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alkaline etching

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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
... coating of aluminum. These include abrasive blast cleaning, barrel finishing, polishing, buffing, satin finishing, chemical cleaning, chemical brightening, electrolytic brightening, chemical etching, alkaline etching, acid etching, chemical conversion coating, electroplating, immersion plating...
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
... Abstract This article provides a detailed account of the various alkaline and acid plating baths used for electrolytic copper plating. Dilute cyanide and Rochelle cyanide baths, high-efficiency sodium and potassium cyanide baths, alkaline noncyanide copper plating baths, and alkaline copper...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001221
EISBN: 978-1-62708-170-2
...) NaCN 20–45 g/L (3–6 oz/gal) Room temperature 30–60 5 Anodic acid etch (c) H 2 SO 4 250–1005 g/L (33.5–134 oz/gal) 30 max 86 max 60 max Low-carbon steel bulk-processed parts 6 Alkaline cleaner (d) Alkali 30–60 g/L (4–8 oz/gal) 82–99 180–210 60–120 7 Acid pickle HCl 25...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006016
EISBN: 978-1-62708-172-6
..., and chemical contaminants. When inspecting concrete prior to coating installation, three areas of concern exist: surface roughness, moisture content in concrete, and acidity/alkalinity of the surface. The article provides information on the industry standards for assessing surface cleanliness. It...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003213
EISBN: 978-1-62708-199-3
..., dry, or dip in rust preventative Solvent wipe Vapor degrease Phosphoric acid etch Solvent wipe Emulsion dip or spray, rinse Vapor degrease Alkaline spray Solvent wipe Emulsion soak, barrel rinse, electrolytic alkaline rinse, hydrochloric acid dip, rinse Continuous high production Automatic...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001315
EISBN: 978-1-62708-170-2
... finishing processes. It explains how to remove parting lines and presents several mechanical finishing methods, including surface polishing, brushing, controlled shot peening, and buffing. It also provides information on solvent cleaning, emulsion cleaning, aqueous detergent or alkaline cleaning...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001305
EISBN: 978-1-62708-170-2
... provides an overview of the various types of stainless steels and describes the commonly used cleaning methods, namely, alkaline cleaning, emulsion cleaning, solvent cleaning, vapor degreasing, ultrasonic cleaning, and acid cleaning. Finishing operations of stainless steels, such as grinding, polishing...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003215
EISBN: 978-1-62708-199-3
... Abstract Copper can be electrodeposited from numerous electrolytes. Cyanide and pyrophosphate alkalines, along with sulfate and fluoborate acid baths, are the primary electrolytes used in copper plating. This article provides information on the chemical composition, plating baths, and operating...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003221
EISBN: 978-1-62708-199-3
... aluminum parts. Bright dipping immediately prior to burnishing will aid in producing a better finish. Other preliminary treatments also are helpful in specific instances, particularly for cast aluminum parts. One of these pretreatments entails etching the castings for 20 s in an alkaline solution at 82 °C...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001312
EISBN: 978-1-62708-170-2
... descaling, pickling or etching, anodizing, autoclaving, polishing, buffing, vapor phase nitriding, and electroplating. It also provides several application examples. anodizing autoclaving blast cleaning buffing chemical descaling cleaning electroplating etching finishing forming hafnium...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003245
EISBN: 978-1-62708-199-3
... glycerol Dip etch for up to 20 s High-chromium irons Potassium ferricyanide 10% alkaline aqueous solution of potassium ferricyanide Dip etch for 5–30 s, in etchant at 50 °C (122 °F) High-chromium irons Murakami's reagent 10 g KOH, 10 g K 3 Fe(CN) 6 (1) Dip etch for 2–3 min (2) Dip etch for 10...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001256
EISBN: 978-1-62708-170-2
... Abstract Electrodeposition of tin alloys is used to protect steel against corrosion or wear, to impart resistance to etching, and to facilitate soldering. This article focuses on the compositions, operating conditions, advantages, and limitations of methane sulfonic acid plating solutions and...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003244
EISBN: 978-1-62708-199-3
..., either manually or by the use of image analyzers. Preparation of metallographic specimens generally requires five major operations: sectioning, mounting, grinding, chemical polishing, and etching. The article provides information on the principles of technique selection in mechanical polishing, and...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001832
EISBN: 978-1-62708-181-8
.... If the above techniques are attempted and prove ineffective, the chemical-etch cleaning technique, which involves treating the surface with mild acids or alkaline solutions, should be implemented. This technique should be used only as a last resort because it involves possible chemical attack of the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003247
EISBN: 978-1-62708-199-3
... bronze 10% aqueous solution of copper ammonium chloride plus ammonium hydroxide to neutrality or alkalinity Immersion. Wash specimen thoroughly. Coppers, brasses, nickel silver; darkening large areas of beta in alpha-beta brass FeCl, g HCl, mL Water, mL Immersion or swabbing. Etch lightly or...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001307
EISBN: 978-1-62708-170-2
... methods for removing oxides or scale from heat-resistant alloys, in order of decreasing preference based on economic considerations, are acid pickling, abrasive cleaning by tumbling or blasting, and descaling in molten salt. Alkaline scale conditioning is helpful in modifying the scale to facilitate its...
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
... transmitter 50 mm diam 2 in. diam 5052-O Burnish, alkaline etch Sulfuric acid Dye, seal (k) Gas mask Wheel pistons Up to 5200 mm 2 area Up to 8 in. 2 area 6151 Machine Sulfuric acid (l) Seal Wear and corrosion (m) Computer chip hat 160 by 160 6.2 by 6.2 6063-T6 Non-etch clean...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001227
EISBN: 978-1-62708-170-2
... without etching by hand wiping with a pastelike compound of about 90% ammonium dihydrogen phosphate and 10% wetting agent, followed by wipe rinsing. Combinations of alkaline and acid cleaning methods are often used advantageously. Machined parts having heavy deposits of oil, grease, and light blushing...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001310
EISBN: 978-1-62708-170-2
... (h) NaOH, 5–10% … 82–100 (180–212) (i) 1 2 Low-carbon steel 8 Hot rinse (j) Water … 71–82 (160–180) (k) Low-carbon steel (a) Vapor degreasing, solvent washing, or conventional alkaline cleaning may be used instead of this special mild-etching cleaner. Metal...
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
... Copper 0.013 Gallium 0.014 Gold 0.006 Indium 0.009 Iridium 0.069 Iron 0.025 Lead 0.006 Mercury 0.008 Nickel acid 0.047 Nickel alkaline 0.017 Nickel, black 0.025 Nickel, natural 0.025 Palladium 0.019 Platinum 0.015 Rhodium 0.030 Silver...