Aluminum alloy polishing solution

The invention discloses an aluminum alloy polishing solution. The aluminum alloy polishing solution comprises the following components in parts by mass: 500 parts of phosphoric acid, 100 parts of concentrated sulfuric acid, 8 parts of sodium nitrate, 200 parts of glycerin, 10 parts of ethylene glycol, and 10 parts of surfactant. The aluminum alloy polishing solution is capable of effectively preventing the workpiece surface from mass pits, and removing scratch caused by mechanical polishing. 本发明公开种铝合金抛光液，按质量份数计包括以下组分：500份的磷酸、100份的浓硫酸、8份的硝酸钠、200份的丙三醇、10份的乙二醇、10份的表面活性剂。该铝合金抛光液，能够有效的防止工件表面产生大量麻点，除去由于机械抛光产生的划痕。