OKエンジニアリング Company Profile

The loop flow microbubble generation nozzle, application number 2008-034846, was granted a patent on May 15, 2012, and the patent registration process was completed on the 21st, resulting in the acquisition of the patent. We considered the need for a "divisional application," but concluded that it was unnecessary, and completed the patent registration process on the 21st. It took four years from the application. No one had created a similar microbubble generation nozzle. Neither patent searches nor internet searches revealed any designs that maximized the characteristics of loop flow. In August of this year, I will present on "Characteristics and Application Examples of Loop Flow Microbubble Generation Nozzles" at a conference of the Japan Multiphase Flow Society at the University of Tokyo, Kashiwa Campus. For more details, please contact us or refer to the catalog.

We were able to remove contamination with the same effect as during the ultra-polishing of wafers. We received an inquiry regarding contamination removal from pressed punched products. The issue was that the contamination generated during the burr removal process was strongly adhered to the products, and there were some that could not be removed even after passing through the cleaning removal device. Since they mentioned using a neutral detergent, we used a small OK nozzle OKE-MB07FJ (20L/min). The cleaning solution containing the neutral detergent in the 500L tank was initially cloudy, making it difficult to determine the generation of microbubbles. We experimented by varying the air suction volume and selected the optimal suction volume for cleaning, achieving the same effect as during the ultra-polishing of wafers. In this cleaning process, it seems that microbubbles burst due to showering and brushing, allowing for detachment cleaning through their destructive power. The method for generating microbubbles involves using a submersible pump within the 500L tank. For more details, please contact us or refer to the catalog.

A Teflon microbubble generation nozzle with a discharge capacity of 1000 mL/min has been completed. - The vacuum level in the nozzle mixing section is very high, reaching 95.5% at 0.3 MPa. It is energy-efficient for low-pressure use. - The self-priming capacity is very high, at 130% of the discharge amount. The 1000 mL/min nozzle has no discontinuity in self-priming capacity. The OKE-MB01FJ and OKE-MB03FJ show discontinuity in self-priming capacity near a water pressure of 0.15 MPa. At 0.11 MPa, the air self-priming capacity exceeds the discharge amount. At 0.15 MPa, the air self-priming capacity is 1.3 L/min. - Microbubbles are generated even in a jacuzzi state. They are very fine microbubbles. - This nozzle has been used in experiments for cleaning with ultra-pure water. For more details, please contact us or refer to the catalog.