Discussed seueral measures for reducing the high consumption of hexamethylene diammonium adipatesalt ,such as reducing discharge capacity ofpolymerization pot caput -heels ,reducingthe rate of caput -heels ,advancingthe yield of single pot ,controlling hyperlength granula ,upgradingthe pack device ,andinhancingthe management of stor-age .

Prediction of the roll slot and thickness difference from the front to the end of narrow strip in hot rolling;