SU59788A1 - bath for continuous electroplating of metal bands, strings, etc. - Google Patents

Description

For a continuous electroplating of metal tapes, npofiolok, etc., baths often consist of finishing compartments, in each of which they fly or wire before posting into electroplite and at: exiting from it, the dyne rollers located on top across from it , but also still the third roller immersed in the electrolyte.

In wands of this kind, this third, intermediate roller is installed in one place, predominantly in the lower part of the bath, in order to obtain as much path as possible in the electrolyte.

In contrast, according to the present MODE & tenmenu, the roller of each compartment placed in the electrolyte is moved up and down in order to regulate operation without stopping the bath.

In addition, in each compartment of the bath there are PLACES parallel to the inclined direction of the tape — with the greatest immersion of the baffle of the rear roller, forming chambers separated from the bath’s space in which heating elements are placed, or (instead of

of these partitions) filters for filtered electrolyte without stopping the bath.

In FIG. 1 shows a general view of an installation consisting of a row of baths according to the invention, fit. 2 - the same installation in the plan.

The device described below is applicable for the production of electro-metallic coatings of metal tapes, wires, etc. by any metals, including for one-sided installation of iron tapes used for the manufacture of Bergman tubes, Kuloe tubular wires, etc. In the latter case it is advisable to produce electrolytic coating of iron ribbons, skip over: The ends of the vain are paired because the sides of the two paired ribs facing each other are not exposed to lead coating.

As can be seen from the drawing, the installation consists of three successively installed bathtubs I, II and III with different number of compartments, between which there are additional baths IV, V and VI to wash the tape with water when it passes from one bath to; I curse.

In the first wash I, the tape is cleaned and degreased with alkali, then rinsed in -bang-IV with water, in the second waen II - etching of the tape with sulfuric acid, in the bath V, and, finally, in bath III - electrolytic metal deposition - cover, natrimer, in this particular case, with phenol-sulfonic vine with a flush-free fluorosilicate electrolyte.

In baths I and C, as well as in bath III, the middle roller immersed in electrolyte roller 6 is made height-adjustable. In addition, transverse vertical walls 7 are provided in the electrolytic van E 1P, dividing bath III into separate compartments, as well as parallel (on the tape) board (a) inclined walls (b) separating from each chamber 1, 2, 3, 4. In these cells, electrolyte heaters are located.

The tape (a) enters the installation in the direction of the arrow cnpaiBa to the left and, having passed through vains I, IV, II and V, enters bath III through the upper roller 5, with which it forms close contact due to its tension.

As can be seen from FIG. 2, through the installation, one can temporarily pass through a string of ribbons, which, as indicated above, can be passed on for one-sided leaven: the vanilla can be steamed.

From the roller 5, the tape (a) bends down, enters the electrolyte of the first compartment of bath III, bends around the free rotating area 6 below, goes into the electrolyte, and then goes up, leaves the electrolyte and through the second upper roller 5, which can also free to rotate, p. rehodit to the next compartment of the bath III. The anodes 8 are suspended above the middle rollers 6.

Partitions 7, forming, may not reach the top of the bath, and the compartments may be formed by the inclined walls (b) themselves.

The level of electrolyte filling individual can be located higher than the wall edge (li), and then the whole bath is filled with electrolyte of the same composition, but CAN each of the compartments filled with electrolyte, for example, a different concentration or even a different composition. for example, the formation of a bimetallic coating, so that the mode of the bath can already be largely modified by this alone.

Even more flexibility in controlling the electrolytic process is, however, the possibility of moving the rollers b iB in the vertical direction, which is the essence of the invention.

To perform this movement, the axles of the rollers 6 are reinforced in vertically-spaced frames, the side racks of which can move up and down, for example, when worn, worn on -they-top chesters with nut-wrench, wedge | rotation simultaneously for each roller 6.

With such a movement of the rollers 6, the length of the tape or wire loaded into the electrolyte of this Section and, consequently, of the effect of the electrolyte 1 on it on it at this course, is changed.

This will make it possible to change the mode of operation on the go, ai IB, if it is necessary, even to turn off certain lifting sections of roller 6 of the corresponding vain compartment above the electrolyte level. This is particularly useful for repairing individual areas of the bath, changing the electrolyte and, in particular, for filtering the electrolyte in separate compartments and removing it from the other areas.

For this, it is advisable to make the walls (b) of the filter material. Due to the tension of the tape. During its operation, produced by the traction take-up drum, and the additional tension created by the treading of a fixed contact roller 5 at the beginning of the 1P bath, rollers 6, rolled along the tape, seal the electrolytic deposited coating layer .

Moving the rollers 6, changing the total length of the tape immersed in the electrolyte, and therefore, the surface of its contact with the latter, also changes the current density, thereby regulating the overall mode of operation in the entire bath.

A similar device for vertical movement of the rollers can also be used in vanities I and II.

It is also possible to make the frames carrying the rollers 6 movable in the side gage as well, i.e. tilting them to the right or left in FIG. one.

The anode plates 8 of the mugut are suspended on a frame that carries rales 6, and then together with it they are lifted upward or the air line goes deeper into the electrolyte.

For better deposition of the metal layer, la on the tape, it is advisable to produce electrolyte mixing, preferably with the help of air by bubbling.

If the 1PO working conditions require a slight immersion of the wood into the electrolyte, it is possible to significantly reduce the total amount of electrolyte in the bath, lift the bottom rollers of 6 Bicex or in some compartments x, and fill the bottom with the last neutral ballast, thereby reducing the bath capacity .

The subject matter of the invention.

Claims (3)

1. Bathtub for continuous electroplating of metal tapes, wires, and so on. - and., Consisting of separate OFECEC, Supplied with outwardly protruding D1vum rollers and immersed in the electrolyte by a third roller, characterized by the fact that the roller of each compartment, mixed with electrolyte It is made mobile in height, with the possibility of adjusting the operating mode without stopping the bath. 2. Making the bath according to claim 1, characterized by the use of angular partitions, in order to isolate the chambers for placing the heating elements. 3. The shape of the bath according to claim 2, characterized in that the partitions are made of filter material. / 6 2 -Ш- S f 3 В 4 //nineteen/ figure 1 // / K W IG. 2 ;