Company Filing History:
Years Active: 1994-1995
Title: E Torbjorn Hartzell: Innovator in Cemented Carbide Technology
Introduction
E Torbjorn Hartzell is a notable inventor based in Stockholm, Sweden. He has made significant contributions to the field of cemented carbide technology, particularly in applications related to rock drilling and mineral cutting. With a total of five patents to his name, Hartzell's work has enhanced the performance and durability of drilling tools.
Latest Patents
Hartzell's latest patents include innovations that focus on improving the toughness and wear resistance of cemented carbide bodies. One of his notable inventions is a cemented carbide body with extra tough behavior. This invention features a core of eta-phase-containing cemented carbide, surrounded by a surface zone that is free of eta-phase and has low cobalt content. This design results in increased toughness and longevity during practical use. Another significant patent is for a cemented carbide button that boasts increased wear resistance. This button comprises a core and a surface zone, both containing tungsten carbide and a binder phase. The eta-phase core extends to the working surface, leading to longer life and higher drilling rates, especially in soft rocks.
Career Highlights
Hartzell's career is marked by his association with Sandvik AB, a leading company in the engineering sector. His work at Sandvik has allowed him to develop innovative solutions that address the challenges faced in rock drilling and mineral cutting industries. His inventions have been instrumental in advancing the technology used in these applications.
Collaborations
Hartzell has collaborated with several esteemed colleagues, including Jan G Akerman and Udo K Fischer. These collaborations have further enriched his work and contributed to the development of cutting-edge technologies in the field.
Conclusion
E Torbjorn Hartzell's contributions to cemented carbide technology have made a significant impact on the rock drilling and mineral cutting industries. His innovative patents reflect his commitment to enhancing the performance and durability of drilling tools. Hartzell's work continues to influence the field and drive advancements in technology.