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Tuesday, February 4, 2020 | History

2 edition of Proceedings of the fourth International Symposium on Electroslag Remelting Processes. found in the catalog.

Proceedings of the fourth International Symposium on Electroslag Remelting Processes.

International Symposium on Electroslag Remelting Processes Tokyo 1973.

Proceedings of the fourth International Symposium on Electroslag Remelting Processes.

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  • 32 Currently reading

Published by Iron and Steel Institute of Japan in [Tokyo] .
Written in English

    Subjects:
  • Electroslag process -- Congresses.

  • Edition Notes

    ContributionsNihon Tekkō Kyōkai.
    Classifications
    LC ClassificationsTN686.5.E4 I57 1973
    The Physical Object
    Paginationxxi, 382 p. :
    Number of Pages382
    ID Numbers
    Open LibraryOL5239353M
    LC Control Number75310457

    In the process of the invention, the crucible is arranged in the airtight chamber, the chamber is evacuated to below microns pressure, and the cooling water circulation about the crucible started. Results of experiment indicated that, by P—ESR remelting, oxygen content reduced from 0. Proceedings of the 5th Inter. Ludwig, M. After this period, power was shut off to the coil and the melt permitted to solidify in the crucible.

    The pressure in the melt chamber at pouring was 47 microns EXAMPLE 2 The same crucible described in Example 1 was placed inside a working coil inside an airtight chamber. Chang, X. The crucible is provided with means for cooling its outside surfaces, and at least the upper portion thereof is surrounded by a primary induction coil. Nonferrous Alloy, 34No. A further object of the invention is to provide a method for induction melting of reactive metals to form a molten pool thereof for the formation of castings, ingots and the like.

    Model-based variable estimates are continuously compared with measurements when available, and the residuals are used to correct the next generation of estimates. Metal may be held in the molten conditions to obtain better uniformity, to dissolve unwanted impurities, or for similar reasons once a molten pool is obtained. Hi Richard Thanks for your valuable post. An example of the use of the electro-slag refined ESR steel technique is the L30 tank gun.


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Proceedings of the fourth International Symposium on Electroslag Remelting Processes. book

The method is simpler and cheaper than ESR under vacuum but it does not allow hydrogen removal. Wang, R. This process can be started up through vacuum induction melting. I did like to know the difference and would appereciate it if you kindly let me know your opinion about this change in the material production procedure.

Fu, E. The structure and surface of ingot after optimization smelting As can be seen from Figure 7, columnar crystals distribute evenly and consistency, the surface is dense and smooth, quality is good, and there is not arc point of the ingot, after the process is optimized.

As is set forth in G. The correctness and rationality of the simulation, that the slag pool depth on the current density and temperature field is verified directly from the relationship between the stability of the current and the amount of slag.

Research on droplet formation and dripping behavior during the electroslag remelting process

The results of model application to an industrial ESR process for a 1. No insulating slag material is caused to be present in the crucible during the melting process, although certain minor impurities may of course be introduced via the charges of metal.

Finally, action mechanism of the deoxidizer during P—ESR process was discussed by analysis results and thermodynamic calculation. Jiang, Y. The particular amount of power supplied to the work coil surrounding the crucible is not critical per se, being simply that sufficient to induce in the metal charge, held by the crucible, an induced current effective to achieve complete melting of the charge.

Chen, M. Melgaard, R. They demonstrate the comprehensive capabilities of the model in predicting the behavior of the ingot and slag during the entire process and properties of the final ingot produced. The chamber is constructed in cylindrical hollow form from metal material having high heat conductivity, such as copper.

The dissociation equilibrium constant and the molar enthalpy of binding are The ESR process uses the as-cast alloy as a consumable electrode. It may also allow for the production of larger diameter VAR superalloy ingots than is possible to produce with the current generation of VAR controllers for the same reason.

The chamber will be designed to permit melting, charging, and pouring of metal to be performed from outside the airtight chamber.

Model-based variable estimates are continuously compared with measurements when available, and the residuals are used to correct the next generation of estimates. Brent AD et al Enthalpy-porosity technique for modeling convection-diffusion phase change: application to the melting of a pure metal.In steel: Electroslag remelting (ESR).

In this process, there is a slowly melting consumable electrode and a water-cooled mold for solidification, as in vacuum arc remelting, but the melting is conducted under normal atmosphere and is accomplished by a thick, superheated layer of slag on top of.

May 13,  · Kelkar K.M., O’Connell C.J. () A Computational Model of the Electroslag Remelting (ESR) Process and Its Application to an Industrial Process for a Large Diameter Superalloy Ingot.

In: Ott E. et al. (eds) Proceedings of the 9th International Symposium on Superalloy & Derivatives: Energy, Aerospace, and Industrial atlasbowling.com: Kanchan M.

Kelkar, Corey J. O’Connell. Influence of the Frequency of the Applied AC Current on the Electroslag Remelting Process Most conventional electroslag remelting (ESR) processes are operated with AC current, but the. Fourth (4th) International Symposium on Recycling of Metals and Engineered Materials: proceedings of a symposium organized by the Recycling Committee of the Extraction & Processing Division and the Light Metals Division of TMS: [Pittsburgh, Pennsylvania Donald L.

Electroslag remelting

vakia"1, the USSR's' and Canada to explain the inner workings of the electroslag remelt-ing (ESR) and casting systems. Remelting refining processes such as electroslag remelting and vacuum arc remelting [VAR] are known to have good control over the cleanness and solidification structure of steels''-k'.

Two variables have a major influence on. Apr 19,  · Method for induction melting reactive metals and alloys Fifth International Symposium on Electroslag and Other Special Melting Technologies.

as a replacement for known industrial scale melting processes based up, e.g., consumable electrode arc melting techniques. In induction melting, an electric current is induced into the metal.