Tungsten Heat Shield
Tungsten heat shield are mainly used as a material of construction in specific areas of vacuum furnace hot zones. As the heat-shield parts in the sapphire growth furnace, the most decisive function of upper and bottom cover plate 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 has great significance in improving the crystal-pulling.
What is Tungsten heat shield?
Tungsten/Wolfram heat shield is to keep the temperature inside of tungsten crucible and prevent outside people from hurt. Tungsten heat shield is made of tungsten sheet with purity over 99.95%. The production process of tungsten heat shield in the sapphire growth furnaces is using tungsten powder by hydrostatic compaction and sintered at high temperature. Tungsten heat shield used in sapphire growth furnaces can be made by hot rolled and cold rolled.
Application
Tungsten/Wolfram heat shield 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 upper and bottom cover plate 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 has great significance in improving the 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 needle as per customers' requests. As an experienced supplier, we can supply high quality tungsten heat shield with competitive price.
If there are any other specs, please contact us with no hesitate!
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 one by one, 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,our product 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 Molybdenum and Tungsten powder process, which refining Ammonium Molybdate powder, Ammonium Tungstate powder to Molybdenum and Tungsten powder. Since 2002s, we are engaged in the production of Tungsten and Molybdenum products, such as rod, sheet , wire, crucible, target shaped products also deep process according to customized products. Our products exported to Germany, Japan, USA, Brazil, India ect and always get good feedback from them. Wide production scale and difficult process 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 own R&D laboratory dedicated to tungsten, ensuring continuous improvement in our products.
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 are in need of tungsten and molybdenum products for industrial applications or research purposes, we are here to provide you with reliable and cost-effective solutions.
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