Surface-treated metal, surface treatment method of metal and metal and resin composite body
A surface treatment and metal technology, which is applied in the field of metal and resin composites, can solve the problems of large product size, reduce the bonding strength of aluminum alloy and resin, and fall off, so as to increase the contact probability, improve the connection strength, and enhance the bonding force Effect
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[0046] Example 1
[0047] Pre-treatment: Cut a commercially available 1mm thick 5052 aluminum alloy plate into 450mm*150mm rectangular pieces, put it in an acetone solution, ultrasonically clean for 15 minutes, and rinse with deionized water to obtain pre-treated aluminum Alloy sheet.
[0048] Multi-stage anodic oxidation treatment:
[0049] 1. Put the aluminum sheet with conventional surface pretreatment as the anode into the electrolytic cell for polishing. The electrolyte is a mixed solution of perchloric acid and ethanol with a volume ratio of 1:3, and electrolysis at a constant voltage of 40V for 3 minutes;
[0050] 2. Use the metal substrate as the anode in 0.8M oxalic acid solution, voltage 40V, temperature 50°C, treatment for 0.6h;
[0051] 3. The composition is 2% H 2 CrO 4 +10%H 3 PO 4 Soak in the chromium-phosphorus mixed acid solution for 25min, maintain the temperature at 50℃ during soaking, and then rinse with deionized water;
[0052] 4. Continue to use the metal substrat...
Example Embodiment
[0058] Example 2
[0059] Pre-treatment: Cut a commercially available 1mm thick 5052 aluminum alloy plate into 450mm*150mm rectangular pieces, put it in an acetone solution, ultrasonically clean for 15 minutes, and rinse with deionized water to obtain pre-treated aluminum Alloy sheet.
[0060] Multi-stage anodic oxidation treatment:
[0061] 1. Put the aluminum sheet with conventional surface pretreatment as the anode into the electrolytic cell for polishing. The electrolyte is a mixed solution of perchloric acid and ethanol with a volume ratio of 1:3, and electrolysis at a constant voltage of 40V for 3 minutes;
[0062] 2. Use the metal substrate as the anode in 0.8M oxalic acid solution, voltage 40V, temperature 50°C, treatment for 0.6h;
[0063] 3. The composition is 2% H 2 CrO 4 +10%H 3 PO 4 Soak in the chromium-phosphorus mixed acid solution for 25min, maintain the temperature at 50℃ during soaking, and then rinse with deionized water;
[0064] 4. Continue to use the metal substrat...
Example Embodiment
[0070] Example 3
[0071] Pre-treatment: Cut a commercially available 1mm thick 5052 aluminum alloy plate into 450mm*150mm rectangular pieces, put it in an acetone solution, ultrasonically clean for 15 minutes, and rinse with deionized water to obtain pre-treated aluminum Alloy sheet.
[0072] Multi-stage anodic oxidation treatment:
[0073] 1. Put the aluminum sheet with conventional surface pretreatment as the anode into the electrolytic cell for polishing. The electrolyte is a mixed solution of perchloric acid and ethanol with a volume ratio of 1:3, and electrolysis at a constant voltage of 40V for 3 minutes;
[0074] 2. Use the metal substrate as the anode in 0.8M oxalic acid solution, voltage 40V, temperature 50°C, treatment for 0.6h;
[0075] 3. The composition is 2% H 2 CrO 4 +10%H 3 PO 4 Soak in the chromium-phosphorus mixed acid solution for 25min, maintain the temperature at 50℃ during soaking, and then rinse with deionized water;
[0076] 4. Continue to use the metal substrat...
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