Ultrasonic bright cleaning agent and preparation method for die-casting aluminum workpieces special for high-speed rail vehicles before anodic oxidation

Abstract

The invention discloses an ultrasonic brightness cleaning agent for a special die-casting aluminum workpiece for a high-speed rail before anodizing. The cleaning agent is composed of the following components by mass percent: 1-3% of potassium pyrophosphate, 1-3% of borax, 0.5-2.5% of sodium tripolyphosphate, 0.5-2.5% of sodium methasilicate pentahydrate, 1-5% of triethanolamine, 0.1-1.0% of active agent (QYL-20), 1-2% of AEO-9, 1-2% of Turkey red oil, 0.1-1.0% of nekal, 0.1-1.0% of JFC, 0.1-0.6% of defoaming agent and the balance of deionized water. The preparation method comprises the following steps of: firstly adding the deionized water in a stainless steel reaction kettle, starting an agitator with rotation speed of 60r / m, slowly adding the solid raw materials in the reaction kettle, agitating for at least 15 minutes after adding each raw material, then orderly and slowly adding the liquid raw materials in the reaction kettle, agitating for at least 10 minutes after adding each raw material, and continuously agitating until the solution becomes a light brown transparent liquid.

Description

technical field [0001] The invention relates to an ultrasonic cleaning agent for aluminum workpieces, especially one that can thoroughly remove dirt on the workpiece, ensure the cleanliness and brightness of the workpiece surface, and ultrasonically brighten the special die-casting aluminum workpieces for high-speed rail vehicles with a long service life before anodic oxidation. Cleaning agent and preparation method. Background technique [0002] Metal cleaning is to use corresponding process equipment and process conditions to remove the dirt on the surface of the metal product workpiece with a specific solution, so that the product meets the technical requirements of the design, such as ultrasonic cleaning, steam cleaning, high pressure cleaning, ozone-UV Cleaning, ion beam cleaning and plasma cleaning, etc. For example, the die-casting aluminum workpieces for high-speed rail vehicles need to be ultrasonically cleaned before anodizing. There are always two technical probl...

AI Technical Summary

Problems solved by technology

There are always two technical problems in the existing ultrasonic cleaning agent for the anodized front shell of die-casting aluminum workpieces dedicated to high-speed rail vehicles: one is that the surface brightness of the workpiece after cleaning does not meet the standard;