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polymer quenchants

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Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006260
EISBN: 978-1-62708-169-6
... be controlled by proper racking. It concludes with information on agitation and the quench tank system used in the quenching of aluminum alloys. agitation system aluminum alloys cooling rate immersion water quenching polyalkylene glycol polymer quenchants quench sensitivity quench...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005932
EISBN: 978-1-62708-166-5
... polymer itself but to the introduction of nutrient contaminants. Microbiological treatment such as is employed with other aqueous metal working fluids generally will keep under control this foreign biological activity. Polyethyl oxazoline (PEOX) quenchants are synthesized from the polymerization of...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005934
EISBN: 978-1-62708-166-5
... cooling rate hardening low-alloy steel polymer quenchants quenchants quenching steel Heat treatment of steel involves heating to an elevated temperature to facilitate transformation to austenite, which is subsequently followed by a controlled cooling process (quenching) to...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005824
EISBN: 978-1-62708-165-8
..., classification, selection, and maintenance are reviewed in detail. The article addresses the various reasons for quench oil variability and complications due to aging and contamination. brine cooling flow velocity heat-transfer coefficient oil quenchants polyacrylates polyalkylene glycol polymer...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005780
EISBN: 978-1-62708-165-8
... Abstract This article, with the aid of illustrations and curves, describes an experiment used to understand the cooling characteristics and transformation behavior of steel wires during patenting. The two aqueous polymer quenchants used as alternatives for lead baths, are carboxymethyl...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005933
EISBN: 978-1-62708-166-5
... rate, and finally a prolonged convective cooling stage with a very modest cooling rate ( Ref 1 ). Polymer quenchants show a low cooling rate and cannot be used with some common additives and antioxidants. Continuous monitoring of polymer quenchants is required for optimal performance, and they are not...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005923
EISBN: 978-1-62708-166-5
... blanket also is employed to prevent water vapors when a polymer quenchant is employed. The design of the quench chute also can influence the distortion of thin-section parts caused by the impact of the parts at the bottom of the chute or angled plates in the chute itself. Chain curtains or angling of...
Book Chapter

Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005816
EISBN: 978-1-62708-165-8
... volatile liquid quenchants other than water ( Ref 3 ); and high-pressure jets of an oil ( Ref 4 ), water ( Ref 5 , 6 , 7 ), or aqueous polymer solution ( Ref 8 ) under the liquid level in a bath. One advantage of spray quenching, relative to other quench methods, is that a large and adjustable range of...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005944
EISBN: 978-1-62708-166-5
... bismuth, and molten sodium. It also contains tables that list the physical properties of lead, bismuth, sodium, and molten sodium. molten bismuth molten lead molten sodium physical properties quenchants quenching OIL, WATER, AND POLYMER solution baths are frequently used when quenching...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005788
EISBN: 978-1-62708-165-8
... quenchants, only solutions of poly(alkylene glycol) (PAG) copolymer can be tailored or preprogrammed for controllable delayed quenching. The concentration of the polymer is raised to a higher-than-normal level, because control of heat transfer is best achieved with a PAG solution of sufficiently high...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005814
EISBN: 978-1-62708-165-8
... nucleate boiling occurs. Quenching in oils, water, and some polymer quenchants exhibits a slow advance of the wetting front. As can be deduced from Fig. 7 , not only does the wetting front position vary with time, but there is not a single value of the Leidenfrost temperature; instead, it is a function...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005968
EISBN: 978-1-62708-166-5
... determine gas pressure, vacuum level, gas flow, and gas composition. It focuses on their measuring quenchant characteristics, including bulk temperature, viscosity, composition, and cooling efficiency. The article describes the procedures for detecting variability in the incoming product. It presents...
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
... would produce the required amount of cyanide in the bath. This aim was achieved by the use of an organic polymeric material that converts part of the carbonate present in the molten bath to CN − . This regenerator is known as CeControl, and the process is designated as Durofer ( Ref 6 , 7 ). The...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005766
EISBN: 978-1-62708-165-8
... ) that reportedly can be used for continuously monitoring oil and aqueous polymer quenchants to determine fluid flow variation at different quenchant temperatures and fluid compositions ( Ref 25 ). This instrument, like that reported by Keil et al. ( Ref 28 , Ref 29 , 30 ), measures the temperature...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005789
EISBN: 978-1-62708-165-8
... oils, and polymeric quenching media exhibit very great differences in their wetting behavior. Cooling intensity of aqueous polymer quenchants depends on the concentration and molecular weight of the specific polymer, the quenchant temperature, and the agitation rate. Therefore, forced bath convection...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005943
EISBN: 978-1-62708-166-5
... holding tanks at each unit. The electrical component cooling was with distilled water that was cooled using shell and tube heat exchangers (as was the polymer quenchant) with water from a large, 19,000 L (5000 gal), treated water system. This system was in turn kept cool by two evaporative cooling towers...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005924
EISBN: 978-1-62708-166-5
.... Polymers are not flammable, so they provide no fire hazard. In addition, polymers are easily cleaned off after quenching. Polymer quenchants normally contain biocide and rust inhibitors that may need to be monitored. The vapor pocket reduction provided by low polymer-to-water ratios has been found to make...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003196
EISBN: 978-1-62708-199-3
... generally is accomplished by immersion in water, oil, polymer solution, or salt, although forced air is sometimes used. As a result of quenching, production parts must develop an acceptable as-quenched microstructure and, in critical areas, mechanical properties that will meet minimum specifications after...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005761
EISBN: 978-1-62708-165-8
... brittleness or toughness, and quenchant required Various quenchants have different cooling characteristics and cooling rates. Different materials and part geometry have different quenching rate requirements in order to produce a martensitic microstructure that is free of cracking and has reduced...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003103
EISBN: 978-1-62708-199-3
... be carefully reviewed to determine whether the amount of distortion and the possibility of cracking as a result of water quenching will permit taking advantage of the lower cost of water quenching. Oil, salt, and synthetic water-polymer quenchants are alternatives, but their use often requires steels...