China OEM Tungsten Foundry Crucibles - Tungsten Wire Filaments Supplier – WINNERS

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China OEM Tungsten Foundry Crucibles - Tungsten Wire Filaments Supplier – WINNERS Detail:

Product Description

The resistivity of tungsten filament is 5.3*10^-8. Tungsten has a high melting point, high resistivity, good strength and low vapor pressure. It is the best material for making incandescent filaments among all pure metals. Tungsten wire is generally drawn by various drawing dies. The main purpose is to manufacture filament and high-speed cutting alloy steel, and also used in optical instruments, chemical instruments and so on.

Product Parameters

Products name	Tungsten wire
Grade	W1, W2
Standard	GB/T 4181-2017
Purity	99.95%, 99.92%
Density	19.3g/cm³
Processing method	Molding, sintering, forging, drawing
Surface	Black wire, bright wire

Application

Application of tungsten and tungsten alloy wire.

Most of the tungsten filaments are used to make the filaments of various incandescent and tungsten halogen lamps and the electrodes of gas discharge lamps. People’s requirements for product quality and photoelectric parameter consistency of light bulbs are getting higher and higher, which requires us to improve the performance of tungsten wire by adding a small amount of other elements, so that it can meet the special requirements of certain fields.

Products name	added ingredients	Application field
Pure tungsten wire	/	Heating elements, evaporation coils, HID electrodes and coils, lead wires, hooks, side bars
Doped tungsten wire	0.2~0.4%SiO2 0.3~0.4%K2O	Incandescent lamp single spiral filament, bracket, guide rod or lead wire
Doped tungsten wire	0.02~0.05%Al2O3 0.2~0.4%SiO2 0.3~0.55%K2O	Incandescent lamp double helix filament, tube cathode and heater, vapor deposition heater, fluorescent lamp filament
Doped Thorium Tungsten Wire	0.2~0.4%SiO2 0.3~0.55%K2O 0.2~0.5%ThO2	Electron tube heating wire, argon arc welding electrode, connecting rod
Thorium tungsten wire	1.0% ThO2 1.5% ThO2 2.0~2.5% ThO2	Electrodes for Electron Tube Cathodes and High Intensity Gas Discharge Lamps, Emitting Tube Heat Wires, Hooks and Springs, Welding and Cutting Electrodes, etc.
Cerium tungsten wire	1.5~3.0%CeO2	Pulse tube heating wire, non-consumable welding electrode
Yttrium tungsten wire	2.0~3.0%Y2O3	Pulse tube heating wire, non-consumable welding electrode, HID electrode
Lanthanum tungsten wire	1.0~2.0%La2O3	Non-consumable welding electrodes
Tungsten and molybdenum wire	W-20Mo	Hooks, brackets, lead-out wires and other parts for lamps, heaters for electric vacuum devices
Tungsten rhenium wire	1.0~26.0%Re	Aviation bulb filament, microwave device filament, electron beam tube filament, phenomenon tube filament

Order Information

Inquiries and orders should include the following information.
● Surface: Back or bright wire.
● Diameter, weight or Length.
● Other special demand.

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Ground Tungsten Plate