JPS6167502A - Manufacture of metallic wire - Google Patents

Abstract

PURPOSE:To manufacture a wire rod from an unexpensive sheet in high productivity, regardlessly of its frictional coefficient different with the kinds of metals, by forming many straight grooves on a metallic sheet and forming projecting parts, formed by said straight grooves, into wire rods by cutting the grooves. CONSTITUTION:For instance, a long-sized metallic sheet 1, made of Ti-alloy having a high frictional coefficient, is passed between rolling rolls 3 having each rectangular square-grooves 2, to form regular-square projecting parts 4 and recessed grooves 5 between them plurally in straight lines by rolling. Next, the rolled sheet 1 is passed through two paris of separating rolls 6, formed by arranging a pair of small-pitch rolls and another pair of large-pitch rolls in series, and the grooves 5 are stretched and cut by separating the adjoining projecting parts 4 alternately in the opposite and thickness directions of parts 4, and the parts 4 are discharged as wire rods 7. Next, the wire rods 7 are fed to the round grooves formed on a pair of forming rolls 9, to deburr both sides of the wire rods 7 as well as to form their square cross sections into round ones before taking up them by a reel 10.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a method for manufacturing wires, electric wires, or metal wires used as brazing rods for welding, and particularly relates to a method for manufacturing metal wires made of metal materials that are difficult to process. The method (this is what is left over).

[Conventional technology]

In the past, the general method for manufacturing gold wire was to hot-roll and cold-roll a billet in the shape of a weird round bar. It was a method in which the paper was drawn down to a predetermined fineness one after another using a machine.

[Problem that the invention seeks to solve]

However, the amount drawn by this hole die is determined by the area reduction rate, generally 20% I'll! i&
If the area reduction rate was increased beyond this, the sliding friction generated between the surfaces of the treated material and the treated material would be insufficient to provide enough resistance, and the treated material would tear, making it impossible to perform the drawing process.

In addition, there is a large difference in the speed at which the wire is pulled from the hole die due to the sliding friction G of the metal itself, and this difference in sliding friction causes a difference in wire manufacturing productivity. ■ Or happened.

For this reason, research and development of lubricant f1 agents has progressed to find a way to reduce the 'A I5 of this slip, which will lead to improved productivity. For metals with low
Although it is possible to increase the drawing speed, no good lubricant has been developed for so-called rough-machined materials with a high coefficient of friction, such as titanium, and the drawing speed is still low. Comparing this with iron wire, which has a high drawing speed, for example, with a wire diameter of 2IIlφ, the area reduction rate is 20
%, iron wire is pulled out at a speed of 400 to 800 m/min, while titanium wire is pulled out at a speed of 8 to 14 m/min. This difference in drawing speed is more than 50 times, making it difficult to pull out titanium wire. Wire productivity was extremely poor.

The method of drawing a cylindrical billet using a hole die required many types of complicated manufacturing surfaces and required a large amount of equipment costs.

However, when manufacturing metal wires, using special metals such as titanium to make metal wires has particularly poor production efficiency and costs a lot of money, so the product cost has been extremely high.

[To solve the problem l) The present invention has been made in view of the above.
1. 'l' l-:) Due to the different friction coefficients depending on the type, it is a good souvenir. The present invention provides a method for producing metal wire having a desired thickness of about 2 mm.

That is, a multi-linear line 11 is formed on the surface of a metal plate, and the grooves formed by the grooves are pulled in opposite directions to form the grooves between the protrusions. The length of each convex portion made into a wire rod by pulling and cutting is 41 "Q."

[Effect]

As a result, the convex portion is continuously formed as a metal wire,
Furthermore, the cross-section of the rolls can be formed into a predetermined shape.

〔Example〕

One embodiment of the present invention will be described with reference to the drawings.
01, a long metal plate made of titanium alloy wound into a coil with a thickness of 211 m and a length of ii' 200 tn. As shown in FIG. 3, a plurality of square convex portions 4 with an angle of 1<90" and concave grooves 5 therebetween are formed by rolling on both sides of the convex portions in a straight line.

Next, this is passed between two pairs of guide rollers 6 for separating, which have a roll with a small interval followed by a roll with a large interval, and the adjacent convex portions 4 are alternately pulled in opposite directions in the thickness direction, By pulling in the opposite direction by 180°, the grooves 5 between the convex portions are pulled and cut, and the convex portions 4 are taken out as the wire rod 7. Next, this wire rod 7 is made to bite into the round grooves 8 of a pair of forming rolls 9 each having a semicircular groove 8 formed therein, and the edges protruding on both sides of the wire rod are removed and the corners of the square wire rod 7 are rounded. Then, take up this reel 10
Wind it up.

These operations are first carried out manually from the rolling roll 3 to the forming roll 9 at the end of the metal plate 1 (the first part is processed), then the i&drive switch is turned on, and the rolling roll and forming roll move at a constant speed. move and perform these steps continuously. Further, the guide roll does not run on its own, but is rotated by a moving metal plate.

In addition, in order to complete the wire as a perfect round, after passing through the forming roll 9, a peeling die (not shown) is used to remove the bulges generated on the forming roll, and the surface is polished. The calendar is cut into pieces, reeled, and cut to specified dimensions to produce 91 pieces.

In the example, the corners of the convex portions were formed with rolling rolls, but if they were made into obtuse angles of 90° or more, there would be an increase in loss when forming them into circles with forming rolls. Then, the blade of the roll may break or break. For 1] 0
“Or optimal.

〔Effect of the invention〕

As described above, the method of the present invention is similar to the method of drawing from a hole die from 1jfi, and -1: Genus II.
Not affected by the sliding friction of the body 1), Fu:; Ino,
2. Aluminum, i.
Even titanium, which was considered to be the No. 1 gland l71), has a small production capacity J
・'f'21'J, < lli:j ii', j −
I can do J loco.

That is, 2 mm t X 500 mff1 in X200
When making a wire of 2Φ using m1- coil material.

Rolling speed: 10 m/min Required time: Approximately 20 to 30 minutes of rolling, 20
Total minutes: 40 to 50 minutes Product weight: 2X500X4.5X0.88-792 k
g... (However, weight loss rate 12%) Product total length 178 pieces x 30
8 m = 54824 m #55000 m Wire making speed 1100 m to 1375 m per minute As is clear from the above, the wire making speed of the present invention cannot be compared at all with the titanium drawing speed of 8 to 14 m per minute described as a conventional example. It becomes amazingly fast, reaching the iron drawing speed of 400 to 800 m.
The cotton wire speed is increased by 2 to 3 times compared to the conventional method, and the production efficiency is dramatically improved compared to the method of drawing from a hole die. According to this method, the production efficiency can be improved even with all kinds of metals, and it can be seen that positioning wire materials such as titanium are particularly effective.

Furthermore, when using the IJ construction method, books are also made of cylindrical caster.
1! (can use a curved flat plate ≧1 ζLl 1
-1・'□':]・'15"ku, cheap (', as in providing a curved wire, etc.)l + effect.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the juxtaposition of i((,1) of the apparatus to which the method of the present invention is applied, and FIG. 2 is the main point of FIG. 1: HI)I,
Figure 3 is a side view of the rolling roll, Figure 4 is the forming I
The side view of the knoll and FIG. 5 are cross-sectional views of the metal after passing through the rolling rolls. 1. Metal plate, 2. Square groove, 3. Rolling roll 1.
Convex portion, 5... Groove, 6... Guide roller, 7... Line (
O, 8... Round groove, 9... Forming roll, lO... Take-up reel Patent applicant Shigenobu Ueno No. 3 (!1

Claims (2)

[Claims] (1) A method for manufacturing a metal wire, which comprises forming a plurality of linear grooves on the front surface or the front and back surfaces of a metal plate, and cutting the grooves to make the convex portions into wire rods. (2) A plurality of linear grooves are formed in opposing positions on both sides of a strip-shaped metal plate using rolling rolls, and then adjacent convex portions are alternately pulled in opposite directions in the thickness direction using a separating guide roll. . A method for manufacturing a metal wire, which comprises: obtaining a wire rod by tensile cutting the groove, and forming the wire rod into a predetermined shape using forming rolls.