Molybdenum Screens
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Description
Thanks to the low content of interstitial impurities and metallic impurities and the small-grain texture of the material, the finished products boast outstanding plastic properties.
Some of molybdenum's important features in terms of its industrial application include its high heat resistance, electric conductivity and heat conductivity, its relatively low thermal neutron capture cross-section with a volume weight almost twice lower than that of tungsten, etc. Molybdenum's resistance to creep and stress-rupture at high temperatures in a vacuum and in protective atmosphere (argon, hydrogen) is noticeably higher than the same properties of many metals used as the base for heat-resistant materials.
As a result of molybdenum's low temperature coefficient of linear expansion and its high melting point, it ensures the dependable functionality of structures made from molybdenum that operate at high temperatures.
Molybdenum's high thermal conductivity is several times greater than that of ordinarily used heat-resistant alloys, which prevents thermal stresses during rapid heating and cooling.
Molybdenum is resistant to the effects of acids, alkalis and resistive in many molten metals and liquid glasses.
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specifications
JSC POLEMA makes products from molybdenum and its alloys of various constructions and dimensions, used to equip high-temperature installations with hydrogen or vacuum atmospheres for processes of sintering, annealing, growing monocrystals, etc.
Products: thermal screens, radiators, hot zones, etc. Depending on their construction, products are made using sheet materials made from molybdenum, and also from alloys based on molybdenum and other metals, fastening details made from molybdenum, and high-melting fillers (Mo, W, Mo-W).
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advantages
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Significant production experience
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Strict quality control of manufactured products
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Own R&D laboratory
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Flexible discount system
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Product names
When manufacturing molybdenum screens, depending on their design, sheet materials made of molybdenum, as well as alloys based on molybdenum and other metals, fasteners made of molybdenum, and refractory fillers (Mo, W, Mo-W) are used.
You can get full list of products by contacting our sales managers.: export_polema@metholding.com тел.:+7 4872 25-06-76.
You can get full list of products by contacting our sales managers.: export_polema@metholding.com тел.:+7 4872 25-06-76.
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chemical composition
Guaranteed chemical composition of MP-Мо molybdenum powder for screen production
*The weight percentage of Mo in MP-Мо powder is determined by subtracting the sum of the metallic impurities from 100%, controlled by Inductively Coupled Plasma Mass Spectrometry (ICP-MS).
| Grade | Мо, min %* | Chemical composition, max ppm | ||||||||||||
| Fe | Al | Ni | Si | Mg | Na | K | Ca | W | Mn | Zn | C | ∑Ме** | ||
| MP-Мо | 99,95 | 100 | 30 | 50 | 50 | 20 | 30 | 80 | 40 | 130 | 10 | 5 | 40 | 500 |
*The weight percentage of Mo in MP-Мо powder is determined by subtracting the sum of the metallic impurities from 100%, controlled by Inductively Coupled Plasma Mass Spectrometry (ICP-MS).
The gas-forming impurities C, O, N, H, S, F, Cl are not taken into account in the calculations of the proportion of molybdenum.
** Σ Ме – amount of metallic impurities.
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miscellaneous
The products are manufactured according to the agreed individual drawings of the customer.
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Application areas