Braze coating material with nickel core and coating and preparation method and braze coating method thereof

US12420361B2 · kind B2 · utility

Assignee

• ZHENGZHOU RESEARCH INSTITUTE OF MECHANICAL ENGINEERING CO., LTD. · CN

Inventors

• Weimin Long · Zhengzhou, CN
• Guanxing Zhang · Baofeng County, CN
• Yong Li · Shanghai, CN
• Yongtao Jiu · Baofeng County, CN
• Yinyin Pei · Baofeng County, CN
• Junlan Huang · Baofeng County, CN
• Hongwei Dong · Zhengzhou, CN
• Hangyan Xue · Baofeng County, CN

Key dates

• Filing date: Feb 14, 2023
• Grant date: Sep 23, 2025
• Expiry date: Jun 6, 2044

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23K35/404
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A braze coating material with a nickel core and a coating, a preparation method thereof, and a braze coating method are provided. The braze coating material with a nickel core and a coating requires no binder and has strong adhesion ability, and includes the nickel core, a coating layer, a hardened layer, and a protective layer sequentially from inside to outside. The nickel core is metallic nickel having a surface subjected to a roughening treatment. The coating layer is a first brazing flux layer including hard particles, a first brazing flux, and a brazing filler metal powder. The hardened layer contains a second brazing flux and is covered with the protective layer mainly composed of a silicate.