Fil de tungstène

Tungsten Wire Production Process

• Matières premières: Sélectionnez des produits de haute pureté tungsten powder.
• Métallurgie des poudres: Mélanger avec le liant et compacter en une billette verte.
• Frittage: Frittage à haute température pour éliminer le liant et augmenter la densité.
• Dessin: Draw the tungsten rod through the dies to form fine wires.
• Traitement thermique: Recuit pour réduire les tensions et améliorer les propriétés.
• Traitement de surface: Nettoyer et polir la surface.
• Découpe et personnalisation: Couper ou personnaliser selon les besoins.

Tungsten Wire Processing Method

• Frittage
• Forgeage
• Forgeage rotatif
• Roulant
• Polissage

Tungsten Wire Surface Finish

Depending on the intended applications, tungsten wire has two main surface finishes as follows:

• Noir: La surface est "telle que sertie" ou "telle qu'étirée", conservant une couche de lubrifiants et d'oxydes de traitement.
• Nettoyé: La surface est nettoyée chimiquement pour éliminer tous les lubrifiants et oxydes.

Tungsten Wire Cut-Resistance

Tungsten Wire, with its exceptional hardness and cut resistance, is used in cutting tools, high-temperature components, and protective gear. Compared to stainless steel, tungsten offers superior hardness and cut resistance, and compared to PE, it performs much better against sharp tools, making it ideal for high-performance applications.

Performance Comparison of Tungsten Wire, Stainless Steel Wire And PE
Items	Fil de tungstène		Stainless Steel Wire	PE
	Universal	High Strength Type
Diamètre	13 – 35 um	20 – 35 um	33 – 50 um	10 – 30 um
Résistance à la traction	3600 – 4000 N/mm2	4800 – 6000 N/mm2	1000 N/mm2	1000 – 1500 N/mm2
Density	19.3 g/cm3	19.3 g/cm3	7.85 g/cm3	0.91 g/cm3
Vickers Hardness	800 – 850 HV	950 – 1000 HV	≤ 210 HV	50 – 70 HV
Pulling Force	1% – 3%	1% – 3%	40% – 60%	10% – 50%
Cut Resistance (A1-A9)	A5 – A9	A5 – A9	A3 – A4	A2 – A3
Flexibility (1-10)	9	8	5	10

Tungsten Wire Applications

• Electronic Devices: Tungsten filaments are widely used to manufacture electronic components, including electron tubes, television picture tubes, semiconductor devices, and vacuum tubes. Their high melting point and excellent electrical conductivity make them essential in these applications.

• Lighting: Tungsten filaments are commonly found in incandescent and halogen bulbs due to their ability to withstand high temperatures and provide consistent illumination.

• Resistance Heating: Tungsten filaments are used in heating elements for electric stoves, ovens, and furnaces, thanks to their superior high-temperature stability.

• Vacuum Technology: Tungsten filaments serve as heating elements and electrodes in vacuum equipment, including electron microscopes, due to their durability and performance in low-pressure environments.

• Welding and Cutting: Tungsten filaments are key materials for electrodes in welding and cutting processes, such as TIG welding and laser cutting, because of their resistance to high temperatures and arc corrosion.

• Medical Equipment: Tungsten filaments are also utilized in medical devices, including X-ray tubes and imaging equipment, where their durability and performance are critical.

Tungsten Wire Packaging

The Tungsten Wire is carefully placed in wooden cases or cartons with additional support from soft materials to prevent any shifting during transportation. This packaging method guarantees the integrity of the products throughout the delivery process.