Preparation method and device for decreasing sintered NdFeB declination
A magnetic declination, NdFeB technology is applied in the field of preparation and device for reducing the magnetic declination angle of sintered NdFeB, which can solve the problems of damage to the performance of the magnet, inability to control the production, reduce the magnetic declination angle of the magnet, etc. , Improve material utilization, reduce the effect of magnetic declination
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0020] Example 1
[0021] The finished product specification is 20mm×4mm×9mm↓ (orientation direction), the production process of the grade N40 product.
[0022] Ingredients: proportion by weight according to the following ingredients, praseodymium neodymium alloy 30.2% by weight, gadolinium 2.0% by weight, boron 1.03% by weight, aluminum 0.64% by weight, zirconium 0.3% by weight, copper 0.02% by weight, the balance is iron and other impurities, In the praseodymium-neodymium alloy, praseodymium accounts for 25% by weight, neodymium accounts for 75% by weight, boron is added in the state of BFe alloy, the content of boron is 19%, and the content of iron is 81%; gadolinium is added in the state of GdFe alloy, and the content of gadolinium is 75%, The iron content is 25%.
[0023] Smelting: put the prepared raw materials into the vacuum induction furnace, vacuumize the induction furnace to 4.5~5Pa, heat and smelt until the raw materials in the furnace turn red, close the vacuum v...
Example Embodiment
[0041] Example 2
[0042] The finished product specification is Φ100mm×3mm↓ (orientation direction), the production process of the grade N38 product.
[0043] Ingredients: According to the following ingredients, proportion by weight, praseodymium neodymium alloy 31% by weight, gadolinium 2.5% by weight, boron 1.02% by weight, aluminum 0.64% by weight, zirconium 0.1% by weight, copper 0.02% by weight, the balance is iron and other impurities, In the praseodymium-neodymium alloy, praseodymium accounts for 25% by weight, neodymium accounts for 75% by weight, boron is added in the state of BFe alloy, the content of boron is 19%, and the content of iron is 81%; gadolinium is added in the state of GdFe alloy, and the content of gadolinium is 75%, The iron content is 25%.
[0044] Smelting: Put the prepared raw materials into the vacuum induction furnace, vacuumize the induction furnace to 4.0~4.5Pa, heat and smelt until the raw materials in the furnace turn red, close the vacuum va...
Example Embodiment
[0062] Example 3
[0063] The finished product specification is Φ21mm×3mm↓ (orientation direction), and the production process of the grade N45 product.
[0064]Batching: according to the weight of the following ingredients: 28% neodymium, 1.02% boron, 1.0% dysprosium, 1.5% holmium, 0.2% aluminum, 1.5% gadolinium, 0.4% niobium, 0.2% copper, 0.2% cobalt, 0.1% gallium , iron and other impurities are 65.88%, of which boron is added in BFe alloy state, boron content is 19%, iron content is 81%; holmium is added in HoFe purity 99.50% alloy state, holmium content is 80%, iron content is 20% ; Gadolinium is added in the state of GdFe alloy, the content of gadolinium is 75%, and the content of iron is 25%; the niobium is added in the state of NbFe alloy, in which the content of niobium is 65%, and the content of iron is 35%.
[0065] Smelting: Put the prepared raw materials into the vacuum induction furnace, vacuumize the induction furnace to 4.0~4.5Pa, heat and smelt until the raw m...
PUM
Property | Measurement | Unit |
---|---|---|
Cross-sectional area | aaaaa | aaaaa |
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