GB/T 44656-2024 in English
VALIDSpecification of polymer-bonded anisotropic ferrite permanent magnetic compounds for injection molding
- Issued on:2024-09-29
- Implemented on:2025-04-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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| Standard No: | GB/T 44656-2024 |
| Document status: | VALID |
| Title in English: | Specification of polymer-bonded anisotropic ferrite permanent magnetic compounds for injection molding |
| Title in Chinese: | 注射成型各向异性铁氧体永磁复合颗粒技术条件 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2024-09-29 |
| Implemented on: | 2025-04-01 |
| ICS Classification: | 29.030-Magnetic materials |
| Chinese Classification: | K10-Electrotechnical material and universal parts in general |
| Professional Classification: | GB-National Standard |
| Related Keywords: | ferrite permanent magnetic compounds
anisotropic ferrite permanent magnet injection molding maximum magnetic energy product application magnetic properties remanence |
| Related Topics: | Anisotropy Analysis
anisotropy Ferrite particle technology anisotropy field water for injection |
《GB/T 44656-2024注射成型各向异性铁氧体永磁复合颗粒技术条件》由TC228（全国电工合金标准化技术委员会）归口，主管部门为中国电器工业协会。
Introduction
GB/T 44656—2024 Standard Overview
This standard specifies the technical requirements, test methods and quality assurance measures for injection molded anisotropic ferrite permanent magnet composite particles, and is applicable to the production and application of magnetic materials for injection molding.
Core content interpretation
| Technical indicators | Key requirements | Scope of application |
|---|---|---|
| Magnetic properties | Remanence (B), coercive force (HcB), and maximum magnetic energy product (BH) max must comply with the values specified in Table 1. | General requirements for all grades of materials |
| Mechanical properties | Tensile strength, flexural strength and other indicators vary according to the grade, see Table 2 for specific values. | Ensure the structural stability of the material after injection molding |
| Physical properties | Water content ≤ 0.20%, melt mass flow rate ≥ 40g/10min. | Key indicators affecting material processing performance and product quality |
Grade representation method and application case
FPA6-171Example:
- F: Anisotropic ferrite substrate
- PA6: Nylon 6 binder
- 171: Maximum magnetic energy product value (kJ/m³)
Standard implementation recommendations
To ensure that the material meets the requirements of GB/T 44656-2024, it is recommended that:
- Strictly control the raw material ratio and preparation process parameters.
- Establish a complete quality inspection system, focusing on monitoring magnetic and mechanical performance indicators.
- Choose the appropriate grade according to the actual application scenario and refer to the unit conversion relationship in Appendix B for performance matching.
Sample only — not a preview of GB/T 44656-2024
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