Magnetic-impulse installation for processing a series of magnetic field pulses

 

(57) Abstract:

Usage: in the processing of metals by pressure pulsed magnetic fields. The inventive magnetic impulse installation contains a charger that is connected to the capacitive energy storage device. In parallel, a controlled discharger connected to the buffer capacitor in parallel, which included a controlled spark gap. In parallel, the buffer capacitor through a pair of stationary charging electrodes rotating spark gap connected in series connected load and frequency control capacitor. Rotating discharger provided with pairs of bit stationary electrode and a few pairs of initiating electrodes. Initiating electrodes are arranged so that all angles between them in the plane perpendicular to the axis of rotation of the spark gap, but one that is equal to (360o+ )n, where n is the number of pairs of initiating electrodes, and the angle between adjacent pairs of charge and discharge of the stationary electrodes. Mentioned stationary electrodes are arranged in groups, the number of which equals the number of pairs of initiating electrodes. The angular distance between adjacent groups must be of at least the Installation also contains a control unit. 1 Il.

The invention relates to the field of metal forming, as well as to the field of surface treatment of metals, in particular to the field of metal processing pulsed magnetic field.

Primarily the invention can be used for diffusion coating a metal surface coatings and surface treatment.

The closest technical solution to the proposed installation is magnetic-impulse installation comprising a charger connected to the capacitive energy storage device, the arrester and the load in the form of a coil.

A disadvantage of the known device is that the functionality is limited due to the inability to generate a series of magnetic field pulses with high repetition rate and exact dosage of input energy.

The invention aims to expand the functionality of the installation by providing the possibility of generating a series of magnetic field pulses with a high repetition rate and high rate of energy input into the load, as well as ensuring accurate dosing of the energy input to the load.

The assigned AOR, capacitive energy storage, load in the form of an inductor and spark gap, provided customazation and buffer capacitors, the two managed dischargers, one of which is connected between the capacitive energy storage device and the buffer capacitor and the second parallel to the buffer capacitor, and the main spark gap is made rotatable, mnogodetnym with distributed switching zones and provided with pairs of fixed charge and discharge electrodes and n pairs of rotating electrodes, initiating the charge and discharge capacitor frequency control through the load, and all angles between them, except one, is chosen equal to (360o+ )n, where a is the angle between adjacent pairs of charge and discharge of the stationary electrodes, which are located around the circumference of the discharger groups, the number of which is equal to the number of pairs of initiating electrodes, and the angular distance between which is greater than T/ t 360owhere T is the pulse duration, charging the buffer capacitor from the capacitor storage energy, t is the period of rotation of the spark gap, the installation is also provided with a control unit through which is provided by actuation of the controlled device, connected in series with the buffer capacitor peneeda drawing, which is a special case of installation with three pairs of initiating electrodes.

The system includes a charging device 1 that is connected to the capacitive energy storage device 2. Parallel to the capacitive energy storage device 2 through a controlled discharger 3 is connected to the buffer capacitor 4, in parallel, which included a controlled spark gap 5. In parallel, the buffer capacitor through a stationary charging the pair of electrodes 6 a rotating spark gap 7 is connected in series connected load 8, and frequency control capacitor 9. In parallel, they enabled bit pairs of stationary electrodes 11 a rotating spark gap 7. Rotary spark gap 7 is also equipped with several pairs of initiating electrodes 11 arranged so that all angles between them in the plane perpendicular to the axis of rotation of the spark gap, but one that is equal to (360o+ a )/n, where n is the number of pairs of initiating electrodes, and a the angle between adjacent pairs of the charger 6 and bit 10 of the stationary electrodes rotating spark gap 7. The stationary electrodes are mounted around the circumference of the groups, the number of which equals the number of pairs of initiating electrodes of a spark gap 11.

The group shifted one relative to the other spark gap 7 is equal to and determined by the necessary duration of a series of pulses. The angular distance between adjacent groups must be at least T/ t 360owhere T is the pulse duration, charging the buffer capacitor, t is the period of rotation of the spark gap. The installation also includes a control unit 12 that provides the managed switching surge arresters 3 and 5 at the time when couples new initiates electrodes 11 are located outside of the sectors formed by a group of stationary charger 6 and bit 10 of the electrodes.

The device operates as follows.

The rotating part of the spark gap 7 is driven, then begins charging the capacitive energy store 2 from the charger 1. After reaching on a capacitive storage 2 set voltage, the control unit 12 carries out the switching of the controlled device 3 when initiating electrodes 11 are located outside the sectors occupied by the groups of stationary pairs charger 6 and bit 10 of the rotating electrodes of a spark gap 7. As a result of triggering the controlled device 3 is charge the buffer capacitor 4.

After couple of initiating electrodes 11 reach during its rotation groups of the stationary charger 6 and bit 10 of the electrodes they commute series impulso through the load 8 and one of the pairs of stationary charging electrodes 6, and its discharge through the load 8 and one of the pairs of stationary discharge electrodes 10. However due to the fact that all the angles between the initiating electrodes 11, except one, is equal to (360o+ a )/n, is provided to initiate pairs of stationary electrodes rotating spark gap 7 consistently in all groups, and consistently all the initiating electrodes 11.

After initiating electrodes 11 complete switching of all stationary steam charger 6 and bit 10 of the rotating electrodes of a spark gap 7, the control unit 12 provides the managed switching spark gap 5 through the final discharge of the buffer capacitor 4.

The advantage of the installation is ensured by rotating mnogokanalnyy discharger with distributed switching zones provided so that all angles between them, except one, is equal to (360o+ a )/n and a stationary pair of charge and discharge electrodes are located around the circumference of the rotating discharger groups, and the number of groups equals the number of pairs of initiating electrodes, and the angular distance between adjacent groups exceeds 360oT/ t, where t is the pulse duration, charging the buffer capacitor, t management it implements the managed switching surge arresters, connected in series and in parallel to the buffer capacitor, and therefore, charge the buffer capacitor at the time when the initiating electrodes rotating spark gap are outside the sectors occupied by the groups of stationary charge and discharge electrodes.

Magnetic-impulse installation for processing a series of magnetic field pulses containing AC charger, capacitive energy storage, load in the form of an inductor and spark gap, characterized in that it is provided customazation and buffer capacitors, the two managed dischargers, one of which is connected between the capacitive energy storage device and the buffer capacitor and the second parallel to the buffer capacitor, and a control unit, the main spark gap is made rotatable, mnogodetnym with distributed switching zones and provided with pairs of fixed charge and discharge electrodes and pairs of rotating electrodes, initiating the charge and discharge capacitor frequency control through the load, a pair of rotating electrodes are placed around the circumference of the spark gap so that all angles between them, except for the charge and discharge of the stationary electrodes, located around the circumference of the discharger groups, the number of which is equal to the number of pairs of initiating electrodes, and the angular distance between them exceeds the amount of T/360where T is the pulse duration, charging the buffer capacitor from the capacitive energy storage; - the period of rotation of the spark gap, and a control unit connected to provide actuation controlled spark gap is connected in series with the buffer capacitor before passing to the initiating electrodes through the group of fixed electrodes.

 

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