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1. 发明授权

US11643732B2 Corrosion-resistant trivalent-chromium chemical conversion coating and solution for trivalent-chromium chemical treatment 有权
公开(公告)号：US11643732B2
公开(公告)日：2023-05-09
申请号：US15497776
申请日：2017-04-26
申请人： DIPSOL CHEMICALS CO., LTD
发明人： Manabu Inoue , Kimitaka Watanabe , Go Nagata , Motoi Nakatani , Keita Ishizu , Toshiki Inomata
IPC分类号： C23C22/30 , C23C22/77 , C23C22/53 , C23C22/83 , C23C22/46 , C23C22/40 , C23C22/47 , C23C28/00 , C09D5/08 , C23C22/27 , C23C22/33
CPC分类号： C23C22/77 , C09D5/08 , C23C22/27 , C23C22/30 , C23C22/33 , C23C22/40 , C23C22/46 , C23C22/47 , C23C22/53 , C23C22/83 , C23C28/3225 , C23C28/34 , C23C2222/10 , Y10T428/273
摘要： A trivalent-chromium chemical conversion coating from which substantially no hexavalent chromium is released. The trivalent-chromium chemical conversion coating is one formed on the surface of a zinc or zinc-alloy deposit. In a brine spray test, the chemical conversion coating has unsusceptibility to corrosion (time required for white-rust formation) of 96 hours or longer. The chemical conversion coating has a hexavalent-chromium concentration less than 0.01 μg/cm2 in terms of metal atom amount. The amount of hexavalent chromium released after 30-day standing in a thermo-hygrostatic chamber at a temperature of 80° C. and a humidity of 95% (amount of hexavalent chromium released when the coating is immersed in 100° C. water for 10 minutes) is smaller than 0.05 μg/cm2.

2. 发明申请

US20210317591A1 TIN ALLOY ELECTROPLATING BATH AND PLATING METHOD USING SAME 有权
公开(公告)号：US20210317591A1
公开(公告)日：2021-10-14
申请号：US17264405
申请日：2019-07-12
申请人： DIPSOL CHEMICALS CO., LTD.
发明人： Yutaka MORII , Go NAGATA , Satoshi YUASA
IPC分类号： C25D3/60 , C25D5/18
摘要： A tin alloy electroplating bath, wherein the tin alloy electroplating bath includes (A) a soluble tin salt, (B) a soluble nickel salt and/or a soluble cobalt salt, (C) an oxycarboxylic acid or a salt thereof, (D) a nitrogen-containing heterocyclic unsaturated compound, and (E) a surfactant, and the pH of the tin alloy electroplating bath is 3 to 7.

3. 发明授权

US10538854B2 Copper-nickel alloy electroplating device 有权
公开(公告)号：US10538854B2
公开(公告)日：2020-01-21
申请号：US15519474
申请日：2015-06-25
申请人： Dipsol Chemicals Co., LTD.
发明人： Hitoshi Sakurai , Kazunori Ono , Akira Hashimoto , Satoshi Yuasa
IPC分类号： C25D21/14 , C25D3/58 , C22C9/06 , C22C19/00 , C22C19/03 , C25D3/56 , C25D17/00 , C25D21/12 , C25D21/06 , C25D21/10 , C25D5/08
摘要： Provided is a copper-nickel alloy electroplating apparatus which is capable of stably forming a copper-nickel plated coating on a workpiece with a uniform composition and which enables a plating bath to be used for a long period. The present invention provides a copper-nickel alloy electroplating apparatus (1), comprising: a cathode chamber (4) in which a workpiece (5) is to be placed; an anode chamber (6); an anode (7) placed in the anode chamber; an electrically conductive diaphragm (14) placed to separate the cathode chamber and the anode chamber from each other; a cathode chamber oxidation-reduction potential adjusting tank (8) for adjusting the oxidation-reduction potential of a plating liquid in the cathode chamber; an anode chamber oxidation-reduction potential adjusting tank (10) for adjusting the oxidation-reduction potential of a plating liquid in the anode chamber; and a power supply unit (36) that provides an electric current to flow between the workpiece and the anode.

4. 发明授权

US09328423B2 Liquid trivalent chromate for aluminium or aluminium alloy and method for forming corrosion-resistant film over surface of aluminium or aluminium alloy by using same 有权
标题翻译：用于铝或铝合金的液体三价铬酸盐以及通过使用铝或铝合金在铝或铝合金表面上形成耐腐蚀膜的方法
公开(公告)号：US09328423B2
公开(公告)日：2016-05-03
申请号：US11450163
申请日：2006-06-09
申请人： Akira Hashimoto
发明人： Akira Hashimoto
IPC分类号： C23C22/30 , C23C22/34 , C23C22/56
CPC分类号： C23C22/34 , C23C22/30 , C23C22/56 , C23C2222/10
摘要： The object of the present invention is to provide a method for forming a coating on the surface of an aluminum or aluminum alloy using a trivalent chromate solution which dose not contain any harmful hexavalent chromium, in which the coating has an excellent corrosion resistance and adhesion with paints.The present invention provides a hexavalent chromium free trivalent chromate solution for an aluminum or aluminum alloy, in which the concentration of a trivalent chromium is in the range of from 0.01 to 100 g/L, the concentration of a metal selected from the group consisting of zinc, cobalt, nickel and a combination thereof is in the range of from 0.01 to 100 g/L and the concentration of a fluorine is in the range of from 0.01 to 50 g/L.
摘要翻译：本发明的目的是提供一种使用不含任何有害六价铬的三价铬酸盐溶液在铝或铝合金表面上形成涂层的方法，其中该涂层具有优异的耐腐蚀性和与油漆本发明提供一种用于铝或铝合金的六价铬无铬三价铬酸盐溶液，其中三价铬的浓度在0.01至100g / L的范围内，金属的浓度选自锌，钴，镍及其组合在0.01至100g / L的范围内，氟的浓度在0.01至50g / L的范围内。

5. 发明授权

US08916039B2 Aluminum or aluminum alloy barrel electroplating method 有权
标题翻译：铝或铝合金圆筒电镀方法
公开(公告)号：US08916039B2
公开(公告)日：2014-12-23
申请号：US13502442
申请日：2010-10-19
申请人： Manabu Inoue , Tadahiro Ohnuma , Toshiki Inomata , Tsutomu Miyadera
发明人： Manabu Inoue , Tadahiro Ohnuma , Toshiki Inomata , Tsutomu Miyadera
IPC分类号： C25D5/00 , C25D17/20 , C25D3/56 , C25D5/04 , C25D3/66 , C25D7/00 , C25D3/44
CPC分类号： C25D17/20 , C25D3/44 , C25D3/56 , C25D3/665 , C25D5/04 , C25D7/001
摘要： To provide a barrel electroplating method which is less prone to bare spots and adhesion failure such as blisters and peeling, and which makes it possible to obtain uniform plated coatings free from burnt deposits and poor brightness, irrespective of the amount of workpieces.The present invention provides a method for performing barrel electroplating by use of an aluminum or aluminum alloy plating bath, the method comprising rotating, swinging, or vibrating an anode (6) placed inside a barrel (4) receiving workpieces, and simultaneously rotating, swinging, or vibrating the barrel, with a voltage being applied between the anode and a cathode provided on an inner wall surface of the barrel.
摘要翻译：提供一种不容易发生裸露斑点和粘附破坏（诸如水泡和剥离）的圆筒电镀方法，并且这使得可以获得均匀的镀覆涂层，不受烧焦沉积物和不良亮度的影响，而与工件数量无关。本发明提供了一种通过使用铝或铝合金电镀液进行圆筒形电镀的方法，所述方法包括旋转，摆动或振动放置在容纳工件的筒体（4）内的阳极（6），同时旋转，摆动或振动筒体，其中施加在阳极和设置在筒体的内壁表面上的阴极之间的电压。

6. 发明申请

US20130292255A1 ALUMINUM OR ALUMINUM ALLOY MOLTEN SALT ELECTROPLATING BATH HAVING GOOD THROWING POWER, ELECTROPLATING METHOD USING THE BATH, AND PRETREATMENT METHOD OF THE BATH 有权
标题翻译：铝或铝合金电镀有良好电力的电镀浴，使用浴室的电镀方法和浴室预处理方法
公开(公告)号：US20130292255A1
公开(公告)日：2013-11-07
申请号：US13977879
申请日：2012-01-04
申请人： Manabu Inoue , Akira Hashimoto , Tadahiro Onuma , Toshiki Inomata , Keisuke Nonomura , Naruaki Konno
发明人： Manabu Inoue , Akira Hashimoto , Tadahiro Onuma , Toshiki Inomata , Keisuke Nonomura , Naruaki Konno
IPC分类号： C25D3/66
CPC分类号： C25D3/665 , C25D3/44 , C25D3/56 , C25D5/18
摘要： The purpose of the present invention is to provide an electrical Al plating bath that poses little danger of exploding or igniting as a result of contacting air or water, and contains no benzene, toluene, xylene, naphthalene, or 1,3,5-trimethylbenzene, which have detrimental effects to humans. The present invention provides an electrical aluminum or aluminum alloy fused salt plating bath that is obtained by heat treatment of an electrical aluminum or aluminum alloy fused salt plating bath containing (A) a halogenated aluminum as the primary component and (B) at least one other type of halide after adding (C) one, two or more reducible compounds selected from the group consisting of hydrides of elements in Group 1 Periods 2 through 6 of the Periodic Table of Elements and/or hydrides of Group 13 Periods 2 through 6 of the Periodic Table of Elements and amine borane compounds.
摘要翻译：本发明的目的是提供一种电Al镀浴，其由于接触空气或水而具有爆炸或点燃的危险，并且不含苯，甲苯，二甲苯，萘或1,3,5-三甲基苯对人体有不利影响。本发明提供一种电铝或铝合金熔盐电镀浴，其通过热处理含有（A）卤化铝作为主要成分的电铝或铝合金熔盐电镀浴而获得，（B）至少一种其它添加后的卤化物类型（C）选自元素周期表第2至6周期元素的氢化物的一种或两种以上的可还原化合物和/或第13族的氢化物第元素周期表和胺硼烷化合物。

7. 发明申请

US20090050238A1 TREATMENT SOLUTION FOR FORMING OF BLACK TRIVALENT CHROMIUM CHEMICAL COATING ON ZINC OR ZINC ALLOY AND METHOD OF FORMING BLACK TRIVALENT CHROMIUM CHEMICAL COATING ON ZINC OR ZINC ALLOY 有权
标题翻译：在锌或锌合金上形成黑色三价铬化学镀层的处理方法及其在锌或锌合金上形成黑色三价铬化学涂层的方法
公开(公告)号：US20090050238A1
公开(公告)日：2009-02-26
申请号：US12192840
申请日：2008-08-15
申请人： Manabu Inoue , Satoshi Yuasa
发明人： Manabu Inoue , Satoshi Yuasa
IPC分类号： C23C22/30 , C22C18/00
CPC分类号： C23C22/47 , C23C22/83 , C23C2222/10
摘要： A treatment solution that is used to form a chemical coating of trivalent chromium free of hexavalent chromium having uniform black appearance and good corrosion resistance on the surface of zinc or zinc alloy and that attains prolongation of treatment bath lifetime; and a method of forming a black trivalent chromium chemical coating on the surface of zinc or zinc alloy. There is provided a treatment solution for forming of a black trivalent chromium chemical coating on zinc or zinc alloy, comprising trivalent chromium ions, a chelating agent capable of forming a water-soluble complex with trivalent chromium, zinc ions, a sulfur compound and phosphite ions.
摘要翻译：一种处理溶液，用于形成不含铬或锌合金表面均匀黑色外观和良好耐腐蚀性的不含六价铬的三价铬的化学涂层，可延长处理槽的使用寿命; 以及在锌或锌合金表面上形成黑色三价铬化学涂层的方法。提供了一种用于在锌或锌合金上形成黑色三价铬化学涂层的处理溶液，其包含三价铬离子，能够与三价铬形成水溶性络合物的螯合剂，锌离子，硫化合物和亚磷酸根离子。

8. 发明申请

US20080210341A1 TREATMENT SOLUTION FOR FORMING BLACK HEXAVALENT CHROMIUM-FREE CHEMICAL CONVERSION COATING FILM ON ZINC OR ZINC ALLOY 有权
标题翻译：用于在锌或锌合金上形成黑色无铬无铬化学转化膜的处理方法
公开(公告)号：US20080210341A1
公开(公告)日：2008-09-04
申请号：US12062856
申请日：2008-04-04
申请人： Tomitaka Yamamoto , Naoki Okabe
发明人： Tomitaka Yamamoto , Naoki Okabe
IPC分类号： C23C22/05 , C23C30/00 , B32B15/01
CPC分类号： C23C22/17 , C23C22/46 , C23C22/47 , C23C2222/10
摘要： Disclosed is a treatment solution for use in the formation of a black trivalent chromium chemical conversion coating film with uniformly stabilized black wash, luster and corrosive resistance irrespective of the type of the acidic, neutral or alkaline zinc plating bath employed or the presence or absence of nickel eutectoid. Also disclosed is a method of forming the black trivalent chromium chemical conversion coating film. The treatment solution comprises a trivalent chromium ion, a chelating agent capable of forming a water-soluble complex with the trivalent chromium, at least one metal ion selected from the group consisting of a cobalt ion, a nickel ion and an iron ion, and formic acid or a salt thereof as a buffer for hydrogen ion concentration. The treatment solution can be used for forming a black hexavalent chromium-free chemical conversion coating film on zinc or a zinc alloy.
摘要翻译：公开了用于形成均匀稳定的黑色洗涤，光泽和耐腐蚀性的黑色三价铬化学转化膜的处理溶液，而不管所用的酸性，中性或碱性镀锌浴的类型如何，或者是否存在镍共析。还公开了形成黑色三价铬化学转化涂膜的方法。处理溶液包含三价铬离子，能够与三价铬形成水溶性络合物的螯合剂，至少一种选自钴离子，镍离子和铁离子的金属离子，以及甲酸酸或其盐作为氢离子浓度的缓冲液。该处理液可用于在锌或锌合金上形成黑色六价铬无化学转化膜。

9. 发明申请

US20030121570A1 Processing solution for forming hexavalent chromium free and corrosion resistant conversion film on zinc or zinc alloy plating layers, hexavalent chromium free and corrosion resistant conversion film and method for forming the same 有权
标题翻译：用于在锌或锌合金镀层上形成六价铬无腐蚀转化膜的加工溶液，六价铬无腐蚀转化膜及其形成方法
公开(公告)号：US20030121570A1
公开(公告)日：2003-07-03
申请号：US10085705
申请日：2002-03-01
申请人： DIPSOL CHEMICALS CO., LTD.
发明人： Katsuhide Oshima , Shigemi Tanaka , Manabu Inoue , Tomitaka Yamamoto
IPC分类号： C23C022/46
CPC分类号： C23C28/3225 , C23C22/46 , C23C22/47 , C23C28/00 , C23C28/02 , C23C28/321 , C23C28/345 , C23C28/3455 , C23C2222/10 , Y10T428/12583 , Y10T428/12799 , Y10T428/31678
摘要： A processing solution for forming a hexavalent chromium free, corrosion resistant trivalent chromate conversion film on zinc or zinc alloy plating layers comprises a silicon compound; trivalent chromium and oxalic acid in a molar ratio ranging from 0.5 to 1.5, wherein the trivalent chromium is present in the form of a water-soluble complex with oxalic acid; and cobalt ions, which form a hardly soluble metal salt with oxalic acid and are stably present in the processing solution without causing any precipitation, wherein the solution reacts with zinc when bringing it into contact with the zinc or zinc alloy plating to form a hexavalent chromium free, corrosion resistant, trivalent chromate conversion film containing zinc, chromium, cobalt, oxalic acid and silicon on the plating. This solution can provide a corrosion resistant trivalent chromate conversion film excellent in the corrosion resistance after heating.
摘要翻译：用于在锌或锌合金镀层上形成六价铬无腐蚀的三价铬酸盐转化膜的处理溶液包括硅化合物; 三价铬和草酸的摩尔比范围为0.5至1.5，其中三价铬以与草酸的水溶性络合物的形式存在; 和钴离子，其与草酸形成难溶的金属盐，并且稳定地存在于处理溶液中而不引起任何沉淀，其中溶液与锌在与锌或锌合金镀层接触时与锌反应形成六价铬在镀层上含有锌，铬，钴，草酸和硅的三价铬酸盐转化膜。该溶液可以提供加热后的耐腐蚀性优异的耐腐蚀性的三价铬酸盐转化膜。

10. 发明授权

US5759381A Sn-Bi alloy-plating bath and method for forming plated Sn-Bi alloy film 失效
标题翻译： Sn-Bi合金镀液和形成镀Sn-Bi合金膜的方法
公开(公告)号：US5759381A
公开(公告)日：1998-06-02
申请号：US705663
申请日：1996-08-30
申请人： Hitoshi Sakurai , Ayumi Saito , Mayumi Date , Osamu Mita
发明人： Hitoshi Sakurai , Ayumi Saito , Mayumi Date , Osamu Mita
IPC分类号： B23K1/20 , C25D3/56 , C25D3/60 , H05K3/34 , C25D3/32
CPC分类号： C25D3/60 , H05K3/3473
摘要： An Sn--Bi alloy-plating bath comprises (i) Bi ions, (ii) Sn ions, (iii) ions of one metal selected from the group consisting of Cu, Co and Ag, and (iv) one member selected from the group consisting of carboxylic acids, lactone compounds, alkanesulfonic acids, alkanolsulfonic aicds, phenolsulfonic acids and salts thereof and is substantially free of lead ions. The bath permits the formation of an Sn--Bi alloy-plated film, does not form any plated film having impaired quality even at a temperature higher than about 100.degree. C. and does not form any whisker.
摘要翻译： Sn-Bi合金镀液包含（i）Bi离子，（ii）Sn离子，（iii）选自Cu，Co和Ag中的一种金属的离子，和（iv）选自Cu，由羧酸，内酯化合物，链烷磺酸，链烷醇磺酸，苯酚磺酸及其盐组成，并且基本上不含铅离子。该浴允许形成Sn-Bi合金镀膜，即使在高于约100℃的温度下也不会形成质量下降的任何镀膜，并且不形成任何晶须。

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