汽輪發電機無磁性護環鍛件用鋼牌號與化學成分
我國于(yu)1993年制定出JB/T7029-1993《50MW以下汽輪(lun)發(fa)電機無(wu)磁(ci)性(xing)護(hu)(hu)環鍛件(jian)(jian)技(ji)術(shu)(shu)條(tiao)(tiao)件(jian)(jian)》、JB/T1268-1993《50~200MW汽輪(lun)發(fa)電機無(wu)磁(ci)性(xing)護(hu)(hu)環鍛件(jian)(jian)技(ji)術(shu)(shu)條(tiao)(tiao)件(jian)(jian)》和JB/T7030-1993《300~600MW汽輪(lun)發(fa)電機無(wu)磁(ci)性(xing)護(hu)(hu)環鍛件(jian)(jian)技(ji)術(shu)(shu)條(tiao)(tiao)件(jian)(jian)》系...