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molten salt bath 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
... Restrictions on Descaling Variety of Scale In-Process Coating Effects Belt Grinding Abrasive Blasting High-Temperature Molten Salt Low-Temperature Baths Aqueous Caustic Descaling Special Coatings and Surface Finishes Cleaning and Descaling Problems Removal of Scale Molten Salt...
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
... Molten Salt Bath Cleaning Ultrasonic Cleaning Substrate Considerations The objective of all high-precision abrasive finishing methods is to achieve geometrically precise components or surfaces of controlled texture or surface finish. Honing Superfinishing Polishing and buffing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440055
EISBN: 978-1-62708-262-4
... cleaning after heat treating, which can be difficult, especially for parts of complex design. The simplest form of molten salt bath involves heating a metal pot filled with a low-melting-temperature salt with electric immersion heaters. This type of salt bath, however, is applicable only...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080409
EISBN: 978-1-62708-304-1
... 0.122 (4.8) 230 0.140 (5.5) S 0.168 (6.6) RA330 0.191 (7.5) 600 0.196 (7.7) A fresh salt bath was used for each test run; air was used for the cover gas. (a) Mainly intergranular attack; no metal wastage. Source: Ref 7 and 8 Results of corrosion tests in molten eutectic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440141
EISBN: 978-1-62708-262-4
... carburizing” should not be confused with drip carburizing. Liquid carburizing is a method of case hardening ferrous metal parts by holding them above their transformation temperature in a molten salt bath. The salt decomposes and releases carbon and sometimes nitrogen that diffuse into the work metal surfaces...
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
... Bath Descaling Background Surface Finishes by Chemical (Electrochemical) Means Surface Finishes by Mechanical Means Comments Cleaning is required to remove contaminants from the surfaces of parts made of superalloys. Shop soils such as oil, grease, and cutting fluids can be removed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350125
EISBN: 978-1-62708-315-7
... Alloys , Corrosion , Vol 13 , ASM Handbook , ASM International , 1987 , p 770 – 783 30. Stern K.H. , Electrodeposition of Refractory Metals from Molten Salts , Metallurgical and Ceramic Protective Coatings , Stern K. , Ed., Chapman and Hall , London , 1996 , p 9 10.1007...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.9781627083157
EISBN: 978-1-62708-315-7
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
... is to dissolve the oxide layer on the joint area and thereby expose clean base metal. It can be concluded that wetting is the ability of the molten brazing filler metal to adhere to the surface of a metal in the solid state and, when cooled below its solidus temperature, to make a strong bond with that metal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720183
EISBN: 978-1-62708-305-8
... removal Acid cleaning Strong solutions for removing heavy scale; solutions for light scale; weak (etching) solutions for removing lightly smeared metal Molten salt bath cleaning Conditioning and removing heavy scale Solvent Vapor degreasing Removing typical shop soil, oil, and grease...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410551
EISBN: 978-1-62708-265-5
... treated subsequent to deposition. Hard alloy carbide, nitride, and carbonitride coatings can be applied to steels by means of salt bath processing. One such technique, the Toyota Diffusion (TD) coating process, uses molten borax with additions of carbide-forming elements, such as vanadium, niobium...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240395
EISBN: 978-1-62708-251-8
...: Ref 1 Liquid nitriding, conducted in a molten salt bath containing either cyanides or cyanates, is conducted at temperatures similar to gas nitriding. As opposed to salt bath carburizing, liquid nitriding can be used to treat finished parts because dimensional stability is maintained due...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060197
EISBN: 978-1-62708-261-7
... controls required; can be dangerous Liquid Diffused carbon and possibly nitrogen 815–980 (1500–1800) 50 μm–1.5 mm (2–60 mils) 50–65 (a) Low-carbon steels, low-carbon alloy steels Faster than pack and gas processes; can pose salt disposal problem; salt baths require frequent maintenance Vacuum...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310163
EISBN: 978-1-62708-326-3
... and operating temperatures for salt baths used in tempering Table 6 Compositions and operating temperatures for salt baths used in tempering Class Composition of bath, % Sodium nitrite Sodium nitrite Potassium nitrite Sodium carbonate Sodium chloride Potassiumchloride Barium chloride Class...
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
... of strong acids and complexing agents is required to get pickling to occur at an economically acceptable rate. Hexavalent chromium (Cr +6 ) is much more readily soluble in aqueous solutions, for example, oxidizing treatments such as Kolene, [1] a molten mixture of nitrate salt and hydroxide...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910363
EISBN: 978-1-62708-250-1
... protective coatings. Paint applied over rust, dirt, or oil will bond poorly (or not at all) to the substrate, and early paint failures will usually result. A clean surface is free of such contaminants as rust, dirt and dust, salts, oil and grease, old paint, and mill scale. Other areas of surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870191
EISBN: 978-1-62708-299-0
... Molten deposits Condensation and dewpoint Control Surface cleaning and preparation Coatings Cathodic protection Inhibitors Inspection Planned maintenance Source: Ref 1 Specified requirements for alclad products Table 4 Specified requirements for alclad products...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350095
EISBN: 978-1-62708-315-7
... 815–980 (1500–1800) 50 μm–1.5 mm (2–60 mils) 50–65 (a) Low-carbon steels, low-carbon alloy steels Faster than pack and gas processes, can pose salt disposal problem, salt baths require frequent maintenance Vacuum Diffused carbon 815–1090 (1500–2000) 75 μm–1.5 mm (3–60 mils) 50–63 (a) Low...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440097
EISBN: 978-1-62708-262-4
... (1500 °F). Quench in molten salt bath at 315 °C (600 °F). Hold at temperature for at least 1 h. Air cool. No tempering required. A more detailed discussion of the austempering practice is given at the end of this chapter. As-quenched hardness from 62 to 65 HRC. This maximum hardness can be adjusted...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740271
EISBN: 978-1-62708-308-9
... reaction or be allowed to transform to lower bainite. Martempering The most frequent type of interrupted quenching process is called martempering, shown in Fig. 18 . In martempering, the part is quenched into a molten salt bath at a temperature just above the M s temperature. When the part reaches...