Rolling Steel Pressure Processing Technology

1. The medium-thick plate rapid cooling technology adopts the internationally advanced high-density tube laminar flow cooling device to improve the production of special steel plates by controlled rolling control cooling process in the production of medium and heavy plates, and improve the mechanical properties of the steel plates.

2. The controlled rolling and controlled cooling technology for bar production realizes the temperature-controlled rolling of the inter-stand and inter-unit rolling parts through a specially designed cooler to improve the strength and toughness of the bar.

3. Cold rolling, hot rolling, plate shape control technology, including roll design and optimization; strip shape online detection, signal recognition and shape evaluation; shape control strategy and presetting, feedforward, feedback mathematical model.

4. Hydraulic AGC technology, using high-performance hydraulic APC, AGC control system, has the advantages of fast response speed and high control precision. It is replacing electric AGC as the technology of today’s new rolling mills.

5. Complete set of equipment and technology for double-stand reversible cold rolling mill. This technology selects different rolling passes according to the material, specifications and production process conditions of the rolled strip, so that the rolling mill can flexibly adapt to the strip material in a large range.

6. Hot-rolled narrow strip steel production equipment and process technology, replacing the looper oscillator and vertical coiling with laminar cooling and horizontal coiler, and increase the high-pressure water descaling before the roughing mill. The surface quality and performance of the strip steel are obviously improved, and the coil weight is increased to 1-2 tons.

7. An on-line surface quality inspection system based on image processing, which uses a CCD camera to capture the surface image of the product on the production line, and analyzes and processes the image in real-time through image processing and pattern recognition algorithms to detect whether there is a defect on the surface of the product, and obtain the size, location, type, grade and other information of the defect to achieve the purpose of online evaluation and control of the surface quality of the product.

8. Steel product development and performance optimization techniques, including the influence of process parameters on the forming properties of IF steel; the research of ultra-fine grain and high-strength pure steel; the research of high-strength micro-alloyed steel.

9. Bar and wire rod size online detection system analysis software package. This software package is developed in C++, the system installation is convenient and fast, the system runs stably and reliably, with good human-machine interface, supports automatic report generation and printing, and has statistical analysis, historical record playback, query and other functions.

10. The application of finite element simulation in the metallurgical industry, using the general finite element software ANSYS, the volume forming and heat treatment analysis finite element software DEFORM and the thin sheet forming analysis software DYNAFORM for secondary development, enabling new product development and existing Process improvements are based on a more scientific and reliable basis.