Processing technology for manufacturing antique brass through aluminum
A processing technology and technology of aluminum parts, applied in the field of processing technology for making antique copper from aluminum, can solve the problems of high copper price and scarce copper resources, achieve low price, facilitate popularization and use, and have good processing performance
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Embodiment 1
[0014] A processing technology for making antique copper from aluminum, comprising the following steps:
[0015] (1) Degrease the surface of the aluminum part and clean it with 5% dilute hydrochloric acid, then rinse it with water and dry it;
[0016] (2) Copper-plate the surface of the processed aluminum parts, the thickness of the coating is 1mm;
[0017] (3) Soak the above-mentioned aluminum parts in chemical potion for 5 minutes, carry out coloring treatment, and then rinse with clean water. The chemical potion includes K 2 S25g / L, HNO 3 30mL / L, potassium permanganate 10g / L, copper oxide 25g / L;
[0018] (4) Brushing the colored aluminum parts;
[0019] (5) The surface of the aluminum part is sprayed with varnish, and after drying, the finished product is obtained.
Embodiment 2
[0021] A processing technology for making antique copper from aluminum, comprising the following steps:
[0022] (1) Soak and clean the aluminum parts in hot soapy water, then polish them with sandpaper with a particle size of 10-20 μm, and finally soak them in 5% dilute hydrochloric acid for 3 minutes, take them out, rinse them with clean water, and dry them;
[0023] (2) Copper-plate the surface of the processed aluminum parts, the thickness of the coating is greater than 0.5mm, and the surface of the aluminum parts is covered with a thin layer of copper;
[0024] (3) Soak the above-mentioned treated aluminum parts in chemical potion for 8 minutes, perform coloring treatment, and then rinse with clean water. The chemical potion includes K 2 S26g / L, HNO 3 30mL / L, potassium permanganate 12g / L, copper oxide 18g / L, after soaking, the copper on the surface of the aluminum part is light black;
[0025] (4) Brush the colored aluminum parts to improve the brightness and texture of...
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