CN2514468Y - Demagnetizer - Google Patents
Demagnetizer Download PDFInfo
- Publication number
- CN2514468Y CN2514468Y CN 01276003 CN01276003U CN2514468Y CN 2514468 Y CN2514468 Y CN 2514468Y CN 01276003 CN01276003 CN 01276003 CN 01276003 U CN01276003 U CN 01276003U CN 2514468 Y CN2514468 Y CN 2514468Y
- Authority
- CN
- China
- Prior art keywords
- demagnetization
- degaussing
- coil
- demagnetization coil
- utility
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a degaussing device, which comprises an AC degaussing coil, wherein at least one couple of DC degaussing coils which are perpendicular with the AC degaussing coil are arranged in front of the AC degaussing coil, and the magnetic poles of the same sign of the coils face each other. The degaussing device can reduce the remanence of degaussed ferromagnetic substance to about 2Gs, and the degaussing effect is quite ideal. The utility model is particularly suitable for degaussing of various magnetized iron pipes and rods.
Description
Technical field:
The utility model relates to a kind of demagnetizer.
Background technology:
Ferromagnetic substance is magnetized in magnetic field easily, and its fragility of the ferromagnetic substance after the magnetization increases, and easily adsorbs ferromagnetic substance simultaneously, brings certain difficulty for processing and use.At present, the demagnetizing method of the ferromagnetic substance after the magnetization mainly is: allow magnetized ferromagnetic substance pass direct current demagnetization coil and AC demagnetization coil after the energising.To reach the demagnetization purpose, though this demagnetizing method has certain demagnetization effectiveness, its remanent magnetism is still very high, generally about 20Gs, still can't meet the demands.
Summary of the invention:
The demagnetizer that provides a kind of demagnetization effectiveness good is provided the purpose of this utility model.
For achieving the above object, a kind of demagnetizer described in the utility model comprises an AC demagnetization coil, is provided with a pair of and direct current demagnetization coil that like electricity magnetic pole relative vertical with the AC demagnetization coil before the AC demagnetization coil at least.
Owing to adopted technique scheme, magnetized ferromagnetic substance is the electromagnetic field by the relative direct current demagnetization coil centre of a pair of like electricity magnetic pole at first, and then passes the alternating electromagnetic field of AC demagnetization coil.After the demagnetization, its remanent magnetism only is that demagnetization effectiveness is very good about 2Gs.Especially be fit to demagnetization to various irony pipe fittings, rod member.
Description of drawings:
Fig. 1 is the schematic diagram of a kind of demagnetizer described in the utility model.
Embodiment:
As seen from Figure 1, a kind of demagnetizer described in the utility model comprises an AC demagnetization coil 1, is provided with a pair of and direct current demagnetization coil 2,2 ＇s that like electricity magnetic pole relative vertical with the AC demagnetization coil before AC demagnetization coil 1.
During operation, provide AC power to AC demagnetization coil 1 by AC power, relative by DC power supply to the electromagnetic pole same sex that direct current demagnetization coil 2,2 ＇ provide DC power supply and direct current demagnetization coil 2,2 ＇ are produced.Be that the S utmost point is extremely relative with S, perhaps the N utmost point is extremely relative with N.Allow magnetized ferromagnetic substance at first by the electromagnetic field in the middle of a pair of direct current degaussion coil 2,2 ＇, and then pass the alternating electromagnetic field of AC demagnetization coil 1, thereby reach the demagnetization purpose.
In order to make demagnetization effectiveness even more ideal, can after AC demagnetization coil 1, establish an AC demagnetization coil 1 again, also can before AC demagnetization coil 1, establish 2-3 direct current demagnetization coil 2,2 ＇s relative to the like electricity magnetic pole.
A kind of demagnetizer described in the utility model can make the remanent magnetism of the ferromagnetic substance after the demagnetization be reduced to about 2Gs, and demagnetization effectiveness is very good, especially is fit to the various irony pipe fittings that are magnetized, the demagnetization of rod member.
Claims (2)
1, a kind of demagnetizer comprises an AC demagnetization coil (1), it is characterized in that: be provided with a pair of and direct current demagnetization coil (2,2 ＇) that like electricity magnetic pole relative vertical with AC demagnetization coil (1) before at least at described AC demagnetization coil (1).
2, a kind of demagnetizer according to claim 1 is characterized in that: be provided with 2-3 before to direct current demagnetization coil (2,2 ＇) at described AC demagnetization coil (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01276003 CN2514468Y (en) | 2001-11-09 | 2001-11-09 | Demagnetizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01276003 CN2514468Y (en) | 2001-11-09 | 2001-11-09 | Demagnetizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2514468Y true CN2514468Y (en) | 2002-10-02 |
Family
ID=33680277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01276003 Expired - Fee Related CN2514468Y (en) | 2001-11-09 | 2001-11-09 | Demagnetizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2514468Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360715A (en) * | 2011-09-17 | 2012-02-22 | 张家港帕默超声电器有限公司 | Steel part AC (alternating current) demagnetization device |
-
2001
- 2001-11-09 CN CN 01276003 patent/CN2514468Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360715A (en) * | 2011-09-17 | 2012-02-22 | 张家港帕默超声电器有限公司 | Steel part AC (alternating current) demagnetization device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20021002 Termination date: 20091209 |