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Equipment for continuous or semi-continuous casting of metals with improved metal filling equipment

A kind of equipment and metal technology, applied in the field of continuous or semi-continuous casting equipment, which can solve problems such as difficult control

Active Publication Date: 2019-09-24
NORSK HYDRO ASA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the known solution of EP 1648635 has proven to be difficult to control during the start-up of the casting operation, and the equipment requires an additional intermediate metal reservoir, as described below

Method used

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  • Equipment for continuous or semi-continuous casting of metals with improved metal filling equipment
  • Equipment for continuous or semi-continuous casting of metals with improved metal filling equipment
  • Equipment for continuous or semi-continuous casting of metals with improved metal filling equipment

Examples

Experimental program
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Embodiment Construction

[0017] As mentioned above, Figure 1-3 An example of a known casting apparatus for casting extruded ingots is shown as shown in the applicant's own EP Patent No. 1648635 on which the present invention is based. It is simple in that it only consists of six chills or dies 3 with metal inlets 4 . Such equipment can include many more chills, up to hundreds of them, depending on their diameter, and can have a capacity to cast tens of tons of metal per hour.

[0018] Overall, except for casting molds ( figure 1 In addition to not shown in ), the equipment also includes a frame structure 2, which has: an insulated launder system 6 for supplying metal from a metal reservoir (holding furnace or similar); and a corresponding insulated distribution chamber (metal manifold Tubes) 5 for distributing the metal to the individual cold dies. Above the dispensing chamber 5, the device is provided with a removable cover or cover 7 designed to seal the dispensing chamber from the environment. ...

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PUM

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Abstract

An apparatus (1) for continuous or semi-continuous low-pressure casting of metals, in particular for direct cooling (DC) casting of rods, rods or blanks (25) of elongated objects such as aluminium. The apparatus comprises a frame structure with at least one chill or die having a die cavity provided with an inlet (4) opening upwards and an outlet with cooling means. The inlet of the mold is connected to a distribution chamber (5) to receive liquid metal from a metal storage such as a holding furnace through a metal supply channel or launder (6). A flexible runner section (28) is provided between the runner (6) and the metal distribution chamber (5) so that the frame structure with the mold (3) and distribution chamber can be raised and lowered to completely fill the mold with metal. The metal level in each respective mold can then be controlled relative to the metal level in the launder, thereby controlling the low pressure casting.

Description

technical field [0001] The present invention relates to an apparatus for continuous or semi-continuous casting of metals, in particular for direct chill (DC) casting of aluminium, comprising a mold or chill with a cavity, the mold or The cold die is provided with an inlet connected to a metal reservoir and an outlet with means for cooling the metal in order to cast through the outlet an article in the form of an elongated wire, rod or rod. Background technique [0002] Plants of the above-mentioned type are well known for casting alloyed or unalloyed aluminum metal, which is further lowered to the production line for processing, for example for remelting or extrusion purposes. [0003] The main challenge of this type of prior art casting equipment is to achieve a smooth surface without segregation on the finished casting. This is especially important for products whose surface is not removed prior to processing. In filing own EP Patent No. 1648635, a method and apparatus f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/103B22D11/18B22D35/04
CPCB22D7/005B22D9/003B22D11/18B22D35/04B22D11/103B22D11/003B22D11/049B22D18/04B22D11/16
Inventor G·A·罗恩D·A·斯约尔塞特A·哈康森R·勒达尔J·E·哈夫萨斯U·H·通达尔
Owner NORSK HYDRO ASA