Email : janet@tungstenmoly.com
tungsten heater
Classification :
Pure Tungsten
Description :
With special equipment,Heating Resistors made from tungsten wire HW41 is of high melting point,good corrosion resistance,and long life.Metal wire to be used as coating material can also be stranded round tungsten wire,which will be more convenient and efficient for further process.
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tungsten heater
With special equipment,Heating Resistors made from tungsten wire HW41 is of high melting point,good corrosion resistance,and long life.Metal wire to be used as coating material can also be stranded round tungsten wire,which will be more convenient and efficient for further process.
Heating Resistors are used as heating components to plate the substrates of kinescope,mirrors,plastics,metal and various decorations.Stranded wires are used as raw material of heating elements,and also as heating components of semiconductors and vacuum devices directly.
Feature
• High temperature performance
- According to the specific applications,High temperature property requirements are categorized.
•Diameter consistency
- Weight deviation of two consecutive 200mm-wire pieces is less than 0.5% of nominal value.
•Straightness
- Regular tungsten wire: in accordance with customer’s requirements.
Straightness tungsten wire: For the tungsten wire thinner than 100μm, vertical height of 500mm freely suspended wire should not be less than 450mm;
For the tungsten wire at or thicker than 100μm, the maximum arc height between pints with distance of 100mm is 10mm;
•Surface conditions
- Smooth surface, free of splits, burrs, cracks, dents, dots, grease contamination.
Specification
|
Diameter, mm |
Diameter telorance, % |
Weight ( 200mm ), mg |
Length min, m |
|
0.012−0.06 |
− |
>0.44−10.91 |
700 |
|
0.06−0.1 |
− |
>10.91−30.30 |
400 |
|
0.1−0.15 |
− |
>30.30−68.18 |
250 |
|
0.15−0.2 |
− |
>68.18−121.20 |
150 |
|
0.2−0.35 |
− |
>121.20−371.19 |
100 |
|
0.35−0.7 |
±1.5−±2.5 |
− |
same as 150g |
|
0.7−1.8 |
±1.0−±2.0 |
− |
same as 200g |
Chemical Composition
|
Grade |
W content, min, % |
Total impurity elements, max, % |
Each element, max, % |
|
W1 |
99.95 |
0.05 |
0.01 |
|
W2 |
99.92 |
0.08 |
0.01 |
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