SU1362526A1 - Method and apparatus for stripping wire from scale - Google Patents

Abstract

The invention relates to the field of rolling production, in particular to the processing of wire. The purpose of the invention is to improve the quality of the wire and expand its technological capabilities by cleaning the wire, regardless of its magnetic properties. During wire drawing (P) 3, an alternating corona discharge is excited from its surface by connecting to the source 6 an alternating high voltage of the ring electrode 4 and P 3. At the same time, P 3 oscillates and the scale of P 3 is destroyed. the expense of the intense emission of electrons from the surface of the P 3. The device contains a drawing mechanism, the exciter of wire oscillations in the form of an annular electrode with a tubular dielectric placed in it, and a voltage source. 2 sec. f-ly, 3 ill. c (L Figure 1

Description

11362526

The invention relates to the field of rolling production, in particular to the processing of wire.

The purpose of the invention is to increase the quality of the wire and expand the tech- nological logical capabilities by cleaning the wire, regardless of its magnetic properties.

FIG. 1 shows a general view of a device for carrying out the cleaning of a wire during its oscillations in the form of a standing wave; in fig. 2 - the same, with oscillations in the form of a traveling wave;

layer of scale on the surface of the wire. :

In this way . The excitation from the surface of an alternating corona wire provides electronic destruction of the scale layer and its simultaneous inertial shaking due to oscillations of the wire.

If the creation of oscillations of the wire 3 in the form of a standing wave is required, the frequency of the alternating voltage is set to be equal to one of the resonant frequencies of the wire segment 3, according to fig. 3 - variants of the oscillation of the wire 16 between the pinch roller blocks at different resonant frequencies. The device contains a pulling mechanism, which includes a drum 1 and two a pair of pinch rollers 2, a wire vibrator 3, made in the ring electrode 4 with a tubular dielectric 5, for example, made of quartz glass, as well as which, for example, a GZ-56/1 signal generator is used, through an amplifier connected to a higher transformer (not shown). The outputs of the source 6 AC high voltage plug -. to the annular electrode 4 and to the wire to be treated 3.

In another embodiment of the device (see Fig. 2), which provides for the excitation of oscillations of the wire 3 in the form of a traveling wave, the ring electrode 4 is divided into several sections, which are connected to the source 7 of multiphase high voltage.

The method of cleaning wire from scale is carried out as follows.

During wire drawing 3, an alternating corona discharge is excited from the surface by connecting source 6 to electrode 4 and wire 3, during which, due to alternating force excitation, wire 3 is reduced to ring 2. Resonant frequency is determined by the ratio

20

25

f - - 2Lg 7

thirty

tU

where is the tension force of the wire, H; L - wire length between pairs

rollers 2, m; f - wire weight per unit

its length, kg / m;

 n - 1, 2, ... is the sequence number of the resonant frequency.

An example of an oscillating wire shape at different resonant frequencies is depicted in FIG. 3

To realize the oscillations in the form of a traveling wave, the device of FIG. 2, where a 7 to 35 multiphase high voltage source is used.

The magnitude of the voltage is chosen so that it is greater than the limit of occurrence of the variable corona discharge, which mainly depends on the diameter of the wire 3, the distance between the electrodes, and the frequency of the alternating field, and is usually 1-2 kV / cm .

A corona discharge into the blood sample is prevented by a tubular dielectric 5, a sectional wire 3 and a ring electrode 4.

Technical and economic effect of

implementation of the invention provides a gratuitous movement with a frequency equal to 50 by improving the quality of the wire and at a frequency of alternating voltage. The increase in the technological capabilities of the corona discharge is caused by the considerable unevenness of the electric field due to the small radius of curvature of the wire. During the 55th discharge, the wire is ionized with a circulating gas, and also due to the intense emission of electrons from the surface of the wire.

compared to the base object. Invention Formula

1. A method of cleaning a wire from scale, consisting in vibratory separation of scale from its surface, characterized in that

layer of scale on the surface of the wire. :

In this way . The excitation from the surface of an AC corona wire provides electronic destruction of the scale layer and its simultaneous inertial shaking due to oscillations of the wire.

If it is necessary to create oscillations of the wire 3 in the form of a standing wave, we set the frequency of the alternating voltage equal to one of the resonant frequencies of the wire 3, us 2. The resonant frequency is determined from the relation

20

f - - 2Lg 7

tU

where is the tension force of the wire, H; L - wire length between pairs

rollers 2, m; f - wire weight per unit

its length, kg / m;

 n - 1, 2, ... is the sequence number of the resonant frequency.

thirty

An example of an oscillating wire shape at different resonant frequencies is depicted in FIG. 3

To realize the oscillations in the form of a traveling wave, the device of FIG. 2, where a 7 to 35 multiphase high voltage source is used.

The magnitude of the voltage is chosen so that it is greater than the limit of occurrence of the variable corona discharge, which mainly depends on the diameter of the wire 3, the distance between the electrodes, and the frequency of the alternating field, and is usually 1-2 kV / cm .

A corona discharge into the blood sample is prevented by a tubular dielectric 5, a sectional wire 3 and a ring electrode 4.

Technical and economic effect of

implementation of the invention is provided by improving the quality of the wire and the expansion of technological capabilities

compared to the base object. Invention Formula

1. A method of cleaning a wire from scale, consisting in vibratory separation of scale from its surface, characterized in that

In order to improve the quality of the wire and expand its technological capabilities by cleaning the wire, regardless of its magnetic properties, the vibration separation of the scale is produced by exciting a corona discharge from the surface of the wire. 2. Device for cleaning wire from scale, containing mechanism

Two pairs of pinch rollers and a drum and a wire oscillator installed between the rollers, characterized in that the wire oscillator is made in the form of an annular electrode with a tubular dielectric placed in it, as well as an alternating high voltage source.

FIG. 2

P 1

/

I

t

I

I

s

I

g

L 2 FIG. 3

Editor

Compiled by V. Greenberg O. Spesivk Tehred M.Didp Corrector M. Demchik

Order 6335/6 Circulation 731 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

"..-.

proy about tvnno-poligr fychskoe enterprise, Uzhgorod, st. Design. four

Claims (2)

Claim 1. The method of cleaning the wire from scale, which consists in vibrational separation of the scale from its surface, characterized in that, in order to improve the quality of the wire and expand technological capabilities by cleaning the wire regardless of its magnetic properties, vibrational separation of the scale is carried out by excitation from the surface of the wire gas corona discharge. 2. A device for cleaning the wire from scale, containing a pulling mechanism in the form of two pairs of pressure rollers and a drum and a wire vibrator installed between the rollers, characterized in that the wire vibrator is made in the form of a ring electrode with a tubular dielectric placed in it, as well as a source ac high voltage. FIG. 2 * 1362526 FIG. 3