This Standard specifies the code of single-layer coating and multi-layer composite coating, substrate requirements, pre-plating preparation and process flow, performance requirements, test methods, inspection rules and markings, packaging, transportation, storage and quality certificates for the surface of sintered neodymium iron boron permanent magnet materials. This Standard applies to protective and decorative coatings on the surface of sintered neodymium iron boron permanent magnet materials, including coatings (hereinafter referred to as coating products) using electroplating, electroless plating and physical vapor deposition technology.
Basic Data
Standard ID
GB/T 34491-2017 (GB/T34491-2017)
Description (Translated English)
Coatings for sintered neodymium iron boron permanent magnets
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
H65
Classification of International Standard
77.120.99
Word Count Estimation
14,116
Date of Issue
2017-10-14
Date of Implementation
2018-05-01
Regulation (derived from)
National Standard Announcement 2017 No. 26
Issuing agency(ies)
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
