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Place of Origin: | P.R. China |
---|---|
Brand Name: | FOTMA |
Certification: | ISO 9001:2008 |
Model Number: | WAL-1, WAL-2 |
Minimum Order Quantity: | 1 pc |
Price: | Negotiable |
Packaging Details: | Plastic boxes, Paper cartons |
Delivery Time: | 20-25 days |
Payment Terms: | T/T, L/C, Western Union, PayPal |
Supply Ability: | 2 MT / Month |
Tungsten Purity: | 99.95% | Diameter: | 0.03mm - 0.8mm |
---|---|---|---|
Length: | Customized | Condition: | Black, Cleaned, Ground |
Density: | > 19.1 G / Cc | Tolerance: | + / - 0.01mm |
High Light: | Al Doped 218 Tungsten Wires,WAL3 0.03mm 218 Tungsten Wires,ISO9001 19.1g/cc tungsten cable |
Al Doped Tungsten Wire 218 Tungsten Wires 0.03mm - 0.8mm For Lightening Industry
There is a kind of tungsten wire named Doped Tungsten Wire, also known as 218 tungsten wire or non-sag tungsten wire. It is the forging of tungsten bar, and made of fine wire drawing, mainly used in incandescent, halogen and other electric light sources. For a variety of light bulb for the tungsten wire, also need to mix a small amount of potassium, silicon and aluminum oxides. Nowadays, the tungsten wire is generally made of a variety of drawing dies. The main application is to create the filament and high-speed cutting steel, also used in optical instruments, chemical apparatus and so on.
Physical and Chemical Properity of Doped Tungsten Wires:
1. Purity: 99.95%
2. Grade: WAL1,WAL2, WAL3
3. Density: 19.1g/cm3
4. The tungsten wire features excellent formability, long life and super lighting efficiency. Mainly used for making various electron tube, H series auto lamp,
halogen lamp and other special lamp
Advantage of Doped Tungsten Wires:
Doped tungsten wires are manufactured by the high tech of doping, acid washing, isostatic pressing, PLC controlled direct-sintering, swaging and auto feeding, The products are featured with minimum deformation at high temperatures, high recrystallization temperatures, uniformity in dimension and excellent coilability. For tungsten rod weighing 3kg.pc, its rough welding tungsten wire weighing 5kg/pc, this technology lakes lead in China, Customers are allowed to choose various types of tungsten wire in accordance with their specific applications.
Applications of Straight Tungsten Wires:
* For producing heating elements and parts in vacuum furnaces
* For producing electric light source parts and electric vaccum components
* For producing heating elements used in vaccum metalizing or plating
Appearance: W-wire is regular black covered with graphite. After graphite is removed it is metallic luster.
Tungsten Material Grades and Applications:
Type |
Applications |
W91 |
Applied for making filament, shock-resistance filament and other high-temperature-resistance devices. |
W71 |
Applied for making auto lamp filament and other anti-shock devices. |
W61 |
Applied for making coiled-coil filament. |
W31 |
Applied for making coiled-coil or tri-spiral CFL filament, incandescent filament and support. |
W41 |
Applied for making stranded tungsten wire, tungsten heater element. |
W42 |
Applied for making stranded tungsten wire, tungsten heater element and other no special temperature required devices. |
W11 |
Applied for making electrode and lead. |
Tolerance of Tungsten Wire:
Diameter µm |
Weight mg/200mm |
200mm weight tolerance% |
Diameter tolerance% |
|||
0 |
Ⅰ |
Ⅱ |
||||
6<d<18 |
0.12-0.98 |
-- |
±3 |
±4 |
Ⅰ |
|
18<d<40 |
>0.98-4.85 |
±2 |
±2.5 |
±3 |
|
|
40<d<80 |
>4.85-19.39 |
±1.5 |
±2.0 |
±2.5 |
|
|
80<d<300 |
>19.39-272.71 |
±1.0 |
±1.5 |
±2.0 |
|
|
300<d<350 |
>272.71-371.19 |
|
±1.0 |
±1.5 |
|
|
350<d<500 |
|
|
|
|
±1.5 |
±2.0 |
500<d<1800 |
|
|
|
|
±1.0 |
±1.5 |
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