WD-9 is a high temperature powder with light silicone treatment, mainly used in air heating elements of medium or high wattage loading. It can stand 1050℃ annealing and requires immediate sealing.
Chemical Analysis (%)
MgO CaO Al2O2 Fe2O3 SiO2
¡Ý94.0 ¡Ü1.5 ¡Ü0.9 ¡Ü0.5 ¡Ü2.5
Particle Distribution
Mesh £«40 £«60 £«80 £«140 £«200 £«325 £325
Dia(um) £«425 £«250 £«180 £«106 £«75 £«45 £45
Quantity (%) 0£1 26£34 16£28 18£28 6£14 8£14 0£8
Tap Density
2.28£2.40g/cm3
Flow
3# Ford Cup£¨¦Õ2.165mm£2.185mm£©£º140£200s/100g
4# Ford Cup£¨¦Õ3.97mm£4.01mm£©£º31£37s/100g
Electrical Property
Testing Condition
Tube ¡¡SUS304
Reduction ¡¡¦Õ8.0mm¡ú¦Õ6.6mm
Wire ¡¡Ni80Cr20,¦Õ0.35mm
Helix ¡¡¦Õ2.3mm
Heated length ¡¡43.0cm£45.0cm
Energized period ¡¡15 mins
Remark: Forusers¡¯reference, the chart here shows typical values of performance by this type of powder.
|
Home
