Two-in-one composite plate for rollers

Main technical indicators of wear-resistant ceramic rubber composite liner:

Main technical indicators of wear-resistant ceramics

Alumina content ≥92%

Density ≥ 3.6 g/cm3

Rockwell hardness ≥ 80 HRA

Compressive strength ≥850 Mpa

Fracture toughness KΙC ≥4.8MPa•m1/2

Bending strength ≥ 290MPa

Thermal conductivity 20W/m.K

Thermal expansion coefficient: 7.2×10-6m/m.K

Main performance indicators of impact-resistant wear-resistant ceramic liner rubber:

Project name indicator

Breaking strength (Mpa) ≥14

Tear off extension (%) ≥ 350

Shore hardness (degrees) 55-65

Broken permanent deformation (%) ≤ 24

Rubber and ceramic adhesion (Mpa) (shear stress) ≥ 3.0

Temperature resistance ≤100°C

Rubber aging period ≥ 15 years

Technical specifications of ceramic roller rubber products:

1. The ceramic panel in the ceramic roller is smooth and smooth, wear-resistant, resistant to strong impact, easy to install and the ceramic surface is not easy to fall off. The ceramic size is: 20x30x10mm, the ceramic AL2O3 content: 95% or more, the Mohs hardness: 9 or more, the specific gravity: 3.7 or more, and the compressive strength is not less than 2.5 Gpa.

2. The ceramic dry abrasion test is carried out before fluidization. The standard is as follows: grinding at 200 RPM for 30 minutes, test load: 30 lbs, grit content: 50-70 MESH, and wear: 60 mm3 or less.

3. The steel plate on the surface of the drum installed by the ceramic drum is required to be sandblasted to a Sa.2-1/2 level and degreased. The surface of the non-adhesive part is also sandblasted, and after reaching Sa.2-1/2 level, the anti-rust primer is sprayed.

4, the rubber sheet in the ceramic drum rubber is required to use: thickness 5mm, hardness 70 ± 5SHORE, tensile strength ≥ 19Mpa, elongation ≥ 650%, steel / rubber peel strength ≥ 30Kg / 25Tmm, ceramic / rubber peel strength ≥ 50Kg/25Tmm.

5. When the ceramic roller is coated with cold glue, the German imported TRS cold vulcanized rubber special glue is used. Before the cylinder is vulcanized, the surface treatment is carried out by using TRS metal surface treatment agent. TRS cold vulcanized rubber can be wear-resistant, heat-resistant, flame-retardant, anti-static, anti-adhesive, stable in performance and not easy to aging. The bonding is efficient and fast, which is 5-10 times that of hot vulcanized rubber.

Alumina content ≥92-95%

Density ≥3.6-3.65 g/cm3

Rockwell hardness ≥85 HRA

Compressive strength ≥850 Mpa

Fracture toughness KΙC ≥4.8MPa•m1/2

Bending strength ≥ 290MPa

Thermal conductivity 20W/m.K

Thermal expansion coefficient: 7.2×10-6m/m.K

Tensile strength (Mpa) ≥19

Elongation at break (%) ≥ 650

Shore hardness (degrees) 65

Broken permanent deformation (%) ≤ 24

Rubber and ceramic adhesion ≥15N/mm

Surface pressure after bonding ≥80kq/cm2

Surface friction coefficient ≥0.85

Dynamic stroke 1.8 N/mm stroke number is 970

Rebound coefficient ≥51%

Tear growth coefficient ≥19N/mm

Wear factor <50mm3

Rubber aging period ≥ 15 years