15~#薄壁槽钢的孔型设计和轧制

Pass Design and Pass Positioning of No.15 Thin Walled Channel Beam

结合济钢中型轧钢厂的生产实际，试制生产１５＃薄壁槽钢。１９９９年７月一次投产成功，共生产１０７１ｔ，合格率达９９.３７％，成材率达９０．４６％。

Comabined with production practice,Jinan iron and steel group has developed No. 15 thin. walled chennel beam. Since once production success in july, 1999 ,total productive capacity is 1071 tons, qualitied ratio of product is up to 99.37 %, finished product ratio is 90. 46 %.