李桂英李麦麦. Investigation of Drawing Fracture Cause of C82D2 Steel Wire for Steel Cord for Tyre and Process Improvement[J]. Special Steel, 2021, 42(4): 30-34.
李桂英李麦麦. Investigation of Drawing Fracture Cause of C82D2 Steel Wire for Steel Cord for Tyre and Process Improvement[J]. Special Steel, 2021, 42(4): 30-34.DOI:
Analysis results show that the center segregation of continuous casting billet is serious
easy to cause cup and cone fracture when the rod is drawn; the non-metallic inclusions in the wire rod cause the wire fracture due to the stress when the wire rod is pulled out and twisted; if the content of O and N in steel is too high
the strength and hardness of steel will increase
and the toughness will decrease; reasonable coiling temperature and cooling rate can ensure the ideal micro structure o£ the wire rod. By controlling [O
]
≤20 X 10
-6
N
]
≤40 X 10
-6
costing liquid superheating ≤25℃
rolling billet heating at 1100~1170 ℃ and coiling at 910~93O℃ etc process measures the drawing fracture is avoided.