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Casting method for composite ingot

A technology for composite ingots and composite metal ingots, which is applied in the field of casting composite metal ingots, can solve problems such as unclean interfaces, problems with mutual bonding of layers and layers, etc., and achieves the effect of high labor intensity.

Inactive Publication Date: 2016-06-29
QINGDAO TAIWEI MACHINE TOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional way of obtaining such clad plates is to hot-roll join slabs of different alloys, thus joining them, for example by welding, and to subsequently roll them into the final product, which has the disadvantage that the interface between the slabs Often metallurgically unclean and layer to layer interbonding can be problematic

Method used

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Embodiment Construction

[0014] The method according to the invention comprises the following steps:

[0015] (a) providing an elongated solid substrate comprised of a first alloy and a melt of a second alloy;

[0016] (b) providing a casting mold, the base material and the casting mold being movable relative to each other, wherein the casting mold includes a melt supply end for supplying the casting mold with a molten second alloy and a second alloy with a molten second alloy; two alloys downcast onto the output end of the at least one outlet on the substrate;

[0017] (c) while the casting mold and the substrate are continuously moved relative to each other, the molten second alloy is cast down onto the upper surface of the substrate through the at least one outlet of the casting mold at a temperature at which, by weight, Starting from the reference point of the melting zone, the base material is locally at least partially remelted and at least partially mixed with the molten second alloy to form a...

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Abstract

The invention relates to a method and equipment for casting a composite metal ingot. The composite metal ingot comprises at least two layers formed by one or more alloys. The method comprises the steps that a long-strip-shaped solid base material formed by the first alloy and melt of the second alloy are provided; a casting crystallizer is provided, and the base material and the casting crystallizer can relatively move, wherein the casting crystallizer comprises a melt supply end for supplying the molten second alloy to the casting crystallizer and an output end for casting the molten second alloy to the base material downwards, and the output end is provided with at least one outlet; when the casting crystallizer and the base material move continuously and relatively, the molten second alloy is cast to the upper surface of the base material downwards through at least one outlet of the casting crystallizer at the temperature; at the temperature, starting from the datum point in a remelting area, part of the base material is at least partially remolten, and at least part of the base material is mixed with the molten second alloy to form an alloy liquid pond; and after remelting, the molten alloy liquid pond is continuously cooled, solidified at the position away from the datum point, and connected with the base material. Therefore, the composite ingot is formed before leaving the casting crystallizer.

Description

technical field [0001] The present invention relates to a method and an apparatus for casting a composite metal ingot comprising at least two layers each formed from one or more alloys. Background technique [0002] Metal ingots, especially aluminum ingots, have been manufactured for many years using a semi-continuous casting process known as direct chill casting or electromagnetic casting. In this process, molten metal is injected into the top of a bottomless mold and a cooling medium is applied directly to the solidifying surface of the metal as it is withdrawn. Such systems are often used to manufacture square ingots for the manufacture of rolled products such as aluminum alloy sheet. There is a large market for composite ingots consisting of at least two layers of different alloys. Such ingots are used for rolling to make clad plate for various applications such as brazing plate, aircraft plate, automotive clad plate and other uses where surface properties different fr...

Claims

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Application Information

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IPC IPC(8): B22D19/16
Inventor 秦海鹏
Owner QINGDAO TAIWEI MACHINE TOOL
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