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acid cleaning

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120085
EISBN: 978-1-62708-269-3
... 0.8 30 10% (a) 38 100 400 16.0 30 0.25% (a) 95 205 76 3.0 10 2% (b) Boiling point Boiling point 125 5.0 17 7–8% (b) 60 140 125 5.0 A nitric-hydrofluoric acid solution, which is the final stage brightening in most alloy cleaning lines, should be maintained...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740325
EISBN: 978-1-62708-308-9
... on the degree of cleanliness required and subsequent operations to be performed. Abrasive blasting produces the lowest degree of cleanliness. Solvent, solvent vapor degrease, emulsion soak, alkaline soak, alkaline electroclean, alkaline plus acid cleaning, and finally ultrasonics each progressively produces...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030096
EISBN: 978-1-62708-282-2
.... Two forms of attack are evident: preferential attack of the weld metal ferrite, suffered during HCl acid cleaning, and less severe attack in the sensitized HAZ center. Source: Ref 5 Fig. 5 Preferential corrosion of the vermicular ferrite phase in austenitic stainless steel weld metal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820043
EISBN: 978-1-62708-339-3
... effect on localized corrosion resistance in oxidising acid-chloride solutions. Postweld cleaning is often specified to remove the heat-tinted metal formed during welding. Recent work has shown that cleaning by stainless steel wire brushing can lower the corrosion resistance of a stainless steel...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280203
EISBN: 978-1-62708-267-9
... for removing metal contamination. A typical procedure for chemically removing iron, zinc, and thin films of lead is to first perform vapor degreasing or alkaline cleaning, and then immerse the parts in a 1 to 1 solution (by volume) of nitric acid (1.41 specific gravity, or sp gr) and water for 15 to 30 min...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310193
EISBN: 978-1-62708-286-0
...Recommended cleaning methods Table 1 Recommended cleaning methods Contaminant Cleaning recommendation Comments Exterior soiling Soap, detergent, or dilute ammonia Use a soft cloth or sponge, clean water; dry with forced air or a dry cloth. Fingerprints Detergent and warm...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290165
EISBN: 978-1-62708-306-5
..., as well as a rapid production rate. Precleaning can also greatly reduce repair work due to defective soldered joints. Two general methods of cleaning are chemical and mechanical. The most common of these are degreasing, acid cleaning, mechanical cleaning with abrasives, and chemical etching. Coating...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310233
EISBN: 978-1-62708-286-0
... Fig. 1 Bacterial retention as a function of material and cleaning time. Source: Ref 4 Abstract Abstract The case for using stainless steel in appliances of all types, whether they are commercial or residential, relates to it being able to provide the best value over the intended service...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350125
EISBN: 978-1-62708-315-7
... Halogenated Alcohol Acids Butadiene rubber BR P G E F–G P P P G F–G Low Natural rubber, isoprene rubber NR, IR P G E F–G P P P G F–G Low Chloroprene rubber CR VG VG G E G F P G F–E Low-medium Styrene-butadience (nitrile) rubber SBR P G E F–G P P P G F...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290243
EISBN: 978-1-62708-306-5
... of either etching or anodizing in acid solutions. These techniques result in microscopically rough adherend morphologies, which have been shown to produce the best bond durability. Because metallic cleaning is such a critical step, dedicated processing lines are normally constructed, and chemical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230441
EISBN: 978-1-62708-298-3
... [ Small and Courtney 2005 ]. Surface preparation is claimed to be by far the most important factor in producing a good adhesive bond [ Brush Wellman 2001 , Switz 1979 ]. The main steps are degreasing, acid cleaning, neutralizing, drying, applying the adhesive, and subjecting the joint to the recommended...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910363
EISBN: 978-1-62708-250-1
.... Such conditions can be met, for instance, in cooling water recirculating systems, oil production, oil refining, and acid pickling of steel components. One of the more recognizable applications for inhibitors is in antifreeze for automobile radiators. The application of inhibitors must be viewed with caution...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870191
EISBN: 978-1-62708-299-0
... Metals with metals Metals with other materials Quality control Movement Flowing fluids Parts moving in fluids Two-phase fluids Temperature Oxidation, scales Heat-transfer effects Molten deposits Condensation and dewpoint Control Surface cleaning and preparation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220039
EISBN: 978-1-62708-259-4
... Humfrey First stage: neutral Humfrey   Distilled water: 500 mL   Cu(NH 3 ) 4 Cl 2 : 60 g Second stage: acid Humfrey   Distilled water: 500 mL   Cu(NH 3 ) 4 Cl 2 : 60 g Hydrochloric acid: 25 mL Dendritic segregation, continuous cast products structure, high cleanness steel In the following...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780141
EISBN: 978-1-62708-268-6
... are not changed frequently. Sometimes, contaminants can be airborne. This may occur if dust or paints are present. Some processes use etchants with a subsequent rinse. Very small-diameter wires are produced by exposing a larger-diameter wire to an acid etch to reduce the diameter and then rinsing the wire...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780383
EISBN: 978-1-62708-281-5
... Chemical analysis of (1) monolayers on surfaces made by in situ fracturing, and (2) low- Z elements on surfaces cleaned by in situ ion etching ~100 nm (Auger) 10 nm (SEM mode) ~100 nm (Auger) 1–3 μm (EDS) Requires ultrahigh vacuum and careful surface preparation; can also detect electron loss signal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400087
EISBN: 978-1-62708-258-7
... Fig. 4.1 Henry Clifton Sorby, the father of metallography Fig. 4.2 The first macrograph of the microstructure of steel, Sorby’s 1864 macrograph of blister steel. Etched in very dilute nitric acid. 9× Fig. 4.4 A macrograph of the Elbogen iron meteorite prepared in 1808...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870235
EISBN: 978-1-62708-314-0
... honing, alkaline cleaning, and acid etching results in a complex chemically activated surface topography, increasing the surface area that the adhesive can penetrate and adhere to. The adhesive bond strength is a result of both mechanical interlocking and chemical bonding. Other methods, such as dry...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850060
EISBN: 978-1-62708-260-0
... Opaque Attacked by strong acids and alkalies Diallyl phthalate (asbestos-filled) 140–160 2500–3000 6–12 150 3–5 × 10 –5 190 0.8 Opaque Attacked by strong acids and alkalies (a) Data compiled from the literature, see Ref. 10. (b) Determined by method ASTM D648-56. (c) Specimen...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310213
EISBN: 978-1-62708-286-0
... and dry. Avoid cleaning pastes with abrasive additions. Cream cleaners are available with soft calcium carbonate additions. Avoid chloride-containing solutions. Localized rust stains caused by carbon steel contamination Proprietary gels or 10% phosphoric acid solution (followed by ammonia and water...