行业组件数据 · 2026

电工钢叠片

Electrical steel laminations are thin, insulated sheets stacked to form the core of electric motor stators, reducing eddy current losses and improving efficiency.

技术定义与适配语境
典型 电工钢叠片 会按材料、尺寸公差、适配关系和失效风险在 电气设备制造 中评估。

Electrical steel laminations are precision-stamped or laser-cut thin sheets made from silicon steel alloys, typically 0.2-0.7 mm thick, with an insulating coating. They are stacked and bonded to form the stator core in electric motors, transformers, and generators. The laminations minimize eddy current losses by interrupting electrical paths, while their high magnetic permeability enhances flux conduction. Key properties include low core loss, high saturation induction, and good mechanical strength for winding support.

组件规格

定义
Electrical steel laminations are precision-stamped or laser-cut thin sheets made from silicon steel alloys, typically 0.2-0.7 mm thick, with an insulating coating. They are stacked and bonded to form the stator core in electric motors, transformers, and generators. The laminations minimize eddy current losses by interrupting electrical paths, while their high magnetic permeability enhances flux conduction. Key properties include low core loss, high saturation induction, and good mechanical strength for winding support.
工作原理
Electrical steel laminations work by reducing eddy currents through insulation between layers, directing magnetic flux efficiently in the stator core. When alternating current flows through stator windings, it creates a rotating magnetic field. The laminated core provides a low-reluctance path for this flux, minimizing energy losses as heat. The insulation (e.g., oxide or phosphate coating) prevents circulating currents between sheets, while the silicon steel alloy reduces hysteresis losses.
材料
Cold-rolled non-oriented silicon steel (e.g.M250-35AM400-50A) or grain-oriented silicon steel for specific applications. Silicon content: 1-3.5%. Insulation: C-5 organic coatingC-6 inorganic coatingor hybrid. Thickness: 0.2 mm0.35 mm0.5 mmor 0.65 mm standard grades.
Core Loss
2.5-4.5 W/kg at 1.5T, 50Hz
Permeability
1500-5000 μ
Stacking Factor
0.95-0.97
Coating Resistance
>10 Ω·cm²
Flatness Tolerance
<0.2 mm/m
Saturation Induction
1.8-2.0 T
标准
ISO 683-17IEC 60404-8-7ASTM A876DIN EN 10106

行业分类与别名

电工钢叠片 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

Inadequate insulation coating or damage during handling->Increased eddy currents, overheating, reduced motor efficiency->Use certified materials with proper coating, implement quality checks (e.g., resistance testing), handle with protective packaging
Improper stacking or misalignment during assembly->Increased magnetic reluctance, vibration, noise, and mechanical stress->Precision stacking fixtures, laser alignment tools, and torque-controlled fastening
Material impurities or incorrect silicon content->High hysteresis losses, reduced permeability, overheating->Source from certified suppliers, conduct material certification (e.g., spectrography), adhere to ISO 683-17 standards

工业生态与工程逻辑

0
Core loss exceeding specs due to poor material grade
1
Insulation breakdown causing interlamination shorts
2
Burrs or deformation affecting stacking and air gaps
3
Corrosion in humid environments degrading performance

合规与检测

tolerance
±0.05 mm thickness, ±0.1 mm dimensional for stamping; flatness within 0.2 mm/m per ISO 683-17
test method
Epstein frame test for core loss and permeability per IEC 60404-2; coating resistance per ASTM A976; dimensional checks with CMM or laser scanning

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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

Why are electrical steel sheets laminated instead of solid?

Laminations reduce eddy current losses by insulating layers, preventing circulating currents that cause heating and efficiency drops in AC applications.

What is the difference between non-oriented and grain-oriented electrical steel?

Non-oriented steel has uniform magnetic properties in all directions, used for rotating machines like motors. Grain-oriented steel has enhanced magnetic properties in one direction, ideal for transformers.

How are laminations bonded in a stator stack?

Methods include welding, interlocking tabs, adhesive bonding, or stacking under pressure with end plates, ensuring mechanical integrity and minimal air gaps.

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URN:CNFX:ME:UNIT:ELECTRICAL_STEEL_LAMINATION