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cupola furnaces

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Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005197
EISBN: 978-1-62708-187-0
... preheated air blast recuperative hot blast systems duplex electric holders refractory lining water-cooled cupolas emission-control systems THE CUPOLA is basically a simple cylindrical shaft furnace that burns coke for fuel. The heat generated is intensified by the blowing of air through the heated...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006337
EISBN: 978-1-62708-179-5
... Abstract Various types of furnaces have been used for cast iron melting. In terms of tonnage, the primary melting methods used by iron casting facilities are cupola and induction furnaces. This article describes the operation and control principles of cupola furnace. It discusses the advantages...
Image
Published: 09 June 2014
Fig. 3 Principle sketch and final energy demands of a hot blast cupola furnace. Specific energy demands: coke, 850–950 kWh/t; gas, 20 kWh/t; electricity, 30 kWh/t; total is 900–1000 kWh/t More
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005904
EISBN: 978-1-62708-167-2
... Abstract The crucible induction furnace is growing as an alternative melting unit to the cupola furnace due to its low specific power and reduced power consumption during solid melting material. This article details the process engineering features of the crucible induction furnace...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005908
EISBN: 978-1-62708-167-2
... furnaces are widely used for the melting of iron, steel, and nonferrous metals. In cast iron foundries, cupola, induction, and also partly gas- or oil-fired rotary furnaces are in competition ( Fig. 2 ). From the aspect of production requirements, the cupola furnace has big advantages for continuous...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006329
EISBN: 978-1-62708-179-5
...” in this Volume). Cupolas and induction furnaces tend to be the types most commonly found in the gray iron foundry. The cupola was traditionally the major source of molten iron, but gradual acceptance of electric melting has reduced its dominance. Figure 2 is a typical temperature profile during melting...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003173
EISBN: 978-1-62708-199-3
..., furnace types, charging practices of metal melting methods, namely induction melting, cupola melting, arc melting, crucible melting, reaction melting, and vacuum melting, and the refractories and charging practice of reverberatory furnaces. Molten metal treatment of steels and aluminum also is discussed...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005294
EISBN: 978-1-62708-187-0
..., and scrap iron. Various types of furnaces have been used for cast iron melting ( Fig. 3 ). In terms of tonnage, however, cupola and induction furnace melting are the primary melting methods used by iron metalcasting facilities ( Fig. 4 ). Electric induction furnaces and some resistance heating are also used...
Image
Published: 31 August 2017
Fig. 6 Tensile-strength-to-hardness relationship for (a) uninoculated and (b) inoculated gray irons melted in induction furnaces. The MacKenzie relationship was for cupola-melted gray irons. Courtesy of American Foundry Society. Source: Ref 3 , 12 More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005196
EISBN: 978-1-62708-187-0
... compared to cupola furnaces. Induction furnaces are very efficient and are made in many sizes. Induction furnaces are relatively simple, and small quantities can be melted quickly. The melting time is relatively short, allowing metal to be delivered at small, regular intervals. A wide range of metals can...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003174
EISBN: 978-1-62708-199-3
... iron, this can be accomplished with various types of melting equipment. Cupolas and induction furnaces tend to be the types most commonly found in the gray iron foundry. The cupola was traditionally the major source of molten iron, but gradual acceptance of electric melting has reduced its dominance...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005902
EISBN: 978-1-62708-167-2
... in combination with a cupola furnace, deposits are particularly prone to form around the siphons. As seen in Fig. 2 , the upper siphon area of type IRT can be dismantled to improve accessibility for mechanical cleaning of the siphon inlet into the vessel. The furnace vessel is tilted by hydraulic cylinders...
Book Chapter

Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001005
EISBN: 978-1-62708-161-0
... the previous air furnace, cupola-air furnace, or cupola-electric furnace systems. The sulfur and nitrogen contents of the charge carbon used in melting must be high enough to provide 0.07 to 0.09% S and 80 to 120 ppm N in the iron. The sulfur reduces the surface tension and improves fluidity. The nitrogen...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003170
EISBN: 978-1-62708-199-3
... composition is meant when dealing with these alloys. Ferrous Alloys Ferrous alloys include both cast irons and steels. Cast irons generally refer to iron alloys containing 3 to 4% carbon, with silicon contents of 1.5 to 2.5%. Cast irons, which are melted in induction furnaces, cupolas, and electric arc...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005186
EISBN: 978-1-62708-187-0
... (above England's Severn River) was cast and constructed at Coalbrookdale Works. 1794—John Wilkinson of England invents the first metalclad cupola furnace, using a steam engine to provide the air blast. 1797—First cast plow in the United States is invented by Charles Newbold of Sauk, N.J. 1800s...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005903
EISBN: 978-1-62708-167-2
... is a prerequisite for a good magnesium yield during treatment. One of the main advantages of inductive melting is that it is relatively easy to adjust the required sulfur contents of ≤0.02% (see Table 1 ). When melting in a cupola furnace, the sulfur content is approximately ten times higher, so...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006320
EISBN: 978-1-62708-179-5
... is attributed to the development of melting equipment capable of producing greater air draft (the box-bellows furnace) and to the abundant supply of the necessary raw materials. Evidence suggests that blast furnaces that convert raw iron ore into pig iron, which can be remelted in a cupola furnace to produce...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005195
EISBN: 978-1-62708-187-0
... on the arc melting of iron and EAF steelmaking. chemical analysis cupola furnaces deoxidation electric arc furnaces ferrous alloys oxidation steel furnace shell water-cooling system preheat and furnace scrap burners heat reduction THE MELTING OF STEEL is performed in both arc furnaces...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005326
EISBN: 978-1-62708-187-0
..., because they will retard or promote the graphitization process. Melting Practices Melting can be accomplished by batch cold melting or by duplexing. Cold melting is done in coreless or channel-type induction furnaces, electric arc furnaces, or cupola furnaces. In duplexing, the iron is melted...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006333
EISBN: 978-1-62708-179-5
... induction furnaces, electric arc furnaces, or cupola furnaces. In duplexing, the iron is melted in a cupola or electric arc furnace, and the molten metal is transferred to a coreless or channel-type induction furnace for holding and pouring. Charge materials (foundry returns, steel scrap, ferroalloys...