CN1174774A - Magnetic steel tin-soldering method - Google Patents
Magnetic steel tin-soldering method Download PDFInfo
- Publication number
- CN1174774A CN1174774A CN 96115939 CN96115939A CN1174774A CN 1174774 A CN1174774 A CN 1174774A CN 96115939 CN96115939 CN 96115939 CN 96115939 A CN96115939 A CN 96115939A CN 1174774 A CN1174774 A CN 1174774A
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- China
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- magnet steel
- tin
- magnetic steel
- soldering
- lead bonding
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- 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.)
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- Electroplating Methods And Accessories (AREA)
Abstract
The magnetic steel tin-lead bonding method is mainly characterized by that before tin-lead bonding, the magnetic steel is processed by electroplating, and the bake-oven tin-lead bonding is changed into liquid thermal fusion welding, e, g. the magnetic steels holding tin sheet between them are placed in heated liquor instead of bake-oven to implement thermal fusion welding of them. In order to implement batch process, the pretreatment of the magentic steel adopts acid-washing process instead of manual dressing process. Said invention possesses the advantages of saving electric power, raising efficiency and raising weld strength and uniformity.
Description
A kind of method of magnet steel welding belongs to the metal manufacture field.
On kilowatt-hour meter and other instruments, often use the magnet steel of soldering.Magnet steel soldering method commonly used now is the baking oven sweat soldering, and its step is as follows:
1. oxide layer is removed on the magnet steel surface of manually polishing.
2. tin sheet and scaling powder are clipped between the magnet steel to be welded, clip with anchor clamps.
3. the magnet steel that clips is put into baking oven and be heated to the fusing of tin sheet.
4. take out magnet steel from baking oven, remove anchor clamps, welding is finished.
The shortcoming that this method exists is that operating efficiency is lower, the time-consuming electricity that takes, and can only single-piece operate, can not batch machining.
The objective of the invention is to develop a kind of new magnet steel soldering method, overcome the shortcoming of said method.This method is:
1. pickling.Remove the greasy dirt on magnet steel surface with surfactant, carry out pickling then, remove the corrosion thing on surface.
2. electroplate.Plate one deck terne metal with common electro-plating method on the magnet steel surface.
3. the tin sheet is clipped between the good magnet steel of plating, clips with anchor clamps.
4. liquid hot melt welding.The magnet steel immersion that clips is heated in the liquid of uniform temperature, takes out after after a while, remove anchor clamps, welding is promptly finished.
The main distinction of this method and existing method has 3 points, and the one, replace manual grinding with pickling, the 2nd, replace the baking oven sweat soldering with the liquid hot melt welding, the 3rd, with increasing the operation of electroplating together before the sweat soldering.
The main points of this method are to electroplate the back to carry out the liquid hot melt welding.Magnet steel has had one deck terne metal through electroplating the rear surface, and this laminated gold has been created condition for welding, welding is carried out easily and made welding evenly, the liquid hot melt welding with baking oven sweat soldering compare, heat exchange efficiency is higher, homogeneous heating, the time can shorten.
The boiling point of liquid that uses should have stability preferably at least more than 300 degree, non-volatile, nontoxic.Can use the bigger organic matter of molecular weight.
Through evidence, the magnet steel weld strength that this method is welded out is significantly improved, and time and electric power are all saved than existing method, owing to saved artificial polishing, can realize batch machining.
Embodiment:
To ammeter smallclothes magnet steel, can electroplate and use the smallclothes tumble-plating process at normal temperatures with fluoride pickling 5-10 minute, condition is: electric current 2-10 ampere, rotating speed 7-12 rev/min, the time is 10-15 minute.Liquid is organic compound, and fluid temperature is a 260-280 degree Celsius, and the time of sweat soldering is 15-30 second.
Claims (3)
1. the method for a magnet steel soldering is characterized in that:
(1) one deck terne metal is plated on the surface at magnet steel before the welding,
(2) magnet steel that will accompany the tin sheet is immersed in and carries out sweat soldering in the liquid that is heated to uniform temperature.
2. magnet steel soldering method according to claim 1, the liquid that it is characterized in that used sweat soldering are nontoxic organic compounds.
3. magnet steel welding method according to claim 1 is characterized in that will carrying out surface acid-washing before magnet steel is electroplated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96115939 CN1174774A (en) | 1996-08-25 | 1996-08-25 | Magnetic steel tin-soldering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96115939 CN1174774A (en) | 1996-08-25 | 1996-08-25 | Magnetic steel tin-soldering method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1174774A true CN1174774A (en) | 1998-03-04 |
Family
ID=5123139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96115939 Pending CN1174774A (en) | 1996-08-25 | 1996-08-25 | Magnetic steel tin-soldering method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1174774A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772883A (en) * | 2016-04-18 | 2016-07-20 | 北京航天控制仪器研究所 | Tin soldering bonding method for gyro motor rotor magnetic steel pieces |
| CN106624236A (en) * | 2016-12-02 | 2017-05-10 | 武汉航空仪表有限责任公司 | Welding method for guaranteeing tight connection between magnetic steel for accelerometer and base |
-
1996
- 1996-08-25 CN CN 96115939 patent/CN1174774A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772883A (en) * | 2016-04-18 | 2016-07-20 | 北京航天控制仪器研究所 | Tin soldering bonding method for gyro motor rotor magnetic steel pieces |
| CN106624236A (en) * | 2016-12-02 | 2017-05-10 | 武汉航空仪表有限责任公司 | Welding method for guaranteeing tight connection between magnetic steel for accelerometer and base |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |