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为了扩大产品和原料的规格,从而提高经济效益,在我厂φ400×2/φ300×5轧机上,进行了采用8″(190×190/210×210)、重325kg的A3钢锭轧制75~2和60~2方坯生产性的试验研究,并转入了正常生产。据两个月的统计,共开出4736.477t(因两班作业并受加热炉能力的限制,故产量偏低)、完全符合国家标准的75~2和60~2方坯。公差达到751_(-0.3)~(+0),对角线差0.5;60_(-0)~(+0.7),对角线差0.5。合格率为99.43％,成材率达95.28％。总产值221万元,利润47万元。收到了显著的经济效益。
In order to expand the product and the raw material specification, thus enhances the economic efficiency, in our factory φ400 × 2 / φ300 × 5 rolling mill, carried on uses the 8 "(190 × 190/210 × 210) 2 and 60 ~ 2 billet production pilot study, and transferred to normal production.According to two months of statistics, a total of 4736.477t (due to the two operations and by the furnace capacity constraints, so the production is low) , In full compliance with national standards of 75 to 2 and 60 to 2 billet tolerance of 751 _ (-0.3) ~ (+0), the diagonal difference 0.5; 60 _ (- 0) ~ (+0.7), diagonal difference 0.5 The passing rate is 99.43%, the finished product rate is 95.28%, the total output value is 2.21 million yuan, the profit is 470,000 yuan, and significant economic benefits have been received.