How can titanium rods remove surface oil?

There are many methods for removing oil from the surface of titanium rods, such as using a brush to remove oil when the workpiece is too large and the coating or oil-free equipment needs to be treated locally. When using a brush to remove oil, it is possible to use a brush or cloth dipped in metal detergents such as lime slurry, magnesium oxide, cement, soap solution, tile ash, and vegetation ash. The surface active agent or cleaning powder can be brushed back and forth to completely remove the oil.

The drum degreasing process for titanium rod processing involves placing small parts with simple shapes, such as standard parts, together with wood chips, soap pods, and weakly alkaline solutions, into the drum, sealing them with a lid, and performing a rolling and degreasing process at a speed of 60-100r/mhi. Ultrasonic cleaning is the use of high-frequency sound waves above 16kHz, known as ultrasonic waves (exceeding the frequency perceived by the human ear), for cleaning and oil removal. When ultrasonic waves are emitted into a liquid, a pressure reduction is generated at a certain moment, followed by a compressive force, which is applied repeatedly. When reducing pressure occurs, a vacuum space will appear in the solution, and solution vapor (water vapor, degreaser vapor) and dissolved gases in the solution will enter the atmosphere to form bubbles. At the moment after the formation of bubbles, due to the action of compression force, the bubbles are crushed and scattered, resulting in shock waves. This shock wave can cause oil stains on the surface of the workpiece to detach from the workpiece. When bubbles break, they can generate high temperatures of thousands of degrees and a force of hundreds of thousands of kilopascals. Ultrasonic cleaning utilizes the destructive effect of shock waves on the oil film and the intense stirring effect caused by cavity phenomena. The sound pressure generated by the reflection of ultrasound also affects the reason for stirring the solution.

The ultrasonic generating device consists of an oscillator and a vibrator (referred to as a vibrator). There are two types of vibrators, namely the throwing type and the external attachment type. When using the throwing type, the vibrator should be placed in a very effective part of the slot. When the workpiece is small, a higher frequency is used, while when the workpiece is large, the frequency is lower, usually around 30kHz.

Ultrasound can be used for solvent degreasing, electrolytic degreasing, chemical degreasing, and pickling, greatly improving its 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 great shielding effect on Zhao Soundwave and a strong attenuation of strength; The mesh size is large and parts are prone to leakage. At this point, it is advisable to use a bottom irradiation method, which is to use a 0.1~0.4cm perforated thin plate as the bottom plate 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. For pure water, achieve optimal washing capacity at 501. For different compositions of degreasing liquids, experiments should be conducted to find the optimal temperature.