Company Filing History:
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2 out of 8 
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Years Active: 2016-2020
Title: Waldyr Ristow Junior: Innovator in Self-Lubricating Sintered Products
Introduction
Waldyr Ristow Junior is a notable inventor based in Caxias do Sul, Brazil. He has made significant contributions to the field of metallurgy, particularly in the development of self-lubricating sintered products. With a total of three patents to his name, Ristow's work showcases his innovative approach to material science.
Latest Patents
Ristow's latest patents focus on the composition of particulate materials and the process for obtaining self-lubricating sintered products. The metallurgical composition he developed includes a main particulate metallic material, such as iron or nickel, combined with at least one alloy element to enhance the hardness of the main metallic material, forming a structural matrix. Additionally, the composition incorporates a particulate solid lubricant, which can be graphite, hexagonal boron nitride, or a mixture of these materials. A key feature of his invention is the inclusion of a particulate alloy element that forms a liquid phase during the sintering process, agglomerating the solid lubricant into discrete particles. This innovative approach helps to stabilize the alpha-iron matrix phase during sintering, preventing the solubilization of the graphite solid lubricant in the iron.
Career Highlights
Throughout his career, Waldyr Ristow Junior has worked with prominent organizations, including Whirlpool S.A. and the Federal University of Santa Catarina (UFSC). His experience in these institutions has allowed him to refine his expertise in metallurgy and material science.
Collaborations
Ristow has collaborated with notable colleagues such as Roberto Binder and Aloisio Nelmo Klein. These partnerships have contributed to the advancement of his research and innovations in the field.
Conclusion
Waldyr Ristow Junior is a distinguished inventor whose work in self-lubricating sintered products has made a significant impact in metallurgy. His innovative patents and collaborations reflect his dedication to advancing material science.
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