Johann Stiebellehner

Title: Johann Stiebellehner: Innovator in Seamless Tubing Technology

Introduction

Johann Stiebellehner, an inventive mind hailing from Pottschach, Austria, has made significant strides in the field of material manufacturing. His notable contribution is a single patent that showcases his expertise in producing seamless tubing, particularly from austenitic steels. Stiebellehner’s innovative process reflects his understanding of metallurgy and manufacturing techniques.

Latest Patents

The patent attributed to Stiebellehner outlines a sophisticated method for manufacturing seamless tubes. The invention describes a process where a metallic melt is continuously poured into a cooled mold featuring a round molding cavity. The extracted billet, which remains unsolidified, undergoes electromagnetic agitation around its longitudinal axis. Following this, the hardened billet is crosscut, and the resulting castings undergo annealing at temperatures ranging between 1100°C and 1250°C. This treatment is conducted for a duration of 30 minutes to 4 hours, with specific preferences for temperatures around 1150°C to 1200°C for 1-2 hours. The cooled castings are then machined into extrusion blooms, leading to the final production of seamless tubes through the extrusion process.

Career Highlights

Johann Stiebellehner is associated with Vereinigte Edelstahlwerke Aktiengesellschaft, a company recognized for its commitment to innovation in steel manufacturing. His work focuses on advancing processes that improve the quality and efficiency of steel products, reflecting the core values of his employer in pushing the boundaries of metal processing technology.

Collaborations

During his career, Stiebellehner has collaborated closely with his colleague, Peter Machner. This partnership highlights the importance of teamwork and shared expertise in driving forward innovative solutions within the field of metallurgy.

Conclusion

In summary, Johann Stiebellehner stands as a notable inventor whose contributions to seamless tubing production have significant implications for the steel industry. His patented method exemplifies advanced manufacturing techniques that enhance the effectiveness and quality of steel products, solidifying his role as an influential figure in the realm of materials engineering.