吴胜军. Development of Tire Cord Steel XLX72A by 80 t Top and Bottom Combined Blown Converter-LF Nol-LF No2-VD-CC Flow Sheet[J]. Special Steel, 2011, 32(3): 51-53.
吴胜军. Development of Tire Cord Steel XLX72A by 80 t Top and Bottom Combined Blown Converter-LF Nol-LF No2-VD-CC Flow Sheet[J]. Special Steel, 2011, 32(3): 51-53.DOI:
≤0. 005Al) has been developed by using the operation measures including converter end controlling -% : ≥ 0.12C
≤0. 008P
≤0. 010S- LF Nol basic slag refining for ≥40 min- LF No2 acid slag (R=0. 8 -0. 9) refining for 30 min- 67 Pa VD refining for ≥ 10 min and soft argon blowing for ≥15 min- shielding casting (liquid overheating ≤30 ℃ ) with mold and end electromagnetic stirring. Results show that the Cu and Al content in sled are respectively 0. 02% ~0. 03% and 0. 002% 〜0. 003%
the tensile strength Rm of Φ5. 5 mm product is 1 050 〜1 090 MPa and its reduction of area Z is 43. 5% -48. 0%
the ratings of macrostructure and micro inclusions in steel meet the requirement of standard