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induction skull melting furnaces

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By G. Keough
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005203
EISBN: 978-1-62708-187-0
... Abstract Skull melting refers to the use of furnaces with water-cooled crucibles that freeze a solid “skull” of material on the crucible wall. This article describes the basic components, operating pressure, advantages, and applications of vacuum arc and induction skull melting furnaces...
Image
Published: 09 June 2014
Fig. 2 Induction furnace with cold crucible (IFCC) for skull melting. Source: Ref 2 More
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005907
EISBN: 978-1-62708-167-2
... Abstract This article provides an overview of the models of two induction heating devices, namely, induction crucible furnace (ICF) and induction furnace with slits, or segmented and water-cooled induction furnace with cold crucible (IFCC). These devices are used for melting with skull...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005895
EISBN: 978-1-62708-167-2
... such as induction crucible furnaces, channel induction furnaces, and induction furnaces with cold crucible. The article describes the advantages, applications, and fundamental principles of induction skull melting. It also provides information on the various specific application-designed induction melting...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005911
EISBN: 978-1-62708-167-2
.... Once the glass starts to become molten the conducting rod is withdrawn and the glass is directly heated by the induction coil. The exterior glass in contact with the interior furnace walls is cooled and forms a solid layer or skull. This process eliminates using melting containers that could...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005338
EISBN: 978-1-62708-187-0
.... Melting Processes Zirconium casting uses two melting methods: vacuum arc skull melting and induction melting (either vacuum or skull). Both methods are commonly used for melting reactive alloys. Vacuum arc Skull Melting Vacuum arc skull melting furnaces use consumable electrodes 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.a0005205
EISBN: 978-1-62708-187-0
... the sources of atmospheric contamination in plasma melting furnaces and their control measures. The equipment used in plasma melting furnaces are also discussed. The article provides a detailed discussion on various plasma melting processes, such as plasma consolidation, plasma arc remelting, plasma cold...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005846
EISBN: 978-1-62708-167-2
.... The article also describes the benefits of the flux controllers for induction heat treating processes such as single-shot and scanning. channel type furnaces continuous induction tube welding cooling crucible furnaces induction coils induction melting inductor crucible cold furnaces magnetic flux...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005848
EISBN: 978-1-62708-167-2
... vacuum chambers—such as induction vacuum furnaces with chambers capable of holding multiple parts for higher production volumes ( Fig. 8 ), induction vacuum melting furnaces ( Fig. 9 ), or induction skull melting furnaces—have induction coils inside the vacuum chamber. Special consideration needs...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005204
EISBN: 978-1-62708-187-0
... for electron beam and vacuum arc remelting skull melting and casting Cold hearth melting process for the feedstock refining of superalloys for vaccum induction melting and electron beam casting Fig. 2 Examples of electron beam melting and casting processes. (a) Button melting with controlled...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005898
EISBN: 978-1-62708-167-2
... the application of the basic equations and approaches formulated for electromagnetic field and melt turbulent flow for the numerical study of an induction crucible furnace. computational fluid dynamics discretization finite volume method fluid viscosity induction crucible furnaces induction melting...
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
... be seen on some aluminum melts in induction furnaces. While it may not be visible, the intense stirring is normally viewed as a factor in breaking these oxides into smaller and smaller inclusions, which may then be suspended in the melts. The need to remove these with downstream cleaning will somewhat...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003175
EISBN: 978-1-62708-199-3
...-gravity low-pressure casting, and pressure die casting. Melting and Metal Treatment Aluminum and aluminum alloys can be melted in a variety of ways. In routine use are coreless and channel induction furnaces, crucible and open-hearth reverberatory furnaces (fired by natural gas or fuel oil...
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
... and induction furnaces. The arc furnace is the primary melting method and is used by over 80% of steel foundries ( Ref 1 ). However, arc furnaces are not good holders or efficient at superheating metal, so it is not uncommon to use induction furnaces to superheat steel after the arc melters. Induction furnaces...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005255
EISBN: 978-1-62708-187-0
... and cores, detailing the binders and other materials used, as well as the formulation and control of slurries. Methods for pattern removal, mold firing, melting, casting, postcasting treatment, and inspection are explained. After presenting design recommendations for investment castings, the article...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001345
EISBN: 978-1-62708-173-3
..., temperature and time, rate and source of heating, and protection by an atmosphere or flux. The article explains the different types of brazing processes: manual torch brazing, furnace brazing, induction brazing, dip brazing, resistance brazing, infrared (quartz) brazing, exothermic brazing, electron-beam...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001050
EISBN: 978-1-62708-161-0
... is affected by the condition of the grain boundaries and, in particular, the grain-boundary carbide morphology and distribution. Vacuum induction melting offers more control over alloy composition and homogeneity than all other vacuum melting processes. The primary purification reaction occurring...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0007021
EISBN: 978-1-62708-439-0
... of furnace melting mechanisms include: Induction melting Plasma arc cold hearth Water-cooled copper induction skull melting Contactless electrode induction melting Vacuum induction melt inert gas atomization (VIGA, Fig. 3a ) can produce the highest- quality or cleanest melt...
Book Chapter

By John C. Bittence
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003222
EISBN: 978-1-62708-199-3
... of the scrap to the hostile furnace atmosphere; these methods include continuous melting for large volumes and induction melting for more modest volumes. Processing Mixed Scrap Since the early 1960s, the volume of scrap from discarded long-life-cycle products such as home construction materials...