A high-performance flexible heat-resistant material and its technology

Abstract

The invention discloses a high-performance flexible heat-resistant material, which comprises PBO staple fiber yarn and stainless steel fiber yarn, wherein the count of the stainless steel fiber yarn is 5-50 Nm, the diameter is 6-50 μm, and the count of the PBO fiber yarn is 5-50 μm. 60Ne, the content of PBO staple fiber yarn is 20% to 80%, and the content of stainless steel fiber yarn is 80% to 20%. The material preparation process is as follows: firstly, the stainless steel fiber yarn is used as the core yarn, and the PBO staple fiber yarn is wound on the stainless steel fiber yarn in a spiral shape to form a covered yarn; then the covered yarn is twisted into two strands; finally the strand Woven into knitted fabrics to obtain finished products. The beneficial effects of the invention are: the advantages of PBO fiber and stainless steel fiber are combined, and it has high strength, high impact resistance, high cushioning property, high heat resistance, high corrosion resistance, and is very soft. Long service life and low cost.

Description

technical field [0001] The invention relates to a flexible heat-resistant material, in particular to a high-performance flexible heat-resistant material used in the glass manufacturing process and its technology. Background technique [0002] Flexible heat-resistant materials are widely used in various heat-resistant materials in the glass manufacturing process, conveyor belts, heat-resistant cushioning materials in aluminum extrusion molding, and conveyor belts. In the prior art, various heat-resistant fibers are generally used, such as stainless steel fibers, PBO, PBI, aramid, melamine formaldehyde, etc., either alone or in combination. Among them, stainless steel fiber and PBO fiber have the best heat resistance. The stainless steel fiber can be used for a long time at 650°C, the interstitial use temperature is greater than 800°C, the PBO fiber can be used for a long time at 300°C, the interstitial use temperature is greater than 500°C, and the instantaneous use temperat...

AI Technical Summary

Problems solved by technology

At present, the use of stainless steel fibers in the glass manufacturing process cannot meet the quality requirements of high-grade glass. Using PBO fibers alone can meet the requirements, but the service life is short and the cost of use is high.

The performance of PBO and stainless steel fiber interweaving material is between the two, and it cannot fully meet the requirements of high-grade glass.

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