Certificates

WKZ036-2006           1E1006

1. To ensure that plate type and avoid scratches, do not use width times' rolling.

2. Casting billet careful cleaning, does not allow for this kind with defects.

3. Rolling millsshould arrange production reasonable when pack furnace, ensure change new roller after rolling, before change new roller. ,benxi steel stay in the soaking zone in the continuous furnace

4. Billet heating Ⅱaccording to the provisions of the steel group. Ensure billet temperature uniformity, through burning, banned the slab in furnace head long-term heating, so as to facilitate the iron cleanse.

5. Strengthen high pressure water descaling, rough rolling Ⅱstage before and open a few word times before rolling multi-purpose four roll high pressure water descaling, before finishing must play high pressure water, ensure all iron sheets.

6. adopt the Ⅱtype controlled rolling, open rolling temperature of 1050 ~ 1150 ℃, air steel thickness≥2 h. Ⅱstage open rolling temperature ≤920 ℃. Finishing temperature of ≤800 ~ 860 ℃.according to the dedication procedures of ACC to execute after rolling cold.

7. That should pay attention to prevent waves rolling sickle shape, bending plate shape, etc.

8. Straightening before and during the straightening frequently check and grinding straightening roller surface, in order to avoid roller.