CN110877194A - Forming process of jacket cavity - Google Patents
Forming process of jacket cavity Download PDFInfo
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- CN110877194A CN110877194A CN201911214844.5A CN201911214844A CN110877194A CN 110877194 A CN110877194 A CN 110877194A CN 201911214844 A CN201911214844 A CN 201911214844A CN 110877194 A CN110877194 A CN 110877194A
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- welding
- wall
- jacket
- cavity
- steel plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention discloses a forming process of a jacket cavity, which comprises the following steps: preparing materials, processing a medium inlet and a medium outlet, and welding a cavity for molding. The invention develops the advantages that four edges of two cut flat steel plates are completely welded together, gas is pressed into a closed gap between the two plates to form pressure, the plates are expanded to form a jacket cavity, rivet welding points are uniformly distributed, the strength of the cavity is increased, the processing technology is simple, the welding amount is small, the cost is low and the like, the problems of forming of some jacket cavities with low design pressure-bearing requirements are solved, and the using process is optimized.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a forming process of a jacket cavity.
Background
The jacket refers to an outer jacket which is added on the outer surface of the wall (or the wall) of the container, heating media such as steam, hot water or hot oil can be introduced into the jacket to heat materials in the container (or in the pipeline), cooling media such as cooling water or other cooling fluids can be introduced into the jacket to cool the materials in the container (or in the pipeline), but the traditional jacket cavity manufacturing method adopts the steps that two steel plates are respectively bent firstly, and finally, the joint is welded in a splicing mode to form a jacket cavity, so that the process is complex, the welding amount is large, and the cost is high.
Disclosure of Invention
The invention aims to provide a forming process of a jacket cavity, which aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
a forming process of a jacket cavity comprises the following steps:
the method comprises the following steps: preparing materials, namely preparing 3mm steel plates for the inner wall material and 1mm steel plates for the outer wall material, and cutting the steel plates selected for the inner wall and the outer wall by using a cutting machine according to process requirements;
step two: processing a medium inlet and outlet, marking the mounting position of the medium inlet and outlet on the surface of the outer wall steel plate by using a surveying and mapping tool according to the processing requirement, and mounting the medium inlet and outlet on the surface of the outer wall steel plate after marking;
step three: welding, namely superposing the two cut inner walls and the outer wall together to form a jacket, completely welding the four sides of the flat steel plate together by using an electric welding machine, and performing heat treatment, quality inspection and finished product acceptance after welding;
step four: and (3) forming a cavity, connecting the pneumatic booster pump with the medium inlet and outlet by using an air pipe, wherein the pressure generated by the gas of the connected pneumatic booster pump is less than or equal to 20N, and forming a jacket cavity with the maximum inner cavity gap of 3mm in the jacket.
Preferably, the steel sheet is a flat plate-shaped steel material cast from molten steel, cooled and pressed, and the flat plate-shaped steel material is formed, then the surface is ground and polished, and stored in a dry environment.
Preferably, the steel plate for the inner wall and the steel plate for the outer wall to be processed are measured and painted by using a professional measuring and painting tool, respectively.
Preferably, the surface of the jacket is uniformly provided with riveting points in a distributed manner, and riveting is carried out.
Compared with the prior art, the invention has the beneficial effects that: according to the manufacturing method of the forming process of the jacket cavity, four sides of two cut flat steel plates are welded together completely, gas is pressed into a closed gap between the two plates to form pressure, the plates are expanded to form the jacket cavity, rivet welding points are uniformly distributed, the strength of the cavity is improved, the manufacturing process is simple, the welding amount is small, the cost is low, and the like.
Drawings
Fig. 1 is a flow chart of a jacket cavity molding process of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, an embodiment of the present invention: a forming process of a jacket cavity is characterized in that: the method comprises the following four steps:
the method comprises the following steps: preparing materials, namely preparing 3mm steel plates for the inner wall material and 1mm steel plates for the outer wall material, and cutting the steel plates selected for the inner wall and the outer wall by using a cutting machine according to process requirements;
step two: the method comprises the steps of processing a medium inlet and a medium outlet, marking the installation position of the medium inlet and the medium outlet on the surface of an outer wall steel plate by using a surveying and mapping tool according to processing requirements, so that the state of the device after molding can be preliminarily displayed before processing, and the medium inlet and the medium outlet are installed on the surface of the outer wall steel plate after marking is completed, so that gas, liquid and solid can be guided when the device is used;
step three: welding, namely superposing the two cut inner walls and the outer wall together to form a jacket, completely welding the four sides of the flat steel plate together by using an electric welder, and performing heat treatment after welding (placing a weldment in a heat treatment furnace to be heated to a certain temperature (below Ac 1) and preserving heat for a certain time, and utilizing the reduction of the yield limit of materials at high temperature to generate plastic flow at a place with high internal stress, the elastic deformation is gradually reduced, and the plastic deformation is gradually increased to reduce the stress), performing quality inspection and inspecting finished products;
step four: and (3) forming a cavity, connecting the pneumatic booster pump with the medium inlet and outlet by using an air pipe, wherein the pressure generated by the gas of the connected pneumatic booster pump is less than or equal to 20N, and forming a jacket cavity with the maximum inner cavity gap of 3mm in the jacket.
Furthermore, the steel plate is made of flat steel which is formed by pouring molten steel, cooling and pressing, the surface of the flat steel is ground and polished after the flat steel is formed, and the flat steel is stored in a dry environment, so that the phenomenon that the surface of the steel plate is promoted to generate iron oxide to generate rust due to high humidity in air at a storage position in the storage process of the device is avoided, and the quality of the device is improved.
Further, the inner wall and the outer wall which need to be processed are measured and painted by steel plates respectively by using professional measuring and painting tools, so that the device is more convenient for users to process, and the accuracy of the device during processing is improved.
Furthermore, an electric welding machine (alternating current and direct current), a welding rod line, a welding clamp, a face mask, a small hammer, a welding rod drying oven, a welding rod heat-preserving barrel, a steel wire brush, a asbestos strip and a temperature measurer are needed to be used in the welding process, a drawing needs to be familiar before welding, whether a groove and an assembly gap meet requirements or not is checked before welding, whether tack welding is firm or not, oil stains and rust do not exist around a welding seam, welding is carried out at a constant speed, the thickness and the width of the welding seam are ensured to be uniform and consistent, the molten iron and molten slag in a molten pool are kept at equal distance (2-3 mm) from the inside of the face mask, the welding angle is determined according to the thickness of two welding parts, and the welding angle is two aspects, namely; the included angle between the welding rod and the left and right sides of the welding is two conditions, when the thicknesses of the weldment are equal, the included angle between the welding rod and the weldment is 45 degrees; when the weldment thickness is unequal, the included angle between the welding rod and one side of the thicker weldment is larger than the included angle between the welding rod and one side of the thinner weldment, and the ultrasonic flaw detector is used for detecting flaws of the device after welding is completed.
Furthermore, rivet welding points are uniformly distributed on the surface of the clamping sleeve and are subjected to rivet welding, the rivet welding is a welding mode of electric welding, and a common welding method is to permeate a welded object by using welding bars and is generally used for welding relatively thick metal, so that the overall strength of the cavity is increased, and the stability of the device is improved.
Rivet welding is a welding method of electric welding. The general welding method is to penetrate the welded object with welding rod, one part has rivet column, which is inserted into the hole of the other part, and then the rivet column is deformed to form rivet head through cold flow or melting of plastic, and the two parts are locked together mechanically.
As the furnace burden and the aluminum alloy liquid absorb gas in the smelting, transporting and pouring processes, tools needed in the rivet welding process of the device are prepared before use, and a central line, a position line, lofting and the like are drawn on the surface of a workpiece by using a surveying and mapping tool after the preparation is finished, so that the position of a rivet welding point is surveyed and mapped.
Because the phenomenon of position deviation takes place easily at the in-process of survey and drawing, consequently need inspect each size and appearance according to the drawing before the processing and carry out the retest to the device, utilize the puncher to punch to the rivet welding point after detecting and accomplishing.
The welding equipment is adjusted, and oil stain corrosion and the like in the two sides of the weld joint within 30 are cleaned and polished, so that the influence of the oil stain corrosion and the like on welding in use is avoided.
The method is characterized in that cross welding or symmetrical welding or multi-layer welding is adopted for several times to control welding deformation, increase the strength of a cavity, improve the processing performance and obtain the dimensional stability, workpiece turnover is considered during assembly welding, sometimes, in order to prevent deformation, all welding seams are welded for one time and then welded for another time, at the moment, the problem of workpiece turnover for multiple times is considered, defects (splashing, undercut, slag inclusion, air holes) and the like are checked after welding is finished, and then nondestructive detection is determined according to materials.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. A forming process of a jacket cavity is characterized in that: the method comprises the following steps:
the method comprises the following steps: preparing materials, namely preparing 3mm steel plates for the inner wall material and 1mm steel plates for the outer wall material, and cutting the steel plates selected for the inner wall and the outer wall by using a cutting machine according to process requirements;
step two: processing a medium inlet and outlet, marking the mounting position of the medium inlet and outlet on the surface of the outer wall steel plate by using a surveying and mapping tool according to the processing requirement, and mounting the medium inlet and outlet on the surface of the outer wall steel plate after marking;
step three: welding, namely superposing the two cut inner walls and the outer wall together to form a jacket, completely welding the four sides of the flat steel plate together by using an electric welding machine, and performing heat treatment, quality inspection and finished product acceptance after welding;
step four: and (3) forming a cavity, connecting the pneumatic booster pump with the medium inlet and outlet by using an air pipe, wherein the pressure generated by the gas of the connected pneumatic booster pump is less than or equal to 20N, and forming a jacket cavity with the maximum inner cavity gap of 3mm in the jacket.
2. The process of claim 1, wherein the molding process comprises: the steel plate is a flat steel plate formed by casting molten steel, cooling and pressing, and the surface of the flat steel plate is ground and polished after being formed and is stored in a dry environment.
3. The process of claim 1, wherein the molding process comprises: and measuring and drawing the steel plates for the inner wall and the outer wall which need to be processed by using a professional measuring and drawing tool.
4. The process of claim 1, wherein the molding process comprises: and uniformly distributing and arranging riveting points on the surface of the clamping sleeve, and riveting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911214844.5A CN110877194B (en) | 2019-12-02 | 2019-12-02 | Forming process of jacket cavity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911214844.5A CN110877194B (en) | 2019-12-02 | 2019-12-02 | Forming process of jacket cavity |
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| Publication Number | Publication Date |
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| CN110877194A true CN110877194A (en) | 2020-03-13 |
| CN110877194B CN110877194B (en) | 2021-08-10 |
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| CN201911214844.5A Active CN110877194B (en) | 2019-12-02 | 2019-12-02 | Forming process of jacket cavity |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3206365A1 (en) * | 1982-02-22 | 1983-09-01 | Ludwig Edel GmbH & Co, 7988 Wangen | Method of fastening tube shells to the outer wall of a process container and a tube shell for use with the method |
| CN1031665A (en) * | 1987-09-04 | 1989-03-15 | 冶金工业部长沙矿冶研究院 | Method for manufacturing heat exchange plate with copper-clad pipe wall |
| US20120175095A1 (en) * | 2011-01-12 | 2012-07-12 | Saade Makhlouf | Heat exchanger manifold and method of manufacture |
| CN104191069A (en) * | 2014-07-25 | 2014-12-10 | 武汉宇宙科技有限公司 | Manufacturing process of smoke waste heat exchanger for radiant tube burner |
| JP2015171732A (en) * | 2015-06-11 | 2015-10-01 | 日本軽金属株式会社 | Manufacturing method for liquid-cooled jacket |
| CN105014336A (en) * | 2015-06-24 | 2015-11-04 | 江苏盛信重工有限公司 | Novel manufacturing technique for double-tubesheet heat exchanger |
| CN106612603A (en) * | 2015-10-23 | 2017-05-03 | 成都泰格微波技术股份有限公司 | A die-casting manufacturing technique for a novel aluminum-copper composite pipe cooling cavity |
| JP2018075609A (en) * | 2016-11-09 | 2018-05-17 | コベルコ鋼管株式会社 | Method for thermally processing two-phase stainless steel pipe |
-
2019
- 2019-12-02 CN CN201911214844.5A patent/CN110877194B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3206365A1 (en) * | 1982-02-22 | 1983-09-01 | Ludwig Edel GmbH & Co, 7988 Wangen | Method of fastening tube shells to the outer wall of a process container and a tube shell for use with the method |
| CN1031665A (en) * | 1987-09-04 | 1989-03-15 | 冶金工业部长沙矿冶研究院 | Method for manufacturing heat exchange plate with copper-clad pipe wall |
| US20120175095A1 (en) * | 2011-01-12 | 2012-07-12 | Saade Makhlouf | Heat exchanger manifold and method of manufacture |
| CN104191069A (en) * | 2014-07-25 | 2014-12-10 | 武汉宇宙科技有限公司 | Manufacturing process of smoke waste heat exchanger for radiant tube burner |
| JP2015171732A (en) * | 2015-06-11 | 2015-10-01 | 日本軽金属株式会社 | Manufacturing method for liquid-cooled jacket |
| CN105014336A (en) * | 2015-06-24 | 2015-11-04 | 江苏盛信重工有限公司 | Novel manufacturing technique for double-tubesheet heat exchanger |
| CN106612603A (en) * | 2015-10-23 | 2017-05-03 | 成都泰格微波技术股份有限公司 | A die-casting manufacturing technique for a novel aluminum-copper composite pipe cooling cavity |
| JP2018075609A (en) * | 2016-11-09 | 2018-05-17 | コベルコ鋼管株式会社 | Method for thermally processing two-phase stainless steel pipe |
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| CN110877194B (en) | 2021-08-10 |
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