Wear-resistant Ceramic Rubber Steel Three-in-one Lining Plate - Composite Wear-resistant Lining Solution

The three-in-one wear-resistant lining plate is a functional composite made of high-strength alumina ceramic, elastic rubber layer, and mild steel plate via hot vulcanization or adhesive bonding. The ceramic layer (Al₂O₃ content ≥92%, HRA hardness ≥85) provides surface abrasion resistance; the intermediate rubber layer (Shore A hardness 60±5, tensile strength ≥12 MPa) absorbs impact loads and reduces noise; the steel plate layer (Q235B, thickness 3-10 mm) serves as a structural base for bolt or weld fixing. This product integrates the properties of three materials into a single component, suitable for high-wear and medium-to-low impact industrial conditions.

Compared with traditional single-material linings, the three-in-one structure offers quantifiable advantages in wear life, installation efficiency, and system protection. The ceramic surface limits wear rate to ≤0.1 mm/1000 h (dry silica sand sliding condition), providing a service life 4-8 times longer than that of high manganese steel linings. The rubber layer reduces the risk of ceramic cracking under impact while minimizing material build-up. The steel backing allows rapid replacement without on-site casting or adhesive application. Total thickness typically ranges from 15 to 30 mm, with areal weight approximately 40-70 kg/m², which is about 30%-40% lighter than a pure steel plate of the same thickness.

This product is primarily applied in coal chutes, ore transfer chutes, cement separator housings, steel plant bins, and pipe elbows. Operating temperature range is -40°C to +100°C, with instantaneous tolerance up to 120°C (without rubber softening). Under drop height ≤3 m and particle size ≤50 mm, ceramic spalling rate is below 0.5% per year. Installation recommends countersunk bolts to steel structures with bolt spacing of 200-300 mm. The product complies with GB/T 2792-2014 peel strength test (ceramic-rubber bonding strength ≥3.5 MPa).

When selecting a three-in-one lining plate, determine ceramic thickness (commonly 6/8/12 mm) and rubber hardness based on material characteristics (hardness, particle shape, impact frequency). For high-impact applications (e.g., outlet of large ore crusher), reinforced designs with rubber stud buffers are available. Regularly inspect groove wear depth on the ceramic surface; when depth exceeds 60% of ceramic thickness, partial replacement is recommended. This composite lining has passed ISO 9001 and ASTM G65 wear test standards, significantly reducing downtime maintenance costs and improving equipment operational continuity.

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