公开(公告)号：US20170029971A1

公开(公告)日：2017-02-02

申请号：US15290058

申请日：2016-10-11

Applicant: Atotech Deutschland GmbH

Inventor： Lukas BEDRNIK ,  Frantisek HAAS ,  Nadine LANG ,  Roland VOGEL

IPC: C25D3/56

CPC classification number: C25D3/565 ,  B32B15/013 ,  C25D5/48 ,  Y10T428/12792

Abstract: A process for depositing a zinc-iron alloy layer material having a body centred cubic crystal structure of the Γ-phase, a (330) texture and an iron content of 12 to 20 wt.-% including the steps (i) providing a metallic substrate, (ii) contacting the substrate with an alkaline aqueous zinc-iron alloy plating bath containing 4 to 6 g/l zinc ions, 1 to 3 g/l iron ions, 25 to 35 g/l hydroxyl ions, 0.5 to 2.5 g/l of a quaternary ammonium polymer and at least one complexing agent selected from the group consisting of hydroxyl carboxylic acids and salts thereof and simultaneously applying a current to the substrate. The zinc alloy layer material provides a high corrosion protection to metallic substrates, has a high hardness and a bright appearance.

Abstract translation: 一种用于沉积具有Γ相，（330）织构和铁含量为12至20重量％的体心立方晶体结构的锌 - 铁合金层材料的方法，包括步骤（i）提供金属 基板，（ii）使基板与含有4〜6g / l的锌离子，1〜3g / l的铁离子，25〜35g / l的羟基离子，0.5〜2.5g的碱土金属锌 - 铁合金电镀液 / l的季铵聚合物和至少一种选自羟基羧酸及其盐的络合剂，同时向基材施加电流。 锌合金层材料为金属基材提供高度的防腐蚀性，硬度高，外观美观。