SX780CF钢板/SX780DF/SX780EF水电站压力钢板大钢厂生产保材质

一、高强水电钢的介绍：（1）高强钢牌号表示：”SX“代表三峡的意思。这是舞阳钢铁公司为三峡集团乌东德水电站建设使用级高强钢。（2）是大型水电工程高强度低裂纹敏感性用钢，国内舞阳钢厂可生产，属于舞阳钢厂科技部牌号。主要用于装机容量达千万千瓦以上大型水力发电机组和高水头蓄能电站中蜗壳、压力钢管等重要结构件制造，需具备高强韧性、良好冷变形性及焊接性。设备制造要求强度等级高，可焊性能强。（3）产品要求：钢板低碳（≤0.09%）、低碳当量（≤0.52）、低焊接裂纹敏感型指（≤0.25%），但同时又必须具备级的高强度和良好的低温冲击韧性，这两项相互矛盾的技术要求对工艺设计带来的较大问题就是可控区间极窄，就好比“戴着镣铐跳舞”。二、高强水电钢的生产工艺：1、原料 (废钢、生铁和铁水)2、电炉( 100吨电弧炉冶炼)、转炉3、LF炉钢水精炼处理4、VD或VOD炉钢水真空处理5、模铸( 多种键型模铸线)或连铸(大型板坯连铸机)；(一钢锭 重熔处理50吨板坯式电渣炉)6、加热(连续炉和均热炉)7、钢板轧制( 4100和轧机)8、钢板热处理(正火回火调质)9、钢板切割检验

10、入库

I. of steel(1) high steel brand means: "SX" for the of three . This is iron and steel for the three group using class high steel .(2) is a large high low crack with steel can be zhao meng is for to the and of steel brand. It is used in the of tube and other parts in large set with of over 10 kw and high head power . of high strong .(3) the : the low steel (0.09%) or less, low (0.52) or less, low crack (0.25%) or less, but at the same time, must have 780 mpa grade high and good these two for to bring is range is very the like "" chain.Ii. of . Raw ( pig iron and iron)2. (100 ton arc ), . LF steel . of steel in VD or VOD . Die ( key die lines) or (large slab ); (a steel ingot 50 ton slab type )6. ( and )7. Plate (4100 and mills)8. Heat of steel plate ( and )9. steel plate .