Discount Price Alkali Washed Tungsten Sheet Plate - E-Beam Filament 7.5turns – WINNERS
Discount Price Alkali Washed Tungsten Sheet Plate - E-Beam Filament 7.5turns – WINNERS Detail:
Product Description
The choice of materials has a decisive influence on the emission ability and life of the electron gun. Filament must be made of high melting point and high resistivity material, generally made of tungsten wire. After passing through the strong current, the filament is heated to more than 1000 degrees.
The cathode must be made of a low work function material. The outer electrons of the atoms on the cathode surface, after being excited by a certain amount of heat or electrical energy, will detach from the nucleus and become free electrons. Tungsten wire is selected as the material, and its work function is 4.55 electron volts.
When the working temperature is 2500K, J = 0.5A / cm². The melting point of tungsten wire is 3655 K. When the working temperature is 2750 K. The evaporation rate is 0.0043mg / cm·s, and the corrosion resistance of tungsten wire is strong.
Product parameters
|
Products name |
EB tungsten filament/Cathod filament |
|
Material |
Pure tungsten, tungsten alloy wire |
|
Hot sale size |
φ0.8*14.5*12.5mm φ0.8*14.5*12.0mm φ0.75，φ0.5mm |
|
Product performance |
High melting point high resistance high strength low evaporation pressure |
|
Surface |
Cleaned , Electrolytic Polished |
|
MOQ |
20 pieces |
what can we provide
High-purity tungsten filament, longer service life and a reasonable price.
Order Information
Inquiries and orders should include the following information:
☑ Most of the grounding rings are customized products, please provide drawings for high-quality prices.
☑ The surface is bright surface, alkaline washing surface, etc.
☑ Please consult us for more details.
Product detail pictures:
Related Product Guide:
We have state-of-the-art equipment. Our products are exported for the USA, the UK and so on, enjoying a fantastic status among the clients for Discount Price Alkali Washed Tungsten Sheet Plate - E-Beam Filament 7.5turns – WINNERS , The product will supply to all over the world, such as: Johannesburg, Cancun, Dominica, We pay high attention to customer service, and cherish every customer. We have maintained a strong reputation in the industry for many years. We are honest and work on building a long-term relationship with our customers.
By Claire from Mombasa - 2018.06.26 19:27
The company comply with the contract strict, a very reputable manufacturers, worthy a long-term cooperation.
By Adela from kazan - 2018.10.31 10:02
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