Surface dedusting treatment method for silicon-aluminum composite material coating

• Main Authors: MA ZILI, ZHAO YUEHONG, HAO XINXIANG, FAN JIANZHONG, XIAO XUETING, NIE JUNFENG, WEI SHAOHUA, LIU YANQIANG
• Format: Patent
• Language: Chinese; English
• Published: 08.05.2018
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY

The invention discloses a surface dedusting treatment method for silicon-aluminum composite material coating. The content of silicon in the silicon-aluminum composite material is 10-80%. The method sequentially comprises the following steps that 1, oil removal and clear water rinsing treatment are carried out on the prepared silicon-aluminum composite material; 2, the material is dipped into a strong acid solution to remove an aluminum alloy oxidation film, wherein the surface of the sample is provided with a black loose film layer; 3, the material is put into a dedusting solution of the silicon-aluminum composite material, wherein the temperature is room temperature, the material is taken out after 30 seconds, and washed by clear water, and the dedusting solution comprises 30-300 g/l of fluoride, 5-100 g/l of lactic acid, 10-300 g/l of oxalic acid, and 5-100 g/l of citric acid. According to the treatment method, a dust sticking film layer on the surface of the silicon-aluminum composite material can be quick