SU33436A1 - Spray Plating Device - Google Patents

Description

J, The invention relates to a device for sputtering metallization of a material harvested in the form of a wire, melted electrically by the method of resistance, and then sucked in by a spraying nozzle.

In the device according to the invention, the melting chamber, to which the wire is continuously fed, is made in the form of a hot point.

In the schematic drawing of FIG. 1 shows the alignment in longitudinal section, FIG. 2 and 2 show details of the device and FIG. 3, another variant of the device in longitudinal section.

The proposed device consists of an apparatus that melts a wire, from a mechanism that feeds it to the melting apparatus, and from a nozzle. A transformer 7 is used as the melting wire of the apparatus. First, the winding 2 of this transformer is designed for normal mains voltage, for example, 120 or 220 volts, and the secondary o6MOTkli 3 is for low voltage of about 5-10 volts. This last ends with massive clips 4-4, in which two 5-5 angles are clamped, which short-circuit it. Both of these angles gradually taper to the length of their contact and equip

(28).

The contact planes of the grooves (Fig. 2) that form the circular channel 6f through which the melted wire 7 passes. The short-circuit current of the transformer passing through the carbon n heats them, moreover, since the resistance of the coal also changes dramatically; the place of contact is the wallpaper of the coals, where the surface of the contact is once c. 10-15 less than the cross section at the clamps, reaches its maximum value, then it is here, near the wire, where the maximum heat release takes place. This is the heat and melted by the electrical wire.

The concentration of heat release in the right place, i.e., near the channel b, can be enhanced by making the ends of the coal 5-5 of a less electrically conductive mass, for example, of a molded mixture of coal with magnesite or other low-conducting material.

The contact of the coals 5-5 and the formation of the closed channel 6 is not necessary, the contact can be formed by the wire itself (Fig. 2).

The wire feeder consists of an electric motor I promoting it using a gear system: a 10-10-11 worm gear and a number of rollers 72. Instead of an electric motor, it can be taken to move it. air turbine or clockwork mechanism.

The nozzle consists of a core 13, made of a refractory non-electrically conductive substance, from ring 14, a part screwed into supply air to the nozzle —/5, and from cover 16 with air-swirling wings 77.

The entire device is enclosed in a casing with a handle to which a transformer is attached. Air passes through a reducing valve and a tube into the annular channel 20, from where it goes through two channels 21-21 and slits in the ring 14 into the nozzle. The adjustment of the air is carried out by a valve or a cap / 5 nozzle. A switch placed in the handle serves to turn off the current.

Alternatively (FIG. 3), bar-oan 22, made of a refractory, non-conductive substance and provided with an annular electrode 23 attached to one of the poles of an electric current source, was used to melt the wire. Inside the drum, on his, placed coal 2, h: o through hole, for the passage of the wire (rod). All spaces between the central corners 24 and the drum electrode 23 are filled with refractory, -conductive, for example, carbon graphite powder. The coal 24 through the melted wire 7 of the ring 26-27, the brush 28 and the switch is connected to the second pole of the current source. Due to this, when the switch is turned on through the drum from the electrode 22 to the coal 24 through, the powder begins to flow, indifferently constant or alternating, heating the powder. The latter heats up, however, unevenly, the greatest heat

takes place where the current density reaches the highest value. Due to this, the central coal 24 is very fast. It is heated and begins to melt the wire passing through it 7.

The subject matter of the invention.

Claims (5)

1. A device for sputtering metallization of a material procured in the form of a wire, melted electrically by the resistance method, and then sucked in by a spraying nozzle, characterized in that the melting chamber, into which the wire is continuously fed, is made in the form of an electrically heated glow point formed by grooves in closely contacting each other, closing the heating circuit, high resistance electrodes. 2. In the device according to claim 1, in order to localize the generation of heat, the electrodes having constricted contacting. 3. In the device according to claim 1, the use of carbon electrodes pressed from substances of different electrical conductivities, in particular, with an increasing proportion of substances of low electrical conductivity in the direction of the contacting ends of the coals. 4.Video modification of the device according to claim 1, characterized in that the electrical heating device is made in the form of a central channel in the corner forming one of the electrodes of the heating circuit, which is closed to the powder resistance surrounding the glowing electrode. 5. In the device according to claim 4, applying a current feed through the melted wire. Well to the author's testimony of S. E. Kuznetsov and A. Ya. Svenchansky No. 38436 P1 2 hz I Fip1