JP2002332596A - Tool for anodic oxidation treatment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely hold materials to be treated in an electrolyte, to ensure the treatment of the materials to be treated uniformly over their entire surface without the unevenness and to extremely facilitate the exchange of the contact materials made of magnesium materials to be consumed. SOLUTION: In supporting the materials M to be treated which are made of magnesium or magnesium alloy materials to be subjected to anodic oxidation treatment within an electrolyte tank T for the anodic oxidation treatment, this tool has a supporting master column material 1 for supporting the material to be treated from outside the electrolyte tank T and immersing the same into the electrolyte tank T and supporting slave column materials 10 which are connected to this supporting master column material 1 and support the materials M to be treated. Contact materials 13 made of the magnesium material are disposed in areas in direct contact with the materials M to be treated. The supporting slave column materials 10 have forked legs 12 energized to a repulsive expansion tendency or closure tendency and freely attachably and detachably fit the contact materials 13 by means of screws to the ends of these legs 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to anodizing treatment of various materials made of a magnesium material or a magnesium alloy material in an electrolytic solution, and immersing the material in the electrolytic solution. Also, the present invention relates to a jig for anodizing treatment capable of reliably performing anodizing treatment without unevenness.

[0002]

2. Description of the Related Art In recent years, in consideration of weight reduction and strength, various products produced from magnesium alloy materials have come into large quantities. However, products made of magnesium alloy materials have a problem in corrosion resistance, etc., so in order to use them as products, appropriate surface treatment must be applied, but due to their properties,
Because it is impossible in principle to plate dissimilar metals,
At present it is painted. However, direct coating on a magnesium alloy material has a problem in adhesiveness. Therefore, prior to the coating process, a chemical conversion treatment or an anodic oxidation treatment is performed on the magnesium alloy material product.

[0003] The chemical conversion treatment has a problem that the process is complicated and the defect rate is high, whereas the anodic oxidation treatment has excellent corrosion resistance.
It is considered that this anodic oxidation treatment will be frequently used in the future because of good adhesion to coating.

In this anodic oxidation treatment, the metal to be treated is used as an anode to oxidize under appropriate electrolytic bath and electrolytic conditions to form an oxide film on the surface. The material to be treated is called so-called hook. It is immersed and held in the electrolytic solution by a hanging jig. The hooking jig itself is formed of a metal wire having appropriate strength and current-carrying capacity. For example, the hooking jig is configured by fixing a branch bone or a small bone (child bone) to a main bone (main rib) or a frame having excellent conductivity. The material to be processed is hooked and held on the ribs and the like.

[0005]

However, the following are required for such a hook jig. That is, the required current capacity and uniform current distribution to the material to be processed can be obtained, ease of handling such as removal and storage of the material to be processed and mounting and dismounting to and from the plating equipment, structure that can mount a large number of materials to be processed, Complete maintenance of the material to be processed during the plating process, non-precipitation of plating on unnecessary parts, strength and durability, contamination of the processing solution, and the amount of the processing solution pumped out of the material and the jig itself. They are reduced in number, easy to manufacture and repair, easy to count, and low in manufacturing costs. Moreover, when anodizing a material to be processed such as a magnesium material or a magnesium alloy material, the contact portion between the material to be processed and the jig itself must be a magnesium material, and the magnesium material portion of the jig itself must be Since it is consumed by the anodizing process, it is necessary that only the magnesium material portion has a replaceable structure.

However, in the conventional jig as described above,
These requirements are not sufficiently satisfied, and the material to be processed may separate from the jig itself during the processing, so that the anodizing treatment of the material to be processed cannot be performed, resulting in defective products. .

Accordingly, the present invention has been made in view of the above-mentioned various circumstances, and ensures that the material to be treated is securely held in the electrolytic solution, and that the material to be treated has no unevenness in the anodic oxidation treatment. An object of the present invention is to provide a jig for anodizing treatment that not only can perform a uniform treatment on the entire surface, but also can easily replace a contact material made of a magnesium material that is consumed.

[0008]

In order to achieve the above-mentioned object, according to the present invention, a magnesium or magnesium alloy material to be anodized in an electrolytic solution tank T for anodization is provided. It supports the processing material M, and is characterized in that a contact material 13 made of a magnesium material is disposed at a portion that directly contacts the processing material M.
More specifically, the supporting main column 1 supported from the outside of the electrolytic bath T and immersed in the electrolytic bath T, and the target M Supporting pillar 1
0 for an anodizing treatment, wherein a contact member 13 made of a magnesium material is disposed on a support pillar member 10 that directly contacts the material M to be treated. The support pillar 10 has a bifurcated leg 12 urged to resiliently open or close.
The contact material 13 can be configured to be detachably attached to two ends, and the contact material 13 can be attached to the leg 12 by screwing.

In the jig for anodizing treatment according to the present invention having the above-described structure, the material to be treated is urged by the elastic force of the legs 12 of the support pillar 10 to be expanded or closed. M is elastically supported, and a predetermined electrolyte tank T
The material to be processed M is immersed and supported in the electrolytic solution. Leg 12
When the material to be treated M is supported by the contacting material M, the contact material 13 made of magnesium material directly contacts the material to be treated M to smoothly perform the anodic oxidation treatment. Since the contact member 13 is freely used, the contact member 13 is easily removed, for example, when the contact member 13 is consumed, and the replacement is performed by, for example, screwing.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION In the following, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a suitable support material B in an electrolytic solution tank T for anodizing treatment. The support column is suspended from the electrolyte bath T by being hooked on the support column 1. The support column 1 is provided with one or more support columns 10 at appropriate height intervals, for example, by welding or the like. Are linked.

The supporting pillar 1 itself has a hook portion 2 which is bent at, for example, a substantially C-shape to be hooked on the supporting material B.
Is formed, and has a strength having a diameter that can sufficiently support a load or the like of the workpiece M to be suspended and supported,
For example, it is formed in a straight bar shape as shown. Naturally, the supporting pillar material 1 may be a T-shaped lantern fishing type viewed from the front, a frame type having a frame shape having a plurality of hooks 2, or the like, depending on the support mode of the material to be processed M to be supported. It may be formed as

The support post 10 is made of a resilient material, for example, a piano wire having an appropriate diameter, and is continuously integrated with a base 11 connected to the support main post 1 from the base 11.
It is formed as a whole with a leg 12 for supporting the material to be processed M, and the ends of the leg 12 are urged in a tendency to expand as shown in the figure or to close but not shown in the figure. Is what it is. The base portion 11 itself is formed to have an acute angle as shown in the drawing, or to have a rod shape of a predetermined length connecting the legs 12 at both ends (not shown). In addition, this support pillar material 1
Further, if necessary, the supporting pillar material 1 and the like are coated with a synthetic resin material such as polyethylene resin and vinyl chloride resin.

A rod-shaped contact member 13 made of magnesium material, which comes into direct contact with the material to be processed M, is detachably connected to the tip of the leg 12. The female screw formed at the rear end of the member 13 is detachably connected by screwing. Of course, the detachable means may adopt a slightly forcible fitting structure, an adhesive structure using an adhesive, or the like, instead of using screws as shown in the figure.

[0014] As shown in the figure, a bifurcated shape is formed by the legs 12 which tend to expand, and a contact member 13 having a diameter larger than that of the legs 12 is screwed to the tip of the legs 12 so as to form, for example, a pair as shown in the figure. The contact material 13 urged to spread and separate from the plate-shaped material to be processed M having the locking holes formed therein is inserted into and locked in the locking holes, thereby expanding the legs 12. The material to be processed M can be reliably supported by the action.

The shape of the support post 10 itself is not limited to a forked bifurcated shape which is urged to expand as shown in the figure.
Processing to be performed such as forming a bent portion bent outward or inward at the tip of the leg portion 12, making the leg portion 12 itself parallel or crossed, or being elastically urged to close. It can be formed in various forms corresponding to the shape of the material M and the like.

Next, an example of the use of this will be described.
As shown in FIG. 5, each of the support pillars 10 formed by being resiliently urged to expand in the support master pillar 1 is provided with a magnesium or magnesium alloy material to be anodized. M is elastically locked and supported. That is, after the contact material 13 of the support pillar 10 that is narrowed against the elastic force is inserted into the locking hole formed in the workpiece M, the narrowing action on the contact material 13 is released. The contact material 13 is restored by the resilience of the leg 12
The outer surface is brought into contact with the edge of the locking hole to be locked and supported. In this way, an appropriate number of materials to be processed M are locked and supported on the respective support pillars 10 and immersed in a predetermined electrolytic solution tank T as shown in FIG. Cathode member C made of
The anodizing treatment is performed by the electrolytic action between the steps.

When the contact material 13 is consumed and consumed, the contact material 13 is removed from the leg 12 and another new contact material 13 newly prepared is screwed or the like into the leg 1.
2 and use it.

In the case where the support pillar 10 is not of the resilient and expanding type as shown in the figure, but is of the resilient closing type or of another shape, for example, the cross type, etc. The material to be processed M is supported and processed by a use form corresponding to the shape and structure of the material.

[0019]

According to the present invention, the material to be treated M can be securely held in the electrolyte by the resilient action of the support pillar material 10 and the contact material 13 allows the material to be treated. By directly supporting the material M, not only can the anodizing process be performed without unevenness and the entire surface of the material to be processed M can be uniformly processed, but also the contact material 13 made of magnesium material can be replaced very easily. is there.

That is, in the present invention, when supporting the material to be treated M made of a magnesium material or a magnesium alloy material to be anodized in the electrolytic solution tank T for anodizing treatment, A supporting column material that is supported and immersed in the electrolytic solution tank; and a supporting column material that is connected to the supporting column material and supports the material to be processed. Support pillar 1 that is in direct contact with the treatment material M
This is because the contact material 13 made of a magnesium material is disposed at 0, thereby obtaining reliable support of the material to be treated M in the electrolytic solution, uniformity of the anodic oxidation treatment, easy replacement of the contact material 13, and the like. be able to.

Further, since the support pillar 10 has the bifurcated legs 12 which are urged to resiliently expand or close, the material M to be processed is elastically resilient. It can be supported spontaneously, and the material to be processed M does not come off or drop from the jig itself during immersion setting in the electrolytic solution tank T, removal after processing, etc. The material to be processed M can be reliably immersed and supported even in the electrolytic solution.

Since the contact material 13 which is in direct contact with the material to be treated M is made of magnesium material, the material to be treated M can be anodized very smoothly. By screwing another contact member 13, it can be easily replaced.

[Brief description of the drawings]

FIG. 1 is a partially exploded perspective view showing a state in which a workpiece to be anodized according to an embodiment of the present invention is supported.

FIG. 2 is a schematic side sectional view of the same during anodization treatment in an electrolytic solution tank.

FIG. 3 is a partially cutaway side view of the disassembled main part.

[Explanation of symbols]

 B: Support material C: Cathode member M: Material to be treated T: Electrolyte tank 1 ... Support column material 2 ... Hook portion 10 ... Support column material 11 ... Base 12 ... Leg 13 ... Contact material

Claims (4)

[Claims] 1. An anodizing jig for supporting a magnesium or magnesium alloy material to be anodized in an electrolytic bath for anodization, wherein the jig is directly applied to the material to be treated. A jig for anodizing treatment, wherein a contact member made of a magnesium material is disposed at a portion that contacts the surface. 2. A supporting column material supported from outside the electrolytic solution tank for anodic oxidation treatment and immersed in the electrolytic solution cell, and connected to the supporting column material to support the material to be processed. An anodizing jig for anodic oxidation comprising a support post and a support post directly in contact with the material to be processed, wherein a contact material made of a magnesium material is arranged. Jig for anodizing. 3. The support post has a bifurcated leg urged to resiliently expand or close, and a contact member is detachably attached to an end of the leg. Item 3. An anodizing jig according to Item 2. 4. The anodizing jig according to claim 3, wherein the contact material is attached to the leg by screwing.