CN112222219A - Process for forming internal thread metal tube by welding method - Google Patents
Process for forming internal thread metal tube by welding method Download PDFInfo
- Publication number
- CN112222219A CN112222219A CN201910582060.1A CN201910582060A CN112222219A CN 112222219 A CN112222219 A CN 112222219A CN 201910582060 A CN201910582060 A CN 201910582060A CN 112222219 A CN112222219 A CN 112222219A
- Authority
- CN
- China
- Prior art keywords
- metal
- internal thread
- forming
- frequency welding
- belt
- 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.)
- Pending
Links
- 239000002184 metal Substances 0.000 title claims abstract description 36
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 36
- 238000003466 welding Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004049 embossing Methods 0.000 claims abstract description 18
- 238000005096 rolling process Methods 0.000 claims abstract description 11
- 238000005516 engineering process Methods 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 239000010949 copper Substances 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 238000005057 refrigeration Methods 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 abstract 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
- B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
The invention belongs to the field of refrigeration systems, and particularly relates to a process for forming an internal thread metal pipe by a welding method, which comprises the following steps of (1) thread rolling: according to different thread shapes, selecting a proper embossing roller, and rolling the threads on the high-precision metal strip through the embossing roller; (2) high-frequency welding: and (3) forming the high-precision metal strip which is embossed in the step (1) into an internal thread metal tube by high-frequency welding equipment. Preferably, the metal belt in the step (1) is a copper belt or a steel belt. The metal band of the process does not use any organic oil for lubrication and cooling in the embossing and high-frequency welding processes, has extremely high cleanness of the inner surface, can realize no cleaning in the true sense, and reduces the environmental pollution. And the high-frequency welding technology adopted in the process is mature equipment at the present stage, and the process is easy to promote and realize.
Description
Technical Field
The invention belongs to the field of refrigeration systems, and particularly relates to a process for forming an internal thread metal pipe by a welding method.
Background
With the rapid development of economy, the market capacity of air conditioners and refrigerators is expanding year by year, and the quality requirements of the air conditioners and refrigerators are gradually increasing. In the refrigeration industry of air conditioners and refrigerators, with the development of air conditioners and refrigerators towards high capacity, low energy consumption and small size, the traditional smooth surface tube is gradually replaced by the internal threaded tube with high-efficiency heat transfer characteristic, and the internal threaded tube becomes a special conduction tube for manufacturing high-performance two devices (an evaporator and a condenser). The tube is deeply processed on the basis of a plain tube, and the inner surface of the tube is provided with a plurality of spiral tooth-shaped grooves, so that the heat dissipation area in the tube is enlarged by 2-3 times, the medium in the tube forms turbulence, the heat exchange efficiency is improved by 20-30%, the tube is considered as an ideal energy-saving and material-saving product, and the tube is generally regarded as an important product in the refrigeration industry.
Disclosure of Invention
Based on the technical scheme, the invention aims to provide a process for forming an internal thread metal tube by a welding method for producing an internal thread copper tube and a steel tube so as to improve the heat exchange efficiency of a refrigerating system.
In order to solve the technical problems, the invention adopts the following technical scheme:
a technology for forming internal-thread metal tube by welding method includes such steps as
(1) And (3) rolling threads: according to different thread shapes, selecting a proper embossing roller, and rolling the threads on the high-precision metal strip through the embossing roller;
(2) high-frequency welding: and (3) forming the high-precision metal strip which is embossed in the step (1) into an internal thread metal tube by high-frequency welding equipment.
Preferably, the metal belt in the step (1) is a copper belt or a steel belt.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a process for forming an internal thread metal pipe by a welding method, which mainly comprises two steps, namely, rolling threads on a high-precision metal belt through an embossing roller; and secondly, forming the metal strip subjected to embossing into the internal thread metal pipe by high-frequency welding equipment. The metal belt is lubricated and cooled without any organic oil in the embossing and high-frequency welding processes, the cleanness of the inner surface is extremely high, the cleaning is not needed in the true sense, and the environmental pollution is reduced. And the high-frequency welding technology adopted in the process is mature equipment at the present stage, and the process is easy to promote and realize.
Drawings
Fig. 1 is a schematic front view of the present invention.
Detailed Description
The embodiment is described in detail with reference to fig. 1, which specifically includes the following steps:
a technology for forming internal-thread metal tube by welding method includes such steps as
(1) And (3) rolling threads: according to different thread shapes, selecting a proper embossing roller 1, and rolling threads on the high-precision metal strip 2 through the embossing roller 1;
(2) high-frequency welding: and (3) forming the high-precision metal strip 2 which is embossed in the step (1) into an internal thread metal tube 4 by a high-frequency welding device 3.
Preferably, the metal belt in the step (1) is a copper belt or a steel belt.
The invention relates to a process for forming an internal thread metal pipe by a welding method, which mainly comprises two steps, namely, rolling threads on a high-precision metal band 2 through an embossing roller 1; in the embossing process, a proper embossing roller 1 is required to be selected according to requirements, and complex tooth shapes formed by one-time embossing or multiple combined embossing, such as herringbone teeth, cross fork teeth, rhombic teeth and other high-difficulty tooth shapes, can also be used; and secondly, forming the metal strip subjected to embossing into an internal thread metal pipe by high-frequency welding equipment, wherein the high-frequency welding equipment is a welding device for butting metal materials by utilizing a skin effect and an adjacent effect generated by high-frequency current, and is common equipment for producing straight welded pipes. In the process, the metal belt is lubricated and cooled in the production flow by rolling, forming and welding, no organic oil is used, the cleanness of the inner surface is extremely high, no cleaning can be realized in the true sense, and the environmental pollution is reduced. And the high-frequency welding technology adopted in the process is mature equipment at the present stage, and the process is easy to promote and realize.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention in any way, so that any person skilled in the art can make changes or modifications to the equivalent embodiments using the above disclosure. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are still within the protection scope of the present invention, unless they depart from the technical spirit of the present invention.
Claims (2)
1. A technology for forming an internal thread metal pipe by a welding method is characterized in that: comprises the following steps
(1) And (3) rolling threads: according to different thread shapes, selecting a proper embossing roller, and rolling the threads on the high-precision metal strip through the embossing roller;
(2) high-frequency welding: and (3) forming the high-precision metal strip which is embossed in the step (1) into an internal thread metal tube by high-frequency welding equipment.
2. The process of forming internally threaded metal tubes by welding as set forth in claim 1 wherein: and (2) the metal belt in the step (1) is a copper belt or a steel belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910582060.1A CN112222219A (en) | 2019-06-30 | 2019-06-30 | Process for forming internal thread metal tube by welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910582060.1A CN112222219A (en) | 2019-06-30 | 2019-06-30 | Process for forming internal thread metal tube by welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112222219A true CN112222219A (en) | 2021-01-15 |
Family
ID=74110959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910582060.1A Pending CN112222219A (en) | 2019-06-30 | 2019-06-30 | Process for forming internal thread metal tube by welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112222219A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1148523A (en) * | 1995-04-26 | 1997-04-30 | 阿尔卡泰尔电缆公司 | Method for making internal channelled tube for heat-exchanging device |
| JP2002224744A (en) * | 2001-02-06 | 2002-08-13 | Okiyama Seisakusho:Kk | Production method of metal pipe having screw thread |
| CN1570537A (en) * | 2004-04-23 | 2005-01-26 | 中炬高新技术实业（集团）股份有限公司 | Welded steel pipes with ribs and method of manufacture |
| CN103433323A (en) * | 2013-08-05 | 2013-12-11 | 江苏天潭科技材料有限公司 | Production method of internal thread aluminum pipe |
| CN104154796A (en) * | 2014-07-29 | 2014-11-19 | 袁新华 | Internal-thread heat exchange pipe and manufacturing process thereof |
-
2019
- 2019-06-30 CN CN201910582060.1A patent/CN112222219A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1148523A (en) * | 1995-04-26 | 1997-04-30 | 阿尔卡泰尔电缆公司 | Method for making internal channelled tube for heat-exchanging device |
| JP2002224744A (en) * | 2001-02-06 | 2002-08-13 | Okiyama Seisakusho:Kk | Production method of metal pipe having screw thread |
| CN1570537A (en) * | 2004-04-23 | 2005-01-26 | 中炬高新技术实业（集团）股份有限公司 | Welded steel pipes with ribs and method of manufacture |
| CN103433323A (en) * | 2013-08-05 | 2013-12-11 | 江苏天潭科技材料有限公司 | Production method of internal thread aluminum pipe |
| CN104154796A (en) * | 2014-07-29 | 2014-11-19 | 袁新华 | Internal-thread heat exchange pipe and manufacturing process thereof |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210115 |
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| WD01 | Invention patent application deemed withdrawn after publication |