JPS5944934B2 - Metal composite manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for continuously manufacturing metal composites.

Conventionally, as shown in FIG. 1, for example, a wheel 1 having an outer circumferential groove 3 and rotatably supported on a shaft 2, and a wheel 1 fixed to engage with this wheel 1 and extending a part of the outer circumferential groove in the longitudinal direction. The shoe 4 has a protrusion 5 that fits and slides into the outer circumferential groove 3, and an orifice 6 that connects with the outer circumferential groove 3 in front of the protrusion 5. 1 in the direction of the arrow and supplying the raw material 7 to the outer circumferential groove 3, the raw material 7 is moved forward to the front surface of the protrusion 5. Therefore, pressure is generated on the raw material in the outer circumferential groove 3, causing it to become plastic. There is known an apparatus for continuously extruding metal, in which a raw material at the tip is extruded from an orifice 6.

The present invention is based on the metal extrusion molding apparatus described above,
This has been improved to create a device that can continuously manufacture metal composite materials.

The following will be explained along with examples.

Reference numeral 1 denotes a rotatably supported wheel 2, and this wheel 1 has three outer peripheral grooves 3.3', 3''.

Reference numeral 4 denotes a shoe which is fixed so as to engage with the wheel 1 and which covers a part of the longitudinal direction of the outer circumferential groove 3.3', 3'' of the wheel and forms a passage with the bottom and side surfaces of the outer circumferential groove; 3
Outer circumferential groove of the strip 3. 3′, 3″ protrusion 5 that fits and slides;
5', 5'' and a merging chamber 8.

The outer circumferential groove 3.3', 3'' and the merging chamber 8 are connected to the communication path 1.
0,10', 10''.

This merging chamber 8 has a constricted shape at the top so as to maintain a high pressure to keep the coating material in a plastic state, and is provided with an extrusion port 9 at the top thereof.

The structure of the present invention is as described above, and its operation will be explained next.

First, a core material 7 made of a hard material such as copper is inserted into the central groove 3' of the outer peripheral groove of the wheel 1, and the core material 7 is inserted into the grooves 3' on both sides.
Insert a soft material, such as aluminum, as a covering material into ``, and rotate the wheel 1 in the direction of the arrow.
Each raw material is moved forward until it hits the protrusion 5.

However, if the wheel 1 continues to rotate further, each raw material will try to be pushed deeper and deeper due to contact friction with the bottom and side surfaces of the outer circumferential groove, generating high pressure (5000 to 10
000 atm).

The raw metal at the tip becomes plastic due to this pressure, and is pushed out through the communicating paths i o , io', and 1o'' and enters the merging chamber 8 .

Then, around the hard material extruded from the central communicating path 10', the soft materials extruded from the communicating paths 10.
It is extruded as a composite material.

Here, to describe the effective features of the present invention, a higher pressure necessary for extruding the hard core material is generated in the central outer circumferential groove for the core material, and a softer material is generated in the outer circumferential grooves on both sides. The high pressure required for extrusion is generated.

Then, since the soft material is extruded again at the extrusion port 9, the pressure in the merging chamber 8 becomes equal to the soft material extrusion pressure.

Therefore, the soft material extruded through the central communication path 10' is released from the plastic pressure in the merging chamber 8 and becomes suitable as a core material.

This extrusion pressure can be adjusted by changing the cross-sectional area ratio of the outer circumferential groove and the communicating path, and by changing the length of the shoe, that is, the length of the passage formed by the outer circumferential groove and the shoe.

Therefore, each of these elements is arbitrarily designed depending on the cross-sectional shape of the composite material to be manufactured, the properties of the metal material, etc.

In addition, in this example, a wheel provided with three outer circumferential grooves has been described, but the number of grooves may be any number.
It is not limited to Article 3.

In short, it is sufficient to have a groove for the core material and a groove for the covering material.

Also, for example, copper has been illustrated as a hard material, but soft and flexible here mean that there is only a difference in hardness between the core material and the coating material, and if a core material harder than copper is used, the copper can be coated. It can also be used as a material.

FIG. 4 shows another embodiment, and shows a cross section of the communication passage of the shoe, which has a plurality of communication passages for the core material, and by configuring it in this way, it is possible to create a multi-core composite. It is possible to manufacture materials.

As described above, the apparatus of the present invention is capable of manufacturing metal composite materials, such as industrial products made of copper as a core material and aluminum as a coating material, continuously and at high speed using simple raw materials by cold extrusion. It has extremely useful effects industrially.

[Brief explanation of the drawing]

FIG. 1 shows a conventional metal extrusion molding apparatus, FIG. 2 shows a metal extrusion molding apparatus according to the present invention, and FIG. 3 shows a cross section taken along line AA in FIG. FIG. 4 shows a cross section of a communicating path in another embodiment. DESCRIPTION OF SYMBOLS 1...Wheel 3, 3t, 3//...Outer circumferential groove, 4...Shoe, 8...Merge chamber, 9...Extrusion port, 10.10'. 10″...Communication path.

Claims (1)

[Claims] 1. A wheel that is rotatably supported and has a plurality of outer circumferential grooves;
The shoe has a plurality of protrusions that fit and slide into each outer circumferential groove, and a plurality of communicating passages that communicate with each outer circumferential groove in front of the protrusions. , a merging chamber in which these communication passages open, and a part of the outer circumferential groove is used as a groove for a core material, and the other part is used as a groove for a covering material.