CN103264222A - Welding method for aluminium wire and copper wire for motor - Google Patents
Welding method for aluminium wire and copper wire for motor Download PDFInfo
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- CN103264222A CN103264222A CN2013101974656A CN201310197465A CN103264222A CN 103264222 A CN103264222 A CN 103264222A CN 2013101974656 A CN2013101974656 A CN 2013101974656A CN 201310197465 A CN201310197465 A CN 201310197465A CN 103264222 A CN103264222 A CN 103264222A
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Abstract
The invention provides a welding method for an aluminium wire and a copper wire for a motor. The welding method comprises the following steps that (1) plain thermit is concocted; (2) thermit reaction is triggered on the concocted plain thermit; (3) the aluminium wire and the copper wire are welded by means of metal melt produced by the thermit reaction. According to the welding method, welding of the aluminium wire and the copper wire for the motor is completed by means of the metal melt produced by reaction between aluminium and metallic oxide, operation is simple, welding speed is high, and quality is high.
Description
Technical field
The present invention relates to the aluminothermy welding technology field, specifically is the welding method that a kind of motor is used aluminum steel and copper cash.
Background technology
All not second to copper cash, difference is both resistivity difference to aluminum steel in various aspects such as temperature rise, electric current, efficiencies, so as long as directly strengthen according to the ratio of the resistivity line with aluminum steel, go up from the theory design, it is no problem that copper cash changes aluminum steel.But because metallic aluminium is extremely active, oxidation easily causes the tie point place problem of aluminum steel and copper cash a lot.
The method of attachment of existing copper aluminum steel comprises terminal riveted joint, solder stick welding, the welding of copper lead-in wire alclad etc., wherein the aluminum steel oxidation of terminal riveted joint is very fast, and because copper aluminium current potential differs greatly, in galvanization, can produce potential corrosion gradually, it is big that tie point resistance can become gradually, temperature rise uprises, and finally causes circuit obstructed; The solder stick welding is easy to generate the built-up welding dry joint, and because scaling powder can't gasify at short notice, can remain in the solder joint, and this mode is also unreliable; The welding of copper lead-in wire alclad is tin on the surperficial copper, and the aluminium that wraps in the inside is not gone up tin, and this mode is more unreliable.
In addition, the copper aluminium enamel-covered wire will carry out depainting earlier before being welded on welding, and at present the high temperature tin that adopt scald more, and after having scalded, aluminum steel will flavescence, blackening, can not enter scolding tin at all; The employing depainting machine that has, because high-speed friction, temperature is very high, and the aluminum steel behind depainting line on the one hand directly damages, and oxidation is serious on the other hand, surface stain, the also extremely difficult tin of going up.
Summary of the invention
The object of the present invention is to provide a kind of speed of welding is fast, weld strength is high, simple to operate motor with the welding method of aluminum steel and copper cash, to solve problems of the prior art.
Technical scheme of the present invention is:
A kind of motor welding method of aluminum steel and copper cash may further comprise the steps:
(1) modulation thermite;
(2) thermite is triggered thermit reaction;
(3) metal melt welding aluminum steel and the copper cash that utilizes thermit reaction to produce.
The described motor welding method of aluminum steel and copper cash, triggering thermit reaction adopt electricity triggering, hot triggering, laser triggers or the burning triggering.
The described motor welding method of aluminum steel and copper cash, described thermite is made of aluminium powder, metal oxide and auxiliary material, and gross mass is 10～50 μ g.
The described motor welding method of aluminum steel and copper cash, aluminium powder accounts for 20% in component by mass, and metal oxide is 55～60%, and all the other are auxiliary material.
The described motor welding method of aluminum steel and copper cash, it is 20～30 purpose aluminium powders that described aluminium powder is selected particle diameter for use.
The described motor welding method of aluminum steel and copper cash, described metal oxide selects for use particle diameter less than 100 purpose zinc oxide.
The described motor welding method of aluminum steel and copper cash, described metal oxide is selected di-iron trioxide or cupric oxide for use.
The described motor welding method of aluminum steel and copper cash, described auxiliary material comprises silica or calcium oxide.
The metal melt that the present invention utilizes aluminium and reactive metal oxide to produce is finished motor with the welding of aluminum steel and copper cash, did not need to carry out depainting and handle before welding, and simple to operate, speed of welding is fast, quality is high.
Description of drawings
Fig. 1 is the exemplary plot that adopts method welding of the present invention.
The specific embodiment
Further specify the present invention below in conjunction with specific embodiment.
Embodiment 1: as shown in Figure 1, the metal melt welding aluminum steel 1 and the copper cash 2 that utilize thermit reaction to produce, step is as follows:
(1) modulation thermite 3: thermite 3 gross masses are 10 μ g, contain particle diameter 20 purpose aluminium powders 20%, particle diameter 30 purpose zinc oxide 55%, and all the other are silica, calcium oxide additive component;
(2) earlier steel tray 4 levels are placed in the die cavity 51 of mould 5, then thermite 3 is placed on the steel tray 4, the aluminum steel 1 of line footpath 0.2mm to be welded and the copper cash 2 of line footpath 0.1mm are placed in the die cavity 52 of mould 5, make both be " one " word arrangement;
(3) apply about 12V DC voltage at an end of the thermite 3 of step (2) and trigger thermit reaction;
(4) metal melt of thermit reaction generation is by being flowed between aluminum steels 1 and the copper cash 2 by the steel tray 4 of its fusing, and the extruding weld seam carries out densification, and aluminum steel 1 and copper cash 2 are welded together, and clears up overlap, finishes welding.
Embodiment 2: as shown in Figure 1, the metal melt welding aluminum steel 1 and the copper cash 2 that utilize thermit reaction to produce, step is as follows:
(1) modulation thermite 3: thermite 3 gross masses are 30 μ g, contain particle diameter 20 purpose aluminium powders 20%, particle diameter 30 purpose zinc oxide 55%, and all the other are silica, calcium oxide additive component;
(2) earlier steel tray 4 levels are placed in the die cavity 51 of mould 5, then thermite 3 is placed on the steel tray 4, the aluminum steel 1 of line footpath 0.45mm to be welded and the copper cash 2 of line footpath 0.35mm are placed in the die cavity 52 of mould 5, make both be " one " word arrangement;
(3) apply about 12V DC voltage at an end of the thermite 3 of step (2) and trigger thermit reaction;
(4) metal melt of thermit reaction generation is by being flowed between aluminum steels 1 and the copper cash 2 by the steel tray 4 of its fusing, and the extruding weld seam carries out densification, and aluminum steel 1 and copper cash 2 are welded together, and clears up overlap, finishes welding.
Embodiment 3: as shown in Figure 1, the metal melt welding aluminum steel 1 and the copper cash 2 that utilize thermit reaction to produce, step is as follows:
(1) modulation thermite 3: thermite 3 gross masses are 50 μ g, contain particle diameter 20 purpose aluminium powders 20%, particle diameter 30 purpose zinc oxide 55%, and all the other are silica, calcium oxide additive component;
(2) earlier steel tray 4 levels are placed in the die cavity 51 of mould 5, then thermite 3 is placed on the steel tray 4, the aluminum steel 1 of line footpath 0.65mm to be welded and the copper cash 2 of line footpath 0.5mm are placed in the die cavity 52 of mould 5, make both be " one " word arrangement;
(3) apply about 12V DC voltage at an end of the thermite 3 of step (1) and trigger thermit reaction;
(4) metal melt of thermit reaction generation is by being flowed between aluminum steels 1 and the copper cash 2 by the steel tray 4 of its fusing, and the extruding weld seam carries out densification, and aluminum steel 1 and copper cash 2 are welded together, and clears up overlap, finishes welding.
The above embodiment only is that preferred embodiment of the present invention is described; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (8)
1. a motor is characterized in that: may further comprise the steps with the welding method of aluminum steel and copper cash:
(1) modulation thermite;
(2) thermite is triggered thermit reaction;
(3) metal melt welding aluminum steel and the copper cash that utilizes thermit reaction to produce.
2. motor according to claim 1 is characterized in that: the triggering of triggering thermit reaction employing electricity, heat triggering, laser triggering or burning triggering with the welding method of aluminum steel and copper cash.
3. motor according to claim 1 is with the welding method of aluminum steel and copper cash, and it is characterized in that: described thermite is made of aluminium powder, metal oxide and auxiliary material, and gross mass is 10～50 μ g.
4. motor according to claim 3 is with the welding method of aluminum steel and copper cash, and it is characterized in that: aluminium powder accounts for 20% in component by mass, and metal oxide is 55～60%, and all the other are auxiliary material.
5. motor according to claim 3 is with the welding method of aluminum steel and copper cash, and it is characterized in that: it is 20～30 purpose aluminium powders that described aluminium powder is selected particle diameter for use.
6. motor according to claim 3 is with the welding method of aluminum steel and copper cash, and it is characterized in that: described metal oxide selects for use particle diameter less than 100 purpose zinc oxide.
7. motor according to claim 3 is with the welding method of aluminum steel and copper cash, and it is characterized in that: described metal oxide is selected di-iron trioxide or cupric oxide for use.
8. motor according to claim 3 is with the welding method of aluminum steel and copper cash, and it is characterized in that: described auxiliary material comprises silica or calcium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101974656A CN103264222A (en) | 2013-05-24 | 2013-05-24 | Welding method for aluminium wire and copper wire for motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101974656A CN103264222A (en) | 2013-05-24 | 2013-05-24 | Welding method for aluminium wire and copper wire for motor |
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| CN103264222A true CN103264222A (en) | 2013-08-28 |
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| CN2013101974656A Pending CN103264222A (en) | 2013-05-24 | 2013-05-24 | Welding method for aluminium wire and copper wire for motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639589A (en) * | 2013-12-20 | 2014-03-19 | 武汉大学 | Aluminum-steel heat release welding method |
| CN107322157A (en) * | 2017-08-11 | 2017-11-07 | 山东电力建设第工程公司 | The exothermic welding method of ground wire in a kind of Amazon tropic rain forest |
| CN110961744A (en) * | 2019-11-15 | 2020-04-07 | 东莞市输变电工程公司 | Investment method |
| CN114309582A (en) * | 2021-12-17 | 2022-04-12 | 合肥波林新材料股份有限公司 | Copper-based powder metallurgy material and preparation method thereof |
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| CN1896331A (en) * | 2006-06-09 | 2007-01-17 | 曹大力 | Production of aluminum and copper-based alloy |
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| CN101745756A (en) * | 2009-12-18 | 2010-06-23 | 西安杰邦科技有限公司 | Molecular environment-friendly heat-release welding agent applicable to welding of copper conductor |
| CN102248280A (en) * | 2011-06-24 | 2011-11-23 | 中国科学院宁波材料技术与工程研究所 | Thermit reaction foil, manufacturing method thereof and application thereof to welding process |
| CN102500383A (en) * | 2011-11-23 | 2012-06-20 | 西安近代化学研究所 | Double oxide composite type super thermite and preparation method thereof |
| CN202539805U (en) * | 2012-05-03 | 2012-11-21 | 中建五局第三建设有限公司 | Similar or dissimilar metal heat emission welding connecting die |
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2013
- 2013-05-24 CN CN2013101974656A patent/CN103264222A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037855A (en) * | 1988-05-26 | 1989-12-13 | 昆明冶金机械厂 | Aluminithermic weld of cables |
| EP0947284A1 (en) * | 1998-04-03 | 1999-10-06 | Erico International Corporation | Aluminum welding process and composition for use in same |
| JP2003236684A (en) * | 2002-02-15 | 2003-08-26 | Nichiyu Giken Kogyo Co Ltd | Thermite welding tool |
| RU2323075C2 (en) * | 2005-12-16 | 2008-04-27 | Общество с ограниченной ответственностью "Электрохимизделия" | Apparatus for thermite welding of leads for electrochemical protection to main pipelines |
| CN1896331A (en) * | 2006-06-09 | 2007-01-17 | 曹大力 | Production of aluminum and copper-based alloy |
| RU2371289C1 (en) * | 2008-03-12 | 2009-10-27 | Государственное образовательное учреждение высшего профессионального образования "Уфимский государственный авиационный технический университет" | Composition for thermite welding |
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| CN102500383A (en) * | 2011-11-23 | 2012-06-20 | 西安近代化学研究所 | Double oxide composite type super thermite and preparation method thereof |
| CN202539805U (en) * | 2012-05-03 | 2012-11-21 | 中建五局第三建设有限公司 | Similar or dissimilar metal heat emission welding connecting die |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639589A (en) * | 2013-12-20 | 2014-03-19 | 武汉大学 | Aluminum-steel heat release welding method |
| CN103639589B (en) * | 2013-12-20 | 2016-04-27 | 武汉大学 | A kind of aluminium-steel exothermic welding method |
| CN107322157A (en) * | 2017-08-11 | 2017-11-07 | 山东电力建设第工程公司 | The exothermic welding method of ground wire in a kind of Amazon tropic rain forest |
| CN107322157B (en) * | 2017-08-11 | 2019-08-20 | 山东电力建设第一工程公司 | A kind of exothermic welding method being grounded in Amazon tropic rain forest |
| CN110961744A (en) * | 2019-11-15 | 2020-04-07 | 东莞市输变电工程公司 | Investment method |
| CN114309582A (en) * | 2021-12-17 | 2022-04-12 | 合肥波林新材料股份有限公司 | Copper-based powder metallurgy material and preparation method thereof |
| CN114309582B (en) * | 2021-12-17 | 2024-04-26 | 合肥波林新材料股份有限公司 | Copper-based powder metallurgy material and preparation method thereof |
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Address after: 230088 No. 96 science Avenue, hi tech Zone, Anhui, Hefei Applicant after: Whirlpool (China) Limited by Share Ltd Address before: 230088 No. 96 science Avenue, hi tech Zone, Anhui, Hefei Applicant before: Hefei Rongshida Sanyo Electric Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: HEFEI RONGSHIDA SANYO ELECTRIC CO., LTD. TO: WHIRLPOOL (CHINA) CO., LTD. |
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Application publication date: 20130828 |