DE1808807C3 - Cathode elements for a treatment drum immersed in an electrolytic bath - Google Patents

Description

of the metal approach to drum perforation favored The invention is to be based on an execution, whereby an example of an approximation will be explained in more detail if there is insufficient control. In the sign the continuous electroplating process shows:

F i g, which has a negative impact on drum lines. 1 a cathode element in section, in verse

or inhibitory growth of the metal approach to binding with the drum and the connection of the

and enters the drum perforation. When the power supply is switched off,

F i g. 2 the top view of a schematically shown end face of the drum circumferentially and rearwardly

were part of a galvanizing drum line, spe- cathode disk 3, with the over the outer

target with regard to the reuse of the diameter of the Katedenscheibe 3 overlapping

Cathode element detached metal disks as anode. Edge part 4 α of the circumferential coating with a

According to the section through a drum 1 to 5 slope Ξ> 45 ° is provided, which causes the at

The electrolytic treatment of workpieces is an unavoidable cathodic approach during electrolysis

if this is made of plastic with a closed, plate-like structure in a known manner

see breakthroughs in the lateral surface. Which lets arise. The cathode disk casing

Drum 1 is attached to suspensions 14 in a specially developed mold

that it is made in the electronics located in a container 13 so that the cable can be properly assembled

trolytic bath is immersed without guaranteeing an annual element 3,4,5 and a certain

the rotational mobility and thus the elasticity necessary for the detachment of the structure.

The filling material enters at each of the two cities of the edge part 4 α of the cathode disk jacket 4

inner end faces of the drum 1 is a cathode is achieved.

element 3, 4, S by means of screw connections 8, 9 15 From FIG. 2 is the position of several, in which elec-

fastened in such a way that the axially centered trunnion 5 is placed in a trolyte container 13 in a drum

the connected from the outside to the front, from my 1 with their Stromarmpaaren 2 can be seen, the

a current arm 2 encased by an insulating tube 10, each attached separately to the suspension 14

protrudes and by means of the barrel sleeve 6 are under. In the electrolyte container 13 is also the other

Earth a compression spring 7 a rotatable ao location and technology-related number of anodes

Storage experiences. arranged, which can be selected from the commercially available

Each cathode element 3, 4, 5 consists of the borrowed plate anodes 12 or the with the help of the cable

cathode tode element 3, 4, 5 obtained preferably from sheet steel

washer 3, the cathode-like metal attachments 11 serving as a potting body or both made of han-

disk jacket 4 and the journal 5 together. 35 the usual plate anodes 12 as well as metal

The cathode disk jacket 4 surrounds with respect to the sets 11 results.

1 sheet of drawings

Claims (2)

change of the plates or disks as well as in the case of a lot 1. Cathode elements for one in an electro-drum body with subsequent repair the Lytic bath immersion, treatment of 5 sequence. This deficiency affects the trom workpieces Serving drum, which either fails due to repairs or has end walls on the mel the drum must be fixed on the inside. and on the outside of isolated current arms, the object of the invention is to be closed, each cathode element to eliminate the disadvantages and a cathode element to the drum end wall of a cathode io create that the structure of the metal attachment on the element superior in diameter Cathode-cathode disc as a disc jacket made of non-conductive material, which can be removed without difficulty, is compact and lossless as covered without any post-treatment, thus being marked, disc that can be used for anodes is guaranteed,
According to the invention, this is achieved in that each cathode element consists of a thin cathode disk (3) and that the cathode element consists of a thin cathode disk jacket, the cathode disk is bead-like and that the cathode disk jacket overlaps the cathode disk and the bead-like bead overlaps the cathode disk overlaps and the edge part (4a) is provided on its outer edge with an overlapping bead-like edge part on its outer bevel of 45 ° or greater. edge with a slope of 45 ° or greater 2. cathode elements according to claim 1, characterized in that 20 can be seen. An advantageous embodiment is that characterized in that the cathode disk (3) from that the cathode disk is made of sheet steel inferior Steel sheet is made of inferior quality. Quality exists. A particular advantage of the solution according to the invention is that the cathode 15 element-building cathodic metal approach depending on a certain term to a Forms disc-like metal plate, which is lossless in shape and size as an anode in place or The invention relates to training and arrangement in addition to the known anode disks in the eleknung from cathode elements for galvanic loading 3 ° trolytic bath can be introduced. Through this Handling of workpieces in drum machines, which is possible, the otherwise unavoidable and best on the front attached, rotatable with insulated power supply metal attachment that is still scrap value poor connected, fully recovered in one for metallic waste reuse as anode, immerse certain electrolytes. This type of disc cathode also allows a In devices of this type, it is customary for the metal attachment to be removed easily and effortlessly known disc cathode system for relatively simple tools. These recovered place bulky and easily deformable workpieces in metal discs of a high degree of purity, especially when using isolated oils a full-fledged oil without any after-treatment Cable ends attached sliding contacts a mass-usable anode material especially for mass electroplating not possible. According to this, 40 electroplating devices are presented. A loss of anode metal, also the formation of the galvanizing drum, where the co-deposition to the otherwise usual taking into account the expediency and the cathodic current transmission elements within Efficiency between several of the known electroplating drums could never be avoided th cathode transmission systems can be selected due to the special construction of this kaiode. In certain cases, disk elements are no longer found, so that the anode metal or plate cathode application, which is usually almost completely recovered and in the are attached to the front in the drums. The post-practice as anode material in the usual apportionment this device is that the can be used on suspension. Another advantage The metal attachment building up the plates is to be assessed indefinitely that the maintenance of the drum waxes and thereby reduced to a low level on the galvanizing drum 5 ° galvanizing equipment can be extended, so that this process becomes a permanent one and a considerable time-saving to inventory control must be subject to. In a known front is. direction (US-PS 2,673,076) is the cathode disk The invention on a disk made of non-conductive material, so that a moderate solution even with the precious metal bulk electroplating the back of the cathode disk in front of a metallization in small and small drum devices, where approach is protected. sometimes very expensive precious metals on the electroplating The disadvantage of this device is that the edge is well deposited. The cathode the cathode disk is exposed *. Due to the fragments detached from the plate contact points, and slices strongly occurring peak effect of the under carefully collected and appropriate electric current, especially at corners and 60 treatments. Here too is Edges, with the inevitably connected higher due to the new design, a considerable benefit Itrom density at these points will demonstrate the growth.