行业组件数据 · 2026

磁极片

Magnetic pole pieces are precision-engineered ferromagnetic components that shape and concentrate magnetic fields in bending magnets for particle accelerators and beam transport systems.

技术定义与适配语境
典型 磁极片 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。

Magnetic pole pieces are critical components in bending magnets used in particle accelerators, synchrotrons, and beamlines. These precisely machined ferromagnetic elements define the magnetic field geometry, ensuring uniform field distribution and precise beam deflection. They work in conjunction with electromagnet coils to create controlled magnetic fields that steer charged particles along predetermined paths. The pole pieces' geometry (typically hyperbolic or cylindrical surfaces) determines the field quality, while their material properties affect saturation characteristics and hysteresis losses.

组件规格

定义
Magnetic pole pieces are critical components in bending magnets used in particle accelerators, synchrotrons, and beamlines. These precisely machined ferromagnetic elements define the magnetic field geometry, ensuring uniform field distribution and precise beam deflection. They work in conjunction with electromagnet coils to create controlled magnetic fields that steer charged particles along predetermined paths. The pole pieces' geometry (typically hyperbolic or cylindrical surfaces) determines the field quality, while their material properties affect saturation characteristics and hysteresis losses.
工作原理
Magnetic pole pieces operate on electromagnetic principles. When current flows through surrounding coils, it generates a magnetic field that is concentrated and shaped by the high-permeability pole pieces. The pole faces create uniform magnetic flux density across the gap, with the field strength proportional to the magnetomotive force and inversely proportional to the gap distance. The precise contouring of pole surfaces ensures field homogeneity, minimizing beam aberrations and enabling accurate particle trajectory control.
材料
High-permeability electrical steel (M19M36 grades)Vanadium Permendur (49% Co49% Fe2% V)Silicon steel laminations (0.35-0.65mm thickness)Pure iron (Armco grade)Nickel-iron alloys (Mu-metal for shielding applications)
Coercivity
<10 A/m
Surface Flatness
<10 μm over 100mm
Surface Roughness
Ra < 0.8 μm
Residual Induction
<0.1 Tesla
Dimensional Tolerance
±0.05 mm
Magnetic Permeability
>5000 μr
Operating Temperature
-196°C to +150°C
Saturation Flux Density
1.8-2.3 Tesla
标准
ISO 19833ISO 19834DIN 17405IEC 60404-8-6

行业分类与别名

磁极片 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

Material impurities or improper heat treatment->Reduced permeability leading to field inhomogeneity->Implement material certification (MTR), perform permeability testing, use vacuum annealing processes
Inadequate surface finish or geometric errors->Field distortions causing beam instabilities->Apply precision grinding/polishing, implement CMM verification, use optical profilometry for surface analysis
Improper assembly or alignment->Asymmetric field distribution and beam steering errors->Use laser alignment systems, implement shimming procedures, perform magnetic field mapping after assembly

工业生态与工程逻辑

0
Magnetic saturation at high fields
1
Mechanical deformation under magnetic forces
2
Corrosion in vacuum environments
3
Thermal expansion mismatches
4
Residual magnetism affecting field quality

合规与检测

tolerance
Geometric tolerances per ISO 2768-mK, magnetic properties within ±2% of specification, surface finish Ra < 0.8 μm
test method
Hall probe mapping for field homogeneity, permeameter testing for B-H curves, CMM for dimensional verification, eddy current testing for material defects

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

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 is the primary function of magnetic pole pieces in bending magnets?

Magnetic pole pieces shape and concentrate magnetic fields to create uniform flux density across the magnet gap, enabling precise deflection of charged particle beams with minimal aberrations.

Why are high-permeability materials essential for pole pieces?

High-permeability materials minimize magnetic reluctance, allowing efficient field concentration with lower magnetomotive force, reducing power consumption and heat generation while improving field homogeneity.

How do pole piece geometry affect beam quality?

Precisely contoured pole surfaces (hyperbolic, cylindrical) create optimized field distributions that minimize sextupole and higher-order multipole components, reducing beam emittance growth and trajectory errors.

我可以直接联系工厂吗?

CNFX 是开放目录,不是交易平台或采购代理。工厂资料和表单用于帮助你准备直接沟通。

CNFX Industrial Component Index · 机械和设备制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类
本页用于结构化准备研究、RFQ 和供应商评估,不替代买方自己的供应商资质审查、标准核验和技术批准。

请求制造能力信息: 磁极片

说明目标数量、应用场景、交期和关键技术要求,用于准备 RFQ 或供应商评估。

谢谢,信息已发送。
谢谢,信息已收到。

需要制造 磁极片?

对比具备该组件加工或装配能力的制造商资料。

创建制造商档案 联系我们
上一个组件
磁性线圈/永磁体
下一个组件
磁芯
URN:CNFX:ME:UNIT:MAGNETIC_POLE_PIECES