Evaluation apparatus for cleanliness of metal and method thereof
    3.
    发明授权
    Evaluation apparatus for cleanliness of metal and method thereof 有权
    金属清洁度评价装置及其方法

    公开(公告)号:US06555063B1

    公开(公告)日:2003-04-29

    申请号:US09374826

    申请日:1999-08-13

    IPC分类号: G01N3300

    摘要: In order to quickly and economically evaluate cleanliness of a metal with high representativity when quantities, compositions, etc., of non-metallic inclusion particles existing in a metal and resulting in product defects are evaluated by a sample collected during the production process of the metal, the present invention provides an evaluation method involving the steps of levitation-melting a metal piece for a predetermined time by cold crucible levitation-melting means, discharging non-metallic inclusion particles contained in the metal piece to the surface of a molten metal, and directly analyzing a curved and non-smooth sample surface after solidification by a fluorescent X-ray analysis method using an energy dispersion type spectroscope, or by other chemical or physical measurements, to measure or analyze the quantities of elements constituting the non-metallic inclusion particles and to determine quantity of the non-metallic inclusions.

    摘要翻译: 为了快速,经济地评估具有高代表性的金属的清洁度,当金属中存在的非金属夹杂物颗粒的数量,组成等等,并且由金属制造过程中收集的样品评估产品缺陷时 本发明提供一种评价方法,包括以下步骤:通过冷坩埚悬浮熔化装置将金属片悬浮熔融预定时间,将包含在金属片中的非金属夹杂物颗粒排出到熔融金属表面;以及 通过使用能量分散型分光器的荧光X射线分析方法或通过其他化学或物理测量直接分析固化后的弯曲和非平滑样品表面,以测量或分析构成非金属夹杂物颗粒的元素的量 并确定非金属夹杂物的数量。

    Continuously cast slab of extremely low carbon steel with less surface
defects in steel sheet-producing step; extremely low carbon sheet
steel; and process for producing the same
    4.
    发明授权
    Continuously cast slab of extremely low carbon steel with less surface defects in steel sheet-producing step; extremely low carbon sheet steel; and process for producing the same 失效
    在钢板生产步骤中连续铸造具有较少表面缺陷的极低碳钢板; 极低碳钢板 及其制造方法

    公开(公告)号:US5578143A

    公开(公告)日:1996-11-26

    申请号:US500883

    申请日:1995-07-21

    摘要: (Object) IF-based, continuously cast slab essentially freed from defects such as surface defects, difficult production and poor strength, etc. of the product that the IF-based sheet steels have; sheet steels and a process for producing the same are provided.(Structure) A continuously cast slab of extremely low carbon steel comprising not more than 1.5% by mass of Si, not more than 2.0% by mass of Mn, not ore than 0.15% by mass of P, 0.01-0.15% by mass of Al, and not more than 0.0050% by mass of N, where the surface layer further contains 0.01-0.08% by mass of C existing as a cementite and the inner layer further contains not more than 0.0050% by mass of C, and at least one of 0.02-0.10% by mass of Ti, 0.01-0.10% by mass of Nb, 0.02-0.10% by mass of V and 0.03-0.10% by mass of Zr, the carbon existing substantially as carbides of these elements, preferably both the surface layer and the inner layer further contain 0.0001-0.0015% by mass of B, the balance being Fe and inevitable impurities; an sheet steel made from the slab; and a process for producing the slab and the sheet steel, combined with continuously casting powder, an electromagnetic brake and an alloy-adding wire.(Effect) The IF steel and its high strong steel, which have been suffered from impaired mass production, lower production yield and incomplete product characteristics have been established as satisfactory basis metallic materials.

    摘要翻译: PCT No.PCT / JP94 / 01964 371日期1995年7月21日 102(e)1995年7月21日PCT PCT 1994年11月21日PCT公布。 出版物WO95 / 14794 日期1995年6月1日(对象)基于IF的连续铸坯基本上免除了IF型钢板所产生的产品的缺陷,如表面缺陷,生产难度和强度差等; 提供了钢板及其制造方法。 (结构)将超过1.5质量%的Si,不超过2.0质量%的Mn,不超过0.15质量%的P的0.01-0.15质量%的极低碳钢的连铸板, Al,0.0050质量%以下,其中,表层进一步含有0.01-0.08质量%的作为渗碳体的C,内层还含有不大于0.0050质量%的C,至少 Ti:0.02〜0.10质量%,Nb:0.01〜0.10质量%,V:0.02〜0.10质量%,Zr:0.03〜10质量%,碳,碳, 表面层和内层还含有0.0001-0.0015质量%的B,余量为Fe和不可避免的杂质; 由板坯制成的钢板; 以及连续铸造粉末,电磁制动器和合金添加线的板坯和钢板的制造方法。 (效果)已经建立了以金属材料为基础的IF钢及其高强度钢,其受到批量生产受损,生产率降低和产品特性不完善。

    Continuous casting apparatus for molten metal
    8.
    发明授权
    Continuous casting apparatus for molten metal 有权
    熔融金属连续铸造设备

    公开(公告)号:US06443221B1

    公开(公告)日:2002-09-03

    申请号:US09515775

    申请日:2000-02-29

    IPC分类号: B22D2702

    CPC分类号: B22D11/115

    摘要: A continuous casting apparatus for molten metal is equipped with a mold having an electromagnetic coil which imparts a low frequency alternating current to the initially solidified portion of a meniscus and is formed with a plurality of divided cooling portions wherein the divided cooling portions are formed with a plurality of cooling copper plates each having cooling paths and back plates. The outer wall of the divided cooling portions is formed by facing the cooling path side of each of the divided cooling copper plates to that of the corresponding nonmagnetic stainless steel back plate and closing and fixing both plates, and the cooling copper plates are electrically insulated from each other by bonding electric insulating material to the joint faces of the cooling copper plates.

    摘要翻译: 一种用于熔融金属的连续铸造装置配备有具有电磁线圈的模具,该电磁线圈向弯液面的初始凝固部分施加低频交流电流,并且形成有多个分开的冷却部分,其中分开的冷却部分形成有 多个冷却铜板各自具有冷却路径和背板。 分开的冷却部分的外壁通过面对每个分开的冷却铜板的冷却路径侧而形成为相应的非磁性不锈钢背板的冷却路径侧,并且关闭和固定两个板,并且冷却铜板与 通过将电绝缘材料接合到冷却铜板的接合面上。

    Continuous casting method of multi-layered slab
    9.
    发明授权
    Continuous casting method of multi-layered slab 失效
    多层板连铸法

    公开(公告)号:US5269366A

    公开(公告)日:1993-12-14

    申请号:US955863

    申请日:1992-12-09

    CPC分类号: B22D11/115

    摘要: Two kinds of molten steels are poured into a continuous casting mold. Direct current magnetic flux is applied which direct current magnetic flux extends in a direction transverse to the thickness (corresponding to the thickness of a casting slab) of the poured content at a position of a certain height of the mold. The molten steels are supplied above and below a boundary of static magnetic fields formed by the direct current magnetic flux longitudinally or in a casting direction. When a difference (.DELTA..rho.) between a density .rho..sub.1 of the molten steel for an outer layer supplied above the static magnetic fields and a density .rho..sub.2 of the molten steel for an inner layer supplied below the static magnetic fields, is expressed by .DELTA..rho.=.rho..sub.1 -.rho..sub.2 (g/cm.sup.3), a density (tesla) of the direct current magnetic flux is determined by the following formula:a) in case of .DELTA..rho.

    Continuous casting process for composite metal material
    10.
    发明授权
    Continuous casting process for composite metal material 失效
    复合金属材料连续铸造工艺

    公开(公告)号:US4828015A

    公开(公告)日:1989-05-09

    申请号:US107471

    申请日:1987-10-09

    IPC分类号: B22D11/00

    CPC分类号: B22D11/007

    摘要: A method of producing a composite metal material such as clad bloom by continuous casting comprises the steps of supplying molten metals of different compositions by using two immersion nozzles into the strand pool at different positions and forming a static magnetic field zone on the boundary between the two types of metals to prevent mixing of the metals of different composition. The method enables production of a composite material exhibiting a sharp boundary between the two types of metals used and enables the thickness of the respective metal layers to be easily controlled by adjusting the location of application of the static magnetic field or the withdrawal speed of the strand of cast metal.

    摘要翻译: 通过连续铸造制造复合金属材料例如复层金属材料的方法包括以下步骤:通过在两个不同位置处使用两个浸入式喷嘴进入钢丝绳池中来形成不同组成的熔融金属,并在两者之间的边界上形成静态磁场区 金属类型,以防止不同组成的金属混合。 该方法能够生产在所使用的两种类型的金属之间表现出尖锐边界的复合材料,并且能够通过调节施加静态磁场的位置或链的提取速度来容易地控制各金属层的厚度 的铸铁。