Title:
【発明の名称】真空鋳造法とそのための装置
Document Type and Number:
Japanese Patent JPS61501014
Kind Code:
A
Abstract:
Method and apparatus for producing a fine-grain ingot are disclosed. A feedstock stick is melted to produce a series of fully molten drops which falls on the upper surface of an ingot being formed, to cover a portion thereof which is substantially less than the ingot's total upper surface. The mold is moved laterally with respect to the feedstock stick at a rate which is high enough so that the molten metal impinges upon different portions of the ingot's upper surface but which is low enough to prevent a substantial centrifugally outward flow of the metal impinging on the upper surface of the ingot. The molten metal melt rate is so selected that the impact region on the ingot's upper surface is at or below the solidus temperature of the alloy and above a temperature at which metallurgical bonding with the successive impinging metal can occur.
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Inventors:
Hunt, Chillard Dancona
Application Number:
JP50046485A
Publication Date:
May 22, 1986
Filing Date:
January 10, 1985
Export Citation:
Assignee:
Degassa Electronics Inco-Polled
International Classes:
B22D7/00; B22D7/10; B22D11/041; B22D13/02; B22D11/04; B22D21/06; B22D27/15; (IPC1-7): B22D27/15; B22D21/06; B22D11/04; B22D7/00
Attorney, Agent or Firm:
Kyozo Yuasa