Protection tool for anodic oxidation

Abstract

The utility model provides a protection tool for anodizing, which comprises a plurality of shielding assemblies matched with a non-anodizing area, each shielding assembly comprises a first shielding piece, a second shielding piece and a third shielding piece, and the two sides of each of the first shielding piece, the second shielding piece and the third shielding piece are respectively provided with a concave part along the length direction. And circular transition parts are formed at two ends of the first shielding piece, the second shielding piece and the third shielding piece. The first shielding piece, the second shielding piece and the third shielding piece are designed into structures with narrow lower parts and wide upper parts, so that the silica gel plug can be more conveniently plugged into a product groove, and leakage caused by the fact that the U-shaped silica gel plug cannot be clamped in a position and is ejected out by air pressure in the oxidation process is avoided; and the middle parts of the inner sides and the outer sides of the first shielding piece, the second shielding piece and the third shielding piece are sunken to form sunken parts, so that the phenomenon that air bubbles generated at the junction edge of the oxide layer and the protection area cannot overflow to generate airflow marks is avoided, and the quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of protective work tools, and particularly relates to a protective work tool for anodic oxidation. Background Art

[0002] After anodic oxidation treatment, the corrosion resistance, hardness, wear resistance, insulation, heat resistance, etc. of metals can be greatly improved, and it is widely used in the aviation field. Oxidation in products is mainly carried out on specific areas of the products, and the rest of the positions need to be protected. If traditional protection methods are used, insulating protection tapes or acid and alkali resistant adhesives need to be used to protect the non-oxidized areas. The protection process is complex, takes a long time, and it is difficult to ensure that there will be no oxidation leakage phenomenon. Therefore, it is necessary to design a new anodic oxidation protection work tool to shield the non-oxidized layer areas. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies existing in the prior art, and provides a protective work tool for anodic oxidation, which can meet the requirements of the anodic oxidation layer in the specified area, and the anodic oxidation layer is visually smooth, continuous and uniform.

[0004] To achieve the above technical purposes, the technical solution adopted by the utility model is:

[0005] A protective work tool for anodic oxidation, which includes multiple shielding components that cooperate with non-anodic oxidation areas. The shielding components include a first shielding piece, a second shielding piece and a third shielding piece. Concave portions are arranged along the length direction in the middle parts on both sides of the first shielding piece, the second shielding piece and the third shielding piece. Circular transition portions are formed at both ends of the first shielding piece, the second shielding piece and the third shielding piece.

[0006] Preferably, for the protective work tool for anodic oxidation, the shape formed by combining the first shielding piece, the second shielding piece and the third shielding piece is circular.

[0007] Preferably, for the protective work tool for anodic oxidation, the shapes of the first shielding piece, the second shielding piece and the third shielding piece are arc-shaped.

[0008] Preferably, for the protective work tool for anodic oxidation, the concave portions longitudinally extend on the arc surfaces of the first shielding piece, the second shielding piece and the third shielding piece, and the concave depth of the concave portions is 7-11 mm.

[0009] Preferably, for the protective work tool for anodic oxidation, the first shielding piece and the second shielding piece are mirror-symmetrical about the central axis of the shielding component. The first shielding piece and the second shielding piece are distributed on one side of the central axis of the shielding component, and the third shielding piece is distributed on the other side of the central axis of the shielding component.

[0010] Preferably, in the protective tooling for anodizing, the widths of the first shielding member, the second shielding member, and the third shielding member decrease sequentially from the upper surface to the lower surface.

[0011] Preferably, in the protective tool for anodizing, two sides of the recessed portion form inclined surfaces, and the inclination of the inclined surfaces is 40-50°.

[0012] The beneficial effects of the technical solution provided by the embodiment of the utility model are:

[0013] (1) The protective tooling for anodizing of the present invention, the first shielding part, the second shielding part and the third shielding part can completely shield the non-anodized area, meeting the anodizing requirements of the area specified in the drawing; the first shielding part, the second shielding part and the third shielding part are designed with a narrow bottom and wide top structure to make it easier to insert the silicone plug into the product groove, avoiding the U-shaped silicone plug being unable to be stuck in place and being pushed out by air pressure during the oxidation process, causing leakage; the middle parts of both sides of the first shielding part, the second shielding part and the third shielding part are formed with a recessed part along the length direction, avoiding the phenomenon that bubbles generated at the edge of the junction of the oxide layer and the protection zone cannot overflow and produce air flow marks, thereby improving the quality.

[0014] (2) Compared with traditional masking tools, the protective tooling for anodizing of the present invention has the characteristics of high operating efficiency, wide applicability and good product quality. Therefore, the products produced by using this anodizing masking tooling have an anodizing layer in the designated area of the product, a uniform film layer, and no burrs or flash on the edges. The anodized products meet the design requirements and quality requirements of the drawings and are widely promoted in the processing of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the protective tooling for anodizing of the present invention.

[0016] Figure 2 for Figure 1 AA local schematic diagram.

[0017] Figure 3 This is a schematic diagram of the protective tooling for anodizing of the present invention used in an anodizing process.

[0018] Figure 4 This is a three-dimensional diagram of the protective tooling for anodizing of the present invention. DETAILED DESCRIPTION

[0019] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "inside, outside", "up, down", "front, back", etc. are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] like Figures 1-4 A protective tooling for anodizing, comprising a plurality of shielding components matched with a non-anodized area, wherein the shielding component comprises a first shielding member 1, a second shielding member 2 and a third shielding member 3, and recessed portions 4 are provided at the middle portions on both sides of the first shielding member 1, the second shielding member 2 and the third shielding member 3 along the length direction, and circular transition portions 5 are formed at both ends of the first shielding member 1, the second shielding member 2 and the third shielding member 3.

[0022] The combined shape of the first shielding member 1, the second shielding member 2 and the third shielding member 3 is circular; the shape of the first shielding member 1, the second shielding member 2 and the third shielding member 3 is arc-shaped, and the depth of the recessed portion 4 is 7-11 mm; the recessed portion 4 extends longitudinally on the arc surfaces of the first shielding member 1, the second shielding member 2 and the third shielding member 3; the first shielding member 1 and the second shielding member 2 are mirror-symmetrical about the central axis of the shielding assembly, the first shielding member 1 and the second shielding member 2 are distributed on one side of the central axis of the shielding assembly, and the third shielding member 3 is distributed on the other side of the central axis of the shielding assembly; the width from the upper surface to the lower surface of the first shielding member 1, the second shielding member 2 and the third shielding member 3 decreases successively, and a slope is formed on both sides of the recessed portion, and the slope of the slope is 40-50°.

[0023] The protective tooling is used to shield the non-anodized area of the product. The recessed portion 4 is used to prevent bubbles generated at the junction edge from overflowing and causing airflow marks. The top ends of the first shielding member 1, the second shielding member 11 and the third shielding member 3 are used to apply pressure to facilitate shielding the non-anodized area of the product. The circular transition at the bottom facilitates shielding the non-anodized area of the product.

[0024] How to use the protective tooling for anodizing:

[0025] 1. Use protective tooling to protect the non-anodized area of the product. The installation method should be as follows: Figure 3, insert the protective tooling into the groove of the product protection area, Figure 3 The position of the middle groove that needs to be protected is 6;

[0026] 2. Ultrasonic degreasing cleaning of the product, time 5-10 minutes, temperature 55-65 ° C;

[0027] 3. Rinse twice in running cold water, 1-3 minutes each time;

[0028] 4. Check the water film, the water film should be kept for at least 30 seconds;

[0029] 5. Deoxidize with 200-300 g / l HNO3 for 0.5-1.5 minutes at room temperature;

[0030] 6. Rinse twice in running deionized water for 1-3 minutes each time;

[0031] 7. Check the water film, the water film should be kept for at least 30 seconds;

[0032] 8. With the product as the anode and the lead rod as the cathode, plate the anodic oxide layer in a hard anodizing tank. The current ramp-up time is 10-20 minutes, maintained for 30-40 minutes, at a temperature of -5-5°C, a current of 2-2.5A / dm2 per piece, and a H2SO4 concentration of 200-250g / l in the solution.

[0033] 9. Rinse in running deionized water 3 times, 1-3 minutes each time;

[0034] 10. Hang the product down;

[0035] 11. Remove protective tooling;

[0036] 12. Rinse in running deionized water twice, 1-3 minutes each time;

[0037] 13. Use an air gun to blow dry the product;

[0038] 14. Visually inspect the appearance of the anodized layer to ensure it is consistent, uniform, and free of burrs and flash. At the same time, check that the thickness of the anodized layer meets the requirements of the drawing specifications.

[0039] The first shielding part, the second shielding part and the third shielding part can completely shield the non-anodized area to meet the anodizing requirements of the area specified in the drawing; the first shielding part, the second shielding part and the third shielding part are designed with a narrow bottom and wide top structure to make it easier to insert the silicone plug into the product groove, so as to avoid the U-shaped silicone plug being unable to be stuck in place and being pushed out by air pressure during the oxidation process, causing leakage; the middle parts of both sides of the first shielding part, the second shielding part and the third shielding part are concave to form a recessed part design, which avoids the bubbles generated at the edge of the junction of the oxide layer and the protection zone from overflowing, resulting in airflow marks, thereby improving quality.

[0040] Compared with traditional masking tools, the protective tooling of the utility model has the characteristics of high operating efficiency, wide applicability and good product quality. Therefore, the products produced using this anodizing masking tooling have a uniform anodized layer in the designated area of the product, and no burrs or flash on the edges. The anodized products meet the design requirements and quality requirements of the drawings and are widely promoted in the processing of similar products.

[0041] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to examples, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A protective tooling for anodic oxidation, characterized in that It includes a shielding assembly that cooperates with multiple sheets and non-anodized areas. The shielding assembly includes a first shielding member (1), a second shielding member (2), and a third shielding member (3). Concave portions (4) are provided in the middle of both sides of the first shielding member (1), the second shielding member (2), and the third shielding member (3) along the length direction. Circular transition portions (5) are formed at both ends of the first shielding member (1), the second shielding member (2), and the third shielding member (3).

2. The protective tooling for anodic oxidation according to claim 1, characterized in that, The combined shape of the first shielding member (1), the second shielding member (2), and the third shielding member (3) is circular.

3. The protective tooling for anodic oxidation according to claim 1, characterized in that, The shapes of the first shielding member (1), the second shielding member (2), and the third shielding member (3) are arc-shaped.

4. The protective tooling for anodic oxidation according to claim 2, characterized in that, The first shielding member (1) and the second shielding member (2) are mirror-symmetrical about the central axis of the shielding assembly. The first shielding member (1) and the second shielding member (2) are distributed on one side of the central axis of the shielding assembly, and the third shielding member (3) is distributed on the other side of the central axis of the shielding assembly.

5. The protective tooling for anodic oxidation according to claim 3, characterized in that, The concave portion (4) extends longitudinally on the arc surfaces of the first shielding member (1), the second shielding member (2), and the third shielding member (3). The depth of the concave portion (4) is 7 - 11 mm.

6. The protective tooling for anodic oxidation according to claim 2, characterized in that, The widths of the upper surfaces to the lower surfaces of the first shielding member (1), the second shielding member (2), and the third shielding member (3) decrease in sequence.

7. The protective tooling for anodic oxidation according to claim 2, characterized in that, Both sides of the concave portion (4) form inclined surfaces, and the slope of the inclined surfaces is 40 - 50°.

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