Ceramic Fiber Textiles
Ceramic Fiber Twisted Rope
Code prefix CR
Ceramic fiber rope is twisted from the same yarn as the cloth, with glass filament or heat-resistant alloy wire reinforcement. Round rope suits a machined channel and a door that lands square; square braid suits a rectangular groove cut into a castable or steel frame, where a round section would roll out of position during closing.
- Continuous
- 1000°C
- 1832 °F
- Short peak
- 1260°C
- 2300 °F
- Construction
- Wire reinforced
- CR
Spec sheets are issued against the confirmed grade, with the test method named on the report.
01 — Product description
Product description
The product can resist splash erosion from molten metals such as aluminum and zinc.
Product parameters
| Item | Value |
|---|---|
| Color | White |
| Short-term tolerance temperature | 1260°C |
| Fiber diameter | 3~5μm |
| Aluminum oxide (Al₂O₃) | 45~48% |
| Silicon dioxide (SiO₂) | 45~55% |
| Iron(III) oxide (Fe₂O₃) | 0.7~1.2% |
| Calcium oxide, sodium chloride (CaO&NaCl) | 0.43% |
| Moisture content | |
| Organic fiber content |
Note: The above chemical composition is the composition of the ceramic fiber base material.
Ceramic Fiber Twisted Rope
| Item | Working Temperature (°C) | Diameter (mm) |
|---|---|---|
| Fiberglass reinforced | 650 | 3,4,5,6,8,10,12,14,15,16,18,20,25,30,35,40,50 |
| Metal wire reinforced | 1000 |
Ceramic Fiber Three-Strand Twisted Rope
| Fiberglass reinforced | 650 | 6,10,14,16,20,22,25,30,40,50 |
|---|
Ceramic Fiber Three-Strand Felted Twisted Rope
| Fiberglass reinforced | 650 | 6,9,13,16,20,22,25,32,38,40,50 |
|---|
Application scope
Suitable for thermal insulation of kilns, high-temperature pipelines, and vessels; sealing of furnace doors, valves, and flanges; production of high-temperature furnace door curtains; thermal insulation protection for engines and instruments; fire-resistant cable wrapping and high-temperature equipment thermal insulation wrapping; flue lining protection.
Working condition suitability and restrictions
Different reinforcement materials of this product correspond to different use temperatures. 1260°C is only the short-term tolerance temperature; long-term over-temperature operation is prohibited. The product can only withstand short-term splashing of molten aluminum and zinc, and cannot withstand continuous erosion or immersion by molten metal.
Usage precautions
- Cutting, processing, and installation of ceramic fiber material generate fiber dust. Maintain ventilation during operation, wear dust-proof protective equipment, and dispose of waste in accordance with local environmental regulations.
- The product contains a small amount of organic fiber. Initial high-temperature use may produce carbonization and smoking, which is a normal process characteristic and does not affect product performance.
- Use temperature should be matched according to reinforcement material. Over-temperature and over-working-condition use are strictly prohibited.
- During use, regularly inspect product condition. In case of powdering, damage, shrinkage, or failure, replace promptly.
- All technical data are for reference only. Actual performance depends on usage conditions. Users should conduct their own suitability testing and comply with relevant safety regulations and standards.
02 — Characteristics
Section follows the groove
A rope narrower than the groove migrates and opens the seal at the corners; a rope that fills it exactly has nowhere to seat.
Round or square
Round twisted rope for machined channels, square braid for castable and fabricated door frames.
Wire reinforcement
Alloy wire raises tensile strength and holds the section against door pressure at the cost of flexibility.
03 — Typical properties
Values typical, confirm against duty
| Test item | Value | Note |
|---|---|---|
| Construction | Round section on request | |
| Continuous, glass | Glass reinforced | |
| Continuous, wire | Alloy wire reinforced | |
| Short excursion | Both reinforcement types | |
| Section | Glass or wire reinforced | |
| Coating | Coating aids abrasion resistance |
04 — Standard sizes
| Product code | Dimensions |
|---|---|
| CR-G | Fiberglass reinforced, 650 C, diameter 3–50 mm |
| CR-S | Metal wire reinforced, 1000 C, diameter 3–50 mm |
| CR-3S | Three-strand twisted rope, glass reinforced, 650 C, diameter 6–50 mm |
| CR-3F | Three-strand felted twisted rope, glass reinforced, 650 C, diameter 6–50 mm |
05 — Where it is used
- Furnace and boiler door seals
- Kiln car and bell furnace joints
- Expansion joint packing
- Sight glass and access port seals
- Ladle and tundish lid gaskets
Service limits
- Confirm the groove width against the rope diameter before ordering; compression allowance is not interchangeable between sections.
- Wire-reinforced rope is conductive and not suitable as an electrical seal.
- Rope is a compression seal, not a structural support.
Related materials
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Ceramic Fiber Twisted Rope
CR