Method and apparatus for preheating and distributing ingots

a technology of ingot melting and preheating, which is applied in the field of magnesium die casting industry, can solve the problems of difficult to ensure the continuous supply of die casting machinery, the inability to transfer semi-liquid die casting technology to mass production, and the inability to meet the needs of production, so as to achieve safe and energy-saving effects

Inactive Publication Date: 2005-01-20
BOWMAN DAVID
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  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0006] It is a first object of the present invention to provide a safe and energ...

Problems solved by technology

Generally, transferring semiliquid die casting technology to mass production present more than a few difficulties.
Most importantly, there is the difficulty in ensuring that the die casting machinery has a continuous supply of ingots within a suitable temperature range.
Traditionally, furnaces for melting ingots tend to be extremely inefficient especially when the furnace is designed to handle ingots of various sizes.
As a result, excessive heat up energy is required to bring the ingots to the needed homogenizing temperature thus decreasing the overall performance of the furnace.
Not only are furnaces ...

Method used

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  • Method and apparatus for preheating and distributing ingots
  • Method and apparatus for preheating and distributing ingots

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Embodiment Construction

[0020] Referring to FIGS. 1 and 2 an apparatus 10 for preheating and distributing magnesium ingots used in magnesium die casting is securely positioned atop a melting furnace 12 whereby the heat generated by the molten bath within said furnace 12 is used to preheat the ingots 14, to a suitable temperature range of between 150-350° C., located within the apparatus 10 prior to charging or distributing into said furnace 12.

[0021] The apparatus 10 is comprised of a housing 16 which is characterized by its ejector area 28, ceiling 18, floor 20, side walls 22 extending from floor 20 to ceiling 18 for defining a chamber which is divided by divider plate 25 which runs parallel to side walls 22 into at least a storage area 24 and a heating area 26.

[0022] The floor 20 is partially opened on the heating area 26 side in order to allow for the heat generated by the melting furnace 12 easier access to the ingots. The ceiling 18 may be adapted with an opening to the storage area 24 for loading t...

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Abstract

A method and apparatus for preheating and distributing magnesium ingots used in magnesium die casting wherein the heating efficiency is improved thus reducing the energy required to heat the ingots to a temperature varying between 150° C.-350° C. prior to charging into a molten magnesium bath. A housing comprising a ceiling, a floor, side walls extending from the floor to the ceiling for defining a chamber which is divided into at least a storage area and a heating area, and means for moving the ingots from one side to another as well as out to the molten magnesium bath are provided. The apparatus of the invention is adapted to be securely positioned directly atop of a melting furnace whereby the heat generated by said furnace is used to preheat the ingots located within the apparatus prior to charging.

Description

FIELD OF THE INVENTION [0001] The present invention relates generally to the magnesium die casting industry and, more specifically, to methods and apparatus for ultimately improving the overall energy-efficiency of the magnesium die casting process. BACKGROUND OF THE INVENTION [0002] Generally, transferring semiliquid die casting technology to mass production present more than a few difficulties. Most importantly, there is the difficulty in ensuring that the die casting machinery has a continuous supply of ingots within a suitable temperature range. Such a continuous supply within the suitable temperature range is necessary in order to prevent problems linked to the quality of the die casting. Temperatures and minimum temperature variations are critical as well as other process variable parameters such as metal level in the molten bath and consistent metal pour to meet the unique properties of a magnesium melt operation. [0003] Traditionally, furnaces for melting ingots tend to be e...

Claims

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Application Information

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IPC IPC(8): B22D17/28B22D21/00B22D21/04
CPCB22D21/007B22D17/28
Inventor BOWMAN, DAVID
Owner BOWMAN DAVID
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