Achemetal Tungsten & Molybdenum Co., Ltd.
Subtlety and perseverance
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Pure tungsten electrode for tig Welding 2.4mm 3.2mm 4.0mm
product description
Pure tungsten electrode is a kind of electrode product with refractory metal tungsten as the main raw material, it is the earliest electrode used in TIG welding, but due to the high electron escape work, high tip temperature and easy grain growth of this electrode, it leads to difficulty in starting the arc, unstable arc beam and short service life, so the application field is limited, basically used in AC welding.Some researchers have pointed out that some modifiers such as rare earth oxides can be added to the pure tungsten production process, which will enable the prepared electrode products to have a higher overall performance and a wider range of applications.
Features:
The main reasons why a certain amount of rare earth oxides are added to pure tungsten are: (1) rare earth oxides have lower electron escape work, so they can improve the recrystallization temperature and electron emission ability of tungsten electrode products; (2) rare earth particles can improve the arc starting performance, arc column stability and ablation resistance of electrodes because they will hinder the deformation of tungsten grains. At present, the common rare earth oxides are cerium oxide, lanthanum oxide and yttrium oxide.
1Hex Nuts
2.Threaded Rod
3.Machined Screws
4.Rivets
5.Pins
6.Coiled or Cut Wire
7.Formed Wire Hangers
Tungsten is very corrosion resistant and has a very high melting point of 3420 degrees centigrade – making it the perfect fixing for some of the hottest vacuum furnace environments.
In the temperature of over 1700℃, tungsten screw can still be well functioned in the high temperature. Its working temperature ranges from 1700℃ to 2400℃.
| Grade | Element Composition % | |||||||
| W | Al | Ca | Fe | Mg | Mo | Ni | Si | |
| W1 | Remainder>99.95% | 0.002 | 0.005 | 0.005 | 0.003 | 0.01 | 0.003 | 0.005 |
| C | N | O | ||||||
| 0.008 | 0.003 | 0.005 | ||||||
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Our Advantage
1. Superior performance: long lifetime; shape is stable in using; small tolerance.
2. High quality raw materials: raw material is from state-owned enterprise. electric resistance is stable, tungsten is good at temperature rising, good in evaporation.
3. Professional: since 1991, in 28 years experiences in vacuum tungsten filaments production. we have the Professional team in research, production and sales. establish partnerships with at least 38 countries.
4. Service: you can get our quick response within 24 hours.