Rainer Kuhna

Title: Rainer Kuhna: Innovator in Phosphate Coating Processes

Introduction

Rainer Kuhna is a notable inventor based in Frankfurt am Main, Germany. He has made significant contributions to the field of surface treatment, particularly in the production of phosphate coatings. His innovative approach has led to advancements that enhance the quality and durability of composite materials.

Latest Patents

Rainer Kuhna holds a patent for a process of producing phosphate coatings. This process involves creating a phosphate coating on composite parts made of steel and galvanized steel. The method includes steps such as alkaline cleaning, rinsing with an aqueous rinsing bath, and phosphatizing with an aqueous zinc phosphate solution. A key feature of his invention is the use of a rinsing bath containing specific concentrations of alkali borate, alkali silicate, and alkali nitrite, which prevents the formation of non-uniform coatings and spots. Additionally, if the composite part is treated with an activating bath containing titanium phosphate, it must include a certain concentration of tetraalkalipyrophosphate to ensure optimal results.

Career Highlights

Rainer Kuhna is associated with Metallgesellschaft Aktiengesellschaft, where he has applied his expertise in surface treatment technologies. His work has been instrumental in developing processes that improve the preparation of composite parts for subsequent painting, particularly through electrophoretic dip painting.

Collaborations

Throughout his career, Rainer has collaborated with esteemed colleagues such as Dieter Hauffe and Gerhard Muller. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Rainer Kuhna's contributions to the field of phosphate coatings exemplify the importance of innovation in material science. His patented process not only enhances the quality of composite materials but also sets a standard for future developments in the industry.