JPS6026134Y2 - Anode support for radial cell type electroplating equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of an anode support for a radial cell type electroplating device.

This type of conventional anode support has a structure as illustrated in FIG. 1, in which 1 is a copper busbar connection, 2 is a graphite body, and 3 is a plug.

The disadvantages of this anode support are as follows.

(1) The copper busbar connection part 1 and the graphite main body 2 are shrink-fitted (cold fit), which is difficult to manufacture.

(2) The graphite main body 2 is a one-piece piece (usually 450 x 45
0 x 2100m) and is extremely difficult to manufacture.
It is not available on the general market and is expensive.

(3) Since the graphite main body 2 is a one-piece body, local repair cannot be performed for partial wear caused by sliding with the anode.

In addition, as shown in Fig. 2, there is also an anode support in which a wear plate 5 made of graphite or a similar conductive material is removably attached with an insulating bolt 6 to the current-carrying surface of the graphite body 4 that is in contact with the back surface of the support side of the anode of the anode support. .

(See Japanese Patent Application No. 57-32206). The disadvantages of this structure are as follows.

(1) It is difficult to maintain a uniform contact surface between the graphite body 4 and the wear plate 5, which increases electrical contact resistance and may cause melting damage.

(2) A large number of bolts are required to maintain a uniform contact surface.

(3) If a large number of bolts are used, the entire graphite becomes structurally weak.

In view of the above-mentioned circumstances, the present invention facilitates manufacturing by assembling the copper busbar connection part and the graphite body by bolting the graphite body divided into small pieces instead of using shrink fitting as in the conventional method. west,
The aim is to reduce manufacturing costs by using small graphite materials.

Furthermore, by assembling the graphite body, the anode can slide.

The purpose of the present invention is to provide a structure of an anode support that allows easy repair of the wear of the graphite current-carrying surface caused by this.

Hereinafter, the anode support for a radial cell type electroplating apparatus according to the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

In view of the above-mentioned circumstances, the present invention is constructed as shown in FIG. 3.

That is, the graphite body is divided into appropriate sizes, preferably axially symmetrically and at equal intervals, as shown by the axial dividing line 8 and the transverse dividing line 9. These divided bodies 7 are divided in the axial and transverse directions. The copper tube is fastened to the busbar connection 1 by tightening members 10 and 11 such as bolts and nuts, respectively.

FIG. 4 shows an example of the divided shape of the graphite main body in a cross section taken along the line TV-IV in FIG. 3.

In Fig. 4a, the axial dividing line 8 of the graphite main body divided body 7 is a symmetrical line parallel to the sides, and holes 12.1 are formed on the opposite sides.
3, and tightening members 11 are attached to these holes.

In Fig. 4b, the axial dividing line 8 of the graphite main body divided body 7 is set as a diagonal line, and the cut holes 14 and
15, and the tightening members 11 are attached to these cut holes.

In both figures, 10 is a member for tightening the graphite body 7 in the axial direction.

As described above, when the graphite main body is composed of the divided bodies 7, preferably divided bodies having the same shape, the joining surfaces between the divided bodies of the graphite body and between the divided bodies and the bus bar connection part of the copper tube,
In order to reduce the voltage drop during electroplating, it is preferable to apply a conductive paste.

Further, members such as bolts and nuts used for tightening the graphite body are preferably made of a material such as Ti, and the plug 3 may be the same as a conventional one.

It is preferable to insert a gasket between the divided bodies of the graphite body to prevent liquid from entering.

As is clear from the above description, the anode support of the present invention provides many advantages as described below.

(1) By dividing the graphite main body, which was an expensive and difficult-to-obtain unit, in the axial direction and the transverse direction, preferably symmetrically and at equal intervals, it is composed of divided bodies of similar shapes. In addition to being inexpensive and having uniform density, it is also possible to locally repair local wear.

(2) Voltage drop can be reduced by applying conductive paste to the joint surfaces between the divided bodies and between the divided bodies and the copper tube.

[Brief explanation of the drawing]

1 and 2 are a partial sectional view and a perspective view, respectively, showing a conventional configuration example, FIG. 3 is a partial sectional side view of the anode support of the present invention, and FIG. 4 is taken along the line IV-IV in FIG. 3. FIG. Explanation of symbols, 1...Busbar connection part, 2, 4.
...Graphite body, 3...Plug, 5...
...Wear plate, 6...Insulation bolt, 7
...Graphite main body division body, 8.9 ... Partition line, 10, 11 ... Tightening member, 12.13 ...
...hole, 14,15... cut hole.

Claims (3)

[Scope of utility model registration request] (1) In an anode support for a radial cell type electroplating device comprising a graphite body and a busbar attached to the graphite body in the axial direction, the graphite body is divided at at least one point or more in the axial direction and the transverse direction. An anode support for a radial cell type electroplating device characterized by being composed of divided bodies. (2) The anode support according to claim 1, which is a registered utility model, and is constructed by dividing the graphite body symmetrically in the axial direction and at equal intervals in the transverse direction. (3) The anode support according to claim 1 or 2, wherein a conductive paste is applied to the joint surfaces between the divided graphite main bodies and between the divided bodies and the bus bar. .