行业组件数据 · 2026

磁铁段

Magnet segments are precision-engineered magnetic components used in drive magnet assemblies to generate controlled electromagnetic fields for motion control applications.

技术定义与适配语境
典型 磁铁段 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

Magnet segments are specialized permanent magnet components, typically manufactured from rare-earth materials like neodymium-iron-boron (NdFeB) or samarium-cobalt (SmCo), that are precisely shaped and arranged in drive magnet assemblies. These segments create specific magnetic field patterns essential for converting electrical energy into mechanical motion in motors, actuators, and other electromagnetic devices. Their geometric configuration, magnetization direction, and material properties are critical for achieving optimal torque, efficiency, and positional accuracy in industrial machinery.

组件规格

定义
Magnet segments are specialized permanent magnet components, typically manufactured from rare-earth materials like neodymium-iron-boron (NdFeB) or samarium-cobalt (SmCo), that are precisely shaped and arranged in drive magnet assemblies. These segments create specific magnetic field patterns essential for converting electrical energy into mechanical motion in motors, actuators, and other electromagnetic devices. Their geometric configuration, magnetization direction, and material properties are critical for achieving optimal torque, efficiency, and positional accuracy in industrial machinery.
工作原理
Magnet segments operate based on the principles of electromagnetism and permanent magnetism. When integrated into a drive magnet assembly, they establish a static magnetic field that interacts with alternating currents in nearby coils or windings. This interaction generates Lorentz forces that produce rotational or linear motion. The segments are arranged to create sinusoidal or trapezoidal magnetic flux distributions, which determine the motor's performance characteristics including torque ripple, speed control, and efficiency.
材料
Primary materials: Neodymium Iron Boron (NdFeB) grades N35-N52Samarium Cobalt (SmCo) grades 1:5 and 2:17or Ferrite (SrFe12O19/CaFe12O19). Coatings: Nickel (Ni)Zinc (Zn)Epoxyor Parylene for corrosion protection. Operating temperature range: -40°C to +200°C depending on grade. Maximum energy product (BHmax): 25-55 MGOe for NdFeB16-32 MGOe for SmCo.
Remanence
1.0-1.4 T
Tolerance
±0.05mm to ±0.2mm
Coercivity
10-30 kOe
Dimensions
Customized per application (typical: 10-100mm arc length, 5-50mm width, 2-20mm thickness)
Magnetization
Radial, parallel, or multi-pole
Surface Field
2000-5000 Gauss
标准
ISO 9001ISO/TS 16949IEC 60404-8-1ASTM A977/A977M

行业分类与别名

磁铁段 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Exposure to temperatures above maximum operating limit->Partial or complete demagnetization->Implement temperature monitoring systems, use higher temperature grade materials (SmCo), and design proper cooling mechanisms
Improper handling during assembly->Physical damage or chipping of magnet edges->Use specialized non-magnetic tools, implement proper handling procedures, and apply protective coatings
Inconsistent magnetization during manufacturing->Uneven torque output and increased vibration->Implement quality control checks using gauss meters, ensure proper magnetization fixture alignment, and conduct sample testing

工业生态与工程逻辑

0
Demagnetization at high temperatures
1
Corrosion in humid environments
2
Mechanical brittleness and chipping
3
Magnetic field interference with nearby equipment
4
Inconsistent magnetization affecting performance

合规与检测

tolerance
Geometric tolerances per ISO 2768-mK, magnetic properties within ±5% of specified values
test method
Gauss meter measurement for surface field, coordinate measuring machine (CMM) for dimensional verification, salt spray testing per ASTM B117 for corrosion resistance, thermal cycling tests per IEC 60068-2-14

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采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What are the main applications of magnet segments in industrial settings?

Magnet segments are primarily used in brushless DC motors, servo motors, linear actuators, and precision positioning systems across industries including robotics, automotive manufacturing, aerospace, and industrial automation.

How do magnet segments differ from complete magnet rings?

Magnet segments allow for more flexible design configurations, better heat dissipation, and easier assembly compared to single-piece magnet rings. They enable precise control of magnetic field distribution and can be arranged in various pole configurations.

What factors determine the choice between NdFeB and SmCo magnet segments?

NdFeB offers higher magnetic strength and is more cost-effective for temperatures below 150°C. SmCo provides better temperature stability (up to 350°C) and corrosion resistance but is more expensive. The choice depends on operating temperature, budget, and environmental conditions.

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URN:CNFX:ME:UNIT:MAGNET_SEGMENTS