Method for rapidly measuring lamination coefficient of iron-based amorphous strip

A technology of lamination coefficient and iron-based amorphous, which is applied in the direction of measuring devices, analytical materials, and material inspection products, can solve the problems of low accuracy, large errors, and small application range of the ring-rolling method, so as to improve the measurement speed , reduce the impact and eliminate the effect of error

Active Publication Date: 2022-03-11
GUANGZHOU METRO DESIGN & RES INST
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a fast measurement method for the lamination coefficient of iron-based amorphous strips to solve the problem of long measurement time and large error of the plane pressure method in view of the shortcomings of the plane pressure method and the coil ring method in the prior art. , low accuracy and small application range of ring rolling method, etc., the measurement method of the present invention has high measurement accuracy and fast speed, and improves the measurement speed of the lamination coefficient of the existing amorphous strip. In order to achieve the above purpose, this The invention is realized through the following technical solutions:

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for rapidly measuring lamination coefficient of iron-based amorphous strip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Use the above measurement method to measure the lamination coefficient of the laminated iron core in a certain transformer. First, select a continuous iron-based amorphous strip with a width of 142mm and a length of 3140mm from the laminated iron core in the transformer. Cut it into 15 single-layer samples with the same length to form a single-layer sample group; the length and width of the prepared single-layer samples have a tolerance range, and they can be divided equally; choose one piece from the 15 pieces The cut iron-based amorphous strip is used as a sample, and the average thickness of the single-layer sample is 25.80 μm by scanning with a double-headed laser coaxial displacement meter; The width value of the sample is 142.24mm, and the length value is 299.80mm; the weight value of the single-layer sample measured by a precision electronic balance is 7.0459g; the material density is 7.20g / cm 3 ; According to the obtained average thickness, width value, length v...

Embodiment 2

[0053] If in the actual measurement scene, in order to further reduce the error and improve the accuracy, the measurement method of Embodiment 1 can be carried out twice or even multiple times, that is, to obtain two or more lamination coefficients, and then average the obtained lamination coefficients value to obtain an average value of the lamination coefficient, thereby further improving the accuracy of this measurement method.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
widthaaaaaaaaaa
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention provides a method for rapidly measuring the lamination coefficient of an iron-based amorphous strip. The method comprises the following steps: preparing a single-layer sample group; randomly extracting one single-layer sample from the single-layer sample group; scanning by using a fixed double-head correlation laser coaxial displacement meter to obtain a thickness average value of a single-layer sample; scanning and measuring by using a CCD size visual system to obtain the width value and the length value of the single-layer sample; measuring the weight value of the single-layer sample by using a precision electronic balance; according to the thickness average value, the width value, the length value and the weight value of the obtained single-layer sample, the lamination coefficient of the iron-based amorphous strip is obtained through calculation; the measurement method is high in accuracy and high in speed, the measurement speed of the lamination coefficient of the existing amorphous strip is increased, the influence of errors on the measurement result is reduced, and therefore the measurement accuracy of the lamination coefficient is improved.

Description

technical field [0001] The invention relates to the technical field of magnetic materials, in particular to a method for rapidly measuring the lamination coefficient of an iron-based amorphous strip. Background technique [0002] Iron-based amorphous alloy or metallic glass is a new technology that came out in the 1970s. It uses quenching technology to form molten steel into thin strips with a thickness of about 25-30 microns at one time. The atoms of the iron-based amorphous strip are in an amorphous structure with random arrangement, which makes it have a narrow B-H loop, high magnetic permeability and low loss; at the same time, the irregular arrangement of amorphous alloy atoms restricts the free passage of electrons As a result, the resistivity is 2 to 3 times higher than that of crystal alloys, which is also conducive to reducing eddy current losses. Because of its high saturation magnetic induction, high magnetic permeability, low loss, and low coercivity, iron-based ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/00G01N2033/0077
Inventor 林珊翟利华刘健美陈吉刚侯峰高杰孙菁张羽彭伟饶美婉周丹刘从胜苏华罗旭王洪杰阮艳妹卢晓智邹晓文吴淑娟
Owner GUANGZHOU METRO DESIGN & RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap