Smokeless mirror face chemical polishing solution

Abstract

The invention discloses a smokeless mirror face chemical polishing solution which is prepared from the following components in percentage by weight: 75-80% of phosphoric acid, 3-4% of sulfuric acid, 0.5-1% of a brightener, 0.8-1.2% of an oxidizing agent, 0.5-0.6% of a corrosion inhibitor, 0.1-0.3% of an accelerant, 0.05-0.07% of a catalyst and the balance of water. The smokeless mirror face chemical polishing solution in the polishing process does not generate any smoke, generates neither irritant nor potential toxic and harmful gas, and is free of environmental pollution. When the smokeless mirror face chemical polishing solution is used for polishing, the bright dipping speed is high, and the brightness value is nearly consistent with that of three-acid polishing. The smokeless mirror face chemical polishing solution is simple to operate, and in actual production, the relationship between temperature and time needs to be considered without considering other factors, so that the human cost of the manufacturer is lowered.

Description

technical field

[0001] The invention belongs to the technical field of chemical polishing, in particular to a smokeless mirror chemical polishing liquid. Background technique

[0002] The most widely used in the current chemical polishing of aluminum is the tri-acid polishing composed of phosphoric acid-sulfuric acid-nitric acid. The mass ratio of phosphoric acid-sulfuric acid-nitric acid is roughly 6:3:1, and the operating temperature is about 100°C. Because aluminum has a good decorative property after chemical polishing, it is widely used in home appliances, automobiles, bathrooms, doors and windows, electronics, accessories and other fields.

[0003] However, due to the strong oxidation, volatility, and instability of nitric acid when it is reduced, nitric acid has many potential safety hazards and hazards in transportation and filling, bath configuration, daily replenishment, heating, and production operations. Especially in the process of aluminum polishing, nit...