Helmut Landgraf

Title: Helmut Landgraf: Innovator in Steel Pipe Jacketing Technologies

Introduction

Helmut Landgraf is a notable inventor based in Rumeln-Kaldenhausen, Germany. He has made significant contributions to the field of materials engineering, particularly in the area of jacketing steel pipes. With a total of 11 patents to his name, Landgraf's work has had a lasting impact on the industry.

Latest Patents

Among his latest patents is a method and device for jacketing a steel pipe with several plastic layers. This innovative method involves applying an inner foil to a preheated steel pipe to enhance adhesion, followed by an outer jacketing foil applied through a dual extrusion head heated to approximately 170 degrees Celsius. During the extrusion process, a gaseous mixture, including air and a reactive component like ozone, is introduced to promote adhesion through the formation of carboxylic groups. Another significant patent involves wrapping steel pipes in a thermoplastic ribbon. In this method, a thermoplastic hose is extruded longitudinally and wrapped around a rotating, axially advanced pipe, demonstrating versatility in application.

Career Highlights

Landgraf has worked with prominent companies such as Mannesmann Aktiengesellschaft and Mannesmannrohren-Werke AG. His experience in these organizations has allowed him to refine his skills and contribute to innovative projects in the field of pipe manufacturing.

Collaborations

Throughout his career, Landgraf has collaborated with notable colleagues, including Walter Stucke and Herbert Forster. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Helmut Landgraf's contributions to the field of steel pipe jacketing technologies are significant and impactful. His innovative methods and collaborative spirit continue to influence the industry today.