JPS62120499A - Plating method and its device - Google Patents

Abstract

PURPOSE:To simply and easily form the plated film of a uniform thickness on a cylindrical body by supplying electric current while rotating the body at prescribed rotational frequency. CONSTITUTION:A cylindrical body 8 to be plated is hung from a hanger 7 and immersed in a plating soln. 9 in a plating tank 10 and the rotation of a variable motor 1 is propagated to a shaft 5 attached to the hanger 7 through a belt 3 to rotate the body 8 in the plating soln. 9. Electric current is supplied between the anode 11 placed in the plating tank 10 and the rotating cylindrical body 8 as the cathode to electrodeposit metallic cations on the surface of the body 8. By this electrodeposition, the plated film of a uniform thickness is easily formed on the surface of the cylindrical body 8.

Description

[Detailed Description of the Invention] Field of Industrial Use] The present invention relates to a plating method and apparatus 1, and further details 1.
-7< relates to a plating method in which a cylindrical article is plated while the article is rotated at a predetermined number of rotations, and an apparatus in (a).

[Conventional Method J] Conventionally, when plating a cylindrical article,
Plating j! Various methods have been carried out taking into consideration the uniformity of the thickness and the like.

For example, methods include (2) increasing the total number of objects in the plating tank, and (b) changing the direction of the article during plating.

[Problems to be Solved by the Invention (2)] The following problems can be raised with the above-mentioned plating method.

That is, in addition to the method (7) above, the anodes in the in-plating tank are provided not only at the opposite electrodes of the article but also at the four corners.
Considering issues such as flow distribution, changing the shape of the anode,
It requires some thought in terms of arrangement, etc., and it is not something that can be done instantly, but requires years of experience and skill.

According to the method (2), the direction of the article is changed at regular intervals during plating.

・It is necessary to supervise the whole product until the plating is completed, and if the plating is done for a long time, it is extremely labor-intensive.

There were various technical problems that needed to be improved.

This invention was made to solve the above-mentioned technical problems, and the purpose of -f: is to uniformize the plating film thickness of a cylindrical article by a relatively simple method, and The purpose of the present invention is to provide a plating method and equipment that requires little labor.

[Means for solving problems]

The plating method and device according to the present invention are based on the following: After much effort and effort, it was discovered that the above objects can be achieved by keeping the anode fully facing the article while maintaining a required distance, and rotating the article. It has been completed.

That is, the method and apparatus for gluing a cylindrical article of the present invention involves hanging the cylindrical article vertically on a hook, immersing it in a plating bath, and rotating the cylindrical article while applying electricity. 1. [Action J] In this invention (G), a cylindrical article is energized and rotated while IG1 is plated in two rows, so that the plating is uniform and uniform. However, since the article is rotated by a rotating device, labor can be saved.

〔Example〕

In the following, this invention will be explained in detail using 11 actual examples.

No. 1 ν1 is a diagram showing a rotating device for a plated article of the present invention,
(11 is the variable motor, (2) is the mount that fully fixes the variable motor, (31 is the bell that connects the variable motor fi+ and the shaft (5) to give rotation to the article to be plated), +41 is the variable motor. Supporting sabot) + (51 is a shaft, (6) is not shown but is a lead wire connecting it to the cathode of the rectifier.

Figure 2 shows the rotating device operating in the plating solution.
(7) is a hook attached to the shaft (5) of the rotating device;
(81 is a cylindrical article to be plated, +91t, -) A plating liquid is placed in the convex part of the plating part Ql.

The IQ of the rectifier, which is not shown in the illustration, is one for the αυμ′ lead wire at the αυμ′ ton pole! connected to the pole.

Next, a method for plating a plated article using the apparatus according to the present invention will be explained.

Hooked on the shaft (5; in Fig. 1) (7) and the cylindrical broken-plated article (8), the plated article covered with gold attachment, prescribed pretreatment, base plating, and upper layer plating (81V should not be energized.
jI-)I The belt (3) connecting the shaft (5) and the variable motor (1) is used as a total medium, and the plating is performed while all the objects to be plated are rotated at a predetermined number of rotations.

[Effects of the Invention] According to the invention described above, it is possible to perform plating by applying a rotating metal to a cylindrical article to be plated, and to make the thickness of the plating film uniform. Since the process is also carried out using the rotating device V'c, labor is saved and the plating cost is also low.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the rotating device of the present invention, and FIG. 2 is a diagram showing the rotating device in operation in a plating solution. In the figure, (11 is a variable motor, (21 is a stand, (
3I is belt i41 is support + +51 is shaft,
(The force is hooked, (81 is a broken plating item? (9) Eye 1
[11] ij plating tank, (Iυ is electrode 1 t6+,
fi3 is a lead wire. ia;i! ! 1 112 figure

Claims (2)

[Claims] (1) A plating method for plating a cylindrical article, characterized in that the article is plated while the article is given a predetermined rotation by a motor while being energized. (2) a plating tank for accommodating articles to be plated;
A motor for rotating the article, a pedestal for supporting the motor, a shaft portion for attaching the article, a belt for transmitting the rotation of the motor to the shaft portion, and a support for connecting the shaft portion and the pedestal for supporting the motor. Characteristic plating equipment.