DE1734896U - DEVICE FOR GALVANOPLASTIC COVERING OF RECORD MATRICES WITH AN ELECTRICALLY CONDUCTIVE SURFACE BY ELECTROLYSIS. - Google Patents

Description

HVPhilips ¹ Gloeilampenfabrieken, Eindhoven / Holland

Device for galvanoplastic covering of record matrices with an electrically conductive surface by electrolysis.

The hiring "relates to a device for electroforming Covering record matrices with an electrically conductive surface. This is done according to a "known method" Electrolysis in an electrolyte solution in which the matrix »then acts as the cathode of the circuit to be closed via the electrolyte held »is arranged. This electrolyte solution will

with “led in a circle and circulates here in an overflow and a container with a lower outlet in which the record matrix is arranged in the area of a spray nozzle. The second pole of the circuit is the anode, which is known in a " Device is placed on the bottom of the vessel. Because the Electrolyte solution both in the direction of having a conductive surface to be coated and is sprayed in the direction of the anode, attempts have been made to avoid the To keep anode sludge from the object to be electroplated. But it was found that as a result The turbulence occurring in the electrolyte solution nevertheless creates currents that are directed towards the objects to be covered were, and led to the anode sludge carried along settles on the objects to be coated. A device has now been found which makes it possible to overcome this disadvantage to fix

In a device for galvanoplastic covering of sound · · Plate matrices with an electrically conductive surface by electrolysis in a circuit, via the anode flushing electrolyte solution, which is in an overflow and un-

Shape. No. 28410 5000 KH 0546

The container provided with the outflow circulates, in which the Electrolyte solution is sprayed against the record matrix from a spray nozzle, is, according to the masonry, the anode below the evenly apertured bottom of the for receiving the record matrix, serving container arranged

In this way. will be avoided with certainty * that the electrical .lyt currents over.-the anode is directed towards the objects to be covered. Have current flow, so. that it It is therefore also ruled out that anode sludge and any other impurities can be seen on the one with a conductive one Surface, ana. remove killer-pulling record matrices »

In an expedient embodiment, the anode is in a separate » i & eiehfalXs in an overflow area. holder arranged: i holding container in such a way that the overflow of this comprehensive container is at a lower level than the overflow of the container containing the Sehall plate matrix ' In this way it is achieved that the anode is on top is flushed evenly, so that an optimal electrical There is conductivity between the anode and the cathode *

The hiring is shown on the basis of some of the drawings Embodiments explained in more detail

Fig. 1 shows a device for electroforming covering of objects according to the control, in which the anode placed in a second vessel «-

Fig. 2 shows a device for electroforming covering of objects according to the innovation, in which the vessel on-the anode on rests

The device according to FIG. 1 consists of a vessel 1 with an overflow 2 and a base 3 *. The bottom 3 consists of a sieve made of, for example. Sylon filter cloth. In the ßefaS 1 you can see & ± n & spray nozzle 4 * that of. a pump 5 is fed with an electrolyte solution 6 · In the vessel 1 there is a Sehallplatte matrix 7, which represents the cathode of the circuit to be closed via the electrolyte. A second vessel 8 is with a

-. 3

Anode provided 9 and comprises the vessel 1 in the way _t that an overflow 10 of the second vessel to a lower level than the overflow 2 of the vessel 1 is "In this way it is achieved, that the circulating in the circulation electrolytic solution is always in a downward flow flows through the bottom 3 so that the sludge formed on the anode can be discharged via the overflow 10 and the possibly existing lower drain 11 of the vessel 8 and can be filtered out with a filter 12 in the pump line.

In FIG. 2, an anode 20 is arranged on a plate 21 which forms a channel 22 around the anode 20 and is provided with a drain 23. On the anode 20 there is a Se barrel 24 which contains a spray nozzle 25 and a record die 26. The SefäS 24 1st in the same quietly ¹ as shown in Fig.1 with a siebf ärmigen bottom 27 and an upper run 28 provided. The electrolyte solution 29 leaving the seba 24 through the bottom 27 causes the sludge formed on the anode 20 to be discharged through the lower drain 23

Protection claims

Claims (1)

ί π π η η r C Protection claims s An apparatus for electroforming Covering of Schallplattenmatrizen with an electrically conductive surface: \ profiled by electrolysis in a recirculating, via [the anode purging electrolyte solution, the container is provided in an with ι tiber run and lower flow circulates in which the electrolyte solution of a Spray nozzle is injected against the record matrix, characterized in that the anode (9 or · 20) below the base (5) which is evenly provided with openings 4ea #ax receiving the record matriae (T "or · 26) ^ ₁ serving container ( 1 or 24) is arranged Device according to Claim 1 *, characterized in that the anode (9) is arranged in a separate container (8) also provided with an overflow, which encloses the container (1) in such a way that the overflow (IQ) of the container (8) is at a lower level than the overflow (2) of the container Ct) *