KR20210002194A - Method for changing width and length of aluminum panel used in construction of building - Google Patents

Abstract

The present invention relates to a method of recycling an aluminum panel for construction, capable of reforming an existing aluminum panel into a panel having a changed width and length of a specific measurement demanded by an individual construction site. The method comprises the following steps of: providing two existing aluminum panels for construction; cutting off a predetermined section of a lower part of one of the two panels and a predetermined section of an upper part of the other one; removing a partial section of both sides of a flat body of the two panels in a longitudinal direction; cutting off upper and lower frames and a reinforcement frame in a longitudinal direction from one spot of a cut width section; placing the two panels vertically on a straight line; and welding a contact part between members by preparing side frames for recycling having ″┌-shaped″ and ″┐-shaped″ cross sections and locating the frames on cut parts on both sides of the panels placed vertically. Through the implementation of such processes, the panels provided as materials can be recycled into panels having a changed width and length.

Description

How to change the width and length of aluminum panels for construction {METHOD FOR CHANGING WIDTH AND LENGTH OF ALUMINUM PANEL USED IN CONSTRUCTION OF BUILDING}

The present invention relates to an aluminum panel used as a formwork for building construction, and more particularly, for a building that uses an existing aluminum panel to be reshaped into a panel having a width and length changed to a specific dimension required at an individual construction site. It relates to a method of changing the width and length of an aluminum panel, and an aluminum panel reshaped by the method.

In general, in the construction of barking buildings, such as buildings or apartments, formwork is installed around walls and pillars until concrete is cured by pouring concrete slurry to erect the walls, floors, and pillars of the building.

The formwork requires a high-strength material capable of withstanding such a load because a considerable load and lateral pressure by the poured concrete are applied to the formwork. As a conventional building formwork, a so-called channel form made of iron has been mainly used. The flow path form consists of a structure in which an outer frame welded along the outer periphery of the plate body and a reinforcing frame crossing the frame are integrally formed on the rear surface of the square plate body in direct contact with the concrete.

On the other hand, in recent years, a panel made of aluminum, which is relatively advantageous in formability, handling and recyclability, has been developed and used in place of the iron euroform, and a site in which a building is constructed by applying such an aluminum panel (aka'Alform'). This is rapidly expanding. Initially, the aluminum panel was of the same structure as the flow form, and only the material was changed, that is, a frame consisting of a reinforcing frame and an outer frame were separately provided on the rear surface of the square aluminum plate body, and these two members were integrated by welding. there was.

However, in architectural aluminum panels used these days, the side frames perpendicular to the flat body along both edges of the flat body are extruded into one body, and the top of the panel body in which the side frames are integrally formed. The upper and lower frames are formed at the upper and lower frames, while the reinforcing frames are fixed in multiple places between the upper and lower frames by welding, etc., or, in the case of a relatively wide panel, a flat plate of two members extruded into a "b" cross section It is manufactured by welding the upper and lower frames and reinforcing frames after butt-welding the minor ends. In the case of a panel in which the side frame is integrally extruded with the plate body as described above, the support strength of the side frame is significantly improved compared to the case of forming the side frame by welding to both corners of the rear surface of the plate body made of the conventional simple plate body. In addition, it is advantageous in terms of panel productivity.

On the other hand, the aluminum formwork panels for building mainly consist of two types: wall panels used for walls and columns, and deck panels used for slab construction.Wall panels differ depending on the manufacturer, but the width is generally 300mm. It varies in increments of 50mm up to 600mm, and has a lengthwise rectangular shape standardized to 2300mm and 2450mm in height, and the deck panel is also manufactured and shipped in standardized sizes such as 600mm x 1200mm.

However, since the overall length of the wall at the building construction site is not constant, there may be cases where the wall formwork cannot be formed only with the standardized panel. In this case, it is unavoidable to have a width corresponding to the spacing of the wall. Wall panels must be separately manufactured, but for panel manufacturers operating extrusion facilities suitable for mass production of standardized panels, it is cumbersome in the work process to newly manufacture wall panels with a specific width of non-standard. There is a problem in that it is inevitable to reduce the cost and additional manufacturing costs.

On the other hand, there has been an attempt to manufacture and use a wall panel having a width suitable for the scrap wall by using an existing standardized wall panel, particularly a panel that has been used at least once. The above attempt is a method of cutting a certain width along the length direction of an existing standard wall panel to obtain the required width, and then fixing the side frame by welding to the cut longitudinal side surface. In the case of manufactured or recycled aluminum panels, since the bonding strength or support strength of the side frames attached by welding is low, there is a problem that it cannot withstand the load or side pressure applied by concrete during actual use and bursts, making it impossible to commercialize it. have.

As a conventional method of manufacturing a wall panel with a changed width through regeneration of an existing aluminum panel, all of the flat body and the outer frame attached and fixed to it through welding and the reinforcing frame are separated from each other by cutting, etc., and then the flat body is separated from each other. Two or more cuts along the longitudinal direction, and accordingly, the separated outer frame is also cut along the longitudinal direction, and a plurality of panels are completed by welding the divided plate body and the frame again. However, as the process from cutting and re-welding to the process is complicated and requires a lot of time, it is hardly used in the actual construction site.

In addition, as a method of regenerating a ready-made flow path form in which wood plywood is bonded to an iron frame to a specific width required or to have two types of widths reduced, the length direction from a certain point in the width direction of the frame is changed after removing the wooden board body from the frame. Cut according to the cut, cut into two parts, and form a frame with a reduced width or intended width by joining each side frame to the cut surface through welding, and then combining the cut wooden boards for each frame size. A method of reproducing Euroform is known. However, the flow path foam regeneration method cannot be applied to a regeneration method of aluminum foam produced through extrusion molding of the same material, since the flow path foam is made of a combination of disparate materials such as an iron frame and plywood.

In addition to this, in the case of building construction, as described above, when a standard panel alone cannot cover the width of a specific wall, a panel having a specific dimension (non-standard) width corresponding to the scrap width is required. In order to construct a wall that is higher than the height, a panel of a specific size (length) suitable for the height must be newly manufactured, or two or more of the existing panels are cut to an appropriate length and connected up and down to be used.

However, since it is not economical in terms of cost and time to produce a new panel having a specific length, it is preferable to use the existing panel. Therefore, in the construction site, the existing panels are simply joined in the longitudinal direction through welding. As a result, a problem has been pointed out that the joint is not able to withstand the load applied from the concrete for wall molding because the joint strength of the welded joint is not sufficient, and the joint is bursting or deformed, and thus improvement is desired.

Republic of Korea Utility Model Publication No. 20-0169470 Korean Patent Publication No. 10-1005514

The present invention was devised in consideration of the disadvantages and problems of the prior art, and the strength of the side frame portion is comparable to that of the original frame while having a changed width and length through a simple process using a previously manufactured aluminum panel. It is to provide a method of manufacturing an aluminum panel in which the width and length are changed to be maintained.

Another object of the present invention is to re-create a panel having a changed width and length using an aluminum panel that is already in a state where it is difficult to use it repeatedly because it has been used several times at a building construction site, It is to provide a method of recycling an aluminum panel so that economic loss and cost can be preserved and a new panel can be recycled.

Another object of the present invention is to provide an aluminum panel for construction manufactured with a width and length changed through the above method, particularly a non-standard width and length.

The present invention also relates to an improvement of patent application No. 10-2018-130568 previously filed by the applicant. The above-mentioned invention is a method of bonding a side frame for reproduction to the removed portion by welding after removing a certain width of one side in changing the width of the aluminum panel used in the past to a specific width.

However, for aluminum panels, the size (height) of the side frame, the spacer insertion groove formed on the side frame, and the location of the connection pin insertion hole for connection with the adjacent panel show little differences between manufacturers. In the case of changing the width for use in the width of a scrap with an existing panel having a side frame standard different from the aluminum panel used at the construction site to be constructed or constructed, both side frames are currently used for construction. It must be reproduced to support the dimensions consistent with the side frame of the.

Accordingly, in the present invention, the width of the aluminum panel is changed so that the side frame that matches the panel of the construction site to be constructed on both sides is provided as the width change target of the panel that has different specifications of the side frame, and a length of more than the standard panel is required. In this case, it provides a method for regenerating an aluminum panel in which the width and length are simultaneously changed through the width processing of two or more ready-made panels, followed by vertical bonding and common bonding of the side frames to the bonding body.

The above object of the present invention;

It is a vertical rectangular shape that is larger in length than the width, and is provided with a side frame that is perpendicular to the plate body on both sides in the length direction and is integrally extruded. Providing two architectural aluminum panels configured by fixing the frame by welding;

Cutting one panel at a lower portion and the other panel at a predetermined portion at the upper portion so that the two panels are connected and joined up and down to a specific length required;

For each of the panels in which the lower and upper certain sections are cut, a small cut-width section is removed from both sides of the plate body through grinding or cutting along the length direction.At this time, the upper and lower frames and the reinforcing frames on the bottom are originally Exposing while maintaining the shape of;

The upper and lower frames and the reinforcing frames are cut along the length direction from one point in each area of the cut width of the plate to remove the side frames outside the cut line of the cut width of the plate and the parts connected to the upper and lower frames. And exposing the outer end of the reinforcing frame to a state protruding outward of the panel body by the length of the remaining cut width.

"형 및 "ㄱ" 단면을 구비하며 상기 하부 및 상부 일정 구간이 절단된 상기 두 패널의 합해진 길이와 동일한 길이의 재생용 측면 프레임을 각각 마련하는 단계;It has the same thickness as the plate body and has a rib extending to the same length as the remaining cutting width, while being integrally extended perpendicular thereto.

Providing side frames for reproduction each having a "shaped and "a" cross section and having a length equal to the combined length of the two panels from which the lower and upper predetermined sections are cut;

The upper and lower frames and the outer ends of the reinforcing frame are protruded in a straight line up and down so that the longitudinal cuts are in contact with the upper and lower frames and the outer ends of the reinforcing frame, as well as cutting a certain section of the lower and upper portions. step;

The upper and lower frames and reinforcement frames, where the ribs of the reproduction side frame are exposed at the remaining cut width by placing each of the reproduction side frames at the cut portions of the two panels arranged in a straight up and down line with the both sides cut and removed. Allowing the ends of the ribs to remain in contact over the entire length of the cut surfaces of the flat plates of the two panels while being supported in contact with the image;

Welding of the vertical contact portion of the two panels, the longitudinal contact portion between the rib of the side frame for reproduction and the cut surface of the plate body, and the protruding upper and lower frames and the entire contact portion between the reinforcing frame and the side frame for reproduction The two panels and the side frames for reproduction on both sides are integrated to complete a panel whose width and length are changed;

It is achieved by a method of changing the width and length of the aluminum panel for building, characterized in that made, including.

The aluminum panel provided in the first step of the method of the present invention is a panel produced in a conventional standardized dimension, and may be any panel that has been used or before use. The standardized dimensions are not strictly managed, but are determined in consideration of the general floor height applied in buildings for the convenience of mass production by panel manufacturers, and do not have a special meaning or binding force.

Next, in the longitudinal cutting step of the two panels, one panel cuts a certain section at the bottom and the other panel cuts a certain section at the top so that the two panels have a specific length required when the two panels are connected vertically. In this case, the lower part of the panel to be located at the top, that is, a certain section including the lower frame, is cut and removed from the two panels that are to be placed at the top and bottom, while the upper part of the panel to be located at the bottom, that is, a certain section including the upper frame. In cutting and removing, the cutting length is selected in consideration of the length of the panel to be finally obtained.

Subsequently, the lower and upper part of the panel is cut and removed by cutting and removing both sides of each flat body of the two panels. The selection of the cut width is an area that matches the width of the scrap required at the building construction site. In more detail, each of the side frames for reproduction are coupled to the two remaining cut width portions to be a point at which the width of the reconstructed panel coincides with the width of the scrap.

At this time, the area of the remaining cut width is suitable for securing a sufficient welding area between the ribs of the side frame for regeneration and the upper and lower frames and the reinforcing frame that are welded and fixed thereto so that the side frame for regeneration can be securely fixed. It is desirable to ensure that the size is secured. When cutting or removing the flat plate in small increments, it is recommended that the surfaces of the upper and lower frames and reinforcing frames that have been joined by welding to the bottom surface are exposed to the original shape without causing damage as much as possible. It is advantageous in welding with the ribs of the side frame for subsequent recycling.

Next, if the upper and lower frames and the reinforcing frames are cut along the cutting line of the cut width of the two panels, the upper and lower frames of the cut width and the outer ends of the reinforcing frames are equal to the length of the remaining cut width. It is exposed while protruding outward from the panel body. That is, the upper frame and the reinforcing frame of one panel, and the lower frame and the reinforcing frame of the other panel protrude outward on both sides of the flat plate whose width is narrowed by cutting.

"형 및 "ㄱ"형 단면의 재생용 측면 프레임을 마련하게 되는데, 이들 재생용 측면 프레임의 재질은 상기 패널과 동일한 재질로 형성하여 이후의 용접이 용이하게 이루어지도록 하는 것이 바람직하다. 그리고 상기 재생용 측면 프레임의 길이는 상기 하부 및 상부 일정 구간이 절단된 두 패널의 합해진 길이와 동일한 길이가 되도록 형성하게 된다.next, "

Side frames for reproduction of "type and "a"-shaped cross-sections are provided, and the material of the reproduction side frames is preferably made of the same material as that of the panel so that subsequent welding is facilitated. The length of the side frame is formed to be the same length as the combined length of the two panels in which the lower and upper predetermined sections are cut.

"형 및 "ㄱ"형 단면의 재생용 측면 프레임의 리브가 잔여 절단 폭 부위에 노출된 상,하 프레임 및 보강 프레임의 표면에 접촉지지된 가운데 리브의 단부가 상기 두 패널의 평판체 절단면의 전체 길이에 걸쳐 접촉상태가 유지되도록 배치하게 된다.Next, a certain section of the lower and upper portions is cut, and the upper or lower frame and the outer ends of the reinforcing frame are placed up and down so that the longitudinal cuts of the two panels protrude outward from the remaining cut width of the plate body. In the above "

The entire length of the cut surface of the flat body of the two panels in the middle of the ribs of the side frame for reproduction of "shaped and "a"-shaped sections in contact with the surfaces of the upper and lower frames and reinforcing frames exposed to the remaining cut width It is arranged so that the contact state is maintained throughout.

As the next process, a member in contact with the contact part between the upper and lower panels, the upper or lower frame protruding outward from the upper and lower panels, and all the contact parts between the reinforcing frame and both side frames for recycling. It is to be fixed between them. At this time, the welding is preferably argon welding as the most common welding method for aluminum materials, and other welding methods may be applied in some cases.

Through a series of processes according to the present invention as described above, an aluminum panel of a new standard changed to a predetermined width and length is completed.

"형 및 "ㄱ"형 단면으로서 상기 상,하부 패널의 전체 길이와 동일한 길이의 재생용 측면 프레임을 포함하여 구성되며, 이때 상기 상,하부 패널의 평판체 양 측면과 상기 재생용 측면 프레임의 리브의 단부가 서로 맞닿은 접촉부와 상,하부 패널의 돌출된 상,하 프레임 및 보강 프레임과 재생용 측면 프레임 사이의 접촉부가 용접에 의해 일체로 고정됨을 특징으로 하는 변경된 폭 및 길이를 갖는 건축용 알루미늄 패널을 제공된다.In the present invention, an upper frame and a reinforcing frame protruding outward from both end surfaces of the aluminum plate body with the same length are welded and fixed to the rear surface of the plate body, and in a straight line at the bottom of the upper panel. The lower frame and the reinforcing frame are welded and fixed to the bottom of the plate body having the same width as the upper panel, and the lower panel protrudes outwardly, and the upper and lower panels have the same thickness as the plate bodies of the upper and lower panels. Ribs of the same length as the protruding length of the frame are integrally extended

It is configured to include a side frame for reproduction having the same length as the total length of the upper and lower panels as "shaped and "a"-shaped cross-sections, wherein both sides of the plate body of the upper and lower panels and the ribs of the side frame for reproduction A construction aluminum panel having a changed width and length, characterized in that the contact portions of which the ends of the panels are in contact with each other, the protruding upper and lower frames of the upper and lower panels, and the contact portions between the reinforcing frame and the side frame for reproduction are integrally fixed by welding. Is provided.

At this time, the upper and lower panels are formed by removing both outer side frame portions of the general aluminum panel and some sections in the longitudinal direction of the panel.At this time, the panels before the both side frames are removed are pre-fabricated before, after and before disposal. Any of the aluminum panels can be used.

In the method of the present invention, a panel having a changed width in a state in which the previously manufactured aluminum panel has a changed width and length through a simple process while maintaining the strength of the side frame portion comparable to that of the original panel's side frame. As it is reborn, it has the advantage of being able to easily manufacture panels of the required width and length with a simple process without requiring additional extrusion equipment for use in scrap spaces of the construction wall.

In addition, the present invention has been used several times at the building construction site and is in a state where it is difficult to use any more repeatedly, or by using an aluminum panel that is in the stage before disposal to be reborn as a panel having a changed width and length, economic loss due to the disposal of the panel Compared to the recycling process, which involves cumbersome and uneconomical processes such as dismantling, cutting, scraping, and melting of discarded panels, it is possible to conserve costs and regenerate new panels. I can.

1 and 2 show the overall structure of a general architectural aluminum panel, and FIG. 1 is a perspective view and FIG. 2 is a plan view.
3 to 8 show step by step an embodiment method of the present invention,
3 is a plan view of a process in which a certain lower section of the upper panel and a certain upper section of the lower panel are cut and removed,
4 is a side view and a plan view of a state in which some sections on both sides of the plate body are slightly removed from the upper and lower panels of FIG. 3;
5 is a side view and a plan view showing a process in which both side frame portions are removed by cutting at one point in the area where the flat plate portion of FIG. 4 is removed,
6 is a side view and a plan view showing a state in which both side frame portions are removed through the cutting process of FIG. 5;
7 is a side view and a plan view showing a state before the upper and lower panels and the side frame for reproduction are combined,
8A and 8B are plan views and partially cut-away perspective views of a panel having a width changed through the method of the present invention.

The technical object of the present invention, distinctive effects, including characteristic processes and configurations, will be more clearly understood by those skilled in the art through the detailed description below with reference to the drawings for the embodiments of the present invention.

First, FIGS. 1 and 2 are perspective views and plan views showing the overall structure of a general architectural aluminum panel as an object for which a width change is attempted in the method of the present invention. The illustrated panel 1 has a relatively upper and lower length compared to the width. As a wall panel for building a long wall, the side frames 200 and 200 ′ are integrally formed in the extrusion step along both outer edges of the flat body 100, and the upper and lower portions thereof along the length direction of the flat body 100 Each of the upper and lower frames 300 and 300 ′, and a plurality of reinforcing frames 400 in the middle of each other are arranged in parallel with the upper and lower frames 300 and 300 ′ at a predetermined distance from each other. It is integrally fixed through welding at the contact portion of 100 and the contact portion with the side frames 200 and 200 at both ends. In the drawings, reference numeral 500 denotes a reinforcing weld, 601 denotes a connection pin insertion hole for connection with an adjacent panel, and 603 denotes a spacer insertion groove that is inserted through the concrete wall to hold the inner and outer panels in close contact with the wall. to be.

Fig. 3 shows a process of cutting a certain section of one panel at the bottom and a certain section at the top of the other panel so that it has a specific length required when two panels are connected and joined up and down. As the upper panel 1'to be connected up and down, a certain section of the lower part is cut, and the right side is a lower panel 1", which is cut for a certain section of the upper part. In this case, the upper and lower panels are cut. The selection for the cutting section of (1')(1") shall be selected by cutting so that the combined length of the two panels (1')(1") after cutting is in accordance with the height of the wall required at the construction site, If possible, for the convenience of the cutting process, avoiding the formation of the reinforcing frame 400, centering on the cutting contact part of the upper and lower panels 1'and 1", and maintaining an appropriate distance up and down the reinforcing frame 400. It is desirable to allow) to be located.

4 is a diagram showing a process of cutting a small section by grinding or cutting both sides of the flat plate 100 for the upper and lower panels 1'and 1" that have been cut for a certain length in the lengthwise direction of FIG. 3 , Although the drawing shows an example of the grinding and removal process for the upper panel 1', it goes without saying that the work is performed with the same process for the lower panel 1". In the strip-shaped area cut along the longitudinal direction through such a flat plate cutting process, the joints of the upper and lower frames 300 and 300' and the reinforcing frame 400 that were fixed by welding with the flat plate 100 before cutting are cut. It is revealed as much as the width (cw).

After the cutting and removal of the narrow section on both sides of the plate body is completed, the upper and lower frames 300 and 300 ′ along the length direction from one point of each of the cut width (cw) regions of the plate body as shown in FIG. By cutting the reinforcing frame 400, the side frame outside the cut line cl of the cut width of the flat plate and a portion coupled thereto are removed.

FIG. 6 shows a state in which the process of FIG. 5 is completed. The upper and lower frames 300 and 300 ′ of the cut width cw and the outer ends of the reinforcing frame 400 are the length of the remaining cut width rcw. It is exposed as protruding outward from the panel body.

"형 및 "ㄱ"형 단면의 재생용 측면 프레임(600)(600')을 마련하게 되는데, 이때 상기 재생용 측면 프레임(600, 600')은 평판체(100)와 동일한 두께를 지니며 각기 상기 잔여 절단 폭(rcw) 및 상,하 프레임의 돌출 길이와 동일한 길이로 연장된 리브(610, 610')와 이에 수직하게 일체로 연장된 "

"형 및 "ㄱ"형 단면으로 형성된다. 상기 재생용 측면 프레임(600, 600')의 길이는 상기 상,하부 패널(1')(1")의 합해진 길이와 동일한 길이로 형성된다.Then, as in Fig. 7, "

There is provided a side frame 600 (600') for reproduction of "type and "a"-shaped cross section, in which case the side frame for reproduction (600, 600') has the same thickness as the plate body 100, and each Ribs 610 and 610 ′ extending to the same length as the remaining cutting width rcw and the protruding lengths of the upper and lower frames, and “

It is formed in a "shape and "a"-shaped cross section. The length of the reproduction side frames 600 and 600' is the same as the combined length of the upper and lower panels 1'and 1'.

As shown, the upper and lower frames 300 and 300 ′ and the upper and lower panels 1 ′ and 1 ″ in which the outer ends of the reinforcing frame 400 are projected are arranged in a straight line up and down The side frames 600 and 600 ′ for reproduction are placed at the cuts on both sides of the upper and lower panels 1 ′ and 1 ″ while the cut portions are in contact with each other. ) Of the ribs 610 and 610' are in contact with the upper and lower frames and the reinforcing frames exposed to the remaining cutting width (rcw), and the ends of the ribs extend to the entire length of the cut surfaces of the flat plates of the two panels. It is placed over so that the contact state is maintained.

Subsequently, the cut contact portions of the upper and lower panels 1 and 1 ″ in the vertical direction, and the cut surfaces of the ribs 610 and 610 ′ of the side frames 600 and 600 ′ for reproduction, and the flat plate 100 The two are welded to the entire contact part between the longitudinal contact part between the protruding upper and lower frames 200 and 200 ′ of the panel and the reinforcing frame 400 and the side frame 600 and 600 ′ for reproduction. The upper and lower panels 1 ′ and 1 ″ and the side frames for reproduction on both sides are integrated to complete a panel having a changed width and length.

In this case, in the welding, a continuous weld joint may be formed along the contact part, or spot welding may be performed at regular intervals, but relatively reinforced welding may be performed at a corner part or the like.

Fig. 8 is a constructional aluminum panel (1) having a changed width after welding of the upper and lower panels (1') (1") and the side frames (600) (600') for reproduction through the welding of Fig. 7 is completed. As a plan view and partially cut-away perspective view showing the overall structure of the regenerated structure, compared to the conventional general panel, the bonding line (bl) and the upper and lower panels along the longitudinal direction of the panel on both outer sides of the flat body 100 compared to the conventional panel (1')(1") It is distinguished in that the junction line (bl) along the width direction of the contact part is exposed.

1: aluminum panel
1': top panel
1": bottom panel
100: flat body
200, 200': side frame
300, 300': upper and lower frames
400: reinforcement frame
600, 600': side frame for playback 610, 610': rib
bl: bonding line cl: cutting line
cw: cutting width rcw: remaining cutting width

Claims (5)

It is a lengthwise rectangular shape that is longer than the width, and is provided with a side frame perpendicular to the plate body on both sides and integrally extruded. The upper and lower frames and the upper and lower frames are parallel to each other at intervals along the length direction with the upper and lower openings in the width direction. Providing two architectural aluminum panels configured by fixing the reinforcing frame by welding;
Cutting and removing one panel at a lower portion and the other panel at a predetermined portion at the upper portion so as to achieve a specific length required when the two panels are connected vertically;
For each of the panels in which the lower and upper certain sections are cut, a small cut-width section is removed from both sides of the plate body through grinding or cutting along the length direction.At this time, the upper and lower frames and the reinforcing frames on the bottom are originally Exposing while maintaining the shape of;
The upper and lower frames and the reinforcing frames are cut along the length direction from one point in each area of the cut width of the plate to remove the side frames outside the cut line of the cut width of the plate and the parts connected to the upper and lower frames. And exposing the outer end of the reinforcing frame to protrude outward of the panel body by the length of the remaining cut width.
It has a rib having the same thickness as the plate body and extending to the same length as the remaining cutting width, while being integrally extended perpendicular thereto.

Providing side frames for reproduction each having a "shaped and "a" cross section and having a length equal to the combined length of the two panels in which the lower and upper predetermined sections are cut;
Arranging the two panels in which the upper and lower frames and the outer ends of the reinforcing frame are protruded upward and downward such that the longitudinal cut portions are in contact with the upper and lower frames and the outer ends of the reinforcing frames to the outer sides of the remaining cut width of the flat plate body while cutting the lower and upper portions;
Each of the regeneration side frames is positioned at both side cuts of the panels arranged in a straight line up and down, so that the ribs of the regeneration side frames are in contact with the upper and lower frames and the reinforcing frames exposed to the remaining cut width. Allowing the ends to remain in contact over the entire length of the cut surfaces of the flat plates of the two panels;
The vertical contact portion of the two panels, the longitudinal contact portion between the rib of the side frame for reproduction and the cut surface of the flat body, and the entire contact portion between the protruding upper and lower frames of the panel and the reinforcing frame and the side frame for reproduction Welding the two panels and the side frames for reproduction on both sides to be integrated to form a panel having a changed width and length;
A method of changing the width and length of the aluminum panel for construction, characterized in that made, including. The method of claim 1, wherein the panel provided for changing the width and length is a panel that has been previously manufactured as a panel that has been used at least once or before being used at a construction site. The method of claim 1, wherein the panel provided for changing the width and length and the side frame for reproduction are made of the same material. An upper panel in which an upper frame and a reinforcing frame protruding outwardly at the same length from both end surfaces of the aluminum plate body are welded and fixed to the rear surface of the flat body,
The lower frame and the reinforcing frame are welded and fixed to the lower end of the upper panel in a straight line and welded to the bottom of the flat plate having the same width as the upper panel, and the lower panel protruding outwardly,
Ribs having the same thickness as the flat body of the upper and lower panels and having the same length as the protruding length of the upper and lower frames are integrally extended

It is configured to include a side frame for reproduction having the same length as the total length of the upper and lower panels as "shaped and "a"-shaped cross-sections,
At this time, the contact portions in which both sides of the plate body of the upper and lower panels and the ends of the ribs of the side frame for regeneration are in contact with each other, and the protruding upper and lower frames of the upper and lower panels, and the contact portions between the reinforcing frame and the side frame for regeneration are welded. Architectural aluminum panel having a changed width and length, characterized in that it is integrally fixed by. The method of claim 4, wherein a joint line parallel to the length direction of the panel is formed at a portion where the end surface of the plate body and the rib are in contact with each other, and a joint line in the width direction of the contact portion between the upper and lower panels is formed. Architectural aluminum panels with varied widths and lengths.

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