Tungsten Heat Shield
Tungsten heat shields are mainly used as a material for construction in specific areas of vacuum furnace hot zones. As the heat-shield parts in the sapphire growth furnace, the most decisive function of the upper and bottom cover plates is to prevent and reflect the heat in the furnace. Heat-shield parts with high density, exact measurement, smooth surface, convenient assembly, and reasonable design have great significance in improving crystal pulling.
What is a Tungsten heat shield?
The tungsten/Wolfram heat shield is to keep the temperature inside of the tungsten crucible and prevent outside people from being hurt. The tungsten heat shield is made of tungsten sheet with a purity of over 99.95%. The production process of the tungsten heat shields in the sapphire growth furnaces is using tungsten powder by hydrostatic compaction and sintered at high temperatures. Tungsten heat shields used in sapphire growth furnaces can be made by hot rolling and cold rolling.
Application
Tungsten/Wolfram heat shields are mainly used as a material of construction in specific areas of vacuum furnace hot zones. A maximum operating temperature of 2400°C can be achieved. As the heat-shield parts in the sapphire growth furnace, the most decisive function of the upper and bottom cover plates is to prevent and reflect the heat in the furnace. Heat-shield parts with high density, exact measurement, smooth surface, convenient assembly, and reasonable design have great significance in improving crystal-pulling.
Advantage
- High melting point, 3420°C (6187°F)
- Low vapor pressure
- High hot strength
- Low thermal expansion
- High thermal conductivity
- High Young's modulus
- High corrosion resistance against acids and molten metals
- Recrystallization temperature, between 1100º - 1400ºC (2012º - 2550ºF)
- Good electrical conductivity
- High modulus of elasticity
Specification
Regular Specs
| Tungsten Cover Plates |
Tungsten Heat Shield/ Single sheet |
| Sheet Thickness |
Dia (Max) |
Sheet Thickness |
Dia(Max) |
Height(Max) |
| 2.0±0.1 |
660±0.2 |
2.0±0.1 |
450±2 |
660±1 |
| 1.0±0.08 |
660±0.2 |
1.0±0.08 |
610±2 |
660±1 |
| 0.5±0.04 |
660±0.2 |
0.5±0.04 |
700±2 |
660±1 |
We can supply tungsten needles as per customers' requests. As an experienced supplier, we can supply high-quality tungsten heat shields at competitive prices.
If there are any other specs, please contact us with no hesitation!
FAQ
Where Is Your Factory Located?
There is a saying that "Tungsten town, looking for Luoyang". Our factory is located in Luoyang, a Midwestern city in China. A strategic position with the world's largest reserve of molybdenum and the second-highest source of tungsten globally.
Why Is Your Product So Cost-Effective?
We cut out the middlemen in the end-to-end manufacturing process. Rather than obtaining semi-finished goods from other suppliers, we obtain our raw material of APT powder directly from its source.
Do You Do Spot Quality Checks Or Full Checks?
100% full inspection. Inspectors will check the finished product individually to ensure they adhere to all parameters. All unqualified products are discarded.
How Do You Ensure Your Lead Time?
We have an efficient Order Management System, from material preparation to machining, and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.
Company Profile
We are Luoyang Bless Tungsten Molybdenum Material CO., Ltd in China. We are the main manufacturer of tungsten and molybdenum materials, and our products have been exported for many years. Located in Luoyang, Henan province, which is the number one reserve of tungsten minerals in China, we have a unique advantage in sourcing the highest quality materials.
Over the past 20 years, BLESS focused on the Molybdenum and Tungsten powder process, which refining Ammonium Molybdate powder and ammonium Tungstate powder into Molybdenum and Tungsten powder. Since 2002s, we have been engaged in the production of Tungsten and Molybdenum products, such as rods, sheets, wire, crucibles, target-shaped products also deep processes according to customized products. Our products are exported to Germany, Japan, the USA, Brazil, India etc and always get good feedback from them. Wide production scale and difficult process of customized products are what our advantages.
One of our main strengths is our strict quality control process. We utilize SEMS technology to inspect the interior structure of every batch of raw rods. If any rods are found to have cracks or defects, they are immediately rejected. Additionally, we have our R&D laboratory dedicated to tungsten, ensuring continuous product improvement.
Furthermore, we have a fully automated production line. Every step is efficiently processed by machines. This guarantees a uniform quality standard and enables us to meet our customers' lead time requirements.
As a global supplier, we strive to provide the best tungsten and molybdenum materials to our customers. With our advantageous location, strict quality control, and automated production line, we are confident in our ability to meet your needs and exceed your expectations. Whether you require tungsten and molybdenum products for industrial applications or research purposes, we provide reliable and cost-effective solutions.
Content update time:2024.06.20
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