公开(公告)号：US20180355453A1

公开(公告)日：2018-12-13

申请号：US15781911

申请日：2016-12-07

申请人： POSCO

发明人： Seok-Jong SEO

IPC分类号： C21D9/46 ,  C22C38/38 ,  C22C38/32 ,  C22C38/28 ,  C22C38/26 ,  C22C38/24 ,  C22C38/22 ,  C22C38/06 ,  C22C38/02 ,  C22C38/00 ,  C21D8/02 ,  C21D6/00 ,  C23G1/08

CPC分类号： C21D9/46 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/02 ,  C21D8/0205 ,  C21D8/0247 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/06 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C23G1/08

摘要： Provided is an ultra-high-strength steel sheet having high phosphatability and hole expandability, including, by wt %, carbon (C): 0.08% to 0.2%, silicon (Si): 0.05% to 1.3%, manganese (Mn): 2.0% to 3.0%, phosphorus (P): 0.001% to 0.10%, sulfur (S): 0.010% or less, aluminum (Al): 0.01% to 0.1%, chromium (Cr): 0.3% to 1.2%, boron (B): 0.0010% to 0.0030%, titanium (Ti): 0.01% to 0.05%, nitrogen (N): 0.001% to 0.01%, and a balance of iron (Fe) and inevitable impurities, satisfying 3.4≤Ti/N≤10, 1.0≤Mn/(Si+Cr), and 0.7≤Mn*/(Si*+Cr*)≤Mn/(Si+Cr) where Ti, N, Mn, Si, and Cr refer to a weight percent (wt %), and Mn*, Si*, and Cr* refer to an average of values obtained by GDS component analysis from the surface to the 0.1 μm position in the thickness direction.

公开(公告)号：US20180327877A1

公开(公告)日：2018-11-15

申请号：US15800500

申请日：2017-11-01

申请人： Hyundai Motor Company ,  Kia Motors Corporation ,  Hyundai Steel Company

发明人： Jae-Woong CHOI ,  Won-Seok YANG

IPC分类号： C21D8/00 ,  C22C38/48 ,  C22C38/42 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C21/02 ,  C21D6/00 ,  C23G1/08 ,  C23C18/48 ,  C23C18/16 ,  B32B15/01

CPC分类号： C21D8/005 ,  B32B15/012 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D2211/005 ,  C22C21/02 ,  C22C38/002 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/48 ,  C23C18/1637 ,  C23C18/1692 ,  C23C18/48 ,  C23G1/08

摘要： A low-alloy and corrosion-resistant steel for a vehicle, may include about 0.001 wt % to about 0.1 wt % of C, about 0.01 wt % to about 0.5 wt % of Si, about 0.1 wt % to about 0.6 wt % of Mn, more than 0 wt % and about 0.18 wt % or less of P, more than 0 wt % and less than about 0.02 wt % of S, about 0.001 wt % to about 0.03 wt % of Nb, more than 0 wt % and about 0.03 wt % or less of Cr, about 0.05 wt % to about 0.3 wt % of Cu, about 0.05 wt % to about 0.2 wt % of Ni, and more than 0 wt % and about 0.2 wt % or less of a combined weight of Sn and Sb, and the balance iron and inevitable impurities.

公开(公告)号：US20180053948A1

公开(公告)日：2018-02-22

申请号：US15546767

申请日：2016-02-09

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Yoshio TARUTANI

IPC分类号： H01M8/0228 ,  C22C38/50 ,  C22C38/48 ,  C22C38/46 ,  C22C38/44 ,  C22C38/42 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C23F1/28 ,  C23G1/08 ,  C21D9/52 ,  C23F17/00 ,  C23C14/08 ,  C23C14/34 ,  H01M8/1018 ,  H01M8/021 ,  H01M8/0215

CPC分类号： H01M8/0228 ,  C21D9/52 ,  C22C13/00 ,  C22C28/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C23C14/02 ,  C23C14/08 ,  C23C14/086 ,  C23C14/34 ,  C23F1/28 ,  C23F17/00 ,  C23G1/08 ,  C23G1/081 ,  C23G1/085 ,  H01M8/021 ,  H01M8/0215 ,  H01M8/1018 ,  H01M2008/1095

摘要： There is provided a separator for polymer electrolyte fuel cells having a substrate of a ferritic, having a chemical composition comprising, in mass %, C: 0.001 to 0.012%, Si: 0.01 to 0.6%, Mn: 0.01 to 0.6%, P: 0.035% or less, S: 0.01% or less, Cr: 22.5 to 35.0%, Mo: 0.01 to 4.5%, Ni: 0.01 to 2.5%, Cu: 0.01 to 0.6%, Sn: 0.01 to 1.0%, In: 0.001 to 0.30%, N: 0.015% or less, V: 0.01 to 0.35%, and Al: 0.001 to 0.050%, and the calculated value of {Content of Cr (%)+3×Content of Mo (%)} being 22.5 to 45.0, and includes a surface modified layer containing O: less than 30% and the balance: Sn and In. A polymer electrolyte fuel cell including the separator is remarkably excellent in corrosion resistance in an in-cell environment.

公开(公告)号：US20180037969A1

公开(公告)日：2018-02-08

申请号：US15556448

申请日：2016-02-16

申请人： JFE Steel Corporation

发明人： Shimpei Yoshioka ,  Katsutoshi Takashima ,  Kohei Hasegawa ,  Yoshimasa Funakawa

IPC分类号： C21D9/46 ,  C22C38/16 ,  C22C38/14 ,  C22C38/12 ,  C23G1/08 ,  C22C38/06 ,  C22C38/02 ,  C22C38/00 ,  C21D8/02 ,  C21D6/00 ,  C22C38/38 ,  C22C38/08

CPC分类号： C21D9/46 ,  C21D6/001 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0247 ,  C21D8/0273 ,  C21D2211/001 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/38 ,  C22C38/60 ,  C23G1/00 ,  C23G1/08 ,  C23G1/081

摘要： A steel sheet contains C: 0.15% to 0.22%, Si: 1.0% to 2.0%, Mn: 1.7% to 2.5%, P: 0.05% or less, S: 0.02% or less, Al: 0.01% to 0.05%, N: 0.005% or less, O: 0.01% or less, and the balance being iron and unavoidable impurities while satisfying [Si]/[Mn]≧0.5 ([Si] and [Mn] represent Si and Mn contents, wherein the steel sheet has a structure including, in terms of area fraction, 60% to less than 100% of tempered martensite, 5% or less including 0% of untransformed austenite, and the balance being ferrite, and the ferrite has an average crystal grain size of less than 3.5 μm, wherein less than 10 particles/100 μm2 of Si—Mn compound oxide particles having a circle equivalent diameter of 5 μm or less are present on a surface of the steel sheet, and the surface is covered with Si-based oxide at a coverage of 1% or less.

公开(公告)号：US20170369965A1

公开(公告)日：2017-12-28

申请号：US15541918

申请日：2016-01-05

申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

发明人： Muneaki IKEDA ,  Yuichi FUTAMURA ,  Michiharu NAKAYA

IPC分类号： C21D9/46 ,  C21D8/02 ,  C23C2/06 ,  C23C2/02 ,  C22C38/32 ,  C22C38/28 ,  C22C38/22 ,  C22C38/18 ,  C22C38/16 ,  C22C38/14 ,  C22C38/12 ,  C22C38/08 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C23C2/40 ,  C23F17/00

CPC分类号： C21D9/46 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0278 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/22 ,  C22C38/28 ,  C22C38/32 ,  C23C2/02 ,  C23C2/06 ,  C23C2/40 ,  C23F17/00 ,  C23G1/06 ,  C23G1/08

摘要： A high-strength plated steel sheet has a plated layer on the surface of a base steel sheet and contains predetermined steel components. The steel sheet includes, in the order from the interface of the base steel sheet and the plated layer towards the base steel sheet: a soft layer having a Vickers hardness that is 90% or less of the Vickers hardness at a portion t/4 of the base steel sheet, where t is a sheet thickness of the base steel sheet; and a hard layer containing martensite and bainite, and ferrite in predetermined ranges. The average depth D of the soft layer is 20 μm or greater, and the average depth d of an internal oxide layer is 4 μm or greater and smaller than D.

公开(公告)号：US20170210980A1

公开(公告)日：2017-07-27

申请号：US15515458

申请日：2015-09-29

申请人： Fluid Energy Group Ltd.

发明人： Clay PURDY ,  Darren THATCHER ,  John GARNER ,  Bruce ULMER

IPC分类号： C09K8/72 ,  C23F15/00 ,  C09K8/528

CPC分类号： C09K8/72 ,  C09K8/528 ,  C09K8/74 ,  C09K2208/02 ,  C09K2208/32 ,  C23F11/04 ,  C23F15/00 ,  C23G1/08

摘要： A synthetic acid composition for use in oil industry activities, said composition comprising: urea and hydrogen chloride in a molar ratio of not less than 0.1:1 and formic acid or a derivative thereof.

公开(公告)号：US20160355900A1

公开(公告)日：2016-12-08

申请号：US15243610

申请日：2016-08-22

申请人： ArcelorMittal

发明人： Javier Gil Otin ,  Antoine Moulin

IPC分类号： C21D9/46 ,  C22C38/32 ,  C22C38/28 ,  C22C38/22 ,  C22C38/14 ,  B22D11/00 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D8/02 ,  C23G1/00 ,  C22C38/38 ,  C22C38/12

CPC分类号： C21D9/46 ,  B22D11/001 ,  C21D8/02 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D9/52 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/22 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C23G1/00 ,  C23G1/08

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

摘要翻译： 本发明提供一种强度大于1200MPa的冷轧退火钢板，其组成包括：重量含量：0.10％≤C≤0.25％，1％≤Mn≤3％，A ≧0.010％，Si≤2.990％，S≤0.015％，P≤0.1％，N≤0.008％，1％≤Si+Al≤3％，可知Cr +3Mo≥0.3％，Ti 其量使得Ti /N≥4和Ti≤0.040％。 组合物的余量包括由冶炼产生的铁和不可避免的杂质。 钢的显微组织包括15％至90％的贝氏体，其余包括马氏体和残余奥氏体。

公开(公告)号：US20150119310A1

公开(公告)日：2015-04-30

申请号：US14593333

申请日：2015-01-09

申请人： Green Products & Technologies, L.L.C.

发明人： John T. MacDonald

IPC分类号： C11D11/00 ,  C11D3/20 ,  C11D3/30 ,  C11D3/04 ,  C11D3/32

CPC分类号： C09K8/528 ,  B01D41/04 ,  B08B3/00 ,  B08B3/04 ,  C09K8/035 ,  C09K8/54 ,  C09K8/62 ,  C11D1/62 ,  C11D1/72 ,  C11D3/042 ,  C11D3/2003 ,  C11D3/2006 ,  C11D3/2068 ,  C11D3/2072 ,  C11D3/30 ,  C11D3/323 ,  C11D7/50 ,  C11D11/0023 ,  C11D11/0041 ,  C11D11/0052 ,  C23G1/08

摘要： A composition including HCl, urea, complex substituted keto-amine-hydrochloride, an alcohol, an ethoxylate, and a ketone is provided in a method for solubilizing calcium carbonate in an aqueous suspension or dispersion of calcium carbonate.

摘要翻译： 在碳酸钙的水性悬浮液或分散体中溶解碳酸钙的方法中提供了包含HCl，脲，络合物取代的酮 - 胺盐酸盐，醇，乙氧基化物和酮的组合物。

公开(公告)号：US20140334965A1

公开(公告)日：2014-11-13

申请号：US14445147

申请日：2014-07-29

申请人： HENKEL AG & CO. KGAA

发明人： Ioannis DEMERTZIS ,  Mauro RIGAMONTI ,  Paolo GIORDANI

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。

公开(公告)号：US08506731B2

公开(公告)日：2013-08-13

申请号：US12864102

申请日：2009-01-21

申请人： Manfred Meurer ,  Ronny Leuschner ,  Michael Steinhorst

发明人： Manfred Meurer ,  Ronny Leuschner ,  Michael Steinhorst

IPC分类号： C21D8/02 ,  B05D3/00 ,  C23C2/12 ,  C23C2/28

CPC分类号： C23C2/02 ,  B32B15/013 ,  C21D1/74 ,  C21D8/0236 ,  C21D8/0273 ,  C21D8/0278 ,  C22C18/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/38 ,  C22C38/58 ,  C23G1/00 ,  C23G1/08

摘要： A method for coating a hot-rolled or cold-rolled steel flat product, containing 6-30% wt. Mn, with a metallic protective layer by hot-clip coating in a melt bath. The coating, achieved with increased production reliability, is optimised by the steel flat product being subjected to a pickling treatment in which the manganese oxide adhering to the steel flat product is essentially fully removed in the pickling bath before the steel flat product enters the melt bath.

摘要翻译： 一种用于涂覆含有6-30重量％的热轧或冷轧钢扁平产品的方法。 Mn，通过在熔融浴中热夹涂覆而具有金属保护层。 通过进行酸洗处理的钢平板产品优化了涂层，该钢板产品在钢平板产品进入熔融浴之前，粘附在钢平板产品上的氧化锰基本上完全去除在酸洗槽中 。