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    • 96. 发明公开
    • METHOD FOR MANUFACTURING NON-ORIENTED SILICON STEEL WITH HIGH-MAGNETIC INDUCTION
    • 用于生产不结盟硅钢高磁感
    • EP2508629A1
    • 2012-10-10
    • EP11835489.3
    • 2011-04-14
    • Baoshan Iron & Steel Co., Ltd.
    • WANG, ZitaoWANG, BoXIE, ShishuJIN, BingzhongMA, AihuaZOU, LiangZHU, YuhuaHU, ZhanyuanCHEN, Xiao
    • C21D8/12C22C38/02C22C38/06
    • C22C38/00C21D1/00C21D6/008C21D8/00C22C38/001C22C38/002C22C38/004C22C38/02C22C38/04C22C38/06C22C38/12C22C38/14H01F1/16
    • Abstract: A manufacture process of non-oriented silicon Steel with high magnetic induction comprising the procedures: 1) smelting and casting: the steel's chemical compositions by weight percent: Si 0.1~1%, Al 0.005~1.0%, C ≤ 0.004%, Mn = 0.10~1.50%, P ≤ 0.2%, , S ≤0.005%, N ≤0.002, Nb+V+Ti ≤0.006%, and the rest is Fe; molten steel is smelted and secondary refined and then casted into a billet; 2) hot-rolling: the billet is heated to 1150~1200°C, and then hot-rolled into a plate at finish-rolling temperature 830~900 °C , at a temperature ≥ 570°C, and is coiled; 3) flattening: the plate is cold-rolled at compression ratio 2~5%; 4) normalization: the plate is normalized at temperature not below 950°C for 30~180s; 5) pickling and cold-rolling: the normalized plate is pickled, and then is successively cold-rolled several times at total compression ratio 70~80% into a sheet with thickness of finished product; 6) finish-annealing: the cold-rolled sheet is quickly heated to 800~1000 °C at temperature rise rate ≥ 100°C/s, and soaked for 5~60s, thereafter, cooled slowly to 600~750C, then left to cool naturally. The manufacture process can raise magnetic induction of non-oriented silicon Steel by at least 200 Gauss without increasing iron loss.
    • 摘要:1)熔炼和铸造:按重量百分比计在钢的化学组合物:硅0.1〜1%以下,Al 0.005〜1.0%,C‰¤0.004%无取向硅钢的具有高磁感应包括的过程的制造过程 ,锰= 0:10〜1:50%,P‰¤0.2%,S‰¤0.005%,N‰¤0.002,NB + V +的Ti‰¤0.006%,其余为Fe; 钢水熔炼和次级精制,然后浇铸成坯料; 2)热轧:将钢坯加热至1150〜1200℃,然后热轧在终轧温度为板830〜900℃,在‰¥570℃的温度,并且是盘绕; 3)平坦化:所述板是冷轧在压缩比2〜5%; 4)归一化:将板在温度不低于950℃下进行30〜180秒归一化; 5)酸洗和冷轧:归一化的板进行酸洗,然后是连续冷轧几次在总压缩比70〜80%与成品的厚度的片材; 6)最终退火:所述冷轧板是在升温速度‰¥100℃/秒,快速加热到800〜1000℃,浸泡5〜60,此后,缓慢冷却至600〜750℃,然后左 自然冷却。 制造过程中可以通过至少200个高斯,而不增加铁损提高无取向硅钢的磁感应。
    • 97. 发明公开
    • AIR-COOLING FACILITY FOR HEAT TREATMENT PROCESS OF MARTENSITE BASED STAINLESS STEEL PIPE
    • 空冷系统的管不锈钢对马氏体热处理工艺
    • EP2264194A1
    • 2010-12-22
    • EP08873549.3
    • 2008-12-15
    • Sumitomo Metal Industries, Ltd.
    • MORI, NobuyukiSAKAMOTO, Akihiro
    • C21D9/08C21D1/00C22C38/00C22C38/18C22C38/54
    • C22C38/18C21D1/00C21D9/08C21D9/085C21D2211/008C22C38/02C22C38/04C22C38/54
    • An object of the present invention is to provide air cooling equipment for a heat treatment process for a martensitic stainless steel pipe, which is capable of shortening the time required for the heat treatment process by enhancing the cooling efficiency at the time when the inner surface of steel pipe is air cooled in the heat treatment process.
      Air cooling equipment 100 for a heat treatment process for a martensitic stainless steel pipe P in accordance with the present invention comprises: a conveying device 10 for intermittently conveying the steel pipe P in the direction substantially at right angles to the longitudinal direction of the steel pipe P; and an air cooling device 20 provided with a nozzle 21 for spraying air Bi toward the inner surface of the steel pipe P, the nozzle 21 being arranged along the longitudinal direction of the steel pipe P at a stop position of the steel pipe P intermittently conveyed by the conveying device 10 so as to face to an end of the steel pipe P.
    • 本发明的目的在于提供一种用于一马氏体类不锈钢管的热处理工序提供的空气冷却设备,所有这些都能够缩短由在时间提高冷却效率的热处理工序所需要的时间。当的内表面 钢管是在热处理过程中冷却的空气。 空气冷却设备100的热处理工序为在与本发明雅舞蹈马氏体类不锈钢管P包括:输送装置10,用于以直角间歇输送的方向上的钢管P基本上在钢管的长度方向 P: 并空气冷却喷雾空气B朝向钢管P的内表面上设置有喷嘴21装置20中,喷嘴21沿钢管P的长度方向在间歇性地输送钢管P的停止位置布置 由输送装置10,以便面对于在钢管P的端