JPH0270356A - Method for continuously casting alloy formed body - Google Patents

Abstract

PURPOSE:To produce alloy casting wire, hoop and pipe without varying the outer dia. and quality by supplying plural casting raw material having different kinds of metals into a melting vessel, melting the alloy and forming the long alloy body having directional solidified structure through a heating mold for continuous casting communicating with the vessel. CONSTITUTION:The melting vessel composing of a crucible 5 in a heating furnace 2 is communicated with the heating mold 7 for continuous casting. The casting raw material wires 1a, 1b, 1c having plural different kinds of metals are supplied into this vessel to melt the alloy. Then, the casting wire 8 as the long alloy formed body having directionally solidified structure, is formed through the mold 7. By this method, the alloy casting wire, hoop and pipe without varying the outer dia. and quality, can be produced.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention continuously supplies a plurality of dissimilar metal wires as melting raw materials, melts the alloy, and produces a unidirectional wire with excellent workability using a heated mold. The present invention relates to a method for continuously casting long linear, band-shaped, or tubular shaped bodies of alloys having a solidified structure.

[Conventional technology]

Conventionally, in order to continuously cast a linear or strip-shaped alloy molded body using a heated mold, it was necessary to supply appropriately mixed alloy casting raw materials into a melting bath in a batch manner, and then attach them to the melting bath. Wire and band-shaped alloy molded bodies were pulled out through the mold, and cooling water was directly sprayed onto these alloy molded bodies to cool them and make them into products.

[Problem that the invention seeks to solve]

When making wire from soft pure metals such as copper or aluminum using the heated mold continuous casting method, these metal wires are often fed into a melting bath as raw materials, melted, and passed through a mold to form new cast wires with arbitrary cross-sectional shapes. A method is being used to obtain the In heated mold continuous casting, in order to keep the outer diameter of the wire constant and prevent the molten metal from breaking out from the mold outlet, it is necessary that the pressure of the molten metal in the mold be as low as possible and not fluctuate. .

This is because it is more suitable for keeping the level of the melting tank constant than feeding raw materials in a batch manner and producing wires with a -like outer diameter.

However, in the case of alloys that are difficult to process, it is extremely difficult to process the raw material into a long wire in advance and supply it. Therefore, in the heating mold type continuous casting of alloys, a batch type casting raw material supply method is exclusively used. This method has the disadvantage that special control equipment is required to keep the scene level constant, and that the process must be interrupted each time the melting bath is fed with casting material.

[Means to solve the problem]

In order to avoid the above-mentioned drawbacks, the present invention continuously supplies a plurality of metal wires made of elements constituting the alloy as alloy raw materials to a melting bath, and while melting the alloy in the melting bath,
The object of the present invention is to provide a method capable of manufacturing a long alloy molded body having an arbitrary cross-sectional shape through a mold.

[Effect]

In this way, the casting raw material is continuously supplied in the form of multiple metal wires of the alloy constituents, and while the alloy is melted, it is passed through a heated mold and forcedly cooled outside the mold, thereby forming the alloy into the desired shape. Can move around the body.

In particular, it enables continuous casting of difficult-to-work alloys by supplying raw materials in a linear manner, which has been considered impossible in the past.

〔Example〕

Embodiments of the present invention will be described in detail with reference to the drawings. 1st
The figure shows a continuous casting device used in the method for manufacturing a pot casting wire according to the present invention. Casting raw materials ■a to ■C are pure metals consisting of the constituent components of the alloy to be cast, respectively, and are heated and melted by the furnace heater ■ of the heating furnace ■, alloyed, and become molten metal ■, and this molten metal ■ becomes a melting bath, that is, a crucible ■ The cast wire ■ passes through the heating mold ■ heated by the mold heater ■ attached to the mold heater ■, and this cast wire ■ is directly cooled by spraying cooling water ■, and is drawn out by the pinch roll [phase] while passing through the winding machine ■ can be wrapped around.

The pure metal wires of the casting raw materials ■a to ■C are melted in the crucible ■ to form an alloy. In order to obtain an alloy wire with a desired composition, the wire diameter or feeding rate of each of casting raw material wires a to c is controlled so as to have the desired alloy composition.

0 is a gas blowing pipe, and if necessary, inert gas such as A is blown into the molten alloy so that it has a uniform composition, or an electromagnetic stirring device used for boat fishing is used. The purpose can be achieved by adding .

〔Effect of the invention〕

According to the present invention, it is possible to always keep the level of the molten metal constant and to produce good alloy cast wire, strip-shaped, and tubular alloy molded bodies with no change in outer diameter or quality.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of an apparatus used in the continuous casting method for alloy casting wire according to the present invention. ■a, ■b5■C casting raw metal wire■ Heating furnace ■Furnace heater■ Molten metal■ Crucible ■
Mold heater ■ Heating mold ■ Casting wire ■ Cooling water [Phase] Vinci roll ■ Winding II O gas blowing pipe - + (18

Claims (1)

[Claims] A casting raw material consisting of multiple dissimilar metal wires is supplied to a melting bath connected to a heating mold for continuous casting, and while melting an alloy,
A continuous casting method for an alloy molded body, characterized in that a long alloy molded body having a unidirectionally solidified structure is obtained through the mold.