CN114872419A - Production process of heating decorative gypsum board - Google Patents
Production process of heating decorative gypsum board Download PDFInfo
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- CN114872419A CN114872419A CN202210472450.5A CN202210472450A CN114872419A CN 114872419 A CN114872419 A CN 114872419A CN 202210472450 A CN202210472450 A CN 202210472450A CN 114872419 A CN114872419 A CN 114872419A
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- 239000010440 gypsum Substances 0.000 title claims abstract description 107
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 107
- 238000010438 heat treatment Methods 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 131
- 239000003292 glue Substances 0.000 claims abstract description 85
- 238000005507 spraying Methods 0.000 claims abstract description 77
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 55
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000007731 hot pressing Methods 0.000 claims abstract description 33
- 238000005485 electric heating Methods 0.000 claims abstract description 20
- 230000001681 protective effect Effects 0.000 claims abstract description 18
- 239000002344 surface layer Substances 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 15
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000004080 punching Methods 0.000 claims description 4
- 239000000084 colloidal system Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 239000000741 silica gel Substances 0.000 description 12
- 229910002027 silica gel Inorganic materials 0.000 description 12
- 239000012528 membrane Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229910002804 graphite Inorganic materials 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- -1 graphite alkene Chemical class 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000011507 gypsum plaster Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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Classifications
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1858—Handling of layers or the laminate using vacuum
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
- B32B2038/047—Perforating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a production process of a heating decorative gypsum board, which comprises the following steps: s100, preparing a pretreated substrate; s200, spraying glue to the pretreated substrate for the first time, attaching a reflecting film to the pretreated substrate after glue spraying, and carrying out hot pressing for the first time to obtain a first substrate; s300, spraying glue to the first substrate for the second time, attaching the graphene electric heating film to the glue-sprayed first substrate, and performing hot pressing for the second time to obtain a second substrate; s400, spraying glue to the second substrate for the third time, attaching the protective film to the glue-sprayed second substrate, and carrying out hot pressing for the third time to obtain a third substrate; s500, fourth glue spraying is conducted on the third substrate, the decorative surface layer is attached to the third substrate after glue spraying, and fourth hot pressing is conducted to obtain the heating decorative gypsum board. The invention improves the heat preservation capability of the gypsum board, and the temperature is uniformly raised, thereby being safe to use; the energy-saving device has high energy efficiency and low energy consumption, and reduces the use cost.
Description
Technical Field
The invention relates to the technical field of gypsum boards, in particular to a production process of a heating decorative gypsum board.
Background
Compare in the house of general brick plate structure, the gypsum board texture is lighter and convenient to detach, is the wall material that boxed room is commonly used. However, the heat preservation effect of the gypsum board is poor, especially in cold winter, the gypsum board often cannot play a heat preservation effect, so that the temperature in the house is reduced quickly, the interior is cooled, and in order to improve the comfort level of the box-type house, the heat preservation is carried out by an indoor common air conditioner, an oil heater, a heating furnace and the like.
The traditional heating devices have the defects of large power consumption, space occupation, high cost and low safety. The cost of the air conditioner is high, the air conditioner is not easy to be installed on a gypsum board, and the heating effect is not higher than the loss of temperature; when the oil heater and the heating furnace are used, the local temperature of the wall body is easily high, the wall body is easily baked, so that ornaments on the wall body, such as wallpaper and the like, are peeled off and even spontaneously combust, and great potential safety hazards are caused. And the electricity consumption is large, and the later use cost is high.
Disclosure of Invention
The invention aims to provide a production process of a heating decorative gypsum board, and aims to solve the technical problems of high use cost and centralized heating of a traditional heating device in the prior art.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
the invention provides a production process of a heating decorative gypsum board, which comprises a paper gypsum substrate, a reflecting film, a graphene electrothermal film, a protective film and a decorative layer, and is operated according to the following steps:
s100, carrying out primary sawing treatment on the paper surface gypsum substrate to obtain a pretreated substrate;
s200, spraying glue to the pretreated substrate for the first time, attaching the reflecting film to the pretreated substrate after glue spraying, and carrying out hot pressing for the first time to obtain a first substrate;
s300, spraying glue to the first substrate for the second time, attaching the graphene electric heating film to the glue-sprayed first substrate, and performing hot pressing for the second time to obtain a second substrate;
s400, spraying glue to the second substrate for the third time, attaching the protective film to the glue-sprayed second substrate, and carrying out hot pressing for the third time to obtain a third substrate;
s500, fourth glue spraying is conducted on the third substrate, the decorative surface layer is attached to the third substrate after glue spraying, and fourth hot pressing is conducted to obtain the heating decorative gypsum board.
As a preferable aspect of the present invention, in S100, the primary sawing process includes the steps of:
s101: cutting and sawing the paper surface gypsum substrate into a rectangular plate;
s102: chamfering the long edge of the paper gypsum substrate, wherein the chamfer angle is 4-45 degrees;
s103: and punching the periphery of the paper surface gypsum substrate to enable the edge of the paper surface gypsum substrate to be provided with four through holes.
As a preferable aspect of the present invention, in S103, the passage hole satisfies at least the following condition: the ratio of the diameter to the thickness of the paper-faced gypsum substrate was 16: 12.
As a preferable scheme of the present invention, in step 300, the preparation method of the graphene electrothermal film is as follows:
s301, selecting a graphene film;
s302, mounting electrothermal film conductive strips at the upper end and the lower end of the graphene film;
the length of the electric heating film conductive strip is the same as the side length of the graphene film.
As a preferable scheme of the present invention, the electric heating film conductive bar at least satisfies the following conditions: the electrothermal film conductive bars at the upper end and the lower end respectively pass through the through holes at the upper side and the lower side;
wherein, the electric heat membrane busbar all prolongs to in the through-hole, and both ends are connected with live wire and zero line respectively.
As a preferable scheme of the invention, the method further comprises the following steps:
and S303, installing leveling films at the left end and the right end of the graphene film.
As a preferable aspect of the present invention, the first glue spraying, the second glue spraying, and the third glue spraying at least satisfy: all sprayed on the same side of the paper surface gypsum substrate, and the glue spraying amount is 50-80g/m 2 。
As the inventionIn a preferred embodiment of the present invention, the fourth glue spraying at least satisfies the following conditions: spraying the glue on the front and back sides and the side edges of the third substrate with the glue spraying amount of 50-80g/m 2 。
As a preferable aspect of the present invention, the fourth hot pressing satisfies at least the following conditions: the fourth hot pressing is arranged on the front surface, the back surface and the side edges of the third substrate.
As a preferable aspect of the present invention, the first hot pressing, the second hot pressing, the third hot pressing, and the fourth hot pressing at least satisfy: vacuumizing the workpiece until the surface is smooth, and heating to the colloid melting temperature
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the graphene electrothermal film is arranged on the gypsum board, so that the heating performance of the gypsum board after being electrified is realized, the heat preservation capability of the gypsum board is improved, the heat is uniform, the temperature is uniformly increased when the gypsum board is used, and the gypsum board is safe to use; and the graphene electrothermal film has higher energy efficiency, low energy consumption and reduced use cost.
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 should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic structural view of a heat-generating decorative gypsum board according to the present invention;
fig. 2 is a schematic structural diagram of a graphene electrothermal film in embodiment 1.
The reference numerals in the drawings denote the following, respectively:
1-a paper surface gypsum substrate; 2-a reflective film; 3-a graphene electrothermal film; 4-a protective film; 5-a finishing layer; 6-through the hole;
301-graphene films; 302-electric heating film conductive bar; 303-leveling the film.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
As shown in fig. 1 and 2, the invention provides a production process of a heating decorative gypsum board, which comprises a paper gypsum substrate 1, a reflective film 2, a graphene electrothermal film 3, a protective film 4 and a decorative layer 5, and is operated according to the following steps:
s100, carrying out primary sawing treatment on the paper surface gypsum substrate 1 to obtain a pretreated substrate;
s200, spraying glue to the pretreated substrate for the first time, and attaching the reflecting film 2 to the pretreated substrate after glue spraying to perform hot pressing for the first time to obtain a first substrate;
s300, spraying glue to the first substrate for the second time, and attaching the graphene electrothermal film 3 to the glue-sprayed first substrate for hot pressing for the second time to obtain a second substrate;
s400, spraying glue to the second substrate for the third time, and attaching the protective film 4 to the glue-sprayed second substrate to carry out hot pressing for the third time to obtain a third substrate;
s500, fourth glue spraying is conducted on the third substrate, and fourth hot pressing is conducted on the third substrate after glue spraying is conducted on the facing layer 5 in a fitted mode, so that the heating decorative gypsum board is manufactured. After production is finished, each heating decorative gypsum board is electrified to test the functionality, and the gypsum board leaves the factory after being cured for 24 hours after meeting the requirements.
The graphene electrothermal film is a polyester film heating system which can generate heat energy after being electrified, the heat conversion rate is as high as 99.28%, the heat conversion efficiency of the electric heating system is highest, and the electricity consumption is low when the electric heating system is used. Electric wire on the graphite alkene electric heat membrane 3 passes the decoration gypsum board that generates heat, is connected with external power supply, and external power supply provides the electric energy and heats for graphite alkene electric heat membrane 3 to improve the heat preservation effect of gypsum base plate.
In the above heat-generating decorative gypsum board, the size and treatment of the paper-faced gypsum board may be selected within a wide range, but in order to further improve the heat-insulating property of the gypsum board, it is preferable that in S100, the primary cutting process includes the steps of:
s101: cutting and sawing the paper surface gypsum substrate 1 into a rectangular plate;
s102: chamfering the long edge of the paper gypsum substrate 1, wherein the chamfer angle is 4-45 degrees;
s103: the periphery of the paper surface gypsum substrate 1 is punched to form four through holes 6 at the edge.
The electric wire that the clearing hole 6 was used for supplying on the graphite alkene electric heat membrane 3 passes, and the setting of 6 distributions of clearing hole is in the edge all around of paper gypsum base plate 1 for electric wire on the graphite alkene electric heat membrane 3 can adopt all wiring modes from top to bottom, and the wiring is gone up or down according to the on-the-spot condition realization of being convenient for, convenient actual use.
In the heat-generating decorative gypsum board, the size of the paper-faced gypsum board 1 can be selected within a wide range, but in order to further improve the heat-insulating performance of the gypsum board, the ratio of the thickness, length and width of the paper-faced gypsum board 1 is 12:3000: 1000.
In the above heat-generating decorative gypsum board, the size and treatment form of the passing holes 6 can be selected within a wide range, but in order to further improve the heat-insulating property of the gypsum board, it is preferable that in S103, the passing holes 6 satisfy at least the following conditions: the ratio of the diameter to the thickness of the paper gypsum substrate 1 was 16: 12.
In the above heating decorative gypsum board, the specific installation manner of the graphene electrothermal film 3 can be selected in a wide range, but in order to further improve the thermal insulation performance of the gypsum board and reduce the energy consumption, preferably, in step 300, the preparation method of the graphene electrothermal film 3 is as follows:
s301, selecting a graphene film 301;
s302, mounting electric heating film conductive strips 302 at the upper end and the lower end of the graphene film 301.
In order to increase the conductive effect of the graphene film 301, preferably, the electrothermal film conductive strips 302 are mounted on the upper and lower sides of the graphene film 301, and the electrothermal film conductive strips 302 are pressed on the edge of the graphene film 301.
In the heat-generating decorative gypsum board described above, the aspect ratio of the graphene film 301 may be selected within a wide range, but in order to further improve the heat-insulating performance of the gypsum board, the aspect ratio of the graphene film 301 is 2400: 930.
In the heat-generating decorative gypsum board, the length of the graphene film 301 may be selected from a wide range, but in order to further improve the heat-insulating property of the gypsum board, it is preferable that the ratio of the length of the graphene film 301 to the length of the pretreated substrate is 2400: 3000.
in the heat-generating decorative gypsum board described above, the length of the graphene film 301 may be selected within a wide range, but in order to further improve the heat-insulating performance of the gypsum board, it is preferable that the ratio of the width of the graphene film 301 to the width of the pretreated substrate is 930: 1000.
In the above-mentioned heat-generating decorative gypsum board, the length of the electric heating film conductive strip 302 can be selected in a wide range, but in order to further improve the heat-insulating property of the gypsum board, preferably, the length of the electric heating film conductive strip 302 is the same as the side length of the graphene film 301.
Preferably, the electrothermal film conductive strip 302 at least satisfies the following conditions: the electrothermal film conductive bar 302 at the upper end and the lower end respectively passes through the through holes 6 at the upper side and the lower side, the electrothermal film conductive bar 302 is extended into the through holes 6, and the two ends are respectively connected with the live wire and the zero line. In the above-mentioned heat-generating decorative gypsum board, the length of the electric heating film conductive strip 302 can be selected in a wide range, but in order to further improve the heat-insulating property of the gypsum board, it is preferable that the wiring is made of NH-BRV-1.5 wire, the facing layer is used as the front surface, the left side is connected with the live wire (L) through the hole 6, and the right side is connected with the zero wire (N) through the hole 6.
Preferably, since the ratio of the side length of the pre-processed substrate to the side length of the graphene film 301 is variable, if a gap is left between the two sides of the graphene film 301 and the pre-processed substrate, the step S300 further includes:
and S303, mounting leveling films 303 at the left end and the right end of the graphene film 301.
The sum of the areas of the leveling film 303 and the graphene film 301 is the upper surface area of the pretreatment substrate, the leveling film 303 can effectively help the graphene film 301 to level, if the shape and the area of the graphene film 301 are the same as those of the pretreatment substrate, the graphene film 301 can be self-leveled, and the leveling process of the leveling film 303 can be omitted.
In the above heat-generating decorative gypsum board, the sizes of the reflective film 2 and the protective film 4 can be selected within a wide range, but in order to further improve the beauty and flatness of the gypsum board, it is preferable that the reflective film 2 and the protective film 4 satisfy at least the following conditions: the length and the width are the same as those of the pretreated substrate.
In the above-mentioned decorative gypsum board generates heat, the glue mode of spouting of glue for the first time, spout glue for the second time, spout glue for the third time can be selected in a wide range, but in order to further improve the roughness of gypsum board and the bonding effect of membrane, preferably, spout glue for the first time, spout glue for the second time, spout glue for the third time and satisfy at least: all sprayed on the same side of the paper surface gypsum substrate 1, and the glue spraying amount is 50-80g/m 2 。
In the heat-generating decorative gypsum board, the glue-spraying manner of the fourth glue-spraying may be selected within a wide range, but in order to further improve the aesthetic appearance of the gypsum board, it is preferable that the fourth glue-spraying satisfies at least the following conditions: spraying the glue on the front and back sides and the side edges of the third substrate with the glue spraying amount of 50-80g/m 2 。
In the above heat-generating decorative gypsum board, the range of heat pressing by the fourth heat pressing may be selected from a wide range, but in order to further improve the aesthetic appearance of the gypsum board, it is preferable that the fourth heat pressing satisfies at least the following conditions: the fourth hot pressing is arranged on the front surface of the third substrate.
In the heat-generating decorative gypsum board, the range of the finish layer 5 on the third substrate can be selected from a wide range, but in order to further improve the appearance of the gypsum board, it is preferable that the back surface and the side surface of the third substrate are coated with the finish layer 5 and subjected to a heat press treatment.
In the above heat-generating decorative gypsum board, the heat pressing temperatures of the first heat pressing, the second heat pressing, the third heat pressing, and the fourth heat pressing may be selected within a wide range, but in order to further improve the flatness of the gypsum board, it is preferable that the first heat pressing, the second heat pressing, the third heat pressing, and the fourth heat pressing at least satisfy: and vacuumizing the workpiece until the surface is flat, and heating to the colloid melting temperature.
Example 1
The process of the invention is described in detail by taking cm as the length unit of the paper surface gypsum substrate:
1. primary sawing process
(1) Cutting and sawing the paper surface gypsum substrate into a plate-shaped structure with the length of 300cm, the width of 100cm and the thickness of 1.2 cm;
(2) chamfering the long edge of the paper gypsum substrate, wherein the chamfering angle is 4-45 degrees;
(3) punching holes at the periphery of the paper gypsum substrate, wherein the through holes are positioned at the periphery of the paper gypsum substrate, the diameter of each through hole is 1.6cm, the circle center of the nearest through hole is 3.5cm away from the long edge of the nearest paper gypsum substrate, and the circle center of the nearest through hole is 30cm away from the short edge of the nearest paper gypsum substrate;
(4) and cleaning dust and burrs on the surface after the punching is finished so as to obtain the pretreated substrate.
2. Lamination of reflective films
(1) And (3) glue spraying procedure: cutting the reflecting film to the same size as the gypsum plaster board, namely the length is 300cm, and the width is 100 cm;
placing the front side of the pretreated substrate upwards on a glue spraying table, filling filtered vacuum plastic glue into a glue tank, and adjusting air pressure and a nozzle to obtain a proper glue spraying sector;
spraying a nozzle aiming at the front surface of the pretreated substrate, namely firstly spraying transversely and then spraying vertically until the glue amount on the pretreated substrate is 75 g/square meter, and completely drying the sprayed glue on the pretreated substrate without touching hands;
(2) hot pressing: adjusting the working state of the vacuum plastic sucking machine, adjusting parameters, and placing the pretreated substrate after glue spraying on a workbench with a base plate;
paving the front side of the reflecting film upwards on the pretreated substrate after glue spraying to ensure that the surface of the reflecting film is smooth;
spreading a silica gel plate on the reflecting film, pressing the periphery of the silica gel plate by using a pressing frame, vacuumizing until the reflecting film is flat, putting the reflecting film into a temperature control box, heating to a required temperature, and bonding the reflecting film and the pretreated substrate to obtain a first substrate;
taking out the first substrate after heat preservation and pressure maintaining, uncovering the silica gel plate after pressure relief, and naturally cooling to room temperature;
the reflective film on the first substrate through the hole is removed.
3. Laminating of graphite alkene electric heat membrane
(1) And (3) glue spraying procedure:
cutting the graphene film to a sheet structure with the length of 240cm and the width of 93cm, fixedly attaching leveling films with the same width to two sides of the graphene film, wherein the sum of the lengths of the graphene film and the leveling films is the length of the first substrate, and mounting electric heating film conducting bars with the length of 240cm on the upper edge and the lower edge of the graphene film;
placing the first substrate on a glue spraying table with the front surface facing upwards, filling filtered vacuum plastic glue into a glue tank, and adjusting air pressure and a nozzle to obtain a proper glue spraying sector;
spraying a nozzle aiming at the front surface of the first substrate, namely firstly spraying transversely and then spraying vertically until the glue quantity on the first substrate is 75 g/square meter, and completely drying the sprayed glue on the first substrate without touching hands;
(2) hot pressing: adjusting the working state of the vacuum plastic sucking machine, adjusting parameters, and placing the first substrate after glue spraying on a workbench with a base plate;
laying the graphene film with the front side upward, namely the side provided with the electric heating film conductive strips on the first substrate after glue spraying, so as to ensure that the surface of the graphene film is smooth;
flatly laying a silica gel plate on the graphene film and the leveling film, pressing the periphery of the silica gel plate by using a pressing frame, vacuumizing until the graphene film and the leveling film are leveled, putting the graphene film and the leveling film into a temperature control box, heating to a required temperature, and bonding the graphene film and the leveling film with the first substrate to obtain a second substrate;
and taking out the second substrate after heat preservation and pressure maintaining, uncovering the silica gel plate after pressure relief, and naturally cooling to room temperature.
4. Attachment of protective films
(1) And (3) glue spraying procedure: cutting the protective film to the same size as the gypsum plaster board, namely the length is 300cm, and the width is 100 cm;
placing the second substrate on a glue spraying table with the front surface facing upwards, filling filtered vacuum plastic glue into the glue tank, and adjusting air pressure and a nozzle to obtain a proper glue spraying sector;
spraying a nozzle aiming at the front surface of the second substrate, namely firstly spraying transversely and then spraying vertically until the glue quantity on the second substrate is 75 g/square meter, and completely drying the sprayed glue on the second substrate without touching hands;
(2) hot pressing: adjusting the working state of the vacuum plastic sucking machine, adjusting parameters, and placing the second substrate after glue spraying on a workbench with a base plate;
the protective film is laid on the second substrate after glue spraying in an upward mode, and the surface of the protective film is guaranteed to be flat;
flatly laying a silica gel plate on the protective film, pressing the periphery of the silica gel plate by using a pressing frame, vacuumizing until the protective film is flat, putting the protective film into a temperature control box, heating to a required temperature, and bonding the protective film and the second substrate to obtain a third substrate;
and taking out the third substrate after heat preservation and pressure maintaining, uncovering the silica gel plate after pressure relief, and naturally cooling to room temperature.
5. Application of facing layer
(1) And (3) glue spraying procedure: cutting the veneer layer to a reasonable size;
placing the third substrate on a glue spraying table with the front surface facing upwards, filling filtered vacuum plastic glue into the glue tank, and adjusting air pressure and a nozzle to obtain a proper glue spraying sector;
spraying nozzles aiming at the front surface and the side surface of the third substrate, firstly spraying transversely and then spraying vertically until the glue amount on the third substrate is 75 g/square meter, and completely drying the sprayed glue on the third substrate without touching hands;
(2) hot pressing: adjusting the working state of the vacuum plastic sucking machine, adjusting parameters, and placing the third substrate after glue spraying on a workbench with a base plate;
paving the facing layer on the third substrate with the front side upward after glue spraying to ensure that the surface of the facing layer is smooth;
flatly laying a silica gel plate on the decorative layer, pressing the periphery of the silica gel plate by using a pressing frame, vacuumizing until the decorative layer is flat, putting the decorative layer into a temperature control box, heating to the required temperature, and adhering the decorative layer and a third substrate;
and taking out the gypsum board with the decorative surface layer after heat preservation and pressure maintaining, namely taking out the heating decorative gypsum board, removing the silica gel board after pressure relief, and naturally cooling to room temperature.
Repeating the glue spraying and hot pressing processes to attach the back surface of the gypsum board to the upper decorative surface layer.
6. Wiring
(1) The upper end and the lower end of the electric heating film conductive bar are both connected with an NH-BRV-1.5 wire through the through hole, one surface with the electric heating film conductive bar is taken as the front surface, the lead at the left side is connected with a live wire, and the lead at the right side is connected with a zero wire;
(2) performing wiring test and anti-creeping treatment at the hole;
(3) after the power-on test passed, the through hole was sealed with adhesive plaster.
7. Maintaining
And (5) curing for 24 hours and then leaving the factory.
By the production process of the heating decorative gypsum board, the heating performance of the gypsum board after being electrified can be realized, the heat preservation capability of the gypsum board is improved, the heat is uniform, and the use is safe; and the graphene electrothermal film has higher energy efficiency, low energy consumption and reduced use cost.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (10)
1. The production process of the heating decorative gypsum board is characterized by comprising a paper gypsum substrate, a reflecting film, a graphene electrothermal film, a protective film and a decorative surface layer, and is operated according to the following steps:
s100, carrying out primary sawing treatment on the paper surface gypsum substrate to obtain a pretreated substrate;
s200, spraying glue to the pretreated substrate for the first time, attaching the reflecting film to the pretreated substrate after glue spraying, and carrying out hot pressing for the first time to obtain a first substrate;
s300, spraying glue to the first substrate for the second time, attaching the graphene electric heating film to the glue-sprayed first substrate, and performing hot pressing for the second time to obtain a second substrate;
s400, spraying glue to the second substrate for the third time, attaching the protective film to the glue-sprayed second substrate, and carrying out hot pressing for the third time to obtain a third substrate;
s500, fourth glue spraying is conducted on the third substrate, the decorative surface layer is attached to the third substrate after glue spraying, and fourth hot pressing is conducted to obtain the heating decorative gypsum board.
2. The process for producing a heat-generating decorative gypsum board according to claim 1, wherein in S100, the primary sawing process includes the steps of:
s101: cutting and sawing the paper surface gypsum substrate into a rectangular plate;
s102: chamfering the long edge of the paper gypsum substrate, wherein the chamfer angle is 4-45 degrees;
s103: and punching the periphery of the paper surface gypsum substrate to enable the edge of the paper surface gypsum substrate to be provided with four through holes.
3. The process for producing a heat-generating decorative gypsum board according to claim 2, wherein in S103, the passing holes satisfy at least the following conditions: the ratio of the diameter to the thickness of the paper-faced gypsum substrate was 16: 12.
4. The production process of the heating decorative gypsum board as claimed in claim 3, wherein in step 300, the preparation method of the graphene electrothermal film is as follows:
s301, selecting a graphene film;
s302, mounting electrothermal film conductive strips at the upper end and the lower end of the graphene film;
the length of the electric heating film conductive strip is the same as the side length of the graphene film.
5. The production process of the heating decorative gypsum board as claimed in claim 4, wherein the electric heating film conductive strips at least satisfy the following conditions: the electrothermal film conductive bars at the upper end and the lower end respectively pass through the through holes at the upper side and the lower side;
the electric heating film conductive bar is extended into the through hole, and two ends of the electric heating film conductive bar are connected with the live wire and the zero line respectively.
6. The production process of the heat-generating decorative gypsum board as claimed in claim 4, further comprising the steps of:
and S303, installing leveling films at the left end and the right end of the graphene film.
7. The production process of the heating decorative gypsum board as claimed in claim 1, wherein the first glue spraying, the second glue spraying and the third glue spraying at least satisfy the following requirements: all sprayed on the same side of the paper surface gypsum substrate, and the glue spraying amount is 50-80g/m 2 。
8. The production process of the heat-generating decorative gypsum board as claimed in claim 1, wherein the production process is characterized in thatCharacterized in that the fourth glue spraying at least meets the following conditions: spraying the glue on the front and back sides and the side edges of the third substrate with the glue spraying amount of 50-80g/m 2 。
9. The process for producing a heat-generating decorative gypsum board according to claim 1, wherein the fourth heat pressing satisfies at least the following conditions: the fourth hot pressing is arranged on the front surface, the back surface and the side edges of the third substrate.
10. The process according to claim 9, wherein the first hot pressing, the second hot pressing, the third hot pressing, and the fourth hot pressing at least satisfy: and vacuumizing the workpiece until the surface is flat, and heating to the colloid melting temperature.
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