CN111965573B - Tool for manufacturing samples with different-angle magnetic properties of environment-friendly coated oriented silicon steel - Google Patents
Tool for manufacturing samples with different-angle magnetic properties of environment-friendly coated oriented silicon steel Download PDFInfo
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- CN111965573B CN111965573B CN202010874669.9A CN202010874669A CN111965573B CN 111965573 B CN111965573 B CN 111965573B CN 202010874669 A CN202010874669 A CN 202010874669A CN 111965573 B CN111965573 B CN 111965573B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/1215—Measuring magnetisation; Particular magnetometers therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
Abstract
The invention discloses a tool for manufacturing samples with different angle magnetic properties of environment-friendly coating oriented silicon steel, which comprises a plurality of isosceles triangles arranged side by side, wherein the vertex angle of each isosceles triangle is 5 degrees, and the base angle of each isosceles triangle is 87.5 degrees. The invention also provides a method for preparing the samples with different angle magnetic properties of the environment-friendly coated oriented silicon steel by adopting the tool for preparing the samples with different angle magnetic properties of the environment-friendly coated oriented silicon steel. The invention also provides a method for measuring the magnetic performance of the environment-friendly coating oriented silicon steel, which is a monolithic magnetic performance measurement method. The tool can be used for preparing a sample meeting the requirement of the magnetic performance test of the environment-friendly coating oriented silicon steel, and the magnetic performance test can be carried out by adopting the measuring method under the condition of not damaging the magnetic performance of the environment-friendly coating oriented silicon steel.
Description
Technical Field
The invention belongs to the field of detection, and particularly relates to a tool for manufacturing samples with different-angle magnetic properties of environment-friendly coated oriented silicon steel, a manufacturing method of the samples with different-angle magnetic properties of the environment-friendly coated oriented silicon steel and a measuring method of the magnetic properties of the environment-friendly coated oriented silicon steel.
Background
Energy is indispensable for existence and development of human society, the reduction of energy resources forces people to seek new energy, and the development of wind power is a necessary choice for implementing a sustainable energy strategy in China. The stator core of the wind driven generator is generally made of non-oriented silicon steel. In order to pursue the maximization of motor efficiency, realize low loss, no-load counter potential is high, raise the generating efficiency, replace the non-oriented silicon steel with the oriented silicon steel of environmental protection coating gradually and apply to the wind-powered electricity generation motor.
Because silicon steel sheets are used for manufacturing the stator core of the generator, the magnetic performance in all directions is required to be good. At present, the magnetic performance test of the non-oriented silicon steel is to prepare 30 x 300mm test samples and use a circle method to measure the magnetic performance of different angles. According to the standard 'the magnetic performance of the oriented silicon steel measured by a coil method needs stress relief annealing at 800 ℃ for 2 hours', when the environment-friendly coated oriented silicon steel is used as an iron core, because the surface of the environment-friendly coated oriented silicon steel is coated with a water-soluble environment-friendly coating which cannot be subjected to high-temperature annealing, and the thickness of the coating ranges from 3 to 10 mu m and is thicker than that of a conventional magnesium silicate bottom layer and phosphate inorganic insulating coating (the thickness ranges from 1 to 3 mu m), the magnetic performance can be deteriorated once the coating is damaged by high-temperature annealing. Therefore, the traditional square ring method cannot meet the requirement of magnetic performance test of the environment-friendly coated oriented silicon steel.
Disclosure of Invention
The invention aims to provide a tool for manufacturing samples with different angle magnetic properties of environment-friendly coated oriented silicon steel, a manufacturing method of the samples with different angle magnetic properties of the environment-friendly coated oriented silicon steel and a measuring method of the magnetic properties of the environment-friendly coated oriented silicon steel, wherein the tool can be used for preparing the samples meeting the requirement of the magnetic property test of the environment-friendly coated oriented silicon steel, and the measuring method can be used for carrying out the magnetic property test under the condition of not damaging the magnetic property of the environment-friendly coated oriented silicon steel; the manufacturing method of the samples with different angle magnetic properties of the environment-friendly coated oriented silicon steel can quickly prepare the samples with different angle magnetic properties of the environment-friendly coated oriented silicon steel.
The technical scheme adopted by the invention is as follows:
the utility model provides a different angle magnetic properties instrument (appurtenance) for sample of preparation environmental protection coating oriented silicon steel, it includes a plurality of isosceles triangle that sets up side by side, the apex angle of isosceles triangle is 5, and the base angle is 87.5.
According to the scheme, the waist length of the isosceles triangle is 350mm, and the plate thickness is 0.8mm.
According to the scheme, the isosceles triangles are combined in a mode that the vertex angles of the triangles are used as aligning fixed pivot points, the waists of the adjacent triangles are closely aligned without gaps, and the protractors with the vertex angles of 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees and 45 degrees are combined according to angle requirements.
The invention also provides a method for preparing different-angle magnetic performance samples of the environment-friendly coated oriented silicon steel by adopting the tool for preparing the different-angle magnetic performance samples of the environment-friendly coated oriented silicon steel, which comprises the following steps:
1) Preparing the environment-friendly coating oriented silicon steel into an initial sample with the plate width of 600-800 mm, and marking an arrow along the rolling direction;
2) Extracting corresponding isosceles triangles according to the required magnetization directions of 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees and 45 degrees to form a protractor in a combined mode; one edge of the protractor is closely fixed at a right-angle stop block at the edge of the plate shearing machine, one edge of the primary sample along the rolling direction is close to the other edge of the protractor, the plate shearing machine is started, and the primary sample is sheared, wherein the sheared edge is a sample a edge;
3) Closely fixing the edge a of the sample at a baffle at the vertical edge of the longitudinal direction of the plate shearing machine, and shearing the primary sample again, wherein the sheared edge is the edge b of the sample;
4) Tightly fixing the edge a of the sample at a transverse 500mm scale baffle of a plate shearing machine, and shearing the initial sample;
5) And (4) tightly fixing the side b of the sample at a transverse 500mm scale baffle of the plate shearing machine, shearing the initial sample, and manufacturing the initial sample into a sample with the specification of 500mm to 500mm.
The invention also provides a method for measuring the magnetic property of the environment-friendly coating oriented silicon steel, which is a monolithic magnetic property measurement method and specifically comprises the following steps:
weighing the prepared 500mm-500mm single samples at different angles;
respectively inserting the sample into a single magnetic yoke along the angle direction, and measuring the iron core loss value when the magnetic polarization strength is 1.7T and the magnetic polarization strength value when the magnetic field strength is 800H/m under the condition that the frequency is 50 Hz;
and summarizing the test result of each angle to draw a magnetic performance curve, thereby obtaining the magnetic performance of the environment-friendly coating oriented silicon steel.
The invention has the beneficial effects that:
the auxiliary tool has simple structure and is convenient to manufacture and use;
the environment-friendly coating oriented silicon steel sample is conveniently and quickly manufactured by a special auxiliary tool;
the method is convenient for manufacturing environment-friendly coated oriented silicon steel samples with different angles;
by adopting the auxiliary tool, a sample meeting the requirement of the magnetic performance test of the environment-friendly coated oriented silicon steel is rapidly manufactured;
the environment-friendly coating oriented silicon steel sample is adopted for measurement, so that the magnetism of the environment-friendly coating oriented silicon steel can not be damaged, and the accuracy of the test is ensured;
the coating is not damaged by high-temperature stress relief annealing, so that the magnetic performance result is not influenced by measuring by using a 500mm multiplied by 500mm single chip method;
the magnetic performance characteristics of the environment-friendly coated oriented silicon steel samples at different angles can be conveniently measured, namely the magnetic performance characteristics at nine angles of 0 degree, 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees and 90 degrees with the rolling direction can be measured, and the angle precision is controlled within +/-0.5 degrees;
establishes different-angle magnetic property sample preparation and measurement methods of the environment-friendly coated oriented silicon steel for wind power.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic representation of different angle magnetic property samples for making environmentally friendly coated oriented silicon steel.
FIG. 2 is a schematic structural view of a tool for manufacturing samples with different angle magnetic properties of the environmentally-friendly coated oriented silicon steel according to the present invention.
FIG. 3 shows the p (W/KG) values at different angles after 35Q155-Y annealing.
FIG. 4 is a graph of the J (T) values at various angles after 35Q155-Y annealing.
1. A plate shearing machine 2, a right-angle stop 3, tools (stop rulers) for manufacturing samples with different magnetic properties of the environment-friendly coated oriented silicon steel, and 4, an initial sample.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 2, the tool (auxiliary tool) for manufacturing the magnetic performance samples with different angles of the environment-friendly coated oriented silicon steel comprises a plurality of isosceles triangles which are arranged side by side, wherein the top angle of each isosceles triangle is 5 degrees, the bottom angle of each isosceles triangle is 87.5 degrees, the waist length of each isosceles triangle is 350mm, and the plate thickness of each isosceles triangle is 0.8mm. The isosceles triangles are combined in a mode that the vertex angles of the triangles are used as aligning fixing supporting points, the waists of the adjacent triangles are close to each other without gaps, and the protractors with the vertex angles of 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees and 45 degrees are combined according to angle requirements.
Referring to fig. 1, a method for manufacturing samples with different angle magnetic properties of environment-friendly coated oriented silicon steel by using the tool for manufacturing samples with different angle magnetic properties of environment-friendly coated oriented silicon steel comprises the following steps:
1) Preparing the environment-friendly coating oriented silicon steel into a primary sample 4 with the plate width of 600-800 mm, and marking an arrow along the rolling direction;
2) Corresponding isosceles triangles are extracted according to the required magnetization directions of 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees and 45 degrees to be combined to form a protractor (gear ruler 3); one side of the protractor is closely fixed at a right-angle stop block 2 at the edge of the plate shearing machine 1, one side of the primary sample 4 along the rolling direction is aligned with the other side of the protractor and is closed, the plate shearing machine 1 is started, and the primary sample 4 is sheared, wherein the sheared side is a side a of the sample;
3) Tightly fixing the edge a of the sample at a baffle at the vertical edge of the plate shearing machine 1 in the longitudinal direction, and shearing the primary sample again, wherein the sheared edge is the edge b of the sample;
4) Tightly fixing the edge a of the sample at a transverse 500mm scale baffle of a plate shearing machine, and shearing a primary sample;
5) And (4) tightly fixing the side b of the sample at a transverse 500mm scale baffle of the plate shearing machine, shearing the initial sample, and manufacturing the initial sample into a sample with the specification of 500mm to 500mm.
A method for measuring the magnetic property of environment-friendly coating oriented silicon steel is a single-chip method magnetic property measurement method, and specifically comprises the following steps:
weighing the prepared 500mm-500mm single samples at different angles;
respectively inserting the sample into a single-piece magnetic yoke along the angle direction, and measuring the iron core loss value when the magnetic polarization strength is 1.7T and the magnetic polarization strength value when the magnetic field strength is 800H/m under the condition that the frequency is 50 Hz;
and summarizing the test result of each angle to draw a magnetic performance curve, thereby obtaining the magnetic performance of the environment-friendly coating oriented silicon steel.
In a specific example, the silicon steel sheet sample tested in the embodiment is an oriented silicon steel sheet with a water-soluble environment-friendly coating, and the grade of the grade is 35Q155-Y.
The size of the single sample to be measured is 500mm multiplied by 500mm, and single pieces with different angles with the rolling direction need to be prepared. Weighing the prepared single samples with different angles of 500mm × 500mm specification, inserting the samples into a single magnet yoke along the angle direction, measuring the iron core loss value when the magnetic polarization strength is 1.7T and the magnetic polarization strength value when the magnetic field strength is 800H/m under the condition of 50 Hz, and summarizing the iron loss and the magnetic polarization strength of the single test results of each angle of the silicon steel sheet to draw a magnetic performance curve, as shown in figures 3 and 4.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (1)
1. A method for preparing different-angle magnetic performance samples of environment-friendly coated oriented silicon steel by adopting tools for manufacturing different-angle magnetic performance samples of the environment-friendly coated oriented silicon steel is characterized by comprising the following steps of:
the tool for manufacturing the magnetic performance samples with different angles of the environment-friendly coated oriented silicon steel comprises a plurality of isosceles triangles which are arranged side by side, wherein the vertex angle of each isosceles triangle is 5 degrees, and the base angle of each isosceles triangle is 87.5 degrees; the waist length of the isosceles triangle is 350mm, and the plate thickness is 0.8mm; the isosceles triangle combination mode is that the triangle vertex angle is used as an alignment fixing pivot, the waists of adjacent triangles are close to each other and aligned, and no gap is left;
the method comprises the following steps:
1) Preparing the environment-friendly coating oriented silicon steel into an initial sample with the plate width of 600-800 mm, and marking an arrow along the rolling direction;
2) Extracting corresponding isosceles triangles according to the required magnetization direction of 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees and 45 degrees to combine to manufacture a protractor; one edge of the protractor is closely fixed at a right-angle stop block at the edge of the plate shearing machine, one edge of the primary sample along the rolling direction is close to the other edge of the protractor, the plate shearing machine is started, and the primary sample is sheared, wherein the sheared edge is a sample a edge;
3) Closely fixing the edge a of the sample at a baffle at the vertical edge of the longitudinal direction of the plate shearing machine, and shearing the primary sample again, wherein the sheared edge is the edge b of the sample;
4) Tightly fixing the edge a of the sample at a transverse 500mm scale baffle of a plate shearing machine, and shearing a primary sample;
5) And (3) tightly fixing the side b of the sample at a transverse 500mm scale baffle of a plate shearing machine, shearing the initial sample, and manufacturing the initial sample into a sample with the specification of 500mm x 500mm.
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| CN202010874669.9A CN111965573B (en) | 2020-08-27 | 2020-08-27 | Tool for manufacturing samples with different-angle magnetic properties of environment-friendly coated oriented silicon steel |
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| CN111965573B true CN111965573B (en) | 2022-10-25 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993018707A1 (en) * | 1992-03-18 | 1993-09-30 | Sumitomo Special Metals Company Limited | Magnetic field generator for mri |
| CN103116149A (en) * | 2013-01-25 | 2013-05-22 | 北京无线电计量测试研究所 | Crank and rocker combined type testing jig capable of adjusting elevation angle of magnetic field probe |
| CN110531288A (en) * | 2019-09-26 | 2019-12-03 | 武汉钢铁有限公司 | A kind of epstein frame magnetic property detection device and method |
| CN210119710U (en) * | 2019-05-28 | 2020-02-28 | 中国煤炭地质总局物测队 | Mine transient electromagnetic detection angle controller |
-
2020
- 2020-08-27 CN CN202010874669.9A patent/CN111965573B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993018707A1 (en) * | 1992-03-18 | 1993-09-30 | Sumitomo Special Metals Company Limited | Magnetic field generator for mri |
| CN103116149A (en) * | 2013-01-25 | 2013-05-22 | 北京无线电计量测试研究所 | Crank and rocker combined type testing jig capable of adjusting elevation angle of magnetic field probe |
| CN210119710U (en) * | 2019-05-28 | 2020-02-28 | 中国煤炭地质总局物测队 | Mine transient electromagnetic detection angle controller |
| CN110531288A (en) * | 2019-09-26 | 2019-12-03 | 武汉钢铁有限公司 | A kind of epstein frame magnetic property detection device and method |
Non-Patent Citations (2)
| Title |
|---|
| "电工钢用单片测量方法测量偏差分析";向前等;《钢铁研究》;20170831;第43页 * |
| "电机用取向电工钢不同角度磁性能的探讨";张俊鹏等;《第十三届中国电工钢学术年会论文集》;20150731;第267页 * |
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