MY ESS-Ribbon
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Description
ESS is the acronym for Elliptically Shaped for Sealing-in. MY ESS-ribbon, made of yttrium-mixed oxide doped molybdenum, is used to ensure a reliable flow of electricity in glass lamps and is characterized by their tapered edges, usually produced by an etching process.
Material Properties (for reference)
Physical properties of the material should be similar to the values listed as following table.
Parameter |
Unit |
Value / Specification |
Finishing |
|
Annealed under reducing hydrogen atmosphere |
Density |
g/cm3 |
≥10.1 |
Tensile Strength |
MPa |
750 – 1000 |
Surface Condition |
|
The surface is dull and free of oxide layers and impurities that are visible to the naked eye. |
Appearance |
|
The edges are free of defects such as kinks, splits, ripples, twists or burrs. |
Roughness Ra |
m |
≥0.15 |
Sweep |
|
The radius of a bow of 1 m of the ribbon, hanging loose, may not be less than 400 mm (measured in the direction of winding). The twist may not exceed 90° on an examined length of 50 cm. |
Curvature |
mm/200mm |
≤2 |
Edge Line |
|
The fringing to the edge line may not exceed 40 μm to the midline of the ribbon. |
Y-Mixoxide Fraction |
% |
0.47 – 0.60 |
Al |
g/g |
≤10 |
C |
g/g |
≤30 |
Fe |
g/g |
≤100 |
W |
g/g |
≤300 |
Rest of Elements |
g/g |
≤20 (per element) |
Product Specifications
Specifications: Width (1.0-15.0)mm; Thickness (0.01-0.30)mm
Product Package
The ribbons will be delivered on clear spools with drying agent (silica gel) sealed in a polyethylene bag. The ribbon should not touch the spool laterally. Uneven coiling is not allowed. Coiling direction and dimensions of the spool shows a desired spool type.
If you have got any question or inquiry regarding molybdenum, please feel free to contact us by email: sales@chinatungsten.com, sales@xiamentungsten.com or by telephone:86 592 512 9696/86 592 512 9595.