Graphite Crucible
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Special graphite crucible for vacuum coating
Special graphite crucible for vacuum coating is applied to the aluminium evaporation gasification on CPP, PET, BOPP in vacuum to produce aluminum composite foil. It is a large consumption of components which must be used in the production process. The quality of graphite crucible can decide the length of working life and directly affect the product quality and the production cost of aluminum foil.
We have anti oxidation and anti leakage treatment of graphite material, greatly improves the oxidation resistance of graphite crucible, bulk density, flexural strength and compressive strength, enhanced corrosion resistance, hardness, lower porosity and permeability, greatly weakened the molten aluminum and gaseous aluminum molecular erosion ability and prolong the working life. Quality of graphite crucible for vacuum coating has been greatly improved. The antioxidant, no overflow, no crack, no leakage aluminizing, the evaporation is good, the working life is long, the average furnace reached 18600 meters / roll 50 - 60 furnace, 24000 meters / roll 40 - 50 furnace , the production of 12500 meters/roll, 10000 meters/roll, 9000 meters/roll, 5000 meters/roll, times of furnace have greatly improved.
Specification
|
Property |
Unit |
Value |
|
BULK DENSITY |
g/cm3 |
1.95 min. |
|
GRAIN SIZE |
μm |
43 max |
|
ELECTRICAL RESISTVITY |
μ.Ω.m |
8.9 max. |
|
COMPRESSION STRENGTH |
MPa |
125 min. |
|
FLEXURAL STRENGTH |
MPa |
68 min. |
|
SHORE HARDNESS |
-- |
65 min. |
|
ASH CONTENT |
% |
0.046 max. |
Size
|
OD |
ID |
HEIGHT |
WALL THICKNESS |
|
135mm |
115mm |
120mm |
10mm |
graphite crucible
A crucible is a container used to hold metal for melting in a furnace and it is needed to withstand the extreme temperatures encountered in melting metals. The crucible material must have a much higher melting point than that of the metal being melted and it must have good strength even when white hot.
Graphite crucible can withstand the high temperature, and has good resistance to chemical erosions and thermal shock. Especially graphite crucible is ideal for the melting of aluminum, copper and other metals.
Quartz crucible has the advantages of high purity ,high temperature resistance, with big size ,good thermal insulation, economization on energy ,quality stability etc.
Fused quartz crucibles are used in the manufacture of silicon metal for semiconductor wafer applications and polysilicon. In order to produce high quality wafers, starting materials are added to a crucible heated to high temperatures and pulled from the melt as a single crystal. Fused Quartz is one of the few materials that can combine the high purity and high temperature properties required for this process.
GW offers graphite crucibles & Ceramics (Quartz) crucibles in different sizes and types. Whenever you need crucibles, just feel free to contact us, and we will reply you in a shortest time.
Specifiacation
| Approx.Capacity (kg) | TOP Dia | BOTTOM Dia | Height | |||
|---|---|---|---|---|---|---|
| 1 | in | mm | in | mm | in | mm |
| 2.75 | 70 | 1.96 | 50 | 3.14 | 80 | |
| 2 | in | mm | in | mm | in | mm |
| 3.14 | 80 | 2.16 | 55 | 3.74 | 95 | |
| 4 | in | mm | in | mm | in | mm |
| 4.33 | 110 | 3.14 | 80 | 5.11 | 130 | |
| 6 | in | mm | in | mm | in | mm |
| 4.72 | 120 | 3.26 | 83 | 5.90 | 150 | |
| 8 | in | mm | in | mm | in | mm |
| 5.51 | 140 | 3.70 | 94 | 6.69 | 170 | |
| 10 | in | mm | in | mm | in | mm |
| 6.29 | 160 | 4.33 | 110 | 7.08 | 180 | |
| 12 | in | mm | in | mm | in | mm |
| 7.08 | 180 | 4.52 | 115 | 9.44 | 240 | |
| 16 | in | mm | in | mm | in | mm |
| 8.26 | 210 | 5.51 | 140 | 10.23 | 260 | |
| 20 | in | mm | in | mm | in | mm |
| 8.46 | 215 | 6.29 | 160 | 10.23 | 260 | |
| 60 | in | mm | in | mm | in | mm |
| 10.63 | 270 | 7.67 | 195 | 13.18 | 335 | |
| 70 | in | mm | in | mm | in | mm |
| 11.61 | 295 | 7.87 | 200 | 13.78 | 350 | |
| 80 | in | mm | in | mm | in | mm |
| 11.61 | 295 | 8.07 | 205 | 14.56 | 370 | |
| 100 | in | mm | in | mm | in | mm |
| 12.99 | 330 | 8.66 | 220 | 15.74 | 400 | |
| 120 | in | mm | in | mm | in | mm |
| 13.58 | 345 | 9.64 | 245 | 18.11 | 460 | |
| 150 | in | mm | in | mm | in | mm |
| 15.15 | 385 | 10.63 | 270 | 20.47 | 520 | |
| 200 | in | mm | in | mm | in | mm |
| 16.14 | 410 | 11.22 | 285 | 22.04 | 560 | |
| 250 | in | mm | in | mm | in | mm |
| 17.32 | 440 | 11.22 | 285 | 23.22 | 590 | |
| 300 | in | mm | in | mm | in | mm |
| 18.11 | 460 | 12.20 | 310 | 22.83 | 580 | |
| 350 | in | mm | in | mm | in | mm |
| 18.50 | 470 | 12.20 | 310 | 25.59 | 650 | |
| 400 | in | mm | in | mm | in | mm |
| 20.47 | 520 | 13.78 | 350 | 25.19 | 640 | |
| 500 | in | mm | in | mm | in | mm |
| 20.66 | 525 | 13.78 | 350 | 27.55 | 700 | |
| 600 | in | mm | in | mm | in | mm |
| 22.44 | 570 | 14.17 | 360 | 29.92 | 760 | |
| 800 | in | mm | in | mm | in | mm |
| 22.83 | 580 | 14.17 | 360 | 31.49 | 800 | |
| 1000 | in | mm | in | mm | in | mm |
| 25.19 | 640 | 17.71 | 450 | 32.67 | 830 | |
