Working condition of roller rings used in finishing roll sector or pre-finishing roll sector of high speed line or rod rolling mill production line is extremely vile.
高速线、棒材热轧生产线的预精轧段和精轧段用轧辊的工作条件十分恶劣。
2
There is brittle fracture frequently during drawing the high carbon wire rod 82b, which is used for pre-stressed strand.
预应力钢绞线用优质高碳盘条82b在拉拔过程中常出现脆断现象。
3
The results indicated that both the number of rod bivalents and the number of pre-division bivalents increased markedly after radiation, while the number of bivalent chiasma tended to decrease.