Molybdenum Heat Shield

Molybdenum Heat Shield:

As thermal insulation components, molybdenum heat shield and molybdenum covers
play a important role for heat blocking and reflecting in sapphire growth
furnace. A high purity, precisely sized, smoothly clean, easy assembly and
appropriately designed heat shield is significant for crystal pulling quality.

As the heat-shield parts in the sapphire growth furnace, the most decisive
function of molybdenum reflection shield 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.



molybdenum heat shield Dimension (mm):
Molybdenum Cover Plates Molybdenum 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
0.3±0.03 660±0.2 0.3±0.03 700±2 660±1

molybdenum heat shield processes and quality control:
No. Processes Equipment Quality
1 Molybdenum sheet 1.Physical and chemical properties
accordance with customer’s specification
2.Correct size 3.Clean surface, no defect.
2 Inspection
3 Roll bending Asymmetric three-rollers plate bending machine Correct
barrel height and diameter
4 Drilling and riveting CNC milling machine, bench driller Firmly
riveting
5 Cleaning Surface clean and no defect
6 Inspection Correctly positioned assembly holes
7 Assembling Clean surface
8 Cleaning Correct barrel height and diameter
9 Inspection Firm assembly, no bond between layers
10 Packing Firm wooden case within quality certificate

Minimum Order: 1 sets