From October 13th to 14th, Harbin Bearing Group Co., Ltd. (HRB Bearing) invited Lei Jianzhong, a renowned expert in the Chinese bearing industry, to conduct specialized training on bearing materials and heat treatment. Company leaders, department heads, technical personnel, and process engineers and quality inspectors from branch factories participated in the training, focusing on bearing materials and heat treatment technologies. This training provided a strong impetus for improving HRB Bearing's product quality and technical capabilities.

This training focused on "Improving Bearing Materials and Heat Treatment Technology to Enhance Enterprise Core Competitiveness." Closely centered around the bearing industry's stringent requirements for material metallurgy and heat treatment quality, it constructed a three-dimensional training framework: "Theoretical Knowledge - Practical Application - Cutting-Edge Trends." The training was rich and practical.

Drawing on his profound professional expertise and extensive practical experience, expert Lei Jianzhong first provided an in-depth explanation of "Key Characteristics of Bearing Materials." Using the "Bearing Steel Microstructure and Performance Relationship Model," he explained the impact of bearing steel's chemical composition and microstructure on its hardness, toughness, wear resistance, and other properties. Drawing on numerous practical examples from the bearing industry, Lei Jianzhong emphasized: "The purity and uniformity of bearing materials directly impact the service life and reliability of bearings. High-quality materials are the foundation for producing high-performance bearings." He also compared the performance indicators of advanced bearing materials from both domestic and international sources, clarifying the improvement directions for HRB Bearing in bearing material selection and R&D.

In the "Heat Treatment Process and Requirements for Rolling Bearing Parts" module, the training focused on the entire bearing heat treatment process, specifically analyzing the impact of key process steps such as quenching, tempering, annealing, and normalizing on bearing performance. Drawing on his long-term experience in drafting and developing national and industry standards for bearing steel, expert Lei Jianzhong explained in detail how to precisely control heat treatment process parameters to optimize bearing performance based on different bearing materials and product requirements. For example, advanced quenching and cooling techniques can be used to improve bearing hardness uniformity, while precise tempering processes can be used to control residual stress in bearings. He provided employees with valuable technical solutions and key operational points.

"Bearing materials and heat treatment are core technologies in bearing manufacturing and directly determine the quality and performance of bearing products. We must apply what we've learned to practical work, striving for excellence in every step, from material selection to heat treatment process control, to enhance the technical level and market competitiveness of HRB Bearing's bearing products," a participant said after the training.

To quickly implement the training knowledge and transform theory into practical problem-solving skills, HRB Bearing organized a special training session on the second day for participating technicians, process engineers, and quality inspectors at the company's physical and chemical testing center, where they conducted material physicochemical tests such as metallographic structure examination, hardness testing, and composition analysis. Experts provided guidance. During the practical training, expert Lei Jianzhong provided on-site answers to common technical challenges encountered in production, helping employees quickly master accurate identification techniques. The on-site interaction was frequent, with employees raising questions about production issues and experts providing specific solutions combining theory and practice, transforming the practical training sessions into a "problem-solving classroom."

This specialized training, along with subsequent expert-led practical exercises in physics and chemistry, not only systematically enhanced the HRB Bearing technical team's expertise and practical skills in bearing materials and heat treatment, but also addressed a number of practical technical challenges encountered in production and clarified the company's technological development direction in this area. Going forward, HRB Bearing will continue to strengthen R&D and innovation in bearing materials and heat treatment technologies, elevating these technologies from "following" to "leading," and contributing further to the high-quality development of the bearing industry.