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foundry operation

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Published: 09 June 2014
Fig. 40 (a) Induction crucible furnace in operation at Gartland Foundry; Terre Haute, Ind. and (b) the melt flows out of the crucible after tapping the furnace 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
... Melting Run The operational reliability of high-performance MF furnaces, the reproducibility of the melting run, and its place in the overall operations of the foundry have made it essential to deploy so-called melting processors ( Ref 12 ). The melting processor consists of a microcomputer...
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
.... It reviews the classification of solid fluxes depending on their use and function at the foundry operation. These include cover fluxes, drossing fluxes, cleaning fluxes, and furnace wall cleaner fluxes. The article also examines the operational practices and applications of the flux injection...
Image
Published: 01 December 2008
Fig. 13 Typical types of insulating ladles with cold disposable liners used in foundry operations. (a) Teapot. (b) Bottom pour. (c) Teapot Shank. (d) Lip-pour shank More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005350
EISBN: 978-1-62708-187-0
... The modern method is to use roof burners or side burners directed toward the metal surface. In effect, the objective is to heat the metal, not the furnace, for efficient operation. Gas- or electric-heated burners are used in reverberatory furnaces. Aluminum foundry reverberatory furnaces range from small...
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
... Abstract In high-iron-tonnage operations, the cupola remains the most efficient source of continuous high volumes of iron needed to satisfy high production foundries or the multiple casting machines of centrifugal pipe producers. This article explores successful improvement technologies...
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
... Abstract This article focuses on the construction, operation of electric arc furnaces (EAF), and their auxiliary equipment in the steel foundry industry. It provides information on the power supply of EAF and discusses the components of the EAF, including the roof, furnace shell, spout and tap...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005198
EISBN: 978-1-62708-187-0
..., such as gray iron. Crucible furnaces are popular in jobbing foundries and die casting shops because they are easy to tap and charge with another alloy. Foundry melting and handling operations with crucible equipment include furnace melting, pouring ladle equipment (either separately heated or as a ladle...
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
... and as high as 1.2% in pearlitic irons). Sulfur and phosphorus are also present in small amounts as residual impurities. A general flow chart of cast iron foundry processes (with sand molding operations, as an example) is presented in Fig. 1 for gray iron (with the additional melt treatment of magnesium...
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
... application, apart from the most important requirements listed in the section “ Aggregate Molding Materials ” in this article, several production factors also must be evaluated. These include production rate, foundry layout, operating cost, quality level, environmental impact, geometry of cast parts, and size...
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
... systems (gating and risering) to allow proper filling of the casting. Moldmaking is also an integral part of foundry operations. Other production steps may include blast cleaning, repair welding, grinding, machining, heat treatment, and inspection of castings. This article briefly reviews these production...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006535
EISBN: 978-1-62708-207-5
... of an insulated steel shell with a refractory lining. Aluminum foundry reverberatory furnaces range from small electric or gas-fired vessels of just a few tons volume to upward of 40 to 50 tons. Secondary smelters that produce ingot or supply liquid metal to foundries operate even larger furnaces. Gas...
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
... or the casting of iron in the American colonies, contributing to the start of the American Revolution. 1756—Coalbrookdale's Richard Reynolds oversees the invention of cast iron tram-road rails, replacing wooden rails. 1775—Revolutionary patriot Paul Revere, who operated a bell-and-fittings foundry...
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
... of 8.0%, which gives a reduction in final energy demand of 48 kWh/t. The theoretically investigated improvements can be realized in the design of an ICF and in the practical furnace operation in a cast iron foundry. Energy saving potentials by optimization of the design of induction crucible furnaces...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005285
EISBN: 978-1-62708-187-0
... constitute the source for the bulk of materials poured in the foundry casting industry, lithium, when present, can be one of the more significant elements encouraging dross formation in commercial operations. Even small quantities of magnesium in the cast alloy can convert the dross to a mixed oxide...
Image
Published: 30 November 2018
Fig. 27 Two type of cavities requiring different coring methods. (a) Corner radii must be sacrificed if metal cores are used. (b) Corner radii can be obtained using sand, plaster, and other expendable core materials. Casting cost is higher with option (b) due to the additional operations More
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
... of specialized cupolas such as cokeless cupola and plasma-fired cupola. Melting in iron foundries is a major application of induction furnaces. The article describes the operations of two induction furnaces: the channel induction furnace and the induction crucible furnace. It explains the teapot principle...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005905
EISBN: 978-1-62708-167-2
... and pouring operations in small-and medium-sized steel foundries, including aluminum, copper, and zinc industries. It also provides information on the process engineering benefits of melting and pouring operations. aluminum billets copper crucible furnaces electric arc furnaces induction furnaces...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006328
EISBN: 978-1-62708-179-5
...: Ref 11 The possible reversion to flake graphite in slow-cooling sections is addressed in all CGI specifications such that flake graphite is inadmissible, except in the surface rim zone or skin at the mold surface. Modern process control strategies and foundry operating routines...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003173
EISBN: 978-1-62708-199-3
... this is expensive to purchase and operate. As a result, cupolas, despite their inherent simplicity and energy efficiency, are used only by the largest foundries, which require a high tonnage of molten iron in daily operation. The advantages of using cupolas in high-tonnage foundries include the fact that molten...