CN112431333A - Double-curved-surface aluminum plate curtain wall and manufacturing process thereof - Google Patents
Double-curved-surface aluminum plate curtain wall and manufacturing process thereof Download PDFInfo
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- CN112431333A CN112431333A CN202011361464.7A CN202011361464A CN112431333A CN 112431333 A CN112431333 A CN 112431333A CN 202011361464 A CN202011361464 A CN 202011361464A CN 112431333 A CN112431333 A CN 112431333A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention discloses a hyperboloid aluminum plate curtain wall and a manufacturing process thereof, the hyperboloid aluminum plate curtain wall comprises a hyperboloid aluminum plate, the hyperboloid aluminum plate comprises a panel and bending edges which are respectively connected with four side edges of the panel and bend towards the inner surface of the panel, reinforcing ribs are fixed on the inner surface of the panel, one side of each reinforcing rib is in an L-shaped angle structure, one side of each reinforcing rib is attached to the panel, the other side of each reinforcing rib is perpendicular to the panel, the bending edges on the left side and the right side of the panel are respectively connected with an L-shaped hanging lug, one side of each L-shaped hanging lug is fixedly attached to the inner side of each bending edge, the other side of each L-shaped hanging lug is perpendicular to each bending edge and faces towards the outer side of the panel and is provided with a connecting piece through hole, the bending edge on the upper side of the panel is provided with, and the hanging edge at the upper part of the next hyperboloid aluminum plate is inserted into the hook at the lower part of the previous hyperboloid aluminum plate.
Description
Technical Field
The invention relates to a double-curved-surface aluminum plate curtain wall and a manufacturing process thereof, belonging to the technical field of decoration of building outer walls.
Background
The aluminum plate is an environment-friendly and pollution-free curtain wall material, has the characteristics of light dead weight, good fireproof performance, good weather resistance and ageing resistance, and is widely used in the field of curtain wall materials. The double curved surface curtain wall made of aluminum plate has the characteristic of beautiful appearance, and is commonly used for outer wall decoration of high-grade office buildings and landmark buildings. The hyperboloid aluminum plate surface has the hyperboloid, leads to the processing technology complicated, in order to make aluminum plate can be easy processing go out the hyperboloid, can adopt the thickness that reduces panel usually, and the reduction of panel thickness will lead to curtain low strength, uses easy the deformation for a long time. When the double-curved-surface curtain wall is installed, the four folded edges of the double-curved-surface aluminum plate are usually installed on the keel frame through bolts, and the installation is complex.
Disclosure of Invention
The invention aims to provide a hyperboloid aluminum plate curtain wall which is simple to mount and high in strength compared with the prior art. Meanwhile, the invention also provides a manufacturing process of the double-curved-surface aluminum plate curtain wall.
The double-curved-surface aluminum plate curtain wall adopts the following technical scheme: a hyperboloid aluminum plate curtain wall comprises a hyperboloid aluminum plate with a hyperboloid surface, the hyperboloid aluminum plate comprises a panel and bending edges which are respectively connected with four side edges of the panel and bend towards the inner surface of the panel, the inner surface of the panel is fixed with a reinforcing rib which is an angular structure with an L-shaped section, one side of the reinforcing rib is attached to the panel, the other side of the reinforcing rib is vertical to the panel, the bending edges at the left side and the right side of the panel are respectively connected with an L-shaped hanging lug, one side of the L-shaped hanging lug is fixedly attached to the inner side of the bending edge, the other side of the L-shaped hanging lug is perpendicular to the bending edge and faces the outer side of the panel, and is provided with a connecting piece through hole, the bent edge at the upper side of the panel is provided with a hanging edge bent downwards, the bent edge at the lower side of the panel is provided with a hook which comprises a hook part bent towards the outer surface of the panel and a hyperboloid aluminum plate which is adjacent up and down, and the hanging edge at the upper part of the next hyperboloid aluminum plate is inserted into the hook at the lower part of the previous hyperboloid aluminum plate.
First bolts are welded on the bending edges on the left side edge and the right side edge of the panel, and the L-shaped hangers are attached to one side of the bending edge and fixed through the first bolts.
The inboard welding of panel has the second bolt, the strengthening rib laminating is in one side and second bolt fixed connection of panel.
The hooks are uniformly distributed on the bent edge of the side edge of the lower part of the panel at intervals.
The hanging edge is integrally connected to the bent edge of the side edge of the upper portion of the panel, and the hook is integrally connected to the bent edge of the side edge of the lower portion of the panel.
The manufacturing process of the double-curved-surface aluminum plate curtain wall adopts the following technical scheme: a manufacturing process of a double-curved-surface aluminum plate curtain wall comprises the following steps: (1) establishing a three-dimensional model for a double-curved-surface curtain wall to be manufactured, and then dividing the three-dimensional model of the curtain wall into a plurality of quadrilateral double-curved-surface model pieces; (2) selecting a die and a press roll according to the curved surface and the size of the hyperboloid model piece, specifically selecting a die with a concave surface, wherein the radian of the curved surface of the concave surface of the die is consistent with that of the hyperboloid model piece; (3) blanking and shearing: shearing an aluminum plate with proper size according to the size of the hyperboloid model piece, and reserving a bending edge when shearing the plate; (4) hot-press molding: putting the plate sheared in the last step into the die selected in the step (2), performing roll forming on the plate by using a press roller, heating the press roller while rolling, and finally, deforming the plate under the rolling and heating operations of the press roller to form a curved surface consistent with the hyperboloid model sheet; (5) bending: bending four edges of the plate subjected to the rolling forming in the previous step, respectively processing bent edges on four side edges of the plate, bending and processing a hanging edge bent downwards on the bent edge on the upper side of the plate, and bending and processing a hook on the bent edge on the lower side of the plate to enable the hook part of the hook to bend towards the outer surface of the plate; (6) connecting L-shaped hangers on the bent edges on the left side and the right side of the bent plate, and connecting reinforcing ribs on the inner surface of the plate; (7) polishing: the inner surface and the outer surface of the plate processed in the previous step are subjected to coarse grinding and fine grinding by using a grinding machine, so that the inner surface and the outer surface of the plate are smooth and have no burrs; (8) spraying: spraying paint on the polished plate, firstly spraying corrosion-resistant and anti-aging primer, then spraying finish paint with a preset color or pattern, and finally spraying a layer of varnish with a protective effect; (9) the manufactured hyperboloid aluminum plates are installed on the curtain keel frame one by one, hanging lugs on two sides of each hyperboloid aluminum plate are fixed on the keel frame through bolts respectively, a hook on the lower portion of the previous hyperboloid aluminum plate is hung in a hanging edge on the upper portion of the next hyperboloid aluminum plate, the upper hyperboloid aluminum plate and the lower hyperboloid aluminum plate which are adjacent are hung together, and finally the hyperboloid aluminum plate curtain wall is formed.
In the step (4), the heating temperature of the press roll is 300 to 500 ℃.
And (6) welding first bolts at the inner sides of the bent edges at the left side and the right side of the bent plate, and fixing the L-shaped hangers on the first bolts so as to fix the L-shaped hangers on the bent edges.
And (6) welding a second bolt on the inner surface of the bent plate, and fixing the reinforcing rib on the second bolt, so that the reinforcing rib is fixed on the inner surface of the plate.
And (3) when the plate is cut, cutting a hook part at intervals on one side of the plate with the hook.
The invention has the beneficial effects that: when the double-curved-surface aluminum plate curtain wall is installed, two sides of each double-curved-surface aluminum plate are fixed on a curtain wall keel frame according to the position of each double-curved-surface aluminum plate, specifically, one side of each L-shaped lug with a connecting piece through hole is fixed on the keel frame, and the L-shaped lugs are fixedly connected with the keel frame through bolts; when the upper and lower adjacent hyperboloid aluminum plates are connected, the hook at the lower part of the previous hyperboloid aluminum plate is hooked in the hanging edge at the upper part of the next hyperboloid aluminum plate, so that the upper and lower hyperboloid aluminum plates are hooked together. After the double-curved-surface aluminum plates are fixed on the curtain wall keel frame, sealant or sealing strips are filled between the adjacent double-curved-surface aluminum plates to complete the installation work of the curtain wall. When the double-curved-surface aluminum plate curtain wall is installed, the two double-curved-surface aluminum plates which are adjacent up and down are hung together, and only two sides of the double-curved-surface aluminum plate are required to be fixed by bolts, so that the installation process of the double-curved-surface aluminum plate curtain wall is greatly simplified. The reinforcing ribs are fixed on the inner surface of the double-curved-surface aluminum plate, so that the strength of the aluminum plate is greatly increased under the condition that the thickness of the aluminum plate is not increased, and the aluminum plate is not easy to deform in use, thereby improving the strength of the curtain wall and prolonging the service life of the curtain wall.
The manufacturing process of the double-curved-surface aluminum plate curtain wall comprises the steps of manufacturing according to a three-dimensional model of the curtain wall, putting a plate into a mold, performing hot press molding by using a press roll, enabling the molded plate to be consistent with the curved surface of the three-dimensional model sheet, bending to process a bent edge, connecting an L-shaped hanging lug and a reinforcing rib, polishing and spraying to form the double-curved-surface aluminum plate, and mounting the manufactured double-curved-surface aluminum plate on a keel frame to form the double-curved-surface curtain wall.
Drawings
FIG. 1 is a schematic structural view of a double-curved aluminum plate curtain wall according to the present invention;
FIG. 2 is a partial cross-sectional view of a hyperboloid aluminum sheet curtain wall of the present invention at the junction;
FIG. 3 is a schematic view of the L-shaped hanger of FIG. 1;
FIG. 4 is a flow chart of the manufacturing process of the double-curved-surface aluminum plate curtain wall.
In the figure: 1-panel, 2-bent edge, 21-hanging plate, 22-hook, 221-first vertical plate, 222-transverse plate, 223-second vertical plate, 3-reinforcing rib, 4-L-shaped hanging lug, 41-connecting piece through hole, 5-first bolt and 6-second bolt.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
The hyperboloid aluminum plate curtain wall of the embodiment of the invention comprises a hyperboloid aluminum plate with hyperboloid surfaces on the surface, as shown in fig. 1, the hyperboloid aluminum plate comprises a panel 1 and bending edges 2 which are respectively connected with four side edges of the panel 1 and bend towards the inner surface of the panel 1, a reinforcing rib 3 is fixed on the inner surface of the panel 1, the reinforcing rib 3 is an angular structure with an L-shaped section, one side of the reinforcing rib 3 is attached to the panel, the other side of the reinforcing rib 3 is vertical to the panel, L-shaped hanging lugs 4 are respectively connected to the bending edges 2 on the left side and the right side of the panel 1, one side of each L-shaped hanging lug 4 is fixedly attached to the inner side of each bending edge 2, the other side of each L-shaped hanging lug 4 is vertical to the bending edge 2 and faces the outer side of the panel 1, and is provided with a connecting piece through hole, a hanging edge 21 which is, the hook 22 includes a hook portion bent toward the outer surface of the panel 1, and as shown in fig. 3, of the hyperboloid aluminum plates adjacent up and down, a hanging edge 21 at the upper portion of the next hyperboloid aluminum plate is inserted into the hook 22 at the lower portion of the previous hyperboloid aluminum plate. The hooks 22 are uniformly distributed on the bending edge 2 of the lower side edge of the panel 1 at intervals. The hanging edge 21 is integrally connected to the bending edge 2 on the side edge of the upper portion of the panel 1, and the hook 22 is integrally connected to the bending edge 2 on the side edge of the lower portion of the panel 1.
All welded on the limit 2 of bending on two sides about panel 1 has first bolt 5, and L shape hangers 4 laminating is fixed through first bolt 5 in one side on the limit 2 of bending. As shown in fig. 3, the L-shaped hanging lug 4 is of an angular structure, and the connecting member through hole 41 is a long hole extending left and right on the L-shaped hanging lug. When the aluminum plates are mutually extruded under stress, the long holes enable the aluminum plates to be slightly displaced left and right, so that the stress is eliminated, and the deformation is prevented.
The inboard welding of panel 1 has second bolt 6, the laminating of strengthening rib 3 is in one side and second bolt 6 fixed connection of panel. The material of the reinforcing ribs 3 and the L-shaped hanging lugs 4 is the same as that of the panel 1.
The structure of two double curved surface aluminum plates adjacent from top to bottom at the junction is shown in fig. 2, the hook 22 comprises a first vertical plate 221 connected with the bending edge on the lower side of the panel 1, a horizontal plate 222 connected with the first vertical plate 221, and a second vertical plate 223 connected to the horizontal plate 222, the horizontal plate 222 is arranged at an interval with the bending edge, the second vertical plate 223 is arranged at an interval with the first vertical plate 221, and the space surrounded by the second vertical plate 223, the horizontal plate 222 and the first vertical plate 221 forms a hook part of the hook. And a sealant or a sealing strip is filled between the adjacent double-curved-surface aluminum plates, so that the sealing property and integrity of the curtain wall can be ensured, and the corrosion at the joint of the double-curved-surface aluminum plates is prevented.
The distance between the bent edges of the left and right adjacent hyperboloid aluminum plates close to each other is equal to the distance between the bent edges of the upper and lower adjacent hyperboloid aluminum plates close to each other. Therefore, the widths of the transverse gap and the vertical gap after the curtain wall is installed can be ensured to be equal, and the whole curtain wall is more attractive.
When the double-curved-surface aluminum plate curtain wall is installed, two sides of each double-curved-surface aluminum plate are fixed on a curtain wall keel frame according to the position of each double-curved-surface aluminum plate, specifically, one side of each L-shaped lug with a connecting piece through hole is fixed on the keel frame, and the L-shaped lugs are fixedly connected with the keel frame through bolts; when the upper and lower adjacent hyperboloid aluminum plates are connected, the hook at the lower part of the previous hyperboloid aluminum plate is hooked in the hanging edge at the upper part of the next hyperboloid aluminum plate, so that the upper and lower hyperboloid aluminum plates are hooked together. After the double-curved-surface aluminum plates are fixed on the curtain wall keel frame, sealant or sealing strips are filled between the adjacent double-curved-surface aluminum plates to complete the installation work of the curtain wall. When the double-curved-surface aluminum plate curtain wall is installed, the two double-curved-surface aluminum plates which are adjacent up and down are hung together, and only two sides of the double-curved-surface aluminum plate are required to be fixed by bolts, so that the installation process of the double-curved-surface aluminum plate curtain wall is greatly simplified. The reinforcing ribs are fixed on the inner surface of the double-curved-surface aluminum plate, so that the strength of the aluminum plate is greatly increased under the condition that the thickness of the aluminum plate is not increased, and the aluminum plate is not easy to deform in use, thereby improving the strength of the curtain wall and prolonging the service life of the curtain wall.
Fig. 2 shows a process for manufacturing a double-curved-surface aluminum plate curtain wall according to an embodiment of the present invention, which includes the following steps:
(1) establishing a three-dimensional model for a double-curved-surface curtain wall to be manufactured, and then dividing the three-dimensional model of the curtain wall into a plurality of quadrilateral double-curved-surface model pieces;
(2) selecting a die and a press roll according to the curved surface and the size of the hyperboloid model piece, specifically selecting a die with a concave surface, wherein the radian of the curved surface of the concave surface of the die is consistent with that of the hyperboloid model piece;
(3) blanking and shearing: shearing an aluminum plate with proper size according to the size of the hyperboloid model piece, and reserving a bending edge when shearing the plate; and (3) when the plate is cut, cutting a hook part at intervals on one side of the plate with the hook.
(4) Hot-press molding: putting the plate sheared in the last step into the die selected in the step (2), performing roll forming on the plate by using a press roller, heating the press roller while rolling, and finally, deforming the plate under the rolling and heating operations of the press roller to form a curved surface consistent with the hyperboloid model sheet; in the step (4), the heating temperature of the press roll is 300 to 500 ℃.
(5) Bending: bending four edges of the plate subjected to the rolling forming in the previous step, respectively processing bent edges on four side edges of the plate, bending and processing a hanging edge bent downwards on the bent edge on the upper side of the plate, and bending and processing a hook on the bent edge on the lower side of the plate to enable the hook part of the hook to bend towards the outer surface of the plate;
(6) connecting L-shaped hangers to the bent edges on the left side and the right side of the bent plate, specifically welding first bolts to the inner sides of the bent edges on the left side and the right side of the bent plate, and fixing the L-shaped hangers on the first bolts so as to fix the L-shaped hangers on the bent edges; connecting a reinforcing rib on the inner surface of the plate, specifically welding a second bolt on the inner surface of the bent plate, and fixing the reinforcing rib on the second bolt, so that the reinforcing rib is fixed on the inner surface of the plate;
(7) polishing: the inner surface and the outer surface of the plate processed in the previous step are subjected to coarse grinding and fine grinding by using a grinding machine, so that the inner surface and the outer surface of the plate are smooth and have no burrs;
(8) spraying: spraying paint on the polished plate, firstly spraying corrosion-resistant and anti-aging primer, then spraying finish paint with a preset color or pattern, and finally spraying a layer of varnish with a protective effect;
(9) the manufactured hyperboloid aluminum plates are installed on a curtain wall keel frame, hanging lugs on two sides of each hyperboloid aluminum plate are fixed on the keel frame through bolts respectively, a hook on the lower portion of the previous hyperboloid aluminum plate is hung in a hanging edge on the upper portion of the next hyperboloid aluminum plate, the upper hyperboloid aluminum plate and the lower hyperboloid aluminum plate which are adjacent are hung together, and finally the hyperboloid aluminum plate curtain wall is formed.
The manufacturing process of the double-curved-surface aluminum plate curtain wall is characterized in that the double-curved-surface aluminum plate curtain wall is manufactured according to a three-dimensional model of the curtain wall, a plate is placed into a mold, the plate is subjected to compression roller hot press forming, the formed plate is consistent with a three-dimensional model sheet curved surface, then a bent edge is processed through bending, then L-shaped hangers and reinforcing ribs are connected, double-curved-surface aluminum plates are formed through polishing and spraying, then the manufactured double-curved-surface aluminum plates are installed on a keel frame, and the double-curved-surface curtain wall. According to the double-curved-surface aluminum plate curtain wall manufactured by the invention, two double-curved-surface aluminum plates which are adjacent up and down are hung together, and only bolt fixing is needed to be carried out on two sides of each double-curved-surface aluminum plate, so that the installation process of the double-curved-surface aluminum plate curtain wall is greatly simplified. The reinforcing ribs are fixed on the inner surface of the double-curved-surface aluminum plate, so that the strength of the aluminum plate is greatly increased under the condition that the thickness of the aluminum plate is not increased, and the aluminum plate is not easy to deform in use, thereby improving the strength of the curtain wall and prolonging the service life of the curtain wall.
The above embodiment is a preferred embodiment of the present invention, and in other embodiments of the present invention, the L-shaped hanging lug may be welded to the bent edge, and the reinforcing rib may be welded to the inner surface of the plate.
The basic principles and the main features of the present invention and the advantages of the present invention have been shown and described above, and the present invention is not limited to the above embodiments but may be modified in many ways. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (10)
1. The utility model provides a hyperboloid aluminum curtain wall, has the hyperboloid aluminum plate of hyperboloid including the surface, hyperboloid aluminum plate include the panel and connect respectively at four sides of panel and to the limit of bending of panel internal surface bending, its characterized in that: panel internal surface is fixed with the strengthening rib, and the strengthening rib is the angular structure of L shape for the cross-section, and one side laminating of strengthening rib is at the panel, and the opposite side and the panel of strengthening rib are perpendicular, the edge of bending of the panel left and right sides is connected with L shape hangers respectively, and the fixed laminating in one side of L shape hangers is on the inboard on the limit of bending, and the opposite side of L shape hangers is perpendicular and towards the panel outside with the limit of bending to seted up the connecting piece and perforated, the edge of bending of panel upside has the hem of bending downwards, the bending of panel downside is on the limit has the couple, and the couple includes the hook portion of buckling towards the panel surface, and in the adjacent hyperboloid aluminum plate from top to bottom, the hem on next hyperboloid aluminum plate upper portion inserts in the.
2. The hyperboloid aluminum sheet curtain wall of claim 1, wherein: first bolts are welded on the bending edges on the left side edge and the right side edge of the panel, and the L-shaped hangers are attached to one side of the bending edge and fixed through the first bolts.
3. The hyperboloid aluminum sheet curtain wall of claim 1, wherein: the inboard welding of panel has the second bolt, the strengthening rib laminating is in one side and second bolt fixed connection of panel.
4. The hyperboloid aluminum sheet curtain wall of claim 1, wherein: the hooks are uniformly distributed on the bent edge of the side edge of the lower part of the panel at intervals.
5. The hyperboloid aluminum sheet curtain wall of claim 1, wherein: the hanging edge is integrally connected to the bent edge of the side edge of the upper portion of the panel, and the hook is integrally connected to the bent edge of the side edge of the lower portion of the panel.
6. The manufacturing process of the double-curved-surface aluminum plate curtain wall is characterized by comprising the following steps of: (1) establishing a three-dimensional model for a double-curved-surface curtain wall to be manufactured, and then dividing the three-dimensional model of the curtain wall into a plurality of quadrilateral double-curved-surface model pieces; (2) selecting a die and a press roll according to the curved surface and the size of the hyperboloid model piece, specifically selecting a die with a concave surface, wherein the radian of the curved surface of the concave surface of the die is consistent with that of the hyperboloid model piece; (3) blanking and shearing: shearing an aluminum plate with proper size according to the size of the hyperboloid model piece, and reserving a bending edge when shearing the plate; (4) hot-press molding: putting the plate sheared in the last step into the die selected in the step (2), performing roll forming on the plate by using a press roller, heating the press roller while rolling, and finally, deforming the plate under the rolling and heating operations of the press roller to form a curved surface consistent with the hyperboloid model sheet; (5) bending: bending four edges of the plate subjected to the rolling forming in the previous step, respectively processing bent edges on four side edges of the plate, bending and processing a hanging edge bent downwards on the bent edge on the upper side of the plate, and bending and processing a hook on the bent edge on the lower side of the plate to enable the hook part of the hook to bend towards the outer surface of the plate; (6) connecting L-shaped hangers on the bent edges on the left side and the right side of the bent plate, and connecting reinforcing ribs on the inner surface of the plate; (7) polishing: the inner surface and the outer surface of the plate processed in the previous step are subjected to coarse grinding and fine grinding by using a grinding machine, so that the inner surface and the outer surface of the plate are smooth and have no burrs; (8) spraying: spraying paint on the polished plate, firstly spraying corrosion-resistant and anti-aging primer, then spraying finish paint with a preset color or pattern, and finally spraying a layer of varnish with a protective effect to finally form the hyperboloid aluminum plate; (9) the manufactured hyperboloid aluminum plates are installed on the curtain keel frame one by one, hanging lugs on two sides of each hyperboloid aluminum plate are fixed on the keel frame through bolts respectively, a hook on the lower portion of the previous hyperboloid aluminum plate is hung in a hanging edge on the upper portion of the next hyperboloid aluminum plate, the upper hyperboloid aluminum plate and the lower hyperboloid aluminum plate which are adjacent are hung together, and finally the hyperboloid aluminum plate curtain wall is formed.
7. The process for manufacturing the double-curved-surface aluminum plate curtain wall according to claim 6, wherein the process comprises the following steps: in the step (4), the heating temperature of the press roll is 300 to 500 ℃.
8. The process for manufacturing the double-curved-surface aluminum plate curtain wall according to claim 6, wherein the process comprises the following steps: and (6) welding first bolts at the inner sides of the bent edges at the left side and the right side of the bent plate, and fixing the L-shaped hangers on the first bolts so as to fix the L-shaped hangers on the bent edges.
9. The process for manufacturing the double-curved-surface aluminum plate curtain wall according to claim 6, wherein the process comprises the following steps: and (6) welding a second bolt on the inner surface of the bent plate, and fixing the reinforcing rib on the second bolt, so that the reinforcing rib is fixed on the inner surface of the plate.
10. The process for manufacturing the double-curved-surface aluminum plate curtain wall according to claim 6, wherein the process comprises the following steps: and (3) when the plate is cut, cutting a hook part at intervals on one side of the plate with the hook.
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Application publication date: 20210302 |