公开(公告)号：US20160010172A1

公开(公告)日：2016-01-14

申请号：US14772788

申请日：2014-03-06

Applicant: THYSSENKRUPP STEEL EUROPE AG ,  THYSSENKRUPP RASSELSTEIN GMBH

Inventor： Erhard Holleck ,  Eberhard Sowka ,  Burkhard Kaup ,  Stephan Schiester

IPC: C21D8/04 ,  B22D11/126 ,  B22D11/12 ,  C21D1/26 ,  B21B1/22 ,  C25D5/36 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  B22D11/14 ,  C21D6/00

CPC classification number: C21D8/0436 ,  B21B1/22 ,  B21B1/46 ,  B21D35/005 ,  B21D51/26 ,  B22D11/1206 ,  B22D11/126 ,  B22D11/14 ,  C21D1/26 ,  C21D6/005 ,  C21D6/008 ,  C21D8/041 ,  C21D8/0426 ,  C21D8/0463 ,  C22B9/04 ,  C22B9/10 ,  C22C38/001 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C25D5/36

Abstract: A method is disclosed for the operationally reliable production of a cold-rolled flat steel product of ≦0.5 mm in thickness for deep-drawing and ironing applications. In the method, a steel melt which (in wt %) comprises up to 0.008% C, up to 0.005% Al, up to 0.043% Si, 0.15-0.5% Mn, up to 0.02% P, up to 0.03% S, up to 0.020% N and in each case optionally up to 0.03% Ti and up to 0.03% Nb and, as a remainder, iron and unavoidable impurities, is, with the omission of a Ca treatment, subjected to a secondary metallurgical treatment which, in addition to a vacuum treatment, comprises a ladle furnace treatment and during which the steel melt to be treated is kept under a slag, the Mn and Fe contents of which are, in sum total,

Abstract translation: 公开了一种用于可操作地生产厚度为0.5mm的冷轧扁钢产品的方法，用于深冲压和熨烫应用。 在该方法中，以（重量％％）以上，含有高达0.008％的C，至多0.005％的Al，至多0.043％的Si，0.15-0.5％的Mn，至多0.02％的P，至多0.03％的S， 高达0.020％N，并且在每种情况下可选择地高达0.03％的Ti和至多0.03％的Nb，并且作为剩余部分，铁和不可避免的杂质，在省略Ca处理的情况下，进行二次冶金处理， 除了真空处理之外，还包括钢包炉处理，并且在此期间将要处理的钢熔体保持在炉渣下，其中Mn和Fe的含量总计<15重量％。 从钢熔体中，制造薄板坯或铸造带材，随后热轧以形成厚度小于2.5mm的热轧带材并卷绕形成线圈。 随后，将热带冷轧以形成厚度达0.5mm的扁钢产品。

公开(公告)号：US20150050517A1

公开(公告)日：2015-02-19

申请号：US14384827

申请日：2012-12-18

Applicant: THYSSENKRUPP RASSELSTEIN GMBH

Inventor： Harald Baulig ,  Reiner Sauer ,  Helmut Oberhoffer ,  Martin Schlupp

IPC: C09K11/06 ,  B05D5/06 ,  C09D5/22 ,  B32B15/01

CPC classification number: C09K11/06 ,  B05D5/06 ,  B32B15/013 ,  B32B2250/02 ,  B32B2255/24 ,  C09D5/22 ,  C09D7/48 ,  C09D171/02 ,  Y10T428/12556

Abstract: The invention relates to a method for treating a steel band or steel plate provided with a metal coating with an after-treatment agent, which contains at least one polyalkylene glycol and is applied as a liquid solution to the surface of the metal coating. According to the invention, in order to achieve improved wetting and adhesion of the covering and at the same time the lowest possible coefficient of friction of the coated surface and in order to ensure good workability of the coated steel band or plate, the after-treatment agent contains a fluorescent antioxidant in addition to the polyalkylene glycol. The invention further relates to a steel band or steel plate provided with a metal coating, particularly a tin plate, which, on the surface of the metal coating, has a thin coat of an after-treatment agent which contains polyalkylene glycol and a fluorescent antioxidant.

Abstract translation: 本发明涉及一种用于处理具有后处理剂的金属涂层的钢带或钢板的方法，所述后处理剂含有至少一种聚亚烷基二醇并作为液体溶液施加到金属涂层的表面。 根据本发明，为了实现覆盖物的改善的润湿和粘附，同时涂覆表面的最低可能摩擦系数，为了确保涂层钢带或板的良好的可加工性，后处理 除了聚亚烷基二醇以外，还含有荧光抗氧化剂。 本发明还涉及一种具有金属涂层，特别是锡板的钢带或钢板，其在金属涂层的表面上具有包含聚亚烷基二醇和荧光抗氧化剂的后处理剂的薄膜 。

公开(公告)号：US20150024137A1

公开(公告)日：2015-01-22

申请号：US14332078

申请日：2014-07-15

Applicant: ThyssenKrupp Rasselstein GmbH

Inventor： Andrea Marmann ,  Michael Wild ,  Paul Michels

IPC: B05C11/02 ,  B05D1/40 ,  B05D1/02 ,  B05D3/04 ,  B05D3/12

CPC classification number: B05C11/021 ,  B05C11/025 ,  B05D1/02 ,  B05D1/40 ,  B05D3/002 ,  B05D3/0218 ,  B05D3/0254 ,  B05D3/0466 ,  B05D3/12 ,  B05D2202/10 ,  B05D2252/02 ,  C23C22/00 ,  C23C22/76

Abstract: An apparatus and method for the application of an aqueous treatment solution onto the surface of a steel strip that is moved, at a prespecified strip speed, in a direction of movement of the strip, with the following steps: drying of the moving steel strip with a gas flow; application of the aqueous solution on at least one surface of the steel strip with a rotary sprayer with several spray rotors that are situated next to one another, transverse to the direction of movement of the strip, to which the aqueous treatment solution is supplied and which are rotated by a drive, so as to spray the treatment solution, as a result of centrifugal force, in the form of a spray jet, onto the surface of the steel strip and, there, to form a wet film of the aqueous treatment solution; equalization of the applied wet film of the aqueous treatment solution by driven smoothing rollers; and drying of the applied wet film of the aqueous treatment solution.

Abstract translation: 一种用于将水处理溶液施加到钢带表面上的装置和方法，该钢带的表面以预定的剥离速度沿条带的移动方向移动，步骤如下：用移动的钢带 气流; 使用旋转喷雾器将水溶液施加到钢带的至少一个表面上，所述旋转喷雾器具有多个彼此相邻的喷雾转子，横向于供应水处理溶液的条带的运动方向，以及哪个 通过驱动器旋转，以便将作为离心力的结果以喷射射流的形式喷射到钢带的表面上，并且形成水处理溶液的湿膜 ; 通过驱动的平滑辊均匀化水处理溶液的湿膜; 并干燥所用的水溶液的湿膜。

公开(公告)号：US20150010779A1

公开(公告)日：2015-01-08

申请号：US14365654

申请日：2012-11-30

Applicant: ThyssenKrupp Rasselstein GmbH

Inventor： Anika Szesni ,  Helmut Oberhoffer ,  Martin Schlupp ,  Dirk Matusch ,  Reiner Sauer

IPC: C21D9/46 ,  C23F17/00 ,  C21D1/18 ,  C22C38/00 ,  C22C38/04 ,  C22C38/02 ,  C22C38/06 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  B32B15/01 ,  C21D1/42

CPC classification number: C21D9/46 ,  B32B15/01 ,  B32B15/012 ,  B32B15/013 ,  B32B15/015 ,  B65D1/12 ,  C21D1/18 ,  C21D1/26 ,  C21D1/42 ,  C21D8/0236 ,  C21D8/0273 ,  C21D9/52 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/18 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C23C2/06 ,  C23C2/26 ,  C23C2/28 ,  C23F17/00 ,  Y02P10/253 ,  Y10T428/12 ,  Y10T428/12722 ,  Y10T428/12757 ,  Y10T428/12799 ,  Y10T428/12854 ,  Y10T428/12972

Abstract: The invention relates to a method for producing packaging steel consisting of a cold-rolled steel sheet made of unalloyed or low-alloy steel having a carbon content of less than 0.1%. In order to provide high-strength packaging steel that has good formability and high corrosion resistance and can be produced in as energy-saving a manner as possible, the steel sheet according to the invention is first coated with a metallic coating and then annealed in a recrystallising manner at a heating rate of more than 75 K/s and preferably more than 100 K/s to temperatures of more than 700° C., such that the metallic coating melts. The coated and annealed steel sheet is then quenched to normal temperature at a cooling rate of at least 100 K/s.

Abstract translation: 本发明涉及一种包含钢的制造方法，该方法包括由碳含量小于0.1％的非合金或低合金钢制成的冷轧钢板。 为了提供具有良好的成形性和高耐腐蚀性并且可以以尽可能节能的方式制造的高强度包装钢，首先用本发明的钢板涂覆金属涂层，然后在 以超过75K / s，优选大于100K / s的加热速率重新结晶至高于700℃的温度，使得金属涂层熔化。 然后将涂覆和退火的钢板以至少100K / s的冷却速率淬火至常温。

公开(公告)号：US20210277505A1

公开(公告)日：2021-09-09

申请号：US17193477

申请日：2021-03-05

Applicant: thyssenkrupp Rasselstein GmbH

Inventor： Burkhard KAUP ,  Luisa-Marie HEINE ,  Blaise MASSICOT

IPC: C22C38/04 ,  C21D8/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/06

Abstract: A packaging sheet metal product from a cold-rolled steel sheet with a thickness of less than 0.6 mm has a specified composition. The packaging sheet metal product during biaxial deformation in a bulge test has a lower yield strength (SbeL) of more than 300 MPa and a corresponding elongation at break (Ab) of more than 10 % and in the plastic region between the Lüders elongation (Abe) and an upper (plastic) elongation limit of εmax=0.5·Ab(SbeL/Sbm) has a biaxial stress/strain diagram σB(ε) that can be represented by a function εmax=b·εn, with: σB is the true biaxial stress in MPa; ε is the amount of true elongation in the thickness direction in %; Sbm is the absolute strength; b is a proportionality factor; and n is a strain-hardening exponent. A strengthening of the packaging sheet product in the thickness direction is characterized by a strain-hardening exponent of n≥0.353−5.1·SbeL/104 MPa.

公开(公告)号：US10920309B2

公开(公告)日：2021-02-16

申请号：US15506911

申请日：2015-07-02

Applicant: ThyssenKrupp Rasselstein GmbH ,  ThyssenKrupp AG

Inventor： Burkhard Kaup ,  Blaise Massicot ,  Dirk Matusch

IPC: C23C8/26 ,  C22C38/00 ,  C21D8/02 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C23C8/80 ,  C23F17/00 ,  C21D8/04

Abstract: A nitrided packaging steel in the form of a flat steel product and method for producing a nitrided packaging steel with a carbon content of 10-1000 ppm and uncombined nitrogen, dissolved in the steel, of more than 100 ppm. The nitriding is performed in two stages: a first stage, in which a molten steel is nitrided to a nitrogen content of at most 160 ppm by introducing a nitrogen-containing gas and/or a nitrogen-containing solid into the molten steel, and a second stage, in which a flat steel product produced from the nitrided molten steel by cold rolling is treated with a nitrogen-containing gas in order to increase further the amount of uncombined nitrogen in the flat steel product.

公开(公告)号：US20200325590A1

公开(公告)日：2020-10-15

申请号：US16840677

申请日：2020-04-06

Applicant: thyssenkrupp Rasselstein GmbH

Inventor： Andrea MARMANN ,  Christoph MOLLS ,  Sebastian HARTUNG

IPC: C25D7/06 ,  C25D3/06 ,  C25D17/28 ,  C25D17/02

Abstract: A method of producing a metal strip coated with a coating, said coating containing chromium metal and chromium oxide and being electrolytically deposited from an electrolyte solution that contains a trivalent chromium compound and at least one salt for increasing conductivity and at least one acid or one base for setting a desired pH value, onto the metal strip by bringing the metal strip into electrolytically effective contact with the electrolyte solution during an electrolysis time. The metal strip is successively passed at a predefined strip travel speed in a strip travel direction through a plurality of electrolysis tanks successively arranged in the strip travel direction. At least the first electrolysis tank, as viewed in the strip travel direction, or a front group of electrolysis tanks is filled with a first electrolyte solution and the last electrolysis tank, as viewed in the strip travel direction, or a rear group of electrolysis tanks is filled with a second electrolyte solution. The second electrolyte solution contains no additional components apart from the trivalent chromium compound as well as the at least one salt and the at least one acid or base and is especially free of organic complexing agents and free of buffering agents.

公开(公告)号：US10301702B2

公开(公告)日：2019-05-28

申请号：US15313729

申请日：2015-05-11

Applicant: JFE STEEL CORPORATION ,  THYSSENKRUPP RASSELSTEIN GMBH ,  Thomas Fechner

Inventor： Takumi Tanaka ,  Yusuke Nakagawa ,  Masaki Tada ,  Katsumi Kojima ,  Hiroki Nakamaru ,  Kathleen Stein-Fechner ,  Burkhard Kaup

IPC: C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C21D9/46 ,  C21D9/48 ,  C21D8/02 ,  C21D8/04 ,  C22C38/00 ,  B22D11/00 ,  C22C38/02 ,  C23G1/02

Abstract: A can steel plate includes: equal or less than 0.0030% by mass of C; equal or less than 0.02% by mass of Si; 0.05-0.60% by mass of Mn; equal or less than 0.020% by mass of P; equal or less than 0.020% by mass of S; 0.010% to 0.100% by mass of Al; 0.0010-0.0050% by mass of N; 0.001-0.050% by mass of Nb; and balance Fe and impurities. Intensity of (111) [1-21] orientation (where −2 represents 2 with bar in Miller indices) and intensity of (111)[1-10] orientation (where −1 represents 1 with bar in Miller indices) satisfy the following equation (1), and in a rolling direction and 90° direction from the rolling direction in a horizontal plane, tensile strength TS (MPa) and fracture elongation El (%) satisfy relations of the following equations (2) and (3). (Intensity of (111) [1-21] orientation)/(Intensity of (111) [1-10] orientation)>0.9 . . . (1), TS>550 . . . (2), El>−0.02×TS+17.5 . . . (3).

公开(公告)号：US10227671B2

公开(公告)日：2019-03-12

申请号：US14770184

申请日：2013-10-14

Applicant: THYSSENKRUPP RASSELSTEIN GMBH

Inventor： Helmut Oberhoffer ,  Anika Szesni ,  Manuel Köhl ,  Dimitrios Nouskalis ,  Reiner Sauer

IPC: C21D1/26 ,  C21D1/42 ,  C21D1/74 ,  C21D6/00 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C23F17/00 ,  C25D3/30 ,  C25D7/00 ,  C23C2/28 ,  C21D9/52 ,  C21D8/02 ,  C21D9/60

Abstract: A method for producing a corrosion-resistant steel sheet made of an unalloyed or low-alloy and cold-rolled steel having a carbon content of less than 0.1 wt %. The method includes the following steps: applying a metal coating to the steel sheet; annealing the coated steel sheet in a recrystallizing manner by heating the coated steel sheet to temperatures in the recrystallization range by electromagnetic induction in an inert-gas atmosphere; and quenching the coated and annealed steel sheet. The metal coating is fused on during the recrystallization annealing.

公开(公告)号：US20190032222A1

公开(公告)日：2019-01-31

申请号：US15971430

申请日：2018-05-04

Applicant: thyssenkrupp Rasselstein GmbH ,  thyssenkrupp AG

Inventor： Andrea MARMANN ,  Tanja LOMMEL ,  Tatjana LEGCHILO ,  Martin SCHLEICH

IPC: C23C22/36 ,  C23C22/78 ,  C23C22/82

Abstract: A sheet steel, in particular strip-shaped blackplate, with a conversion coating which is prepared from components dissolved in water. The components are selected from the group of i) hexafluorotitanate, ii) zinc phosphate, iii) phosphoric acid, iv) a mixture of any of i) to iii), provided that the components i), ii) and iii) do not contain any organic ingredients.