A high-temperature resistant and wear-resistant composite protective sleeve and its manufacturing process
By using a layered substrate and a modified impregnating resin system in the protective sleeve to form a continuous inorganic layer, the problems of sleeve structure collapse and filler peeling under high temperature environment are solved, achieving the effects of high temperature wear resistance and high density.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DEZHOU HANGXING INTELLIGENT EQUIP CO LTD
- Filing Date
- 2026-04-23
- Publication Date
- 2026-06-02
AI Technical Summary
Existing protective sleeves suffer from structural collapse due to the thermo-oxidative degradation of the resin matrix under high-temperature conditions. Inorganic anti-friction fillers are easily peeled off, and the molding process makes it difficult to achieve deep wetting of high-viscosity resin and directional arrangement of fillers, resulting in low overall density of the sleeve.
The system employs a layered substrate and impregnated resin system, including silica aerogel felt, polyimide film tape, and alkali-free glass fiber braided sleeve, combined with vinyl-terminated polymethylphenylsiloxane, surface-modified hexagonal boron nitride powder, spherical pure aluminum powder, and zinc borosilicate glass powder. Through catalytic crosslinking and physical phase change, a continuous inorganic layer is formed, which enhances the structural strength and heat resistance.
This technical solution solves the problem of structural collapse of the casing under high temperature conditions, realizes the chemical anchoring of inorganic fillers and deep penetration of resin, and improves the wear resistance and overall density of the casing.
Smart Images
Figure CN122125956A_ABST