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Properties – Aluminium Encoder Disc
Substrate
Material
4200GP, MIRO® 2
Thickness
0.5, 0.7 mm
Flatness
≤ 0.03
Optical Properties
Total light reflection
≥ 95 % (to DIN 5036-3 (U-Globe))
Diffuse light reflection
< 5 % (to DIN 5036-3)
Total light reflection
≥ 95 % (to ASTM E-1651 (TR-2))
Brightness
along
91 (to ISO 7688 (60° / calibrated 91.8))
across
91 (to ISO 7688 (60° / calibrated 91.8))
Surface Properties
Treatment (front)
brightened, anodised and PVD-coated
PVD Coating (front)
PVD AL 99.99
Iridescence Assessment (front)
Absolutely free of interference colors
Treatment (rear)
anodised
Mechanical Properties
Alloy
AL 99.9 (to DIN EN 573-3)
Hardness
Hard (to DIN EN 485-2)
Tensile strength
23,2 ~ 29,0 MPa
Yield strength
20.3 ~ 26.1 MPa
Elongation (A50)
≥2%
Deformation / Bending
≥ 1,5 x gauge of material (Bending radius)
Expansion
23.1 x 10-6 / K
Coating Layer
Material
black Ink
Thickness
1000 nm
Standard density
≥ 4.0
Customization-Capabilities
Max. resolution
1270 LPI
Bar / Window accuracy
≤ 0.003 mm
Concentricity of code track
≤ 0.005 mm
Shaping Accuracy
≤ 0.02 mm
Shaping Burrs
≤ 0.2 mm
Max Diameter
180 mm (approx.)
Function
reflective
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