23.12/2022
Merry Christmas and Happy New Year 2023!
27.06/2022
POLEMA’s QMS confirmed its compliance with ISO 9001:20015
POLEMA JSC confirmed the compliance of the current QMS with the requirements of ISO 9001:2015.
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.
Bronzes, brasses
Use
Powders of copper, bronze, and brass are used to produce filters, and machine parts (friction bearings) manufacturing via sintering, to deposit wear-resistant, anti-friction, corrosion-resistant and anti-scuffing coatings for the restoration and strengthening of machine parts in the mining and metallurgical industry; auto, streetcar/trolleybus and water transportation; power and oil & gas equipment; and for applying decorative coatings.
Grades, production method, chemical composition and properties
Grades | Production method | Nominal composition, properties |
AP-Cu | Gas- or water-sprayed copper powder |
Cu Fe<0.2 Ni<0.04 Zn<0.05 Sn<0.05 Making products by pressing and sintering. Filler for powder compounds |
AP-CuFe3ZnSi (Water atomization) |
Water-sprayed bronze powder for making parts |
Cu Fe3 Zn0.5 Si0.1 Good compressibility. Packed density 3.6-4.1 g/cm3 |
AP-CuAl8.5Fe4Ni5Mn1.5 | Gas-sprayed bronze powder for coatings |
Cu Al8.5 Fe4 Ni5 Mn1.5 Anti-frictional properties, increased resistance to abrasive wear, erosive and cavitational resistance, high strength of coating adhesion against dislocation |
AP-CuAl8.5Fe1.5Ni5Mn1.5 | Gas-sprayed bronze powder for coatings |
Cu Al8.5 Fe1.5 Ni5 Mn1.5 Anti-frictional properties, increased resistance to abrasive wear, erosive and cavitational resistance at low and high temperatures, high strength of coating adhesion against dislocation, quick coating comformability |
AP-CuAl9 | Gas-sprayed bronze powder for coatings |
Cu Al9 Anti-frictional properties with good resistance to corrosion and good plasticity |
AP-CuAl9Mn2 | Gas-sprayed bronze powder for coatings |
Cu Al9 Mn2 Anti-frictional properties, resistance to wear due to manganese strenghtening, and high resistance to corrosion |
AP-CuSi3Mn1 | Gas-sprayed bronze powder for coatings |
Cu Si3 Mn1.3 Anti-friction properties, resistance to corrosion in salt- and fresh-water, good workability, and increased elastic properties |
AP-CuPb30 | Gas-sprayed bronze powder for coatings |
Cu Pb30 High anti-friction properties during operation under increased pressure and high slip speeds, and high heat conductivity |
AP-CuAl9.5Fe1 | Gas-sprayed bronze powder for coatings |
Cu Al9.5 Fe1 Anti-friction properties with good resistance to corrosion and increased mechanical properties |
AP-CuSn4 |
Water-sprayed bronze powders for making parts using the PM method |
Cu Sn4 Cu Sn10 CuSn20 Good compressibility. Particle size: base fraction 0-160 microns. Packed density 3.5-4.5 g/cm3 |
AP-CuSn15 | Water-sprayed bronze powders for making parts using the PM method |
Cu Sn15 Base fraction – less than 40 microns. Packed density ≥ 3.8 g/cm3 |
AP-CuSn8P0.3 | Gas-sprayed bronze powder for coatings |
Cu Sn8 P0.3 Anti-friction properties, increased hardness, durability, wear-resistance and corrosion-resistance, improved workability |
AP-CuSn10P1 | Gas-sprayed bronze powder for coatings |
Cu Sn10 P1 Excellent anti-friction and elasticity properties, increased hardness, wear- and corrosion-resistance, improved workability, good sintering behavior during filters manufacturing using the PM method |
AP-CuSn5Zn5Pb5 |
Gas-sprayed bronze powder for coatings |
Cu Sn5 Zn5 Pb5 Good anti-friction properties, improved technological properties (workability), resistance to corrosion. Anti-scuffing, dense coatings on pipe threaded joints |
AP-CuSn5Zn5Pb5 AP-CuSn4Zn8Pb5 (Water atomization) |
Water-sprayed bronze powders for making parts using the PM method |
Cu Sn5 Zn5 Pb5 Cu Sn4 Zn8 Pb5 Compressed powder for making friction bearings and thermal compensators. Particle size: 0-160 microns, packed density 3.6-3.9 g/cm3, compactibility >7.9 g/cm3 at a pressure of 600 MPa. |
AP-CuSn7Pb10 | Gas-sprayed bronze powder for coatings |
Cu Sn7 Pb10 Zn1 P<0.5 Fe<0.5 Anti-friction and improved technological properties in coatings on sleeves (friction bearings) oil-seal rings. Resistance to cavitation |
AP-CuSn10Pb10 | Gas-sprayed bronze powder for coatings |
Cu Sn10 Pb10 High anti-friction and corrosion-resistance properties at high pressure and high slip speeds |
AP-CuSn10Pb1.5 |
Gas-sprayed bronze powder for coatings |
Cu Sn10 Pb1.5 Anti-friction properties, resistance to corrosion, wear-resistance at high pressures |
AP-CuSn4Zn4Pb17 | Gas-sprayed bronze powder for coatings |
Cu Sn4 Zn4 Pb17 High anti-friction properties, resistance to corrosion in deposited coatings, good workability |
AP-CuSn8.5Ni3 |
Gas-sprayed bronze powder for coatings |
Cu Sn8.5 Ni3 Si1 Anti-frictional, corrosion-resistant and wear-resistant properties, good adaptability in sliding couplers, and good coating adhesion against dislocation; low coating oil-absorption |
AP-CuSn8Ni5Si1B1 | Gas-sprayed bronze powder for coatings |
Cu Sn8 Ni Si B |
AP-CuCr1 | Gas-sprayed bronze powder for coatings |
Cu Cr1 Wear-resistance combined with high electrical and heat conductivity and heat-resistance |
AP-FeCu30 (Water atomization) |
Water-sprayed copper-based pseudo-alloy powder |
Fe Cu30 Compressed powder for making construction parts and composites using the PM method. Dampening properties and corrosion resistance |
AP-Cu63Zn37 AP-Cu70Zn30 AP-Cu80Zn20 AP-Cu90Zn10 (Water atomization) |
Water-sprayed bronze powders for making parts using the PM pethod |
Cu Zn37 0-100 microns, 0-200 microns and other Cu Zn30 0-280 microns, packed density 3-3.5 g/cm3 Cu Zn21 0-280 microns, packed density 3.2-3.6 g/cm3 Cu Zn10 0-280 microns, packed density 3.05-3.55 g/cm3. Fluidity <35 s |
AP-Cu63Zn37 | Gas-sprayed brass powder for coatings |
Cu Zn37 High durability and wear-resistance in coatings |
Advantages
A wide selection of alloys for solving various challenges in the restoration and strengthening of parts in mechanisms and equipment using thermal spraying and deposition, and in the creation of effective wear-resistant anti-friction and frictional coatings.
A fairly wide selection of compressed copper-based materials sprayed with high-pressure water are used to make structural parts and for use as fillers in composites and paints.
There is a wide selection of particle sizes for various uses: less than 40 (45), 20-63, 40-100, 40-60, 63-125, 100-280, 140-315, 160-280, 280-400, 50-315 microns. Powders with other particle sizes can be made at the client's request.
Powders intended for coatings are applied using plasma or gas deposition (thin fractions) and plasma sintering (large fractions) onto steel, using acetylene, propane/butane, compressed air, and the gas-dynamic method.