行业组件数据 · 2026

金属护套

High-temperature protective sheath for molten metal temperature sensor probes in industrial applications.

技术定义与适配语境
典型 金属护套 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 metal sheath is a protective tubular component designed to encase and shield the sensitive elements of a molten metal temperature sensor probe from extreme thermal, chemical, and mechanical stresses encountered in high-temperature industrial environments such as foundries, steel mills, and metal casting operations. It ensures sensor longevity and measurement accuracy by providing a durable barrier.

组件规格

定义
A metal sheath is a protective tubular component designed to encase and shield the sensitive elements of a molten metal temperature sensor probe from extreme thermal, chemical, and mechanical stresses encountered in high-temperature industrial environments such as foundries, steel mills, and metal casting operations. It ensures sensor longevity and measurement accuracy by providing a durable barrier.
工作原理
The metal sheath operates on the principle of thermal conduction and protection. It is inserted into molten metal, where it rapidly equilibrates to the metal's temperature. The sheath transfers heat to the internal sensor element (typically a thermocouple or RTD) while shielding it from direct contact with corrosive, abrasive, or electrically conductive molten materials. Its design minimizes thermal lag and maximizes response time.
材料
High-temperature alloys such as Inconel 600Incoloy 800H310 Stainless Steelor Molybdenum for ultra-high temperatures. Material selection depends on maximum service temperature (up to 1800°C)corrosion resistance (against molten ironaluminumcopperetc.)and thermal conductivity requirements.
Length
300mm to 1200mm
Outer Diameter
6mm to 25mm
Wall Thickness
1.5mm to 4mm
Connection Type
Threaded (e.g., NPT, BSP), Flanged, or Weld-in
Immersion Depth
Standard 300mm, custom available
Max Temperature
1200°C to 1800°C
Pressure Rating
Atmospheric to 5 bar
标准
ISO 13732-1DIN 43735ASTM E230

行业分类与别名

金属护套 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

Repeated thermal cycling->Crack formation in sheath wall->Use alloys with high thermal fatigue resistance; implement controlled heating/cooling cycles.
Chemical attack from molten metal impurities->Corrosion and wall thinning->Select corrosion-resistant materials; apply protective coatings if compatible.
Improper handling or insertion->Bending or puncture of sheath->Train operators; use guided insertion tools; design with robust wall thickness.

工业生态与工程逻辑

0
Thermal fatigue cracking
1
Chemical corrosion from slag/flux
2
Mechanical damage during insertion/removal
3
Inaccurate readings due to sheath contamination

合规与检测

tolerance
±0.5% of reading for temperature accuracy, dimensional tolerances per ISO 2768-m
test method
Calibration per ASTM E220, pressure testing per ISO 15848, material certification per EN 10204 3.1

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 a metal sheath in a molten metal temperature sensor?

To protect the internal sensor element from direct exposure to molten metal, preventing corrosion, abrasion, and electrical interference while ensuring accurate temperature measurement.

How do I select the right material for a metal sheath?

Choose based on the molten metal type (e.g., iron, aluminum), temperature range, chemical compatibility, and required service life. Common materials include Inconel for general use and Molybdenum for extreme temperatures.

Can metal sheaths be reused after exposure to molten metal?

Yes, if undamaged and cleaned properly, but lifespan depends on material degradation from thermal cycling and corrosion. Regular inspection is recommended.

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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: 金属护套

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URN:CNFX:ME:UNIT:METAL_SHEATH