Molybdenum Heat Shield

Molybdenum (Mo) heat shield is the core insulation component of high-temperature vacuum furnace, single crystal growth furnace, sintering furnace and other equipment. It uses the high melting point, low thermal conductivity and corrosion resistance of molybdenum to effectively reduce heat loss and improve temperature uniformity.

Molybdenum heat shielding parts with high density, exact dimensions, smooth surface, convenient-assembly and reasonable-design has great significance in improving the crystal-pulling. As the heat-shield parts in the sapphire growth furnace, the most decisive function of molybdenum heat shield (molybdenum reflection shield) is to prevent and reflect the heat. Molybdenum heat shields can also be used in other prevent heat needs occasions.

Molybdenum heat shields are mostly made from molybdenum sheets by welding and riveting, molybdenum rods, molybdenum nuts and molybdenum screws are also used to make molybdenum heat shields. We provide molybdenum heat shields per customer's drawing.

Standard: ASTM B386, Type 361

Mo≥99.95%

Application temperature environment < 1900°C

Linear thermal expansion coefficient is small

Production and processing are relatively easy

Thermal conductivity is low and specific heat is small

Molybdenum Heat shields can be made any size and configuration. Dimensions and tolerances are according to your drawings. High-quality molybdenum products provide exceptional heat resistance. Price of molybdenum heal shield depends on size, complexity, configuration, and additional requirements specified in the order.

(1) Single-layer molybdenum heat shield
Application: Scenarios with low insulation requirements (such as vacuum annealing furnaces)
Material thickness: 0.5~3mm
Features: Low cost, but average heat reflection effect
(2) Multi-layer molybdenum sheet heat shield
Application: High-temperature furnaces (such as 1800℃ sintering furnaces, single crystal silicon furnaces)
Structure:
3~10 layers of molybdenum sheets (thickness 0.1~1mm/layer)
Layer spacing 5~20mm (optimizes heat reflection path)
Features: High insulation efficiency, but increased weight and cost
(3) Composite structure heat shield
Molybdenum + graphite: outer layer graphite (higher temperature resistance), inner layer molybdenum (anti-pollution)
Molybdenum + ceramic fiber: Improve the insulation effect in low temperature areas

Molybdenum heat shields are used in high-temperature resistance furnaces and sapphire growth furnaces due to their ability to withstand high temperatures and corrosion.
Heat-shield parts have high density, exact measurement, and smooth surface, which make them excellent in improving crystal pulling.
Molybdenum heat shield is most commonly used in vacuum furnace.

Are you a factory or manufacturer?
A: Yes, we are a factory but generally, we use our trading company to handle the business abroad. It will be convenient to receive the remittance and arrange the shipment.

What is the delivery method?
A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.

Why is your product so cost-effective?
A: 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 inspection or full inspection?
A: 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?
A: 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.

What is the MOQ of Mo heat Shields ?
A: Depends on quantity, generally, no MOQ limit.

How to pay for it?
A: A bank transfer (T/T) will be acceptable.

What is the delivery time?
A: around 7-20 days which depends on the quantity and production.

What is kind of the package?
A: Generally, we use a carton case or plywood case with protective material inside to ensure the save of cargo

What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.

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