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ASTM A811-15(2022)
Standard Specification for Soft Magnetic Iron Parts Fabricated by Powder Metallurgy Techniques
Name übersetzen
NORM herausgegeben am 1.10.2022
Informationen über die Norm:
Bezeichnung normen: ASTM A811-15(2022)
Ausgabedatum normen: 1.10.2022
SKU: NS-1088624
Zahl der Seiten: 4
Gewicht ca.: 12 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Kategorie - ähnliche Normen:
Die Annotation des Normtextes ASTM A811-15(2022) :
This specification covers soft magnetic iron parts fabricated by powder metallurgy (P/M) techniques. The material shall conform to the chemical composition requirements. The density of P/M parts is determined by the compressibility of the powder, the compacting pressure, and sintering practice (temperature, time, and atmosphere). The magnetic property evaluation procedures for P/M parts are presented. Three grades, defined by coercive field strength are presented; Grade 3 was developed from interlaboratory study, Grades 2 and 3 are based on a literature review and are believed to reflect the current industry capabilities. A lot shall consist of parts of the same form and dimensions, produced from a single mixed powder batch and from an unchanged process, without discontinuity in production, and submitted for inspection at one time.
Keywords:
coercive field strength, iron, powder metallurgy, powder metallurgy parts,, ICS Number Code 77.160 (Powder metallurgy)
Ergänzende Informationen
| 1. Scope | ||||||||||||
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1.1?This specification covers parts produced from iron powder metallurgy materials. 1.2?This specification deals with powder metallurgy parts in the sintered or annealed condition. Should the sintered parts be subjected to any secondary operation that causes mechanical strain, such as machining or sizing, they should be resintered or annealed. 1.3?The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to customary (cgs-emu and inch-pound) units, which are provided for information only, and are not considered standard. 1.4?This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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| 2. Referenced Documents | ||||||||||||
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