JPH04200945A - Device for manufacturing multi core composite wire rod base material - Google Patents

Abstract

PURPOSE:To continuously manufacture the multi core composite wire rod base material by bundling plural pieces of element wire with the shaping means, applying the tape around the element wire with the coating means and jointing the butted end parts of the tape with the jointing means. CONSTITUTION:The element wire 1 carried out from the reel 2 is corrected with the strainer roll 3 to the straight line like, the front surface is cleaned with the pre-processing devices 4a, 4b, and supplied to the hole shaping jig 5. On the hole shaping jig 5, the element wire 1 is arranged in the state being filled closely in the prescribed array and introduced to the forming deice 6. On the forming device 6, the tape 10 is formed around the element wire 1 to a pipe like during passing successively through the caliber roll 7, the butted end part of the lateral direction of the tape 10 is positioned at the upper end. The butted end parts of the tape 10 are welded with the seam welder 8, the multi core metallic composite wire base material 15 which is filled closely with a large number of wires in the pipe obtained by forming the tape 10 to the cylindrical shape, is manufactured.

Description

[Detailed Description of the Invention] Industrial Application Field] The present invention provides a multicore composite wire preform that enables industrial production of a multicore composite wire preform used in the production of shape memory alloys or superconducting wires. This invention relates to manufacturing equipment.

[Prior Art] As a method for producing superconducting wires and shape memory alloy wires, wires made of the constituent components thereof are bundled in a desired blending ratio, and this multicore metal composite wire base material is drawn to a predetermined diameter. , there are those that undergo heat treatment at a predetermined temperature. In particular, the shape memory alloy is Cu
-Ni-AI! Many of the alloys are difficult to process, such as alloys, and the final alloy cannot be manufactured due to difficulty in processing.
In this way, it is possible to manufacture wires by processing them in the form of strands and then heat-treating them to make them homogenized.

By the way, there is no conventional method for industrially mass-producing this multi-core metal wire motherboard, and it is manufactured by the extremely complicated work of manually bundling and arranging the wires.

[Problem to be solved by the invention] A multicore metal composite wire base material used as a base material for the production of superconducting wires and shape memory alloy wires, as in the case of two series, is
Since it is manufactured by hand, the manufacturing cost of the multicore metal composite wire base material H is high, and it is not possible to supply a multicore metal composite wire base material of stable quality. Therefore, the price of the finished shape memory alloy wire increases and the quality deteriorates.

In particular, Cu-Ni-A, & thread shape memory alloy wires are attracting attention for expanding the use of shape memory alloys because the cost per wire is lower than that of Ti-Ni shape memory alloy wires. However, the high manufacturing cost of the multicore metal composite wire 19 used in its manufacture cancels out the advantage of the low material cost of the cu-Ni-A shape memory alloy wire.

The present invention has been made in view of such problems, and includes:
The purpose of L1 is to provide a method for manufacturing a multifilamentary composite wire preform that can produce a multifilamentary composite wire preform in large quantities, stably, and with high efficiency, and that can reduce the manufacturing cost.

[Means for Solving the Problems] A method for manufacturing a multicore composite wire base material according to the first invention of the present application includes inserting a plurality of metal or alloy strands and applying a predetermined tension at the exit thereof. It is characterized by having a shaping means for shaping into a predetermined arrangement, a covering means for covering the periphery of the strands coming out of the shaping means with a metal or alloy tape, and a joining means for joining the butted ends of the tape. shall be.

Further, the apparatus for manufacturing a multifilamentary composite wire preform according to the second invention of the present application includes means for applying a predetermined tension to hold a plurality of strands of metal or alloy, and a means for holding a plurality of strands of metal or alloy by applying a predetermined tension, a means for vertically attaching a metal or alloy tape; a forming means for forming the tape into a pipe shape around the bundle of strands; and a joining means for joining the butted ends of the tape; The means and the joining means are installed on a common carriage, and the carriage moves along the bundle of strands.

[Operation] In the first invention of the present application, the shaping means bundles a plurality of wires, and the covering means covers the periphery of the bundle of wires with a tape. Then, the mating ends of the tape are joined by a joining means.

Thereby, it is possible to continuously manufacture a multifilamentary composite wire preform.

Further, in the second invention of the present application, the bundle of wires is held under a predetermined tension, and the forming means and the joining means installed on the cart move the tape into a pipe shape while moving along the bundle of wires. The strands are covered with tape, and the joint ends are joined.

Thereby, the multicore composite wire preform can be manufactured in a batch manner.

In any case, according to the present invention, multifilamentary composite wire preforms can be manufactured in large quantities with high efficiency.

Therefore, the manufacturing cost can be reduced.

[Examples] Examples of the present invention will be specifically described below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram showing an embodiment of the apparatus of the first invention of the present application. Various strands made of simple metals or alloys that are the constituent components of the superconducting wire or the shape memory alloy wire are all wound around a feed-out rod 2. The wire 1 sent out from the reel 2 is straightened into a straight line by a strainer roll 3, and then supplied to pretreatment devices 4a and 4b, where the surface is cleaned. After that, it is supplied to the hole shaping jig 5. This hole shaping jig 5 is a cylindrical body with a truncated conical outer shape, and a large number of strands 1 are guided by this hole shaping jig 5 and inserted through the hole shaping jig 5, so that the strands 1 are They are arranged in a densely packed state in a predetermined arrangement. This bundle of strands 1 is introduced into a forming device 6.

On the other hand, the metal tape 10 made of Cu or the like is
After being unwound and subjected to a predetermined pretreatment by the pretreatment device 13 to clean its surface, it is introduced into the forming device 6 via the guide 14.

In this forming device 6, for example, three pairs of caliber rolls 7 are arranged.
While successively passing through, the tape 10 is formed into a pipe shape around the bundle of strands 1, and the abutting ends of the tape 10 in the width direction are located in a condensation state. The butt ends of this tape 10 are welded by a seam welding device 8. As a result, as shown in FIG. 3, a multicore metal composite wire preform 15 is manufactured, in which a large number of strands 1 are densely packed in a pipe 20 obtained by forming the tape 10 into a cylindrical shape.

This multicore metal composite wire preform 15 is wound up by a winder 17 via a guide 16.

In the manufacturing apparatus of this embodiment configured in this way,
The strands 1 are divided into two types, the first type of strands 1 is straightened into a straight line by a strainer roll 3, and then introduced into the pretreatment device 4a, and the second type of strands 1 are similarly straightened. After the correction, it is introduced into the pretreatment device 4b. In this way, the strands 1 are processed in processing tanks of separate pre-processing devices depending on their type. Thereby, in the post-process wire drawing and heat treatment, it is possible to improve the adhesion between the strands 1 and between the strands 1 and the pipe, thereby preventing inconveniences such as wire breakage. In addition, each strand 1 is straightened by the strainer roll 3 to remove the bending that was caused when it was wound on the reel 2 because the strand 1 after passing through the jig 5 is caused by the bend. This is to prevent the arrangement from being disordered.

Next, the strands 1 are shaped into a densely arranged state by the hole shaping device 5. This bundle of wires 1 is given a constant tension in a steady state due to the tensile force when it is wound up by the winder 17 and the resistance force when it passes through the strainer roll 3 and the hole shaping jig 5. There is. Then, the metal tape 10 fed out from the reel 11 is pretreated by the pretreatment device 13 and then supplied via the guide 14 to the bundle of wires 1 in the stretched state. This tape 10 is attached vertically to the bundle of strands 1 by a caliber roll 7, and is formed into a cylindrical shape so as to surround the bundle of strands 1. Then, the butt ends of the tape 10 in the width direction are seam welded by the seam welding device 8. The thus obtained multicore metal composite wire preform is wound up by a winding machine 17 via a kite 16.

In this way, according to this embodiment, it is possible to stably manufacture a large quantity of multicore metal composite wire preforms with extremely high efficiency.

FIG. 2 is a schematic diagram showing an embodiment of the apparatus according to the second invention of the present application. This device is a batch type device. Although the continuous type apparatus shown in FIG. 1 is more advantageous in terms of manufacturing costs, the batch type apparatus of this embodiment requires relatively little capital investment.

A large number of strands 1 are gripped by chucks 21 at both ends thereof and stretched under a predetermined tension. On the other hand, the metal tape 10 is placed below the bundle of wires 1 along the bundle of wires.

The forming device 22 is installed at the bottom of the truck 23. This cart 23 is moved along the tape 10 and the strands 1 by a drive device 24. The forming device 22 includes three pairs of caliber rolls 25 installed on a truck 23''-, and a forming tool 26 also installed on a truck 23+. This forming device 2
When the metal tape 10 moves in the direction of the arrow 2 or 30, the metal tape 10 is successively formed into a cylindrical shape by three pairs of caliber rolls 25 and a forming tool 26. The butt ends of the tape 10 in the width direction are welded by a seam welding device 27.

In the apparatus configured in this way, a bundle of wires 1 is placed between the chucks 21, and the cart 23 is moved in the direction of the arrow 30. Then, the tape 1 is formed by the forming device 22.
0 is formed into a curve, and the wire bundle is covered with tape 10 in the shape of a pipe. The butt ends of the pipe-shaped tape 10 are welded by a welding device 27. In this way, while the forming device 22 moves in the direction of the arrow 30, the metal tape 10 is formed into a pipe shape, and a bundle of strands or a densely packed multicore metal composite wire base material is inserted into the pipe. .

In this embodiment as well, the multicore metal composite wire base material can be manufactured quickly and with extremely high efficiency. In addition, trolley 23-J
Second, a brush (not shown) may be installed and the tape 10 may be continuously polished by this brush as the cart moves.

When there are many types of strands, it is difficult to construct a continuous line (see Figure 1) that can accommodate them, as it increases the equipment cost. This method has the advantage that it can easily accommodate many types of strands. Further, even if the specifications of the multi-core metal composite wire bomb H to be manufactured are changed, it can be flexibly handled.

Next, the results of actually manufacturing a multicore metal composite wire material using the embodiment apparatus of the present invention will be described.

The equipment used was of a continuous type, as shown in FIG. 25 A1 wires and 26 Cu wires were used. First, the wire drawing lubricant was removed from the wire after wire drawing using an organic solvent, and each approximately 200 m portion of the wire was wound onto a bobbin and placed on a feed roll 2. Thereafter, the strands are manually unwound from each reel 2, and the tips of each are placed in the pretreatment tank 4a.
4b and jig 5, and each tip was lightly brazed to the extent that it would not come apart. Thereafter, the strand bundle was passed through the pipe frame device 6 by inching, and the tip was fed to a position where tension was applied (a position where friction effectively acted between the pipe and the strands).

The line was then turned on and seam welding began. The linear speed in this case was 2.5 m/min, and the overall tension of the strands was about 520 kgf. In this way, about 1
A multicore metal composite wire material was manufactured over a length of 20 m.

As a result, as shown in FIG. 3, a multicore metal composite wire material was obtained in which the strands 1 were densely packed inside the pipe of the tape 10 without causing any disorder in their arrangement. Further, the obtained multi-core metal composite wire material was cut into sections of about 20 meters and the cross sections thereof were examined, and as a result, there was no disorder in the arrangement of the strands in any of the cross sections.

With conventional manual manufacturing, the limit was to produce multi-core metal composite wire material with a length of 2 m per 10 wires, but according to this example, multi-core metal composite wire material with a length of at least 100 times that length could be produced. Wire material can be manufactured. Therefore, productivity can be dramatically improved and manufacturing costs can be significantly reduced.

"Effects of the Invention" According to the present invention, a multifilamentary composite wire preform can be produced industrially and stably in a convenient location, and the multifilamentary composite wire preform can be supplied at extremely low cost.

1.1, the present invention makes it possible to take advantage of the low cost of the Cu-Ni-A7-based shape memory alloy, contributing to the expansion of its applications. It goes without saying that the present invention can be applied to the production of other shape memory alloy phases or superconducting shrines.

Thus, the present invention makes a significant contribution to the development of the fields of shape memory alloy phases and superconducting materials.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing an embodiment of the first invention of the present application, Fig. 2 is a schematic diagram showing an embodiment of the second invention of the present application, and Fig. 3 is a sectional view showing a manufactured multicore metal composite wire material. It is. 1; Element wire, 4a, 4b, 13; Pre-treatment device, 5; Hole shaping jig, 6, 22; Framing device, 8° 27; Welding device, 10; Metal tape, 23; Cart FIG.

Claims (2)

[Claims] (1) A shaping means that inserts a plurality of strands of metal or alloy into a predetermined arrangement at the exit while applying a predetermined tension, and surrounds the strands of metal or alloy. 1. An apparatus for manufacturing a multicore composite wire preform, comprising a covering means for covering with an alloy tape, and a joining means for joining abutting ends of the tape. (2) means for holding a plurality of wires made of metal or alloy by applying a predetermined tension; means for longitudinally attaching a tape made of metal or alloy along the bundle of said wires; It has a forming means for forming a pipe around a bundle of strands, and a joining means for joining the abutting ends of the tape, the forming means and the joining means are installed on a common carriage, and the forming means and the joining means are installed on a common carriage, An apparatus for manufacturing a multicore composite wire preform, characterized in that a cart moves along the bundle of strands.