采用紧凑式热带生产工艺(CSP)热轧板为原料生产冷轧钢板,对该热轧板及其冷轧钢板生成过程中各段进行了扫描电镜和金相显微镜的观察,研究了材料组织的演变,并对冷硬板及其退火后冷轧板做了化学相分析。结果表明:CSP热轧板组织中有少量的珠光体和夹杂物,随后的冷轧及退火过程对珠光体和夹杂物的影响较小,退火后的冷轧板最终组织呈分布均匀的长饼状铁素体晶粒。化学相分析表明,冷轧后退火过程中Fe3C的析出量有增加和聚集粗化的现象发生。 Cold-rolled steel plates were produced by compact hot-strip production (CSP) hot-rolled plates. The sections of the hot-rolled plates and cold-rolled steel sheets were observed by scanning electron microscopy and metallographic microscope. Evolution, and the cold plate and annealed cold-rolled plate chemical phase analysis done. The results show that there is a small amount of pearlite and inclusions in the CSP hot rolled plate. The subsequent cold rolling and annealing process have little effect on the pearlite and inclusions. The final microstructure of the cold rolled plate after annealing is a long cake with uniform distribution Ferrite grains. Chemical phase analysis showed that the amount of precipitated Fe3C increased and aggregated and roughened during the post-cold-rolling annealing.