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hard anodic process

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Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001281
EISBN: 978-1-62708-170-2
... thickness desired. (e) Hardness greater than by other processes except hard anodizing Sealing processes for anodic coatings Table 6 Sealing processes for anodic coatings Process Bath Temperature Duration, min Appearance, properties Remarks °C °F Nickel-cobalt 0.5 kg (1.1 lb...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003221
EISBN: 978-1-62708-199-3
... in an electrolytic cell. The three principal types of anodizing processes are (a) chromic, in which the active agent is chromic acid; (b) sulfuric, in which the active agent is sulfuric acid; and (c) hard processes that use sulfuric acid alone or with additives. Other processes, used less frequently...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003221
EISBN: 978-1-62708-199-3
... by hard anodizing processes, most anodic coatings range in thickness from 5 to 18 μm (0.2 to 0.7 mils). The succession of operations typically employed in anodizing is illustrated in Fig. 1 . Fig. 1 Typical process sequence for anodizing operations Surface Preparation A chemically...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006551
EISBN: 978-1-62708-210-5
... nozzles, insulation plates, blast shields, and so on. It is not recommended where rubbing speeds are high or bearings are highly loaded. This process also is used to restore undersized or worn out surfaces of machine components ( Ref 55 ). The hard anodizing processes produce thicker coatings, from 25...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001308
EISBN: 978-1-62708-170-2
..., the buff is ready for operation. At this stage a lubricant, such as a buffing compound or tallow, may be used to produce a higher reflection. Table 9 describes the equipment and techniques employed in mechanical satin finishing processes. If the satin-finished parts are to be anodized, etching...
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
... Anodizing in the Aircraft/Aerospace Industries , Plating and Surface Finishing , Aug 1991 • Norris J.C. , “Brush Hard Coating Aluminum and Aluminum Alloys,” paper presented at SAE 26th Annual Aerospace/Airline Plating and Metal Finishing Forum and Exposition ( Tulsa, OK ), April 1990...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003680
EISBN: 978-1-62708-182-5
... film. It discusses each step involved in the anodizing process of an aluminum or aluminum alloy specimen. The anodizing process includes pretreatments (degreasing, etching, and polishing), anodizing, coloring, and sealing. The article provides an observation of the morphology of the anodic oxide films...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001243
EISBN: 978-1-62708-170-2
... are for conventional plating solutions; plating times for the proprietary fluoride-free solution are half of those shown. (b) M-16 rifle, barrel and chamber Process and equipment requirements for hard chromium plating using conventional solutions Table 9 Process and equipment requirements for hard...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003215
EISBN: 978-1-62708-199-3
...–100 95–100 Voltage, V 6 6 6 6–12 pH … … 0.8–1.7 <0.6 Anodes Copper (a) Copper (a) Copper (b) Copper (b) (a) Phosphorized copper (0.02 to 0.08% P) is recommended. (b) High-purity, oxygen-free, nonphosphorized copper is recommended. Industrial (Hard) Chromium...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006491
EISBN: 978-1-62708-207-5
... in cost because the process is simple and requires a minimum of time and equipment. The conventional sequence, employing a copper strike over the zinc layer, adds slightly to cost; but after the copper is deposited, the sequence is much the same as for other commonly electroplated metals. Anodic oxidation...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001245
EISBN: 978-1-62708-170-2
... . Internal stress is tensile (indicated by a positive number). Source: Ref 1 Abstract Abstract This article discusses the process considerations and deposit properties of nickel plating. It describes the Watts solution and the anode materials used. The article focuses on the nickel plating...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003215
EISBN: 978-1-62708-199-3
... ) and a catalytic anion in proper proportion. The metal so produced is extremely hard and corrosion resistant. The process is used for rebuilding mismachined or worn parts, for automotive valve stems, piston rings, shock rods, MacPherson struts, the bores of diesel and aircraft cylinders, and for hydraulic...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006395
EISBN: 978-1-62708-192-4
... is connected to an anode and allows current to pass through the plating solution to the part. High deposition rates are possible using jet plating. Electrodeposited coatings are primarily categorized into two classes: hard coatings and soft coatings. As previously introduced in the section “ Deposition...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001254
EISBN: 978-1-62708-170-2
... of ruthenium. This article provides a discussion on the plating operations of these PGMs along with the types of anodes used in the process. References References 1. Reid F.H. , Platinum Metal Plating-A Process and Application Survey , Trans. Inst. Met. Finish. , Vol 48 , 1970 , p 112...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.9781627081702
EISBN: 978-1-62708-170-2
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003833
EISBN: 978-1-62708-183-2
... Coal gas … Resistant Hydrogen sulfide … Resistant Oxygen >1200 >2190 Oxidizes Petroleum and diesel fuel combustion products, hot … Resistant Steam … Resistant Steam, superheated … Resistant Source: Ref 30 , 31 Processing steps and conditions for hard...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001291
EISBN: 978-1-62708-170-2
...Abstract Abstract This article describes the characteristics of continuous cathodic arc sources and filtering process for removing macroparticles from a cathodic arc. It provides information on the types of arc sources and the properties of deposited materials. The advantages, limitations...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001242
EISBN: 978-1-62708-170-2
... Tanks Barrels Anodes Anode Bags Brightness Adhesion Porosity Blistering Roughness Solderability Hardness Leveling Current Density Impurities Purity of Water Used in Composition Agitation Dilute Cyanide and Rochelle Cyanide Baths High-Efficiency Sodium...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.9781627081825
EISBN: 978-1-62708-182-5
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006512
EISBN: 978-1-62708-207-5
.... The colors are also dependent on the alloy being anodized and not all aluminum alloys can be colored with this process. It is used very sparingly in the market today and is replaced by the electrolytic coloring process for the most part ( Ref 1 ). The first work on colored anodic films was done in Japan...