Surface treatment aluminum alloy material and conjugant using the alloy material
A surface treatment, aluminum alloy technology, applied in the direction of metal material coating process, superimposed layer plating, coating, etc., can solve the problems of interface peeling and bonding strength decline, production efficiency deterioration, long time and other problems, to reduce Excellent effect of surface hydration and bonding strength
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[0035] Hereinafter, the present invention will be described in detail based on examples. However, the present invention is not limited by the examples, and modifications and implementations within the range not departing from the purpose before and after are included in the technical scope of the present invention.
[0036] First, the test method using the experimental example will be described below.
[0037] (Measurement method of surface hydration amount)
[0038] The surface hydration amount of the produced surface-treated aluminum alloy material was measured under the following conditions. In addition, the determination of the hydration amount is for the products that are not exposed to the wet state and stored within 2 hours after the production of the surface-treated aluminum alloy material, and the produced surface-treated aluminum alloy material is stored at 50°C and 95RH%. The product was measured after being placed in a humid atmosphere for 7 days.
[0039] Devic...
experiment example 1～4
[0048] (Production of aluminum alloy base material)
[0049] An alloy sheet having a length of 100 mm and a width of 25 mm was cut out from a JIS 6000 series 6022 aluminum alloy cold-rolled sheet having a thickness of 1.0 mm. Next, the alloy flakes were dipped in hexane to remove oil remaining on the surface of the alloy flakes to produce an aluminum alloy substrate.
[0050] (Preparation of Phosphate-Based Titanium Dioxide Compound Aqueous Solution)
[0051] 5 ml of titanium tetrachloride was mixed with a mixture of 25 ml of isopropanol and 25 ml of purified water while stirring, and diluted 100 times with purified water. 5 ml of an 85% by mass nitric acid aqueous solution was added thereto to prepare a phosphate-based titanium dioxide compound aqueous solution. The resulting titanium dioxide phosphate compound is presumed to be Ti(OH) x (PO 4 ) y (H PO 4 ) z (H 2 PO 4 ) l (OCH(CH 3 ) 2 ) m or its condensed composition.
[0052] Since the prepared phosphoric aci...
experiment example 5～6
[0057] Instead of the surface-treated aluminum alloy materials used in Experimental Examples 1 to 4, the above-mentioned aluminum alloy substrate (Experimental Example 5) was used, or the aluminum alloy substrate was pickled with nitric acid to remove the oxide film on the surface. The alloy substrate (Experimental Example 6) was the same as Experimental Example 1 except that the surface hydration amount and coagulation failure rate were measured. The results are shown in Table 1.
[0058] Table 1
[0059]
[0060] From the comparison of Experimental Examples 1 to 4 and Experimental Example 5, it can be seen that the surface-treated aluminum alloy materials (Experimental Examples 1 to 4) with a phosphate-based titanium dioxide-based coating on the surface are compared with the aluminum alloy material without the coating (Experimental Example 5). , the coagulation failure rate is high, and therefore, the bonding durability is excellent. In addition, from the comparison of ...
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