JPS58125315A - Arranging plate of core material in die device for production of composite extrudate - Google Patents

Abstract

PURPOSE:To make positioning of core materials accurate and sure by forming metal flow guides which equalize the pressure balance that the extruded metal flowing so as to enclose the core materials applies upon the core materials to an arranging plate for the core materials. CONSTITUTION:Recessed grooves, that is, metal flow guides 20 are formed on both sides of passage holes 10A for core materials located along the circumference of an arranging plate 10 for core materials. The guides 20 are set at such depth at which the extruded metal is conducted on the side inner than the radial position of the core materials passing through the holes 10A, and are so selected as to act uniform pressure from the entire circumferential direction thereof in the stage of enclosing the core materials. Since the core materials are enclosed in the extruded metal by the uniform pressure from the entire circumferential direction, the core materials are melt stuck while said materials are drawn linearly toward the extruding direction from the predetermined positions in the holes 10A.

Description

[Detailed description of the invention] Non-invention uses metal materials such as steel wire as the core material, AL, Cu.

The present invention relates to a core material arrangement board of a die device for manufacturing a composite extruded material in which a core material is wrapped with a metal material that can be extruded, such as Zn or PB.

As shown in Fig. 1, as an apparatus for producing this type of composite extruded material, a passage 2 is formed in a mandrel l to serve as a core material. AL, Cu, Zn, which can be extruded through the boat hole 3 outside the mandrel 1, while determining the position of the core material by guiding it through the hole 10A of IO.
The present applicant has developed an extrusion die device that extrudes a metal material such as Pb, and causes the extruded metal to wrap around a core material and be extruded and welded together with the core material. In the illustrated die device, the outer shape of the extruded product is the bearing surface 4 of the die 4.
A and the inner diameter is controlled by the second mandrel 5 to produce a cylindrical product. However, by changing these restrictive shapes, this die configuration offers the advantage of being able to produce a variety of composite extrusions. In extrusion processing using such a die configuration, even if the core material is positioned using the hole 10A of the core material arrangement board 10, depending on the arrangement of the core material and the overall cross-sectional shape of the product, the extrusion may flow around the core material from the outside. The problem is that the final position of the core material is misaligned due to the metal.

An object of the present invention is to provide a core material arrangement board that prevents such misalignment.

That is, the present invention is characterized in that a metal flow guide is formed on the core material arrangement board to balance the pressure balance exerted on the core material by the extruded metal flowing so as to surround the core material.

An example will be explained below, as shown in FIG.
In the core material arrangement board 10 of FIG. 1, concave grooves or metal flow guides 20 are formed corresponding to both sides of the core material passage hole 10A located along the circumference. This metal flow guide 20 is set to a depth that allows the extruded metal to be guided inward from the radial position of the core material passing through the hole 10A, and when wrapping the core material, it is set to a depth that allows the extruded metal to be guided almost evenly from the entire circumference direction. selected to exert pressure.

By forming such a metal flow guide, the core material is wrapped in the extruded metal from the entire circumferential direction with almost uniform pressure, so that it is welded while being pulled out linearly from the position determined by the hole 10A in the extrusion direction. It becomes possible to hold the predetermined position.

The shape and dimensions of the metal flow guide should be appropriately determined depending on the shape and dimensions of the extruded product. For example, as shown in FIG.
In the die configuration for extruding the stamped mountain shape material 50,
As shown in FIG. 4, the mandrel 70 is formed with a metal flow guide 80 corresponding to the H-shaped recessed space. Of course, it is also possible to form metal flow guides as shown in FIG. 2 on both sides of the lateral core material passage holes 70A, if necessary. By forming the metal flow guide 80 in this manner, it is possible to easily and accurately manufacture the H-shaped composite extrusion shown in FIG.

As described above, the present invention is characterized in that a metal flow guide is formed on the core material arrangement board, thereby achieving the effect of accurately and reliably positioning the core material, which allows for substantially various The effect of making it possible to manufacture composite extruded materials of various shapes is extremely large.

Note that the shape and dimensions of the metal flow guide are appropriately selected depending on the product shape, etc., and are not particularly limited.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view schematically showing the configuration of a die for manufacturing a composite extruded material to which the present invention is applied. FIG. 2 is a partial perspective view of the core arrangement board shown in FIG. 1 having a metal flow guide according to the present invention. FIG. 3 is a sectional view showing an example of a composite extruded material. FIG. 4 is a partial perspective view of a core material arrangement board according to the present invention for making the structure shown in FIG. 1...-Self......1 Fight-Manby Mandrel 2...Passage 3
・・・・・・・・・・・・・・・・・・Boat hole 4・・・・・・・・・・・・・・・・・・Bearing 5...・・・・・・・・・・・・・・・・・・
・Second mandrel 10.70... Core material arrangement board 10A, 70A... Hole 20.80... Metal flow guide 50
・・・・・・・・・・・・・・・Composite extrusion material 60
・・・・・・・・・・・・・・・・・・ Core material 67-

Claims (1)

[Claims] In a die device for extruding a composite extruded material having a core material of different metals, it is attached to the tip of a mandrel that has a passage for guiding the core material, and has a hole for positioning and feeding out the core material. 1. A die apparatus for manufacturing composite extruded material, comprising: an arrangement plate, and a die provided with a metal flow guide for balancing the pressure caused by the flow of extruded metal against the core material supplied through the hole.