CN112982871B - Preparation and construction process of light, thin, energy-saving and strong-adhesion large-size wall panel - Google Patents

Preparation and construction process of light, thin, energy-saving and strong-adhesion large-size wall panel Download PDF

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CN112982871B
CN112982871B CN202110187772.0A CN202110187772A CN112982871B CN 112982871 B CN112982871 B CN 112982871B CN 202110187772 A CN202110187772 A CN 202110187772A CN 112982871 B CN112982871 B CN 112982871B
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parts
layer
external wall
wall panel
energy
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CN112982871A (en
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洪明安
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Guangdong Taino Energy Saving New Material Co ltd
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Guangdong Taino Energy Saving New Material Co ltd
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0866—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements composed of several layers, e.g. sandwich panels or layered panels
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29—Laminated material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0875—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/20—Presence of organic materials
    • C09J2400/24—Presence of a foam
    • C09J2400/243—Presence of a foam in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2475/00—Presence of polyurethane
    • C09J2475/006—Presence of polyurethane in the substrate
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

Abstract

The invention relates to the technical field of external front decoration panels, in particular to a preparation method and a construction process of a light, thin, energy-saving and strong-adhesion large-size wall panel. The external wall panel comprises an external wall decorative panel layer, a composite heat-insulating layer, a fiber polymerization bonding layer and a gum adhesive layer, and the preparation process comprises the following preparation steps: weighing raw materials, preparing a heat insulation layer plate, performing composite pressing, drying, trimming to remove excess materials, and positioning and cutting. The gain effect of the invention is: compared with the existing external wall decorative wall panel with the same area, the large-size wall panel prepared by the invention has the advantages of lighter weight, thinner thickness, convenience in installation and strong adhesive property. The adhesive force is strong, the wall surface can not fall off after being blown by wind and sun for a long time, the wall surface is convenient to arrange, arrange and install, and the wall surface does not need to be leveled for many times after installation, so that the whole appearance of the wall surface is smooth and tidy. The service life is long. Has good heat insulation, heat preservation, fire resistance, flame retardance, shock absorption, water resistance and other energy-saving effects.

Description

Preparation and construction process of light, thin, energy-saving and strong-adhesion large-size wall panel
Technical Field
The invention relates to the technical field of external and front decoration panels, in particular to a preparation method and a construction process of a light, thin, energy-saving and strong-adhesion large-size wall panel.
Background
The heat insulation personal performance of the building exterior wall envelope structure directly influences the heating and energy consumption of the building. Along with the daily shortage of earth resources, the energy supply is more and more tense, the energy-saving building design is more and more concerned and more emphasized by people, corresponding popularization standards are also promoted in the country and various regions, and more people begin to make an effort to research and develop the decoration, heat preservation and heat insulation technology of buildings, particularly the outer walls of the buildings.
At present, the outer wall of a building mainly achieves the purposes of decoration, heat insulation and heat preservation by additionally arranging a wall panel, and the wall panels adopted by outer wall decoration materials in the market have different sizes and specifications and are mainly divided into a large-size wall panel and a small-block wall panel.
Although small wall panels are generally adhered by a method, the small wall panels are convenient to install and easy to attach to a wall body, but the small wall panels are poor in integrity, the wall surface is difficult to ensure to be flat after installation, the overall appearance of a building is affected due to the fact that the small wall panels are often uneven after installation for a period of time, and the tiles are forbidden to be used in the plain text in high-rise buildings in China due to the fact that the small wall panels are easy to fall off.
Although the large-sized wall panel is flat after being installed, the situation that the decorative wall surface is deformed is not easy to occur, but the large-sized wall panel cannot be directly attached to the outer wall surface and the decorative surface of a building, because the panel has large area and heavy mass, the large-sized wall panel is installed on the wall surface of the building in a dry hanging mode or hung on a steel frame additionally arranged on the outer wall surface in an empty hanging mode, and the installation is carried out by punching holes on the wall body and inserting hooks and positioning connecting fasteners additionally arranged on the back surface of the decorative wall panel in the installation process, so that the installation mode has complex construction procedures, the punching holes on the wall body can damage the overall strength of the wall body, the attachment firmness is poor, the large-sized wall panel is easy to fall off after a period of time, larger installation hidden troubles exist, the large-sized wall panel has heavy mass, and the weight of a square wall panel is 20-50 kilograms, the wall panel is large in carrying difficulty, the wall panel can be hung externally on the wall only by the aid of large-scale hoisting machinery, the thickness of the existing large-size wall panel is more than 60-80mm, the wall panel can be installed on the outer wall only in a dry hanging mode, a large amount of movable space needs to be occupied after the wall panel is installed, and great resource waste is caused.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a preparation method and a construction process of a light, thin, energy-saving and strong-adhesion large-size wall panel, the provided large-size wall panel has the characteristics of lightness, thinness, energy saving, capability of being directly pasted on the outer wall of a building for construction, flexible bending crack resistance, high-end decoration and non-combustion fire resistance, easy wall mounting, high construction efficiency and low construction cost; the method has the characteristics of convenient manufacture, high production efficiency and stable quality.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a frivolous energy-conserving adnexed big specification side fascia by force, the side fascia includes outer wall veneer panel layer, compound thermal-insulated heat preservation, fibre polymerization tie coat and gum paste agent layer, compound thermal-insulated heat preservation is mixed by trompil pearlite granule, asbestos and two ingredient polyurethane foaming composition and is made, 6-12 parts of trompil pearlite granule, 18-26 parts of asbestos, two ingredient polyurethane foaming composition include: the polyurethane polyether polyol and the isocyanate have the following weight parts of 1.4-1.8, wherein the polyurethane polyether polyol comprises 8-13 parts of polyether polyol, 30-48 parts of foaming polyurethane, 1-3 parts of latex powder, 2-4 parts of an auxiliary foaming agent, 16-25 parts of diatomite, 1-4 parts of magnesium oxide, 0.6-1 part of a cross-linking agent, 0.3-0.5 part of a catalyst and 2-3.5 parts of a foam homogenizing agent; the isocyanate comprises 23-28 parts of isophorone diisocyanate, 16-19 parts of lysine diisocyanate, 10-12 parts of diphenylmethane diisocyanate, 1-2 parts of an anti-halogen agent and 5-8 parts of an inorganic binder; the fiber polymerization bonding layer comprises quartz sand, composite viscose cement and glass fiber gridding cloth embedded in the composite viscose cement, and a back adhesive layer is coated on the back of the fiber polymerization bonding layer.
Preferably, the outer wall decoration panel layer is a ceramic panel or a ceramic tile panel.
Preferably, the anti-halogen agent is oxalic acid, hydrochloric acid or sulfuric acid.
Preferably, the quartz sand has the granularity of 0.1-0.8, and the gram weight of the glass fiber mesh cloth is 105-115g/m 2 。
Preferably, the glass fiber mesh cloth is provided with at least two layers.
Preferably, the length and width of the thin, energy-saving and strong-adhesion large-size external wallboard is at least 1.2m x 1.6m, and the thickness of the thin, energy-saving and strong-adhesion large-size external wallboard is 20-50mm.
A preparation process of a light, thin, energy-saving and strong-adhesion large-size external wall panel comprises the following preparation steps:
(1) Weighing the following raw materials:
weighing the raw materials according to 6-12 parts of open-cell perlite particles, 18-26 parts of asbestos, 8-13 parts of polyether polyol, 30-48 parts of foamed polyurethane, 1-3 parts of latex powder, 2-4 parts of auxiliary foaming agent, 16-25 parts of diatomite, 1-4 parts of magnesium oxide, 0.6-1 part of cross-linking agent, 0.3-0.5 part of catalyst, 2-3.5 parts of foam homogenizing agent, 23-28 parts of isophorone diisocyanate, 16-19 parts of lysine diisocyanate, 10-12 parts of diphenylmethane diisocyanate, 1-2 parts of halogen-resistant agent and 5-8 parts of inorganic binder for later use;
(2) Preparing a composite heat insulation layer:
respectively mixing the raw materials weighed according to the parts by weight according to a formula to obtain polyurethane polyether polyol and isocyanate, adding the polyurethane polyether polyol, the isocyanate, the open-cell perlite particles, the asbestos, the halogen-resistant agent and the inorganic binder into a mixing and stirring foaming machine according to the parts by weight for mixing and stirring treatment, setting the stirring temperature to 50-70 ℃, uniformly mixing for 16-20min, then sending the mixed mixture into the foaming machine for foaming treatment for 13-20s, preparing for extrusion,
(3) And (3) composite pressing:
placing the bottom layer outer wall veneer layer on a conveying crawler belt and conveying the bottom layer outer wall veneer layer into an oven, heating the outer wall veneer layer, setting the temperature in the oven to be 40-70 ℃, continuously conveying the bottom layer outer wall veneer layer out after heating, when the outer wall veneer layer is conveyed to the lower part of a foaming extruder, transversely spraying the foaming extruder head along the outer wall veneer layer in a reciprocating manner, uniformly coating the foamed material of the composite heat insulation layer after foaming in the step 2 on the inner side surface of the outer wall veneer layer, conveying the composite heat insulation layer and the fiber polymerization bonding layer into a laminating crawler belt machine of a laminating pipeline together through the conveying crawler belt after the composite heat insulation layer is pre-coated, setting the fiber polymerization bonding layer on the upper surface of the composite heat insulation layer and the outer wall veneer layer to form a sandwich composite structure for clamping the composite heat insulation layer in the middle, firmly laminating the composite heat insulation layer and the fiber polymerization bonding layer through the laminating crawler belt machine, setting the curing temperature in the laminating crawler belt to be 40-70 ℃, and conveying the cured material of the outer wall veneer layer, and preparing the large-size light and energy-saving initial adhesion external wall veneer;
(4) And (3) drying:
sending the light, thin, energy-saving and strong-adhesion large-size external wall panel into a dryer for drying treatment, wherein the drying temperature is 160-180 ℃, and the drying time is 3-15 min;
(5) Trimming and removing excess materials:
sending the dried light, thin, energy-saving and strong-adhesion large-size external wall panel into a trimming machine, and taking out foaming excess materials of the composite heat-insulating layer extending out of the two sides of the panel after being extruded by a trimming grinding wheel after the external wall panel is aligned by a deviation rectifying mechanism;
(6) Positioning and cutting:
and continuously conveying the trimmed plate to a cutting machine, cutting the plate into a plate with a preset length by a cutting knife wheel after the front end part of the plate is positioned, coating the back adhesive on the back surface of the plate to form a back adhesive layer, and finishing the preparation of the light, thin, energy-saving and strong-adhesion large-size external wall plate.
A construction process of a light, thin, energy-saving and strong-adhesion large-size external wall panel comprises the following steps:
step one, treating an outer wall surface base layer:
the wall surface is picked, chiseled and screeded, and the wall surface is cleaned;
step two, treating the external wall panel:
checking the color difference, the right angle and the warping degree of each external wall panel, selecting the external wall panels meeting the requirements, coating the back surfaces of the selected external wall panels with the gum adhesive, and arranging for later use;
step three, positioning treatment of the outer wall surface:
measuring and leveling the wall surface to determine the brick arrangement position, and drilling a positioning hole by a spring line;
step four, laminating the external wall panel:
installing auxiliary anchoring parts layer by layer from bottom to top according to the area divided by the elastic line in the step two, uniformly coating adhesive plaster on the outer wall surface, sequentially embedding the large-size outer wall boards into the auxiliary anchoring parts layer by layer from bottom to top and pressing and adhering the large-size outer wall boards with the adhesive plaster;
step five, fixing the external wall panel:
after the lower large-sized external wall panel is attached and installed, an auxiliary anchoring piece is installed along the elastic line position above the lower large-sized external wall panel to fix the position of the large-sized external wall panel, and the large-sized external wall panel is installed upwards layer by layer;
step six, gap filling and trowelling treatment:
and (3) pressing joint filling mortar inwards from the joints of all the external wall panels to fill the joints of the external wall panels with the joint filling mortar, scraping and cleaning the redundant joint filling mortar and enabling the wall surface to be smooth and clean.
Compared with the prior art, the gain effect of the invention is as follows:
compared with the existing external wall decorative wall panel with the same area, the large-size wall panel prepared by the invention has the advantages of lighter weight, thinner thickness, convenience in installation and strong adhesive property.
2 the large-size wall panel provided by the invention can be firmly installed on the outer wall surface by directly firmly matching the auxiliary anchoring piece through the adhesive bonding cement and the newly developed composite heat insulation layer and the fiber polymerization adhesive layer, has strong adhesive force, can not fall off after being blown and dried for a long time, is convenient to position, discharge and install, does not need to be leveled for many times after being installed, and ensures the smooth and tidy appearance of the whole wall surface.
3 the large-size wall panel provided by the invention is characterized in that the outermost outer wall veneer layer is combined with the newly developed composite heat-insulating layer of the inner layer, the outer wall veneer layer has the characteristics of high hardness and easy cleaning, different materials and textures can be selected according to different requirements for composite production, different visual effects are generated, and the large-size wall panel is suitable for buildings of various styles, attractive and elegant, the composite heat-insulating layer of the inner layer has a good energy-saving effect, low water absorption rate, good anti-seepage effect, low deformation rate caused by heat expansion and cold contraction, difficult deformation and cracking, the integral integrity of the wall panel can be well maintained, the service life is long, and the material selection and the careful design and development of a construction method can enable the product design and service life to reach 50 years: the outer layer of the outer wall veneer layer has rigidity, hardness and flexibility, and the inner layer of the composite heat insulation layer has flexibility and economy.
4 the large-size wall panel provided by the invention has good energy-saving effects of heat insulation, heat preservation, fire resistance, flame retardance, shock absorption, water resistance and the like through inspection, the interior of a building after installation is kept warm in winter and cool in summer, the purpose of further saving energy is realized, and the requirement of environmental protection is met.
5 the large-size wall panel provided by the invention has a very thin thickness, and can be directly attached to the outer wall without adopting other dry hanging components on the upper wall, so that the transverse occupied space is effectively reduced, and the construction land can be further optimized and utilized.
6, the adopted construction process is to add a specially-made auxiliary anchoring piece on the basis of the traditional wet sticking method, so that the operation is simple, safe and reliable; the method can be directly installed on the outer wall in a sticking mode instead of a dry hanging mode, greatly reduces the labor cost of outer wall decoration, improves the construction efficiency and the construction quality, and can save steel, increase the space, reduce the manufacturing cost and accelerate the construction speed compared with a dry hanging method; the construction process has integral firmness and durability. The difficult problems that the large-size external wall panel cannot be wet-hung, is not easy to fix, and is easy to hollowly bulge and fall are mainly solved. Adopt supplementary anchor assembly and cement mortar dual fixed, effectively avoided traditional wet wall brick middle cement layer hollowing easily to fall off the durability poor, it is big to have improved the inside cavity occupation space of dry-hang technology, and ironware easily corrodes, receives the collision damage easily, installs inconvenient defect, and whole firm degree is superior to wet, hangs futilely.
7 the large-size external wall panel is far lighter than the existing wall tiles with the same specification on the market, and has better heat insulation and energy saving effects, the thickness of the large-size external wall panel is only 1/3 of that of the existing large-size panel which can achieve the heat insulation and preservation effects, the using space of a building using the large-size external wall panel is greatly increased, the purposes of energy conservation and environmental protection and energy consumption reduction are achieved, and the requirements of green buildings are met.
8 the structure, the preparation process and the construction process of the large-size external wall panel are effectively combined to form an integral system, and the application of the whole system can achieve social benefits and social values and can replace the effects of rapid manufacturing, high-efficiency construction, energy conservation and emission reduction which cannot be met and realized in the prior industry.
Compared with the existing products with the same specification, the large-size external wall panel has large-size sea chrysanthemum with high bending resistance and good compressive resistance, and is not easy to break under pressure during production and construction by improving equipment and production procedures adopted in the preparation process, so that the generation loss rate is effectively reduced; moreover, compared with the traditional large-size dry wall-hung stone/brick which only plays a role in decoration, the wall-hung stone/brick has the advantages that the cost is reduced by 50-60%, the energy-saving efficiency of a building using the large-size external wall panel system can be improved by more than 50%, and the social value generated by the whole system is far and huge and has high industrial value.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a flow chart of the installation process of the present invention.
Detailed Description
The present invention will be further described with reference to the following embodiments.
To further clarify the objects, features and functions of the present invention, a review of the following is made of an enabling description of the invention in connection with the preferred embodiments:
the composition of shingle nail: the light, thin, energy-saving and strong-adhesion large-size external wall panel comprises an external wall veneer layer, a composite heat-insulating layer, a fiber polymerization bonding layer and a gum adhesive layer, wherein the composite heat-insulating layer is prepared by mixing open-cell perlite particles, asbestos and a two-component polyurethane foaming composition, the open-cell perlite particles are 6-12 parts, the asbestos is 18-26 parts, and the two-component polyurethane foaming composition comprises: the polyurethane polyether polyol comprises polyurethane polyether polyol and isocyanate, wherein the weight part ratio of the polyurethane polyether polyol to the isocyanate is (1.4-1.8); the isocyanate comprises 23-28 parts of isophorone diisocyanate, 16-19 parts of lysine diisocyanate, 10-12 parts of diphenylmethane diisocyanate, 1-2 parts of an anti-halogen agent and 5-8 parts of an inorganic binder; the fiber polymerization bonding layer comprises quartz sand, composite viscose cement and glass fiber gridding cloth embedded in the composite viscose cement, and a back adhesive layer is coated on the back of the fiber polymerization bonding layer.
Preferably, the outer wall decoration panel layer is a ceramic panel or a ceramic tile panel.
Preferably, the anti-halogen agent is oxalic acid, hydrochloric acid or sulfuric acid.
Preferably, the quartz sand has the granularity of 0.1-0.8, and the gram weight of the glass fiber mesh cloth is 105-115g/m 2 。
Preferably, the glass fiber mesh cloth is provided with at least two layers.
Preferably, the length and width of the thin, energy-saving and strong-adhesion large-size external wallboard is at least 1.2m x 1.6m, and the thickness of the thin, energy-saving and strong-adhesion large-size external wallboard is 20-50mm.
A preparation process of a light, thin, energy-saving and strong-adhesion large-size external wall panel comprises the following preparation steps:
(1) Weighing the following raw materials:
weighing the raw materials according to 6-12 parts of open-cell perlite particles, 18-26 parts of asbestos, 8-13 parts of polyether polyol, 30-48 parts of foamed polyurethane, 1-3 parts of emulsion powder, 2-4 parts of auxiliary foaming agent, 16-25 parts of diatomite, 1-4 parts of magnesium oxide, 0.6-1 part of cross-linking agent, 0.3-0.5 part of catalyst, 2-3.5 parts of foam homogenizing agent, 23-28 parts of isophorone diisocyanate, 16-19 parts of lysine diisocyanate, 10-12 parts of diphenylmethane diisocyanate, 1-2 parts of halogen-resistant agent and 5-8 parts of inorganic binder for later use;
(2) Preparing a composite heat insulation layer:
respectively mixing the raw materials weighed according to the parts by weight according to a formula to obtain polyurethane polyether polyol and isocyanate, adding the polyurethane polyether polyol, the isocyanate, the open-cell perlite particles, the asbestos, the halogen-resistant agent and the inorganic binder into a mixing and stirring foaming machine according to the parts by weight for mixing and stirring treatment, setting the stirring temperature to 50-70 ℃, uniformly mixing for 16-20min, then sending the mixed mixture into the foaming machine for foaming treatment for 13-20s, preparing for extrusion,
(3) And (3) composite pressing:
placing the bottom layer outer wall veneer layer on a conveying crawler belt and conveying the bottom layer outer wall veneer layer into an oven, heating the outer wall veneer layer, setting the temperature in the oven to be 40-70 ℃, continuously conveying the bottom layer outer wall veneer layer out after heating, when the outer wall veneer layer is conveyed to the lower part of a foaming extruder, transversely spraying the foaming extruder head along the outer wall veneer layer in a reciprocating manner, uniformly coating the foamed material of the composite heat insulation layer after foaming in the step 2 on the inner side surface of the outer wall veneer layer, conveying the composite heat insulation layer and the fiber polymerization bonding layer into a laminating crawler belt machine of a laminating pipeline together through the conveying crawler belt after the composite heat insulation layer is pre-coated, setting the fiber polymerization bonding layer on the upper surface of the composite heat insulation layer and the outer wall veneer layer to form a sandwich composite structure for clamping the composite heat insulation layer in the middle, firmly laminating the composite heat insulation layer and the fiber polymerization bonding layer through the laminating crawler belt machine, setting the curing temperature in the laminating crawler belt to be 40-70 ℃, and conveying the cured material of the outer wall veneer layer, and preparing the large-size light and energy-saving initial adhesion external wall veneer;
(4) Drying:
sending the light, thin, energy-saving and strong-adhesion large-size external wall panel into a dryer for drying treatment, wherein the drying temperature is 160-180 ℃, and the drying time is 3-15 min;
(5) Trimming and removing excess materials:
sending the dried light, thin, energy-saving and strong-adhesion large-size external wall panel into a trimming machine, and taking out foaming excess materials of the composite heat-insulating layer extending out of the two sides of the panel after being extruded by a trimming grinding wheel after the external wall panel is aligned by a deviation rectifying mechanism;
(6) Positioning and cutting:
and continuously conveying the trimmed plate to a cutting machine, cutting the plate into a plate with a preset length by a cutting knife wheel after the front end part of the plate is positioned, coating the back adhesive on the back surface of the plate to form a back adhesive layer, and finishing the preparation of the light, thin, energy-saving and strong-adhesion large-size external wall plate.
A construction process of a light, thin, energy-saving and strong-adhesion large-size external wall panel comprises the following steps:
step one, treating an outer wall surface base layer:
the wall surface is picked, chiseled and screeded, and the wall surface is cleaned;
step two, treating the external wall panel:
checking the color difference, the right angle and the warping degree of each external wall panel, selecting the external wall panels meeting the requirements, coating the back surfaces of the selected external wall panels with a back adhesive, and arranging for later use;
step three, positioning treatment of the outer wall surface:
measuring and leveling the wall surface to determine the brick arrangement position, and snapping a line to drill a positioning hole;
step four, laminating the external wall panel:
installing auxiliary anchoring parts layer by layer from bottom to top according to the area divided by the elastic line in the step two, uniformly coating adhesive plaster on the outer wall surface, embedding large-size outer wall boards into the auxiliary anchoring parts layer by layer from bottom to top in sequence and pressing and attaching the large-size outer wall boards to the adhesive plaster;
step five, fixing the external wall panel:
after the lower layer of large-sized external wall panel is attached and installed, installing auxiliary anchoring parts along the elastic line position above the large-sized external wall panel to fix the position of the large-sized external wall panel, and installing the large-sized external wall panel layer by layer upwards;
step six, gap filling and trowelling treatment:
and (3) pressing joint filling cement inwards from the joints of all the external wall panels to ensure that the joints of the external wall panels are filled with the joint filling cement, scraping and cleaning the redundant joint filling cement and ensuring that the wall surface is flat, smooth and clean.
The light, energy-saving and strong-adhesion large-size external wall panel is characterized by comprising an external wall decorative panel layer, a composite heat-insulating layer, a fiber polymerization bonding layer and a back adhesive layer, wherein the composite heat-insulating layer is prepared by mixing 6-12 parts of open-pore perlite particles, 14-16 parts of magnesium oxide, 25-45 parts of diatomite, 30-48 parts of foamed polyurethane, 18-26 parts of asbestos, 5-8 parts of an inorganic binder, 1-3 parts of latex powder, 1-2 parts of an anti-halogen agent and 2-4 parts of an auxiliary foaming agent, the fiber polymerization bonding layer comprises quartz sand, complex adhesive cement and glass fiber mesh cloth embedded in the complex adhesive cement, and the back adhesive layer is coated on the bottom surface of the fiber polymerization bonding layer. Has better bonding effect after being mixed with the materials.
Preferably, the outer wall decorative panel layer is a ceramic panel or a ceramic tile panel.
Preferably, the anti-halogen agent is oxalic acid, hydrochloric acid or sulfuric acid.
Preferably, the quartz sand has the granularity of 0.1-0.8, and the gram weight of the glass fiber mesh cloth is 105-115g/m 2 。
Preferably, the glass fiber mesh cloth is provided with at least two layers.
Preferably, the length and width of the thin, energy-saving and strong-adhesion large-size external wall panel is at least 1.2m x 1.6m, and the thickness of the thin, energy-saving and strong-adhesion large-size external wall panel is 15-25cm.
The invention discloses a preparation method of a light, thin, energy-saving and strong-adhesion large-size external wall panel, which comprises the following steps:
example 1:
a preparation technology of a light, thin, energy-saving and strong-adhesion large-size external wall panel is characterized by comprising the following steps: the preparation method comprises the following preparation steps:
(1) Weighing the following raw materials:
weighing the raw materials according to 2 parts of open-cell perlite particles, 20 parts of asbestos, 8 parts of polyether polyol, 35 parts of foamed polyurethane, 1 part of latex powder, 4 parts of auxiliary foaming agent, 23 parts of diatomite, 1 part of magnesium oxide, 0.8 part of cross-linking agent, 0.3 part of catalyst, 3 parts of foam homogenizing agent, 23 parts of isophorone diisocyanate, 19 parts of lysine diisocyanate, 11 parts of diphenylmethane diisocyanate, 1 part of hydrochloric acid and 6 parts of inorganic binder for later use;
(2) Preparing a composite heat insulation layer:
the preparation method comprises the steps of respectively mixing the raw materials weighed according to the parts by weight according to a formula to obtain polyurethane polyether polyol and isocyanate, combining the polyurethane polyether polyol and the isocyanate according to the weight part ratio of 1.5, adding the weighed open-cell perlite particles, asbestos, an anti-halogen agent and an inorganic binder into a mixing and stirring foaming machine for mixing and stirring treatment, setting the stirring temperature to 70 ℃, uniformly mixing for 20min, sending the mixed mixture into the foaming machine for foaming treatment, wherein the foaming time is 15s, preparing for extrusion,
(3) Performing composite pressing:
placing the bottom layer outer wall veneer layer-ceramic tile panel on a conveying crawler belt and sending the bottom layer outer wall veneer layer-ceramic tile panel into an oven, heating the outer wall veneer layer, setting the temperature in the oven to be 40 ℃, continuously sending the heated outer wall veneer layer out by a conveying rate, when the outer wall veneer layer is sent to the lower part of a foaming extruder, transversely spraying the foaming extruder in a reciprocating manner along the outer wall veneer layer, uniformly coating the foaming material of the composite heat-insulating layer foamed in the step 2 on the inner side surface of the outer wall veneer layer, after the pre-coating of the composite heat-insulating layer is finished, sending the foaming material and the fiber polymerization bonding layer into a press-fit crawler belt machine of a press-fit pipeline by the conveying crawler belt, wherein the temperature in the press-fit pipeline is 40 ℃, the fiber polymerization bonding layer is arranged on the upper surface of the composite heat-insulating layer and forms an interlayer composite structure with the outer wall veneer layer to clamp the composite heat-insulating layer in the middle, firmly press-fit the outer wall veneer layer, the composite heat-insulating layer and the fiber polymerization bonding layer by the press-fit crawler belt machine, setting the curing temperature in the press-fit machine to be 65 ℃, sending the light and thin and sending the cured material after the press-fit, and obtaining the initial material of the large-size outer wall veneer with strong energy-saving and strong heat-saving adhesion;
(4) And (3) drying:
sending the light, thin, energy-saving and strong-adhesion large-size external wall panel into a dryer for drying treatment, wherein the drying temperature is 180 ℃, and the drying time is 5min;
(5) Trimming and removing excess materials:
feeding the dried plate into a trimmer, and taking out excess materials extending out of two sides of the plate after being extruded by a trimming grinding wheel after the plate is positioned by a deviation correcting mechanism;
(6) Positioning and cutting:
and continuously conveying the trimmed plate to a cutting machine, cutting the plate into a plate with a preset length by a cutting knife wheel after the front end part of the plate is positioned, and coating the back adhesive on the back surface of the plate to finish the preparation of the light, thin, energy-saving and strong-adhesion large-size external wall plate.
The thickness of the large-size outer wall plate prepared by the embodiment is 30mm, and the large-size outer wall plate has the characteristics of good heat insulation performance, higher integral crack resistance and falling resistance strength and strong adhesion performance.
Example 2:
a preparation technology of a light, thin, energy-saving and strong-adhesion large-size external wall panel is characterized by comprising the following steps: the preparation method comprises the following preparation steps:
(1) Weighing the following raw materials:
weighing 6 parts of open-cell perlite particles, 18 parts of asbestos, 13 parts of polyether polyol, 48 parts of foamed polyurethane, 3 parts of latex powder, 2 parts of auxiliary foaming agent, 25 parts of diatomite, 1 part of magnesium oxide, 1 part of cross-linking agent, 0.5 part of catalyst, 2 parts of foam stabilizer, 23 parts of isophorone diisocyanate, 16 parts of lysine diisocyanate, 10 parts of diphenylmethane diisocyanate, 2 parts of sulfuric acid and 8 parts of inorganic binder for later use;
(2) Preparing a composite heat insulation layer:
mixing the raw materials weighed according to the parts by weight according to a formula respectively to obtain polyurethane polyether polyol and isocyanate, combining the polyurethane polyether polyol and the isocyanate according to the weight part ratio of 1.4, adding the weighed open-cell perlite particles, asbestos, an anti-halogen agent and an inorganic binder into a mixing and stirring foaming machine for mixing and stirring treatment, setting the stirring temperature to 55 ℃, uniformly mixing for 20min, then sending the mixed mixture into the foaming machine for foaming treatment, wherein the foaming time is 20s, preparing for extrusion,
(3) And (3) composite pressing:
placing the bottom layer outer wall veneer layer-ceramic panel on a conveying crawler belt and sending the bottom layer outer wall veneer layer-ceramic panel into an oven, heating the outer wall veneer layer, setting the temperature in the oven to 65 ℃, continuously sending the ceramic panel by the conveying rate after heating, when the outer wall veneer layer is sent to the lower part of a foaming extruder, transversely spraying the foaming extruder along the outer wall veneer layer in a reciprocating manner, uniformly coating the foaming material of the composite heat insulation layer foamed in the step 2 on the inner side surface of the outer wall veneer layer, after the pre-coating of the composite heat insulation layer is finished, sending the foaming material and the fiber polymerization bonding layer into a press-fit crawler belt machine of a press-fit pipeline through the conveying crawler belt, wherein the temperature in the press-fit pipeline is 30 ℃, the fiber polymerization bonding layer is arranged on the upper surface of the composite heat insulation layer and forms an interlayer composite structure with the outer wall veneer layer to clamp the composite heat insulation layer in the middle, firmly pressing and curing the outer wall veneer layer, the composite heat insulation layer and the fiber polymerization bonding layer through the press-fit crawler belt machine, setting the curing temperature in the curing machine to 65 ℃, and sending the obtained the initial material of the large-size outer wall veneer with strong energy saving effect by the conveying crawler belt;
(4) And (3) drying:
sending the light, thin, energy-saving and strong-adhesion large-size external wall panel into a dryer for drying treatment, wherein the drying temperature is 160 ℃, and the drying time is 15min;
(5) Trimming and removing excess materials:
feeding the dried plate into a trimmer, and taking out excess materials extending out of two sides of the plate after being extruded by a trimming grinding wheel after the plate is positioned by a deviation correcting mechanism;
(6) Positioning and cutting:
and continuously conveying the trimmed plate to a cutting machine, cutting the plate into a plate with a preset length by a cutting knife wheel after the front end part of the plate is positioned, and coating the back adhesive on the back surface of the plate to finish the preparation of the light, thin, energy-saving and strong-adhesion large-size external wall panel.
The thickness of the large-size outer wall plate prepared by the embodiment is 40mm, and the large-size outer wall plate has the characteristics of good heat insulation performance, higher integral crack and drop resistance strength, strong adhesion performance and excellent fireproof performance.
Example 3:
a preparation technology of a light, thin, energy-saving and strong-adhesion large-size external wall panel is characterized by comprising the following steps: the preparation method comprises the following preparation steps:
(1) Weighing the following raw materials:
weighing the raw materials according to 12 parts of open-cell perlite particles, 26 parts of asbestos, 13 parts of polyether polyol, 45 parts of foamed polyurethane, 3 parts of latex powder, 4 parts of auxiliary foaming agent, 25 parts of diatomite, 4 parts of magnesium oxide, 0.9 part of cross-linking agent, 0.3 part of catalyst, 3.3 parts of foam stabilizer, 28 parts of isophorone diisocyanate, 19 parts of lysine diisocyanate, 12 parts of diphenylmethane diisocyanate, 2 parts of oxalic acid and 8 parts of inorganic binder for later use;
(2) Preparing a composite heat insulation layer:
the preparation method comprises the steps of respectively mixing the raw materials weighed according to the parts by weight according to a formula to obtain polyurethane polyether polyol and isocyanate, combining the polyurethane polyether polyol and the isocyanate according to the weight part ratio of 1.8, adding the weighed open-cell perlite particles, asbestos, an anti-halogen agent and an inorganic binder into a mixing and stirring foaming machine for mixing and stirring treatment, setting the stirring temperature to 50 ℃, uniformly mixing for 20min, sending the mixed mixture into the foaming machine for foaming treatment, wherein the foaming time is 15s, preparing for extrusion,
(3) And (3) composite pressing:
feeding the bottom layer outer wall veneer layer-ceramic tile panel into an oven on a conveying crawler, heating the outer wall veneer layer, setting the temperature in the oven to 65 ℃, continuously feeding the outer wall veneer layer after heating, feeding the outer wall veneer layer below a foaming extruder by a conveying rate, transversely spraying the foaming extruder along the outer wall veneer layer in a reciprocating manner, uniformly coating the foamed material of the composite heat insulation layer foamed in the step 2 on the inner side surface of the outer wall veneer layer, feeding the composite heat insulation layer and the fiber polymerization bonding layer into a laminating crawler of a laminating pipeline through the conveying crawler after the composite heat insulation layer is pre-coated, clamping the composite heat insulation layer in the middle by the fiber polymerization bonding layer arranged on the upper surface of the composite heat insulation layer and forming an interlayer composite structure with the outer wall veneer layer, firmly pressing the outer wall veneer layer, the composite heat insulation layer and the fiber polymerization bonding layer through the laminating crawler, setting the curing temperature in the laminating machine to 50 ℃, and feeding the cured material by the conveying crawler, thereby preparing the initial material of the large-size outer wall veneer with strong energy-saving and strong adhesion;
(4) Drying:
sending the light, thin, energy-saving and strong-adhesion large-size external wall panel into a dryer for drying treatment, wherein the drying temperature is 180 ℃, and the drying time is 5min;
(5) Trimming and removing excess materials:
feeding the dried plate into a trimmer, and taking out excess materials extending out of two sides of the plate after being extruded by a trimming grinding wheel after the plate is positioned by a deviation correcting mechanism;
(6) Positioning and cutting:
and continuously conveying the trimmed plate to a cutting machine, cutting the plate into a plate with a preset length by a cutting knife wheel after the front end part of the plate is positioned, and coating the back adhesive on the back surface of the plate to finish the preparation of the light, thin, energy-saving and strong-adhesion large-size external wall panel.
The large-size external wall plate prepared by the embodiment has the characteristics that the thickness is 25mm, the falling resistance is higher, the weight is light, and the heat insulation performance and the adhesion performance are superior to those of the embodiment 1 and the embodiment 2.
The upper wall process construction step:
the construction process of the light, thin, energy-saving and strong-adhesion large-size external wall panel is characterized by comprising the following steps of:
step one, treating an outer wall surface base layer:
the wall surface is chiseled and smoothed, and the wall surface is cleaned, so that the outer wall surface is kept flat;
step two, treating the external wall panel:
checking the color difference, the right angle and the warping degree of each external wall panel, selecting the external wall panels meeting the requirements, coating a layer of gum adhesive on the back surfaces of the selected external wall panels, and arranging for later use;
step three, positioning treatment of the outer wall surface:
measuring and leveling the wall surface to determine the brick arrangement position, and drilling a positioning hole by a spring line;
step four, laminating the external wall panel:
installing auxiliary anchoring parts layer by layer from the bottom to the top according to the area divided by the elastic threads in the second step, uniformly coating adhesive plaster on the outer wall surface, embedding the large-sized outer wall boards into the auxiliary anchoring parts layer by layer from the bottom to the top in sequence and pressing and adhering the auxiliary anchoring parts with the adhesive plaster, wherein the auxiliary anchoring parts adopted by the installation process are detected by the national security quality supervision and inspection center, the basic drawing force of the auxiliary anchoring parts is 0.65kN which is larger than the standard requirement value, the suspension force is 0.1kN which is larger than the standard requirement value, in the construction and installation, the auxiliary anchoring parts have the advantages of small volume, convenient installation and strong bearing and suspension capacity and are supported at the bottom of the large-sized wall panel prepared by the invention, the adhesive plaster is detected by the national safety quality supervision and inspection center, and the obtained data are that the original tensile adhesive strength is 0.9MPa, the tensile adhesive strength after soaking in water is 0.7MPa, the tensile adhesive strength after thermal aging is 0.6MPa, the tensile adhesive strength after freeze-thaw cycle is 0.6MPa, the tensile adhesive strength after airing for 20min is 0.8MPa, and the tested tensile adhesive strength is greater than the technical requirement of the standard tensile adhesive strength;
step five, fixing the external wall panel:
after the lower large-sized external wall panel is attached and installed, an auxiliary anchoring piece is installed along the elastic line position above the lower large-sized external wall panel to fix the position of the large-sized external wall panel, and the large-sized external wall panel is installed upwards layer by layer;
step six, gap filling and trowelling treatment:
and (3) pressing joint filling mortar inwards from the joints of all the external wall panels to fill the joints of the external wall panels with the joint filling mortar, scraping and cleaning the redundant joint filling mortar and enabling the wall surface to be smooth and clean.
The large-size external wall panel prepared by the embodiment has the characteristics of balanced performance, good heat insulation performance, high drop-resistant rigidity strength and strong adhesion performance.
The properties of the prepared large-size external wall panelCan be detected by the national safety quality supervision and inspection center, the tensile bonding strength of the panel and the heat-insulating material is 0.16MPa, the tensile bonding strength is 0.18MPa, the tensile bonding strength is good, the single-point anchoring force is 0.81Kn, the support is firm and the installation is stable, and the thermal resistance reaches 1.56m 2 K/W, heat transfer coefficient 0.64W/m 2 K, good heat insulation performance, 10J-grade impact resistance, strong impact resistance and 264.2g/m water absorption capacity 2 Only the water absorption capacity of 500g/m is required by the standard 2 Half of the heat-insulating material, moisture-proof and water-proof, can better protect the wall from the harm of moisture, further improve the use safety factor of the building, the heat conductivity coefficient of the heat-insulating material is 0.023W/(m.K), the oxygen index (polyurethane plate) is 28.6 percent, the combustion growth rate is 8.1W/s and is far lower than 120W/s required by the standard, the total heat release of 600s is 0.2MJ and is far lower than 8.5MJ required by the standard, the combustion performance reaches the B level, the combustion-supporting performance is good, the safety is high, and the safety of the home life is ensured.
The large-size external wall panel prepared by the invention is far lighter in weight than the existing wall tiles with the same specification on the market, and has better heat insulation and energy saving effects, the thickness of the large-size external wall panel is only 1/3 of the thickness of the existing large-size panel which can achieve the heat insulation and preservation effects, the use space is greatly increased for a building using the large-size external wall panel, the purposes of energy saving, environmental protection and energy consumption reduction are achieved, and the requirements of green buildings are met.
According to the invention, the structure, the preparation process and the construction process of the large-size external wall panel are effectively combined to form an integral system, and the application of the whole system can achieve social benefits and social values and can replace the effects of rapid manufacturing, efficient construction, energy conservation and emission reduction which cannot be met and realized in the existing industry.
Compared with the existing products with the same specification, the large-specification external wall panel has the advantages that the large-specification external wall panel has large-specification sizes, high folding resistance and good compressive resistance, resists pressure and is not easy to break in production and construction through the transformation of equipment and the improvement of production procedures adopted by the preparation process, so that the generation loss rate is effectively reduced; moreover, compared with the traditional large-size dry wall-hung stone/brick which only plays a role in decoration, the wall-hung stone/brick has the advantages that the cost is reduced by at least 50-60%, the energy-saving efficiency of a building using the large-size external wall panel system can be improved by more than 50%, and the social value generated by the whole system is far and great, and has high industrial value.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (8)

1. The utility model provides a frivolous energy-conserving adnexed big specification side fascia that excels in, its characterized in that, the side fascia includes outer wall veneer panel layer, compound thermal-insulated heat preservation, fibre polymerization tie coat and gum paste agent layer, compound thermal-insulated heat preservation is mixed by trompil perlite granule, asbestos and two ingredient polyurethane foaming composition and is made, 6-12 parts of trompil perlite granule, 18-26 parts of asbestos, two ingredient polyurethane foaming composition include: polyurethane polyether polyol and isocyanate, wherein the weight part ratio of the polyurethane polyether polyol to the isocyanate is 1.4 to 1.8,
the polyurethane polyether polyol comprises 8-13 parts of polyether polyol, 30-48 parts of foamed polyurethane, 1-3 parts of latex powder, 2-4 parts of auxiliary foaming agent, 16-25 parts of diatomite, 1-4 parts of magnesium oxide, 0.6-1 part of cross-linking agent, 0.3-0.5 part of catalyst and 2-3.5 parts of foam stabilizer;
the isocyanate comprises 23-28 parts of isophorone diisocyanate, 16-19 parts of lysine diisocyanate, 10-12 parts of diphenylmethane diisocyanate, 1-2 parts of an anti-halogen agent and 5-8 parts of an inorganic binder;
the fiber polymerization bonding layer comprises quartz sand, composite viscose cement and glass fiber gridding cloth embedded in the composite viscose cement,
the back of the fiber polymer bonding layer is coated with a back adhesive layer.
2. The light, thin, energy-saving and strong-adhesion large-size external wall panel according to claim 1, wherein the external wall panel layer is a ceramic panel or a ceramic tile panel.
3. The light, thin, energy-saving and strong-adhesion large-size external wall panel according to claim 1, wherein the anti-halogen agent is oxalic acid, hydrochloric acid or sulfuric acid.
4. The lightweight, thin, energy-saving and strong-adhesion large-size external wall panel according to claim 1, wherein the grammage of the silica sand with the particle size of 0.1-0.8 and the glass fiber mesh fabric is 105-115 g/m.
5. The thin, energy-saving and strong-adhesion large-size external wall panel as claimed in claim 1, wherein the fiberglass mesh is provided with at least two layers.
6. The thin, energy-saving and strong-adhesion large-size external wall panel as claimed in claim 1, wherein the length and width of the thin, energy-saving and strong-adhesion large-size external wall panel is at least 1.2m x 1.6m, and the thickness of the thin, energy-saving and strong-adhesion large-size external wall panel is 20-50mm.
7. A preparation technology of a light, thin, energy-saving and strong-adhesion large-size external wall panel is characterized by comprising the following steps: the preparation method comprises the following preparation steps:
(1) Weighing the following raw materials:
weighing the raw materials according to 6-12 parts of open-cell perlite particles, 18-26 parts of asbestos, 8-13 parts of polyether polyol, 30-48 parts of foamed polyurethane, 1-3 parts of emulsion powder, 2-4 parts of auxiliary foaming agent, 16-25 parts of diatomite, 1-4 parts of magnesium oxide, 0.6-1 part of cross-linking agent, 0.3-0.5 part of catalyst, 2-3.5 parts of foam homogenizing agent, 23-28 parts of isophorone diisocyanate, 16-19 parts of lysine diisocyanate, 10-12 parts of diphenylmethane diisocyanate, 1-2 parts of halogen-resistant agent and 5-8 parts of inorganic binder for later use;
(2) Preparing a composite heat insulation layer:
the preparation method comprises the steps of respectively mixing the raw materials weighed according to the parts by weight according to a formula to obtain polyurethane polyether polyol and isocyanate, adding the polyurethane polyether polyol, the isocyanate, the open-cell perlite particles, the asbestos, the halogen-resistant agent and the inorganic binder into a mixing and stirring foaming machine according to the parts by weight, mixing and stirring uniformly at the stirring temperature of 50-70 ℃ for 16-20min, feeding the mixed mixture into the foaming machine for foaming for 13-20s, preparing for extrusion,
(3) And (3) composite pressing:
placing the bottom layer outer wall veneer layer on a conveying crawler belt and conveying the bottom layer outer wall veneer layer into an oven, heating the outer wall veneer layer, setting the temperature in the oven to be 40-70 ℃, continuously conveying the bottom layer outer wall veneer layer out after heating, when the outer wall veneer layer is conveyed to the lower part of a foaming extruder, transversely spraying the foaming extruder head along the outer wall veneer layer in a reciprocating manner, uniformly coating the foamed material of the composite heat insulation layer after foaming in the step 2 on the inner side surface of the outer wall veneer layer, conveying the composite heat insulation layer and the fiber polymerization bonding layer into a laminating crawler belt machine of a laminating pipeline together through the conveying crawler belt after the composite heat insulation layer is pre-coated, setting the fiber polymerization bonding layer on the upper surface of the composite heat insulation layer and the outer wall veneer layer to form a sandwich composite structure for clamping the composite heat insulation layer in the middle, firmly laminating the composite heat insulation layer and the fiber polymerization bonding layer through the laminating crawler belt machine, setting the curing temperature in the laminating crawler belt to be 40-70 ℃, and conveying the cured material of the outer wall veneer layer, and preparing the large-size light and energy-saving initial adhesion external wall veneer;
(4) And (3) drying:
sending the light, thin, energy-saving and strong-adhesion large-size external wall panel into a dryer for drying treatment, wherein the drying temperature is 160-180 ℃, and the drying time is 3-15 min;
(5) Trimming and removing excess materials:
sending the dried light, thin, energy-saving and strong-adhesion large-size external wall panel into a trimming machine, and taking out foaming excess materials of the composite heat-insulating layer extending out after the two sides of the panel are extruded by a trimming grinding wheel after the external wall panel is rightly positioned by a deviation correcting mechanism;
(6) Positioning and cutting:
and continuously conveying the trimmed plate to a cutting machine, cutting the plate into a plate with a preset length by a cutting knife wheel after the front end part of the plate is positioned, coating the back adhesive on the back surface of the plate to form a back adhesive layer, and finishing the preparation of the light, thin, energy-saving and strong-adhesion large-size external wall plate.
8. The construction process of the light, thin, energy-saving and strong-adhesion large-size external wall panel according to any one of claims 1 to 6, characterized by comprising the following steps:
step one, treating an outer wall surface base layer:
the wall surface is picked, chiseled and screeded, and the wall surface is cleaned;
step two, treating the external wall panel:
checking the color difference, the right angle and the warping degree of each external wall panel, selecting the external wall panels meeting the requirements, coating the back surfaces of the selected external wall panels with a back adhesive, and arranging for later use;
step three, positioning treatment of the outer wall surface:
measuring and leveling the wall surface to determine the brick arrangement position, and drilling a positioning hole by a spring line;
step four, laminating the external wall panel:
installing auxiliary anchoring parts layer by layer from bottom to top according to the area divided by the elastic line in the step two, uniformly coating adhesive plaster on the outer wall surface, sequentially embedding the large-size outer wall boards into the auxiliary anchoring parts layer by layer from bottom to top and pressing and adhering the large-size outer wall boards with the adhesive plaster;
step five, fixing the external wall panel:
after the lower layer of large-sized external wall panel is attached and installed, installing auxiliary anchoring parts along the elastic line position above the large-sized external wall panel to fix the position of the large-sized external wall panel, and installing the large-sized external wall panel layer by layer upwards;
step six, gap filling and trowelling treatment:
and (3) pressing joint filling mortar inwards from the joints of all the external wall panels to fill the joints of the external wall panels with the joint filling mortar, scraping and cleaning the redundant joint filling mortar and enabling the wall surface to be smooth and clean.
CN202110187772.0A 2021-02-18 2021-02-18 Preparation and construction process of light, thin, energy-saving and strong-adhesion large-size wall panel Active CN112982871B (en)

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