CN113026995A - Box plate assembly type steel structure integrated wallboard and production process - Google Patents

Box plate assembly type steel structure integrated wallboard and production process Download PDF

Info

Publication number
CN113026995A
CN113026995A CN202110574724.7A CN202110574724A CN113026995A CN 113026995 A CN113026995 A CN 113026995A CN 202110574724 A CN202110574724 A CN 202110574724A CN 113026995 A CN113026995 A CN 113026995A
Authority
CN
China
Prior art keywords
stiffening ribs
steel plate
wallboard
steel
main
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110574724.7A
Other languages
Chinese (zh)
Other versions
CN113026995B (en
Inventor
兰涛
秦广冲
傅彦青
李然
门进杰
张博雅
李泽旭
樊冠磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Csic International Engineering Co ltd
Xian University of Architecture and Technology
Central Research Institute of Building and Construction Co Ltd MCC Group
Original Assignee
Csic International Engineering Co ltd
Xian University of Architecture and Technology
Central Research Institute of Building and Construction Co Ltd MCC Group
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Csic International Engineering Co ltd, Xian University of Architecture and Technology, Central Research Institute of Building and Construction Co Ltd MCC Group filed Critical Csic International Engineering Co ltd
Priority to CN202110574724.7A priority Critical patent/CN113026995B/en
Publication of CN113026995A publication Critical patent/CN113026995A/en
Application granted granted Critical
Publication of CN113026995B publication Critical patent/CN113026995B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2/58Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2/58Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
    • E04B2/60Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal characterised by special cross-section of the elongated members

Abstract

The invention relates to a box plate assembly type steel structure integrated wallboard and a production process thereof. At first place location structure on the steel sheet, place the accurate assigned position of shaped steel stiffening rib through location structure, adopt reasonable automatic weld technique to be connected stiffening rib and wallboard again, carry out enclosure material's complex at the inside and outside of wallboard at last, accomplish the production integration of wallboard. The invention realizes the accurate positioning of the stiffening rib in the wallboard processing process by adopting the positioning structure, can greatly increase the yield of the wallboard production, can reduce the processing error of the wallboard by a reasonable stiffening rib welding mode, reduces the internal residual stress of the wallboard, can improve the construction efficiency by integrating the wallboard in a factory, enhances the safety of the wallboard in the installation process, has low comprehensive cost, simple structure and convenient installation, and can be widely applied to the box plate assembly type steel structure.

Description

Box plate assembly type steel structure integrated wallboard and production process
Technical Field
The invention relates to the field of building structure engineering, mainly relates to a box plate assembly type steel structure integrated wallboard and a production process, and particularly can be applied to assembly type steel structure buildings.
Background
At present, the fabricated steel structure has the advantages of high strength, high construction speed, flexible building space arrangement, low foundation cost and the like, and can realize field dry operation. The box plate type steel structure is a structural form which is provided for the building field based on a ribbed plate structural form of a ship superstructure, and is a box type structure which directly uses ribbed steel plates as a bearing wall and a floor slab. As a novel structural system, the construction mode has the characteristics of factory production and field installation.
This structural style's ribbed steel sheet shear force wall compares with traditional anti side force system, welds vertical stiffening rib as the main atress component of structure on the steel sheet surface, comes supporting steel plate and with the steel sheet combined work through vertical stiffening rib, bears level and vertical load, and its preparation is lower with the construction degree of difficulty, reduces the wall thickness, increases the building usable floor area, also can effectively reduce the structure dead weight simultaneously, reduces earthquake response. However, the wall plate and the stiffening rib are welded manually, which may cause larger construction error, generate larger additional force and internal residual stress, and affect the bearing performance of the structure. Therefore, an integrated wallboard production process which can improve welding quality, reduce construction errors, complete prefabrication in a factory and integrate a structure and an auxiliary structure is needed to be provided, and the integrated wallboard production process is widely applied to a box plate type steel structure system.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a box plate assembly type steel structure integrated wallboard and a production process, which can realize the accurate positioning of stiffening ribs in the wallboard processing process, greatly increase the yield of wallboard production, enhance the safety performance of components, have low comprehensive cost, simple structure and convenient installation, can be prefabricated and finished in a factory and can be widely applied to box plate assembly type steel structures.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the invention firstly provides a box plate assembly type steel structure integrated wallboard, which comprises:
a steel plate as a main body of the integrated wall panel;
the vertical stiffening ribs are at least arranged on the inner side of the steel plate and comprise main stiffening ribs and secondary stiffening ribs, the main stiffening ribs are arranged in the middle of the steel plate, the secondary stiffening ribs are uniformly distributed on two sides of the main stiffening ribs according to a certain interval, and the vertical stiffening ribs are accurately positioned on the steel plate through positioning blocks and welded on the steel plate;
the positioning blocks are arranged on one side or two sides of the vertical stiffening ribs along the arrangement positions and the directions of the vertical stiffening ribs on the steel plate and used for accurately positioning the vertical stiffening ribs when the vertical stiffening ribs are constructed on the steel plate;
the wallboard enclosure system comprises an inner enclosure system and an outer enclosure system.
The invention also provides a box plate assembly type steel structure integrated wallboard, which comprises:
a steel plate as a main body of the integrated wall panel;
the female clamping groove is a groove hole formed in the steel plate along the arrangement position and the arrangement direction of the vertical stiffening rib according to the design requirement;
the vertical stiffening ribs are at least arranged on the inner side of the steel plate and comprise main stiffening ribs and secondary stiffening ribs, the main stiffening ribs are arranged in the middle of the steel plate, and the secondary stiffening ribs are uniformly distributed on two sides of the main stiffening ribs at certain intervals;
the auxiliary clamping strip is a clamping part formed on one side of the vertical stiffening rib connected with the steel plate by cutting the vertical stiffening rib, the position of the auxiliary clamping strip corresponds to the main clamping groove, and the size of the auxiliary clamping strip is consistent with or slightly smaller than that of the main clamping groove;
the wallboard enclosure system comprises an inner enclosure system and an outer enclosure system.
In one embodiment, the positioning block is made by cutting a steel plate and fixed on the steel plate at intervals by spot welding or bonding with an adhesive.
In one embodiment, the vertical stiffeners are arranged on the inner side and the outer side of the steel plate, and the daughter cards on the vertical stiffeners on two sides are arranged in a staggered mode.
In one embodiment, the primary stiffeners are T-shaped stiffeners and the secondary stiffeners are T-shaped stiffeners, L-shaped stiffeners or channel stiffeners arranged vertically through the steel plate.
In one embodiment, the vertical stiffeners are welded to the steel plate using automated welding techniques and in intermittent welds.
In one embodiment, the inner side enclosure system comprises an inner wall antirust coating, a heat preservation and insulation layer and a protective layer from inside to outside, the heat preservation and insulation layer and the protective layer are only attached between the secondary stiffening ribs and wrap the secondary stiffening ribs, and the heat preservation and insulation layer and the protective layer are disconnected at the primary stiffening ribs;
the light steel keel is transversely arranged outside the protective layer, the height of the light steel keel is smaller than that of the main stiffening rib, and two ends of the light steel keel are welded and fixed with the main stiffening rib;
and a gap is formed between the light steel keel and the protective layer between the secondary stiffening ribs, and equipment is arranged in the gap or a pipeline is arranged in the gap in a penetrating way and is fixed on the light steel keel.
In one embodiment, the outside containment system includes an exterior rust inhibiting coating, a water barrier, an exterior paint, or a finish.
The invention also provides a production process of the box plate assembly type steel structure integrated wallboard, which comprises the following steps:
the method comprises the following steps: manufacturing positioning blocks, namely cutting a steel plate to form a plurality of positioning blocks;
step two: constructing positioning blocks on the steel plate, arranging the positioning blocks at certain intervals along the welding positions and directions of the main stiffening ribs and the secondary stiffening ribs on the steel plate, and connecting the positioning blocks and the steel plate in a spot welding or bonding mode by using a bonding agent;
step three: assembling the main stiffening rib and the secondary stiffening rib, and tightly abutting one side or two sides of the main stiffening rib and the secondary stiffening rib against the positioning block;
step four: welding the main stiffening rib and the secondary stiffening rib on the steel plate, wherein an automatic welding technology is adopted during welding, and feeding of the welding wire and movement of the welding wire along the direction of a welding seam are automatically completed by a welding machine;
step five: constructing a wallboard enclosure system:
constructing an inner side enclosure system: cleaning the steel plates, derusting the surfaces of the steel plates, coating an inner wall antirust coating, then pasting heat-insulating layers on the steel plates on the two sides of the main stiffening ribs and the secondary stiffening ribs, attaching protective layers, and disconnecting the heat-insulating layers and the protective layers at the main stiffening ribs;
constructing an outside enclosure system: cleaning the steel plate, removing rust on the surface of the steel plate, coating an outer wall antirust coating, then coating a waterproof layer, finally constructing an outer wall coating or a decorative surface layer, and finally finishing the compounding of the inner side wall protective layer and the outer side wall protective layer of the wallboard to obtain a finished integrated wallboard.
The invention further provides a production process of the box plate assembly type steel structure integrated wallboard, which comprises the following steps:
the method comprises the following steps: slotting the steel plate, namely slotting the steel plate, and arranging female clamping grooves at welding positions of the surface of the steel plate and the vertical stiffening ribs at certain intervals;
step two: performing secondary processing on the vertical stiffening ribs, performing positioning cutting on the main stiffening ribs and the secondary stiffening ribs by using a profile steel cutting machine, and cutting sub-clamping strips with the size and the depth consistent with those of the female clamping grooves on the vertical stiffening ribs to finish the secondary processing of the vertical stiffening ribs;
step three: assembling the main stiffening ribs and the secondary stiffening ribs, aligning the sub clamping strips on the main stiffening ribs and the secondary stiffening ribs with the female clamping grooves on the steel plate one by one, and clamping the sub clamping strips into the female clamping grooves;
step four: welding the main stiffening rib and the secondary stiffening rib on the steel plate, wherein an automatic welding technology is adopted during welding, and feeding of the welding wire and movement of the welding wire along the direction of a welding seam are automatically completed by a welding machine;
step five: constructing a wallboard enclosure system:
constructing an inner side enclosure system: cleaning the steel plates, derusting the surfaces of the steel plates, coating an inner wall antirust coating, then pasting heat-insulating layers on the steel plates on the two sides of the main stiffening ribs and the secondary stiffening ribs, attaching protective layers, and disconnecting the heat-insulating layers and the protective layers at the main stiffening ribs;
constructing an outside enclosure system: cleaning the steel plate, removing rust on the surface of the steel plate, coating an outer wall antirust coating, then coating a waterproof layer, finally constructing an outer wall coating or a decorative surface layer, and finally finishing the compounding of the inner side wall protective layer and the outer side wall protective layer of the wallboard to obtain a finished integrated wallboard.
Compared with the prior art, the invention has the beneficial effects that: the box plate assembly type steel structure integrated wallboard and the production process provided by the invention can realize the accurate positioning of the stiffening rib in the wallboard processing process, can greatly increase the yield of wallboard production, can reduce the processing error of the wallboard and reduce the inherent residual stress of the wallboard through a reasonable stiffening rib welding mode, can improve the construction efficiency by integrating the wallboard in a factory, can enhance the safety of the wallboard in the installation process, have low comprehensive cost, simple structure and convenient installation, and can be widely applied to box plate assembly type steel structures. Specifically, at least the following practical effects are obtained:
(1) the steel plate and the stiffening ribs are positioned through the positioning structure, so that the precise positioning of the stiffening ribs in the wallboard processing process can be realized, the construction precision is improved, the construction error is reduced, the yield of the wallboard production is increased, the connection performance of the stiffening ribs and the steel plate wall is further improved, and the bearing capacity of the ribbed steel plate wall is ensured;
(2) after accurate positioning, reasonable automatic welding technology is adopted for connection, and in a discontinuous welding mode, the production efficiency is improved, part of welding stress is released, the welding deformation is reduced, welding materials are saved on the premise that the use strength requirement can be met, and the appearance and the internal quality of a welding part can be improved by adopting the automatic welding technology for welding;
(3) the position of the appointed stiffening rib can be restrained by the positioning block in the accurate positioning mode, the method does not damage the section of the steel plate, secondary processing is not needed to be carried out on the stiffening rib, the manufacturing cost is reduced, and the time is saved; the form of slotting on the steel plate can be selected, a clamping slotted hole is formed in the steel plate, secondary processing is carried out on the stiffening rib, the stiffening rib is manufactured into the stiffening rib with the clamping strip corresponding to the clamping slotted hole, the wallboard and the vertical stiffening rib are accurately positioned and connected through clamping of the primary and secondary clamping grooves, the primary and secondary clamping grooves play a role in positioning, meanwhile, the steel plate and the stiffening rib can be connected more firmly, and the integral shearing resistance is improved;
(4) the integrated wallboard consisting of the ribbed steel plate wall and the composite enclosure system integrates the structure, fire prevention, heat preservation, heat insulation, water prevention, equipment pipelines and decoration, can realize intensive and grouped production and manufacture in a factory, ensures the quality of components and improves the assembly efficiency;
(5) the box plate type steel structure formed by the ribbed steel plates has the advantages of light weight, high strength, material saving and short construction period.
The features and advantages of the present invention will be described in detail by way of example with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, shall fall within the scope covered by the technical contents disclosed in the present invention.
FIG. 1 is a schematic overall structure diagram of a general embodiment of the present invention;
FIG. 2 is a schematic illustration of the splicing of stiffeners according to one embodiment of the present invention 1;
FIG. 3 is a schematic view of the welding of a steel plate and a stiffener according to embodiment 1 of the present invention
FIG. 4 is a schematic view of steel plate notching according to one embodiment 2 of the present invention;
FIG. 5 is a schematic illustration of rib splicing according to an embodiment 2 of the present invention;
FIG. 6 is a schematic diagram of a steel plate double-sided splicing stiffener according to an embodiment 2 of the present invention;
FIG. 7 is a schematic view showing the welding of a steel plate and a stiffener according to example 2 of the present invention;
fig. 8 is a schematic view of an outside wall panel containment system according to a general embodiment of the present invention.
In the figure: 1-steel plate, 2-secondary stiffening ribs, 3-main stiffening ribs, 4 a-female clamping grooves, 4 b-secondary clamping strips, 5-positioning blocks, 6-welding seams, 7-inner wall antirust coating, 8-heat insulation layer, 9-protective layer, 10-pipeline, 11-light steel keel, 12-outer wall antirust coating, 13-waterproof layer, 14-coating or decorative surface layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are described in further detail below with reference to the embodiments and the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
It is to be understood that the terms "comprises/comprising," "consisting of … …," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product, apparatus, process, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product, apparatus, process, or method if desired. Without further limitation, an element defined by the phrases "comprising/including … …," "consisting of … …," or "comprising" does not exclude the presence of other like elements in a product, device, process, or method that comprises the element.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It will be further understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present invention and to simplify description, and do not indicate or imply that the referenced device, component, or structure must have a particular orientation, be constructed in a particular orientation, or be operated in a particular manner, and should not be construed as limiting the present invention.
The technical solution of the present invention is specifically explained below with reference to the accompanying drawings.
Referring to fig. 1 to 3, the present invention first provides a box and plate assembly type steel structure integrated wallboard, comprising:
the steel plate 1 is used as a main body of the integrated wallboard;
the vertical stiffening ribs are at least arranged on the inner side of the steel plate 1 and comprise main stiffening ribs 3 and secondary stiffening ribs 2, the main stiffening ribs 3 are arranged in the middle of the steel plate 1, the secondary stiffening ribs 2 are uniformly distributed on two sides of the main stiffening ribs 3 according to a certain distance, and the vertical stiffening ribs are accurately positioned on the steel plate through the positioning blocks 5 and are welded on the steel plate by indirect welding;
the positioning blocks 5 are arranged on one side or two sides of the vertical stiffening rib along the arrangement position and the direction of the vertical stiffening rib on the steel plate and are used for accurately positioning the vertical stiffening rib when the vertical stiffening rib is constructed on the steel plate;
the wallboard enclosure system comprises an inner enclosure system and an outer enclosure system.
The integrated wallboard designed by the invention adopts the positioning welding and the automatic welding method, can realize the accurate positioning of the stiffening rib in the wallboard processing process, thereby reducing the construction error, not generating larger additional force and internal residual stress to influence the structural bearing performance, reducing the processing error of the wallboard, improving the safety performance of components, simultaneously improving the construction efficiency, reducing the installation difficulty, and being widely popularized and applied in box plate assembly type steel structure buildings.
The positioning blocks 5 are made by cutting steel plates, referring to fig. 2-3, the positioning blocks 5 are arranged at certain intervals along the welding direction of the steel plate 1, the secondary stiffening ribs 2 and the main stiffening ribs 3, the positioning blocks 5 are connected with the steel plate 1 by spot welding or using a binder, discontinuous fillet welds 6 can be adopted when the stiffening ribs are welded with the steel plate, and the welds are required to avoid the arrangement area of the positioning blocks;
as shown in fig. 1 and 2, the primary stiffener 3 is a T-shaped stiffener, and the secondary stiffeners are T-shaped stiffeners 2a, channel-shaped stiffeners 2b, or L-shaped stiffeners 2c, and are arranged vertically throughout the steel plate. The T-shaped stiffening rib can provide larger lateral stiffness as a main stiffening rib, and the cross section selected by the secondary stiffening rib is more flexible.
Referring to fig. 1 again, the inside enclosure system includes an inner wall antirust coating 7, a heat insulation layer 8, and a protective layer 9 from inside to outside, and the heat insulation layer 8 and the protective layer 9 are only attached between the secondary stiffening ribs 2 and wrap the secondary stiffening ribs 2, and are disconnected at the primary stiffening ribs 3. The steel plate 1 is provided with the main stiffening rib 3 and the secondary stiffening rib 2, and the stiffening ribs change the buckling instability form of the steel plate into a plurality of half waves along the longitudinal direction, so that the rigidity and the stability of the steel plate are improved, and the steel plate is an important means for ensuring that the plate is not unstable. The main stiffening ribs and the secondary stiffening ribs are arranged in a matched mode, so that the structural performance is improved, meanwhile, the weight of the wallboard is not increased excessively, and the influence of the earthquake action is reduced. Because the height of the section of the main stiffening rib 3 is larger, if the heat-insulating layer 8 and the protective layer 9 are coated in a full-covering mode, the thickness of the whole integrated wall plate is greatly increased, and the light steel keel, installation equipment and pipelines are not beneficial to being continuously arranged, the heat-insulating layer 8 and the protective layer 9 only coat the area where the secondary stiffening rib 2 is located, the main stiffening rib 3 is disconnected, namely the main stiffening rib 3 is exposed, the area where the secondary stiffening rib 2 is located is convenient for continuously arranging the light steel keel 11, and the light steel keel 11 is provided with a fixed position, namely is welded on a web plate of the main stiffening rib 3.
The light steel keel 11 is transversely arranged outside the protective layer 9, the height of the light steel keel 11 is smaller than that of the main stiffening rib 3, two ends of the light steel keel 11 are welded and fixed with the main stiffening rib 3, the main stiffening rib 3 is a T-shaped stiffening rib, and two ends of the light steel keel 11 are specifically welded on a web plate of the T-shaped stiffening rib.
A gap is formed between the light steel skeleton 11 and the protective layer 9 between the secondary stiffeners 2, in which gap equipment is arranged, or a pipeline 10 is inserted through the gap and fixed to the light steel skeleton 11 by means of a snap fit.
With continued reference to fig. 8, the outer side enclosure system comprises an outer wall antirust coating 12, a waterproof layer 13 and an outer wall coating or decorative surface layer 14, and the purposes of improving the durability of the components and preventing the wall body from being affected with damp are achieved through the outer side enclosure system.
The integrated wallboard consisting of the ribbed steel plate wall and the composite enclosure system integrates the structure with fire prevention, heat preservation, heat insulation, water prevention, equipment pipelines and decoration, can realize intensive and grouped production and manufacture in a factory, ensures the quality of components and improves the assembly efficiency.
Referring again to fig. 4-7, the present invention also provides another box-to-board assembly type steel structural integrated wall panel, comprising:
the steel plate 1 is used as a main body of the integrated wallboard;
the female clamping groove 4a is a slotted hole which is formed in the steel plate 1 along the arrangement position and the direction of the vertical stiffening rib according to the design requirement, and the slotted hole is mainly used as a positioning device for welding the stiffening rib at the later stage;
the vertical stiffening ribs are at least arranged on the inner side of the steel plate and comprise main stiffening ribs 3 and secondary stiffening ribs 2, the main stiffening ribs are arranged in the middle of the steel plate, and the secondary stiffening ribs are uniformly distributed on two sides of the main stiffening ribs at certain intervals;
the auxiliary clamping strip 4b is a clamping part formed on one side of the vertical stiffening rib connected with the steel plate by cutting the vertical stiffening rib, the position of the auxiliary clamping strip 4b corresponds to the main clamping groove 4a, the size of the auxiliary clamping strip is consistent with that of the main clamping groove or slightly smaller than that of the main clamping groove, and the vertical stiffening rib is accurately positioned on the steel plate by clamping and matching the auxiliary clamping strip and the main clamping groove and welded on the steel plate by indirect welding;
the wallboard enclosure system comprises an inner enclosure system and an outer enclosure system.
Referring to fig. 5, the T-shaped stiffening rib 2a is processed, and the sub-clamping strip 4b is aligned and clamped with the corresponding main clamping groove 4a of the steel plate to form a sub-sub clamping structure; similarly, the groove-shaped stiffening rib 2b is made of channel steel, and the sub-clamping strips are arranged at the end parts of the two groove legs and are connected with and clamped with the steel plate groove holes; the L-shaped stiffening rib 2c is made of angle steel, the L-shaped stiffening rib is processed to form a sub clamping strip 4b, and the sub clamping strip of the L-shaped stiffening rib is aligned with the female clamping groove 4a at the corresponding position of the steel plate to be clamped.
As a specific improvement, the width of the cross section of the stiffening rib sub-clamping strip 4b is consistent with that of a stiffening rib web plate, so that the cutting difficulty is reduced, and the processing efficiency is improved.
Referring to fig. 6, when all need to arrange the stiffening rib at steel sheet wall two sides, vertical stiffening rib arranges in the inboard and the outside of steel sheet simultaneously, and the position of son card strip 4b and female card groove 4a on the vertical stiffening rib of steel sheet 1 two sides should stagger the arrangement to avoid causing the steel sheet to influence steel sheet intensity at the same position trompil in steel sheet two sides.
The production process of the box plate assembly type steel structure integrated wallboard of the first embodiment of the invention comprises the following steps:
the method comprises the following steps: manufacturing positioning blocks, namely cutting a steel plate to form a plurality of positioning blocks 5;
step two: constructing positioning blocks on the steel plate, arranging the positioning blocks 5 at certain intervals along the welding positions and directions of the main stiffening ribs 3 and the secondary stiffening ribs 2 on the steel plate 1, and connecting the positioning blocks 5 with the steel plate 1 in a spot welding or bonding mode by using a bonding agent;
step three: assembling the main stiffening rib 3 and the secondary stiffening rib 2, and tightly abutting one side or two sides of the main stiffening rib and the secondary stiffening rib against the positioning block;
step four: welding the main stiffening rib 3 and the secondary stiffening rib 2 on the steel plate 1, wherein an automatic welding technology is adopted during welding, and feeding of welding wires and movement of the welding wires along the direction of a welding seam are automatically completed by a welding machine; taking submerged arc automatic welding as an example, spreading granular flux on a welding seam before welding, wherein the thickness of the granular flux is about 4-6 cm; during welding, the welding wire is continuously fed into an electric arc area and moves along the welding direction, a welding seam 6 is formed after cooling, and the feeding of the welding wire and the movement of the welding wire along the welding seam direction in the submerged arc welding process are automatically completed by a welding machine;
step five: constructing a wallboard enclosure system:
constructing an inner side enclosure system: cleaning a steel plate, cleaning the surface, cleaning and leveling the surface, removing rust on the surface of the steel plate 1, coating an inner wall antirust coating 7, sticking a heat-insulating layer 8 on the steel plate and the secondary stiffening rib at two sides of the main stiffening rib 3, attaching a protective layer 9, only wrapping the secondary stiffening rib 2 by the heat-insulating layer 8 and the protective layer 9, disconnecting the main stiffening rib 3, and finally arranging a transverse light steel keel 11 on the protective layer 9, wherein two ends of the light steel keel 11 are welded with a web plate of the main stiffening rib 3, as shown in fig. 1;
constructing an outside enclosure system: cleaning the steel plate, removing rust on the surface of the steel plate, coating an outer wall antirust coating 12, then coating a waterproof layer 13, and finally constructing an outer wall coating or a decorative surface layer 14, as shown in fig. 8, finally completing the compounding of the inner side wall protective layer and the outer side wall protective layer of the wallboard, and obtaining a finished product of the integrated wallboard.
The production process of the box plate assembly type steel structure integrated wallboard of the second embodiment of the invention comprises the following steps:
the method comprises the following steps: slotting the steel plate, namely slotting the steel plate 1 by an ion slotting, laser slotting or water slotting method, arranging female slot grooves 4a at the welding positions of the surface of the steel plate 1 and the vertical stiffening ribs according to a certain distance, wherein the size of the slot hole needs to be comprehensively considered by combining the size of a web plate of the stiffening rib, the thickness of the steel plate and other factors, the size of the slot hole is not too large, and the depth of the slot hole is not too deep;
step two: performing secondary processing on the vertical stiffening rib, performing positioning cutting on the main stiffening rib 3 and the secondary stiffening rib 2 by using a section steel cutting machine, performing 90-degree vertical cutting, cutting a sub-clamping strip 4b with the size and the depth consistent with those of the female clamping groove 4a on the vertical stiffening rib, polishing and trimming the edge to finish the secondary processing of the vertical stiffening rib;
step three: assembling the main stiffening ribs and the secondary stiffening ribs, aligning the sub clamping strips 4b on the main stiffening ribs and the secondary stiffening ribs with the female clamping grooves 4a on the steel plate one by one, and clamping the sub clamping strips into the female clamping grooves;
step four: welding the main stiffening rib and the secondary stiffening rib on the steel plate by the same welding process;
step five: the construction process of the wall plate enclosure system is the same as the above.
With reference to fig. 1 to 8, the welding method adopts intermittent welding to form a welding seam 6; the distance between the transverse light steel keel 11 and the steel plate 1 is equal to the sum of the stacking heights of the secondary stiffening rib 2, the inner wall antirust coating 7, the heat insulation layer 8 and the protective layer 9, so that the light steel keel 11 can be just in surface contact with the protective layer 9 on the secondary stiffening rib; the height of the web plate of the main stiffening rib 3 is at least larger than the distance between the light steel keel 11 and the steel plate 1, so that the light steel keel 11 can be welded on the web plate of the main stiffening rib 3; the space between the light steel keel 11 and the steel plate 1 can be used for arranging equipment and pipelines 10, and the equipment and the pipelines 10 can be fixed on the light steel keel 11 through bolts, buckles or other modes.
When the stiffening ribs and the steel plate are positioned and assembled, the positioning blocks can be selected for the positioning structure to restrict the positions of the designated stiffening ribs, the method can not damage the cross section of the steel plate, and the stiffening ribs do not need to be subjected to secondary processing, so that the manufacturing cost is reduced, and the time is saved; the positioning structure can also be selectively used in the form of steel plate grooving, a clamping groove hole is formed in the steel plate, secondary processing is carried out on the stiffening rib, the stiffening rib is manufactured into a stiffening rib with a belt clamping strip corresponding to the clamping groove hole, the wallboard and the vertical stiffening rib are accurately positioned and connected through clamping of the primary and secondary clamping grooves, the primary and secondary clamping grooves can enable the steel plate to be more firmly connected with the stiffening rib when playing a positioning role, and the overall shearing resistance is improved.
In summary, the invention provides a production process of a box plate assembly type steel structure integrated wallboard, which can realize the effects of reducing construction errors, improving construction efficiency and enhancing the safety performance of components, has simple structure and convenient installation, and can be applied to a box plate assembly type steel structure after the completion of factory prefabrication.
Thus, it should be understood by those skilled in the art that while exemplary embodiments of the present invention have been illustrated and described in detail herein, many other variations and modifications can be made, which are consistent with the principles of the invention, from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. A box plate assembled steel structure integrated wallboard comprises:
a steel plate as a main body of the integrated wall panel;
the vertical stiffening ribs are at least arranged on the inner side of the steel plate and comprise main stiffening ribs and secondary stiffening ribs, the main stiffening ribs are arranged in the middle of the steel plate, the secondary stiffening ribs are uniformly distributed on two sides of the main stiffening ribs according to a certain interval, and the vertical stiffening ribs are accurately positioned on the steel plate through positioning blocks and welded on the steel plate;
the positioning blocks are arranged on one side or two sides of the vertical stiffening ribs along the arrangement positions and the directions of the vertical stiffening ribs on the steel plate and used for accurately positioning the vertical stiffening ribs when the vertical stiffening ribs are constructed on the steel plate;
the wallboard enclosure system comprises an inner enclosure system and an outer enclosure system.
2. A box plate assembled steel structure integrated wallboard comprises:
a steel plate as a main body of the integrated wall panel;
the female clamping groove is a groove hole formed in the steel plate along the arrangement position and the arrangement direction of the vertical stiffening rib according to the design requirement;
the vertical stiffening ribs are at least arranged on the inner side of the steel plate and comprise main stiffening ribs and secondary stiffening ribs, the main stiffening ribs are arranged in the middle of the steel plate, and the secondary stiffening ribs are uniformly distributed on two sides of the main stiffening ribs at certain intervals;
the auxiliary clamping strip is a clamping part formed on one side of the vertical stiffening rib connected with the steel plate by cutting the vertical stiffening rib, the position of the auxiliary clamping strip corresponds to the main clamping groove, and the size of the auxiliary clamping strip is consistent with or slightly smaller than that of the main clamping groove;
the wallboard enclosure system comprises an inner enclosure system and an outer enclosure system.
3. The boxboard assembly steel structural integrated wallboard of claim 1, wherein:
the positioning blocks are made by cutting a steel plate and are fixed on the steel plate at intervals in a spot welding mode or a bonding mode by using a bonding agent.
4. The boxboard assembly steel structural integrated wallboard of claim 2, wherein:
the vertical stiffening ribs are arranged on the inner side and the outer side of the steel plate, and the sub-clamping strips on the vertical stiffening ribs on the two sides are arranged in a staggered mode.
5. A boxboard assembly steel structural integrated wallboard according to claim 1 or 2, characterized in that:
the main stiffening ribs are T-shaped stiffening ribs, the secondary stiffening ribs are T-shaped stiffening ribs, L-shaped stiffening ribs or groove-shaped stiffening ribs, and the steel plates are vertically arranged in a through length mode.
6. A boxboard assembly steel structural integrated wallboard according to claim 1 or 2, characterized in that:
the vertical stiffening ribs are welded on the steel plate in an intermittent welding mode by adopting an automatic welding technology.
7. A boxboard assembly steel structural integrated wallboard according to claim 1 or 2, characterized in that:
the inner side enclosure system comprises an inner wall antirust coating, a heat preservation and insulation layer and a protective layer from inside to outside, the heat preservation and insulation layer and the protective layer are only attached between the secondary stiffening ribs and wrap the secondary stiffening ribs, and the inner side enclosure system is disconnected at the primary stiffening ribs;
the light steel keel is transversely arranged outside the protective layer, the height of the light steel keel is smaller than that of the main stiffening rib, and two ends of the light steel keel are welded and fixed with the main stiffening rib;
and a gap is formed between the light steel keel and the protective layer between the secondary stiffening ribs, and equipment is arranged in the gap or a pipeline is arranged in the gap in a penetrating way and is fixed on the light steel keel.
8. A boxboard assembly steel structural integrated wallboard according to claim 1 or 2, characterized in that:
the outer side enclosure system comprises an outer wall antirust coating, a waterproof layer, an outer wall coating or a decorative surface layer.
9. A process for producing a boxboard assembly steel structural integrated wallboard according to any one of claims 1, 3, 5-8, comprising the steps of:
the method comprises the following steps: manufacturing positioning blocks, namely cutting a steel plate to form a plurality of positioning blocks;
step two: constructing positioning blocks on the steel plate, arranging the positioning blocks at certain intervals along the welding positions and directions of the main stiffening ribs and the secondary stiffening ribs on the steel plate, and connecting the positioning blocks and the steel plate in a spot welding or bonding mode by using a bonding agent;
step three: assembling the main stiffening rib and the secondary stiffening rib, and tightly abutting one side or two sides of the main stiffening rib and the secondary stiffening rib against the positioning block;
step four: welding the main stiffening rib and the secondary stiffening rib on the steel plate, wherein an automatic welding technology is adopted during welding, and feeding of the welding wire and movement of the welding wire along the direction of a welding seam are automatically completed by a welding machine;
step five: constructing a wallboard enclosure system:
constructing an inner side enclosure system: cleaning the steel plates, derusting the surfaces of the steel plates, coating an inner wall antirust coating, then pasting heat-insulating layers on the steel plates on the two sides of the main stiffening ribs and the secondary stiffening ribs, attaching protective layers, and disconnecting the heat-insulating layers and the protective layers at the main stiffening ribs;
constructing an outside enclosure system: cleaning the steel plate, removing rust on the surface of the steel plate, coating an outer wall antirust coating, then coating a waterproof layer, finally constructing an outer wall coating or a decorative surface layer, and finally finishing the compounding of the inner side wall protective layer and the outer side wall protective layer of the wallboard to obtain a finished integrated wallboard.
10. A process for producing a boxboard assembly steel structural integrated wallboard according to any one of claims 2, 4, 5-8, comprising the steps of:
the method comprises the following steps: slotting the steel plate, namely slotting the steel plate, and arranging female clamping grooves at welding positions of the surface of the steel plate and the vertical stiffening ribs at certain intervals;
step two: performing secondary processing on the vertical stiffening ribs, performing positioning cutting on the main stiffening ribs and the secondary stiffening ribs by using a profile steel cutting machine, and cutting sub-clamping strips with the size and the depth consistent with those of the female clamping grooves on the vertical stiffening ribs to finish the secondary processing of the vertical stiffening ribs;
step three: assembling the main stiffening ribs and the secondary stiffening ribs, aligning the sub clamping strips on the main stiffening ribs and the secondary stiffening ribs with the female clamping grooves on the steel plate one by one, and clamping the sub clamping strips into the female clamping grooves;
step four: welding the main stiffening rib and the secondary stiffening rib on the steel plate, wherein an automatic welding technology is adopted during welding, and feeding of the welding wire and movement of the welding wire along the direction of a welding seam are automatically completed by a welding machine;
step five: constructing a wallboard enclosure system:
constructing an inner side enclosure system: cleaning the steel plates, derusting the surfaces of the steel plates, coating an inner wall antirust coating, then pasting heat-insulating layers on the steel plates on the two sides of the main stiffening ribs and the secondary stiffening ribs, attaching protective layers, and disconnecting the heat-insulating layers and the protective layers at the main stiffening ribs;
constructing an outside enclosure system: cleaning the steel plate, removing rust on the surface of the steel plate, coating an outer wall antirust coating, then coating a waterproof layer, finally constructing an outer wall coating or a decorative surface layer, and finally finishing the compounding of the inner side wall protective layer and the outer side wall protective layer of the wallboard to obtain a finished integrated wallboard.
CN202110574724.7A 2021-05-26 2021-05-26 Box plate assembly type steel structure integrated wallboard and production process Active CN113026995B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110574724.7A CN113026995B (en) 2021-05-26 2021-05-26 Box plate assembly type steel structure integrated wallboard and production process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110574724.7A CN113026995B (en) 2021-05-26 2021-05-26 Box plate assembly type steel structure integrated wallboard and production process

Publications (2)

Publication Number Publication Date
CN113026995A true CN113026995A (en) 2021-06-25
CN113026995B CN113026995B (en) 2021-09-03

Family

ID=76455848

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110574724.7A Active CN113026995B (en) 2021-05-26 2021-05-26 Box plate assembly type steel structure integrated wallboard and production process

Country Status (1)

Country Link
CN (1) CN113026995B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114232842A (en) * 2022-01-10 2022-03-25 陆昊磊 Steel construction building wall body module
CN114934621A (en) * 2022-07-21 2022-08-23 中国船舶重工集团国际工程有限公司 Composite floor system for box plate assembly type building and installation method thereof
CN115075425A (en) * 2022-07-21 2022-09-20 中国船舶重工集团国际工程有限公司 Stud welding and box plate combined assembly type steel structure building unit and construction method
CN116181128A (en) * 2023-04-26 2023-05-30 中国船舶重工集团国际工程有限公司 Box board assembled mobile shielding room and installation method thereof
CN117468733A (en) * 2023-12-27 2024-01-30 中国建筑设计研究院有限公司 Auxiliary connection tool for box plate type wall body and assembly method of box plate type wall body

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040020443A (en) * 2002-08-30 2004-03-09 주식회사 포스코 Rib-reinforced steel shear wall system with slits
CN101429815A (en) * 2003-12-15 2009-05-13 邱则有 Formwork component
CN106013506A (en) * 2016-06-22 2016-10-12 杭州铁木辛柯钢结构设计有限公司 Anti-buckling steel plate seismic shear wall provided with stiffening ribs
CN206625402U (en) * 2016-09-30 2017-11-10 天津大学 A kind of side intersection of cracking is put more energy into profiled sheet shear wall
CN207228403U (en) * 2017-07-03 2018-04-13 浙江越宫钢结构有限公司 A kind of steel plate shear force wall plate equipped with ribbed stiffener
CN207829205U (en) * 2017-10-26 2018-09-07 中天建设集团浙江钢构有限公司 A kind of band ribbed stiffener list steel plate shear force wall building filling construction
CN109208784A (en) * 2018-10-15 2019-01-15 青岛理工大学 Shear wall
CN112081271A (en) * 2020-09-11 2020-12-15 河北润达石化工程建设有限公司 Assembled steel plate shear wall and construction method thereof
CN112681798A (en) * 2020-12-31 2021-04-20 西安建筑科技大学 End plate connecting node reinforcing structure and construction method thereof
CN112796411A (en) * 2021-03-23 2021-05-14 中国船舶重工集团国际工程有限公司 Box board assembled steel structure underground beam type conversion structure
CN112814225A (en) * 2020-12-22 2021-05-18 合肥工业大学 Plug-pull longitudinal rib type sound insulation steel-concrete combined shear wall and assembling method thereof

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040020443A (en) * 2002-08-30 2004-03-09 주식회사 포스코 Rib-reinforced steel shear wall system with slits
CN101429815A (en) * 2003-12-15 2009-05-13 邱则有 Formwork component
CN106013506A (en) * 2016-06-22 2016-10-12 杭州铁木辛柯钢结构设计有限公司 Anti-buckling steel plate seismic shear wall provided with stiffening ribs
CN206625402U (en) * 2016-09-30 2017-11-10 天津大学 A kind of side intersection of cracking is put more energy into profiled sheet shear wall
CN207228403U (en) * 2017-07-03 2018-04-13 浙江越宫钢结构有限公司 A kind of steel plate shear force wall plate equipped with ribbed stiffener
CN207829205U (en) * 2017-10-26 2018-09-07 中天建设集团浙江钢构有限公司 A kind of band ribbed stiffener list steel plate shear force wall building filling construction
CN109208784A (en) * 2018-10-15 2019-01-15 青岛理工大学 Shear wall
CN112081271A (en) * 2020-09-11 2020-12-15 河北润达石化工程建设有限公司 Assembled steel plate shear wall and construction method thereof
CN112814225A (en) * 2020-12-22 2021-05-18 合肥工业大学 Plug-pull longitudinal rib type sound insulation steel-concrete combined shear wall and assembling method thereof
CN112681798A (en) * 2020-12-31 2021-04-20 西安建筑科技大学 End plate connecting node reinforcing structure and construction method thereof
CN112796411A (en) * 2021-03-23 2021-05-14 中国船舶重工集团国际工程有限公司 Box board assembled steel structure underground beam type conversion structure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114232842A (en) * 2022-01-10 2022-03-25 陆昊磊 Steel construction building wall body module
CN114934621A (en) * 2022-07-21 2022-08-23 中国船舶重工集团国际工程有限公司 Composite floor system for box plate assembly type building and installation method thereof
CN115075425A (en) * 2022-07-21 2022-09-20 中国船舶重工集团国际工程有限公司 Stud welding and box plate combined assembly type steel structure building unit and construction method
CN116181128A (en) * 2023-04-26 2023-05-30 中国船舶重工集团国际工程有限公司 Box board assembled mobile shielding room and installation method thereof
CN116181128B (en) * 2023-04-26 2023-07-11 中国船舶重工集团国际工程有限公司 Box board assembled mobile shielding room and installation method thereof
CN117468733A (en) * 2023-12-27 2024-01-30 中国建筑设计研究院有限公司 Auxiliary connection tool for box plate type wall body and assembly method of box plate type wall body
CN117468733B (en) * 2023-12-27 2024-04-23 中国建筑设计研究院有限公司 Auxiliary connection tool for box plate type wall body and assembly method of box plate type wall body

Also Published As

Publication number Publication date
CN113026995B (en) 2021-09-03

Similar Documents

Publication Publication Date Title
CN113026995B (en) Box plate assembly type steel structure integrated wallboard and production process
CA2626838C (en) Method for manufacturing of cellular board, cellular board, method for producing cellular board element of steel plate strip, and production line
US7467469B2 (en) Modular housing system and method of manufacture
US20080295450A1 (en) Prefabricated wall panels and a method for manufacturing the same
WO1987002086A1 (en) Construction of large sandwich structures
CN214994585U (en) Steel construction wall body and modularization reinforced concrete integrated configuration building structure
CN112282121A (en) Prefabricated built-in corrugated steel plate reinforced concrete combined shear wall and construction process
CN216007578U (en) Profiled metal sheet roof gable node structure
CN214302358U (en) Be applied to nodal connection device of modularization steel construction shear force wall hidden column and roof beam
CN213868553U (en) Corrugated steel plate integrated wall structure
CN219548249U (en) Wall surface node structure of multilayer wall panel
KR20180050690A (en) Building Systems and Materials
AU2011253543B2 (en) System and Method for Manufacturing Cellular Board
CN218405853U (en) Piece connection structure and modularization building structure
CN110340622B (en) Processing method for special-shaped box corner column of reinforced layer of super high-rise building
CN220954307U (en) Steel beam fireproof plate connecting structure
CN213572576U (en) Common concrete prefabricated single-plate type composite floor splicing structure
CN217630887U (en) Be applied to assembled side fascia on roof
CN216157150U (en) Aluminum mould keel supporting structure
CN212271396U (en) Fast-assembling steel construction tie-beam
CN217580614U (en) Wallboard corner connecting piece and butt joint structure of wallboard corner connecting piece and wallboard
CN213897669U (en) Prefabricated built-in corrugated steel plate reinforced concrete combined shear wall
CN212271313U (en) Cavity steel plate shear wall and cavity buckling-restrained steel plate shear wall
CN216195695U (en) Assembled wood-concrete structure wallboard
RU2429929C2 (en) Manufacturing method of cellular plate, cellular plate, manufacturing method of cellular plate element from steel strip, and production line

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant