CN207366377U - A kind of measuring device of manganese-zinc ferrite feed powder magnetization degree - Google Patents
A kind of measuring device of manganese-zinc ferrite feed powder magnetization degree Download PDFInfo
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- CN207366377U CN207366377U CN201721446025.XU CN201721446025U CN207366377U CN 207366377 U CN207366377 U CN 207366377U CN 201721446025 U CN201721446025 U CN 201721446025U CN 207366377 U CN207366377 U CN 207366377U
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Abstract
The utility model discloses a kind of measuring device of manganese-zinc ferrite feed powder magnetization degree, including test desk, the test desk is equipped with Weighing mechanism, open-topped sample cup is placed with the Weighing mechanism, the inside of the sample cup is placed with feed powder to be measured, and further include pan paper, cover plate and ndfeb magnet, the pan paper is covered in the opening of the sample cup, the cover plate cover is placed on the surrounding of the test desk, the ndfeb magnet is fixed on the lower surface middle position of the cover plate, and the position of the ndfeb magnet is corresponding with the aperture position of the sample cup, wherein, a gap is equipped between the opening of the bottom surface of the ndfeb magnet and the sample cup.The utility model is not only simple in structure, and measurement is convenient, and reduces influence of the different factors to test result, improves the accuracy of test.
Description
Technical field
It the utility model is related to magnetization degree measuring device technical field, more particularly to a kind of manganese-zinc ferrite feed powder magnetization degree
Measuring device.
Background technology
It is bad due to controlling feed powder magnetization degree in manganese-zinc ferrite production process, it can frequently result in follow-up magnetic core production
The generation of the problems such as cracking, adhesion occurs for product, while the application of automatic blank arranging technology in recent years, too low magnetization degree are led again
The row's of cause base system cannot normally hold magnetic core green compact, thus magnetization degree is to have to emphasis in manganese-zinc ferrite feed powder preparation process
The technological parameter of control.
At present, the principle that most magnetization degree test methods is based on is in the production of manganese-zinc ferrite feed powder, is passed through
This process procedure of pre-burning, solid phase reaction, this kind of magnetisable material of generation ferrite, so as to have will occur between raw material
Inductance.Thus using having the skeleton, LCR secohmmeters and electronic scale of coil, by measuring the initial inductance value of skeleton, in skeleton
Load the weight of inductance value and tested feed powder after feed powder, then calculate magnetization degree by formula.
Magnetization degree is measured by above-mentioned test method, it can be seen that due to being related to Work tool more such as skeleton, secohmmeter, electronics
Scale, the factor for influencing test result just greatly increase.Situations such as such as testing the change of room temperature, the abrasion of skeleton can all cause inductance
Test data it is unstable, and then have impact on the result of magnetization degree.
Utility model content
The utility model is mainly the technical problem solved in the presence of the prior art, thus provide it is a kind of efficiently, it is easy,
Test the measuring device of accurate manganese-zinc ferrite feed powder magnetization degree.
The above-mentioned technical problem of the utility model is mainly what is be addressed by following technical proposals:
The measuring device of manganese-zinc ferrite feed powder magnetization degree provided by the utility model, including test desk, the test desk
Weighing mechanism is equipped with, open-topped sample cup is placed with the Weighing mechanism, the inside of the sample cup is placed with material to be measured
Powder, and pan paper, cover plate and ndfeb magnet are further included, the pan paper is covered in the opening of the sample cup, the cover
Plate cover is placed on the surrounding of the test desk, and the ndfeb magnet is fixed on the lower surface middle position of the cover plate, and institute
It is corresponding with the aperture position of the sample cup to state the position of ndfeb magnet, wherein, the bottom surface of the ndfeb magnet with it is described
A gap is equipped between the opening of sample cup.
Further, the cross-sectional area of the ndfeb magnet is adapted with the cross-sectional area size of the sample cup.
Further, the gap between the opening of the bottom surface of the ndfeb magnet and the sample cup is 3-5cm.
Further, the sample cup is made using nonmagnetic substance, and the cover plate is made using organic glass.
Further, the magnetization degree of the feed powder to be measured meets following formula:
In formula (a), w1 is the weight of feed powder in sample cup under non-magnetic field, and w2 is the weight of feed powder in sample cup under magnetic field.
The beneficial effects of the utility model are:By being placed on feed powder to be measured in sample cup on Weighing mechanism, then
Pan paper is covered in the opening of sample cup, the ndfeb magnet installed by the use of the lower surface of cover plate is used as the magnetic field of feed powder to be measured
Source, produces suction to tested feed powder, the weight of tested feed powder is changed, so that the magnetization degree of tested feed powder is measured,
It is not only simple in structure, and measurement is convenient, and reduces influence of the different factors to test result, improves the accurate of test
Degree.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram of the measuring device of the manganese-zinc ferrite feed powder magnetization degree of the utility model.
Embodiment
The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, so as to make the scope of protection of the utility model apparent clear and definite
Define.
As shown in fig.1, the measuring device of the manganese-zinc ferrite feed powder magnetization degree of the utility model, including test desk 1, survey
Amount platform 1 is equipped with Weighing mechanism 2, open-topped sample cup 3 is placed with Weighing mechanism 2, the inside of sample cup 3 is placed with material to be measured
Powder (not shown), and pan paper 4, cover plate 5 and ndfeb magnet 6 are further included, pan paper 4 covers the opening in sample cup 3
On, cover plate 5 covers the surrounding for being placed on test desk 1, and ndfeb magnet 6 is fixed on the lower surface middle position of cover plate 5, and neodymium iron boron
The position of magnet 6 is corresponding with the aperture position of sample cup 3, wherein, set between the bottom surface of ndfeb magnet 6 and the opening of sample cup 3
There is a gap 7.In the utility model, using ndfeb magnet 6 as the magnetic field sources to measuring device, it is with magnetic stability
Feature, is beneficial to the stabilization of test result.Weighing mechanism 2 in the present embodiment can weigh for electronic balance, electronic scale etc. to be set
It is standby.
Then the utility model is covered pan paper 4 by being placed on feed powder to be measured in sample cup 3 on Weighing mechanism 2
In the opening of sample cup 3, the magnetic field sources by the use of the ndfeb magnet 6 that the lower surface of cover plate 5 is installed as feed powder to be measured, to tested
Feed powder produces suction, the weight of tested feed powder is changed, so as to measure the magnetization degree of tested feed powder, its not only structure
Simply, measurement is convenient, and reduces influence of the different factors to test result, improves the accuracy of test.
Specifically, waste of material caused by 6 cross-sectional area of ndfeb magnet is excessive in order to prevent, and ndfeb magnet 6
Absorption is uneven caused by cross-sectional area is too small, and the cross-sectional area of ndfeb magnet 6 is mutually fitted with the cross-sectional area size of sample cup 3
Match somebody with somebody.
In the utility model, the gap between the bottom surface of ndfeb magnet 6 and the opening of sample cup 3 is 3-5cm.In this practicality
In new other embodiment, the gap between the bottom surface of ndfeb magnet 6 and the opening of sample cup 3 can also be arranged to other numbers
Value.
Preferably, in order to avoid measurement of the sample cup 3 on feed powder to be measured influences, sample cup 3 is made using nonmagnetic substance,
Cover plate 5 is made using organic glass, from facilitating operating personnel to be carried out from outside and monitors measuring state.
The operation principle of the utility model is as follows:
1), when measuring manganese-zinc ferrite feed powder magnetization degree, sample cup 3, pan paper 4 is positioned on Weighing mechanism 2 and removed the peel;
2), tested feed powder is fitted into sample cup 3, and places pan paper 4 above sample cup 3 and covers rim of a cup, at this time, is obtained
The weight w1 (g) of feed powder to be measured in sample cup 3, in order to improve precision, can retain 2 significant digits;Ndfeb magnet will be housed
6 cover plate 5 is positioned on test desk 1, makes the opening consistency from top to bottom of ndfeb magnet 6 and sample cup 3, at this time, obtains being in magnetic field
Under feed powder to be measured weight w2 (g), retain 2 significant digits.Finally, material to be measured can be calculated by following formula (a)
The magnetization degree of powder, i.e. magnetization degree:
More than, it is only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited thereto,
Any change or replacement expected without creative work, should be covered within the scope of the utility model.Therefore,
The scope of protection of the utility model should be determined by the scope of protection defined in the claims.
Claims (5)
1. a kind of measuring device of manganese-zinc ferrite feed powder magnetization degree, including test desk, it is characterised in that set on the test desk
There is Weighing mechanism, open-topped sample cup is placed with the Weighing mechanism, the inside of the sample cup is placed with feed powder to be measured, with
And pan paper, cover plate and ndfeb magnet are further included, the pan paper is covered in the opening of the sample cup, and the cover plate cover is put
In the surrounding of the test desk, the ndfeb magnet is fixed on the lower surface middle position of the cover plate, and the neodymium iron
The position of boron magnets is corresponding with the aperture position of the sample cup, wherein, the bottom surface of the ndfeb magnet and the sample cup
A gap is equipped between opening.
2. the measuring device of manganese-zinc ferrite feed powder magnetization degree as claimed in claim 1, it is characterised in that the neodymium-iron-boron
The cross-sectional area of iron is adapted with the cross-sectional area size of the sample cup.
3. the measuring device of manganese-zinc ferrite feed powder magnetization degree as claimed in claim 2, it is characterised in that the neodymium-iron-boron
Gap between the opening of the bottom surface of iron and the sample cup is 3-5cm.
4. the measuring device of manganese-zinc ferrite feed powder magnetization degree as claimed in claim 3, it is characterised in that the sample cup uses
Nonmagnetic substance is made, and cover plate and the sample cup is made using organic glass.
5. the measuring device of manganese-zinc ferrite feed powder magnetization degree as claimed in claim 4, it is characterised in that the feed powder to be measured
Magnetization degree meet following formula:
In formula (a), w1 is the weight of feed powder in sample cup under non-magnetic field, and w2 is the weight of feed powder in sample cup under magnetic field.
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CN201721446025.XU CN207366377U (en) | 2017-11-02 | 2017-11-02 | A kind of measuring device of manganese-zinc ferrite feed powder magnetization degree |
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CN201721446025.XU CN207366377U (en) | 2017-11-02 | 2017-11-02 | A kind of measuring device of manganese-zinc ferrite feed powder magnetization degree |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN115326628A (en) * | 2022-10-12 | 2022-11-11 | 江苏晶杰光电科技有限公司 | Crystal crack detection device and monitoring method thereof |
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2017
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115326628A (en) * | 2022-10-12 | 2022-11-11 | 江苏晶杰光电科技有限公司 | Crystal crack detection device and monitoring method thereof |
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