公开(公告)号：US11319632B2

公开(公告)日：2022-05-03

申请号：US16326177

申请日：2017-08-16

Applicant: SHENZHEN CANDORTECH INCORPORATED COMPANY

Inventor： Chao Chen

IPC: C25D5/36 ,  C25D5/50 ,  C25D11/00 ,  C23C28/04 ,  C25D11/36 ,  C23C22/40 ,  C23F13/02

Abstract: Disclosed is a surface anti-corrosion treatment method for stainless steel. The method comprises the following steps: (1) performing chemical de-oiling and alkaline corrosion treatments on the surface of stainless steel by using a sodium hydroxide solution and a solution containing an alkaline corrosion active agent, and then washing with water; (2) performing, by using an oxidation solution, an oxidation treatment on the surface of the stainless steel treated in step (1), and then washing with water; (3) using the surface of the stainless steel treated in step (2) as a cathode and soaking same in an electrolyte for electrolysis, and then washing with water; and (4) placing the surface of the stainless steel treated in step (3) at a temperature of 50° C.-60° C. under a humidity of 60%-70%, and performing a hardening treatment. Also disclosed are the use of the treatment method in the treatment of a stainless steel part and a stainless steel part obtained after the treatment by means of the treatment method.

公开(公告)号：US20200276610A1

公开(公告)日：2020-09-03

申请号：US16877575

申请日：2020-05-19

Applicant: Ewald Dörken AG

Inventor： Melanie MÜLLER ,  Marcel ROTH ,  Ingo KLÜPPEL

IPC: B05D7/16 ,  C01B33/32 ,  C23C22/42 ,  C23C22/83 ,  C23C22/53 ,  C23C22/40 ,  C23C22/06 ,  C23C22/46

Abstract: The invention relates to a method for producing a silane-modified silicate. In order to obtain optimal corrosion protection properties, a silane compound according to the invention is at least partially hydrolyzed and/or condensed in the presence of a silicate compound at a pH value greater than or equal to 8 and then a pH value less than or equal to 7 is set by adding acid. The invention further relates to an aqueous acidic passivation composition for metal substrate coated with the passivation composition.

公开(公告)号：US10549506B2

公开(公告)日：2020-02-04

申请号：US15554903

申请日：2016-03-31

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Yasuaki Kawamura ,  Koji Akioka ,  Akihiro Sengoku

IPC: B32B15/01 ,  C23C2/06 ,  C23C2/28 ,  B05D1/28 ,  B05D3/02 ,  B05D7/14 ,  C22C38/54 ,  C22C38/50 ,  C22C38/26 ,  C22C38/22 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C23C22/80 ,  C23C22/40 ,  C23C2/40 ,  C23C28/00 ,  C23C30/00 ,  C23C22/07 ,  B32B15/18 ,  B32B15/04

Abstract: [Object] To provide a hot-dip zinc-based plated steel sheet excellent in coating film adhesiveness after hot pressing more conveniently.[Solution] A hot-dip zinc-based plated steel sheet according to the present invention includes: a hot-dip zinc-based plated steel sheet that is a base metal; and a surface treatment layer formed on at least one surface of the hot-dip zinc-based plated steel sheet, in which the surface treatment layer contains one or more oxides selected from zirconia, lanthanum oxide, cerium oxide, and neodymium oxide each having a particle size of more than or equal to 5 nm and less than or equal to 500 nm, in a range of more than or equal to 0.2 g/m2 and less than or equal to 2 g/m2 per one surface.

公开(公告)号：US09915006B2

公开(公告)日：2018-03-13

申请号：US14797035

申请日：2015-07-10

Applicant: YUKEN INDUSTRY CO., LTD.

Inventor： Yoshiki Hiramatsu

IPC: C23C22/30 ,  C23C22/46 ,  C25D5/48 ,  C25D3/22 ,  C25D5/50 ,  C23C22/40 ,  C23C22/53 ,  C23C22/00

CPC classification number: C25D5/48 ,  C23C22/40 ,  C23C22/46 ,  C23C22/53 ,  C23C2222/10 ,  C25D3/22 ,  C25D5/50

Abstract: A production method of a member having a surface provided thereon with a chemical conversion coating includes a contacting step and a washing step. The contacting step causes a reactive-type chemical conversion treating acidic composition to contact with a base material having a metal-based surface thereby forming a chemical conversion coating on the metal-based surface of the base material. The washing step washes the base material having been subjected to the contacting step to obtain a member having a surface provided thereon with the chemical conversion coating. The reactive-type chemical conversion treating acidic composition contains a water-soluble trivalent chromium-containing substance, a water-soluble titanium-containing substance, and a carboxylic acid compound. The acidic composition is free from a water-soluble cobalt-containing substance.

公开(公告)号：US09757811B2

公开(公告)日：2017-09-12

申请号：US14346132

申请日：2012-09-20

Applicant: Nippon Paint Surf Chemicals Co., Ltd.

Inventor： Norizumi Matsui ,  Yuko Wada ,  Akihiro Mizuno ,  Junsuke Hokka

IPC: C23C22/34 ,  C23C22/40 ,  B23K1/00 ,  C23C22/44 ,  C23C22/83 ,  F28F19/02 ,  F28F21/08 ,  B23P15/26 ,  C23C22/73 ,  C23C22/00

CPC classification number: B23K1/0012 ,  B05D2202/25 ,  B23P15/26 ,  C23C22/44 ,  C23C22/73 ,  C23C22/83 ,  C23C2222/20 ,  F28F19/02 ,  F28F21/084 ,  F28F2265/22 ,  Y10T29/49393

Abstract: A surface treatment method capable of imparting exceptional corrosion resistance and moisture resistance to an NB heat exchanger. The method includes subjecting an NB heat exchanger to a chemical conversion treatment to form a chemical conversion film on the surface thereof using a chemical conversion treatment agent that contains zirconium and/or titanium in a total amount of 5-5,000 ppm by weight, vanadium in an amount of 10-1,000 ppm by weight, and has a pH of 2-6; bringing the NB heat exchanger on whose surface the chemical conversion film is formed into contact with a hydrophilization agent containing a hydrophilic resin and a guanidine compound and/or a salt thereof; and baking the NB heat exchanger subjected to the contacting process, whereby a hydrophilic film is formed on the surface thereof.

公开(公告)号：US09499914B2

公开(公告)日：2016-11-22

申请号：US13822139

申请日：2011-09-29

Applicant: Takeshi Matsuda ,  Akira Matsuzaki ,  Katsutoshi Takashima

Inventor： Takeshi Matsuda ,  Akira Matsuzaki ,  Katsutoshi Takashima

IPC: C23C28/00 ,  C09D5/08 ,  C09D5/24 ,  C23C22/40 ,  C23C22/42 ,  C23C22/44 ,  C08G18/08 ,  C09D175/04 ,  C23C28/02

CPC classification number: C23C28/00 ,  C08G18/0814 ,  C09D5/084 ,  C09D5/24 ,  C09D175/04 ,  C23C22/40 ,  C23C22/42 ,  C23C22/44 ,  C23C28/021 ,  C23C28/025 ,  C23C2222/20 ,  Y10T428/12569

Abstract: A zinc or zinc alloy coated steel excellent in various properties including corrosion resistance and adhesion properties and, in particular, good conductivity is provided. A method for manufacturing a zinc or zinc alloy coated steel sheet includes: preparing a surface-treatment liquid for a the steel sheet, containing following components, by blending the including: (A) a specific resin emulsion; (B) a tetraalkoxysilane; (C) at least one type of silane coupling agent; (D) a chelating agent; (E) a vanadate compound; (F) a titanium compound; and water; and applying by coating the surface-treatment liquid to a surface of the steel sheet, heating and drying the surface of the steel sheet such that a coating amount per one surface is 200 to 1,000 mg/m2 to form a surface treatment coating film on the surface.

Abstract translation: 提供了具有优异的各种性能的锌或锌合金涂层钢，包括耐腐蚀性和粘附性，特别是良好的导电性。 一种锌或锌合金涂层钢板的制造方法，其特征在于，包括：（A）特定的树脂乳液，配制含有以下成分的钢板用表面处理液， （B）四烷氧基硅烷; （C）至少一种硅烷偶联剂; （D）螯合剂; （E）钒酸盐化合物; （F）钛化合物; 和水; 通过将表面处理液涂布在钢板表面上，对钢板表面进行加热干燥，使得每一面的涂布量为200〜1000mg / m 2，形成表面处理涂膜 表面。

公开(公告)号：US06869677B1

公开(公告)日：2005-03-22

申请号：US09980490

申请日：2000-06-01

Applicant: Toshiyuki Uehara ,  Chizuko Yoshida ,  Etsuko Yamazaki ,  Kazuya Nakada

Inventor： Toshiyuki Uehara ,  Chizuko Yoshida ,  Etsuko Yamazaki ,  Kazuya Nakada

IPC: B05D7/00 ,  C23C22/00 ,  C23C22/34 ,  C23C22/40 ,  C23C22/44 ,  C23C22/73 ,  C23C22/83 ,  F28F1/32 ,  F28F13/18 ,  F28F19/00 ,  F28F19/02 ,  F28F19/04 ,  F28F19/06 ,  B32B15/08

CPC classification number: C23C22/83 ,  B05D7/51 ,  B05D2202/25 ,  C23C22/34 ,  C23C22/44 ,  C23C22/73 ,  F28F19/06 ,  F28F21/084 ,  F28F2245/02 ,  Y10T428/27 ,  Y10T428/273 ,  Y10T428/31678

Abstract: An aluminum alloy thermal exchanger has an aluminum alloy metal surface without any harmful chromium ions and having good corrosion resistance and good hydrophilicity. The thermal exchanger includes an aluminum alloy metal having a surface provided with a first protective layer of chemical conversion coating produced by using a first treatment liquid, the first treatment liquid including a water soluble vanadium compound and a fluoro-zirconium complex compound. The first protective layer has a second protective layer of hydrophilic film thereon. The second protective layer is produced by adding and drying a second treatment liquid, the second treatment liquid including an aqueous polyvinyl alcohol polymer having a vinyl alcohol unit of more than 40% and another polymerization unit of less than 60 mol %, polyoxyethylene glycol having a weight average molecular weight of 6,000 and 1,000,000, a vanadium compound, and a zirconium compound, wherein, in the second treatment liquid, the ratio of the weight % of zirconium and vanadium is 40-350.

Abstract translation: 铝合金热交换器具有铝合金金属表面，无任何有害的铬离子，具有良好的耐腐蚀性和良好的亲水性。 热交换器包括铝合金金属，其表面具有通过使用第一处理液体产生的化学转化涂层的第一保护层，所述第一处理液体包括水溶性钒化合物和氟锆络合物。 第一保护层在其上具有亲水膜的第二保护层。 通过添加和干燥第二处理液来制造第二保护层，第二处理液包括乙烯醇单元含量大于40％的聚乙烯醇聚合物水溶液，另一聚合单元小于60摩尔％的聚乙烯醇聚合物，具有 重均分子量为6000和1,000,000，钒化合物和锆化合物，其中在第二处理液中，锆和钒的重量％的比例为40-350。

公开(公告)号：US06863743B2

公开(公告)日：2005-03-08

申请号：US10331963

申请日：2002-12-30

Applicant: Zoran Minevski ,  Cahit Eylem ,  Jason Maxey ,  Carl Nelson

Inventor： Zoran Minevski ,  Cahit Eylem ,  Jason Maxey ,  Carl Nelson

IPC: C23C20060101 ,  C23C2/00 ,  C23C22/07 ,  C23C22/40 ,  C23C22/42 ,  C23C22/44 ,  C23C22/48 ,  C23C22/60 ,  C23C22/62 ,  C23C22/66

CPC classification number: C23C22/62 ,  C23C22/40 ,  C23C22/42 ,  C23C22/44 ,  C23C22/66

Abstract: The present invention provides a conversion coating solution containing polymetalates and/or heteropolymetalates to oxidize the surface of various metal substrates. The polymetalates have the general formula MxOyn−, where M is selected from the group comprising Mo, V and W. The heteropolymetalates have the general formula BMxOyn−, where B is a heteroatom selected from P, Si, Ce, Mn or Co, and M is again selected from Mo, V, W or combinations thereof. The concentration of polymetalates and/or heteropolymetalates anions is preferably between about 1% and about 5% by weight. Examples of typical anions used include, but are not limited to, (PMo12O40)3−, (PMo10V2O40)5−, (MnPW11O39)5−, (PW12O40)3−, (SiMo12O40)4−, (SiW12O40)4−, (Mo7O24)6−, (CeMo12O42)8− and mixtures thereof.

Abstract translation: 本发明提供一种含有多金属酸盐和/或杂多金属酸盐以氧化各种金属基材表面的转化涂层溶液。 多金属酸盐具有通式M x O y n，其中M选自Mo，V和W组。杂多金属盐具有通式BM x O y n，其中B是选自P，Si，Ce的杂原子 ，Mn或Co，M再次选自Mo，V，W或其组合。 聚金属酸盐和/或杂多金属酸盐阴离子的浓度优选为约1重量％至约5重量％之间。 使用的典型阴离子的实例包括但不限于（PMo 12 O 40）3，（PMO 10 V 2 O 40）5，（MnPW 11 O 39）5，（PW 12 O 40）3 - ，（SiMo 12 O 40）4 - ，（SiW12O40）4，（Mo7O24）6 - ，（CeMo12O42）<8->及其混合物。

公开(公告)号：US6162503A

公开(公告)日：2000-12-19

申请号：US274641

申请日：1999-03-23

Applicant: Donald Ferrier

Inventor： Donald Ferrier

IPC: C09J5/02 ,  C23C22/40 ,  C23C22/52 ,  C23F1/18 ,  H05K3/38 ,  H05K3/46 ,  B05D3/00

CPC classification number: H05K3/383 ,  C09J5/02 ,  C09J2400/166 ,  C09J2400/226 ,  C23C22/40 ,  C23C22/52 ,  C23F1/18 ,  H05K3/4611 ,  H05K2203/0793 ,  H05K2203/0796 ,  H05K2203/124

Abstract: A process is described for treating metal surfaces with a composition comprising an oxidizer, an acid, a corrosion inhibitor, a benzotriazole with an electron withdrawing group in the 1-position which electron withdrawing group is a stronger electron withdrawer than a hydrogen group, and optionally, a source of adhesion enhancing species selected from the group consisting of molybdates, tungstates, tantalates, niobates, vanadates, isopoly or heteropoly acids of molybdenum, tungsten, tantalum, niobium, vanadium, and combinations of any of the foregoing in order to increase the adhesion of polymeric materials to the metal surface.

公开(公告)号：US4885032A

公开(公告)日：1989-12-05

申请号：US90969

申请日：1987-08-31

Applicant: Toshihiro Okai ,  Yoshiaki Okumura ,  Mitsuyuki Oda ,  Takashi Yamamoto ,  Teruaki Kuwajima

Inventor： Toshihiro Okai ,  Yoshiaki Okumura ,  Mitsuyuki Oda ,  Takashi Yamamoto ,  Teruaki Kuwajima

IPC: B22F1/00 ,  C09C1/62 ,  C09C1/64 ,  C09C3/06 ,  C23C22/40 ,  C23C22/42 ,  C23C22/68

CPC classification number: C09C1/62 ,  B22F1/0088 ,  C09C1/642 ,  C09C3/063 ,  C23C22/40 ,  C23C22/42 ,  C23C22/68 ,  C01P2002/02 ,  C01P2004/32 ,  C01P2004/34 ,  C01P2004/61 ,  C01P2006/60 ,  Y10T428/2991

Abstract: Disclosed is a metal particle having a maximum dimension of not more than 1 mm surface-treated with an aqueous solution containing phosphate ions, soluble ions of vanadium and oxygen. This particle can be a metallic pigment having excellent brightness retention and wetting properties to a binder resin.