Production process of high-strength packaging steel strip

Production process of high-strength packaging steel strip
1. Production process
Blast furnace hot metal-mixing furnace-converter-ladle refining furnace-continuous casting-continuous casting billet-heating-inspection-packaging-rolling-inspection-packaging-cutting-annealing-inspection-warehousing.
2. Converter production process
Use converter to smelt 900mpa steel strip, deoxidize with silicon, aluminum, barium and ladle argon blowing treatment, and cast it into square billet on R9m continuous casting machine. According to the high tensile strength and suitable elongation of the hair band , Make appropriate adjustments to the main components in the steel.
Converter process route
Mixer furnace-converter-argon blowing station-LF-continuous casting machine.
Requirements for smelting
1. The first 20 furnaces of the new furnace, the first 5 furnaces after the lining is repaired, the furnace body, the oxygen lance, and the hood system shall not be allowed to smelt this steel.
2. The slag in the smelting process is thoroughly transformed to ensure the removal of phosphorus and sulfur.
3. It is prohibited to heat up after blowing.
4. Refining is used to fine-tune the composition according to the composition of molten steel to make the composition meet the target composition requirement of 900mpa steel strip.
The liquidus temperature of 5.900mpa steel strip grade is 1500 degrees Celsius, and the exit temperature of the LF furnace is 1580-1590 degrees Celsius. After refining, the upper continuous casting.