08.02/2012
At JSC POLEMA, a member of the KOKS Group, the plan for a new electrical vacuum high-temperature fur
27.01/2012
JSC POLEMA's contribution to the development of medical technologies
03.06/2011
Progressive materials for multi-functional vacuum coatings
Application fields of materials for multi-functional vacuum coatings, characteristics of sputtering targets and evaporable sources used for technologies of physical deposition of hardening, protective, decorative and light-reflecting coatings, resistive, switching and transparent electro conductive films.
24.05/2011
Molybdenum and tungsten products for production of leucosapphires
POLEMA JSC is the leading global manufacturer of chromium, molybdenum, tungsten products, metal powders and composite materials.
Complex technologies of powder metallurgy allow to produce unique materials both for mass and piece production. Products have non-porous finely dispersed structure and set properties. It became possible due to well-examined technological processes that ensure high quality and economical efficiency.
Nowadays POLEMA JSC has the largest production complex in Russia for manufacturing of powders by means of different technological methods: hydrogen and calcium hydrogen reduction of oxides, shooping per inert gases and water, electrolysis, mechanical grinding and acid treatment.
Powders with purity of 99,99% are produced by means of technological hydrogen reduction of metals from oxides and electrolysis. POLEMA employs all traditional methods of compaction and shaping of powder products: hydraulic, hydrostatic and gas isostatic compression.
Vacuum sintering is done in the furnaces with reducing atmosphere.
Methods of deformation:
- rolling;
- open die forging;
- swaging forging;
- gas isostatic compression;
- calibration;
- extrusion.
Machinery of the enterprise allows to apply up-to-date metal working technologies. Mechanical working includes band machine cutting, electrolytic erosion, grinding at advanced surface-grinding machines with numerical program control, machine working of parts along 5 steering axles at machining centers.
The enterprise is constantly updating technologies, examines quality of its products, implements state-of-the-art technological processes. It allows to satisfy demands of different industries involved in production of advanced machinery.
