公开(公告)号：EP3517655A1

公开(公告)日：2019-07-31

申请号：EP18153360.5

申请日：2018-01-25

申请人： Franz GmbH

发明人： Franz, Wolf-Dieter

IPC分类号： C25D3/06 ,  C25D3/08 ,  C25D21/14 ,  C25D21/18 ,  C25D3/12 ,  C25D3/38 ,  C25D5/12 ,  C25D5/14 ,  C23C18/16 ,  C23C18/20 ,  C23C18/30 ,  C23C18/32 ,  C25D5/40

摘要： Die Erfindung betrifft ein Verfahren zum Schwarzverchromen von Oberflächen in einem Bad mit Chromsäure, bei welchem Verfahren mit einem Salz der Fluorwasserstoffsäure eine erste wässrige Lösung hergestellt wird, und dann die erste wässrige Lösung dem Bad mit der Chromsäure dosiert zugeführt wird.

公开(公告)号：EP3443145A1

公开(公告)日：2019-02-20

申请号：EP17786348.7

申请日：2017-04-11

申请人： MacDermid Acumen, Inc.

发明人： HARA, Masahiro ,  NISHIYAMA, Tatsuya

IPC分类号： C25D3/06 ,  C25D3/10 ,  C25D7/00

公开(公告)号：EP2922983B1

公开(公告)日：2019-02-20

申请号：EP13794902.0

申请日：2013-11-21

申请人： Tata Steel IJmuiden BV

发明人： WIJENBERG, Jacques Hubert Olga Joseph ,  STEEGH, Michiel ,  PENNING, Jan Paul ,  PORTEGIES ZWART, Ilja ,  DE VOOYS, Arnoud Cornelis Adriaan

IPC分类号： C25D3/06 ,  C25D5/48 ,  C25D7/06 ,  C25D5/34 ,  C25D5/36 ,  C25D9/08 ,  C25D9/10

公开(公告)号：EP3000918B1

公开(公告)日：2018-10-24

申请号：EP14186089.0

申请日：2014-09-24

申请人： topocrom systems AG

发明人： Müll, Karl ,  Bolch, Thomas

IPC分类号： C25D5/04 ,  C25D5/14 ,  C25D5/36 ,  C25D7/00 ,  C25D17/02 ,  C25D21/02 ,  C25D21/04 ,  C25D3/06 ,  C25D21/12

CPC分类号： C25D5/04 ,  C25D3/06 ,  C25D5/14 ,  C25D5/36 ,  C25D7/00 ,  C25D17/02 ,  C25D21/02 ,  C25D21/04 ,  C25D21/12

公开(公告)号：EP2980280B1

公开(公告)日：2018-05-02

申请号：EP14773737.3

申请日：2014-03-26

申请人： Kabushiki Kaisha Riken

发明人： TAKASHINA Yousuke

IPC分类号： C25D15/00 ,  C25D3/06 ,  C25D7/10 ,  F16C33/12 ,  C10M103/06

CPC分类号： C25D3/06 ,  C10M103/06 ,  C25D7/10 ,  C25D15/00 ,  F16C33/121 ,  F16C33/125 ,  F16C2204/44

摘要： To provide a trivalent chromium plating film, in which the generation of cracks penetrating from the film surface to a substrate interface is suppressed, and a sliding member coated with the trivalent chromium plating film, plating is conducted with a chromium plating bath containing trivalent chromium as a chromium source, with a second phase dispersed in a planar and/or fibrous form, such that the second phase in a planar and/or fibrous form is dispersed in the hard chromium plating film to prevent or deflect the propagation of cracks, and to suppress the increase of the crack width, thereby suppressing the propagation of cracks in the hard chromium plating film.

公开(公告)号：EP3114258A4

公开(公告)日：2018-01-03

申请号：EP15757833

申请日：2015-03-05

申请人： MACDERMID ACUMEN INC

发明人： MERTENS MARC ,  TOOTH RICHARD ,  HERDMAN RODERICK D ,  CLARKE TERENCE ,  PEARSON TREVOR

IPC分类号： C25D3/06 ,  C25B1/02 ,  C25D5/10 ,  C25D5/12 ,  C25D5/14 ,  C25D5/48 ,  C25D9/08

CPC分类号： C25D3/06 ,  C25D5/48 ,  C25D9/08 ,  Y10T428/12854

摘要： A method of treating a substrate, wherein the substrate comprises a layer deposited from a trivalent chromium electrolyte, is described. The method includes the steps of providing an anode and the chromium(III) plated substrate as a cathode in an electrolyte comprising (i) a trivalent chromium salt; and (ii) a complexant; and passing an electrical current between the anode and the cathode to passivate the chromium(III) plated substrate. The substrate may be first plated with a plated nickel layer so that the chromium(III) plated layer is deposited over the nickel plated layer.

公开(公告)号：EP3253906A2

公开(公告)日：2017-12-13

申请号：EP16707509.2

申请日：2016-02-03

申请人： University of Leicester

发明人： ABBOTT, Andrew Peter ,  RYDER, Karl Scott ,  HARRIS, Robert

IPC分类号： C25D3/66 ,  C25D3/06 ,  C25D3/10 ,  C25D5/04

摘要： An electrolyte for the electrodeposition of chromium is described. The electrolyte comprises: (A) water; (B) at least one chromium salt; and (C) at least one complexing agent, wherein the molar ratio of components B:C is 1:1 to 1:50. The electrolyte complexing agent may comprise an ionic liquid such as choline chloride (ChCl), urea or glycerol. Additives can also be added to the electrolyte such as boric acid, cirtic acid, methyl nicotinate (C7H7NO2) or sodium phosphate . Sodium chloride (NaCl) or sodium (NaI) may also be added. The electrolyte can also contain 10-25% water.

公开(公告)号：EP3167100A1

公开(公告)日：2017-05-17

申请号：EP14897234.2

申请日：2014-07-11

申请人： Savroc Ltd

发明人： MIETTINEN, Juha ,  RÄISÄ, Jussi

IPC分类号： C25D3/06 ,  C25D5/12 ,  C25D5/50 ,  C23C28/02

摘要： The invention relates to a chromium-based coating comprising at least one layer rich in crystalline phase or phases of nickel (Ni) and/or Ni compounds, and at least one layer rich in crystal-line phase or phases of chromium (Cr) and/or Cr compounds, Cr being electroplated from a trivalent chromium bath. The coating is characterized in that the it further comprises one or more crystalline phases of chromium-nickel-phosphorus (CrNiP), which CrNiP phase has been produced by heat treating a coating comprising at least one layer of nickel-phosphorus (NiP) and at least one layer of Cr. The invention also relates to a method for producing a chromiumbased coating and to a coated object.

摘要翻译： 本发明涉及一种铬基涂层，其包含至少一层富含镍（Ni）和/或镍化合物的结晶相或多相的层，以及至少一层富含铬（Cr）和 /或Cr化合物，Cr从三价铬浴中电镀。 该涂层的特征在于其还包含一种或多种铬 - 镍 - 磷（CrNiP）结晶相，该CrNiP相通过热处理包含至少一层镍 - 磷（NiP）和至少一层镍 - 磷 至少一层铬。 本发明还涉及用于生产铬基涂层的方法和涂覆物体。

公开(公告)号：EP3147389A1

公开(公告)日：2017-03-29

申请号：EP15186917.9

申请日：2015-09-25

申请人： Enthone GmbH ,  Volkswagen Aktiengesellschaft

发明人： KÖNIGSHOFEN, Andreas ,  KIEFER, Ronny

IPC分类号： C25D3/06 ,  C25D5/14 ,  C25D15/00 ,  C25D3/56

CPC分类号： C25D15/00 ,  C25D3/06 ,  C25D3/562 ,  C25D5/14

摘要： The invention relates to a corrosion protection layer system for metal surfaces, said layer system comprising as the two top most layers: a) a discontinuous nickel-phosphorous layer and b) a chromium layer plated from a trivalent chromium electrolyte solution, as well as to a method of producing such a layer system. The inventive layer system is capable to combine the good corrosion resistance of the nickel-phosphorous layer against sodium chloride with the protective power of the chromium layer from the trivalent plating process against magnesium and calcium salts, especially without the need for any post-treatment.

摘要翻译： 本发明涉及一种用于金属表面的腐蚀保护层系统，所述层系统包括两个最上层：a）不连续的镍 - 磷层和b）从三价铬电解质溶液镀覆的铬层，以及 制造这种层系的方法。 本发明的层系统能够将镍 - 磷层与氯化钠的良好的耐腐蚀性与铬层的保护力相对于镁和钙盐进行三价镀覆，特别是不需要任何后处理。

公开(公告)号：EP3097222A1

公开(公告)日：2016-11-30

申请号：EP15701521.5

申请日：2015-01-26

申请人： COVENTYA S.p.A.

发明人： DAL ZILIO, Diego ,  SCHIAVON, Gianluigi

IPC分类号： C25D3/06 ,  C25D9/08

CPC分类号： C25D3/06 ,  C25D3/10 ,  C25D17/002

摘要： The present invention refers to an electroplating bath for depositing chromium which comprises at least one trivalent chromium salt, at least one complexing agent, at least one halogen salt and optionally further additives. Moreover, the invention refers to a process for depositing chromium on a substrate using the mentioned electroplating bath.

摘要翻译： 本发明涉及一种用于沉积铬的电镀浴，其包括至少一种三价铬盐，至少一种络合剂，至少一种卤素盐和任选的其它添加剂。 此外，本发明涉及使用所述电镀浴在基板上沉积铬的方法。