Electrophoresis method of neodymium-iron-boron magnet
A technology of NdFeB magnets, applied in electrophoretic plating, electrolytic coating, metal material coating technology, etc., can solve the problems of low anti-corrosion performance, large porosity of phosphating film layer, corrosion of NdFeB magnets, etc. , to achieve the effect of improved corrosion resistance, small grain size and small porosity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Example Embodiment
[0027] Embodiment 1: An electrophoresis method for neodymium iron boron magnets, including the following steps: ① pretreatment step, ② phosphating step, ③ electrophoresis step, and ④ curing step. The phosphating step specifically includes the following steps:
[0028] ②-1 Put the pre-treated NdFeB magnet into a phosphating bath containing phosphating solution for phosphating treatment. The phosphating treatment time is 600 seconds. The phosphating solution is composed of zinc dihydrogen phosphate, zinc oxide, and molybdenum. It is composed of sodium, sodium nitrate, sodium nitrite, phosphoric acid, diammonium hydrogen citrate, nickel ammonium sulfate, copper sulfate and water. The mass volume concentration of zinc dihydrogen phosphate is 100 g / l, and the mass volume concentration of zinc oxide is 60 G / L, the mass volume concentration of sodium molybdate is 5 g / L, the mass volume concentration of sodium nitrate is 10 g / L, the mass volume concentration of sodium nitrite is 5 g
Example Embodiment
[0033] Embodiment 2: An electrophoresis method for neodymium iron boron magnets, including the following steps: ① pretreatment step, ② phosphating step, ③ electrophoresis step, and ④ curing step. The phosphating step specifically includes the following steps:
[0034] ②-1 Put the pre-treated neodymium iron boron magnet into the phosphating tank with phosphating solution for phosphating treatment. The phosphating treatment time is 900 seconds. The phosphating solution consists of zinc dihydrogen phosphate, zinc oxide, and molybdenum. It is composed of sodium, sodium nitrate, sodium nitrite, phosphoric acid, diammonium hydrogen citrate, nickel ammonium sulfate, copper sulfate and water. The mass volume concentration of zinc dihydrogen phosphate is 150 g / L, and the mass volume concentration of zinc oxide is 100 G / L, the mass volume concentration of sodium molybdate is 15 g / L, the mass volume concentration of sodium nitrate is 25 g / L, the mass volume concentration of sodium nitri
Example Embodiment
[0039] Embodiment 3: An electrophoresis method for neodymium iron boron magnets, including the following steps: ① pretreatment process, ② phosphating process, ③ electrophoresis process, and ④ curing process. The phosphating process specifically includes the following steps:
[0040] ②-1 Put the pre-treated NdFeB magnet into a phosphating bath containing phosphating solution for phosphating treatment. The phosphating treatment time is 600 seconds. The phosphating solution is composed of zinc dihydrogen phosphate, zinc oxide, and molybdenum. It is composed of sodium, sodium nitrate, sodium nitrite, phosphoric acid, diammonium hydrogen citrate, nickel ammonium sulfate, copper sulfate and water. The mass volume concentration of zinc dihydrogen phosphate is 100 g / l, and the mass volume concentration of zinc oxide is 60 G / L, the mass volume concentration of sodium molybdate is 5 g / L, the mass volume concentration of sodium nitrate is 10 g / L, the mass volume concentration of sodium
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap