors and connecting strips, the thermistors are distributed on two sides of the conductive strip in a staggered mode, and the connecting strips are connected between the thermistors and the conductive strip;
the temperature sensing module is characterized in that a fireproof layer is further arranged between the second single plate and the third single plate, a through hole capable of completely accommodating the temperature sensing assembly is formed in the fireproof layer, and the first single plate, the second single plate, the fireproof layer, the third single plate and the fourth single plate are sequentially glued and fixed.
As a further improvement of the invention, the thicknesses of the first single plate, the second single plate, the third single plate and the fourth single plate are all 1-3 mm.
As a further improvement of the invention, the thickness of the fire-proof layer is 1.5-3.1 mm.
As a further improvement of the invention, the fire-resistant layer comprises a plurality of fire-retardant balls, the fire-retardant balls comprise a shell and a fire-retardant filler, and the fire-retardant filler is arranged in the shell.
As a further improvement of the invention, the flame-retardant ball is irregular, and the maximum outer diameter of the flame-retardant ball is 0.2-0.4 mm.
As a further improvement of the invention, one side of the plywood is provided with an intelligent alarm box, the intelligent alarm box is provided with a connecting end surface matched with the thickness of the plywood, and the connecting end surface is provided with a plurality of elastic conductive contacts matched with the conductive strips.
As a further improvement of the intelligent alarm box, a data processing module, a wireless communication module and an active alarm module are arranged in the intelligent alarm box.
As a further improvement of the invention, a veneer is laid on the surface of the fourth veneer.
As a further improvement of the invention, the veneer is a flame-retardant veneer.
An intelligent fireproof plywood is prepared by the following steps:
s1, gluing and fixing the flame-retardant balls to prepare a fireproof layer;
s2, cutting the fireproof layer in the S1 to reserve a through hole for placing the temperature sensing assembly;
s3, gluing the first veneer, the second veneer and the cut fireproof layer in the S2 to form a first pre-assembly, and gluing the third veneer, the fourth veneer and the veneer to form a second pre-assembly;
s4, installing a temperature sensing assembly in a through hole reserved in the fireproof layer, and then gluing and fixing the first pre-assembly and the second pre-assembly in the S3 to form a finished plywood;
s5, curing and finishing the finished plywood in the S4, and matching with an intelligent alarm box to carry out debugging and inspection, so that the production and preparation can be finished.
Compared with the prior art, the invention has the following advantages:
according to the invention, the temperature sensing component is arranged in the plywood, so that the temperature in the plywood can be sensed and monitored in real time, an alarm can be given out in real time through the intelligent alarm box, meanwhile, the remote monitoring function can be realized, once a fire disaster and other conditions happen, the fire extinguishing and preventing effect can be exerted by the protective layer in the plywood, and the effective suppression of the fire disaster can be realized conveniently.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an intelligent fireproof plywood according to an embodiment of the present invention;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
FIG. 3 is a partial exploded view of an intelligent fire-resistant plywood according to an embodiment of the present invention;
FIG. 4 is an exploded view of an intelligent fire-resistant plywood according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a fire retardant ball according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of an intelligent fire protection plywood mounting intelligent alarm box according to an embodiment of the invention;
FIG. 7 is a schematic structural diagram of an intelligent alarm box formed by splitting an intelligent fireproof plywood according to an embodiment of the invention;
fig. 8 is a schematic view of the structure at B in fig. 7.
In the figure: 1. the novel fireproof door comprises a first single plate, 2, a second single plate, 3, a third single plate, 4, a fourth single plate, 5 conductive strips, 6 thermistors, 7 connecting strips, 8 fireproof layers, 81 through holes, 9 intelligent alarm boxes, 901 connecting end faces, 10 flame-retardant balls, 101 shells, 102 flame-retardant fillers, 11 elastic conductive contacts and 12 decorative plates.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. The embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are included in the scope of the present invention.
An intelligent fireproof plywood disclosed by an embodiment of the invention is shown in fig. 1-2 and comprises a first veneer 1, a second veneer 2, a fireproof layer 8, a third veneer 3 and a fourth veneer 4 which are sequentially stacked, wherein a veneer 12 is laid on the surface of the fourth veneer 4.
The thicknesses of the first single plate 1, the second single plate 2, the third single plate 3 and the fourth single plate 4 are all 1-3 mm, and the appropriate thicknesses can be selected according to different purposes and specific materials.
The thickness of flame retardant coating 8 is 1.5 ~ 3.1 millimeters, and is same, can select suitable thickness according to the scene of using, and under the same condition of other conditions, the thickness of flame retardant coating 8 is thicker more, and the fire prevention effect is better, but the thickness of flame retardant coating 8 is too thick, can influence the structural strength of plywood, consequently, the thickness of flame retardant coating 8 is no longer than the third of plywood gross thickness.
Specifically, the veneer 12 mainly has a decorative effect, and the veneer 12 is a flame retardant veneer, so that the decorative effect is achieved and a certain flame retardant effect is achieved.
Referring to fig. 1 to 4, a temperature sensing assembly is disposed between the second single board 2 and the third single board 3, the temperature sensing assembly includes a conductive strip 5, thermistors 6 and connecting strips 7, the thermistors 6 are distributed on two sides of the conductive strip 5 in a staggered manner, and the connecting strips 7 are connected between the thermistors 6 and the conductive strip 5.
Specifically, the conductive strip 5 and the connecting strip 7 may be an integrated structure, and specifically, the conductive strip 5 and the connecting strip 7 may be made of an aluminum material or a copper material, so that the corrosion resistance and the conductivity are good.
The flame retardant coating 8 sets up between second veneer 2 and third veneer 3, sets up the through-hole 81 that can hold the temperature perception subassembly completely on the flame retardant coating 8, can hold busbar 5, thermistor 6 and connecting strip 7 completely in the through-hole 81 promptly.
Preferably, the thickness of the conductive strips 5, the thermistor 6 and the connecting strip 7 is slightly less than that of the fireproof layer 8, and when the conductive strips 5, the thermistor 6 and the connecting strip 7 are installed in the through holes 81, the holes in the interior of the plywood are not easy to cause, and the strength of the structure is not affected.
Wherein, the matching degree of busbar 5, thermistor 6 and connecting strip 7 and through-hole 81 is higher, need not to use other fixed modes such as glue, and after second veneer 2, flame retardant coating 8 and 3 veneer of third veneer are fixed, can realize better fixed to busbar 5, thermistor 6 and connecting strip 7, be convenient for to busbar 5, thermistor 6 and connecting strip 7's recovery and reuse, do benefit to the environmental protection.
Referring to fig. 5, the fire-proof layer 8 includes a plurality of fire-proof balls 10, the fire-proof balls 10 include a casing 101 and a fire-proof filler 102, the fire-proof filler 102 is disposed in the casing 101, the casing 101 can be made of a glass fiber textile material, i.e., a protective film, the fire-proof filler 102 can be a nitrogen-containing intumescent fire-proof filler, and can automatically expand when meeting high temperature, and expand and foam when being fired, so as to form a foam layer isolating oxygen and heat, and meanwhile, the nitrogen-containing elements can decompose NO, NH3 and other groups, so that the nitrogen-containing intumescent fire-proof filler can combine with organic radicals, and the effect of interrupting chain reaction is good.
In order to ensure that the plurality of flame-retardant balls 10 can be better glued into the plate-shaped fireproof layer 8, the flame-retardant balls 10 are irregular, and the maximum outer diameter of each flame-retardant ball 10 is 0.2-0.4 mm.
Referring to fig. 6 to 8, an intelligent alarm box 9 is disposed on one side of the plywood, a connection end surface 901 matched with the thickness of the plywood is disposed on the intelligent alarm box 9, a plurality of elastic conductive contacts 11 matched with the conductive strips 5 are mounted on the connection end surface 901, and the elastic conductive contacts 11 have certain elasticity and can be in good contact with the conductive strips 5, so as to ensure the effectiveness of the conductivity.
Specifically, a data processing module, a wireless communication module and an active alarm module are arranged in the intelligent alarm box 9, a certain temperature threshold value which can be 150 ℃ can be set by a person skilled in the art, when the temperature sensed by the thermistor 6 is higher than 150 ℃, an alarm can be given through the intelligent alarm box 9, and the alarm mode can be a buzzer type;
the data processing module can handle the temperature data of gathering to accessible wireless communication module carries out remote communication with monitor terminal, through remote terminal such as PC or cell-phone, can judge the temperature condition in the plywood, when meetting the high temperature, is convenient for in time take measures.
An intelligent fireproof plywood is prepared by the following steps:
s1, gluing and fixing the flame-retardant balls 10 to prepare a fireproof layer 8;
s2, cutting the fireproof layer 8 in the step S1 to reserve a through hole 81 for placing the temperature sensing assembly;
s3, gluing the cut fireproof layers 8 in the first single plate 1, the second single plate 2 and the S2 to form a first pre-assembly, and gluing the third single plate 3, the fourth single plate 4 and the veneer 12 to form a second pre-assembly;
s4, installing a temperature sensing assembly in a through hole 81 reserved in the fireproof layer 8, and then gluing and fixing the first pre-assembly and the second pre-assembly in the S3 to form a finished plywood;
s5, curing and finishing the finished plywood in the S4, and matching with the intelligent alarm box 9 to carry out debugging and inspection, so that the production and preparation can be finished.
According to the technical scheme, the invention has the following beneficial effects:
according to the invention, the temperature sensing component is arranged in the plywood, so that the temperature in the plywood can be sensed and monitored in real time, an alarm can be given out in real time through the intelligent alarm box, meanwhile, the remote monitoring function can be realized, once a fire disaster and other conditions happen, the fire extinguishing and preventing effect can be exerted by the protective layer in the plywood, and the effective suppression of the fire disaster can be realized conveniently.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. An intelligent fireproof plywood comprises a first veneer, a second veneer, a third veneer and a fourth veneer which are sequentially stacked, and is characterized in that a temperature sensing assembly is arranged between the second veneer and the third veneer, the temperature sensing assembly comprises conductive strips, thermistors and connecting strips, the thermistors are distributed on two sides of the conductive strips in a staggered mode, and the connecting strips are connected between the thermistors and the conductive strips;
the temperature sensing module is characterized in that a fireproof layer is further arranged between the second single plate and the third single plate, a through hole capable of completely accommodating the temperature sensing assembly is formed in the fireproof layer, and the first single plate, the second single plate, the fireproof layer, the third single plate and the fourth single plate are sequentially glued and fixed.
2. The intelligent fireproof plywood of claim 1, wherein the first veneer, the second veneer, the third veneer and the fourth veneer are all 1-3 mm thick.
3. The intelligent fireproof plywood of claim 1, wherein the thickness of the fireproof layer is 1.5-3.1 mm.
4. The intelligent fire-resistant plywood of claim 1, wherein the fire-resistant layer comprises a plurality of fire-resistant balls, the fire-resistant balls comprise a shell and a fire-resistant filler, and the fire-resistant filler is arranged in the shell.
5. The intelligent fireproof plywood of claim 4, wherein the flame-retardant balls are irregular in shape, and the maximum outer diameter of the flame-retardant balls is 0.2-0.4 mm.
6. The intelligent fireproof plywood of claim 1, wherein an intelligent alarm box is arranged on one side of the plywood, a connecting end face matched with the thickness of the plywood is arranged on the intelligent alarm box, and a plurality of elastic conductive contacts matched with the conductive strips are arranged on the connecting end face.
7. The intelligent fireproof plywood of claim 6, wherein a data processing module, a wireless communication module and an active alarm module are arranged in the intelligent alarm box.
8. The intelligent fireproof plywood of claim 1, wherein a veneer is laid on the surface of the fourth veneer.
9. The intelligent fireproof plywood of claim 8, wherein the veneer is a flame retardant veneer.
10. The intelligent fireproof plywood of claim 1, wherein the preparation method comprises the following steps:
s1, gluing and fixing the flame-retardant balls to prepare a fireproof layer;
s2, cutting the fireproof layer in the S1 to reserve a through hole for placing the temperature sensing assembly;
s3, gluing the first veneer, the second veneer and the cut fireproof layer in the S2 to form a first pre-assembly, and gluing the third veneer, the fourth veneer and the veneer to form a second pre-assembly;
s4, installing a temperature sensing assembly in a through hole reserved in the fireproof layer, and then gluing and fixing the first pre-assembly and the second pre-assembly in the S3 to form a finished plywood;
s5, curing and finishing the finished plywood in the S4, and matching with an intelligent alarm box to carry out debugging and inspection, so that the production and preparation can be finished.
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