Manufactur standard Molybdenum Crucible Sapphire - Molybdenum heat shield – WINNERS

REQUEST A QUOTE

Product Detail

Product Tags

Feedback (2)

Our eternal pursuits are the attitude of "regard the market, regard the custom, regard the science" and the theory of "quality the basic, belief the very first and management the advanced" for Tungsten alloy metal, Polished Wolfram Stick, Pure Molybdenum Electrode, We are looking forward to receiving your enquiries soon.

Manufactur standard Molybdenum Crucible Sapphire - 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.

Molybdenum heat shield

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:

Along with the "Client-Oriented" enterprise philosophy, a rigorous high-quality control process, superior production products along with a robust R&D group, we constantly deliver premium quality products, exceptional solutions and aggressive costs for Manufactur standard Molybdenum Crucible Sapphire - Molybdenum heat shield – WINNERS , The product will supply to all over the world, such as: Kenya, Liberia, Norwegian, We will supply much better products with diversified designs and professional services. We sincerely welcome friends from over the world to visit our company and cooperate with us on the basis of long-term and mutual benefits.

Molybdenum and Tungsten Crucibles

Molybdenum Facts

Molybdenum Fastener

Molybdenum Heater Manufacturer

Molybdenum Heating Wire For Heating Treatment Furnace

Molybdenum Spun Crucibles For Led Sapphire Crystal Growing

Molybdenum Tzm Rods

Molybdenum Wire 0.18 Mm

Pure Molybdenum Liners

Pure Molybdenum Pipe

The goods are very perfect and the company sales manager is warmful, we will come to this company to purchase next time.

By Joanna from Montpellier - 2017.06.29 18:55

The quality of the products is very good, especially in the details, can be seen that the company work actively to satisfy customer's interest, a nice supplier.

By Hulda from Panama - 2018.06.21 17:11