行业组件数据 · 2026

孔衬

Bore lining is a refractory sleeve or tip component that protects machine openings from high temperatures, abrasion, and chemical corrosion in industrial processes.

技术定义与适配语境
典型 孔衬 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。

A bore lining is a specialized refractory component designed as a sleeve or tip that lines the internal diameter of machine openings, nozzles, or channels. It serves as a protective barrier in high-temperature industrial applications, preventing thermal degradation, mechanical wear, and chemical attack on the underlying machine structure. Typically used in metal processing, glass manufacturing, and chemical reactors, it maintains dimensional stability and process efficiency under extreme conditions.

组件规格

定义
A bore lining is a specialized refractory component designed as a sleeve or tip that lines the internal diameter of machine openings, nozzles, or channels. It serves as a protective barrier in high-temperature industrial applications, preventing thermal degradation, mechanical wear, and chemical attack on the underlying machine structure. Typically used in metal processing, glass manufacturing, and chemical reactors, it maintains dimensional stability and process efficiency under extreme conditions.
工作原理
The bore lining operates by providing a sacrificial or durable layer between the process medium and the machine body. It absorbs thermal stress, resists abrasive wear from flowing materials, and prevents chemical reactions that could damage the equipment. Its refractory properties allow it to maintain integrity at temperatures exceeding 1000°C, while its precise geometry ensures consistent flow or alignment in the machine operation.
材料
High-alumina ceramics (Al2O3 content 85-99%)silicon carbide (SiC)zirconia (ZrO2)fused silicaor advanced refractory composites. May include bonding agents like phosphate or clay binders. Operating temperature range: 1000-1800°C depending on material grade.
Length
50-1000 mm
Density
2.5-4.0 g/cm³
Inner Diameter
10-500 mm
Wall Thickness
5-50 mm
Pressure Rating
Up to 10 bar
Thermal Conductivity
2-30 W/m·K
Max Service Temperature
1600°C
标准
ISO 5019DIN 1089ASTM C24

行业分类与别名

孔衬 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

Rapid temperature changes exceeding material thermal shock resistance->Cracking or spalling of lining->Use graded thermal expansion materials, implement controlled heating/cooling cycles, apply protective coatings
High-velocity abrasive particle flow->Erosion and thinning of lining wall->Select harder materials like silicon carbide, design smoother internal surfaces, implement flow conditioning upstream
Chemical reaction with process materials->Corrosion and loss of structural integrity->Choose chemically inert materials like high-alumina ceramics, monitor process chemistry, implement protective purge gases

工业生态与工程逻辑

0
Thermal shock cracking
1
Erosion from abrasive flows
2
Chemical corrosion from molten materials
3
Installation misalignment causing leaks
4
Material degradation over time reducing protection

合规与检测

tolerance
±0.5% on inner diameter, ±1% on length for precision applications; general applications ±2%
test method
ISO 5019 for dimensions, ASTM C20 for apparent porosity, ASTM C133 for crushing strength, thermal shock testing per ASTM C1171

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 industries commonly use bore linings?

Primary industries include steel and metal foundries (for ladles and tundishes), glass manufacturing (forehearths and feeders), chemical processing (reactor nozzles), and cement production (kiln inlets).

How often should bore linings be replaced?

Replacement intervals vary from weeks to years based on material, operating temperature, and abrasion exposure. High-wear applications may require monthly inspection, while stable processes can last 1-3 years.

Can bore linings be custom-shaped?

Yes, most are custom-manufactured to match specific machine geometries using precision molding, extrusion, or machining of refractory materials before firing.

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CNFX Industrial Component Index · 机械和设备制造

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初步技术归类
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URN:CNFX:ME:UNIT:BORE_LINING