JPS58174599A - Apparatus for anodic oxidation treatment of metal foil comprising aluminum or alloy thereof - Google Patents

Abstract

PURPOSE:To make it possible to divert an anodic oxidation treatment apparatus to the treatment of a metal foil, in the treatment of a metal foil, in the anodic oxidation treatment apparatus for an Al plate material, by forming a specific aqueous solution layer on the metal foil in the vicinity of a current supply roll to prevent the fusing of the foil by a large current. CONSTITUTION:When an Al or Al alloy foil (a) is passed between a negatively charged cathode box 3 and a positively charged current supply roll 4, it is contacted with the roll 4 to be positively charged and subjected to anodic oxidation treatment in an electrolyte supplied from the box 3. In this case, to the supply side of the foil (a) of an electrolytic region, two sets of roller pairs 9a-9d through which the foil (a) is passed are provided so as to be parted at predetermined intervals in a moving direction and the roll 9a is formed into a current supply roll while the roll 9b-9d are formed of an insulating material. In addition, an aqueous solution layer (b) good in current passing property and having no contribution to anodic oxidation is formed on the foil (a) between the roll sets. By this mechanism, a current concentrated to the part of the foil (a) to be shortcircuitted to the box 3 when a current is passed through the roll 9a is dispersed on the foil (a) by the layer (b). Therefore, the fusing of the foil (a) can be prevented and an oxide film can be formed.

Description

[Detailed Description of the Invention] This fly starvation from Aluminum or Sophia sparrow to a certain sparrow II
The slowdown in sales of II and Yama's FIK is also leading to an uproar.

In 2015, along with the fourth tightening of the aluminum rim, the thin aluminum
＝Rum porcelain foil has attracted attention, and it is hoped that the technology will be developed as soon as possible in order to make use of it. After applying the anodic oxidation treatment to the material that it belongs to, the damage box, which is always used in the process, and the power supply roller, which is used in the process, are placed in the same position at a predetermined interval. Place IC.

In this box and the power supply roller run, the board material t - the name of the board is placed in a place where the power supply roller is touched, and the power supply roller is placed on the board material 1 at the time of passing through, so that the board material is overdrawn.
Also, it is well known that the electrolyte solution from the casting box is applied to the oxidation treatment of the cough plate.

Therefore, in order to prepare a lid noodle soup made of al<=lam or 70 soybean rice, it is said that the above-mentioned method and soup treatment are directly applied. However, it could not be used for other purposes due to the first type of salt production. It is necessary to form fl#I, but! II. A hoe for passing the metal foil through the Kamuya box and the electrically resistant roller in the processing apparatus described in 1.

When feeding from the gold 14WIK navy blue 1t loaf, the formation of a bulge KJ! However, if the current was too high, the gold J4 melted and no oxide film could be formed.

Specifically, the wall thickness of the button is 700 μm.
When using foil to form five oxide films on the sparrow sw1, when moving the gold Jll foil with two strokes, the r
It is necessary to apply a current density of llB'/i,z, and in order to satisfy this IL current W degree, it is necessary to flow about 2500 μm of current tILt- from the electric wire to the power supply roller; When a large current tItk is applied, the power supply box short-circuits from the power supply roller to the negative box, and the gold j14f11 is fused at the power supply roller position.

The present invention is based on trial and error.

By forming an aqueous solution layer on the gold JII foil of the JII foil that has good electrical conductivity and does not contribute to unification, it prevents the current from short-circuiting from the power supply roller to the cathode box. This made it possible to supply a large current without causing the metal foil to melt, thereby successfully anodizing the metal foil.

Hereinafter, the anodizing treatment apparatus according to the present invention will be explained based on one embodiment.

In the figure, (1) is a supply roller for metal foil (aJ) made of aluminum or its alloy, (2) is a take-up roller for the metal foil (a), and between each roller (1) and (2) is a supply roller ( 1
) A multi-cathode box (3
), and multiple feeding rollers (
4) are placed at predetermined intervals in a diagonal pattern, and medal boxes (
3) and the power feeding roller (4) to allow the metal rod w10 to pass therethrough as the roller (4) rotates.

Metal foil (a) when wet! By contacting the upper surface of the feeder foil (4), the metal foil (→) is charged as an anode, and the electrolyte is transferred from the box (3) to the metal foil (
By supplying the metal foil (a) to the electrolytic region between the box (3) and the power supply roller (4), the metal foil (a) is anodized.

Also, between each roller (1) (2), the winding roller (2)
) II K is the hole treatment lll1l (5
), and a metal part (-
The first and second showers (6) are arranged in the direction of movement of
(7) is installed, and after performing the above-mentioned boxing, the second shower (7) is used to wash the body again.

Also, 4 on the side of the shine 2 shower (7)! Taking roller (2
- is provided with a dryer (8). However, in the anodic oxidation treatment apparatus as described above, the metal foil (- supply row 5 (-) in the electrolysis area between the cathode box (3) and the power supply roller (4) 1) Among the upper and lower opposing rollers, the 10th roller (9a) located at the lower part 11 of the supply roller (1) Ill is used as the power supply roller, and the #1
The 20th-la (9b) facing the upper part of the 0-la (91) and the other 3rd and 40th-la (90) (9(1)) are made of fine material and constituted as a 10-la. Then, the first and -゛2
0-ra (9a) (911) and 3rd and 40th-ra (9a)
With the rotation of these rollers, the metal foil (~) is passed between the moving surfaces of the previous record 2 and the set 40-ra (9'i) (9'i). (→
A supply body that supplies a strong aqueous solution that has good electrical conductivity and contributes to positive and negative conversion is provided at the upper position, and by supplying the aqueous solution from the supply body (2), the metal foil (→ The purpose was to form an aqueous solution layer (b) in the process.

By forming an aqueous solution layer on the gold paper foil (a) in this way, when the 10th la (9a) K is energized,
The current concentrates on -S of the metal foil (a) and the roller (9a)
) to try to short-circuit from llll & box (3) to gold 1h foil (a3). It is possible to prevent the metal foil from fusing and blowing out.

In the above embodiment, the cathode box (3) and the power supply (9)
b) (90x9d) was installed, and the aqueous solution (b) was to be formed on this gold maple foil part, but this was because the metal foil (&) passed between the cathode box (3) and the power supply roller (4). do,
When an oxide film is formed on the metal foil (-), the film is easily stapled, so this was done as in the above embodiment.

However, the aqueous solution layer 1'b) Fi can also be formed in the I%#1 body in the critical box (8).

The aqueous solution NII(b) is formed using aqueous powder or the like, and especially when a caustic powder is used in the above embodiment, the metal foil (-) can be treated at the same time.

A receiver tank (B) is provided at the lower part of the supply body (T) to receive the aqueous solution supplied to the metal foil (SL).
I'm trying to get Klfi.

A receiving tank (2) and an ail (b) are also provided below the anode box (3) and the power feeder (4), and below the first and second showers (6) and (7), respectively. There is.

In the figure (to) is the metal ff provided at the power supply roller (4).
i (IL), the belt (to) is rotated at the same speed as each roller shown in the drawing, and the metal ffi (a
) to prevent wrinkles from forming.

Incidentally, instead of using a plurality of cathode boxes (3), only 16 long ones can be used.

The present invention is constructed as described above, and the metal foil (a)
When anodizing the first Jli! from the supply body (G),
40th-A (9a
Since a 1W water layer (b) is formed in a), then @
This prevents fusing due to a current short circuit from the 10-ra (9a) to the non-polar box (3).

In addition, one solution is supplied from the cathode box (3), and the metal foil (a) is placed between the box (3) and the power supply roller (4).
to form an oxide film on the metal foil (IL),
In this post-treatment tank (5), the gold M foil with an oxide film (
A) is obtained.

As explained above, in the anodizing treatment apparatus of the present invention, at least on the supply side of the metal foil in the electrolysis area between the cathode box and the power supply roller, an aqueous solution having good electrical conductivity and not contributing to anodization is applied onto the gold foil. By forming a layer, it is possible to prevent the current from short-circuiting from the power supply roller to the 151-pole box, thereby preventing the gold a foil from melting. was able to be supplied to the metal foil, and it became possible to quickly form an oxide film of the thickness required for use on the salmon metal foil.

[Brief explanation of the drawing]

The drawing is a float diagram of the t・karr#I polar oxidation treated scissors according to the present invention. (3) is 1m & box (4) is the power supply roller (=) is the metal foil) is the aqueous solution layer

Claims (1)

[Scope of Claims] A pII box that is electrically charged, a power supply roller that is energized, and a power supply roller that are arranged facing each other at a predetermined interval.
L. The box and the power supply roller are made to pass through a gold thread made of aluminum or its alloy, and the gold foil is brought into contact with the Konya roller during the flight of the pigeon. By electrifying the tank and supplying it to the turquoise liquid W1 from the terminal box a,
I went to Jinqiao City's hot springs, where I was planning to go to the #billionships. At least on the supply side of Kim JIWl in the dissolution of the area with I # 0 record box and # @ Laura, on the supply side of Kim JIWl. The pigeon IIL lamp has a bathing layer that does not give rise to the liao 1 ratio. ! The 4th post of the pot consisting of violet - Rikasho Shiro Einao.