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Vacuum melting and casting device

A vacuum melting and melting furnace technology, applied in lighting and heating equipment, furnace components, furnaces, etc., can solve the problem that the magnetic properties of sintered magnets cannot be obtained, and achieve the effect of changing the cooling speed

Inactive Publication Date: 2016-11-09
ULVAC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, once the cooling rate is different as described above, the solidification state of the rare earth component changes, and as a result, the desired magnetic properties cannot be obtained when the sintered magnet is produced.

Method used

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  • Vacuum melting and casting device
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  • Vacuum melting and casting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Embodiments of the vacuum melting casting apparatus of the present invention will be described below with reference to the drawings. Hereinafter, terms indicating directions such as up, down, left, and right are preceded by figure 1 as the benchmark.

[0021] refer to figure 1 , CM is a vacuum melting casting device according to an embodiment of the present invention, and the vacuum melting casting device CM includes a closed container (vacuum chamber) 1 connected with a vacuum exhaust pipe 11 from a vacuum pump outside the figure. The airtight container 1 is composed of a vertical cylindrical main container part 1a and a horizontal cylindrical sub-tank part 1b connected to the lower part of the main container part 1a. An openable and closable lid 12 is provided on the upper end of the main container portion 1a. In addition, the melting furnace 2, the tundish 3, and the cooling roll 4 are accommodated in the main container part 1a, and the cooling drum 5 and the reco...

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PUM

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Abstract

Provided is a vacuum melting and casting device the size of which can be reduced, and with which secondary cooling of a casting can be performed in a substantially uniform manner. A melting furnace (2), a cooling roll (4) that forms a casting by performing a primary cooling on the molten metal discharged from the melting furnace, and a rotatable cooling drum (5) that receives the casting formed by the cooling roll and performs a secondary cooling, are provided inside a sealed container (1). The cooling drum is equipped with: a tubular member (51) that is longer in one direction, and has a receiving opening (52), which is open on one side and receives the casting, and a discharge opening (53), which is open on the other side and discharges the secondarily cooled casting; and transport means (54, 55) that transport the casting from the receiving opening to the discharge opening in response to the rotation of the tubular member.

Description

technical field [0001] The invention relates to a vacuum melting casting device which melts metal materials and forms cast products by strip continuous casting. Background technique [0002] Such a vacuum melting casting apparatus is known, for example, in Patent Document 1. The product has a melting furnace in a closed container connected with a vacuum exhaust pipe and a gas introduction pipe, a cooling roller for forming a cast product by performing strip continuous casting of molten metal melted in the melting furnace and cooling it once, and receiving a cooling device A freely rotatable cooling drum that rolls formed cast products and performs secondary cooling. The cooling drum is composed of a bottomed cylindrical member housed in a closed container in a horizontal state, and a cooling water jacket is provided on the outer peripheral surface of the cooling drum. The closed end of the bottom side of the cooling drum is set so that the rotating shaft protrudes outward ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/06
CPCB22D11/001B22D11/0611B22D11/0628B22D11/064B22D11/068B22D11/0697B22D11/113B22D11/12B22D11/124B22D11/1284B22D11/141F27D7/06F27D2007/066
Inventor 田代成司大日向阳一日比野直树大和田贵志
Owner ULVAC INC
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