In the steel and stainless steel manufacturing industry, the temper mill is a vital piece of equipment used to refine the mechanical properties and surface quality of metal strips. When integrated into a bright annealing line, the temper mill operation plays a critical role in ensuring the final product meets high standards of surface finish and dimensional accuracy. Bright annealing lines are designed to heat-treat stainless steel or other metals in a controlled atmosphere to prevent oxidation, resulting in a bright, scale-free surface. The addition of a temper rolling mill further enhances the material's characteristics, making it suitable for high-precision applications. The Significance of Temper Rolling in Bright Annealing Lines Temper rolling , also known as skin passing, is a light cold rolling process that follows the bright annealing stage. In a bright annealing line, the metal strip is heated to a specific temperature and then cooled in a controlled atmosphere to achieve the desired metallurgical properties. After annealing, the temper rolling mill applies a minimal reduction in thickness, typically between 0.5% and 3%, to improve the strip's surface finish, flatness, and mechanical properties. This process is essential for eliminating yield point elongation, which can cause surface defects during forming operations, and for ensuring the material is ready for high-end applications. Functionality of the Temper Pass Mill in Bright Annealing Lines In bright annealing lines, the temper pass mill is positioned after the annealing furnace and cooling section to process the heat-treated strips. The mill applies controlled pressure to the strip, improving its surface texture, flatness, and uniformity. This step is particularly important for applications requiring a mirror-like finish, such as in decorative panels, kitchen appliances, and automotive trim. Integration of Temper Rolling Mills in Rolling Factories In modern rolling factories, the integration of temper rolling mill s into bright annealing lines is a standard practice. This integration ensures a seamless transition from annealing to temper rolling , optimizing production efficiency and product quality. The temper rolling mill is equipped with advanced automation systems that monitor and adjust rolling parameters in real-time. This precision is critical for maintaining consistent thickness, flatness, and surface finish across the entire metal strip, ensuring it meets the stringent requirements of high-precision industries. Benefits of Temper Mill Operation in Bright Annealing Lines The temper mill operation in bright annealing lines offers several key benefits: Superior Surface Finish: The temper rolling process enhances the metal's surface quality, achieving a bright, reflective finish that is free from defects. Improved Mechanical Properties: Temper rolling eliminates yield point elongation, enhancing the material's formability and reducing the risk of surface defects during forming operations. Dimensional Accuracy: The process ensures precise control over thickness and flatness, which is essential for high-tolerance applications. Consistency and Uniformity: The temper rolling mill ensures uniform mechanical properties and surface characteristics across the entire strip, improving product reliability. Increased Efficiency: By integrating the temper rolling mill into the bright annealing line, manufacturers can streamline production and reduce downtime. By incorporating a temper rolling mill into the bright annealing process, manufacturers can achieve superior product performance, consistency, and efficiency. This integration is a key strategy in modern metal manufacturing, enabling the production of materials that excel in both functionality and aesthetics.
We have successfully executed over 500
projects around the world,
many first-of-their-kind
research projects and products in China, including
We have successfully executed over 500
projects around the world,
many first-of-their-kind
research projects and products in China, including
The 1st hydraulic AGC system for hot rolling of ribbon steel
The 1st AFC system used for 1450mm skin pass mill
The 1st 5-stand tandem line with 2-stand POR & Uncoiler for 650mm ribbon steel
The 1st reversing mill for 1380mm strip
The 1st soft-rolling system used in skin pass mill
The 1st fully automated medium-width tandem cold rolling mill
The 1st 5000KN Twin-stand double skin pass mill
The 1st coupled pickling line & tandem cold mill with two modes - big roller & small roller
Yang Wang Li Xin operates a state-of-the-art facility over 66,000 square meters,and our manufacturing facility is fully equipped with high-tech machinery and high-capacity cranes. This enables us to handle large work pieces measuring 4.5m in width, 10m in length, and 1.5m in height, guaranteeing our capacity to produce 1800mm skin-pass mills and 1450mm rolling mills. The individual piece can weigh up to 100 tons.


Quality is fundamental to the enterprise survival. We have established a comprehensive and meticulous quality management system and have successfully obtained ISO14000 certification. Starting from the design source, it supervises the entire production cycle, including design, procurement, processing, assembly, in-factory testing, installation, and online commissioning. The workshop is equipped with measuring tools like vernier calipers, spectrometers, hardness testers, and ultrasonic flaw detectors. They are used to check materials and control tolerances to ensure the final equipment meets or exceeds requirements. All products have a unique code, This enables the easy identification and traceability of the equipment components and ensures full control of quality.