Introduce artificial intelligence technology to predict zinc layer thickness. Towards the future intelligent development, it is a stepping stone to the evolution of automated prediction programs and automatic control functions.

The intelligent galvanized film thickness control system is a system jointly developed by Zhonggang and Zhongguan. It is located in the cold-rolled 2CGL hot-dip c-cross zinc production line. The equipment is above the zinc tank. It adjusts the opening and distance of the lip of the air knife, controls the pressure of air or nitrogen, scrapes off the excess zinc liquid on the surface of the steel strip, provides a predicted coating thickness, and assists the operator to adjust the parameters of the air knife to control the galvanized weight of the steel strip surface and controls the coating thickness to improve production quality.

Reduce zinc ingot usage

Stabilize the thickness and quality of zinc layer on the surface of steel belt

Early warning of changes in zinc gravel equipment status

Galvanizing related information collection: Set up process parameter acquisition program, collect galvanizing related process parameters

Big data classification and sorting: analyze process information, organize parameters for model training, improve model training accuracy and shorten training time

Zinc layer thickness film type training: use the collected data to conduct mechanical learning, train the zinc layer thickness plating model, and estimate the galvanized thickness

Deployment monitoring status: Import big data model predictions, provide parameter adjustments in advance

Indicator

    Galvanized film thickness uniformity, 20% increase

    The thickness of zinc layer and the target thickness are less than 5%

    Save 5% zinc usage

    Warning of the center position offset of the steel belt

    Calculate the amount of lip retraction of the air nozzle

Reduce costs

    Improve the uniformity of the coating film thickness, reduce the use of zinc plating, save 1% of zinc liquid every year, and reduce the cost by 5 million yuan.

    In China Steel Factory: 1 set of hot rolling and 12 sets of cold rolling