CN106099601A - A kind of copper-aluminium transition wire clip soldering process - Google Patents
A kind of copper-aluminium transition wire clip soldering process Download PDFInfo
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- CN106099601A CN106099601A CN201610394668.8A CN201610394668A CN106099601A CN 106099601 A CN106099601 A CN 106099601A CN 201610394668 A CN201610394668 A CN 201610394668A CN 106099601 A CN106099601 A CN 106099601A
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- copper pipe
- aluminium sheet
- half round
- stannum
- round copper
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
- H01R4/625—Soldered or welded connections
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a kind of copper-aluminium transition wire clip soldering process, it comprises the following steps: S1, selection aluminium sheet, milling R groove on the top surface of aluminium sheet；S2, half round copper pipe；S3, the cleaning of aluminium sheet；S4, the cleaning of half round copper pipe；S5, it is placed on electric furnace and is heated to 400 ~ 450 DEG C, stand-by；The preparation of S6, solution of tin and zinc solution；S7, the preparation of copper pipe impregnation liquid；S9, will step S5 immerse in the mixed liquor in stannum pot at the aluminium sheet after heating and half round copper pipe in step S8, and take out aluminium sheet and be also positioned on workbench；S10, the preparation of copper-aluminium transition wire clip, from the pot of step S9, first take out half round copper pipe sticking stannum, zinc liquation, make R groove half arc of aluminium sheet on half arc alignment workbench of half round copper pipe again, then pressurize half round copper pipe 5 ~ 10s to discharge the air of contact portion with briquetting.The invention has the beneficial effects as follows: technique is simple, production cost is low, avoid having copper pipe obscission when 170 DEG C, ensure that copper pipe and aluminium sheet rate of engagement are up to 95%.
Description
Technical field
The present invention relates to the technical field of copper-aluminium transition wire clip in power transmission and transformation line, particularly a kind of copper-aluminium transition wire clip
Soldering process.
Background technology
Having the situation that a lot of copper is connected with aluminum in electric energy conversion system, this will use copper-aluminium transition wire clip.Such line
Folder is widely used typical copper aluminum interface unit in power industry.Copper-aluminium transition wire clip is used for bus leading and rolls off the production line and electricity
Gas equipment, the outlet terminal such as transformator, chopper, transformer, disconnecting switch, wall bushing etc. connects.Use copper-aluminium transition
Wire clamp, can avoid the problems such as a lot of conductivity problems and electrochemical corrosion, is to realize with aluminum for copper, saving copper material, thus reduces
The effective means of power transmission and transforming equipment cost.Copper-aluminium transition wire clip can be divided into two kinds of forms: dock and bridging type.Wherein dock
Wire clamp is eliminated rapidly because of its intrinsic properity defect, and bridging type wire clamp becomes main application form.Overlap joint
Formula wire clamp is to use soldering tech to apply sheet copper in aluminium material surface weldering to be fabricated by.Compared with dock wire clamp, bridging type wire clamp
Middle copper coin and aluminium sheet are integrated, and be possible not only to meet well the requirement of electric property, and mechanical strength is high, it is not easy to disconnected
Split inefficacy.
There is a lot of deficiency not yet in the soldering processes of copper-aluminium transition wire clip at present, thus easily causes the quality of Transition wire clip
Unstable.When wire clamp quality defect, burn into fracture and resistivity anomaly when it is on active service in power transmission and transformation line, can be occurred to raise
Etc. phenomenon, easily cause the damage of the equipment such as transformer station and be likely to cause the accidents such as power failure.Power transmission and transformation industry is sent out really
The accidents such as the large-area power-cuts giving birth to many causes wire clamp fracture failure and occur and device damage.Therefore, copper-aluminium transition wire clip is improved
Welding quality have great importance.From the point of view of the fracture accident of generation under service condition actual to wire clamp, cause copper aluminum
The reason that Transition wire clip lost efficacy mainly includes that decay resistance and intensity are less than two aspects.And the intensity of wire clamp, corrosion resistance
Brazing quality can be depended mainly on.
Conventional brazing technique can only ensure copper pipe and aluminium sheet rate of engagement 80%, and percent defective is high, and conventional brazing technique is at 170 C °
Time have copper pipe obscission.And when using blast weldering sample, complex process, production cost is high.
Summary of the invention
It is an object of the invention to overcome the shortcoming of prior art, it is provided that a kind of technique is simple, production cost is low, avoid
There is copper pipe obscission when 170 DEG C, ensure that copper pipe and aluminium sheet rate of engagement are up to the copper-aluminium transition wire clip soldering process of 95%.
The purpose of the present invention is achieved through the following technical solutions: a kind of copper-aluminium transition wire clip soldering process, it include with
Lower step:
S1, selection length are respectively the aluminium sheet of 16mm, 80mm, 70mm, milling R groove on the top surface of aluminium sheet, the half of R groove
Footpath is 9.5mm；
S2, half round copper pipe that selection is long, thick, radius is respectively 80mm, 3mm, 9.5mm；
S3, the cleaning of aluminium sheet, put into aluminium sheet in the sodium hydroxide solution of 10%, remove surface of aluminum plate by sodium hydroxide solution
On oil stain and foreign material, dipping 6 ~ 10min after take out, utilize clear water to clean the sodium hydroxide solution in surface of aluminum plate, it is achieved that
The cleaning of aluminium sheet；
S4, the cleaning of half round copper pipe, put in dust technology by half round copper pipe, removes the dirt in semicircle copper pipe surface by dust technology
Stain and copper oxide, take out after dipping 6 ~ 10min, utilize clear water to clean the dust technology in semicircle copper pipe surface, it is achieved that semicircle copper
The cleaning of pipe；
S5, will clean after aluminium sheet and half round copper pipe, be placed on electric furnace and be heated to 400 ~ 450 DEG C, stand-by；
The preparation of S6, solution of tin and zinc solution, first adds the stannum material of 75% and the zinc material of 25% in stannum pot, then is heated to by stannum pot
400 ~ 450 DEG C make stannum material and the fusing of zinc material, in pouring concentrated nitric acid into stannum pot subsequently and stir, through chemistry after a while
After reaction, can be prepared by solution of tin: the ratio of zinc solution is the mixed liquor of 3:1；
S7, the preparation of copper pipe impregnation liquid, in container, additional proportion is respectively water, butter of tin, ammonia chloride, water: butter of tin:
The ratio of ammonia chloride is 10 ~ 20:1 ~ 6:0.5 ~ 2, agitated uniformly after, can be prepared by copper pipe impregnation liquid；
S8, step S5 will immerse in copper pipe impregnation liquid half round copper pipe after heating, after 2 ~ 3min, take out half round copper pipe also
It is placed on electric furnace drying, immerses in copper pipe impregnation liquid after drying again, after 6 ~ 8s, half round copper pipe is taken out；
S9, will step S5 immerse in the mixed liquor in stannum pot, through 6 ~ 8s at the aluminium sheet after heating and half round copper pipe in step S8
Rear taking-up aluminium sheet, repeatedly brushes R groove subsequently with steel brush, makes solution of tin and zinc solution mix homogeneously in groove, is again dipped in mixed liquor,
After 1 ~ 2s, take out aluminium sheet and be positioned on workbench；
S10, the preparation of copper-aluminium transition wire clip, first take out half round copper pipe sticking stannum, zinc liquation from the pot of step S9, then make half
On half arc alignment workbench of round copper pipe, R groove half arc of aluminium sheet, then pressurizes half round copper pipe 5 ~ 10s to discharge contact site with briquetting
Point air, after the most uniformly fit in composition surface, remove remained on surface stannum, zinc liquation, complete cold true after, i.e. achieve copper aluminum
The preparation of Transition wire clip；
S11, copper-aluminium transition wire clip is carried out subsequent mechanical processing.
The invention have the advantages that present invention process is simple, production cost is low, avoid having copper pipe to come off when 170 DEG C
Phenomenon, ensure that copper pipe and aluminium sheet rate of engagement are up to 95%.
Detailed description of the invention
The present invention will be further described below, and protection scope of the present invention is not limited to the following stated:
Embodiment one: a kind of copper-aluminium transition wire clip soldering process, it comprises the following steps:
S1, selection length are respectively the aluminium sheet of 16mm, 80mm, 70mm, milling R groove on the top surface of aluminium sheet, the half of R groove
Footpath is 9.5mm；
S2, half round copper pipe that selection is long, thick, radius is respectively 80mm, 3mm, 9.5mm；
S3, the cleaning of aluminium sheet, put into aluminium sheet in the sodium hydroxide solution of 10%, remove surface of aluminum plate by sodium hydroxide solution
On oil stain and foreign material, dipping 6min after take out, utilize clear water to clean the sodium hydroxide solution in surface of aluminum plate, it is achieved that aluminium sheet
Cleaning；
S4, the cleaning of half round copper pipe, put in dust technology by half round copper pipe, removes the dirt in semicircle copper pipe surface by dust technology
Stain and copper oxide, take out after dipping 6min, utilize clear water to clean the dust technology in semicircle copper pipe surface, it is achieved that half round copper pipe
Clean；
S5, will clean after aluminium sheet and half round copper pipe, be placed on electric furnace and be heated to 400 DEG C, stand-by；
The preparation of S6, solution of tin and zinc solution, first adds the stannum material of 75% and the zinc material of 25% in stannum pot, then is heated to by stannum pot
400 DEG C make stannum material and the fusing of zinc material, in pouring concentrated nitric acid into stannum pot subsequently and stir, through chemical reaction after a while
After, can be prepared by solution of tin: the ratio of zinc solution is the mixed liquor of 3:1；
S7, the preparation of copper pipe impregnation liquid, in container, additional proportion is respectively water, butter of tin, ammonia chloride, water: butter of tin:
The ratio of ammonia chloride is 10:3:1, agitated uniformly after, can be prepared by copper pipe impregnation liquid；
S8, step S5 will immerse in copper pipe impregnation liquid half round copper pipe after heating, and after 2min, take out half round copper pipe and put
Electric furnace is dried, immerses again after drying in copper pipe impregnation liquid, after 6s, half round copper pipe is taken out；
S9, will step S5 immerse in the mixed liquor in stannum pot, after 6s at the aluminium sheet after heating and half round copper pipe in step S8
Take out aluminium sheet, repeatedly brush R groove subsequently with steel brush, make solution of tin and zinc solution mix homogeneously in groove, be again dipped in mixed liquor, warp
After 1s, take out aluminium sheet and be positioned on workbench；
S10, the preparation of copper-aluminium transition wire clip, first take out half round copper pipe sticking stannum, zinc liquation from the pot of step S9, then make half
On half arc alignment workbench of round copper pipe, R groove half arc of aluminium sheet, then pressurizes half round copper pipe 5s to discharge contact portion with briquetting
Air, after the most uniformly fitting in composition surface, remove remained on surface stannum, zinc liquation, complete cold really after, i.e. achieve copper aluminum mistake
The preparation of branch-cut bridge folder.This technique ensure that the rate of engagement of half round copper pipe and aluminium sheet is up to 95%, and conventional brazing technique can only be protected
Card copper pipe and aluminium sheet rate of engagement 80%, be therefore substantially better than conventional brazing technique, and this processing step is simple in addition, prepare copper aluminum mistake
Branch-cut bridge folder low cost.
S11, copper-aluminium transition wire clip is carried out subsequent mechanical processing.
Embodiment two: a kind of copper-aluminium transition wire clip soldering process, it comprises the following steps:
S1, selection length are respectively the aluminium sheet of 16mm, 80mm, 70mm, milling R groove on the top surface of aluminium sheet, the half of R groove
Footpath is 9.5mm；
S2, half round copper pipe that selection is long, thick, radius is respectively 80mm, 3mm, 9.5mm；
S3, the cleaning of aluminium sheet, put into aluminium sheet in the sodium hydroxide solution of 10%, remove surface of aluminum plate by sodium hydroxide solution
On oil stain and foreign material, dipping 8min after take out, utilize clear water to clean the sodium hydroxide solution in surface of aluminum plate, it is achieved that aluminium sheet
Cleaning；
S4, the cleaning of half round copper pipe, put in dust technology by half round copper pipe, removes the dirt in semicircle copper pipe surface by dust technology
Stain and copper oxide, take out after dipping 8min, utilize clear water to clean the dust technology in semicircle copper pipe surface, it is achieved that half round copper pipe
Clean；
S5, will clean after aluminium sheet and half round copper pipe, be placed on electric furnace and be heated to 430 DEG C, stand-by；
The preparation of S6, solution of tin and zinc solution, first adds the stannum material of 75% and the zinc material of 25% in stannum pot, then is heated to by stannum pot
430 DEG C make stannum material and the fusing of zinc material, in pouring concentrated nitric acid into stannum pot subsequently and stir, through chemical reaction after a while
After, can be prepared by solution of tin: the ratio of zinc solution is the mixed liquor of 3:1；
S7, the preparation of copper pipe impregnation liquid, in container, additional proportion is respectively water, butter of tin, ammonia chloride, water: butter of tin:
The ratio of ammonia chloride is 15:1:0.5, agitated uniformly after, can be prepared by copper pipe impregnation liquid；
S8, step S5 will immerse in copper pipe impregnation liquid half round copper pipe after heating, after 2.5min, take out half round copper pipe also
It is placed on electric furnace drying, immerses in copper pipe impregnation liquid after drying again, after 7s, half round copper pipe is taken out；
S9, will step S5 immerse in the mixed liquor in stannum pot, after 7s at the aluminium sheet after heating and half round copper pipe in step S8
Take out aluminium sheet, repeatedly brush R groove subsequently with steel brush, make solution of tin and zinc solution mix homogeneously in groove, be again dipped in mixed liquor, warp
After 1.5s, take out aluminium sheet and be positioned on workbench；
S10, the preparation of copper-aluminium transition wire clip, first take out half round copper pipe sticking stannum, zinc liquation from the pot of step S9, then make half
On half arc alignment workbench of round copper pipe, R groove half arc of aluminium sheet, then pressurizes half round copper pipe 8s to discharge contact portion with briquetting
Air, after the most uniformly fitting in composition surface, remove remained on surface stannum, zinc liquation, complete cold really after, i.e. achieve copper aluminum mistake
The preparation of branch-cut bridge folder,
S11, copper-aluminium transition wire clip is carried out subsequent mechanical processing.
Embodiment three:
A kind of copper-aluminium transition wire clip soldering process, it comprises the following steps:
S1, selection length are respectively the aluminium sheet of 16mm, 80mm, 70mm, milling R groove on the top surface of aluminium sheet, the half of R groove
Footpath is 9.5mm；
S2, half round copper pipe that selection is long, thick, radius is respectively 80mm, 3mm, 9.5mm；
S3, the cleaning of aluminium sheet, put into aluminium sheet in the sodium hydroxide solution of 10%, remove surface of aluminum plate by sodium hydroxide solution
On oil stain and foreign material, dipping 10min after take out, utilize clear water to clean the sodium hydroxide solution in surface of aluminum plate, it is achieved that aluminum
The cleaning of plate；
S4, the cleaning of half round copper pipe, put in dust technology by half round copper pipe, removes the dirt in semicircle copper pipe surface by dust technology
Stain and copper oxide, take out after dipping 10min, utilize clear water to clean the dust technology in semicircle copper pipe surface, it is achieved that half round copper pipe
Cleaning；
S5, will clean after aluminium sheet and half round copper pipe, be placed on electric furnace and be heated to 450 DEG C, stand-by；
The preparation of S6, solution of tin and zinc solution, first adds the stannum material of 75% and the zinc material of 25% in stannum pot, then is heated to by stannum pot
450 DEG C make stannum material and the fusing of zinc material, in pouring concentrated nitric acid into stannum pot subsequently and stir, through chemical reaction after a while
After, can be prepared by solution of tin: the ratio of zinc solution is the mixed liquor of 3:1；
S7, the preparation of copper pipe impregnation liquid, in container, additional proportion is respectively water, butter of tin, ammonia chloride, water: butter of tin:
The ratio of ammonia chloride is 20:6:2, agitated uniformly after, can be prepared by copper pipe impregnation liquid；
S8, step S5 will immerse in copper pipe impregnation liquid half round copper pipe after heating, and after 3min, take out half round copper pipe and be placed on
Dry on electric furnace, immerse again after drying in copper pipe impregnation liquid, after 8s, half round copper pipe is taken out；
S9, will step S5 immerse in the mixed liquor in stannum pot, after 8s at the aluminium sheet after heating and half round copper pipe in step S8
Take out aluminium sheet, repeatedly brush R groove subsequently with steel brush, make solution of tin and zinc solution mix homogeneously in groove, be again dipped in mixed liquor, warp
After 2s, take out aluminium sheet and be positioned on workbench；
S10, the preparation of copper-aluminium transition wire clip, first take out half round copper pipe sticking stannum, zinc liquation from the pot of step S9, then make half
On half arc alignment workbench of round copper pipe, R groove half arc of aluminium sheet, then pressurizes half round copper pipe 10s to discharge contact portion with briquetting
Air, after the most uniformly fitting in composition surface, remove remained on surface stannum, zinc liquation, complete cold really after, i.e. achieve copper aluminum mistake
The preparation of branch-cut bridge folder；
S11, copper-aluminium transition wire clip is carried out subsequent mechanical processing.
The above is only the preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form, is not to be taken as the eliminating to other embodiments, and can be used for other combinations various, amendment and environment, and can be at this
In the described contemplated scope of literary composition, it is modified by above-mentioned teaching or the technology of association area or knowledge.And those skilled in the art are entered
The change of row and change, the most all should be at the protection domains of claims of the present invention without departing from the spirit and scope of the present invention
In.
Claims (1)
1. a copper-aluminium transition wire clip soldering process, it is characterised in that: it comprises the following steps:
S1, selection length are respectively the aluminium sheet of 16mm, 80mm, 70mm, milling R groove on the top surface of aluminium sheet, the half of R groove
Footpath is 9.5mm；
S2, half round copper pipe that selection is long, thick, radius is respectively 80mm, 3mm, 9.5mm；
S3, the cleaning of aluminium sheet, put into aluminium sheet in the sodium hydroxide solution of 10%, remove surface of aluminum plate by sodium hydroxide solution
On oil stain and foreign material, dipping 6 ~ 10min after take out, utilize clear water to clean the sodium hydroxide solution in surface of aluminum plate, it is achieved that
The cleaning of aluminium sheet；
S4, the cleaning of half round copper pipe, put in dust technology by half round copper pipe, removes the dirt in semicircle copper pipe surface by dust technology
Stain and copper oxide, take out after dipping 6 ~ 10min, utilize clear water to clean the dust technology in semicircle copper pipe surface, it is achieved that semicircle copper
The cleaning of pipe；
S5, will clean after aluminium sheet and half round copper pipe, be placed on electric furnace and be heated to 400 ~ 450 DEG C, stand-by；
The preparation of S6, solution of tin and zinc solution, first adds the stannum material of 75% and the zinc material of 25% in stannum pot, then is heated to by stannum pot
400 ~ 450 DEG C make stannum material and the fusing of zinc material, in pouring concentrated nitric acid into stannum pot subsequently and stir, through chemistry after a while
After reaction, can be prepared by solution of tin: the ratio of zinc solution is the mixed liquor of 3:1；
S7, the preparation of copper pipe impregnation liquid, in container, additional proportion is respectively water, butter of tin, ammonia chloride, water: butter of tin:
The ratio of ammonia chloride is 10 ~ 20:1 ~ 6:0.5 ~ 2, agitated uniformly after, can be prepared by copper pipe impregnation liquid；
S8, step S5 will immerse in copper pipe impregnation liquid half round copper pipe after heating, after 2 ~ 3min, take out half round copper pipe also
It is placed on electric furnace drying, immerses in copper pipe impregnation liquid after drying again, after 6 ~ 8s, half round copper pipe is taken out；
S9, will step S5 immerse in the mixed liquor in stannum pot, through 6 ~ 8s at the aluminium sheet after heating and half round copper pipe in step S8
Rear taking-up aluminium sheet, repeatedly brushes R groove subsequently with steel brush, makes solution of tin and zinc solution mix homogeneously in groove, is again dipped in mixed liquor,
After 1 ~ 2s, take out aluminium sheet and be positioned on workbench；
S10, the preparation of copper-aluminium transition wire clip, first take out half round copper pipe sticking stannum, zinc liquation from the pot of step S9, then make half
On half arc alignment workbench of round copper pipe, R groove half arc of aluminium sheet, then pressurizes half round copper pipe 5 ~ 10s to discharge contact site with briquetting
Point air, after the most uniformly fit in composition surface, remove remained on surface stannum, zinc liquation, complete cold true after, i.e. achieve copper aluminum
The preparation of Transition wire clip；
S11, copper-aluminium transition wire clip is carried out subsequent mechanical processing.
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| CN201610394668.8A CN106099601B (en) | 2016-06-07 | 2016-06-07 | A kind of copper-aluminium transition wire clip soldering process |
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| CN201610394668.8A CN106099601B (en) | 2016-06-07 | 2016-06-07 | A kind of copper-aluminium transition wire clip soldering process |
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| CN106099601A true CN106099601A (en) | 2016-11-09 |
| CN106099601B CN106099601B (en) | 2018-03-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862691A (en) * | 2017-03-08 | 2017-06-20 | 贵州电网有限责任公司电力科学研究院 | A kind of copper-aluminium transition connection terminal soldering method |
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| CN103022851A (en) * | 2012-12-21 | 2013-04-03 | 东莞市金澜电工材料有限公司 | Novel copper-aluminum transition plate production technology covering copper on double faces at one end of aluminum plate |
| CN105364293A (en) * | 2014-08-12 | 2016-03-02 | 青岛百键城环保科技有限公司 | Copper and aluminum welding process |
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| CN101045268A (en) * | 2006-04-01 | 2007-10-03 | 扬州市飞鸿电材厂 | Process for flash welding copper-aluminium transition equipment cable clamp |
| CN101596632A (en) * | 2009-07-03 | 2009-12-09 | 西安交通大学 | The method for welding of aluminium and copper material in a kind of air atmosphere |
| CN201812934U (en) * | 2010-05-14 | 2011-04-27 | 安徽钛钴新金属有限公司 | Copper-aluminum transition connecting clamp adopting pressing connection |
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| CN106862691A (en) * | 2017-03-08 | 2017-06-20 | 贵州电网有限责任公司电力科学研究院 | A kind of copper-aluminium transition connection terminal soldering method |
| CN106862691B (en) * | 2017-03-08 | 2019-02-15 | 贵州电网有限责任公司电力科学研究院 | A kind of copper-aluminium transition connection terminal soldering method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106099601B (en) | 2018-03-30 |
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