| abstract |
A method of cold rolling to prevent the fracture of steel in bands with high silicon, characterized in that the steel in bands with high silicon has a content of Si = 2.3% by weight, and at the beginning of cold rolling, the temperature of the steel in bands at the entrance is above 45 ° C, during the cold rolling process, the emulsion liquid sizzles to the steel in bands, the flow rate of the emulsion liquid is 3500 L / min at the entrance into the rolling direction, the flow rate of the emulsion liquid is 1500 ~ 4000 L / min at the exit in the rolling direction, and the temperature of the strip steel ensures that it is above 45 ° C under the precondition of guaranteeing Technological lubrication The cold rolling method of the invention could prevent fracture of the head portion and the tail portion of the strip steel, increase the speed of the finished products and the production efficiency. |