CN115434505A - Novel composite material building template for light cast-in-situ concrete - Google Patents
Novel composite material building template for light cast-in-situ concrete Download PDFInfo
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- CN115434505A CN115434505A CN202210973019.9A CN202210973019A CN115434505A CN 115434505 A CN115434505 A CN 115434505A CN 202210973019 A CN202210973019 A CN 202210973019A CN 115434505 A CN115434505 A CN 115434505A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G9/00—Forming or shuttering elements for general use
- E04G9/02—Forming boards or similar elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/40—Applying molten plastics, e.g. hot melt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
- B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/03—After-treatments in the joint area
- B29C66/032—Mechanical after-treatments
- B29C66/0324—Reforming or reshaping the joint, e.g. folding over
- B29C66/03241—Flattening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
- B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
- B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G9/00—Forming or shuttering elements for general use
- E04G9/10—Forming or shuttering elements for general use with additional peculiarities such as surface shaping, insulating or heating, permeability to water or air
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
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Abstract
The invention relates to the technical field of fluorine material coatings, in particular to a novel composite material building template for light cast-in-place concrete, which comprises a PVC foam board and upper and lower layers of aluminum alloy panels, wherein the aluminum alloy panels are laminated on the upper and lower layers of the PVC foam board, and the manufacturing steps are as follows: step 1: mixing the materials and then putting the mixture into an extruder for extrusion; step 2: placing the extruded material in a mould for high-temperature shaping to obtain a PVC foaming plate; and step 3: respectively pressing an upper layer of aluminum alloy panel and a lower layer of aluminum alloy panel on the upper surface and the lower surface of the PVC foaming plate; and 4, step 4: carrying out heat seal leveling process on the composite building template; and 5: carrying out a cooling and shaping process on the leveled composite building template; and 6: and cutting the cooled and shaped composite material building template according to the specification to form the composite material building template. The invention fundamentally solves the problems that the middle PVC foaming template has poor high temperature resistance and is easy to deform when being heated.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a novel composite material building template for light cast-in-place concrete.
Background
Data statistics shows that wood used by the wood-cement mold closing plate is very serious in the current building construction, the average turnover frequency of the wood-cement mold closing plate is 3-8 times, and the wood-cement mold closing plate cannot be recycled after use. Therefore, the building department has advocated the building template to save materials and replace wood, and the popularization of replacing wood by plastic, so that various novel building plastic templates come into force. Because the plastic building templates in the current market do not fundamentally solve the technical problems that the plastic templates are easy to deform and crack due to cooling and have insufficient static bending strength and elastic modulus, although the product quality of the plastic building templates is continuously improved, the plastic building templates in the building market have severe requirements on construction process and application environment, the popularization of the plastic building templates is slow, and the plastic building templates cannot be used on a large scale at present. By 2017, the wood glued formwork still accounts for 85% of the market share.
The current PVC foaming building templates comprise two types of products, namely skinning foaming building templates and co-extrusion foaming building templates. The static bending strength and the elastic modulus of the two types of building templates are compared with those of wood veneers in actual use, the difference is more than one time when the same thickness of 15mm is taken as an example,
the PVC building template has a large difference from a wood veneer in mechanical property.
The density of the back-ridge battens can be increased only to make up the deficiency in construction, so that the labor cost and the batten cost are increased, the advantages of the PVC building template are diluted, and the PVC building template cannot be popularized and used in a large quantity. Meanwhile, the existing PVC template has more problems:
1. the wood template and the plastic plane template use more battens, which causes higher material cost and labor cost. 2. The ribbed plastic formwork is heavy in weight, which causes high labor cost. 3. The similar PVC plate is used as a building template of secondary structure light cast-in-place concrete. In the using process, the test of all weather such as wind blowing, sun drying, spring, summer, autumn and winter is needed. The PVC foaming board produced by the original formula has serious and insufficient high-temperature resistance. At temperatures above 65 ℃ softening begins and after softening the strength decreases. The heat is discharged when the cement concrete is formed, the surface temperature of the cement concrete can reach 75 ℃ at most, and therefore serious deflection exceeding is possible at high temperature. In addition, the phenomenon of plate warping and deformation can also occur when the wind blows and is exposed to the sun.
Disclosure of Invention
The invention aims to provide a novel composite material building template for lightweight cast-in-place concrete.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a novel combined material building templates for light cast-in-place concrete, including 1.PVC foaming board, upper and lower two-layer aluminum alloy panel, PVC foaming board upper and lower surface pressfitting has aluminum alloy panel, and this novel combined material building templates for light cast-in-place concrete's preparation step is as follows:
step 1: mixing the materials and then placing the mixture in an extruder for extrusion;
and 2, step: placing the extruded material in a mould for high-temperature shaping to obtain a PVC foaming plate;
and 3, step 3: respectively pressing an upper layer of aluminum alloy panel and a lower layer of aluminum alloy panel on the upper surface and the lower surface of the PVC foaming board to form a composite material building template;
and 4, step 4: carrying out heat seal leveling process on the composite building template;
and 5: carrying out a cooling and shaping process on the leveled composite building template;
step 6: and cutting the cooled and shaped composite material building template according to the specification to form the composite material building template.
Further, the materials in the first step comprise PVC, an auxiliary agent, calcium powder, a foaming regulator, a foaming agent, a stabilizer and a lubricant.
Further, the temperature for high-temperature shaping in the second step is 165-175 ℃.
Furthermore, the width of the novel composite material building template for the lightweight cast-in-place concrete is 1000mm; the thickness is 17mm.
Furthermore, in the third step, an upper layer of hot melt adhesive film and a lower layer of hot melt adhesive film are respectively pressed into the upper surface and the lower surface of the PVC foaming plate.
Further, the heat seal leveling process is to place the composite building template in a heat insulation box and level the surface of the composite building template through an upper roller and a lower roller; the temperature of the heat preservation box is set to be 150-160 ℃.
A preparation device is used for completing the preparation process of the composite material building template, and comprises a PVC foaming plate forming module, a pressing module, a heat seal leveling module, a cooling shaping module and a traction module;
the pressing module comprises an upper hot melt adhesive film guide roller, a lower hot melt adhesive film guide roller, an upper hot melt adhesive film press-in roller, a lower hot melt adhesive film press-in roller, an upper aluminum alloy panel guide roller, a lower aluminum alloy panel guide roller, an upper aluminum alloy panel press-in roller, a lower aluminum alloy panel press-in roller, an upper hot melt adhesive film roll roller, a lower hot melt adhesive film roll roller, an upper aluminum alloy panel roll roller and a lower aluminum alloy panel roll roller;
the upper hot melt adhesive film guide roller and the lower hot melt adhesive film guide roller are arranged oppositely to form a first group of rollers;
the upper hot melt adhesive film press-in roller and the lower hot melt adhesive film press-in roller are oppositely arranged to form a second group of rollers;
the upper aluminum alloy panel guide-in roller and the lower aluminum alloy panel guide-in roller are oppositely arranged to form a third group of rollers;
the upper aluminum alloy panel press-in roller and the lower aluminum alloy panel press-in roller are oppositely arranged to form a fourth group of rollers;
the four groups of rollers are arranged horizontally in the sequence of the first group of rollers, the second group of rollers, the third group of rollers and the fourth group of rollers;
an upper hot melt adhesive film is preset on the upper hot melt adhesive film winding roller; the end of the upper hot melt adhesive film is connected with the upper hot melt adhesive film guide-in roller;
a lower hot melt adhesive film is preset on the lower hot melt adhesive film roll; the end of the lower hot melt adhesive film is connected with the lower hot melt adhesive film guide roller;
a lower aluminum alloy panel is preset on the lower aluminum alloy panel winding roller, and the end of the lower aluminum alloy panel is connected with the lower aluminum alloy panel guide-in roller;
an upper aluminum alloy panel is preset on the upper aluminum alloy panel winding roller, and the end of the upper aluminum alloy panel is connected with the upper aluminum alloy panel guide-in roller;
the discharge hole of the composite building template forming module and the feed hole of the first group of rollers in the pressing module are arranged in an equal horizontal manner; the discharge hole of the fourth group of rollers in the pressing module and the feed hole of the heat seal leveling module are arranged in an equal horizontal manner; the discharge hole of the heat seal leveling module and the feed inlet of the cooling shaping module are arranged in an equal horizontal manner; the discharge hole of the cooling and shaping module and the feed inlet of the traction module are arranged in the same horizontal direction
Further, the composite building template comprises a mixer, a double-helix extruder and a die; the discharge hole of the mixer is communicated with the feed inlet of the double-screw extruder; the discharge hole of the double-screw extruder is communicated with the discharge hole of the die; the discharge gate of mould with the equal level setting of feed inlet of first group roller.
Further, the heat seal leveling module comprises an incubator; four groups of compression rollers which are arranged in the same horizontal direction are arranged in the heat preservation box; each group of press rolls are two rolls which are oppositely arranged up and down.
Further, the cooling and shaping module is a cooling water channel; the traction modules are six groups of traction rollers which are arranged in the same horizontal direction.
The invention has the beneficial effects that:
the invention directly coats the aluminum alloy plate in the production of the PVC foaming plate. Therefore, the mechanical property of the novel composite material building template for the light cast-in-place concrete is greatly improved, and the static bending strength and the static bending elastic modulus of the novel composite material building template for the light cast-in-place concrete can be improved; therefore, when the template of the light cast-in-place concrete is used, the back-arris batten is removed. Thereby greatly improving the construction efficiency.
Compared with the traditional wood-cement building template, the novel composite building template for the lightweight cast-in-place concrete has the following advantages:
1. the weather resistance is strong: corrosion resistance, acid and alkali resistance, humidity resistance, no fungus growth, insect and pest resistance, is suitable for various construction operation environments, and is particularly suitable for underground and humid environments.
2. And (3) environmental protection: no pollution, no public nuisance and no formaldehyde.
3. Energy-saving recovery: the leftover materials and the worn-out templates can be recycled.
4. High water resistance: waterproof, do not absorb water, can soak the appearance size in water basically unchanged throughout the year.
5. The use is convenient: can be nailed, drilled, planed and customized according to the construction drawing.
6. The process is simplified: the surface is smooth and tidy, the demoulding agent is not brushed, the demoulding effect is good, and the standard of the clear water concrete can be reached.
7. The maintenance cost is low: strong toughness, impact resistance, no cracking, no expansion and no deformation, and almost no maintenance and repair cost.
8. The turnover number is high: the turnover frequency is more than 100 times of that of the wood plywood.
Meanwhile, the preparation of the novel composite material building template for the lightweight cast-in-place concrete is strict in process, the requirement on temperature error of a control flow is high, and the phenomena of poor heat seal and delamination caused by overhigh or overlow temperature are avoided.
The preparation device realizes the automatic production of a novel composite material building template assembly line for the light cast-in-place concrete, and realizes the five-layer lamination of the novel composite material building template for the light cast-in-place concrete, thereby realizing the industrial large-scale production of the novel composite material building template for the light cast-in-place concrete.
Drawings
FIG. 1 is a schematic view of a manufacturing apparatus according to the present invention.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
The drawings are for illustrative purposes only and are not intended to be limiting of the present patent.
The novel composite material building template for the lightweight cast-in-place concrete comprises a PVC foam board, a hot melt adhesive film and an aluminum alloy panel, wherein the hot melt adhesive film is pressed on the upper surface and the lower surface of the PVC foam board; the outer surface is wrapped with an aluminum alloy panel, wherein the surface is coated with the aluminum alloy panel when the PVC foaming plate is extruded. Therefore, the mechanical property of the novel composite material building template for the light cast-in-place concrete is greatly improved, and the static bending strength of the novel composite material building template for the light cast-in-place concrete is improved to be more than 55MPa, and the elastic modulus of the novel composite material building template for the light cast-in-place concrete is improved to be more than 7500MPa; therefore, when the template of the light cast-in-place concrete is used, the back-arris batten is removed. Thereby greatly improving the construction efficiency.
The invention also provides a preparation process of the novel composite material building template for the lightweight cast-in-place concrete, which comprises the following steps:
step 1: mixing the materials and then putting the mixture into an extruder 2 for extrusion;
and 2, step: placing the extruded material in a mold 3 for high-temperature shaping to obtain a PVC foam board;
and step 3: respectively pressing the two layers of hot melt adhesive films into the upper surface and the lower surface of the PVC foaming plate;
and 4, step 4: respectively pressing two layers of aluminum alloy panels on the upper and lower surfaces of the PVC foaming plate to form a novel composite material building template for light cast-in-place concrete;
and 5: carrying out heat seal leveling process on the novel composite material building template for the light cast-in-place concrete;
step 6: carrying out a cooling and shaping process on the leveled lightweight cast-in-place concrete by using a novel composite material building template;
and 7: and cutting the cooled and shaped novel composite material building template for the light cast-in-place concrete according to the specification to form the novel composite material building template for the light cast-in-place concrete.
In this embodiment, in step 1, the materials include PVC, additives, calcium powder, foaming regulator, foaming agent, stabilizer and lubricant.
In the embodiment, in the step 2, the temperature of high-temperature shaping is 165-175 ℃; the width of the PVC foaming plate is 1000mm; the thickness is 17mm; the novel composite material building template for the light cast-in-place concrete has strict preparation process and high requirement on temperature error of a control flow, and avoids poor heat seal and layering caused by overhigh or overlow temperature.
In this embodiment, in step 3, two layers of hot melt adhesive films are respectively pressed into the upper and lower surfaces of the PVC foam board, and then two layers of aluminum alloy panels are applied to the outer layers of the hot melt adhesive films until the surfaces of the aluminum alloy panels and the surfaces of the PVC foam board are on the same horizontal plane.
In this embodiment, in step 5, the heat seal leveling process is to place the novel composite building template for light cast-in-place concrete in the insulation can 16, and level the surface of the novel composite building template for light cast-in-place concrete through the rollers arranged up and down; the temperature of the incubator 16 is 150 ℃ to 160 ℃.
The integrally manufactured template has high performance, and meanwhile, the template is prepared better;
the invention also provides a preparation device, which comprises a PVC foam board forming module, a pressing module, a heat seal leveling module, a cooling shaping module and a traction module;
the pressing module comprises an upper hot melt adhesive film guide roller 4, a lower hot melt adhesive film guide roller 5, an upper hot melt adhesive film press-in roller 6, a lower hot melt adhesive film press-in roller 7, an upper aluminum alloy panel guide roller 8, a lower aluminum alloy panel guide roller 9, an upper aluminum alloy panel press-in roller 10, a lower aluminum alloy panel press-in roller 11, an upper hot melt adhesive film winding roller 12, a lower hot melt adhesive film winding roller 13, an upper aluminum alloy panel winding roller 14 and a lower aluminum alloy panel winding roller 15;
the upper hot melt adhesive film guide roller 4 and the lower hot melt adhesive film guide roller 5 are arranged oppositely to form a first group of rollers;
the upper hot melt adhesive film press-in roller 6 and the lower hot melt adhesive film press-in roller 7 are oppositely arranged to form a second group of rollers;
the upper aluminum alloy panel guide-in roller 8 and the lower aluminum alloy panel guide-in roller 9 are oppositely arranged to form a third group of rollers;
the upper aluminum alloy panel press-in roller 10 and the lower aluminum alloy panel press-in roller 11 are oppositely arranged to form a fourth group of rollers;
the four groups of rollers are horizontally arranged in the sequence of the first group of rollers, the second group of rollers, the third group of rollers and the fourth group of rollers;
an upper hot melt adhesive film is preset on the upper hot melt adhesive film roll 12; the end of the upper hot melt adhesive film is connected with an upper hot melt adhesive film guide-in roller 4;
a lower hot melt adhesive film is preset on the lower hot melt adhesive film roll 13; the end of the lower hot melt adhesive film is connected with a lower hot melt adhesive film guide roller 5;
a lower aluminum alloy panel is preset on the lower aluminum alloy panel winding roller 15, and the end of the lower aluminum alloy panel is connected with the lower aluminum alloy panel lead-in roller 9;
an upper aluminum alloy panel is preset on the upper aluminum alloy panel winding roller 14, and the end of the upper aluminum alloy panel is connected with the upper aluminum alloy panel guide-in roller 8;
the discharge hole of the PVC foam board forming module and the feed inlet of the first group of rollers in the pressing module are arranged in an equal level; the discharge hole of the fourth group of rollers in the pressing module and the feed hole of the heat seal leveling module are arranged in an equal level; the discharge hole of the heat seal leveling module and the feed inlet of the cooling shaping module are arranged in an equal level; the discharge hole of the cooling and shaping module and the feed inlet of the traction module are arranged in the same horizontal direction.
In the embodiment, the novel composite material building template forming module for the lightweight cast-in-place concrete comprises a mixer 1, a double-screw extruder 2 and a mould 3; the discharge hole of the mixer 1 is communicated with the feed inlet of the double-screw extruder 2; the discharge port of the double-screw extruder 2 is communicated with the discharge port of the die 3; the discharge hole of the die 3 and the feed inlet of the first group of rollers are arranged in an equal level mode.
In this embodiment, the heat seal leveling module includes an incubator 16; four groups of compression rollers 17 which are arranged in the same horizontal direction are arranged in the heat preservation box 16; each set of the press rolls 17 is two rolls disposed opposite to each other.
In the present embodiment, the cooling and shaping module is a cooling water channel 18; the drawing module is six groups of drawing rollers 19 which are arranged horizontally.
In this embodiment, the proportioned materials are placed in a mixer 1 for mixing, and then fed into a double-screw extruder 2 for high-temperature and high-pressure extrusion, and then fed into a die 3 for shaping into a PVC foam board, which is the prior art and is not described herein again.
The PVC foaming board is transmitted between an upper hot melt adhesive film guide roller 4 and a lower hot melt adhesive film guide roller 5, so that the upper hot melt adhesive film and the lower hot melt adhesive film are pressed into the upper surface and the lower surface of the PVC foaming board; then, the upper hot melt adhesive film and the lower hot melt adhesive film are pressed between an upper hot melt adhesive film press-in roller 6 and a lower hot melt adhesive film press-in roller 7 until the surfaces of the upper hot melt adhesive film and the lower hot melt adhesive film are flush with the surface of the PVC foaming plate, then the upper hot melt adhesive film and the lower hot melt adhesive film are transmitted between an upper aluminum alloy panel lead-in roller 8 and a lower aluminum alloy panel lead-in roller 9, and finally the upper hot melt adhesive film and the lower hot melt adhesive film enter a space between an upper aluminum alloy panel press-in roller 10 and a lower aluminum alloy panel press-in roller 11, so that the aluminum alloy panel is pressed on the surface of the PVC foaming plate, and the preparation of the novel composite material building template for the light cast-in-place concrete is realized; meanwhile, the upper hot melt adhesive film winding roller 12, the lower hot melt adhesive film winding roller 13, the upper aluminum alloy panel winding roller 14 and the lower aluminum alloy panel winding roller 15 are used for conveying the hot melt adhesive films and the aluminum alloy panels for the corresponding rollers, and each winding roller is provided with two rollers, so that the sufficiency of the hot melt adhesive films and the aluminum alloy panels is ensured.
The novel composite material building template for the light cast-in-place concrete is conveyed into an insulation box 16, the upper surface and the lower surface of the novel composite material building template for the light cast-in-place concrete are flattened through four groups of compression rollers 17 which are arranged in the same horizontal direction in the environment of 150-160 ℃, the flattened upper surface and the flattened lower surface enter a cooling water channel 18 for shaping, finally the upper surface and the flattened lower surface are drawn to a cutting area through six groups of traction rollers 19 which are arranged in the same horizontal direction, a cutting process is carried out according to the size of the required novel composite material building template for the light cast-in-place concrete, and the preparation is completed.
In this embodiment, the distance between the oppositely disposed rollers is designed according to the thickness of the actually required novel composite material building template for lightweight cast-in-place concrete; each roller is driven by a servo motor.
The foregoing is merely illustrative and explanatory of the present invention and various modifications, additions or substitutions may be made to the specific embodiments described by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
1. Novel combined material building templates is used to light cast-in-place concrete, its characterized in that, including PVC foaming board, upper and lower two-layer aluminum alloy panel, PVC foaming board upper and lower surface pressfitting has aluminum alloy panel, and this novel combined material building templates for light cast-in-place concrete's preparation step as follows:
step 1: mixing the materials and then placing the mixture in an extruder for extrusion;
step 2: placing the extruded material in a mould for high-temperature shaping to obtain a PVC foaming plate;
and step 3: respectively pressing an upper layer of aluminum alloy panel and a lower layer of aluminum alloy panel on the upper surface and the lower surface of the PVC foaming board to form a composite material building template;
and 4, step 4: carrying out heat seal leveling process on the composite building template;
and 5: carrying out a cooling and shaping process on the leveled composite building template;
step 6: and cutting the cooled and shaped composite material building template according to the specification to form the composite material building template.
2. The novel composite material building template for lightweight cast-in-place concrete according to claim 1, wherein the materials in the first step comprise PVC, auxiliaries, calcium powder, a foaming regulator, a foaming agent, a stabilizer and a lubricant.
3. The novel composite building template for lightweight cast-in-place concrete according to claim 1, wherein the temperature for high-temperature setting in the second step is 165-175 ℃.
4. The novel composite building template for lightweight cast-in-place concrete according to claim 1, wherein the novel composite building template for lightweight cast-in-place concrete has a width of 1000mm; the thickness is 17mm.
5. The novel composite material building template for lightweight cast-in-place concrete according to claim 4, wherein in the third step, an upper layer of hot melt adhesive film and a lower layer of hot melt adhesive film are respectively pressed into the upper surface and the lower surface of the PVC foam board.
6. The novel composite building template for lightweight cast-in-place concrete according to claim 1, wherein the heat seal leveling process comprises the steps of placing the composite building template in an incubator, and leveling the surface of the composite building template through upper and lower rollers; the temperature of the heat preservation box is set to be 150-160 ℃.
7. A preparation device is used for completing the preparation process of the novel composite material building template for the lightweight cast-in-place concrete according to any one of claims 2 to 6, and is characterized by comprising a PVC foam board forming module, a pressing module, a heat-seal leveling module, a cooling shaping module and a traction module;
the pressing module comprises an upper hot melt adhesive film guide roller, a lower hot melt adhesive film guide roller, an upper hot melt adhesive film press-in roller, a lower hot melt adhesive film press-in roller, an upper aluminum alloy panel guide roller, a lower aluminum alloy panel guide roller, an upper aluminum alloy panel press-in roller, a lower aluminum alloy panel press-in roller, an upper hot melt adhesive film roll roller, a lower hot melt adhesive film roll roller, an upper aluminum alloy panel roll roller and a lower aluminum alloy panel roll roller;
the upper hot melt adhesive film guide roller and the lower hot melt adhesive film guide roller are arranged oppositely to form a first group of rollers;
the upper hot melt adhesive film press-in roller and the lower hot melt adhesive film press-in roller are oppositely arranged to form a second group of rollers;
the upper aluminum alloy panel guide-in roller and the lower aluminum alloy panel guide-in roller are oppositely arranged to form a third group of rollers;
the upper aluminum alloy panel press-in roller and the lower aluminum alloy panel press-in roller are oppositely arranged to form a fourth group of rollers;
the four groups of rollers are arranged horizontally in the sequence of the first group of rollers, the second group of rollers, the third group of rollers and the fourth group of rollers;
an upper hot melt adhesive film is preset on the upper hot melt adhesive film winding roller; the end of the upper hot melt adhesive film is connected with the upper hot melt adhesive film guide-in roller;
a lower hot melt adhesive film is preset on the lower hot melt adhesive film roll; the end of the lower hot melt adhesive film is connected with the lower hot melt adhesive film guide roller;
a lower aluminum alloy panel is preset on the lower aluminum alloy panel winding roller, and the end of the lower aluminum alloy panel is connected with the lower aluminum alloy panel guide-in roller;
an upper aluminum alloy panel is preset on the upper aluminum alloy panel winding roller, and the end of the upper aluminum alloy panel is connected with the upper aluminum alloy panel guide-in roller;
the discharge hole of the composite building template forming module and the feed hole of the first group of rollers in the pressing module are arranged in an equal level; the discharge hole of the fourth group of rollers in the pressing module and the feed hole of the heat seal leveling module are arranged in an equal level; the discharge hole of the heat seal leveling module and the feed hole of the cooling shaping module are arranged in an equal level; and the discharge hole of the cooling and shaping module and the feed hole of the traction module are arranged in the same horizontal direction.
8. The apparatus of claim 7, wherein the composite building template comprises a compounder, a twin screw extruder, and a die; the discharge hole of the mixer is communicated with the feed inlet of the double-screw extruder; the discharge hole of the double-screw extruder is communicated with the discharge hole of the die; the discharge hole of the die and the feed inlet of the first group of rollers are arranged in an equal level mode.
9. The apparatus of claim 7, wherein the heat sealing and flattening module comprises an incubator; four groups of compression rollers which are arranged in the same horizontal direction are arranged in the heat insulation box; each group of press rolls are two rolls which are oppositely arranged up and down.
10. The apparatus of claim 7, wherein the cooling and shaping module is a cooling water channel; the traction module is six groups of traction rollers which are arranged horizontally.
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| CN202210973019.9A CN115434505A (en) | 2022-08-15 | 2022-08-15 | Novel composite material building template for light cast-in-situ concrete |
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| CN202210973019.9A CN115434505A (en) | 2022-08-15 | 2022-08-15 | Novel composite material building template for light cast-in-situ concrete |
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| WO1990001602A1 (en) * | 1988-07-29 | 1990-02-22 | Werner Fehr | Formwork with plastic forming board and process for making it |
| CN103694605A (en) * | 2014-01-17 | 2014-04-02 | 江西省建筑材料工业科学研究设计院 | PVC (polyvinyl chloride) foaming aluminum-plastic building template |
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