CN103032640A - Compressor exhaust pipe and manufacturing method and application of compressor exhaust pipe - Google Patents
Compressor exhaust pipe and manufacturing method and application of compressor exhaust pipe Download PDFInfo
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- CN103032640A CN103032640A CN2012105893846A CN201210589384A CN103032640A CN 103032640 A CN103032640 A CN 103032640A CN 2012105893846 A CN2012105893846 A CN 2012105893846A CN 201210589384 A CN201210589384 A CN 201210589384A CN 103032640 A CN103032640 A CN 103032640A
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- compressor exhaust
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Abstract
The invention relates to the field of a compressor, in particular to a compressor exhaust pipe and a manufacturing method and application of the compressor exhaust pipe. The compressor exhaust pipe is arranged on an upper cover of the compressor and comprises a copper pipe section and an iron pipe section, the copper pipe section and the iron pipe section are in butt welding through flash welding, and the iron pipe section is connected with the upper cover of the compressor through electric resistance welding. The manufacturing method of the compressor exhaust pipe comprises preheating and upset-forging. The compressor exhaust pipe can be applied to an air conditioning compressor, a refrigerator compressor and a scroll compressor. The connection between the copper pipe section and the iron pipe section of the compressor exhaust pipe and the connection between the iron pipe section and the upper cover of the compressor adopt a welding method without welding materials, the use of the welding materials is completely eradicated, thus the environment cannot be polluted by waste gases such as carbon dioxide generated during a production process, the technology is simplified while the green production is realized, and the manufacturing cost is lowered; and the compressor exhaust pipe has the advantages that the welding quality is good, the welding strength is more reliable, the welding quality is increased, and the service life is prolonged.
Description
Technical field
The present invention relates to compressor field, particularly relate to a kind of compressor exhaust pipe and manufacture method thereof and application.
Background technique
Compressor, it is a kind of fluid machinery that low-pressure gas is promoted to pressurized gas, it is the heart of refrigeration system, the enclosure interior of compressor is provided with cylinder, and during work, the refrigerant gas of low-temp low-pressure enters cylinder from suction tude, after cylinder compresses it, from the refrigerant gas of outlet pipe discharge High Temperature High Pressure, for refrigeration cycle provides power, thus the refrigeration cycle of realization compression → condensation → expansion → evaporation.
Present compressor exhaust pipe great majority of the prior art adopt the structure of whole copper pipe, it is connected with the loam cake of compressor by silver solder gas brazing or high frequency brazing, adopts the bearing capacity of above-mentioned gas brazing joint with scolder relevant with joint junction surface size.Therefore, the methods such as gas brazing certainly will need to adopt that lap joint and external member are spliced are to increase joint junction surface area, to remedy the deficiency of soldering strength, but also can produce great amount of carbon dioxide because using scolder, so that befouling environment, the above-mentioned compressor outlet pipe is because adopting a large amount of copper materials to cause cost to improve simultaneously.Adopt above-mentioned high frequency brazing, its electrical efficiency is lower, and operating voltage is too high, and Security is relatively poor, fragility is larger, and is easy to crack, and working life is short, and air-conditioning producer is when welding again, cause easily the secondary of scolder to melt, so that inferior quality, be not easy to the welding of outlet pipe in the compressor field.
Thereupon, people are devoted to being connected except with the gas brazing of scolder or the better Placement the high frequency brazing between compressor exhaust pipe and the compressor top cover always.
Notification number is that the Chinese utility model patent of CN 202250685 U discloses " outlet pipe on a kind of air-conditioning compressor ", its technological scheme comprise " cylindrical red copper compressor exhaust pipe (1) and iron and steel compressor connecting tube (2); described iron and steel compressor connecting tube (2) welding is sheathed on red copper compressor exhaust pipe (1) outside, described iron and steel compressor connecting tube (2) comprise cylindrical tube (3) and weld integrally manufactured the forming of table top (4); Described welding table top (4) is made of the table top (9) that is connected between cylindrical upper table surface (5), cylindrical following table (6) and cylindrical upper table surface (5) and the cylindrical following table (6)." iron pipe of this outlet pipe and the Placement between the copper pipe be with scolder cross slice weldering or high frequency brazing, and the iron pipe of this outlet pipe and the linkage structure between the copper pipe need to be set up the welding table top.The complexity that has so just caused linkage structure between copper pipe and the iron pipe, moreover, because copper pipe and iron pipe are the excessively stove weldering (may also be referred to as is caulk weld) of socket joint type, when welding, can produce vibration and cracking, can not satisfy industry for the requirement of the clean dynamics of copper pipe, and when air-conditioning producer welds, cause easily the secondary of scolder to melt again, so that inferior quality, moreover owing to used scolder, not environmental protection becomes.
To sum up, for the cost pressure that alleviates compressor manufacturer and avoid copper pipe and iron pipe between the complexity of linkage structure and CO 2 waste gas to the problems such as pollution of environment, research and develop a kind of production process environmental protection, compressor exhaust pipe cheap for manufacturing cost and manufacture method thereof have very far-reaching and great meaning.
Summary of the invention
One of purpose of the present invention is to avoid above-mentioned deficiency of the prior art and provides a kind of production process environmental protection, compressor exhaust pipe cheap for manufacturing cost.
Two of purpose of the present invention is to avoid above-mentioned deficiency of the prior art and provides a kind of and need not scolder, both environmental protection, economizes the manufacture method of compressor exhaust pipe that can copper-saving.
Three of purpose of the present invention is to avoid above-mentioned deficiency of the prior art and application that a kind of compressor exhaust pipe is provided.
One of purpose of the present invention is achieved through the following technical solutions:
A kind of compressor exhaust pipe is arranged at the loam cake of compressor, comprises copper pipe section and iron pipe section, and described copper pipe section is docked welding with described iron pipe section by flash welding.
Wherein, in the butt end of the butt end of described copper pipe section and described iron pipe section, the internal diameter of one of them butt end is less than the external diameter of another butt end wherein.
Wherein, described iron pipe section is connected with the loam cake of compressor by resistance welding.
Wherein, described iron pipe section comprises cylindrical tube section and weld part.
Wherein, described weld part is the annular boss that is arranged at the cylindrical of described cylindrical tube section.
Wherein, described weld part is bottom and the outward extending flange that is arranged at described cylindrical tube section, is angle α setting between the outer wall of the outer wall of described flange and described cylindrical tube section.
Wherein, the scope of described angle α is 0 °＜α＜180 °.
Two of purpose of the present invention is achieved through the following technical solutions:
A kind of manufacture method of compressor exhaust pipe may further comprise the steps:
A. preheating: after being connected in the clamp that is assemblied in the secondary connection of welding transformer with the iron pipe section copper pipe section of described compressor exhaust pipe, it is applied large electric current, the copper pipe section repeatedly contacts rapidly with the iron pipe section and is closed circuit, separately be rapidly again open circuit, form interrupted flash of light, make the butt end form high heat, until the butt end is melted;
B. upset: when the length that is melted when the butt end reaches the melting length of setting, apply rapidly the welding that upset force is finished copper pipe section and iron pipe section.
Wherein, the fusion penetration scope of described copper pipe section and described iron pipe section welding is greater than 0 and less than or equal to 20mm.
Three of purpose of the present invention is achieved through the following technical solutions:
A kind of application of compressor exhaust pipe, described compressor exhaust pipe is applied to any in air condition compressor, freezer compressor and the scroll compressor.
Beneficial effect of the present invention:
A kind of compressor exhaust pipe of the present invention comprises copper pipe section and iron pipe section, and described copper pipe section is docked welding with described iron pipe section by flash welding, and the step of the copper pipe section of this compressor exhaust pipe and iron pipe section flash butt welding method comprises preheating and upset.Adopted the butt-welded method of above-mentioned solderless flash welding to make compressor exhaust pipe in the butt end of copper pipe section and iron pipe section, be completely free of the use of scolder, therefore can not produce again in process of production the exhaust emission pollution environment such as carbon dioxide, also simplify technique when realizing green production, reduced manufacture cost; Moreover, just because of its process characteristic, the copper pipe section can directly be docked welding with the iron pipe section, need not to weld again after the socket, so that compressor exhaust pipe can be designed to more simple structure, and the combination of two pipes is welding of molecular force combination between the metal of two pipes, it is different from the stove of crossing of the prior art and welds or be referred to as the joint filling welding, therefore welding quality is better, weld strength is also more reliable, has improved welding quality, need not simultaneously to worry when air-conditioning producer welds again, the crack that the secondary melting of scolder occurs and cause, leakage waits the generation of weld defects problem, prolonged working life, and flash welding efficient is high, power is low, its welding process adopts the heavy current of low voltage, makes whole welding process more safe and reliable.The breakthrough of technological innovation of the present invention the intrinsic thinking of related domain, the technological means such as the intrinsic high frequency welding of selecting of those skilled in the art, the welding of mistake stove have been eliminated, and adopted the butt-welded mode of flash welding, belong in the art bold technological innovation, promoted further developing of compressor exhaust pipe.
Description of drawings
Utilize accompanying drawing that invention is described further, but the embodiment in the accompanying drawing does not consist of any limitation of the invention, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain according to the following drawings other accompanying drawing.
Fig. 1 is the embodiment's 1 of a kind of compressor exhaust pipe of the present invention structural representation.
Fig. 2 is the embodiment's 2 of a kind of compressor exhaust pipe of the present invention structural representation.
Fig. 3 is another structural representation of the embodiment 2 of a kind of compressor exhaust pipe of the present invention.
Fig. 4 is the embodiment's 3 of a kind of compressor exhaust pipe of the present invention structural representation.
Reference character:
The 1-compressor exhaust pipe, 2-copper pipe section, 3-iron pipe section, 4-loam cake, 5-cylindrical tube section, 6-weld part.
Embodiment
The invention will be further described with the following Examples.
One of embodiment of a kind of compressor exhaust pipe of the present invention, as shown in Figure 1, compressor exhaust pipe 1 comprises copper pipe section 2 and iron pipe section 3, copper pipe section 2 is docked with iron pipe section 3, by flash welding its two sections are welded together between the butt end, the step of the method for manufacturing compressor exhaust pipe 1 is as follows:
A. preheating: the copper pipe section 2 of compressor exhaust pipe 1 is connected with the iron pipe section after docking is assemblied in the clamp of the secondary connection of welding transformer, it is applied large electric current, according to the formula of Joule heat
Be closed circuit by control copper pipe section 2 and more than 3 rapid contact of iron pipe section, separately be rapidly again open circuit, the resistance R value of two butt ends is constantly changed, cause the Joule heat Q between two butt ends also constantly to change, thereby form interrupted flash of light, make the butt end form high heat, until the butt end is melted;
B. upset: when the length that is melted when the butt end reaches the melting length of setting, apply rapidly the welding that upset force is finished copper pipe section 2 and iron pipe section 3.
Wherein, copper pipe section 2 is greater than 0 and less than or equal to 20mm with the fusion penetration scope of iron pipe section 3 welding, is preferably more than 0 and less than or equal to 10mm.Usually, the melting length of setting is slightly larger than the fusion penetration value range.
Solderless Flash Butt Welding mode has been adopted in welding between copper pipe section 2 and the iron pipe section 3, gas brazing or high frequency brazing with scolder have been replaced, therefore can not produce again in process of production the exhaust emission pollution environment such as carbon dioxide, save simultaneously scolder, reduce manufacture cost; And need not to increase the complicated structures such as welding table top.
Wherein, in the butt end of the butt end of copper pipe section 2 and iron pipe section 3, the internal diameter of one of them butt end is less than the external diameter of another butt end wherein.Be not the structure of socket between the two.
Because the Lower Half of compressor exhaust pipe 1 is iron pipe section 3, so compressor exhaust pipe 1 carries out with the method that can change into resistance welding that is connected of the loam cake 4 of compressor.Iron pipe section 3 comprises cylindrical tube section 5 and weld part 6, the method of weld part 6 by resistance welding is connected to and realizes on the loam cake 4 of compressor being connected of compressor exhaust pipe 1 and loam cake 4: exert pressure on the set interior lateral edges of mounting hole of the outer wall of weld part 6 and the loam cake of compressor 4, make both close contacts, pass to again electric current, melt metal between two weldments by resistance heat, molten metal solidifies rapidly under the effect of pressure and finishes welding after the outage.
Two of the embodiment of a kind of compressor exhaust pipe of the present invention, such as Fig. 2, shown in Figure 3, the main technical schemes of present embodiment is identical with embodiment 1, and unaccounted feature adopts the explanation among the embodiment 1 in the present embodiment, no longer gives unnecessary details at this.Present embodiment and embodiment's 1 difference is, weld part 6 is arranged on the annular boss of the cylindrical of described cylindrical tube section 5.Wherein, described annular boss is to be leg-of-mutton convex surface around the cylindrical of the cylindrical tube section 5 formed annular boss that rotates a circle by the cross section.Perhaps, described annular boss is to be similar half elliptic convex surface around the cylindrical of the cylindrical tube section 5 formed annular boss that rotates a circle by the cross section.Set up annular boss and be convenient to welding.
Three of the embodiment of a kind of compressor exhaust pipe of the present invention, as shown in Figure 4, the main technical schemes of present embodiment is identical with embodiment 1, and unaccounted feature adopts the explanation among the embodiment 1 in the present embodiment, no longer gives unnecessary details at this.Present embodiment and embodiment's 1 difference is, described weld part 6 is angle α setting for being arranged at bottom and the outward extending flange of described cylindrical tube section 5 between the outer wall of the outer wall of described flange and cylindrical tube section 5.
Preferably, the scope of angle α is 0 °＜α＜180 °.
Should be noted that at last; above embodiment is only in order to illustrate technological scheme of the present invention; but not limiting the scope of the invention; although with reference to preferred embodiment the present invention has been done to explain; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement technological scheme of the present invention, and not break away from essence and the scope of technical solution of the present invention.
Claims (10)
1. compressor exhaust pipe is arranged at the loam cake of compressor, and it is characterized in that: comprise copper pipe section and iron pipe section, described copper pipe section is docked welding with described iron pipe section by flash welding.
2. a kind of compressor exhaust pipe according to claim 1 is characterized in that: in the butt end of the butt end of described copper pipe section and described iron pipe section, the internal diameter of one of them butt end is less than the external diameter of another butt end wherein.
3. a kind of compressor exhaust pipe according to claim 1, it is characterized in that: described iron pipe section is connected with the loam cake of compressor by resistance welding.
4. a kind of compressor exhaust pipe according to claim 3, it is characterized in that: described iron pipe section comprises cylindrical tube section and weld part.
5. a kind of compressor exhaust pipe according to claim 4 is characterized in that: described weld part is the annular boss that is arranged at the cylindrical of described cylindrical tube section.
6. a kind of compressor exhaust pipe according to claim 4 is characterized in that: described weld part is bottom and the outward extending flange that is arranged at described cylindrical tube section, is angle α setting between the outer wall of the outer wall of described flange and described cylindrical tube section.
7. a kind of compressor exhaust pipe according to claim 6 is characterized in that: the scope of described angle α is 0 °＜α＜180 °.
8. the manufacture method of the described a kind of compressor exhaust pipe of any one in the claim 1 to 7 is characterized in that: may further comprise the steps:
A. preheating: after being connected in the clamp that is assemblied in the secondary connection of welding transformer with the iron pipe section copper pipe section of described compressor exhaust pipe, it is applied large electric current, the copper pipe section repeatedly contacts rapidly with the iron pipe section and is closed circuit, separately be rapidly again open circuit, form interrupted flash of light, make the butt end form high heat, until the butt end is melted;
B. upset: when the length that is melted when the butt end reaches the melting length of setting, apply rapidly the welding that upset force is finished copper pipe section and iron pipe section.
9. the manufacture method of a kind of compressor exhaust pipe according to claim 8 is characterized in that: the fusion penetration scope of described copper pipe section and the welding of described iron pipe section is for greater than 0 and less than or equal to 20mm.
10. the application of the described a kind of compressor exhaust pipe of any one in the claim 1 to 7 is characterized in that: described compressor exhaust pipe is applied to any in air condition compressor, freezer compressor and the scroll compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210589384.6A CN103032640B (en) | 2012-12-31 | 2012-12-31 | Compressor exhaust pipe and manufacturing method and application of compressor exhaust pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210589384.6A CN103032640B (en) | 2012-12-31 | 2012-12-31 | Compressor exhaust pipe and manufacturing method and application of compressor exhaust pipe |
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| CN103032640A true CN103032640A (en) | 2013-04-10 |
| CN103032640B CN103032640B (en) | 2015-03-18 |
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| CN201210589384.6A Active CN103032640B (en) | 2012-12-31 | 2012-12-31 | Compressor exhaust pipe and manufacturing method and application of compressor exhaust pipe |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978317A (en) * | 2014-04-25 | 2014-08-13 | 张红霞 | Compounded welded tube as well as manufacturing method and application thereof |
| CN106481531A (en) * | 2015-08-27 | 2017-03-08 | 上海日立电器有限公司 | A kind of compressor exhaust pipe |
| CN115667819A (en) * | 2020-05-21 | 2023-01-31 | 大金工业株式会社 | Pressure vessel and refrigeration device |
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| CN101235932A (en) * | 2008-03-06 | 2008-08-06 | 王志祥 | Connecting pipe between air-conditioner compressor outer housing and liquid reservoir and its welding method |
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| CN101330174A (en) * | 2008-07-15 | 2008-12-24 | 梁楚欣 | Cuprum aluminum socket connector for conductivity as well as manufacturing method and use thereof |
| CN202215860U (en) * | 2011-08-22 | 2012-05-09 | 王志祥 | Air suction outer tube on air condition compressor |
| CN102699504A (en) * | 2012-06-06 | 2012-10-03 | 东莞市金瑞五金制品有限公司 | Non-welding flux manufacturing method for reservoir of compressor |
| CN203114579U (en) * | 2012-12-31 | 2013-08-07 | 东莞市金瑞五金制品有限公司 | Compressor exhaust pipe |
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2012
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| GB727675A (en) * | 1951-06-25 | 1955-04-06 | Rorverken I Goteborg A B | Improvements relating to the flash welding of cast iron |
| CN2171822Y (en) * | 1992-08-27 | 1994-07-13 | 关绍勤 | Tube sheet evaporiating apparatus with drivepipe |
| JP2000055251A (en) * | 1998-08-04 | 2000-02-22 | Showa Alum Corp | Copper-aluminum connecting pipe |
| US20080277398A1 (en) * | 2007-05-09 | 2008-11-13 | Conocophillips Company | Seam-welded 36% ni-fe alloy structures and methods of making and using same |
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| CN101330174A (en) * | 2008-07-15 | 2008-12-24 | 梁楚欣 | Cuprum aluminum socket connector for conductivity as well as manufacturing method and use thereof |
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| CN102699504A (en) * | 2012-06-06 | 2012-10-03 | 东莞市金瑞五金制品有限公司 | Non-welding flux manufacturing method for reservoir of compressor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978317A (en) * | 2014-04-25 | 2014-08-13 | 张红霞 | Compounded welded tube as well as manufacturing method and application thereof |
| CN106481531A (en) * | 2015-08-27 | 2017-03-08 | 上海日立电器有限公司 | A kind of compressor exhaust pipe |
| CN115667819A (en) * | 2020-05-21 | 2023-01-31 | 大金工业株式会社 | Pressure vessel and refrigeration device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103032640B (en) | 2015-03-18 |
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Address after: Nancheng Industrial Zone Haomailu Daojiao town Guangdong city of Dongguan Province, No. 88 523000 Patentee after: DONGGUAN JINRUI HARDWARE CO., LTD. Address before: Nancheng Industrial Zone Haomailu Daojiao town Guangdong city of Dongguan Province, No. 88 523000 Patentee before: Dongguan Jinrui Hardware Products Co., Ltd. |