行业组件数据 · 2026

工作辊

Work rolls are precision cylindrical components in heavy-duty rolling mills that directly contact and deform metal during rolling operations.

技术定义与适配语境
典型 工作辊 会按材料、尺寸公差、适配关系和失效风险在 基础金属制造 中评估。

Work rolls are the primary rotating cylindrical components in a rolling mill stand that apply compressive forces to reduce the thickness, shape, or surface finish of metal stock. They operate under extreme mechanical, thermal, and wear conditions, requiring precise engineering for dimensional accuracy, surface quality, and durability in continuous industrial production.

组件规格

定义
Work rolls are the primary rotating cylindrical components in a rolling mill stand that apply compressive forces to reduce the thickness, shape, or surface finish of metal stock. They operate under extreme mechanical, thermal, and wear conditions, requiring precise engineering for dimensional accuracy, surface quality, and durability in continuous industrial production.
工作原理
Work rolls rotate in opposite directions at controlled speeds, drawing metal stock through the roll gap (nip). The compressive force between the rolls plastically deforms the metal, reducing its cross-sectional area while increasing length. Backup rolls often support work rolls to prevent deflection under high loads. The surface texture, hardness, and temperature of work rolls directly transfer to the finished product's surface characteristics.
材料
Forged alloy steels (e.g.86CrMoV770Cr3NiMo)high-chromium irontungsten carbideor ceramic composites. Surface hardness typically 55-85 HRC. Heat treatment includes quenchingtemperingand surface hardening processes like induction or flame hardening.
Diameter
300-1500 mm
Hardness
55-85 HRC
Maximum Load
Up to 10000 kN
Balance Grade
G2.5 or better
Barrel Length
800-5500 mm
Runout Tolerance
≤ 0.01 mm
Surface Roughness
Ra 0.1-1.6 μm
Temperature Resistance
Up to 600°C
标准
ISO 9001ISO 14001DIN 8601DIN 8602ASTM A295

行业分类与别名

工作辊 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

Insufficient cooling during operation->Thermal stress cracks on roll surface->Implement controlled cooling systems, monitor roll temperature with infrared sensors, use heat-resistant materials
Improper bearing maintenance->Roll vibration and surface defects->Regular bearing inspection, proper lubrication schedules, vibration monitoring systems
Hard inclusions in metal stock->Surface indentation and roll damage->Implement metal quality control, install entry detectors for hard particles, use tougher roll materials

工业生态与工程逻辑

0
Thermal cracking from uneven heating
1
Surface spalling due to fatigue
2
Bearing failure from improper lubrication
3
Vibration-induced chatter marks
4
Chemical corrosion from rolling fluids

合规与检测

tolerance
Diameter tolerance: ±0.05 mm, Runout: ≤0.01 mm, Surface finish: Ra 0.1-0.4 μm for cold rolling, Ra 0.8-1.6 μm for hot rolling
test method
Ultrasonic testing for internal defects, hardness testing (Rockwell/Shore), surface roughness measurement, dimensional verification with CMM, dynamic balancing test

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 difference between work rolls and backup rolls?

Work rolls directly contact and deform the metal, while backup rolls support work rolls to prevent bending under high rolling forces. Backup rolls are typically larger and harder to provide structural support.

How often should work rolls be replaced or reground?

Depending on material and operating conditions, work rolls typically require regrinding every 2-4 weeks of continuous operation. Complete replacement occurs after multiple regrinding cycles when minimum diameter limits are reached.

What causes work roll surface damage?

Common causes include thermal fatigue from rapid heating/cooling cycles, mechanical wear from abrasive materials, chemical corrosion from coolants, and impact damage from hard inclusions in metal stock.

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CNFX Industrial Component Index · 基础金属制造

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。

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URN:CNFX:ME:UNIT:WORK_ROLLS