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Surface oil removal method for titanium standard parts!
The oil stains on the surface of titanium standard parts can affect their normal use, so they will be cleaned regularly. Titanium standard parts will be processed smoother during processing, which is beneficial for later cleaning. Below, we will introduce the method of removing oil from the surface of titanium standard parts.
There are many methods for removing oil stains on the surface of titanium standard parts, such as when the workpiece is too large or local surface treatment is carried out, simple brushing can be used to remove oil. When brushing to remove oil, use a brush or cloth dipped in cleaning powder such as lime slurry, magnesium oxide, cement, soap solution, and tile ash to brush back and forth. Special metal cleaning agents can also be used to remove oil. Sometimes, after brushing once, apply the oil remover and then wipe again. This can be repeated several times to completely remove oil.
Drum degreasing is the process of placing small parts with simple shapes, such as standard parts, together with wood chips, soap pods, and weakly alkaline solutions, into the drum, sealing it with a lid, and cleaning and degreasing. When ultrasonic waves are emitted into a liquid, there is an instant of pressure reduction, followed by an instant of compression force. This repeated action causes the bubbles to burst and scatter due to the compression force, resulting in shock waves. This shock wave can cause oil stains on the surface of the workpiece to detach from the workpiece, and when the bubbles break, it can generate a height of thousands of degrees and a pressure of hundreds of thousands of kilopascals.
Ultrasonic waves can be used for solvent oil removal, electrolytic oil removal, chemical oil removal, and acid washing, greatly improving their efficiency. Its disadvantage is that it propagates in a straight line, making it difficult to reach the obscured part. Therefore, the workpiece should rotate or flip inside the groove. When using a net basket for oil removal, the mesh size is small, which has a strong shielding effect on ultrasonic waves and a strong attenuation of strength; The mesh is large and prone to missing parts. At this time, it is advisable to use bottom irradiation to allow ultrasonic waves to pass through the bottom plate and reach the workpiece. When the temperature is too high, too many bubbles are generated, which actually hinders the propagation of ultrasonic waves.
The suspended particles in the solution vibrate under the action of ultrasonic waves, which will produce coagulation. On the one hand, it is beneficial for degreasing, but on the other hand, it is easy for pollutants to reattach to the surface of the workpiece. So it is best to use continuous filtration equipment with oil absorbing substances for solution filtration. High oil removal concentration can affect the propagation of ultrasound and reduce its effectiveness. Therefore, it is necessary to determine the optimal concentration and ratio through experiments.
The above is the method for removing oil from titanium standard parts.