CN115680189A - Manufacturing method of light steel keel prefabricated composite insulation board and wall building method - Google Patents
Manufacturing method of light steel keel prefabricated composite insulation board and wall building method Download PDFInfo
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Abstract
The invention provides a manufacturing method of a light steel keel prefabricated composite insulation board and a wall body building method, relating to the technical field of insulation building materials and adopting the following scheme: the light steel keel prefabricated composite heat insulation board is manufactured by welding a keel framework, flatly placing a fireproof board on the keel framework, connecting the fireproof board and the keel framework by a connecting piece, coating or scraping polymer bonding mortar on the outer side of the fireproof board to form a bonding layer, and adhering a heat insulation layer on the outer side of the bonding layer. The wall construction method comprises the steps of drawing a light steel keel prefabricated composite insulation board row board drawing, installing connecting keels and then installing the light steel keel prefabricated composite insulation board. The invention solves the problems of obvious thermal defects and complicated field construction procedures of the light steel keel composite wall board in the prior art.
Description
Technical Field
The invention relates to the technical field of heat-insulating building materials, in particular to a manufacturing method of a light steel keel prefabricated composite heat-insulating plate and a wall body building method.
Background
The light steel keel composite wallboard is a composite wallboard which takes a cold-formed thin-wall steel keel as a stressed framework, covers panels on two sides and is filled with heat insulation materials in the middle. The stressed skeleton of the wall board is mainly C-shaped or U-shaped keel, the heat-insulating core board can be made of inorganic heat-insulating mortar board, polystyrene foam heat-insulating board, foam concrete board and other materials, the inner face board is mainly made of paper-faced gypsum board, fiber-reinforced calcium silicate board or oriented strand board, and the outer face board is mainly made of fiber-reinforced cement board or fiber-reinforced calcium silicate board. However, the wallboard has the following technical problems:
1. the light steel keel composite wallboard has obvious thermal defects. The panel of the light steel keel composite wallboard is mostly hung on the keel through self-tapping screws, and the self-tapping screws and the keel are both made of metal materials, so that a through thermal bridge is easily formed; in addition, a core layer formed by the keels and the heat-insulating materials filled in the middle is non-homogeneous, so that the temperature field on the inner surface of the wallboard is not uniformly distributed, the heat flow density at the keels is large, the heat bridge effect is obvious, and the energy-saving design requirement of the outer wall of a cold and severe cold area is difficult to meet.
2. The light steel keel composite wallboard has complicated field procedures. The construction of the light steel keel composite wallboard mostly adopts a field assembly mode, namely, each component is customized in a factory according to the division of the outer wall units and the design size of the wallboard, and the outer panel, the heat insulation core board and the inner panel are sequentially fixed after the keel is assembled on the field. The wallboard is violently erected the fossil fragments concatenation, and interior outer panel is fixed, and the heat preservation core is filled all to be accomplished at the building site, and the site work is many, the work load is big, the construction is complicated, leads to that the construction period is long, the overall cost is higher, is difficult to satisfy the requirement of assembled building outer wall parts batch production, assembly construction.
Disclosure of Invention
On one hand, the invention provides and designs a manufacturing method of a light steel keel prefabricated composite insulation board aiming at the problems of obvious thermal defects and complicated field construction procedures of light steel keel composite wall boards in the prior art. The adopted technical scheme is as follows: a manufacturing method of a light steel keel prefabricated composite insulation board mainly comprises the following steps:
a1, welding a keel framework by adopting a welding robot in a factory;
a2, the fireproof plate is horizontally placed on the keel framework, the fireproof plate is connected with the keel framework through a first connecting piece, and an interface processing layer is formed by painting or spraying a special interface agent for the fireproof plate on the outer side plate surface of the fireproof plate; the first connecting piece is preferably a self-tapping nail, the fireproof plate is flatly paved on the outer side surface of the keel framework and fixed by the self-tapping nail, a base layer of the whole light steel keel prefabricated composite heat-insulation plate is formed, fillers such as heat-insulation materials do not need to be filled in the keel framework, layering is clear, the keel framework is provided with a larger space, and wiring, installation and connection and other operations are facilitated.
A3, after the interface treatment layer is dried, coating or scraping polymer bonding mortar on the interface treatment layer to form a bonding layer;
a4, adhering the heat insulation plate to the outer side of the bonding layer to form a heat insulation layer;
a5, directly pouring the heat-preservation slurry on the outer side surface of the adhered heat-preservation layer to form a protection layer, wherein a layer of glass fiber net is pressed into the outer surface of the heat-preservation slurry protection layer by using a roller to play a role in enhancing crack resistance;
and A6, after the protective layer is dried, mechanically anchoring by using a heat-insulating self-tapping screw, wherein the heat-insulating self-tapping screw penetrates through the protective layer and the heat-insulating layer and then is anchored on the fireproof plate.
In this scheme, the welding robot welding is adopted at the mill to light gauge steel composite insulation board fossil fragments skeleton, and the PLASTIC LAMINATED adopts the professional equipment nail to spread to compound heat preservation and inoxidizing coating on the production line, production efficiency is high, and product quality easily controls, has solved traditional light gauge steel composite wall panel field work process many, and the problem that the work load is big has satisfied the requirement of assembled building outer wall parts batch production.
In this scheme, with the prefabricated composite insulation board of light gauge steel of this method manufacturing, in the manufacturing process, use the fossil fragments skeleton of laying the PLASTIC LAMINATED as the basic unit, can bear composite insulation board's dead weight and act on wind load and earthquake load on it, the PLASTIC LAMINATED is located the outside of fossil fragments skeleton, then set up the heat preservation outside the PLASTIC LAMINATED again, the heat preservation is the homogeneity, can make the prefabricated composite insulation board internal surface temperature field evenly distributed of light gauge steel, in order to satisfy the thermotechnical design requirement of wallboard, and the non-prior art in the skeleton fill insulation material's the configuration mode. Be connected through the tapping screw between PLASTIC LAMINATED and the fossil fragments skeleton, be fixed in the fossil fragments skeleton with the PLASTIC LAMINATED is firm, the tapping screw is located the inboard of heat preservation, be connected with heat preservation tapping screw between heat preservation and the PLASTIC LAMINATED, with the further security of being connected between heat preservation and the PLASTIC LAMINATED of strengthening, heat preservation tapping screw and tapping screw stagger arrangement, this kind of arrangement can not make the metal nail body link up whole light gauge steel prefabricated composite insulation board, the production of connectivity thermal bridge has been avoided, and each structural layer connects safe and reliable.
Furthermore, the keel framework is made of cold-formed thin-wall section steel or square tubes, so that the strength is ensured, the weight is reduced, and the outer peripheral surface of the keel framework is smooth.
Furthermore, the special interface agent of flame retardant board is brushed or blade-coated to the outside face of flame retardant board and an interface treatment layer is formed, the interface treatment layer and the bonding layer are bonded and compounded together, the bonding is firm, the thickness of the bonding layer is 2mm to 10mm, the heat preservation layer is bonded through the bonding layer, the heat preservation layer is firmly bonded to the surface, and the cavity and the delamination are avoided.
Furthermore, the fireproof plate is any one of a paper-faced gypsum board, a fiber reinforced calcium silicate board or a fiber reinforced cement board, and is connected with the light steel keel framework through a self-tapping screw. The thickness of the fireproof plate is 8mm to 25mm.
Further, the heat insulation layer is any one of a polystyrene board, a polyurethane board or a phenolic aldehyde board, and the thickness of the heat insulation layer is determined by calculation according to energy-saving design requirements.
Further, the protective layer is a protective layer made of adhesive polystyrene granule heat-insulating slurry or vitrified micro-bead heat-insulating slurry, the combustion performance grade of the slurry is not lower than A2 grade, the protective layer is poured on the upper surface of the heat-insulating layer, and alkali-resistant glass fiber mesh cloth is pressed in. The thickness of the protective layer is 20mm to 50mm.
Furthermore, the heat-insulating self-tapping screw comprises a plastic connecting pipe with a disc at the tail end and a self-tapping screw, the self-tapping screw is inserted into the plastic connecting pipe, and the heat-insulating layer and the fireproof plate are mechanically anchored together through the heat-insulating self-tapping screw.
On the other hand, the invention also provides a wall body construction method, which mainly comprises the following steps:
s1, drawing a light steel keel prefabricated composite insulation board row board diagram
Drawing a light steel keel prefabricated composite insulation board arrangement diagram for steel structure beam column heat bridge treatment, and determining the specifications, the number and the positions of the light steel keel prefabricated composite insulation boards and connecting keels;
s2, installing and connecting keel
According to a light steel keel prefabricated composite insulation board layout drawing, popping up an installation control line on a main structure, horizontally welding and connecting keels on steel frame columns, and vertically welding and connecting keels on steel frame beams; the vertical welding fixed connection fossil fragments on frame steel column upper level welded fixed connection fossil fragments, the frame girder steel can guarantee that the mounted position of composite insulation side fascia is accurate and can not adorn partially, and the alignment position increases fossil fragments skeleton contact surface and firm in connection simultaneously.
S3, installing light steel keel prefabricated composite heat insulation board
According to the control line which is bounced, the light steel keel prefabricated composite heat-insulation board is connected with a connecting keel welded on a steel frame beam and a steel frame column through a connecting piece, so that the light steel keel prefabricated composite heat-insulation board is installed; the connecting piece adopts an L-shaped connecting piece and a screw, one side of the connecting piece is connected with the keel framework through the screw, and the other side of the connecting piece is connected with the connecting keel through the screw.
The prefabricated composite heat-insulation board of the light steel keel is processed and manufactured in a factory according to a plate arrangement diagram, is connected with the connecting keels welded on the steel frame columns and the steel frame beams through the connecting pieces on site, is simple and convenient to operate and high in installation speed, and solves the problems of multiple site processes, complex construction, long construction period, high cost and low assembly construction degree of the traditional method.
According to the technical scheme, the invention has the following advantages:
1. the organic heat-insulation board is compounded on the keel framework base layer of the nail-paved fireproof board, so that the thermal performance of the wallboard is improved, the thermal defects of the traditional light steel keel composite wallboard are overcome, and the fireproof problem of the organic heat-insulation material is solved through the A-level heat-insulation slurry poured on the surface of the heat-insulation layer.
2. The light gauge steel prefabricated composite insulation board adopts no cavity structure between each structural layer, and at PLASTIC LAMINATED surface spraying interfacial agent, improved the bond strength of organic insulation board with the PLASTIC LAMINATED to through addding the supplementary mechanical fastening of heat preservation tapping screw, guaranteed the security of connection between each structural layer, solved the heated board problem of droing.
3. The prefabricated composite insulation board keel framework of the light steel keel is welded by adopting special equipment in a factory, the fireproof board is nailed and paved by adopting the special equipment, and the heat preservation layer and the protective layer are sequentially compounded on a production line, so that the production efficiency is high, the product quality is easy to control, the problems of multiple field processes and large workload of the traditional light steel keel composite wallboard are solved, and the requirement of factory production of external wall parts of an assembly type building is met.
4. The prefabricated composite heat-insulation board of the light steel keel is processed and manufactured in a factory according to a plate layout, is connected with the connecting keels welded on the steel frame columns and the steel frame beams through the connecting pieces on site, is simple and convenient to operate and high in installation speed, and solves the problems that the traditional method is multiple in site processes, complex in construction, long in construction period, high in cost and low in assembly construction degree.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required to be used in the description will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a product manufactured in embodiment 1 of the present invention.
Fig. 2 isbase:Sub>A schematic view of the cross-sectional structurebase:Sub>A-base:Sub>A in fig. 1.
FIG. 3 is a schematic view of a cross-sectional view B-B of FIG. 1.
Fig. 4 is a schematic view of a product structure layer manufactured according to embodiment 1 of the present invention.
Fig. 5 is a schematic structural diagram of a product constructed in embodiment 2 of the present invention.
In the figure, 1, a keel framework, 11, a main rib, 12, an end rib, 13, a horizontal reinforcing rib, 14, a vertical reinforcing rib, 2, a fireproof plate, 3, an interface treatment layer, 4, a bonding layer, 5, a heat insulation layer, 6, a protective layer, 7, a glass fiber net, 8, a heat insulation self-tapping screw, 9, a self-tapping screw, 101, a steel frame column, 102, a connecting sheet, 103, a connecting keel, 104, a screw, 105 and a steel frame beam.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is obvious that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
Detailed description of the preferred embodiment 1
The specific embodiment provides a method for manufacturing a light steel keel prefabricated composite insulation board, which mainly comprises the following steps:
a1, welding a keel framework 1 by adopting a welding robot in a factory; the keel frame 1 is made of cold-formed thin-walled steel or square tubes, so that the strength is ensured, the weight is reduced, and the outer peripheral surface of the keel frame 1 is smooth.
A2, flatly placing the fireproof plate 2 on the keel framework 1, connecting the fireproof plate 2 with the keel framework 1 by using a connecting piece, and painting or spraying a special interface agent for the fireproof plate 2 on the outer side plate surface of the fireproof plate 2 to form an interface processing layer 3; the preferred self-tapping screw 9 that is the connecting piece, PLASTIC LAMINATED 2 paves in keel framework 1's lateral surface to fix with self-tapping screw 9, form the basic unit of whole compound incubation heated board, need not to pack fillers such as insulation material in keel framework 1, and the layering is clear and definite, and keel framework 1 holds and reserves bigger space, the operation such as wiring, erection joint of being convenient for.
A3, after the interface treatment layer 3 is dried, coating or scraping polymer bonding mortar on the interface treatment layer 3 to form a bonding layer 4;
a4, adhering the heat-insulation plate to the outer side of the bonding layer 4 to form a heat-insulation layer 5;
a5, directly pouring the heat insulation slurry on the outer side surface of the adhered heat insulation layer 5 to form a protection layer 6, wherein a layer of glass fiber net 7 is pressed into the outer surface of the heat insulation slurry protection layer 6 by a roller to play a role in enhancing crack resistance;
a6, after the protective layer 6 is dried, the mechanical anchoring is carried out by using a heat-preservation tapping screw 8, and the heat-preservation tapping screw 8 is anchored on the fireproof plate 2 after penetrating through the protective layer 6 and the heat-preservation layer 5.
In the step A2, the special interface agent for the fireproof plate 2 is coated or scraped on the outer side plate surface of the fireproof plate 2 to form an interface treatment layer 3, the interface treatment layer 3 and the bonding layer 4 are bonded and compounded together, the bonding is firm, the thickness of the bonding layer 4 is 2mm to 10mm, and the heat insulation layer 5 is bonded through the bonding layer 4, so that the heat insulation layer 5 is firmly bonded to the upper surface, and the cavity and delamination are avoided.
The fireproof plate 2 is any one of a gypsum plaster board, a fiber reinforced calcium silicate board or a fiber reinforced cement board, and the fireproof plate 2 is connected with the light steel keel framework 1 through a self-tapping screw 9. The thickness of the fire protection plate 2 is 8mm to 25mm.
In the step A4, the heat insulation board is any one of a polystyrene board, a polyurethane board or a phenolic aldehyde board, and the thickness of the heat insulation layer 5 is determined by calculation according to the energy-saving design requirement.
In the step A5, the protective layer 6 is a protective layer 6 made of glue powder polyphenyl granule heat-insulating slurry or vitrified microsphere heat-insulating slurry, the burning performance grade of the slurry is not lower than grade A2, the protective layer is poured on the upper surface of the heat-insulating layer 5, and alkali-resistant glass fiber net 7 grids are pressed in. The thickness of the protective layer 6 is 20mm to 50mm.
In the step A6, the heat-insulating self-tapping screws 8 comprise plastic connecting pipes with discs at tail ends and self-tapping screws 104, the self-tapping screws 104 are inserted into the plastic connecting pipes, and the protective layer 6, the heat-insulating layer 5 and the fireproof plate 2 are mechanically anchored together by the heat-insulating self-tapping screws 8.
In the specific embodiment, the keel framework 1 of the light steel keel composite heat-insulation board is welded by a welding robot in a factory, the fireproof board 2 is nailed and paved by special equipment, the composite heat-insulation layer 5 and the protective layer 6 are arranged on a production line, the production efficiency is high, the product quality is easy to control, the problems that the field processes of the traditional light steel keel composite wallboard are multiple and the workload is large are solved, and the requirement of factory production of the outer wall parts of the fabricated building is met.
In the specific embodiment, the light gauge steel prefabricated composite heat-insulation board manufactured by the method (see fig. 1-4) is manufactured by taking a keel framework 1 paved with a fireproof plate 2 as a base layer, and can bear the dead weight of the light gauge steel prefabricated composite heat-insulation board and wind load and earthquake load acting on the light gauge steel prefabricated composite heat-insulation board, the fireproof plate 2 is positioned on the outer side of the keel framework 1, and then a heat-insulation layer 5 is arranged outside the fireproof plate 2, and the heat-insulation layer 5 is homogeneous, so that the temperature field of the inner surface of the light gauge steel prefabricated composite heat-insulation board can be uniformly distributed, and the thermal engineering design requirements of the wall board can be met, but not the structural mode of filling heat-insulation materials in the framework in the prior art. Be connected through self-tapping screw 9 between PLASTIC LAMINATED 2 and the fossil fragments skeleton 1, be fixed in fossil fragments skeleton 1 with the PLASTIC LAMINATED 2 is firm, self-tapping screw 9 is located the inboard of heat preservation 5, the inoxidizing coating 6, be connected with heat preservation self-tapping screw 8 between heat preservation 5 and the PLASTIC LAMINATED 2, in order to further strengthen inoxidizing coating 6, the security of being connected between heat preservation 5 and the PLASTIC LAMINATED 2, heat preservation self-tapping screw 8 and self-tapping screw 9 staggered arrangement, this kind of arrangement can not make the metal nail body link up whole light gauge steel prefabricated composite insulation board, the production of through nature heat bridge has been avoided, and each structural layer connects safe and reliable.
Detailed description of the preferred embodiment 2
Among the prior art, self preservation temperature side fascia and steel construction adopt embedded being connected, and the beam column exposes the size less, has increased the aesthetic property in indoor usable floor area and room, and the wallboard dead weight direct transfer gives the major structure, and the connecting piece does not bear vertical load, mainly plays and resists horizontal load and limiting displacement. Compared with the wallboard externally hung type connection, the node has simple structure and convenient wallboard construction, thereby having wide application in engineering practice. The beam column exposes and forms the heat bridge in embedded connection, needs additional external thermal insulation to handle, but current steel structure beam column heat bridge processing technology still has following problem: 1. the beam column thermal bridge treatment site has multiple processes and is complicated to construct. In the prior art, the light steel keels are welded on the outer sides of beams and columns, heat-insulating plates are adhered on the outer sides of the light steel keels by using bonding mortar, heat-insulating anchor bolts are used for assisting mechanical anchoring or heat-insulating materials are filled in a skeleton formed by the light steel keels, and the light steel keel frame has long construction period and higher cost. 2. The connection safety of the heat insulation plate at the heat bridge and the main body structure is poor. The insulation board is fixed by adopting a bonding and anchoring technology on a construction site, wet operation and mechanical anchoring operation exist on the site, the influence of external environment, technical level and human factors is large, the construction quality is difficult to control, the connection reliability of the insulation board at a beam column thermal bridge is low, and the potential safety hazard of falling of the insulation board exists. 3. The heat insulation board for heat bridge treatment has poor fireproof performance. At present, molded plates, extruded plates, polyurethane plates and the like used for heat-bridge heat-insulation treatment are organic heat-insulation plates which are all combustible materials and have fire-proof potential safety hazards when applied to exterior wall engineering.
In order to solve the above-mentioned problems of the prior art, the present embodiment provides a wall construction method, which mainly includes the following steps:
s1, drawing a light steel keel prefabricated composite insulation board row board diagram
Drawing a light steel keel prefabricated composite insulation board arrangement diagram for steel structure beam column heat bridge treatment, and determining the specifications, the number and the positions of the light steel keel prefabricated composite insulation boards and the connecting keels 103;
s2, installing and connecting keel 103
According to a light steel keel prefabricated composite insulation board gang board drawing, popping up an installation control line on a main body structure, horizontally welding and connecting a keel 103 on a steel frame column 101, and vertically welding and connecting the keel 103 on a steel frame beam 105;
s3, installing light steel keel prefabricated composite heat insulation board
According to the control line which is bounced, the light steel keel prefabricated composite heat-insulation board is connected with a connecting keel 103 welded on a steel frame beam 105 and a steel frame column 101 through a connecting piece, and the light steel keel prefabricated composite heat-insulation board is installed; the connecting piece adopts an L-shaped connecting piece 102 and a screw 104, one side of the connecting piece 102 is connected with the keel framework 1 through the screw 104, and the other side of the connecting piece 102 is connected with a connecting keel 103 through the screw 104.
In the concrete implementation mode, the light steel keel prefabricated composite heat-insulation board is processed and manufactured in a factory according to a plate arrangement diagram, is connected with the connecting keels 103 welded on the steel frame columns 101 and the steel frame beams 105 through connecting pieces on site, is simple and convenient to operate and high in installation speed, and solves the problems of multiple site processes, complex construction, long construction period, high cost and low assembly construction degree in the traditional method. The wall structure built in this way is shown in fig. 5.
The terms "upper", "lower", "outside", "inside", and the like in the description and claims of the present invention and the above-described drawings (if any) are used for distinguishing relative positions without necessarily being construed qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. A manufacturing method of a light steel keel prefabricated composite insulation board is characterized by mainly comprising the following steps:
a1, welding a keel framework;
a2, horizontally placing the fireproof plate on the keel framework, and connecting the fireproof plate with the keel framework by using a first connecting piece;
a3, coating or scraping polymer bonding mortar on the outer side of the fireproof plate to form a bonding layer;
a4, adhering a heat-insulating layer on the outer side of the bonding layer;
and A5, after the heat-insulating layer is bonded, mechanically anchoring by using a heat-insulating self-tapping screw, wherein the heat-insulating self-tapping screw penetrates through the heat-insulating layer and is anchored on the fireproof plate, and the heat-insulating self-tapping screw and the first connecting piece are arranged in a staggered manner.
2. The manufacturing method of the light steel keel prefabricated composite insulation board according to claim 1, wherein after the step A4, insulation slurry is poured on the outer board surface of the insulation layer to form a protective layer, and then the step A5 is carried out, and insulation self-tapping screws penetrate through the protective layer and the insulation layer and are anchored on the fireproof board.
3. The method for manufacturing a light gauge steel prefabricated composite insulation board according to claim 2, wherein the glass fiber net is pressed in the forming process of the protective layer.
4. The method for manufacturing the light steel keel prefabricated composite insulation board according to claim 1 or 2, wherein a keel framework adopts cold-formed thin-walled steel or square tubes.
5. The manufacturing method of the light steel keel prefabricated composite insulation board as claimed in claim 1 or 2, wherein the outer side board surface of the fire-proof board is coated or scraped with a special interface agent for the fire-proof board to form an interface treatment layer, and the interface treatment layer and the bonding layer are bonded and compounded together.
6. The manufacturing method of the light steel keel prefabricated composite insulation board as claimed in claim 1 or 2, wherein the fireproof board is any one of a paper-faced gypsum board, a fiber reinforced calcium silicate board or a fiber reinforced cement board, the first connecting piece adopts a self-tapping screw, the fireproof board is fixedly connected with the light steel keel framework through the self-tapping screw, and the thickness of the fireproof board is 8mm to 25mm.
7. The manufacturing method of the light steel keel prefabricated composite insulation board as claimed in claim 1 or 2, wherein the insulation layer is any one of polystyrene board, polyurethane board or phenolic board, the insulation self-tapping screws comprise plastic connecting pipes with discs at tail ends and self-tapping screws, and the self-tapping screws are inserted into the plastic connecting pipes.
8. The manufacturing method of the light steel keel prefabricated composite insulation board as claimed in claim 2, wherein the protective layer is formed by solidification of glue powder polyphenyl particle insulation slurry or vitrified micro-bead insulation slurry, and the thickness of the protective layer is 20mm to 50mm.
9. A wall construction method is characterized by mainly comprising the following steps:
s1, determining the installation positions of a light steel keel prefabricated composite insulation board and a connecting keel;
s2, popping up an installation control line on the steel structure main body, fixedly connecting a keel on the frame steel column, and fixedly connecting a keel on the frame steel beam;
s3, connecting the light steel keel prefabricated composite heat-insulation board with a connecting keel fixed on the frame steel beam and the frame steel column through a second connecting piece according to the elastic control line;
the light steel keel prefabricated composite heat-insulation board comprises a keel framework, a fireproof plate and a heat-insulation layer, wherein the fireproof plate is connected onto the keel framework through a first connecting piece, the fireproof plate is located on the outer side of the keel framework, the heat-insulation layer is located on the outer side of the fireproof plate, heat-insulation self-tapping screws are connected between the heat-insulation layer and the fireproof plate, the heat-insulation self-tapping screws penetrate through the heat-insulation layer and then are anchored onto the fireproof plate, the heat-insulation self-tapping screws are arranged in a staggered mode with the first connecting piece, and the keel framework, the fireproof plate and the heat-insulation layer are connected into a whole.
10. The method for constructing a wall according to claim 9, wherein the coupling studs are horizontally welded to the frame steel columns and the coupling studs are vertically welded to the frame steel beams in step S2.
11. The wall construction method of claim 9, wherein the second connection member includes an L-shaped connection piece and a screw, one side of the connection piece is connected to the keel frame by the screw, and the other side of the connection piece is connected to the connection keel by the screw.
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