1-20 of 201 Search Results for

water immersion quenching

Sort by
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560453
EISBN: 978-1-62708-291-4
.... Alkaline Chromate Composition Dissolve chromic acid in water. Add caustic solid very slowly over at least 5 min. Method of Use Heat solution to boiling point (118 to 120 °C). Immerse specimen for 5 to 20 min. Remove quickly and place in a container of cold water. Rinse and dry...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050139
EISBN: 978-1-62708-311-9
... to verify whether a quenchant can cool a workpiece fast enough to achieve martensitic transformation without cracking or distortion. induction heat treating quenchants quenching WHEN INDUCTION HARDENING, the workpieces are cooled by surrounding, spraying, or immersing the part in a quenchant...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440055
EISBN: 978-1-62708-262-4
...), removed, and cooled in still air (as in normalizing), or quickly cooled (quenching) as by immersion in oil or water. Figures 1 , 2 , 3 , and 4 illustrate specific types of batch-type furnaces. Fig. 4 Batch-type multiple-purpose furnace that features an integral quenching system. Source: Ref 4...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900053
EISBN: 978-1-62708-350-8
... with a water quench. At this point the process may be considered complete, or the part can be mechanically polished. After polishing, the part can be immersed in another oxidizing bath to complete the procedure. The metallurgical results are the same as with the conventional gas nitriding process...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400215
EISBN: 978-1-62708-258-7
... repolishing an overetched specimen. Generally, etchants are used at room temperature. However, some etchants are heated for optimal results, for example, alkaline sodium picrate is used at boiling-water temperature. After immersion, the specimen is rinsed thoroughly in a stream of running water to flush away...
Image
Published: 01 August 2015
Fig. 6.1 Photo sequence of a hot steel rod being quenched in a 25% polyalkylene glycol polymer in water solution. (a) When the rod is immersed, a polymer film forms on its surface. (b) After 15 s, polymer activates and begins to boil. (c) After 25 s, boiling occurs over the entire rod More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850610
EISBN: 978-1-62708-260-0
.... Grain contrast usually poor. The 0.5% concentration of HF is very popular. Keller's reagent, very popular general-purpose reagent for Al and Al alloys, except high-Si alloys. Immerse sample 10-20 s, wash in warm water. Can follow with a dip in cone. HNO,. Outlines all common constituents, reveals grain...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2024
DOI: 10.31399/asm.tb.phtpp.t59380017
EISBN: 978-1-62708-456-7
... do not contain the oxygen, carbon dioxide, and water vapor levels found in most nonvacuum (or atmosphere) furnaces, immersed parts are protected further from scale formation vacuum furnaces provide similar advantages in surface protection. Distortion Control Salt baths offer a way to minimize...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140117
EISBN: 978-1-62708-264-8
... cooling to reduce scaling (oxidation) and distortion and to minimize cracking. This high-temperature quenching is sometimes called interrupted quenching. When hot steel is immersed rapidly in molten salts, the vapor blanket does not form as it does with water, polymer, and oil quenchants. This results...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030169
EISBN: 978-1-62708-282-2
... to perforation in aggressive waters. Anodized Films A commercial surface treatment unique to aluminum is anodizing. The object to be treated is immersed as the anode in an acid electrolyte, and a direct current is applied. Oxidation of the surface occurs to produce a greatly thickened, hard, porous film...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 1998
DOI: 10.31399/asm.tb.ts5.t65900109
EISBN: 978-1-62708-358-4
...–1290 1850–2350 X Isothermal quench 540–705 1000–1300 X Air cool Room temperature Room temperature 6X, 12X, 24X Wash, hot water 80–95 180–200 6X Rinse, hot water 80–95 180–200 X (a) See Table 6-4 for drill sizes and times in the high heat indicated by an “X...
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
.... Parts are immersed in the oxidizing bath for 5 to 15 min, quenched in water, soaked in a solution of 5 to 10% sulfuric acid at 160 °F (70 °C) for 1 to 5 min, and then dipped in a solution of 15 to 20% nitric acid and 2 to 4% hydrofluoric acid at 130 to 140 °F (54 to 60 °C) for 2 to 15 min. A typical...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310055
EISBN: 978-1-62708-326-3
... from a suitable elevated temperature generally is accomplished by immersion of the hot steel into a vaporizable fluid such as water; petroleum, vegetable, or animal oil; aqueous polymer solution; or an aqueous (salt) solution. Other quenching media include molten salt, fluidized bed, or gas, although...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440159
EISBN: 978-1-62708-262-4
..., “Fundamentals of the Heat Treating of Steel,” drastic quenching is required only to exceed the critical cooling rate down to the lower temperature range, wherein cooling rate is no longer critical. The practical results are that steels (or cast irons) that might crack when water quenched by immersion can...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310163
EISBN: 978-1-62708-326-3
... cooling of steel from an elevated temperature. Usually, but not always, quenching is done by immersion into a liquid such as water or oil, where the steel is rapidly cooled to approximately the temperature of the quenching medium. The choice of quenching medium depends on the cooling rate required...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720161
EISBN: 978-1-62708-305-8
... and tempered, spheroidized, austempered Sodium metabisulfite A 8 g Na 2 S 2 O 5 , 100 mL distilled water General reagent for steel; results similar to picral; etching time, a few seconds to 1 min Darkens as-quenched martensite B 1 g Na 2 S 2 O 5 , dilute to 100 mL with distilled water Immerse...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.9781627082600
EISBN: 978-1-62708-260-0
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250249
EISBN: 978-1-62708-345-4
... layers to above the material transformation range is surprisingly brief, a matter of a few seconds. Selective heating and, therefore, hardening, is accomplished by suitable design of the coils or inductor blocks. At the end of the heating cycle, the steel usually is quenched by water jets passing through...
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
...). Quench with water. Hold 1 min. Immerse in sulfuric acid, 10 to 40 vol%, for 2 to 5 min at 50 to 60 °C (120–140 °F). Rinse with water for 1 min. Repeat if necessary. Pickle in nitric-hydrofluoric acid solution, time and concentration as required. The same producer also uses a sodium...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870063
EISBN: 978-1-62708-299-0
... containing 4% Cu, which was heat treated at 500 °C (930 °F), quenched in cold water, and aged at 190 °C (375 °F). Source: Ref 2 Figure 5 shows the results of potential measurements of high-purity aluminum and various binary Al-Cu alloys with copper contents up to and exceeding the limit of solid...