JPS6057927B2 - How to manufacture multiple composite wires at the same time - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for simultaneously and efficiently manufacturing a plurality of composite wires.

Conventionally, methods for producing composite wire include a method in which a billet in which a core material and an outer layer material are integrated in advance is placed in a container and extruded, or a method in which an outer layer material placed in a container is placed on the circumference of a running core wire. There is a method of extrusion coating.

According to these methods, the core material can be elongated in the extrusion coating method, but the size of the outer layer material is limited due to the presence of a container frame in either case.

Therefore, in order to obtain a long composite wire, it is necessary to periodically stop the extruder and place the composite billet or outer layer material into a container, which limits the productivity. It is difficult to uniformly control the extrusion conditions of each individual product, resulting in unevenness in the quality of the material of the extruded product. The present invention has been made in view of the above points, and an object of the present invention is to have no limit to the length of each material and to be able to continue manufacturing indefinitely, thereby significantly improving productivity. To provide a method for simultaneously manufacturing a plurality of composite wires, which can simultaneously efficiently manufacture a plurality of extruded products that are stable and excellent in material quality.

To explain the structure of the present invention, in the method of simultaneously manufacturing multiple composite wires of the present invention, the outer layer material is an elongated transport material formed between an endless groove formed on the peripheral end surface of a movable wheel and a fixed shoe block. It is supplied to the passageway and is extruded by obtaining part or all of the extrusion pressure through the contact frictional resistance generated between the movable wheel and the groove as the movable wheel rotates in this passageway, while compared to the outer layer material. A plurality of core materials made of a hard substance each pass through a common gathering chamber with a large cross-sectional area provided at the back of the passage, and the outer layer materials and the core materials are composited and integrated in this gathering chamber. It is characterized by being extruded from each die. In the above, the outer layer material is relatively easily processed such as copper, aluminum, zinc, lead, tin, or an alloy thereof, or in some cases plastic, and the core material is generally high-strength steel or iron. etc. are selected, but
It goes without saying that depending on the purpose of use of the composite material, a softer core material or a harder core material may be selected as appropriate.

Regarding the cross-sectional area of the gathering chamber, the cross-sectional area in the direction of entry of the outer layer material is configured to be larger than at least the cross-sectional area of the passage.

Next, an embodiment of the method for manufacturing a composite wire of the present invention will be described with reference to the attached drawings. , have endless grooves 12, 12'' on their peripheral end faces, respectively.

13 is engaged with these two movable wheels 10, 1'', and materials 14, 1C to be extruded between these engaging surfaces and the endless grooves 12, 12'' of the movable wheels 10, 10'', respectively.
Long and narrow transport passageway (equivalent to container) 15, 15
This is a fixed shoe block with a

In the fixed shoe block 13, 16 and 16'' are stopper parts that close one end of the endless grooves 12 and 12'', respectively, and a common gathering chamber 17 with a large cross-sectional area is provided at the back of the passages 15 and 15''. A die 19 and a nipple 20 through which a plurality of core materials 18 are passed are arranged therein.

The cross-sectional area (X-X'' cross-sectional area) of the gathering chamber 17 is configured to be larger than at least the cross-sectional area of the passages 15, 15''. By increasing the cross-sectional area of the collection chamber 17 in this way, the material 14 to be extruded can be sufficiently stored in the collection chamber 17.
14'' absorbs, by its viscosity, changes in extrusion pressure that occur due to changes in frictional force within the passages 15 and 15'', respectively. Therefore, the die portion or the adhesive portion between the core material 18 and the material 14, 1C is not affected by such pressure changes, and as a result, an extruded product with stable adhesive strength can be obtained.

Here, the operation of this extruder will be explained: - Core material 1
8 is a steel wire, and the outer layer material 14, 14'' to be extruded is an aluminum rod.The movable wheels 10, 1'' are rotated in the direction of the arrow, respectively, and the passages 15, 14'' are rotated.
When aluminum material 14,14'' is supplied to 15'',
These aluminum materials 14 and 1C are respectively movable wheels 1
With the rotation of the movable wheel 10, 1'', the contact friction resistance generated between the movable wheel 10, 1'' and the endless grooves 12, 12'' obtains part or all of the extrusion pressure and extrudes the stopper. From the point where it hits the parts 16, 16', it bends sideways and reaches a collection chamber 17 with a large cross-sectional area.

In order to effectively obtain contact friction resistance, endless grooves 1
The inner surface of 2.12″ is made rough to increase the coefficient of friction.
On the other hand, it is preferable to make the passage surfaces of the shoe blocks 13, 13'' smooth.
4 and 14" are joined, each guide 19 and nipple 2
The aluminum-coated steel wires 18 are extruded and coated from both sides with stable pressure on the 18 circumferences of the steel core passing through the gap, and after being integrated into a composite body, extrusion molding is performed through a die 19 to form a predetermined aluminum-coated steel wire 2.
Get 1. Each aluminum-coated steel wire 21 is drawn off with a predetermined forward tension by adjusting the extrusion speed. Although it is possible to use a one-wheel system for such an extruder, using a two-wheel system as in this example requires less power for each movable wheel, and the extrusion of the coating material on the periphery of the core material is reduced. Since the pressure is applied symmetrically from both sides, the pressure is balanced as a whole, which is very advantageous in terms of equipment and especially for uniformly improving the material quality of a large number of extruded products.

As can be seen from the above examples, according to the method of simultaneously manufacturing multiple composite wires of the present invention, there is no limit to the length of the wire material, and manufacturing can be continued indefinitely. Not only can productivity be significantly improved, but also the disadvantages in terms of material quality due to the conventional press joining of raw materials can be eliminated, and a plurality of extruded products with stable material quality can be obtained at the same time.

In addition, since the method of the present invention is a method of providing a common gathering chamber 17 with a large cross-sectional area at the back of the passage, the extrusion pressure is very stable, so that the adhesive strength of each is uniform and stable. It is possible to efficiently manufacture composite wires at the same time, and its industrial value is extremely large.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of an embodiment of the method for simultaneously manufacturing a plurality of composite wires according to the present invention, and Fig. 2 is a sectional view taken along line A-A'' in Fig. 1. 10, 10...Moveable Wheel, 11,1"・Drive shaft, 12,12"...Endless groove, 13...Fixed shoe block, 14,1C...Aluminum material, 15,15"...Transportation passage, 16 ,16″・
・Stopper part, 17... Gathering room, 18...
...Steel core material, 19...Dice, 20...
・Nipple, 21...Aluminum coated steel wire.

Claims (1)

[Claims] 1. A method for manufacturing multiple composite wires at the same time, in which the outer layer material is supplied to an elongated transport passage formed between an endless groove formed on the peripheral end surface of a movable wheel and a fixed shoe block, and the outer layer material is The inner layer is extruded by obtaining part or all of the extrusion pressure from the contact friction resistance generated between the inner layer and the groove as the movable wheel rotates, while the outer layer material is made of a material that is relatively hard. Each of the core materials passes through a common gathering chamber with a large cross-sectional area provided at the back of the passage, and the outer layer material and the core material are combined and integrated in this gathering chamber, and then the composite wire is extruded. A method for simultaneously manufacturing a plurality of composite wires, characterized in that the wires are extruded through a plurality of dies provided according to the number of wires.