CN106041097A - Copper and iron powder metallurgical pipe and preparing method and application thereof - Google Patents
Copper and iron powder metallurgical pipe and preparing method and application thereof Download PDFInfo
- Publication number
- CN106041097A CN106041097A CN201610581161.3A CN201610581161A CN106041097A CN 106041097 A CN106041097 A CN 106041097A CN 201610581161 A CN201610581161 A CN 201610581161A CN 106041097 A CN106041097 A CN 106041097A
- Authority
- CN
- China
- Prior art keywords
- copper
- iron powder
- welding
- ferrum
- pipe
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
- B22F5/106—Tube or ring forms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
Abstract
The invention relates to the technical field of air conditioner accessories, in particular to a copper and iron powder metallurgical pipe and a preparing method and an application thereof. The copper and iron powder metallurgical pipe comprises a metallurgical pipe body, the metallurgical pipe body is made from copper powder and iron powder or stainless steel powder, the metallurgical pipe body comprises a copper welding end and an iron welding end, and a boss is fixed to the iron welding end. The copper and iron powder metallurgical pipe can be separately well welded with a copper material component and an iron material component, so that welding cost and difficulty are reduced, and welding quality and efficiency are improved. The copper and iron powder metallurgical pipe is friendly to environment, saving in energy, simple in structure, convenient to use and low in cost.
Description
Technical field
The present invention relates to air conditioner parts technical field, be specifically related to a kind of copper iron powder metallurgy pipe and preparation method thereof and answer
With.
Background technology
At present, air condition compressor exhaust pipe, suction nozzle and air conditioner piping all use pure copper tube, and real by gas brazing
Now associate the welding of component with compressor top cover etc..Owing to pure copper tube cost is high, soldering need to use silver solder and phos copper, and
Working environment is severe, and gas brazing welding efficiency is low, and quality leakage fraction defective is high.
Summary of the invention
In order to overcome shortcoming and defect present in prior art, it is an object of the invention to provide a kind of copper iron powder smelting
Jin Guan, this copper iron powder metallurgy pipe can weld with copper material parts and ferrum multimaterial component the most well, reduces welding
Cost and difficulty, improve welding quality and efficiency, environmental protection and energy saving, and simple in construction is easy to use, with low cost.
Another object of the present invention is to provide the preparation method of a kind of copper iron powder metallurgy pipe, this preparation method step letter
Single, convenient operation and control, steady quality, production efficiency is high, and production cost is low, can large-scale industrial production.
It is also an object of the present invention to provide the application of a kind of copper iron powder metallurgy pipe.
The purpose of the present invention is achieved through the following technical solutions: a kind of copper iron powder metallurgy pipe, including metallurgical tube body, institute
Stating metallurgical tube body to be made up of copper powder and iron powder or copper powder and stainless steel powder, metallurgical tube body includes brazing end and ferrum welding
End, ferrum welding ends is fixed with boss.The arranging of boss can realize the ferrum welding ends ferrum upper cover well with compressor of air conditioner and weld
Connect.
The metallurgical tube body of the present invention is made up of copper powder and iron powder, and metallurgical tube body includes brazing end and ferrum welding ends,
Can weld with copper material parts and ferrum multimaterial component the most well, reduce welding cost and difficulty, improve welding
Quality and efficiency, environmental protection and energy saving, simple in construction, easy to use, with low cost.
Preferably, described metallurgical tube body is formed by copper powder and iron powder mixing compacting, the brazing end of metallurgical tube body
Iron powder weight content is less than 50%, and the copper powder weight content of ferrum welding ends is less than 30%.
The present invention is by controlling less than 50% by the iron powder weight content of the brazing end of metallurgical tube body so that brazing
Connect end can weld with copper material parts well；The present invention is by controlling the copper powder weight content of ferrum welding ends little
In 30% so that ferrum welding ends can weld with ferrum multimaterial component well.
Another is preferred, and described metallurgical tube body also includes being arranged between described brazing end and described ferrum welding ends
Middle transition section, the brazing end of metallurgical tube body is formed by copper powder compacting, and ferrum welding ends is formed by iron powder compacting, middle transition
Section is formed by copper powder and iron powder mixing compacting.
The present invention by use by copper powder compacting brazing end so that brazing end can well with copper material
Parts weld；The present invention by use by iron powder compacting ferrum welding ends so that ferrum welding ends can well with
Ferrum multimaterial component welds.The present invention is mixed the middle transition section of compacting, Ke Yishi by using by copper powder and iron powder
Now by the brazing end of copper powder compacting and the good transition of the ferrum welding ends by iron powder compacting, easy to process, cost
Low.
The preparation method of a kind of copper iron powder metallurgy pipe, comprises the steps:
(1) raw material prepares: weigh copper powder and iron powder the most respectively as raw material, standby；
(2) mould prepares: gets out the mould needed for copper iron powder metallurgy pipe is suppressed and installs；
(3) extruded: copper powder and iron powder to be heated pressurization extrusion molding, prepares semi-finished product；
(4) sealing pores: carry out semi-finished product aoxidizing sealing pores, prepare copper iron powder metallurgy pipe；
(5) machining: the ferrum welding ends of copper iron powder metallurgy pipe carries out machining, removes the sealing of hole on ferrum welding ends surface
Oxide layer.
Preferably, in described step (1), copper powder is water atomization copper powder or copper reduction, and iron powder is water-atomized iron powder or goes back
The particle diameter of former iron powder, copper powder and iron powder is all at below 1mm.
The present invention by using water atomization copper powder or copper reduction, water-atomized iron powder or reduced iron powder, and control copper powder and
The particle diameter of iron powder all at below 1mm, the brazing end of the metallurgical tube body prepared and ferrum welding ends can distinguish well with copper material
Matter parts and ferrum multimaterial component weld, and reduce welding cost and difficulty, improve welding quality and efficiency.
In described step (2), mould can use vertical merotype sample or horizontal parting style.
Preferably, in described step (3), the temperature of heating is 1000-1080 DEG C, and the pressure of pressurization is 270-310MPa.
The present invention is by controlling at 1000-1080 DEG C by the temperature of heating, and the Stress control of pressurization is at 270-310MPa, prepared copper ferrum
The electroplating equipment wielding machine intensity of powder metallurgy pipe is high by more than 40%, and compressive resistance intensity is high by more than 50%.
Preferably, in described step (4), the temperature of oxidation sealing of hole is 400-600 DEG C, and the time is 45-75min, sealing of hole ring
Border is the air pressure enclosed environment at below 16MPa.The present invention by by oxidation sealing of hole temperature control at 400-600 DEG C, the time
Controlling at 45-75min, prepared copper iron powder metallurgy pipe has preferable hardness and decay resistance.
Preferably, step (40) boss forming is also included after described step (4): copper iron powder metallurgy pipe is used punch press
Punch forming.The boss of the present invention can use 40t Presser Dashing molded, it is possible to directly when the pressurization extruding of powder metallurgy pipe in the lump
Molding.
A kind of copper iron powder metallurgy pipe is used for the pipe arrangement of air-conditioning, expansion at the application of air-conditioning, described copper iron powder metallurgy pipe
Valve and cross valve connecting tube, and the exhaustor of compressor of air conditioner and suction nozzle.
Preferably, the brazing end of described metallurgical tube body is by using electric welding, argon arc welding, plasma weldering, Laser Welding, height
Frequency weldering, CO2Protection weldering, friction welding (FW) or flash butt welding are welded with the brazing end of copper pipe or copper iron powder metallurgy pipe, ferrum welding ends
By the way of electric resistance welding, the ferrum upper cover with compressor of air conditioner welds.
The beneficial effects of the present invention is: the copper iron powder metallurgy pipe of the present invention can distinguish well with copper material parts and
Ferrum multimaterial component welds, and compared with employing silver solder between existing technique iron/copper material and phos copper, not only reduces weldering
Being connected into this and welding difficulty, and its electroplating equipment wielding machine intensity is high by more than 40%, compressive resistance intensity is high by more than 50%, and welding efficiency carries
High by more than 50%, weld airtight leakage fraction defective and decline more than 80%, reduce welding cost and difficulty, improve welding quality
And efficiency, environmental protection and energy saving, simple in construction, easy to use, with low cost.
The preparation method step of the present invention is simple, convenient operation and control, steady quality, and production efficiency is high, and production cost is low,
Can large-scale industrial production.
Accompanying drawing explanation
Fig. 1 is the sectional view of metallurgical tube body described in the embodiment of the present invention 1.
Sectional view when Fig. 2 is that described in the embodiment of the present invention 1, metallurgical tube body welds with the ferrum upper cover of compressor of air conditioner.
Fig. 3 is the sectional view of metallurgical tube body described in the embodiment of the present invention 2.
Sectional view when Fig. 4 is that described in the embodiment of the present invention 2, metallurgical tube body welds with the ferrum upper cover of compressor of air conditioner.
Reference is: 1 metallurgical tube body, 10 boss, 11 brazing ends, 12 ferrum welding ends, 13 centres
Changeover portion, 20 ferrum upper covers.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, below in conjunction with embodiment and accompanying drawing 1-4, the present invention is made further
Explanation, the content that embodiment is mentioned not limitation of the invention.
Embodiment 1
See Fig. 1-2, a kind of copper iron powder metallurgy pipe, including metallurgical tube body 1, described metallurgical tube body 1 by copper powder and iron powder or
Copper powder and stainless steel powder are made, and metallurgical tube body 1 includes brazing end 11 and ferrum welding ends 12, and ferrum welding ends 12 is fixed with boss
10。
Described metallurgical tube body 1 is formed by copper powder and iron powder mixing compacting, the iron powder of the brazing end 11 of metallurgical tube body 1
Weight content is less than 50%, concrete, the iron powder weight content of brazing end 11 can be 45%, 40%, 35%, 30%, 25%, 20%,
15%, 10% or 5%；The copper powder weight content of ferrum welding ends 12 is less than 30%, and concrete, the copper powder weight content of ferrum welding ends 12 can
Think 25%, 20%, 15%, 10% or 5%.
Another kind of the present invention preferably embodiment is: above-mentioned iron powder stainless steel powder replaces.The most described metallurgical tube body 1
Being formed by copper powder and stainless steel powder mixing compacting, the stainless steel powder weight content of the brazing end 11 of metallurgical tube body 1 is less than
50%, the copper powder weight content of ferrum welding ends 12 is less than 30%.
The stainless steel powder of the present invention can also use the alloy powder that other iron-holder is bigger to replace, it would however also be possible to employ ferrum
The mixture of at least two composition in the alloy powder that powder, iron-holder are bigger replaces, such as: use iron powder and stainless steel powder composition
Mixture etc., the most any obvious replacement all protection scope of the present invention it
In.
A kind of copper iron powder metallurgy pipe is used for the pipe arrangement of air-conditioning, expansion at the application of air-conditioning, described copper iron powder metallurgy pipe
Valve and cross valve connecting tube, and the exhaustor of compressor of air conditioner and suction nozzle.
The brazing end 11 of described metallurgical tube body 1 is by using electric welding, argon arc welding, plasma weldering, Laser Welding, high frequency
Weldering, CO2Protection weldering, friction welding (FW) or flash butt welding are welded with the brazing end 11 of copper pipe or copper iron powder metallurgy pipe, ferrum welding ends
12 by the way of electric resistance welding ferrum upper cover 20 with compressor of air conditioner weld.
Embodiment 2
See that Fig. 3-4, the present embodiment are with the difference of above-described embodiment 1: described metallurgical tube body 1 also includes being arranged at institute
Stating the middle transition section 13 between brazing end 11 and described ferrum welding ends 12, the brazing end 11 of metallurgical tube body 1 is by copper powder
Compacting forms, and ferrum welding ends 12 is formed by iron powder compacting, and middle transition section 13 is formed by copper powder and iron powder mixing compacting.
Another kind of the present invention preferably embodiment is: above-mentioned iron powder stainless steel powder replaces.The most described metallurgical tube body 1
Brazing end 11 formed by copper powder compacting, ferrum welding ends 12 is formed by stainless steel powder compacting, middle transition section 13 by copper powder and
Stainless steel powder mixing compacting forms.
Embodiment 3
The preparation method of a kind of copper iron powder metallurgy pipe, comprises the steps:
(1) raw material prepares: weigh copper powder and iron powder the most respectively as raw material, standby；
(2) mould prepares: gets out the mould needed for copper iron powder metallurgy pipe is suppressed and installs；
(3) extruded: copper powder and iron powder to be heated pressurization extrusion molding, prepares semi-finished product；
(4) sealing pores: carry out semi-finished product aoxidizing sealing pores, prepare copper iron powder metallurgy pipe；
(5) machining: the ferrum welding ends 12 of copper iron powder metallurgy pipe carries out machining, removes ferrum welding ends 12 surface
Sealing of hole oxide layer.
In described step (1), copper powder is water atomization copper powder, and iron powder is that the particle diameter of water-atomized iron powder, copper powder and iron powder is
500μm。
In described step (2), mould can use vertical merotype sample.
In described step (3), the temperature of heating is 1000 DEG C, and the pressure of pressurization is 310MPa.
In described step (4), the temperature of oxidation sealing of hole is 400 DEG C, and the time is 75min, and sealing of hole environment is that air pressure is at 15MPa
Enclosed environment.
Embodiment 4
The present embodiment is with the difference of above-described embodiment 3:
In described step (1), copper powder is copper reduction, and iron powder is that the particle diameter of reduced iron powder, copper powder and iron powder is 100 μm.
In described step (2), mould can use horizontal parting style.
In described step (3), the temperature of heating is 1020 DEG C, and the pressure of pressurization is 300MPa.
In described step (4), the temperature of oxidation sealing of hole is 450 DEG C, and the time is 65min, and sealing of hole environment is that air pressure is at 12MPa
Enclosed environment.
Embodiment 5
The present embodiment is with the difference of above-described embodiment 3:
In described step (1), copper powder is water atomization copper powder, and iron powder is that the particle diameter of reduced iron powder, copper powder and iron powder is 50 μm.
In described step (2), mould can use vertical merotype sample.
In described step (3), the temperature of heating is 1040 DEG C, and the pressure of pressurization is 290MPa.
In described step (4), the temperature of oxidation sealing of hole is 500 DEG C, and the time is 60min, and sealing of hole environment is that air pressure is at 10MPa
Enclosed environment.
Embodiment 6
The present embodiment is with the difference of above-described embodiment 3:
In described step (1), copper powder is copper reduction, and iron powder is that the particle diameter of water-atomized iron powder, copper powder and iron powder is 10 μm.
In described step (2), mould can use horizontal parting style.
In described step (3), the temperature of heating is 1060 DEG C, and the pressure of pressurization is 280MPa.
In described step (4), the temperature of oxidation sealing of hole is 550 DEG C, and the time is 55min, and sealing of hole environment is that air pressure is at 8MPa
Enclosed environment.
Embodiment 7
The present embodiment is with the difference of above-described embodiment 3:
In described step (1), copper powder is water atomization copper powder, and iron powder is that the particle diameter of water-atomized iron powder, copper powder and iron powder is 1 μm.
In described step (2), mould can use vertical merotype sample.
In described step (3), the temperature of heating is 1080 DEG C, and the pressure of pressurization is 270MPa.
In described step (4), the temperature of oxidation sealing of hole is 600 DEG C, and the time is 45min, and sealing of hole environment is that air pressure is at 5MPa
Enclosed environment.
Embodiment 8
The present embodiment is with the difference of above-described embodiment 3-7: also include that step (40) boss 10 becomes after described step (4)
Type: use Presser Dashing molded copper iron powder metallurgy pipe.
Above-described embodiment is the present invention preferably implementation, and in addition, the present invention can realize with alternate manner,
Without departing from obvious replacement any on the premise of present inventive concept all within protection scope of the present invention.
Claims (10)
1. a copper iron powder metallurgy pipe, including metallurgical tube body, it is characterised in that: described metallurgical tube body is by copper powder and iron powder
Or copper powder and stainless steel powder make, metallurgical tube body includes brazing end and ferrum welding ends, and ferrum welding ends is fixed with boss.
A kind of copper iron powder metallurgy pipe the most according to claim 1, it is characterised in that: described metallurgical tube body by copper powder and
Iron powder mixing compacting forms, and the iron powder weight content of the brazing end of metallurgical tube body is less than 50%, the copper powder weight of ferrum welding ends
Content is less than 30%.
A kind of copper iron powder metallurgy pipe the most according to claim 1, it is characterised in that: described metallurgical tube body also includes setting
Being placed in the middle transition section between described brazing end and described ferrum welding ends, the brazing end of metallurgical tube body is suppressed by copper powder
Forming, ferrum welding ends is formed by iron powder compacting, and middle transition section is formed by copper powder and iron powder mixing compacting.
4. the preparation method of a kind of copper iron powder metallurgy pipe as described in any one of claim 1-3, it is characterised in that: include as
Lower step:
(1) raw material prepares: weigh copper powder and iron powder the most respectively as raw material, standby；
(2) mould prepares: gets out the mould needed for copper iron powder metallurgy pipe is suppressed and installs；
(3) extruded: copper powder and iron powder to be heated pressurization extrusion molding, prepares semi-finished product；
(4) sealing pores: carry out semi-finished product aoxidizing sealing pores, prepare copper iron powder metallurgy pipe；
(5) machining: the ferrum welding ends of copper iron powder metallurgy pipe carries out machining, removes the sealing of hole on ferrum welding ends surface
Oxide layer.
5. according to the preparation method of a kind of copper iron powder metallurgy pipe described in any one of claim 4, it is characterised in that: described step
Suddenly in (1), copper powder is water atomization copper powder or copper reduction, and iron powder is water-atomized iron powder or reduced iron powder；In described step (2),
Mould can use vertical merotype sample or horizontal parting style.
6. according to the preparation method of a kind of copper iron powder metallurgy pipe described in any one of claim 4, it is characterised in that: described step
Suddenly in (3), the temperature of heating is 1000-1080 DEG C, and the pressure of pressurization is 270-310MPa.
7. according to the preparation method of a kind of copper iron powder metallurgy pipe described in any one of claim 4, it is characterised in that: described step
Suddenly, in (4), the temperature of oxidation sealing of hole is 400-600 DEG C, and the time is 45-75min, and sealing of hole environment is that air pressure is below 16MPa's
Enclosed environment.
8. according to the preparation method of a kind of copper iron powder metallurgy pipe described in any one of claim 4, it is characterised in that: described step
Suddenly step (40) boss forming is also included after (4): use Presser Dashing molded copper iron powder metallurgy pipe.
9. a kind of copper iron powder metallurgy pipe as described in any one of claim 1-3 is in the application of air-conditioning, it is characterised in that: described
Copper iron powder metallurgy pipe is for the pipe arrangement of air-conditioning, expansion valve and cross valve connecting tube, and the exhaustor of compressor of air conditioner and suction
Trachea.
A kind of copper iron powder metallurgy pipe the most according to claim 9 is in the application of air-conditioning, it is characterised in that: described metallurgy
The brazing end of tube body is by using electric welding, argon arc welding, plasma weldering, Laser Welding, ratio-frequency welding, CO2Protection weldering, friction welding (FW) or
Flash butt welding is welded with the brazing end of copper pipe or copper iron powder metallurgy pipe, ferrum welding ends by the way of electric resistance welding with air-conditioning pressure
The ferrum upper cover welding of contracting machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610581161.3A CN106041097B (en) | 2016-07-22 | 2016-07-22 | A kind of copper and iron powder metallurgy pipe and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610581161.3A CN106041097B (en) | 2016-07-22 | 2016-07-22 | A kind of copper and iron powder metallurgy pipe and its application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106041097A true CN106041097A (en) | 2016-10-26 |
| CN106041097B CN106041097B (en) | 2019-11-29 |
Family
ID=57418367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610581161.3A Active CN106041097B (en) | 2016-07-22 | 2016-07-22 | A kind of copper and iron powder metallurgy pipe and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106041097B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159897A (en) * | 2017-05-02 | 2017-09-15 | 东莞市金瑞五金股份有限公司 | A kind of manufacture method of copper and iron powder metallurgy pipe and its application |
| CN107263026A (en) * | 2017-06-13 | 2017-10-20 | 东莞市金瑞五金股份有限公司 | A kind of production technology of compressor suction duct |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4486385A (en) * | 1980-03-14 | 1984-12-04 | Nyby Uddeholm Ab | Tubular composite elements processes and a pressing for their production |
| JP2001214231A (en) * | 2000-01-31 | 2001-08-07 | Kubota Corp | Heat exchange tube for high temperature gas furnace and its producing method |
| CN1348841A (en) * | 2000-10-13 | 2002-05-15 | 王宏奎 | Manufacture of cold rolled face bend pipe |
| CN1959242A (en) * | 2006-08-11 | 2007-05-09 | 广东科龙电器股份有限公司 | Integral type air conditioner of using refrigeration pipes made from aluminum |
| CN200979033Y (en) * | 2006-12-04 | 2007-11-21 | 中国科学院广州能源研究所 | Multiple-unit tube for connecting between metal containers |
| CN101511521A (en) * | 2006-09-06 | 2009-08-19 | 阿尔斯托姆科技有限公司 | Dissimilar metal transition for superheater or reheater tubes |
| CN102407410A (en) * | 2011-11-29 | 2012-04-11 | 东莞市金瑞五金制品有限公司 | Resistance welding tube and manufacturing method and application thereof |
| CN102407408A (en) * | 2011-09-23 | 2012-04-11 | 南京工业大学 | Welding joint suitable for welding dissimilar metal materials and preparation method thereof |
| CN203115316U (en) * | 2013-03-21 | 2013-08-07 | 新昌县丰亿电器有限公司 | Air conditioner branching pipe set |
| CN205001146U (en) * | 2015-08-27 | 2016-01-27 | 上海日立电器有限公司 | Exhaust pipe of compressor |
-
2016
- 2016-07-22 CN CN201610581161.3A patent/CN106041097B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4486385A (en) * | 1980-03-14 | 1984-12-04 | Nyby Uddeholm Ab | Tubular composite elements processes and a pressing for their production |
| JP2001214231A (en) * | 2000-01-31 | 2001-08-07 | Kubota Corp | Heat exchange tube for high temperature gas furnace and its producing method |
| CN1348841A (en) * | 2000-10-13 | 2002-05-15 | 王宏奎 | Manufacture of cold rolled face bend pipe |
| CN1959242A (en) * | 2006-08-11 | 2007-05-09 | 广东科龙电器股份有限公司 | Integral type air conditioner of using refrigeration pipes made from aluminum |
| CN101511521A (en) * | 2006-09-06 | 2009-08-19 | 阿尔斯托姆科技有限公司 | Dissimilar metal transition for superheater or reheater tubes |
| CN200979033Y (en) * | 2006-12-04 | 2007-11-21 | 中国科学院广州能源研究所 | Multiple-unit tube for connecting between metal containers |
| CN102407408A (en) * | 2011-09-23 | 2012-04-11 | 南京工业大学 | Welding joint suitable for welding dissimilar metal materials and preparation method thereof |
| CN102407410A (en) * | 2011-11-29 | 2012-04-11 | 东莞市金瑞五金制品有限公司 | Resistance welding tube and manufacturing method and application thereof |
| CN203115316U (en) * | 2013-03-21 | 2013-08-07 | 新昌县丰亿电器有限公司 | Air conditioner branching pipe set |
| CN205001146U (en) * | 2015-08-27 | 2016-01-27 | 上海日立电器有限公司 | Exhaust pipe of compressor |
Non-Patent Citations (4)
| Title |
|---|
| 崔建民: "《钢铁粉末》", 31 January 2012, 中南大学出版社 * |
| 王建中 等: "《高级热处理工技术与实例》", 31 July 2007, 江苏科学技术出版社 * |
| 王杨: "《飞行器制造工艺与装备》", 30 June 2015, 哈尔滨工业大学出版社 * |
| 韩凤麟: "《粉末冶金手册 上》", 31 May 2012, 冶金工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159897A (en) * | 2017-05-02 | 2017-09-15 | 东莞市金瑞五金股份有限公司 | A kind of manufacture method of copper and iron powder metallurgy pipe and its application |
| CN107263026A (en) * | 2017-06-13 | 2017-10-20 | 东莞市金瑞五金股份有限公司 | A kind of production technology of compressor suction duct |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106041097B (en) | 2019-11-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107999991B (en) | High-entropy flux-cored wire for titanium-steel MIG welding and preparation method thereof | |
| CN108161278B (en) | High-entropy flux-cored wire for aluminum-steel MIG welding and preparation method thereof | |
| CN108161277B (en) | High-entropy flux-cored wire for aluminum-steel submerged arc welding and preparation method thereof | |
| CN102407408A (en) | Welding joint suitable for welding dissimilar metal materials and preparation method thereof | |
| CN102909489B (en) | A kind of connect carbide alloy and steel chilling solder and preparation method and method of attachment | |
| CN103639619B (en) | A kind of preparation method of the high-entropy alloy welding wire welded with steel TIG for titanium | |
| CN101176955B (en) | Soldering wire for high-strength aluminum copper alloy | |
| CN101284336A (en) | Argon-arc welding-braze welding composite welding method for connecting the titanium alloy and steel | |
| CN106041097A (en) | Copper and iron powder metallurgical pipe and preparing method and application thereof | |
| CN109454321B (en) | Hot isostatic pressing diffusion connection method for tungsten/steel cylinder structural member | |
| CN108161276B (en) | High-entropy flux-cored wire for magnesium-steel MIG welding and preparation method thereof | |
| CN101885101B (en) | Method for welding casting red copper oxygen lance spray nozzle | |
| CN103602983B (en) | A kind of processing method of copper-chromium alloy surface modification | |
| CN101758364B (en) | Method for manufacturing powder metallurgy supporting seat | |
| CN103170799A (en) | Preparation method of powder metallurgy support seat | |
| CN104942462B (en) | Titanium pipe line steel welding Cu V Nb welding wires and preparation method thereof | |
| CN101758363B (en) | Manufacture method of powder metallurgy support | |
| CN106238948A (en) | Titanium pipe line steel welding Cu Ag Zr welding wire and preparation method thereof | |
| CN104907734B (en) | Titanium tube line steel composite board flux-cored wire used for welding and preparation method thereof | |
| CN108673067A (en) | A kind of production method of bearing of compressor | |
| CN108673066A (en) | A kind of production method of bearing of compressor | |
| CN105463240A (en) | Preparation method of copper-chromium electrical contact material | |
| CN111975241A (en) | Nickel-manganese-chromium-cobalt-boron alloy brazing filler metal powder and preparation method thereof | |
| CN115287540B (en) | Powder metallurgy duplex stainless steel suitable for welding and preparation method and welding part thereof | |
| CN104907736B (en) | Titanium pipe line steel welding Cu Ag Nb welding wires and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |