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alkaline cleaning

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Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001222
EISBN: 978-1-62708-170-2
... Abstract Alkaline cleaning is a commonly used method for removing a wide variety of soils from the surface of metals. This article focuses on the composition, operating conditions, and test and control of alkaline cleaners, as well as equipment used and their application methods. It describes...
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
... compounds from magnetic particle and fluorescent penetrant inspection. The cleaning processes include emulsion cleaning, electrolytic alkaline cleaning, acid cleaning, solvent cleaning, vapor degreasing, alkaline cleaning, ultrasonic cleaning, and glass bead cleaning. The article provides guidelines...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005777
EISBN: 978-1-62708-165-8
..., mechanical, chemical, and electrochemical and their effectiveness and applicability. The mechanical cleaning methods include grinding, brushing, steam or flame jet cleaning, abrasive blasting, and tumbling. Solvent cleaning, emulsion cleaning, alkaline cleaning, acid cleaning, pickling, and descaling...
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 Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001269
EISBN: 978-1-62708-170-2
... Abstract This article focuses on the various techniques for removing contaminants in the surface preparation of steel for hot-dip coatings: wet cleaning methods, including alkaline cleaning, electrolytic cleaning, chemical pickling, and electrolytic pickling; flame cleaning and furnace...
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
... and 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...
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
... describes common cleaning processes, including alkaline, electrolytic, solvent, emulsion, molten salt bath, ultrasonic and acid cleaning as well as pickling and abrasive blasting. It also explains how to select the appropriate process for a given soil type and surface composition. abrasive blast...
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Published: 01 January 1994
Fig. 12 Preparing magnesium alloys for copper plating. See text for details of solution composition and other operating conditions. Operation Cycle time, min Solution temperature Tank material °C °F Alkaline cleaning (a) 3–10 87–100 190–212 Low-carbon steel Acid More
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Published: 01 January 1994
Fig. 5 Operations sequence in sulfuric acid anodizing of architectural parts Solution No. Type of solution Composition Operating temperature Cycle time, min °C °F 1 Alkaline cleaning Alkali, inhibited 60–71 140–160 2–4 2 Alkaline etching NaOH, 5 wt% 50–71 120 More
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Published: 01 January 1994
3.5 82 180 3–10 Sulfuric acid 18.0 3 Chromate dip Chromic sulfate 0.2 Ambient 1–6 Potassium dichromate 14.4 Sodium hydroxide 7.75 (a) Vapor degreasing may be used instead of alkaline cleaning. (b) Either inhibited or mildly etching (uninhibited) cleaners can More
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Published: 01 January 1994
3.5 82 180 3–10 Sulfuric acid 18.0 … … … 3 Chromate dip Chromic sulfate 0.2 Ambient Ambient 1–6 Potassium dichromate 14.4 … … … Sodium hydroxide 7.75 … … … (a) Vapor degreasing may be used instead of alkaline cleaning. (b) Either inhibited or mildly etching More
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003221
EISBN: 978-1-62708-199-3
... contaminants to minimize overloading of the subsequently used alkaline cleaners. Emulsifiable Solvents Emulsifiable solvents also are used to clean aluminum. These are organic solvents, such as kerosine, Stoddard solvent, and mineral spirits, to which small amounts of emulsifiers and surfactants...
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
..., and 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.a0001227
EISBN: 978-1-62708-170-2
... when used anodically. Sulfuric acid baths are most commonly electrolyzed ( Table 1 ) and are usually used as a final cleaner before plating. All grease and oil should be removed before electrolytic cleaning, to reduce contaminating of the electrolytic bath. If alkaline cleaners are used as precleaners...
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Published: 01 January 1994
Fig. 6 Operations sequence in sulfuric acid anodizing of automotive bright trim Solution No. Type of solution Composition Operating temperature Cycle time, min °C °F 1 Alkaline cleaning Alkali, inhibited 60–71 140–160 2–4 2 Chemical brightening H 3 PO 4 and HNO 3 More
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Published: 01 December 1998
Fig. 2 Operations sequence in sulfuric acid anodizing of automotive bright trim Solution No. Type of solution Composition Operating temperature Cycle time, min °C °F 1 Alkaline cleaning Alkali, inhibited 60–71 140–160 2–4 2 Chemical brightening H 3 PO 4 and HNO 3 More
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Published: 01 January 1994
) Citric acid 40 g/L (5.4 oz/gal) Wetting agent (n) 0.7 g/L (0.01 oz/gal) (o) pH (colorimetric) 3.0 (a) Alkaline cleaning may be preceded by vapor degreasing, emulsion cleaning, or mechanical cleaning. (b) Type and strength of solution governed by degree of surface contamination More
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
...% nickel silver wire is pretreated in a proprietary hot alkaline cleaning solution and then annealed in a controlled atmosphere furnace to produce a clean and bright surface. The wire is subsequently pickled in sulfuric acid and treated in a dichromate solution to remove zinc sweat. The wire is then finish...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003678
EISBN: 978-1-62708-182-5
... baths. Zinc and aluminum are normally degreased at lower pH because of their increased corrosion rate at high pH. Commercial alkaline degreasing baths contain numerous additives. Silicates have good emulsifying action and dispersing properties. During cleaning of aluminum, zinc, and zinc-coated...
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
..., die cast Wet bowl abraded, no additional finishing Automotive interior brackets, die cast Chopped aluminum wire blast Automotive valve/cam covers, die cast Wet abraded, alkaline cleaned, iron phosphate treated, electrostatic powder coated (acrylic, polyester, or epoxy-polyester hybrid...