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Adhesion And Elongation Property | ||||||||||
Belt Core Material | Bonding Strength | elongation | ||||||||
Between Plies(N/mm) | Between Cover and Fabric Ply N/mm | Longitudinal Elongation At Break S ≥ | Longitudinal Reference Force Elongation %≤ | |||||||
Thickness of Cover Layer ≤1.5mm | Thickness of Cover ≥1.5mm | |||||||||
Polyester canvas | ≥5 | ≥4.5 | ≥5 | ≥10% | ≤4% |
Classification Of Cover Rubber As Follows | ||||||||||
Cover Grade | Tensile Strength | Elongation At Break ≥ | Wear Loss ≤ | Tensile Strength Ang Elongation At Break After Aging | ||||||
Mpa | Kgf/c㎡ | % | mm³ | % | ||||||
M | ≥24 | ≥240 | ≥450 | ≤125 | -25 ~ +25 | |||||
W | ≥18 | ≥180 | ≥400 | ≤90 | -25 ~ +25 | |||||
Z | ≥15 | ≥150 | ≥150 | ≤200 | -25 ~ +25 |