公开(公告)号：JP2005240068A

公开(公告)日：2005-09-08

申请号：JP2004048159

申请日：2004-02-24

Applicant: Nippon Hyomen Kagaku Kk ,  日本表面化学株式会社

Inventor： WATANABE TAKAHIRO ,  KATORI MITSUOMI ,  HORIE HIDEKAZU

IPC: C23C22/30 ,  C23C22/40 ,  C23C28/00

CPC classification number: C23C28/3225 ,  C23C22/40 ,  C23C22/53 ,  C23C28/345 ,  C23C2222/10

Abstract: PROBLEM TO BE SOLVED: To provide a treatment liquid which stably forms a protective coating with uniform and adequate appearance and corrosion resistance on a zinc member, a zinc alloy member, a galvanized product or a zinc-alloy-plated product, without using hazardous hexavalent chromium, and to provide a method therefor. SOLUTION: The treatment liquid for forming the hexavalent-chromium-free coating includes trivalent chromium, two or more anions selected from particular anions, three or more metallic ions selected from particular metallic ions, and one or more complexing agents selected from particular complexing agents. The method for forming the hexavalent-chromium-free coating includes contacting a substrate with the treatment liquid once or several times. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种在锌构件，锌合金构件，镀锌制品或镀锌合金镀层产品上稳定地形成具有均匀且充分的外观和耐腐蚀性的保护涂层的处理液，没有 使用有害的六价铬，并提供其方法。 解决方案：用于形成六价铬无涂层的处理液包括三价铬，选自特定阴离子的两种或更多种阴离子，选自特定金属离子的三种或更多种金属离子，以及一种或多种选自特定的金属离子的络合剂 络合剂。 形成六价铬无涂层的方法包括使基底与处理液接触一次或数次。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP3506411B2

公开(公告)日：2004-03-15

申请号：JP36964597

申请日：1997-12-29

Applicant: 日本表面化学株式会社

Inventor： 正明 山室 ,  秀郎 諏佐

IPC: C25D3/22 ,  C25D21/14

公开(公告)号：JP2003073899A

公开(公告)日：2003-03-12

申请号：JP2001259345

申请日：2001-08-29

Applicant: Nippon Hyomen Kagaku Kk ,  日本表面化学株式会社

Inventor： SEKIGUCHI OSAMU ,  USUI SHIGETAKA

IPC: C25D21/14

Abstract: PROBLEM TO BE SOLVED: To provide a method for dissolving zinc ions into a plating liquid, in order to keep zinc concentration in the plating liquid constant in an alkaline electrogalvanizing method, when galvanizing an article to be plated.
SOLUTION: This method for supplying the zinc ions to the plating liquid comprises contacting zinc of one or more kinds from the group of metallic zinc or zinc alloys, for dissolution, which is deposited by one or more nobler metallic ions than metallic zinc, with substitution, plating, or the like, with one or more articles for contact or circuit formation, made from the group consisting of one or more kinds of a copper group element, a titanium group element, a carbon group element, a chromium group element, an iron group element, and a platinum group metal, or alloys including them, which are plated with one or more metals nobler or having a lower hydrogen overpotential than zinc, in the zinc-based plating liquid containing an alkali hydroxide of 20-300 g/L, to accelerate a dissolution rate of zinc for the dissolution.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：为了提供一种将锌离子溶解到电镀液中的方法，为了使镀锌液中的锌浓度在碱性电镀锌方法中保持恒定，当镀锌时，要镀覆。 解决方案：将锌离子供给到电镀液中的方法包括使来自金属锌或锌合金的一种或多种锌的锌的溶解，其通过一种或多种贵金属离子沉积而不是金属锌与替代物接触 ，电镀等与一种或多种用于接触或电路形成的制品由一种或多种铜族元素，钛族元素，碳族元素，铬族元素，铬族元素， 铁族元素和铂族金属或包含它们的合金，在含有20-300g / m 2的碱金属氢氧化物的锌基电镀液中镀上一种或多种贵金属或具有比锌低的氢过剩金属， L，以加速溶解锌的溶解速率。