003 tungsten foil
- Category: Tungsten Foil >>>
- Supplier: Luoyang Advanced Refractory Metals Co. Ltd.
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Product Overview
Description
003 tungsten foil
Product Description
Production process of tungsten foil
Materials---hot rolling---annealing---cold rolling---leveling---annealing---machining---tungsten sheet
Production equipments
four-high cold mill, vacuum annealing furnace, W43G series straightener, hydraulic plate shears, water jet, wire cutting machine, flat-stone mill
Applications of Tungsten Foil
Since the melting point of tungsten has reached 3380oC, tungsten sheet is widely used in reflection shield, cover plate applied in the sapphire growth furnace, reflection shield, heating tape, connecting pieces applied in vacuum furnace, sputtering target applied in plasma coating film, and high temperature resistance boat.
| Chemical composition | ||||||||||
| W | Impurity content ( % ) , ≤ | |||||||||
| Al | Ca | Fe | Mg | Mo | Ni | Si | C | N | O | |
| blance | 0.002 | 0.005 | 0.005 | 0.003 | 0.01 | 0.003 | 0.005 | 0.008 | 0.003 | 0.005 |
| Type | Process | Delivery condition | Size(mm) | ||
|---|---|---|---|---|---|
| Thickness | Width | Length | |||
| W1 W2 W3 W4 | P/M | Cold rolled (Y)Stress relief annealing (m) | 0.10-0.20 | 30-250 | 50-500 |
| >0.20-0.4 | 50-250 | 50-500 | |||
| Hot rolled (R)Stress relief annealing (m) | >0.40-4.0 | 50-200 | 50-200 | ||
| >4.0-6.0 | 50-200 | 50-200 | |||
| Application | Be used in electronics, illumination, vacuum plating, electron-vacuum, shield, high temperature furnace industry and so on. | ||||
| hickness | Thickness tolerance | Width tolerance | Length tolerance | |
|---|---|---|---|---|
| Grade I | Grade II | |||
| 0.10-0.20 | ±0.02 | ±0.03 | ±3 | ±3 |
| >0.20-0.30 | ±0.03 | ±0.04 | ±3 | ±3 |
| >0.30-0.40 | ±0.04 | ±0.05 | ±3 | ±3 |
| >0.40-0.60 | ±0.05 | ±0.07 | ±4 | ±4 |
| >0.60-0.80 | ±0.07 | ±0.08 | ±4 | ±4 |
| >0.80-1.0 | ±0.08 | ±0.12 | ±4 | ±4 |
| >1.0-2.0 | ±0.12 | ±0.20 | ±5 | ±5 |
| >2.0-3.0 | ±0.20 | ±0.30 | ±5 | ±5 |
| >3.0-4.0 | ±0.30 | ±0.40 | ±5 | ±5 |
| >4.0-6.0 | ±0.40 | ±0.50 | ±5 | ±5 |
Quality standard
GB/T 3875-2006 (tungsten plate)
As a high performance materials, pure tungsten has high melting temperature, high density, low vapor pressure, low thermal expansion combined with good thermal conductivity, sufficient electrical resistance, high modulus of elasticity.
Tungsten sheets and disk are available with alkali washed or ground finish.
Pure tungsten Products is widely used for Furnace parts, Semiconductor Base Plates, Components for Electron Tubes, Emission Cathodes for Electron Beam Evaporation, Cathodes and Anodes for Ion Implantation, Tubes / Boats for Sintering of Capacitors, Targets for X-ray Diagnostics, Crucibles, Heating Elements, X-ray Radiation Shielding, Sputtering Targets, Electrodes.
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Packaging & Shipping
We offer material composition sheet and examination report which include density, flaw detection, dimensions and so on. Our products are packed in plywood case with expanded plastic. What's more, the case is moistureproof and grooved for products being placed stably.
Our Services
Company Information
We have 15 years experiences in producing and saling qualified Refractory metals to our customers
Production Equipments
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