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公开(公告)号：US20240358022A1
公开(公告)日：2024-10-31
申请号：US18685836
申请日：2022-04-14
发明人： Xiaofa Lin , Xiaoshan Lin , Xiaolong Liu , Xiaowei Lin , Dongliang Peng , Yining Zhang
摘要： A sterilizing and environment-friendly composite plating layer, a preparation method therefor, and a sterilizing and environment-friendly product. The sterilizing and environment-friendly composite plating layer comprises: a semi-bright nickel layer, a high sulfur nickel layer, and an environment-friendly white chromium composite sterilizing layer; the semi-bright nickel layer is disposed on a substrate that has a sterilizing requirement; the high sulfur nickel layer is disposed on a surface of the side of the semi-bright nickel layer away from the substrate; the environment-friendly white chromium composite sterilizing layer is disposed on a surface of the side of the high sulfur nickel layer away from the substrate; the environment-friendly white chromium composite sterilizing layer has a nano-needle structure and is formed by a sterilizing ammonium salt-containing composite raw material; and the concentration of the sterilizing ammonium salt in the composite raw material is 50 g/L to 100 g/L.
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公开(公告)号：US20240271308A1
公开(公告)日：2024-08-15
申请号：US18568394
申请日：2022-06-07
发明人： Berkem ÖZKAYA , Michael JONAT , Philipp WACHTER , Philip HARTMANN
摘要： The present invention relates to a method for adjusting the brightness L* of an electroplated chromium layer, in particular of a dark electroplated chromium layer. The method includes an aqueous trivalent chromium electroplating bath comprising colloidal particles and/or agglomerates thereof and a step of fully or partially removing same with optionally adding colloidal particles.
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公开(公告)号：US12006586B2
公开(公告)日：2024-06-11
申请号：US17996632
申请日：2021-04-21
申请人： Savroc Ltd
发明人： Jussi Räisä , Arto Yli-Pentti
摘要： An object comprising a chromium-based coating on a substrate is disclosed, wherein the chromium is electroplated from an aqueous electroplating bath comprising trivalent chromium cations, wherein the chromium-based coating comprises 87-98 weight-% of chromium, 0.3-5 weight-% of carbon, and 0.1-11 weight-% of nickel and/or iron, and wherein the chromium-based coating has a Vickers microhardness value of 1000-2000 HV, and wherein the chromium-based coating does not contain chromium carbide. Further is disclosed a method for its production, and an aqueous electroplating bath.
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公开(公告)号：US11905613B2
公开(公告)日：2024-02-20
申请号：US16808948
申请日：2020-03-04
申请人： COVENTYA S.P.A.
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.
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公开(公告)号：US11788199B2
公开(公告)日：2023-10-17
申请号：US17433141
申请日：2020-02-25
摘要： A method for electrolytically depositing a chromium oxide layer onto i) blackplate or onto ii) blackplate coated with a chromium electrodeposited coating produced based on chromium(III) technology electroplating, and to the coated product obtained thereby.
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6.发明公开公开(公告)号：US20230243057A1
公开(公告)日：2023-08-03
申请号：US18002716
申请日：2021-07-15
CPC分类号： C25D3/06 , C25D7/0614 , C25D17/10 , C25D21/12 , C25D3/10
摘要： A method for the electrodeposition of a functional or decorative chromium layer onto a metallic substrate in an electrodeposition process from a halide-ion free and boric acid free aqueous electrolyte solution and to the coated product obtained thereby.
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7.发明申请公开(公告)号：US20220389603A1
公开(公告)日：2022-12-08
申请号：US17888160
申请日：2022-08-15
发明人： Robert RÜTHER , Olaf KURTZ , Joko SETYADI-LIE , Tse-Cheen FOONG
IPC分类号： C25D3/06
摘要： The present invention relates to an aqueous passivation solution having a pH in the range from 5.4 to 7.2, the solution including trivalent chromium ions, and formate anions and/or oxalate anions as complexing agents for said trivalent chromium ions, in which the trivalent chromium ions with respect to all formate anions together with all oxalate anions form a molar ratio in the range from 1:15 to 1:400.
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公开(公告)号：US20220379655A1
公开(公告)日：2022-12-01
申请号：US17752090
申请日：2022-05-24
发明人： Michael LaVallee , Alan Fanta , Dave Baumgart
IPC分类号： B44F1/08 , C23C14/02 , C23C16/02 , C23C16/50 , C23C14/20 , C23C16/06 , C23C14/58 , C23C16/56 , C23C28/02 , C25D5/56 , C25D3/06 , B44F1/04
摘要： A decorative component includes a plurality of metal finish layers deposited over a substrate and a plurality of sub-layers. The outermost metal finish layer is selectively deposited or removed to define one or more recesses to create different appearances of the component. The outer metal layer may undergo laser ablation to remove at least a portion of the outer layer while still exposing the outer layer in the area of removed material. The recess may extend fully through the outer layer to expose the underlying metal finish layer, and/or the recess may have a sloped bottom surface to define a gradient appearance. The outer layer may be applied over a mask that is applied to the underlying layer, such that the outer layer is selectively applied. The outer layer may be removed to expose the underlying finish layer without exposing a nickel sublayer and without requiring a top coat.
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公开(公告)号：US20220213606A1
公开(公告)日：2022-07-07
申请号：US17438149
申请日：2020-03-03
申请人： JCU CORPORATION
发明人： Kana SHIBATA
摘要： A microporous plating solution characterized by containing nonconductive particles and polyaluminum chloride allows for easy preparation of positively charged nonconductive particles and is highly stable. Then, a method for performing microporous plating on an object to be plated, characterized by plating the object to be plated in the microporous plating solution results in a favorable number of micropores in the plating.
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公开(公告)号：US20210355594A1
公开(公告)日：2021-11-18
申请号：US17358464
申请日：2021-06-25
摘要： A method for post-treatment of a chromium finish surface to improve corrosion resistance comprising a) providing a substrate having a chromium finish surface, and at least one intermediate layer between the chromium finish surface and the substrate, selected from the group consisting of nickel, nickel alloys, copper and copper alloys, wherein the chromium finish surface is a surface of a trivalent chromium plated layer, obtained by electroplating the substrate, having the at least one intermediate layer, in a plating bath, the plating bath comprising chromium (III) ions; b) contacting the chromium finish surface with an aqueous solution, comprising a permanganate, at least one compound which is selected from a phosphorus-oxygen compound, a hydroxide, a nitrate, a borate, boric acid, a silicate, or a mixture of two or more of these compounds; c) forming a transparent corrosion protection layer onto the chromium finish surface during step b.
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