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hot box process

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003172
EISBN: 978-1-62708-199-3
..., dry sand molds, resin-bonded sand molds, and sodium silicate bonded sand. The article describes the casting processes that use these molds, including the no-bake process, cold box process, hot box process, the CO2 process, lost foam casting process and vacuum molding process. The casting processes...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005244
EISBN: 978-1-62708-187-0
..., and additives used in coremaking. It discusses the curing of compacted cores by core baking and the hot box processes. The article provides an overview of the core coatings, assembling and core setting, coring of tortuous passages, and cores in permanent mold castings and investment castings. It also discusses...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004027
EISBN: 978-1-62708-185-6
... Abstract The systematic study of microstructural evolution during deformation under hot working conditions is important in controlling processing variables to achieve dimensional accuracy. This article explains the microstructural features that need to be modeled and provides an outline...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006297
EISBN: 978-1-62708-179-5
... the gaseous or vapor catalyst to the core box; gassing pressure values are adjustable according to the specific process variables. Purging and washing and, in some cases, curing with hot air are also executed by the gassing head. Application of special types of piping, gas reducers, and generators...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005242
EISBN: 978-1-62708-187-0
... F G H … G 260 500 F E N M …   Hot coat H M L M F G H … G 260 500 F E N M …   Hot box processes :   Furan H H L H G F H … F 230 450 P G M M (d)   Phenolic H H L M G G H … F 230 450 P G M M Steel   Oils...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005252
EISBN: 978-1-62708-187-0
... of their high hot strength, are preferred for mold construction. Subangular grains have properties that are intermediate between those of round grains and angular grains and are the most widely used for molds. Moisture Content Dry sand is necessary for the cold resin-coating process. Moisture can cause...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005354
EISBN: 978-1-62708-187-0
... nor the self-setting binders require baking or heat activation for curing. Therefore, the term nobake is used in this article with reference to both methods. The next article, “Coremaking,” describes the systems that require baking or heat activation (i.e., the hot box methods). The base binders...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006533
EISBN: 978-1-62708-207-5
... into a heated core box. The heat activates the catalyst, which causes the binder to cure. Clean silica sand of AFS 50 to 60 is used. Low acid demand is advisable. In the hot box process, the binder is an aqueous PF-UF or UF-FA resin, and the catalyst is an aqueous solution of ammonium salts, usually...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005957
EISBN: 978-1-62708-166-5
... of heat treating furnaces Table 2 Applications of heat treating furnaces Heat treating process Furnace Aging Aerodynamic heat treating furnace, bell furnace, box furnace, resistance heating furnace, cloverleaf furnace Annealing Aerodynamic heat treating furnace, bell furnace, box...
Image
Published: 01 January 2005
impression. 4—Hot trim (900 to 925 °C, or 1650 to 1700 °F) and punch out center. 5—Air cool. 6—Clean (shot blast) Processing conditions Blank preparation Cold sawing Stock size 90 mm (3 1 2 in.) in diameter Blank weight 3.25 kg (7 lb, 3 oz) Heating method Gas-fired, slot-front More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005187
EISBN: 978-1-62708-187-0
... All 5 Yes Unlimited …   CO 2 sand All 2 Yes Unlimited …   Cold box All 2 Yes Unlimited …   Hot box All 2 Yes Unlimited …   Shell All 3 Yes Small to medium …  Slurry processes   Plaster Nonferrous 1 Yes Unlimited Outstanding   Ceramic All 1 Yes...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009019
EISBN: 978-1-62708-187-0
... that apply to molding a pattern apply also to molding a sand core. The core must be freed from the core box by moving the box away from the core in a direction generally perpendicular to the face of the core box. Loose pieces that have been placed in the core box to assist in producing the shape of the core...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005308
EISBN: 978-1-62708-187-0
... of coremaking process used and the number of cores required. Sand cores that develop strength during the high-temperature curing of thermal-setting binders (shell hot box and warm box cores) require heat-conducting metal core boxes. (Core sand binder systems and coremaking machines are discussed in the article...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001007
EISBN: 978-1-62708-161-0
... Abstract This article describes ironmaking and steelmaking practices (melt or liquid processing, including hot metal desulfurization) and discusses the evolution of these processes and their effects on steel properties. The physical chemistry of steelmaking may appear deceptively simple...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005265
EISBN: 978-1-62708-187-0
... to approximately 20 kg (44 lb). Production volumes range from 50 castings per year to 180,000 per day. The process is widely used for investment castings, precision sand molds made of resin or cold-box bonded sands, and semipermanent molds. The markets commonly served by these processes include automotive, hand...
Book Chapter

By G.R. Speich
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001026
EISBN: 978-1-62708-161-0
... Composition, wt % C Mn Si Cr Mo V N Continuous annealing, hot-rolled gage 0.11 1.43 0.61 0.12 0.08 0.06 0.01 Continuous annealing, cold-rolled gage 0.11 1.20 0.40 … … … … Box annealing 0.12 2.10 1.40 … … … … As rolled 0.06 0.90 1.35 0.50 0.35 … … Heat...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005256
EISBN: 978-1-62708-187-0
... Abstract The Replicast process is developed to overcome the formation of lustrous carbon defects and carbon pickup observed in conventional evaporative pattern casting processes. This article provides a discussion on the pattern production, process capabilities, advantages, and limitations...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001271
EISBN: 978-1-62708-170-2
... its development. The electrodeposition process offers three main advantages over the hot-dip process: (a) higher-speed continuous strip processing; (b) better control and uniformity of coating thickness, allowing the use of thinner tin coatings; and (c) ability to plate different coating thicknesses...
Book Chapter

Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005765
EISBN: 978-1-62708-165-8
... of the necessity of heating and cooling the extra thermal mass associated with the compound and the container. It is not well suited for direct quenching or quenching in dies; it is difficult (but possible) to harden directly from the carburizing box. Extra handling and processing are required to cool down...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001011
EISBN: 978-1-62708-161-0
... these products on the basis of dimensions alone is impossible because of their interchangeability and the overlapping of sizes. Mechanical processing must also be taken into consideration when classifying these hot mill products. Generally, sheet and strip are produced as coils that are rolled in only one...