Method of making ultra low-carbon steel
    1.
    发明授权
    Method of making ultra low-carbon steel 失效
    制造超低碳钢的方法

    公开(公告)号:US5879479A

    公开(公告)日:1999-03-09

    申请号:US784833

    申请日:1997-01-17

    摘要: Adding aluminum and/or silica to molten steel after decarburization containing about 0.005 percent by weight or less of carbon and about 1.0 percent by weight or less of manganese to form a mildly deoxidized molten steel; adding titanium to the mildly deoxidized molten steel to continue deoxidation so that the molten steel contains about 0.005 percent by weight or less of aluminum, about 0.20 percent by weight or less of silicon and about 0.01 to 0.10 percent by weight of titanium, to form inclusions in the molten steel which essentially consist of a complex oxide of titanium and aluminum, a complex oxide of titanium and silicon, and/or a complex oxide of titanium, aluminum and silicon.

    摘要翻译: 在脱碳后,向钢水中加入铝和/或二氧化硅,其含有约0.005重量%以下的碳和约1.0重量%以下的锰,以形成温和脱氧的钢水; 将钛添加到温和脱氧的钢水中以继续脱氧,使得钢水含有约0.005重量%以下的铝,约0.20重量%以下的硅和约0.01〜0.10重量%的钛,以形成夹杂物 在基本上由钛和铝的复合氧化物,钛和硅的复合氧化物和/或钛,铝和硅的复合氧化物组成的钢水中。

    Titanium killed steel sheet and method
    4.
    发明授权
    Titanium killed steel sheet and method 有权
    钛杀死钢板和方法

    公开(公告)号:US6117389A

    公开(公告)日:2000-09-12

    申请号:US160460

    申请日:1998-09-24

    摘要: Titanium killed steel sheets which are not troubled by nozzle clogging while they are produced in a continuous casting process, have few surface defects caused by cluster-type inclusions, and are highly rust resistant, and are formed from a melt of titanium killed steel that contains any one or two of Ca and metals REM in an amount of not smaller than 0.0005% by weight, and wherein the steel contains major oxide inclusions of any one or two of CaO and REM oxides in an amount of from about 5 to 50% by weight, Ti oxides in an amount of not larger than about 90% by weight, and Al.sub.2 O.sub.3 in an amount of not larger than about 70% by weight.

    摘要翻译: 在连续铸造中制造时不会受到喷嘴堵塞的钛死亡钢板,簇簇型夹杂物的表面缺陷少,耐锈性高,并且由钛镇静钢的熔融体形成, Ca和金属REM中的一种或两种以不小于0.0005重量%的量存在,并且其中钢含有约5至50重量%的CaO和REM氧化物中的任何一种或两种的主要氧化物夹杂物,其量为约5至50% 重量的Ti氧化物的量不大于约90重量%,Al 2 O 3的量不大于约70重量%。

    Method of producing molten aluminum-killed steel for thin steel sheet
    5.
    发明授权
    Method of producing molten aluminum-killed steel for thin steel sheet 失效
    生产用于薄钢板的熔融铝镇静钢的方法

    公开(公告)号:US5616188A

    公开(公告)日:1997-04-01

    申请号:US540868

    申请日:1995-10-11

    CPC分类号: C22C38/04 C21C7/10

    摘要: In a method of producing a molten aluminum-killed steel for forming a thin steel sheet, molten steel tapped from a converter is decarburized to a predetermined carbon concentration by using a vacuum degasser, and Al is added to the molten steel in the vacuum degasser to deoxidize the molten steel. A material containing metallic Ca is then added to the molten steel to produce a Ca content of about 0.0005 to 0.005 wt %, and to satisfy [%Ca].times.[%S].ltoreq. about 2.times.1 0.sup.-5. Thereafter, degassing is performed on the molten steel.

    摘要翻译: 在制造用于形成薄钢板的熔融铝镇静钢的方法中,通过使用真空脱气机将从转炉挖出的钢水脱碳至预定的碳浓度,并将Al加入真空脱气机中的钢水中 使钢水脱氧。 然后将含有金属Ca的材料添加到钢水中以产生约0.0005至0.005重量%的Ca含量,并且满足[%Ca] x [%S]≤2×10-5。 此后,对钢水进行脱气。

    Process for hot-rolling stainless steel
    7.
    发明授权
    Process for hot-rolling stainless steel 失效
    热轧不锈钢工艺

    公开(公告)号:US06261639B1

    公开(公告)日:2001-07-17

    申请号:US09273530

    申请日:1999-03-22

    IPC分类号: B05D312

    CPC分类号: C21D1/68 B21B3/02 B21B45/0263

    摘要: A hot-rolling process prevents surface deterioration of the stainless steel sheet which forms during hot rolling of a stainless steel slab after heating in a heating furnace, and does not cause damage to the heating furnace nor a decrease in yield of the steel sheet. The hot-rolling process for a stainless steel slab includes heating a stainless slab containing 10 weight percent or more of chromium in a heating furnace and hot-rolling the slab. A surface treatment, which is used prior to the heating, composition is composed of a mixture containing at least one of a Ca compound and a Ba compound and a binder for binding the mixture to a slab surface and for forming a coating film on a slab surface.

    摘要翻译: 热轧方法防止了在加热炉中加热后在不锈钢板坯的热轧过程中形成的不锈钢板的表面劣化,并且不会对加热炉造成损害,也不会降低钢板的产量。 不锈钢板的热轧方法包括在加热炉中加热含有10重量%以上的铬的不锈钢板并热轧板坯。 在加热之前使用的表面处理组合物由包含Ca化合物和Ba化合物中的至少一种的混合物和用于将混合物粘合到板坯表面上并在板上形成涂膜的粘合剂 表面。

    Continuous casting process with vertical mold oscillation
    8.
    发明授权
    Continuous casting process with vertical mold oscillation 失效
    连铸过程与垂直模具振动

    公开(公告)号:US5579824A

    公开(公告)日:1996-12-03

    申请号:US602258

    申请日:1996-02-16

    CPC分类号: B22D11/053

    摘要: In a process of withdrawing castings while vertically oscillating a mold formed with long side walls and short side walls, the long side walls are moved apart from the castings by operating a hydraulic cylinder in the time zones for which the castings are applied with a large frictional force. On the contrary, the separated long side walls are made to move together to the casting in the other time zones for which the casting is not applied with the large frictional force. By repeating the separation and approaching of the long side walls, it is possible to obtain castings which are reduced in the depths of oscillation marks and suppressed in segregations at oscillation mark trough portions.

    摘要翻译: 在垂直摆动形成有长侧壁和短侧壁的模具的同时垂直摆动铸件的过程中,通过在施加有大摩擦力的铸件的时间段内操作液压缸来移动长侧壁与铸件分离 力。 相反,分离的长侧壁在铸造不施加大的摩擦力的其他时间区域中一起移动到铸件。 通过重复长侧壁的分离和接近,可以获得减少振动痕迹深度并抑制振动标记槽部分偏析的铸件。

    Control device for controlling mold oscillation in a continuous casting
machine
    9.
    发明授权
    Control device for controlling mold oscillation in a continuous casting machine 失效
    用于控制连续铸造机中的模具振动的控制装置

    公开(公告)号:US5350005A

    公开(公告)日:1994-09-27

    申请号:US64436

    申请日:1993-05-21

    CPC分类号: B22D11/166 B22D11/0535

    摘要: A control device for controlling mold oscillation in a continuous casting machine comprises a horizontal position detector, an open-close control device and hydraulic cylinders. The horizontal position detector is attached to a piston rod of the hydraulic cylinder for detecting an actual position of long-side copper plates of a mold. The open-close control device further comprises a reference position compensation circuit where a predetermined offset value is received. The reference position compensation circuit produces a compensation signal with which a target position of the long-side copper plates is modified. The open-close control device controls the hydraulic cylinders according to the compensation signal such that a deviation between the actual horizontal position and the target horizontal position of the long-side copper plates becomes equal to the offset value.

    摘要翻译: 用于控制连续铸造机中的模具振动的控制装置包括水平位置检测器,开关控制装置和液压缸。 水平位置检测器安装在液压缸的活塞杆上,用于检测模具的长边铜板的实际位置。 开闭控制装置还包括接收预定偏移值的基准位置补偿电路。 基准位置补偿电路产生修正了长边铜板的目标位置的补偿信号。 开闭控制装置根据补偿信号控制液压缸,使得长边铜板的实际水平位置与目标水平位置之间的偏差变得等于偏移值。