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Molybdenum Seed Chuck For Sapphire Crystal Growth Furnace
1. Description of Molybdenum Seed Chuck For Sapphire Crystal Growth Furnace:
Molybdenum seed crystal chuck, also known as molybdenum chuck, molybdenum seed crystal, is an important part of sapphire crystal growth furnace, and it belongs to a high temperature furnace component. The seed crystal chuck produced by Shaanxi Peakrise Metal has a purity of more than 99.95% and a density of more than 10.0g/cm3. Force.
The molybdenum seed crystal chuck is a device used to connect the seed crystal rod. When in use, the seed crystal rod is inserted into the molybdenum seed crystal chuck and fixed with a molybdenum pin. There are various shapes, such as molybdenum seed chucks with T-slots, etc., but their uses are the same.
2. Size of Molybdenum Seed Chuck For Sapphire Crystal Growth Furnace:
Mo Seed Chuck
Size: Dia13*195mm
Dia13*165mm
Dia16*195mm
Grade: Mo1,TZM,Mo-La
We also process according to customer’s drawings.
Purity: 99.95%,99.97%
Surface: polised
3. Actual Chemical content of Molybdenum Seed Chuck For Sapphire Crystal Growth Furnace:
Product name: | Mo seed chuck for sapphire crystal growth furnace | |||||||||
Tensile strength | 610 Mpa | |||||||||
Elongation | ≥10% | |||||||||
Purity | ≥99.95% | |||||||||
Surface: | Polished,smooth | |||||||||
Use temperature | 1800°C | |||||||||
Quantitative analysis | ||||||||||
Element | Ni | Mg | Fe | Pb | Al | Bi | Si | Ca | P | Cu |
Concentration(%) | 0.0006 | 0.0006 | 0.001 | 0.0006 | 0.003 | 0.0006 | 0.003 | 0.0006 | 0.001 | 0.0006 |
Element | C | O | Sb | |||||||
Concentration(%) | 0.001 | 0.005 | 0.0006 | |||||||
Purity(Metallic Base) Mo≥99.95% |
4. Application of Molybdenum Seed Chuck For Sapphire Crystal Growth Furnace:
Molybdenum seed chuck mainly used for sapphire crystal growthing furnace,it’s contact with seed and rod,it between crystal and pulling rod, Before growing. need put seed (small piece of sapphire) in the seed holder and bind WRe wire.melt the raw materials and put down seed to it.
5. Precautions of Molybdenum Seed Chuck For Sapphire Crystal Growth Furnace:
Points to note when using seed crystal chucks:
1). According to the requirements during installation, and inspect
each furnace, there should be no dander.
2). The number of furnaces used for seed crystals should be clearly
recorded, in case the service life is exceeded and continued use
will affect the quality of the crystals.
3). Use waste seed crystals for slag hoisting. After slag hoisting,
replace them with usable seed crystals. Hanging materials and
pulling crystals must have thin necks. The diameter of the thin
necks for crystal pulling should be 3-5mm; .
4). During the crystal pulling process, always observe the liquid
level, crystal and other furnace conditions (frequency not less
than 1 time/10 minutes) to ensure that the edge of the crucible is
not crystallized to prevent the seed crystal from being twisted and
broken by the crystal.
5). When the seed crystals are heavy, the number of revolutions of
the seed crystals should be raised and lowered in several small
steps (2 rpm); when the seed crystals are heavy, they should be
raised and lowered rapidly, and should not be performed
intermittently, so as to avoid the seeds or The slender neck is
broken or damaged by sudden acceleration of gravity or
weightlessness.
6). When cutting the seed crystal, it should be cut at the thinnest
part of the thin neck. Pay attention to the appropriate force, and
do not twist the seed crystal with pliers; otherwise, the seed
crystal must be stopped, handed over to the work section, and sent
for polishing.
7). Replace new seed crystals every 100 furnaces; the seed crystals
of furnaces with poor vacuum should be replaced 2 furnaces in
advance.
Other Related Products For Sapphire Crystal Growth Furnace:
W crucible Mo thermal field W/Mo heater W/Mo end Screen
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