IEC 60404-9:2018
Collections
International IEC standards
Publication date
November 2018
Number of pages
33 p.
Reference
IEC 60404-9:2018
IEC 60404-9:2018
November 2018
International standard
Current
Magnetic materials - Part 9: Methods of determination of the geometrical characteristics of electrical steel strip and sheet
IEC 60404-9:2018 specifies the measurement and test methods for the determination of the following geometrical characteristics of electrical steel strip and sheet:? edge wave (wave factor);? residual curvature;? edge camber;? deviation from the shearing line (internal stress);? burr height.This document applies to electrical steel strip and sheet intended for the construction of magnetic circuits and corresponding to Classes B2, C21, C22 and C23 of IEC 60404-1.This edition includes the following significant technical changes with respect to the previous edition:a. revision of terms and definitions;b. specification of the length of test specimens for the determinations of edge wave (wave factor) and edge camber;c. addition of the horizontal method for the determination of residual curvature, and a note that informs about a safety concern of the vertical method;d. clarification that the burr height was characterized by the maximum value;e. addition of the measuring procedure using a hand-held micrometer to determine the burr height.
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Sumary
Magnetic materials - Part 9: Methods of determination of the geometrical characteristics of electrical steel strip and sheet
IEC 60404-9:2018 specifies the measurement and test methods for the determination of the following geometrical characteristics of electrical steel strip and sheet:
? edge wave (wave factor);
? residual curvature;
? edge camber;
? deviation from the shearing line (internal stress);
? burr height.
This document applies to electrical steel strip and sheet intended for the construction of magnetic circuits and corresponding to Classes B2, C21, C22 and C23 of IEC 60404-1.
This edition includes the following significant technical changes with respect to the previous edition:
a. revision of terms and definitions;
b. specification of the length of test specimens for the determinations of edge wave (wave factor) and edge camber;
c. addition of the horizontal method for the determination of residual curvature, and a note that informs about a safety concern of the vertical method;
d. clarification that the burr height was characterized by the maximum value;
e. addition of the measuring procedure using a hand-held micrometer to determine the burr height.
IEC 60404-9:2018 specifies the measurement and test methods for the determination of the following geometrical characteristics of electrical steel strip and sheet:
? edge wave (wave factor);
? residual curvature;
? edge camber;
? deviation from the shearing line (internal stress);
? burr height.
This document applies to electrical steel strip and sheet intended for the construction of magnetic circuits and corresponding to Classes B2, C21, C22 and C23 of IEC 60404-1.
This edition includes the following significant technical changes with respect to the previous edition:
a. revision of terms and definitions;
b. specification of the length of test specimens for the determinations of edge wave (wave factor) and edge camber;
c. addition of the horizontal method for the determination of residual curvature, and a note that informs about a safety concern of the vertical method;
d. clarification that the burr height was characterized by the maximum value;
e. addition of the measuring procedure using a hand-held micrometer to determine the burr height.
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Replaced standards
(1)
IEC 60404-9:1987
September 1987
International standard
Cancelled
Magnetic materials. Part 9: Methods of determination of the geometrical characteristics of magnetic steel sheet and strip
This standard defines the test methods used for the determination of the following geometrical characteristics of magnetic steel sheet and strip: flatness, residual curvature, edge camber, deviation from the shearing line, burr height of cut edges.
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