The Hot dip galvanizing line unit has the following characteristics:
(1) advanced and reliable process. The unit adopts the us-steel-linked hot-dip galvanizing process, featuring simple operation, high product quality, flexible production, strong product adaptability and reliable technology.
(2) reasonable and advanced equipment selectionIn the design of the unit, a large number of advanced and reliable technologies and equipment are selected:
(1) a hot roller is installed in the outlet section of the furnace, which can realize separate control of the tension between the furnace section and the process section, providing guarantee for the normal operation and stable plating quality of the process section; The cooling section is controlled by RJC, and the air jet fan is adjusted by frequency conversion, which can effectively and accurately control the temperature of steel taken into zinc pot, and effectively eliminate the problem of uneven cooling before plating.
2 air blade fan for air volume range is big, air blade fan adopts frequency control of motor speed control, is good for accurate control of zinc layer thickness and reduce the production cost, air blade transverse adjusting mechanism with high precision frequency control of motor speed transmission, lifting adopts variable frequency motor drive, can adjust air knife accurate position and create conditions for closed-loop control.
3. Adopting the wet optical finishing machine of four-roll AGC with hydraulic pressure control developed by our company, with the maximum rolling force of 530t and the maximum bending roll force of 70 tons; The yield platform can be reduced and eliminated and the mechanical performance can be improved.
4) adopt the hydraulic rapid lifting, stretching, bending and straightening machine developed by our company. The plate shape control is accurate, reliable and convenient.
(5) adopting advanced roller coating passivation technology, it can accurately control passivation film thickness, improve passivation effect and shorten the length of production line, and reduce pollution emission.The hydraulic rectifying system adopts imported rectifying technology, which can effectively control the operation of strip steel and improve the reliability of unit production.The key electronic control equipment of the line adopts Siemens products to ensure the reliability and accuracy of the electrical control system.