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  • ASTM
    B613-76(2012) Standard Guide for Preparing Specifications for Miniature Brushes of Composite Materials for Sliding Electric Contacts
    Edition: 2012
    $91.10
    Unlimited Users per year

Description of ASTM-B613 2012

ASTM B613 - 76(2012)

Standard Guide for Preparing Specifications for Miniature Brushes of Composite Materials for Sliding Electric Contacts

Active Standard ASTM B613 | Developed by Subcommittee: B02.05

Book of Standards Volume: 02.04




ASTM B613

Abstract

This guide defines the criteria for composition, properties, and other requirements for miniature brushes of composite materials containing a matrix of one or more conducting metallic elements or alloys and one or more lubricating lamellar solids intended for sliding electric contacts. Each constituent of the material should be listed individually by weight percent including tolerances using any analytical technique while the apparent density for the material should be defined using the measurement and weight method. The resistivity; Rockwell superficial hardness, transverse strength, and shear strength; and microstructural properties such as cracks and defects should also be defined and should conform to the required electrical, mechanical, and structural properties of the brush materials.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 This guide defines the criteria for composition, properties, and other requirements for brushes containing a matrix of one or more conducting metallic elements or alloys and one or more lubricating lamellar solids.

1.2 The resulting specification is intended for use where the size (for example, 5 by 3 by 2 mm), shape, or other factors preclude the determination of properties on specimens of the bulk material from which individual brushes are made.

1.3 The requirements recommended herein have been found to be desirable for most brush material composites. Care must be taken in preparing a specification for a pre-existing material that imposition of one or more provisions herein does not alter the material or its performance.

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5 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 become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.


2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

E18 Test Methods for Rockwell Hardness of Metallic Materials

E384 Test Method for Knoop and Vickers Hardness of Materials

ANSI Standard

C64.1 Brushes for Electrical Machines Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.

Keywords

brushes; composite materials; electrical contacts; sliding contacts ; Brushes (miniature); Composites; Electrical contact materials (sliding contacts); Miniature brushes; Sliding electrical contacts


ICS Code

ICS Number Code 29.100.20 (Electrical and electromechanical components)


DOI: 10.1520/B0613-76R12

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ASTM B613

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