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molten salt bath cleaning

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Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001225
EISBN: 978-1-62708-170-2
... Abstract Molten salt baths are anhydrous, fused chemical baths used at elevated temperatures for a variety of industrial cleaning applications. This article discusses their applications in paint stripping, polymer removal, casting cleaning, glass removal, and plasma/flame spray removal...
Image
Published: 01 January 1994
Fig. 3 Schematic of an enclosed molten salt bath cleaning line More
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...
Book Chapter

By Daryl D. Peter
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001388
EISBN: 978-1-62708-173-3
... Abstract This article describes the dip brazing process and the principal types of furnaces used for molten-salt-bath dip-brazing applications. It provides information on equipment maintenance, which is divided into temperature control, control of the liquid, and maintenance of the vessel...
Book Chapter

By J.R. Keough
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005820
EISBN: 978-1-62708-165-8
... of water. This is repeated at a pace suitable for the heating capacity of the system until the new bath temperature exceeds the melt point of the target nitrite-nitrate salt mixture. Then agitation should be initiated and dry, granular salt is added (at ratio) until sufficient volume of the desired molten...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003220
EISBN: 978-1-62708-199-3
... of stainless steel. This article describes the surface treatment of stainless steels including abrasive blast cleaning, acid pickling, salt bath descaling, passivation treatments, electropolishing, and the necessary coating processes involved. It also describes the surface treatment of heat-resistant alloys...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005778
EISBN: 978-1-62708-165-8
... cleaning (that is, sandblasting) or acid pickling prior to carburizing in the noncyanide mixture. It is vital that parts be completely dry before immersing the components in the molten bath. Low-Toxicity and Regenerable Salt Bath Processes <xref rid="a0005778-ref2" ref-type="bibr">(Ref 2...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005300
EISBN: 978-1-62708-187-0
... Castings” in this Volume) Aluminum Fluxing Fluxing is a term commonly used in foundries, especially within the melting department work force, to refer only to the addition of chemical compounds to clean molten aluminum alloy baths in either the furnaces (melting or holding) or the transfer...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005929
EISBN: 978-1-62708-166-5
... carburizing, liquid nitriding, austempering, martempering (marquench and tempering), reheating, and other operations. Molten salt baths have a number of unique process advantages including efficient furnaces for heating and more rapid heating rates and more uniform temperature control. Molten salts also...
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
... Etching Phosphoric acid is often used as an etchant for nonferrous metals (such as copper, brass, aluminum, and zinc) to enhance paint adhesion. A detergent-bearing iron phosphating solution is often ideal for this sort of combined cleaning and etching approach. Molten Salt Bath Cleaning...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001455
EISBN: 978-1-62708-173-3
... depletes the level of the molten salt in the dip pot, necessitating more-frequent additions of dry flux to the bath and resulting in higher costs. The bulk of the salt is removed by immersing the fixture and brazement in a bath of boiling water. Then, the brazement is separated from the fixture and put...
Series: ASM Handbook
Volume: 4F
Publisher: ASM International
Published: 01 February 2024
DOI: 10.31399/asm.hb.v4F.a0007009
EISBN: 978-1-62708-450-5
... and also presents safety precautions recommended for the use of martempering oils. Finally, the article explains the effect of agitation and water in a molten salt bath. austempering marquenching martempering molten salt bath steel MARTEMPERING is a form of delayed, or interrupted, quenching...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006302
EISBN: 978-1-62708-179-5
.... In preparation for brazing, the steel plate was cleaned by degreasing in trichlorethylene. The gray iron liners were cleaned electrolytically in a bath of molten salt at 460 °C (860 °F)⋅for a total time of 35 min, after which they were immersed first in cold water and then in water at 70 °C (160 °F). (Details...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005776
EISBN: 978-1-62708-165-8
.... case depth case hardness liquid nitriding liquid nitrocarburizing safety precautions salt bath furnaces salt bath nitrocarburizing steel LIQUID NITRIDING (nitriding in a molten salt bath) employs the same temperature range as gas nitriding, that is, 510 to 580 °C (950 to 1075 °F). The case...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004218
EISBN: 978-1-62708-184-9
... for various furnace parts, such as electrodes, thermocouple protection tubes, and pots for salt baths. Molten-salt corrosion of ferrous and nonferrous metals has been reported ( Ref 13 ), showing embrittlement of the alloy via grain-boundary penetration. Corrosion data in molten sodium-potassium nitrate...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005802
EISBN: 978-1-62708-165-8
... transformation diagram showing difference between conventional hardening, austempering, and martempering (step quenching). Adapted from Ref 3 The interrupted quench hardening treatments attempt to equalize the temperature within the workpiece (quenched into a molten salt bath) before subsequent...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001273
EISBN: 978-1-62708-170-2
... coils of low-carbon steel in ribbon form first through appropriate cleaning and tinning baths and then through a stream of molten babbitt, which is gravity cast on the moving strip. The strip is immediately water-chilled from below. After excess babbitt is removed, the stock is recoiled and is ready...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005958
EISBN: 978-1-62708-168-9
... (e.g., oxidation or decarburization) at the surface of the tools. To fulfill these requirements different process solutions were developed over the years. Salt Bath Furnaces Molten salts of various compositions are well adapted to all operations in the heat treatment of tool steels. For tools...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001313
EISBN: 978-1-62708-170-2
..., friable; SF, semi-friable; T, tough. Source: Ref 1 Chemical Cleaning and Polishing of Molybdenum and Tungsten Surfaces Molten Caustic Process To remove the heavy oxide scale from tungsten, molybdenum, and their alloys, the molten caustic process is used. The molten caustic bath can...
Image
Published: 01 January 1994
Fig. 1 Schematic cross section of the surface of a cast iron component as it is modified by cleaning in a molten salt bath. (a) As-cast. Note surface scale, burned-in core/mold sand particles, and flake graphite extending to surface. (b) After first reduction cycle. Exposed sand particles have More