tungsten crucibles for vacuum coating furnace
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- Supplier: Zhengzhou Shibo Nonferrous Metals Products Co. Ltd.
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Product Overview
Description
tungsten crucibles for vacuum coating furnace
Product Description
Physical and chemical properties
1. Purity: W≥99.95%
2. Density: ≥18.5cm3
3. Applicable temperature environment: ≤2400°C
Dimension and tolerance
Product Name Material Composition Purity Density Using temperature Highest temperature Tolerance Smooth degree Specifications | Tungsten crucible Tungsten 99.95% ≥17.8g/cm3 Within 2000°C 2400°C ±0.5mm Ra≤3.2
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Quantitative analysis | ||||||||||
Element | Ni | Mg | Fe | Pb | Al | Bi | Si | Mo | Ca | P |
Concentration | 0.001 | 0.0005 | 0.002 | 0.0001 | 0.0005 | 0.0001 | 0.001 | 0.002 | 0.0005 | 0.001 |
Element | C | O | N | Sb | Cu |
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Concentration | 0.001 | 0.003 | 0.0006 | 0.0006 | 0.0006 |
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Purity(Metallic Base) W≥99.95% | ||||||||||
Delivery condition | Specification | Tolerance |
Thickness |
Roughness (um) | ||
Diameter | Height | Diameter | Height | |||
Sintering | 10~500 | 10~750 | +/-5.0 | +/-5.0 | 8~20 | <3.5 |
Sintering finishing |
10~450 |
10~550 |
+/-0.5 |
+/-0.5 |
7~18 |
<2.5 |
Special sizes can be manufactured according to customers' requirements.
Manufacturing process
Item | Process | Equipment | Quality Check | |
1 | Powder purified | Purified furnace | GDMS | |
2 | Isostatic pressing | Isostatic pressing machine | Measurement of rough-processed | |
3 | IF forging | High-accuracy forging machine | Dimension measurements for product | |
4 | IF sintering | High temperature vacuum sintering furnace | Dimension measurements for product | |
5 | Final machining | High-accuracy turning machine | Surface quality/ roughness and density | |
6 | Package |
| Quality Test Report | |
Application:
Since the melting point of tungsten has reached 3410°C, tungsten crucible is widely applied in industry furnace such as sapphire growth furnace, quartz glass melting furnace, and reare earth smelting furnace. The temperature in working environment of tungsten crucible is above 2000°C. For sapphire crystal growth furnace, high-purity, high-density, no internal-crack tungsten crucible with other features of exact measurement and smooth inner surface has decisive influence on success ratio of seed growth, quality control of pulling crystal, metamictization pot-committed and service life during sapphire growth process.
Packaging & Shipping
Shipping : by Air, By Sea, By Express, TNT/DHL/ FedEx etc.
Our Services
1,reply your inquiry at the first moment
2,answer your question sincerely
3,to satisfy your requirement
4,deliver products timely
5,We will offer the tracking No.for checking
Company Information
Zhengzhou Shibo Nonferrous Metals Products Co., Ltd. As a High & New technology Enterprise established in 2005, with registered capital of RMB two million. We are specialized in molybdenum-tungsten products, MoSi2&SiC heating elements, and high temperature laboratory Furnace, Including development, production and sales. Located at Zhongyuan Industry Area, Zhengzhou City, Henan Province, where is a hub of communications, commercial and trading center in China.
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