CN114211207A - Stainless steel air duct construction process - Google Patents
Stainless steel air duct construction process Download PDFInfo
- Publication number
- CN114211207A CN114211207A CN202111588715.XA CN202111588715A CN114211207A CN 114211207 A CN114211207 A CN 114211207A CN 202111588715 A CN202111588715 A CN 202111588715A CN 114211207 A CN114211207 A CN 114211207A
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- China
- Prior art keywords
- stainless steel
- air pipe
- air duct
- steel plate
- construction process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
Abstract
The invention belongs to the technical field of stainless steel air ducts, and particularly relates to a stainless steel air duct construction process, which comprises the following steps: s1: unfolding a stainless steel plate, placing the stainless steel plate on the surface of a workbench, and marking according to the specification and the size of a rectangular air pipe to be manufactured; s2: checking the size of the stainless steel plate after marking, and shearing the stainless steel plate by using mechanical scissors and manual scissors according to the shape of the marked line; s3: chamfering the stainless steel plate which is cut to manufacture the rectangular air pipe, and then making a seam; s4: then, connecting the stainless steel plates subjected to chamfering and seaming production in a welding mode, and finally folding the stainless steel plates into a required angle by using a square folding machine to complete the rectangular air pipe forming operation; the stainless steel rectangular air pipe is produced and processed according to the unified manufacturing method and the process, so that the sealing effect of the rectangular air pipe is improved, the service life of the rectangular air pipe is prolonged, and the oil smoke exhaust efficiency is improved greatly.
Description
Technical Field
The invention belongs to the technical field of stainless steel air ducts, and particularly relates to a stainless steel air duct construction process.
Background
The common stainless steel air pipe has two shapes of a round shape and a rectangular shape, under most conditions, the space occupied by the rectangular pipeline is larger than that of the round pipeline, the working efficiency of the stainless steel air pipe is greatly improved relative to the round pipe, and the stainless steel air pipe is widely applied to the fields of food processing, pharmaceutical products, electronic industry, shopping centers, aerospace manufacturing and the like.
The stainless steel air duct finished product has excellent physical and chemical properties such as corrosion resistance, heat resistance, high strength and the like, and is often applied to various process exhaust systems, solvent exhaust systems, organic exhaust systems, waste gas exhaust systems, outdoor parts of common exhaust systems, wet heat exhaust systems, smoke exhaust and dust removal systems and the like with high air tightness requirements.
In the prior art, a stainless steel rectangular air pipe is lack of a uniform manufacturing method and a uniform manufacturing process in the production and processing process, so that the quality of a finished stainless steel rectangular air pipe product cannot be guaranteed, the sealing effect of the stainless steel rectangular air pipe is not ideal, and the service life of the stainless steel rectangular air pipe and the efficiency of oil smoke discharge are reduced.
Therefore, the invention provides a stainless steel air duct construction process.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems that the quality of finished stainless steel rectangular air pipes cannot be guaranteed due to the lack of a uniform manufacturing method and a uniform manufacturing process in the production and processing process of stainless steel rectangular air pipes in the background art, the sealing effect of the stainless steel rectangular air pipes is not ideal, and the service life of the stainless steel rectangular air pipes and the efficiency of oil smoke discharge are reduced, the construction process of the stainless steel air pipes provided by the invention comprises the following steps:
s1: unfolding a stainless steel plate, placing the stainless steel plate on the surface of a workbench, and marking according to the specification and the size of a rectangular air pipe to be manufactured;
s2: checking the size of the stainless steel plate after marking, and shearing the stainless steel plate by using mechanical scissors and manual scissors according to the shape of the marked line;
s3: chamfering the stainless steel plate which is cut to manufacture the rectangular air pipe, and then making a seam;
s4: then, connecting the stainless steel plates subjected to chamfering and seaming production in a welding mode, and finally folding the stainless steel plates into a required angle by using a square folding machine to complete the rectangular air pipe forming operation;
s5: and (3) assembling the stainless steel rectangular air pipe and the manufactured square flange in a welding mode.
Preferably, in S1, the basic manner of scribing is as follows: the right-angle line, the perpendicular bisector, the parallel line, the angular bisector, the straight line bisector, the circle bisector, and the like, and the unfolding method preferably adopts the parallel line method, the radial line method, and the triangular line method.
Preferably, in S1, the drawing lines are drawn and developed according to different geometries and specifications of the drawing and the bulk air duct.
Preferably, in S2, the fixed type vibration shears are used to stabilize the steel plate by two hands, and the distance between the two hands and the knife edge is not less than 5cm, so that the force is uniform and appropriate.
Preferably, in S3, the tool used in the chamfering process is a chamfering machine or scissors.
Preferably, in S4, all the stainless steel ducts are connected by full automatic argon arc welding.
Preferably, in S4, the stainless steel air duct is folded such that the center line of the upper blade of the machine coincides with the center line of the lower mold.
Preferably, in S5, the square flange is formed by assembling and welding four stainless steel angle bars, and when scribing and blanking, the inner diameter of the welded flange is not smaller than the outer diameter of the air duct, and the flange is cut off by a shape steel cutting machine according to a line.
The invention has the following beneficial effects:
1. according to the stainless steel air duct construction process, the stainless steel rectangular air duct is produced and processed according to the unified manufacturing method and the unified manufacturing process, the sealing effect of the rectangular air duct is favorably improved, and the service life and the oil smoke exhaust efficiency of the rectangular air duct are greatly improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of the stainless steel air duct construction process of the present invention;
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in FIG. 1, the construction process of the stainless steel air duct of the present invention comprises the following steps:
s1: unfolding a stainless steel plate, placing the stainless steel plate on the surface of a workbench, and marking according to the specification and the size of a rectangular air pipe to be manufactured;
s2: checking the size of the stainless steel plate after marking, and shearing the stainless steel plate by using mechanical scissors and manual scissors according to the shape of the marked line;
s3: chamfering the stainless steel plate which is cut to manufacture the rectangular air pipe, and then making a seam;
s4: then, connecting the stainless steel plates subjected to chamfering and seaming production in a welding mode, and finally folding the stainless steel plates into a required angle by using a square folding machine to complete the rectangular air pipe forming operation;
s5: and (3) assembling the stainless steel rectangular air pipe and the manufactured square flange in a welding mode.
As an embodiment of the present invention, in S1, the basic mode of scribing includes: right-angle lines, perpendicular bisectors, parallel lines, angular bisectors, straight lines, circles and the like, and the unfolding method is preferably a parallel line method, a radial line method and a triangular line method; in the step S1, respectively carrying out scribing and unfolding according to different geometric shapes and specifications of the drawing and the bulk air duct; during the use, the staff is with the stainless steel panel flatly-spread of preparation rectangle tuber pipe on the workstation surface, adopts marking tool to rule the operation according to the geometric shape of design drawing and sample tuber pipe for the panel surface demonstrates a complete tuber pipe profile, when satisfying tuber pipe preparation operation requirement, has avoided the waste of panel, helps improving the utilization ratio of panel.
In the S2, two hands of the fixed type vibration shears are used to stabilize the steel plate, the distance between the two hands and the knife edge is not less than 5cm, and the force is uniform and appropriate; during the use, the stainless steel panel after marking off also must carry out the recheck of unloading before shearing, in addition will notice at the stainless steel panel shearing in-process, staff's hand is forbidden strictly to stretch into in the mechanical pressure plate space to the top rest is accurate to be placed any instrument article, when adjusting stainless steel panel shearing position, staff's foot is not allowed to be placed on the footboard, thereby has effectively guaranteed the personal safety of staff at the stainless steel panel shearing in-process, and then has improved the shearing efficiency of panel.
In an embodiment of the present invention, in S3, the tool used in the chamfering process is a chamfering machine or scissors; when the stainless steel plate chamfering machine is used, after stainless steel plates for manufacturing the rectangular air pipes are blanked, before a rolled opening, a worker needs to use the chamfering machine or the scissors to chamfer the stainless steel plates, and the chamfering shape is determined by the actual product shape.
In the S4, the stainless steel ducts are all connected by full automatic argon arc welding; when the stainless steel reinforcing frame is used, the thickness of a stainless steel plate for manufacturing the rectangular air pipe is 1.2mm, the welding limit of automatic argon arc is just reached, the welding line form is determined according to the structure and the welding method of the air pipe, longitudinal straight seam welding is adopted for manufacturing the rectangular air pipe, the rectangular air pipe is mainly used for oil smoke exhaust in a kitchen, dents and stupefied ribs are not allowed to appear on the inner wall of the rectangular air pipe, the length of the manufactured single-section rectangular air pipe cannot exceed 1200mm, an external welding reinforcing frame is required for reinforcing the pipe fittings and the elbow parts which exceed 1200mm, and the reinforcing frame is connected with the air pipe by intermittent argon arc welding.
In S4, the stainless steel duct is folded such that the center line of the upper blade of the machine coincides with the center line of the lower mold; when the stainless steel square folding machine is used, a worker draws a square folding line on the surface of a stainless steel plate welded by an argon arc welding connection method by using a marking tool, places the side of the square folding line drawn by the stainless steel plate on the square folding machine and places the side of the square folding line on the central line of a lower die, and when the square folding machine is used, the central line of a blade needs to be aligned with the central line of the lower die, the worker should keep a certain safety distance from the square folding machine in the square folding process, and the steel plate or a counter weight which is overturned is prevented from being damaged.
In an embodiment of the present invention, in S5, the square flange is formed by assembling and welding four stainless steel angle bars, and when scribing and blanking, the inner diameter of the welded flange is not smaller than the outer diameter of the air duct, and the flange is cut off by a shape steel cutting machine according to a line; when the welding platform is used, a worker straightens a square flange through blanking and then puts the square flange on a punch press to punch a rivet hole and a bolt hole, the hole distance is not larger than 150mm, punched angle steel is put on the welding platform to be welded, the square flange is required to be clamped according to dies of various specifications in the welding process, the length of the large side of a rectangular air pipe is less than or equal to 630mm, the specification of the flange required to be used is 30 x 3, the length of the large side of the rectangular air pipe is greater than 800mm and less than 1250mm, the specification of the flange required to be used is 30 x 4, the length of the large side of the rectangular air pipe is greater than 1600mm and less than 2500mm, the specification of the flange required to be used is 40 x 4, when the square flange is connected with the angle steel flange, a stainless steel air pipe with the wall thickness of 1.2mm can be turned over, and the flange is attached to the outer surface of the wall of the rectangular air pipe during spot welding.
The working principle is as follows: when the method is used, a worker lays a stainless steel plate for manufacturing the rectangular air pipe on the surface of a workbench, and a marking tool is adopted to perform marking operation according to a design drawing and the geometric shape of a sample air pipe, so that the surface of the plate presents a complete air pipe outline, the waste of the plate is avoided while the manufacturing and using requirements of the air pipe are met, the utilization rate of the plate is improved, the marked stainless steel plate must be rechecked before shearing, in addition, the situation that the hand is strictly prevented from extending into a gap of a mechanical pressing plate in the shearing process of the stainless steel plate, and any tool object is not accurately placed on an upper tool rest is required, when the shearing direction of the stainless steel plate is adjusted, the feet of the worker are not allowed to be placed on a pedal, so that the personal safety of the worker in the shearing process of the stainless steel plate is effectively ensured, and the shearing efficiency of the plate is improved, when a stainless steel plate for manufacturing a rectangular air pipe is blanked and before a mouth is rolled, a worker must use a chamfering machine or a scissor to chamfer the stainless steel plate, the chamfer shape is determined by the actual product shape, the thickness of the stainless steel plate for manufacturing the rectangular air pipe is 1.2mm, the stainless steel plate just reaches the welding limit of automatic argon arc, the welding seam form is determined according to the structure and the welding method of the air pipe, the rectangular air pipe is manufactured by adopting longitudinal straight seam welding, the rectangular air pipe is mainly used for discharging oil smoke in a kitchen, and the inner wall of the rectangular air pipe is not allowed to have dents and ribs, so the length of the manufactured single-section rectangular air pipe is not more than 1200mm, the pipe fittings and elbow parts which are more than 1200mm need to be reinforced by an external welding reinforcing frame which is usually connected with the air pipe by intermittent argon arc welding, the worker draws a square line on the surface of the stainless steel plate welded by the argon arc welding method by using a marking tool, placing the side of the stainless steel plate with the drawn square folding line on a square folding machine, placing the side on the center line of a lower die, aligning the center line of a blade with the center line of the lower die during square folding operation, keeping a certain safety distance between a worker and the square folding machine during square folding to avoid the collision and damage of an overturned steel plate or a counterweight, placing a square flange on a punch press after blanking and straightening by the worker, punching rivet holes and bolt holes, wherein the hole distance is not more than 150mm, placing the punched angle steel on a welding platform for welding, clamping according to dies of various specifications during welding, wherein the side length of a rectangular air pipe is less than or equal to 630mm, the flange specification used is 30 x 3, the side length of the rectangular air pipe is greater than 800mm and less than 1250mm, the flange specification used is 30 x 4, the side length of the rectangular air pipe is greater than 1600mm and less than 2500mm, the flange specification used is 40 x 4, when the stainless steel air duct is connected with the angle steel flange, the stainless steel air duct with the wall thickness of 1.2mm can adopt flanging spot welding, and the flange is attached to the outer surface of the wall of the rectangular air duct during spot welding.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A stainless steel air duct construction process is characterized in that: the construction process comprises the following steps:
s1: unfolding a stainless steel plate, placing the stainless steel plate on the surface of a workbench, and marking according to the specification and the size of a rectangular air pipe to be manufactured;
s2: checking the size of the stainless steel plate after marking, and shearing the stainless steel plate by using mechanical scissors and manual scissors according to the shape of the marked line;
s3: chamfering the stainless steel plate which is cut to manufacture the rectangular air pipe, and then making a seam;
s4: then, connecting the stainless steel plates subjected to chamfering and seaming production in a welding mode, and finally folding the stainless steel plates into a required angle by using a square folding machine to complete the rectangular air pipe forming operation;
s5: and (3) assembling the stainless steel rectangular air pipe and the manufactured square flange in a welding mode.
2. The stainless steel air duct construction process according to claim 1, characterized in that: in S1, the basic manner of scribing is as follows: the right-angle line, the perpendicular bisector, the parallel line, the angular bisector, the straight line bisector, the circle bisector, and the like, and the unfolding method preferably adopts the parallel line method, the radial line method, and the triangular line method.
3. The stainless steel air duct construction process according to claim 1, characterized in that: in S1, the drawing lines are respectively developed according to different geometric shapes and specifications of the drawing and the bulk air duct.
4. The stainless steel air duct construction process according to claim 1, characterized in that: in the S2, the fixed type vibration shears are used for stabilizing the steel plate by two hands, the distance between the two hands and the knife edge is not less than 5cm, and the force is uniform and appropriate.
5. The stainless steel air duct construction process according to claim 1, characterized in that: in S3, the tool used in the chamfering process is a chamfering machine or scissors.
6. The stainless steel air duct construction process according to claim 1, characterized in that: in S4, the stainless steel air pipes are all connected by adopting a full-process automatic argon arc welding method.
7. The stainless steel air duct construction process according to claim 1, characterized in that: in S4, the stainless steel air duct is folded such that the center line of the upper blade of the machine coincides with the center line of the lower mold.
8. The stainless steel air duct construction process according to claim 7, wherein: in the S5, the square flange is formed by assembling and welding four stainless steel angle steels, the inner diameter of the welded flange cannot be smaller than the outer diameter of the air pipe during scribing and blanking, and the square flange is cut off by a section steel cutting machine according to a line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111588715.XA CN114211207A (en) | 2021-12-23 | 2021-12-23 | Stainless steel air duct construction process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111588715.XA CN114211207A (en) | 2021-12-23 | 2021-12-23 | Stainless steel air duct construction process |
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| CN114211207A true CN114211207A (en) | 2022-03-22 |
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| CN202111588715.XA Pending CN114211207A (en) | 2021-12-23 | 2021-12-23 | Stainless steel air duct construction process |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020139000A1 (en) * | 2001-04-02 | 2002-10-03 | Kneipp Matt C. | Pipe fitters lay out tool |
| CN105058055A (en) * | 2015-08-21 | 2015-11-18 | 中铁建大桥工程局集团第五工程有限公司 | Manufacturing and installation method for built-in flange and air hose for building construction |
| CN105715877A (en) * | 2014-12-05 | 2016-06-29 | 重庆永林机械设备有限公司 | Air duct manufacturing process |
| CN106541252A (en) * | 2016-10-31 | 2017-03-29 | 山西省工业设备安装有限公司 | Subway ventilation engineering cold-rolled steel sheet wind pipe construction method |
| CN107965624A (en) * | 2017-11-22 | 2018-04-27 | 广州正德工业工程技术有限公司 | Lithium battery film applicator air hose prepares and mounting process |
| CN110253303A (en) * | 2019-05-21 | 2019-09-20 | 中外建安装有限公司 | The processing of plate flange blast pipe and its mounting process altogether |
| CN110814640A (en) * | 2019-09-30 | 2020-02-21 | 天津奥特浦斯机电设备有限公司 | Stainless steel welding air pipe product production management system based on BIM |
-
2021
- 2021-12-23 CN CN202111588715.XA patent/CN114211207A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020139000A1 (en) * | 2001-04-02 | 2002-10-03 | Kneipp Matt C. | Pipe fitters lay out tool |
| CN105715877A (en) * | 2014-12-05 | 2016-06-29 | 重庆永林机械设备有限公司 | Air duct manufacturing process |
| CN105058055A (en) * | 2015-08-21 | 2015-11-18 | 中铁建大桥工程局集团第五工程有限公司 | Manufacturing and installation method for built-in flange and air hose for building construction |
| CN106541252A (en) * | 2016-10-31 | 2017-03-29 | 山西省工业设备安装有限公司 | Subway ventilation engineering cold-rolled steel sheet wind pipe construction method |
| CN107965624A (en) * | 2017-11-22 | 2018-04-27 | 广州正德工业工程技术有限公司 | Lithium battery film applicator air hose prepares and mounting process |
| CN110253303A (en) * | 2019-05-21 | 2019-09-20 | 中外建安装有限公司 | The processing of plate flange blast pipe and its mounting process altogether |
| CN110814640A (en) * | 2019-09-30 | 2020-02-21 | 天津奥特浦斯机电设备有限公司 | Stainless steel welding air pipe product production management system based on BIM |
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Application publication date: 20220322 |
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