Deburring liquid for machining and preparing method of deburring liquid

Abstract

The invention discloses deburring liquid for machining and a preparing method of the deburring liquid, and belongs to the technical field of chemical deburring in metal machining. According to the technical scheme, the deburring liquid for machining is composed of raw materials including, by weight percent, 5% to 10% of corrosive fluosilicic acid, 10% to 20% of oxidizing agent concentrated nitric acid, 2% to 5% of acid modifier salicylic acid, 2% to 5% of brightener 1 polyethylene glycol 400 or / and polyethylene glycol 600, 2% to 5% of brightener 2 citric acid, 1% to 3% of surface active agent alkylphenol ethoxylates, 0.1% to 1% of corrosion remover hexamine and the balance deionized water. The invention further discloses the preparing method and a using method of the deburring liquid for machining. According to the method, no toxic and harmful substances such as heavy metal and nitrite are added, the double effects of deburring and polishing are achieved, a large amount of manpower and a large number of material resources are saved, due to the fact that an additive is reasonable in matching, the use effect is enhanced by two to three times, and the liquid is more economical and practical.

Description

technical field [0001] The invention belongs to the technical field of chemical deburring in metal processing, and in particular relates to a deburring liquid for mechanical processing and a preparation method thereof. Background technique [0002] The cutting parts, stamping parts, casting parts and drilling parts of metal accessories will inevitably produce burrs in the production process, which will affect the subsequent further processing, installation and use of accessories. During the cutting and grinding process, the burr points exist on the positioning base surface, causing the workpiece to be unable to be clamped, and the resulting point contact is easy to form burning spots, and the target surface cannot be processed completely, which seriously affects the accuracy of the workpiece; during the installation process, the burr It is easy to scratch the surface of workers and other workpieces; for some precision workpieces such as hydraulic pressure, pneumatic and filt...

AI Technical Summary

Problems solved by technology

[0005] However, the previous chemical deburring methods also have certain limitations: if the strong corrosive deburring liquid used is not well operated, the deburring may not be complete or the surface of the burr-free workpiece may be corroded, and some deburring liquids contain certain volatile acid or other corrosive gases, and some harmful gases will be generated during the deburring process, which will cause certain damage to the safety and health of the workers; during the deburring process, the reaction time and temperature control are difficult points, and the chemical reactions that occur during the deburring process The reaction is often an exothermic reaction, and the workpiece is prone to local overheating, resulting in substrate corrosion. If the temperature is too low and the burrs cannot be completely removed, the control is difficult; after the workpiece is soaked in the deburring solution, the workpiece will be rapidly corroded during the cleaning process; The process consumes a lot of water resources. The used deburring liquid will contain a large amount of pollutants such as heavy metal ions and surfactants. It is highly toxic and difficult to handle. Once leaked or illegally discharged, it will cause serious environmental pollution.