Polished Tungsten Foil
OVERVIEW
Polished Tungsten Foil has played an important role in cutting-edge fields such as aerospace, semiconductor, and medical due to its core characteristics of "high temperature resistance, high hardness, low volatility, and strong radiation shielding". Our production strength can guarantee high-precision customized processing for customers.
In addition, our company's hot-selling products include Tungsten Rod, Electrodes For Resistance Welding, Tungsten Alloy Counterweight, etc. If you are interested, please feel free to contact us.
CHARACTERISTICS
Excellent high-temperature performance
The melting point of tungsten is as high as 3422℃. It can still maintain excellent mechanical strength and structural stability in high-temperature environments (such as above 1000℃) and is not easy to soften, melt, or volatilize.
High strength-to-weight ratio
Tungsten has a high density (19.3g/cm³), but the foil can be processed to a micron-level thickness (e.g., 5-100μm), combining light weight with high strength, making it suitable for scenarios with dual requirements for weight and strength.
Excellent electrical and thermal conductivity
Wium's electrical conductivity is about 30% that of copper, and its thermal conductivity is about 50% that of copper. However, tungsten can still maintain stable electrical and thermal conductivity in high-temperature environments and can be used in high-temperature working conditions that require heat dissipation or conduction.
Good chemical stability
Tungsten has good corrosion resistance to most acids, alkalis, and gases (such as oxygen and nitrogen) at room temperature. It only reacts with strong oxidants at high temperatures, making it suitable for long-term use in harsh environments.
SPECIFICATION
|
Grade |
W1,W2 |
|
Purity |
99.95%,99.99%,99.999% |
|
Thickness |
0.07mm |
|
Length |
400-1500mm |
| Width | 100-300mm |
|
Density |
19.1g/cm3 |
|
Shape |
Tape, Foil |
|
Surface |
Bright, Polish |
|
Standard |
ASTM B760,GB/T3876 |
|
Certification |
ISO 9001 |
APPLICATION
1. High-temperature industry and heat treatment field
High-temperature furnace seals: Polished Tungsten Foil is used for sealing the doors of vacuum furnaces and sintering furnaces to prevent carbonization or oxidation failure of materials at high temperatures.
Thermocouple protection sleeve: Wrap high-temperature thermocouples to prevent erosion by molten metal or corrosive gases and ensure temperature measurement accuracy.
2. Electronics and semiconductor industry
Electronic packaging heat sink: Fits the chip surface to quickly remove heat and help high-power devices dissipate heat. Compared with copper foil, Tungsten Tape has a slower thermal conductivity decay at high temperatures.
Semiconductor evaporation target: As an evaporation source material, tungsten film is deposited in the vacuum evaporation process to manufacture chip interconnect wires and barrier layers.
Electron tube cathode support structure: In high-vacuum electron tubes (such as X-ray tubes), it supports the cathode filament and withstands high-temperature electron bombardment without deformation.
3. Aerospace field
Rocket engine nozzle lining: Used in high-temperature gas channels of rocket engines. Compared with ceramic materials, tungsten foil has stronger thermal shock resistance.
Satellite thermal control components: 99.95% Tungsten Foil acts as a thermal radiation shield or heat conduction path to regulate the surface temperature of the satellite and avoid the impact of extreme temperature differences (-270℃ to +120℃) on the equipment.
4. Medical field
Radiotherapy equipment shielding: Tungsten Foil and Strip are used to wrap X-ray tubes to block scattered rays and protect medical staff. It is lighter and thinner than lead materials and is resistant to radiation aging.
5. Precision manufacturing field
It can be processed to ultra-thin thickness, with high surface flatness and finish, and used in micro sensors as high-temperature resistant electrode materials to ensure the stability of signal transmission in high-temperature environments.
PROCESS
①Prepare high-purity tungsten powder and add trace alloy elements (such as 0.5-2% Re to improve plasticity) as needed.
②Press the tungsten powder into ingots by isostatic pressing or die pressing, and sinter at high temperature in a vacuum or hydrogen environment to increase density through solid phase diffusion.
③Perform plastic processing through hot forging, hot rolling, multi-pass cold rolling, and roll-to-roll continuous rolling processes.
④Perform surface cleaning and polishing to reduce surface roughness.
⑤Strict quality control and performance testing, such as mechanical properties, thickness testing, vacuum performance, etc.
PICTURES
VIDEO
WHY CHOOSE US
24-Hour Response Service
Upon receiving customer inquiries, we promptly and accurately ascertain the product they require, ensuring there are no issues related to time differences. Our customer service team operates around the clock, ensuring that no matter where our customers are located, they receive the same level of attention and service.
01
Competitive prices
Our prices are very reasonable compared to other overseas suppliers and are worthy of our product quality. Moreover, all our products have obtained ISO9001 certification.FANMETAL can provide overseas customers with the most cost-effective non-ferrous metal products.
02
Advanced production equipment and professional technicians
We have professional CNC machine tools, rolling machines, sintering furnaces, cutting machines, welding equipment and surface treatment equipment. Moreover, our technicians can design drawings and customize production according to customer requirements.
03
On-time delivery and timely after-sales service
Unless there are special circumstances, we will strictly abide by the delivery deadline and deliver the products to customers safely by international express within the deadline. If any after-sales problems arise, we will provide effective solutions. If necessary, we will give discounts or compensation for the next order.
04
Global Shipping
We cooperate with professional international logistics companies and can provide multimodal transport solutions including full container, DHL, air transport, sea transport, etc. to meet the transportation needs of different goods and different time limits.
05
CASE
Polished Tungsten Foil, Tungsten Foil Tape, Tungsten Foils And Strips To Egypt
Recently, FANMETEL and an Egyptian customer successfully completed an important order and successfully exported high-quality Tungsten Foil Tape to Egypt. The achievement of this cooperation not only helped us to open up part of the African market, but also demonstrated our company's outstanding production strength and significant competitive advantages in the field of tungsten products. From the strict screening of raw materials, to the fine processing of the production links, to the multiple inspection processes of the finished products, each step has undergone strict quality control to ensure that the key indicators such as product purity, thickness uniformity, and surface finish are at the first-class level.
PRODUCT QUALIFICATION
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