CN1096367A - Magnetism and insulation property treating method for stator magenetic core of automatic recording instrument - Google Patents
Magnetism and insulation property treating method for stator magenetic core of automatic recording instrument Download PDFInfo
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- CN1096367A CN1096367A CN 93106840 CN93106840A CN1096367A CN 1096367 A CN1096367 A CN 1096367A CN 93106840 CN93106840 CN 93106840 CN 93106840 A CN93106840 A CN 93106840A CN 1096367 A CN1096367 A CN 1096367A
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Abstract
A kind of magnetic circuit assembly stator core of the self-recording device made from the permalloy permeability magnetic material, and adopted high vacuum or purified hydrogen magnetic processing and air oxidation high-temperature insulation to handle to this material makes that properties of product are stable, precision and highly sensitive.
Description
The present invention relates to the magnetic of the magnetic circuit assembly-stator core in the electronic instrument I series self-recording device and the technological method for processing of insulating property.
The key component of electronic instrument I series self-recording device is a stator core, the precision that its material selection and preparation technology directly influence self-recording device.Desirable self-recording device, the variation of the variation of its input current and registering instrument recording bar deflection angle are linear relationships.Improve the precision of registering instrument, need to carry out from several aspects, the one, select better magnetic material; The 2nd, the magnetic processing technology of improvement magnetic material; The 3rd, solve the insulating property between the magnetic sheet better.Up to now, the selected material of registering instrument stator core is Ni78.
1, its high-temperature magnetic disposal route is: (such as GBnl61-82)
1), the condition of magnetic processing is:
After the magnetic sheet oven dry of cleaning, sprinkle Al
2O
3Powder is tied up, and is placed in the Muffle pot, jar is placed on carries out high-temperature magnetic processing (can select model for use is the KO-11 electric furnace) in the muffle furnace.
2), the technology of magnetic processing is:
(1), in three hours, furnace temperature is raised to 950 ℃ linearly from room temperature;
(2), between 950 ℃-1150 ℃, kept 2-3 hour;
(3), be cooled to 500 ℃ with 100 ℃/hour speed;
(4), kept 1 hour at 500 ℃;
(5), with 10 ℃-30 ℃/hour speed, be cooled to 300 ℃;
(6), being cooled to 200 ℃ in stove comes out of the stove.
2, the insulation processing of magnetic sheet, generally carry out according to following way:
1), on magnetic sheet, sprays paint;
2), surface oxidation treatment:
(1), turn blue in the surface;
(2), the potassium permanganate volatilization gas is to the oxidation processes on magnetic sheet surface.
(3), at magnetic sheet surface spray magnesium hydroxide, after hydrolysis, generate the magnesium oxide insulation course.
The self-recording device of under last condition and last technology, producing, the performance of its test is as follows:
One, in test specification (measurement point is: 0 °, 7.5 °, 15 °, 22.5 °, 30 °)
The relation of its input current and deflection angle and linear relationship deviate are ± 0.2mA-=0.3mA.
Two, several most important parameter testing results are as follows:
New technical indicator is:
Modern production needs further to reduce deviation, and such as reaching ± 0.16mA, existing processes can not meet the demands.
Purpose of the present invention is exactly will be from new selection magnetic material; Improve its magnetic processing technology; Improve its surface insulation treatment process, improve machine performance and degree of stability.
Through a large amount of tests and test, the solution of success of the present invention an above difficult problem.The present invention realizes like this.
One, selecting thickness is the permalloy permeability magnetic material of 0.1 ± 0.01mm, and its trade mark is IJ87.
Two, formulate new high temperature method of magnetically processing, that is:
1, the condition of magnetic treatment is: the magnetic sheet oven dry that will clean sprinkles Al
2O
3Powder is tied up and is placed in the Muffle pot, puts jar in the muffle furnace (or model is in the cabinet-type electric furnace of X-15), vacuumizes that (vacuum is 10
-6Torr), or logical hydrogen (hydrogen needs to purify earlier, and its purity must be 99.99%) heat.
2, magnetic processing technology of the present invention is:
1), in three hours, furnace temperature is risen to 1050 ℃ linearly from room temperature;
2), kept 2 hours at 1050 ℃;
3), be cooled to 500 ℃ with 200 ℃ hours speed;
4), kept one hour down at 500 ℃;
5), in stove, be cooled to 470 ℃ automatically, horse not irritated in stove pulled out with stove;
6), be chilled to 200 ℃ certainly;
7), temperature after 200 ℃, go out jar cooling.
Three, the present invention proposes the high-temperature oxydation insulating treatment process, in order to make magnetic circuit assembly stator core eddy current loss little, the inductance value vary stable after magnetic processing, insulation between plates intensity height, the present invention has adopted the air oxidation disposal route.
1, the condition of high temperature oxidation process of the present invention is: with the magnetic core punching after the magnetic processing, put into cabinet-type electric furnace (model is X-15) and heat, utilize empty oxygen to carry out oxidation.
2, high temperature oxidation process technology of the present invention is:
1), in one hour, furnace temperature is risen to 500 ℃-540 ℃ linearly from room temperature;
2), kept 45-60 minute, make it abundant oxidation at 500 ℃-540 ℃;
3), be cooled to 300 ℃ voluntarily with stove;
4), come out of the stove after reaching 300 ℃.
Through above PROCESS FOR TREATMENT, obtain the good insulation layer, it is golden yellow that material surface is, and every index of its insulating property is, resistance infinity (not stressing), inductance value changes little.The magnetic circuit assembly stator core stable performance of manufacturing of the present invention, precision and highly sensitive meet the control requirement of instrument industry I series self-recording device fully.The measurement technology data meet the magnetic core technical requirement, see the following form:
The present invention has the following drawings:
Fig. 1 is a GBnl61-82 magnetic processing standard synoptic diagram;
Fig. 2 selects the magnetic processing scope synoptic diagram of permeability magnetic material IJ87 material for use for the present invention;
Fig. 3 is the processing specification synoptic diagram of the IJ87 material selected for use of the present invention.
Claims (2)
1, the method for a kind of I series self-recording device stator core material at high temperature magnetic treatment, be that the manufactured core material that cleaned is put into Muffle pot, jar is put into muffle furnace carry out the high temperature magnetic treatment, the feature on the core material disposal route of the present invention is: selecting thickness for use is the material of the IJ87 permalloy permeability magnetic material of 0.1 ± 0.01mm as I series self-recording device stator core of the present invention; The magnetic material that processes is put into horse not irritate, jar is put into muffle furnace, vacuumize in muffle furnace, vacuum tightness is 10
-5Torr, or logical pure hydrogen carries out high-temperature heat treatment (purity of its hydrogen is 99.99%);
Its high temperature magnetic treatment technology is:
1) in 3 hours, makes furnace temperature by oneself warm working and be increased to 1050 ℃
2) kept 2 hours at 1050 ℃.
3) make it to be cooled to 500 ℃ with 200 ℃/hour speed.
4) kept 1 hour down at 500 ℃.
When 5) in stove, being cooled to 470 ℃ voluntarily, Muffle pot is pulled out in stove with stove.
Go out a jar cooling when 6) being chilled to 200 ℃.
2, a kind of I series self-recording device stator magnet material, the method that the surface high-temperature insulation is handled, the technology characteristics that the present invention makes its surface form insulation course is: the IJ87 permalloy magnetic material magnetic chip that will carry out the high temperature magnetic treatment, putting into the high-temperature insulation that cabinet-type electric furnace carries out air oxidation handles
The technology that its high-temperature insulation is handled is:
1) in one hour, furnace temperature is increased to 500 ℃～540 ℃ linearly from room temperature;
2) keep 45 '～60 at 500 ℃～540 ℃ ', make it abundant oxidation;
3) be cooled to 300 ℃ voluntarily with stove;
4) after 300 ℃, the cooling of coming out of the stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93106840 CN1096367A (en) | 1993-06-10 | 1993-06-10 | Magnetism and insulation property treating method for stator magenetic core of automatic recording instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93106840 CN1096367A (en) | 1993-06-10 | 1993-06-10 | Magnetism and insulation property treating method for stator magenetic core of automatic recording instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1096367A true CN1096367A (en) | 1994-12-14 |
Family
ID=4986438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93106840 Pending CN1096367A (en) | 1993-06-10 | 1993-06-10 | Magnetism and insulation property treating method for stator magenetic core of automatic recording instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1096367A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575688B (en) * | 2008-05-07 | 2010-08-25 | 焦作市同兴计时化工有限公司 | Permalloy vacuum heat treatment process |
| CN107610923A (en) * | 2017-08-18 | 2018-01-19 | 上海蓝沛新材料科技股份有限公司 | A kind of wireless charging magnetic conduction sheet preparation technology |
-
1993
- 1993-06-10 CN CN 93106840 patent/CN1096367A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575688B (en) * | 2008-05-07 | 2010-08-25 | 焦作市同兴计时化工有限公司 | Permalloy vacuum heat treatment process |
| CN107610923A (en) * | 2017-08-18 | 2018-01-19 | 上海蓝沛新材料科技股份有限公司 | A kind of wireless charging magnetic conduction sheet preparation technology |
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