USE OF NITROGEN COMPOUNDS IN THE PICKLING OF STAINLESS STEEL
    12.
    发明申请
    USE OF NITROGEN COMPOUNDS IN THE PICKLING OF STAINLESS STEEL 审中-公开
    硝酸化合物在不锈钢中的应用

    公开(公告)号:US20140334965A1

    公开(公告)日:2014-11-13

    申请号:US14445147

    申请日:2014-07-29

    IPC分类号: C11D7/08 C23G1/08

    CPC分类号: C11D7/08 C23G1/08 C23G1/086

    摘要: The present invention relates to an acidic aqueous solution suitable for the pickling of stainless steel grades that comprises accelerators based on water soluble inorganic compounds comprising at least one nitrogen atom in an oxidation state in the range of −2 to −⅓. The present invention further encompasses a process for the pickling of stainless steel that makes use of a pickling solution comprising the above-mentioned accelerators.

    摘要翻译: 本发明涉及适用于不锈钢等级酸洗的酸性水溶液,其包含基于水溶性无机化合物的促进剂,所述无机化合物包含至少一个氧化态的氮原子在-2至1/3的范围内。 本发明还包括使用包含上述加速剂的酸洗溶液酸洗不锈钢的方法。

    PICKLING METHOD AND PICKLING SYSTEM OF STEEL PLATE
    15.
    发明申请
    PICKLING METHOD AND PICKLING SYSTEM OF STEEL PLATE 有权
    钢板的切割方法和切割系统

    公开(公告)号:US20120240956A1

    公开(公告)日:2012-09-27

    申请号:US13513204

    申请日:2010-05-25

    IPC分类号: C23G1/08 B08B3/08 B08B3/12

    摘要: The present invention is a method of pickling of steel plate which contains silicon comprising applying ultrasonic waves of at least two types of frequencies of 28.0 kHz or more to less than 1.0 MHz to an acidic cleaning solution which contains microbubbles and, in that state, dipping the steel plate which contains silicon in that cleaning solution. The present invention is a continuous pickling system of steel plate which contains silicon which is provided with at least a support part which supports the steel plate, a conveyor which makes the steel plate move, and a pickling tank which pickles the steel plate, wherein the pickling tank has means for feeding microbubbles and means for applying ultrasonic waves of at least two types of frequencies of 28.0 kHz or more to less than 1.0 MHz.

    摘要翻译: 本发明是一种含有硅的钢板酸洗方法,其中包括对含有微泡的酸性清洗液施加28.0kHz以上至小于1.0MHz的至少两种频率的超声波,在该状态下浸渍 在该清洗液中含有硅的钢板。 本发明是一种钢板连续酸洗系统,其中含有硅,其至少设有支撑钢板的支撑部分,使钢板移动的输送机,以及酸洗槽,其中, 酸洗池具有用于进料微泡的装置和用于施加至少两种类型的28.0kHz或更高至小于1.0MHz的频率的超声波的装置。

    Method of descaling metallic devices
    16.
    发明授权
    Method of descaling metallic devices 有权
    除锈金属器件的方法

    公开(公告)号:US08038803B2

    公开(公告)日:2011-10-18

    申请号:US11370660

    申请日:2006-03-07

    IPC分类号: B08B3/00 B08B3/10 C23G1/00

    摘要: Methods are provided for descaling metallic components devices such as stents. The devices or components are cleaned under ultrasound in a cleaning solution of ammonium hydrogen fluoride at a temperature within a range of about 60° to 80° C., then rinsed at that temperature with an aqueous rinse containing a nonionic surfactant and rinsed again with purified water.

    摘要翻译: 提供了用于对诸如支架之类的金属组件装置进行除垢的方法。 将装置或组件在约60℃至80℃的温度范围内在氟化氢铵的清洁溶液中超声波清洗,然后用含有非离子表面活性剂的含水漂洗液在该温度下漂洗,再次用纯化的 水。

    PROCESS FOR MANUFACTURING COLD-ROLLED AND ANNEALED STEEL SHEET WITH A VERY HIGH STRENGTH, AND SHEET THUS PRODUCED
    17.
    发明申请
    PROCESS FOR MANUFACTURING COLD-ROLLED AND ANNEALED STEEL SHEET WITH A VERY HIGH STRENGTH, AND SHEET THUS PRODUCED 审中-公开
    制造具有非常高的强度的冷轧钢板和退火钢板的方法

    公开(公告)号:US20100307644A1

    公开(公告)日:2010-12-09

    申请号:US12599166

    申请日:2008-04-28

    IPC分类号: C21D8/02 C22C38/32 C22C38/22

    摘要: The invention relates to a cold-rolled and annealed steel sheet with a strength greater than 1200 MPa, the composition of which comprises, the contents being expressed by weight: 0.10%≦C≦0.25%, 1%≦Mn≦3%, Al≧0.010%, Si≦2.990%, S≦0.015%, P≦0.1%, N≦0.008%, it being understood that 1%≦Si+Al≦3%, the composition optionally comprising: 0.05%≦V≦0.15%, B≦0.005%, Mo≦0.25%, Cr≦1.65%, it being understood that Cr+3Mo≧0.3%, Ti in an amount such that Ti/N≧4 and Ti≦0.040%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting, the microstructure of the steel comprising 15 to 90% bainite, the remainder consisting of martensite and residual austenite.

    摘要翻译: 本发明涉及一种强度大于1200MPa的冷轧退火钢板,其组成包括:其含量以重量计:0.10%≦̸ C< l; 0.25%,1%≦̸ Mn≦̸ 3% ,Al≥0.010%,Si&NlE; 2.990%,S&NlE; 0.015%,P&NlE; 0.1%,N& NEE; 0.008%,可以理解为1%< Si + Al≦̸ 3%,组合物任选地包含:0.05% V + nlE; 0.15%,B< I; 0.005%,Mo≦̸ 0.25%,Cr≦̸ 1.65%,可以理解,Cr +3Mo≥0.3%,Ti为Ti /N≥4,Ti和nlE为0.040% 由冶炼产生的铁和不可避免的杂质组成的组成,钢的显微组织包含15至90%的贝氏体,其余由马氏体和残余奥氏体组成。

    Process and plant for descaling, pickling and finishing passivating stainless steel strips, and strips so obtainable
    18.
    发明授权
    Process and plant for descaling, pickling and finishing passivating stainless steel strips, and strips so obtainable 有权
    除锈,酸洗和整理钝化不锈钢带的工艺和设备,以及可获得的条带

    公开(公告)号:US07799199B2

    公开(公告)日:2010-09-21

    申请号:US10499330

    申请日:2002-12-29

    IPC分类号: C25F1/06

    摘要: Environment-friendly process for descaling, pickling and finishing/passivating in a continuous, integrated and flexible manner, applicable to any type of stainless steel, regardless of its physical structure, chemical composition and nature of surface oxides to be removed, within a single plant in which the required chemical, electrochemical, mechanical and hydromechanical treatments are carried out, merely diversifying the operative conditions of each treatment according to the stainless steel type to be processed. The process and the plant according to the invention allow elevated reaction rate, excellent surface quality, low energy and chemical reagent consumption and total environmental compatibility. The figure shows the block diagram of an embodiment of the plant according to the invention.

    摘要翻译: 在一个单一的植物中,不管其物理结构,待除去的表面氧化物的物理结构,化学成分和性质如何,适用于任何类型的不锈钢的除锈,酸洗和整理/钝化的环保工艺 其中进行所需的化学,电化学,机械和液压机械处理,仅根据待处理的不锈钢类型实现每种处理的操作条件的多样化。 根据本发明的方法和设备允许升高的反应速率,优异的表面质量,低能量和化学试剂消耗以及总环境相容性。 该图示出了根据本发明的设备的实施例的框图。

    Preparation of steel surfaces for single-dip aluminium-rich zinc galvanising
    19.
    发明授权
    Preparation of steel surfaces for single-dip aluminium-rich zinc galvanising 失效
    单浸镀铝富锌镀锌钢表面的制备

    公开(公告)号:US07160581B2

    公开(公告)日:2007-01-09

    申请号:US10501107

    申请日:2002-11-20

    IPC分类号: B05D1/18

    CPC分类号: C23G1/08 C23C2/02 C23C2/30

    摘要: A process is disclosed for the preparation of a steel surface for single-dip aluminium-rich zinc galvanizing. The process steps comprise: cleaning the surface so as to obtain less than 0.6 μg/cm2 residual dirt; pickling the surface; applying a protective layer to the surface by immersion in a flux solution comprising bismuth. This invention also relates to a continuous steel product coated with a layer of metallic bismuth.

    摘要翻译: 公开了用于制备用于单浸渍富铝锌镀锌的钢表面的方法。 工艺步骤包括:清洁表面以获得小于0.6mug / cm 2的残余污垢; 酸洗表面; 通过浸入包含铋的助熔剂溶液中将表面保护层施加。 本发明还涉及涂覆有金属铋层的连续钢产品。

    Method and device for pickling hot-rolled special steel strips
    20.
    发明授权
    Method and device for pickling hot-rolled special steel strips 失效
    酸洗热轧特种钢带的方法和装置

    公开(公告)号:US06843860B2

    公开(公告)日:2005-01-18

    申请号:US10258909

    申请日:2001-05-05

    申请人: Michael Haentjes

    发明人: Michael Haentjes

    IPC分类号: C23G1/08 C23G3/02 C23G1/02

    CPC分类号: C23G1/08

    摘要: The invention relates to a method for pickling hot-rolled special steel strips (1) having an austenite, ferrite and/or martensite structure. The inventive method is carried out in a pickling line (7) with pickling sections (8) containing acids and rinsing sections (9) containing rinsing water (15). The aim of the invention is to provide a method that does not require an additional stretch-leveling step for descaling. The costs for pickling are reduced by pickling the hot-rolled special steel strip (1) in the pickling sections (8) with hydrochloric acid (13) and rinsing it in the first rinsing sections (9) with azotic acid (14) or an equivalent substitute pickling medium (14b) and treating it in further rinsing sections (9) with rinsing water (15).

    摘要翻译: 本发明涉及一种用于酸洗具有奥氏体,铁素体和/或马氏体结构的热轧特殊钢带(1)的方法。 本发明的方法在酸洗线(7)中进行,其中酸洗部分(8)含有酸和含有漂洗水(15)的漂洗部分(9)。 本发明的目的是提供一种不需要额外的拉伸平整步骤来除垢的方法。 通过用盐酸(13)酸洗酸洗部分(8)中的热轧特殊钢带(1)并在氮化酸(14)或第一漂洗部分(9)中将其漂洗,从而减少酸洗成本 等效的替代酸洗介质(14b),并用冲洗水(15)在其它漂洗段(9)中进行处理。