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Upward continuous casting apparatus and upward continuous casting method

a technology of upward continuous casting and upward continuous casting, which is applied in the field of upward continuous casting apparatus and upward continuous casting method, can solve the problem that the speed at which the starter is pulled up cannot be increased, and achieve the effect of quick cooling of the casting

Inactive Publication Date: 2016-03-10
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides an upward continuous casting apparatus and method that can increase the speed at which the starter is pulled up without swinging the retained molten metal. This is achieved by quickly cooling the casting by placing a solid heat transfer member in contact with a surface of the casting that is formed by solidification of the molten metal. This allows for a faster and more efficient upward continuous casting process.

Problems solved by technology

Thus, in the free casting method that is described in JP 2012-61518 A, there is a possibility that the speed at which the starter is pulled up cannot be increased because the solidification rate of the retained molten metal is lowered.

Method used

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  • Upward continuous casting apparatus and upward continuous casting method
  • Upward continuous casting apparatus and upward continuous casting method
  • Upward continuous casting apparatus and upward continuous casting method

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second embodiment

[0084]FIG. 5 is an enlarged cross-sectional view that illustrates a configuration example of a free casting apparatus according to a Compared to the free casting apparatus that is shown in FIG. 1, the free casting apparatus that is shown in FIG. 5 further includes a metal wool 111 that is made of a metal that has high thermal conductivity, such as copper or a copper alloy, as a part of each solid heat transfer member 108. Because the other configurations of the free casting apparatus that is shown in FIG. 5 are the same as those of the free casting apparatus that is shown in FIG. 1, their description is omitted.

[0085]Because the free casting apparatus according to this embodiment includes a metal wool 111 as a part of each solid heat transfer member 108, the solid heat transfer members 108 and the casting M3 can be held in contact with each other more easily and the friction resistance between the solid heat transfer member 108 and the casting M3 can be reduced more easily.

[0086]In...

third embodiment

[0088]FIG. 8 is an enlarged cross-sectional view that illustrates a configuration example of a free casting apparatus according to a Compared to the free casting apparatus that is shown in FIG. 1, the free casting apparatus that is shown in FIG. 8 includes solid heat transfer members 108a in place of the solid heat transfer members 108. Because the other configurations of the free casting apparatus that is shown in FIG. 8 are the same as those of the free casting apparatus that is shown in FIG. 1, their description is omitted.

[0089]Each solid heat transfer member 108a has the shape of a circular column that is rotatable in the direction in which the casting M3 is pulled up (in a vertical direction). Thus, because the solid heat transfer members 108a rotate as the casting M3 is pulled up, the friction resistance between the solid heat transfer members 108a and the casting M3 can be further reduced.

[0090]The free casting apparatus according to this embodiment may further include a co...

fourth embodiment

[0091]FIG. 11 is an enlarged cross-sectional view that illustrates a configuration example of a free casting apparatus according to a Compared to the free casting apparatus that is shown in FIG. 8, the free casting apparatus that is shown in FIG. 11 further includes a metal wool 111 that is made of a metal that has high thermal conductivity, such as copper or a copper alloy, as a part of each solid heat transfer member 108a. Because the other configurations of the free casting apparatus that is shown in FIG. 11 are the same as those of the free casting apparatus that is shown in FIG. 8, their description is omitted.

[0092]Because the free casting apparatus according to this embodiment includes a metal wool 111 as a part of each solid heat transfer member 108a, the solid heat transfer members 108a and the casting M3 can he held in contact with each other more easily and the friction resistance between the solid heat transfer member 108a and the casting M3 can be reduced more easily.

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Abstract

An upward continuous casting apparatus includes a molten metal retaining furnace that retains a molten metal, a draw-out part that draws out the molten metal from a melt surface of the molten metal that is retained in the molten metal retaining furnace, a shape-defining member that is located in the vicinity of the melt surface and defines a cross-sectional shape of a casting to be cast by applying an external force to a retained molten metal that has been drawn out by the draw-out part, and a solid heat transfer member that is placed to contact a surface of the casting that is formed through the shape-defining member.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to an upward continuous casting apparatus and an upward continuous casting method.[0003]2. Description of Related Art[0004]In Japanese Patent Application Publication No. 2012-61518 (JP 2012-61518 A), a free casting method is proposed by the present inventors as an epoch-making continuous casting method that does not require a mold. As shown in JP 2012-61518 A, when a starter is pulled up after it is immersed into the surface of a metal melt (molten metal) (in other words, the melt surface), the molten metal is also drawn out following the starter by the surface film or surface tension of the molten metal. Here, by drawing out the molten metal through a shape-defining member that is located in the vicinity of the melt surface and cooling the molten metal, a casting with a desired cross-sectional shape can be cast continuously.[0005]In an ordinary continuous casting method, not only the cross...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B22D11/14B22D11/041B22D11/124
CPCB22D11/145B22D11/041B22D11/1243B22D11/1245
Inventor KUSAKA, YUSEISUGIURA, NAOAKI
Owner TOYOTA JIDOSHA KK