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    • 24. 发明申请
    • HIGH COPPER LOW ALLOWY STEEL SHEET
    • 高铜低碳钢板
    • WO2009052551A1
    • 2009-04-30
    • PCT/AU2008/001512
    • 2008-10-14
    • BLUESCOPE STEEL LIMITEDIHI CORPORATIONNUCOR CORPORATIONALWIN, Mary E
    • ALWIN, Mary E
    • B22D11/06C22C38/16
    • C22C38/04C22C38/02C22C38/16
    • A high copper low alloy steel sheet less than 5 mm is made by preparing a molten melt producing an as-cast low alloy steel comprising by weight, 0.02% to 0.3% carbon, 0.10% to 1.5% manganese, 0.01% to 0.5% silicon, greater than 0.01% and less than or equal 0.15% phosphorus, less than 0.05% aluminum, more than 0.20% copper, less than 0.03% tin, less than 0.10% nickel, total oxygen level at least 70 ppm and usually less than 250 ppm, free oxygen content 20 to 70 ppm, the remainder iron and impurities, solidifying the melt into sheet less than 10 mm thickness in a non-oxidizing atmosphere to below 1080?C. Copper content may be between 0.2% and 2.0% by weight. The steel may have a corrosion index (I) of at least 6.0 in accordance with ASTM G101 where: I = 26.01 (% Cu) + 3.88 (% Ni) + 1.20 (% Cr) + 1.49 (% Si) + 17.28 (% P) - 7.29 (% Cu)(% Ni) - 9.10 (% Ni)(% P) - 33.39 (% Cu) 2 . The steel may be produced by twin roll casting, and may be less than 2 mm thickness.
    • 制备低于5mm的高铜低合金钢板,制备熔融熔融物,制备铸态低合金钢,其重量为0.02%至0.3%的碳,0.10%至1.5%的锰,0.01%至0.5%的硅 ,大于0.01%且小于或等于0.15%的磷,小于0.05%的铝,大于0.20%的铜,小于0.03%的锡,小于0.10%的镍,总氧含量至少为70ppm并且通常小于250 ppm,游离氧含量为20至70ppm,其余为铁和杂质,在非氧化性气氛中将熔体固化成小于10毫米厚的薄片至低于1080℃。 铜含量可以在0.2重量%至2.0重量%之间。 根据ASTM G101,钢可以具有至少6.0的腐蚀指数(I),其中:I = 26.01(%Cu)+ 3.88(%Ni)+ 1.20(%Cr)+ 1.49(%Si)+17.28(% P) - 7.29(%Cu)(%Ni)-9.10(%Ni)(%P) - 33.39(%Cu)2。 钢可以通过双辊铸造制造,并且可以小于2mm厚。
    • 28. 发明申请
    • SIDE DAM WITH INSERT
    • 侧面插入
    • WO2014005174A1
    • 2014-01-09
    • PCT/AU2013/000711
    • 2013-06-28
    • BLUESCOPE STEEL LIMITEDIHI CORPORATIONNUCOR CORPORATION
    • ONDROVIC, Jay, JonDENO, AlanSCHLICHTING, MarkMAHAPATRA, Rama, Ballav
    • B22D11/06B22D11/14B22D11/16
    • B22D11/066B22D11/0622
    • A composite side dam for a continuous twin roll caster includes a substrate made of a refractory material capable of withstanding casting temperature and having edge portions adapted to engage casting rolls and having a nip portion adjacent a nip between casting rolls and upper portions extending across the side dam to form a lateral restraint for a casting pool, an insert of at least 10 mm in thickness positioned in a pocket in the substrate and extending to engage the molten metal and extending from the upper portions of the substrate and positioned in the pocket to within 30 mm from the nip portion by insertion adjacent the upper portions of the substrate. The insert is adapted to fit into the pocket of the substrate to form a side dam formed of a refractory material having consumption rate less than 10 mm per hour. The material forming the insert may be between 40 and 60% a SiAlON material. The remainder of the material may be a hBN material. The material may be a mullite material having between about 60 and 63 mole percent A1203. The remainder of this material may be Si02. The material may be a fused silica, such as between 40 and 60% fused Si02 and the remainder a hBN material.
    • 用于连续双辊连铸机的复合侧坝包括由能够承受铸造温度的耐火材料制成的基底,并且具有适于接合铸辊的边缘部分,并且具有邻近铸辊之间的辊隙和在侧面延伸的上部之间的辊隙部分 形成用于铸造池的横向约束件,其厚度至少为10毫米的插入件定位在基板中的凹槽中并且延伸以接合熔融金属并且从基板的上部延伸并定位在凹槽内 通过相邻于基板的上部的插入而与压合部分相距30mm。 插入件适于装配到基板的凹部中以形成由具有小于每小时10mm的消耗率的耐火材料形成的侧坝。 形成插入物的材料可以为SiAlON材料的40至60%。 剩余的材料可以是hBN材料。 该材料可以是具有约60至63摩尔%Al 2 O 3的莫来石材料。 该材料的其余部分可以是SiO 2。 该材料可以是熔融二氧化硅,例如40-60%熔融的SiO 2,其余是hBN材料。