Excellent quality Polished Molybdenum Rod - Molybdenum heat shield – WINNERS
Excellent quality Polished Molybdenum Rod - Molybdenum heat shield – WINNERS Detail:
Product Description
As the heat insulation component in the vacuum furnace , the biggest function of the heat shield is to block and reflect the heat in the furnace . Therefore , high-purity , accurate size , smooth surface, easy assembly , and reasonable design of heat shields are very important . Molybdenum heat shields are generally produced and processed with 0.5-1.2 mm molybdenum sheets . Generally, there are 4-6 layers. The inner layer of the furnace is made of high-temperature molybdenum TZM material with a thickness of 1.2 mm . Molybdenum strips are used to separate the layers with a space of 7mm . Other molybdenum heat shields are made of 0.5 – 0.8 mm MO1 material . Fasten them with molybdenum screws or molybdenum wire rods.
Product Parameters
| Products name | Molybdenum heat shield |
| Available material | Tungsten、Molybdenum、MoLaTZM、SS304(Stainless steel) |
| Thicknes | 0.2~0.5~1mm |
Design points of metal heat shield
| Material thermal properties | The maximum temperature of the selected metal material should be greater than the ambient working temperature, and the thermal deformation of the metal should be small. When the temperature is higher than 900℃, tungsten, molybdenum and tantalum sheets are generally used. Below 900℃, stainless steel sheet is generally used |
| material blackness | Choose a material with low blackness, the reflection effect of the surface is better, and the surface finish is higher. |
| Material thickness | The thickness of the screen should be as thin as possible. Molybdenum is generally 0.2~0.5mm, and stainless steel sheet is generally 0.5~1mm |
| material price | Under the condition of meeting the working temperature, the cost should be considered |
| Determination of the number of layers of heat shield | With the increase of the number of layers, the heat loss will decrease, the cost will increase, the structure will be complicated, and the vacuum degree will be more difficult to meet the working requirements. Increase to three layers to improve about 8%. The number of layers is not the better, and it should be considered comprehensively. The working temperature is 1000 ℃, and a maximum of 6 layers of screens can be used. |
| Spacing between each layer of heat shield | The spacing should be minimized. The thermal effect of increasing the distance is not large. If the spacing is too small, the two layers of heat shields will be connected together due to thermal deformation. Reduce the spacing, generally about 10mm |
| connection between each layer | Each layer of heat shield should be connected, and it should be ensured that the contact area of the connection is not too large, which will reduce the thermal efficiency. Use bushings and washers to connect each layer. |
| Maintenance of heat shields | The heat shield should be designed to be easily removable, and the thermal expansion and contraction properties of the material should also be considered. |
| The distance between the first screen and the radiating surface | Generally 50~100mm |
| The distance between the outermost screen and the circulating water wall | Generally 100~150mm |
Order Information
Inquiries and orders should include the following information
● Drawing of the Molybdenum isolation screen
● Material of the screen( W, Mo, Ta or SS304)
● Quantity
Product detail pictures:
Related Product Guide:
We are convinced that with joint endeavours, the small business between us will bring us mutual benefits. We could assure you products quality and competitive selling price for Excellent quality Polished Molybdenum Rod - Molybdenum heat shield – WINNERS , The product will supply to all over the world, such as: Florence, Norway, Austria, Insisting over the high-quality generation line management and prospects guide provider, we have made our resolution to offer our shoppers using the initially stage purchasing and soon after provider working experience. Preserving the prevailing helpful relations with our prospects, we even now innovate our product lists the many time to meet up with the brand new wants and stick to the latest trend of this business in Ahmedabad. We're ready to facial area the difficulties and make the transform to grasp many of the possibilities in international trade.
By Prudence from Ghana - 2018.09.29 17:23
Hope that the company could stick to the enterprise spirit of "Quality, Efficiency, Innovation and Integrity", it will be better and better in the future.
By Jean from Cyprus - 2017.08.15 12:36
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