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Non - Sag Pure Tungsten Wire 218 Wires 0.04mm - 1.2mm For Bulb / Lamp Filament

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Non - Sag Pure Tungsten Wire 218 Wires 0.04mm - 1.2mm For Bulb / Lamp Filament

China Non - Sag Pure Tungsten Wire 218 Wires 0.04mm - 1.2mm For Bulb / Lamp Filament supplier
Non - Sag Pure Tungsten Wire 218 Wires 0.04mm - 1.2mm For Bulb / Lamp Filament supplier Non - Sag Pure Tungsten Wire 218 Wires 0.04mm - 1.2mm For Bulb / Lamp Filament supplier

Large Image :  Non - Sag Pure Tungsten Wire 218 Wires 0.04mm - 1.2mm For Bulb / Lamp Filament

Product Details:

Place of Origin: P.R. China
Brand Name: FOTMA
Certification: ISO 9001:2008
Model Number: WAL-1, WAL-2, WAL-3 etc.

Payment & Shipping Terms:

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
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Detailed Product Description
Tungsten Content: > 99.95% Diameter: 0.04mm - 1.2mm
Unit Weight: Customized Condition: Black, Cleaned, Annealed
Density: > 19.1 G / Cm3 Tolerance: + / - 0.01mm

Non - Sag Pure Tungsten Wire 218 Wires 0.04mm - 1.2mm For Bulb / Lamp Filament

 

Non-sag tungsten wire is also called doped tungsten wire or 218 tungsten wire. It is made from tungsten bars, 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, non sag 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.

 

Brief Introduction of Non-Sag Tungsten Wires:


1. Purity: 99.95%
2. Grade: WAL1,WAL2, WAL3, WAL4 etc.
3. Density: 19.2g/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
 

Applications of Non-Sag 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.

 

Advantage of Non-Sag Tungsten Wires:

 

Non-sag 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.

 

Tungsten Material Grades and Applications:

 

Type

Name

Kind

Applications

WAL1

Nonsag tungsten wires

L

Used in making single coiled filaments, filaments in fluorescent lamps and other components.

B

Used in making coiled coil and filaments in High power incandescent bulb, stage decoration lamp, heating filaments, halogen lamp, special lamps etc.

T

Used in making special lamps, exposition lamp of copy machine and lamps used in automobiles.

WAL2

Nonsag tungsten wires

J

Used in making filaments in incandescent bulb, fluorescent lamp, heating filaments, spring filaments, grid electrode, gas-discharge lamp, electrode and other electrode tubes parts.

 

Tolerance of Tungsten Wire:

 

Diameter (μm)

Weight of 200mm length

Weight tolerance of 200mm length    % 

Diameter Tolerance  %

0 Grade

Ⅰ grade 

Ⅱ grade

 0 grade

Ⅰ grade

Ⅱ grade

18<d≤40

>0.98-4.85

±2 

±2.5

±3

-

-

-

40<d≤80

>4.85-19.39±2

 

±2.0 

±2.5 

-

--

-

80<d≤300

>19.39-272.71

±2 

 

±1.5

-

-

-

300<d≤350 

>272.71-371.19

 

±1.0 

±1.5

-

-

-

350<d≤ 500 

-

±2 

±2.0 

±2.5

 

 

 

500 <d≤1800 

-

±1.0 

±1.5

±2.0

 

 

 

 

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Non - Sag Pure Tungsten Wire 218 Wires 0.04mm - 1.2mm For Bulb / Lamp Filament

Contact Details
Hubei Fotma Machinery Co., Ltd.

Contact Person: Ms. Pauline

Tel: 86-27-87773485

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