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brush contact materials

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Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001097
EISBN: 978-1-62708-162-7
... conductivity, mechanical properties, chemical properties, fabrication properties, and thermal properties. The article presents a brief note on brush contact materials and their interdependence factors for sliding contacts. It also describes the type of commercial contact materials for electrical contacts...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003157
EISBN: 978-1-62708-199-3
.... The article also focuses on brush contact materials and their interdependence factors for sliding contacts. In addition, the article discusses the properties, manufacturing methods, and applications of electrical contact materials, including wrought materials such as copper metals, silver metals, gold metals...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003135
EISBN: 978-1-62708-199-3
... and nickel silver P/M parts, copper-nickel P/M parts, copper-lead P/M parts, copper-base P/M friction materials, copper-base P/M electrical contact materials, copper-base P/M brush materials, infiltrated parts, and oxide-dispersion-strengthened copper P/M materials. copper alloy powders copper powders...
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000631
EISBN: 978-1-62708-181-8
... Abstract This article is an atlas of fractographs that helps in understanding the causes and mechanisms of fracture of electronic materials, including L-shaped electronic flat pack, transistor base lead, ohmic contact window, and brush/slip ring assembly. The fractographs illustrate the atomic...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006105
EISBN: 978-1-62708-175-7
... Abstract Development of the properties of copper powder metallurgy parts is affected by pressing and sintering processes used in the production of components, such as contacts, carbon brushes, and friction materials. This article briefly describes the powder properties of copper and discusses...
Book Chapter

By Niels Bay
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005581
EISBN: 978-1-62708-174-0
... microscopy (SEM) reveal the bonding mechanisms ( Ref 4 , Ref 5 , 6 ). The scratch brushing produces a hard, brittle surface layer that will crack when subjected to expansion ( Fig. 3 ). At larger surface expansion ( Fig. 4 ), virgin material is exposed, which extrudes through the cracks of the surface...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001269
EISBN: 978-1-62708-170-2
.... Although these brushes appear to uniformly alter the strip surface, microstructural examination of a mechanically cleaned surface shows that a large portion of it never contacts the abrasive materials. Ultrasonic Cleaning Methods Ultrasonic cleaning methods loosen surface material by using...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006428
EISBN: 978-1-62708-192-4
... of the material to relative motion under such contact conditions would vary depending on the operating conditions. From the perspective of understanding fretting behavior of components at a phenomenological level, Vingsbo et al. ( Ref 11 ) developed a fretting damage map which serves as an excellent framework...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005677
EISBN: 978-1-62708-198-6
... by profilometry and laser reflection techniques, which both indicate that amalgam wears about 10 times more rapidly than gold alloys under the same conditions of simulated brushing with normal dentifrices ( Ref 84 ). Clinical Studies The physiologic wear rates of amalgam are 6 to 15 μm/year in contact-free...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001261
EISBN: 978-1-62708-170-2
... Abstract Selective plating, also known as brush plating, differs from traditional tank or bath plating in that the workpiece is not immersed in a plating solution (electrolyte). Instead, the electrolyte is brought to the part and applied by a handheld anode or stylus, which incorporates...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001378
EISBN: 978-1-62708-173-3
... been removed and the contact surfaces have been mechanically cleaned (for example, by scratch-brushing with a rotating steel brush). Cleaning should be performed immediately before welding. Depending on the material, sheet thicknesses between 0.1 to 15 mm (0.004 to 19 32 in.) can be welded...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001276
EISBN: 978-1-62708-170-2
... protection, such as the ways for a lathe bed. When these compounds are applied cold, their consistency requires the use of brushing or wiping. When brushing is used, the bristles of the brush should be stiff enough to permit brush-out of the material, but not so stiff as to leave deep brush marks...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003428
EISBN: 978-1-62708-195-5
... barrier would be a primer coat of paint or other organic coating applied to the part after machining and before assembly. This prevents the two materials from coming into contact. The primer or organic coating could also be in the retardation category, since anticorrosion compounds could be added...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006517
EISBN: 978-1-62708-207-5
.... This is accomplished by frequently bringing a pumice stone or soft brick in contact with the rotating brush. A common wire brushing setup consists of a 250-mm (10-in.) diameter wheel having a surface speed of about 8.0 m/sec (1575 ft/min) and wires 0.4 mm (0.015 in.) in diameter. Undue pressure on a rotating wire...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001314
EISBN: 978-1-62708-170-2
... Reduced-oxide surfaces occur when hot-worked products, such as forged and hot-rolled material, are heated after hot working in a reducing, sulfur-free atmosphere and are cooled out of contact with air or quenched in an alcohol solution. On such products, pickling produces a clean surface for further...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001309
EISBN: 978-1-62708-170-2
... previous polishing. Buffing is not required when a brushed or satin finish is desired as the final finish. Because copper-base materials are softer than steel, fewer stages of successively finer polishing are required to achieve a uniformly fine surface finish. For many parts, especially those having...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006025
EISBN: 978-1-62708-172-6
... Abstract The process of transferring coating materials from the container to the surface to be coated can be accomplished in a number of ways. This article describes seven methods of coating application: brushes, rollers, and daubers; conventional air spray; high-volume low-pressure spray...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002494
EISBN: 978-1-62708-194-8
... evaluated in terms of life-cycle costs and their impact on the environment, and even ecology in general. Several scenarios have been proposed for the life cycle of materials, which of necessity incorporates manufacturing processes. In the article “Introduction to Manufacturing and Design” in this Volume...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005554
EISBN: 978-1-62708-174-0
... of the stud, and the adjoining work surface upon contact with the work surface. The weld is completed using the gun forces (i.e., spring pressure or air pressure) to plunge the stud into the molten materials, forming a strong welded bond between the stud and the work surface. The weld cycle time ( Fig. 1...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001361
EISBN: 978-1-62708-173-3
... melting the stud face area and the work surface that it immediately contacts. The stud is forced into the molten material, forming a strong homogeneous weld. This process has a weld cycle time of approximately 6 ms, much like the gap process. Fig. 3 Initial-contact CD stud welding. See text...