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Ground powders are obtained as a result of mechanical comminution of monolithic metal or alloy in a ball grinder. The particles of powder are of irregular orthorhombic shape. Basic offered products are:
Silicon powder grinded - used, among others, for production of trichlorosilan, refractories and abrasives.
| Chemical composition | |||||
| Powder grade | Composition [%] | Moisture [%] Max. | |||
| Si Min. | Impurities | ||||
| Fe | Al | Ca | |||
| MSi | 98,0 | 1,0 | 0,6 | 0,6 | 0,3 |
| Grain composition | |||||
| Powder modification | Grain classes [mm] | ||||
| 0 ÷ 0,040 | 0 ÷ 0,063 | 0 ÷ 0,300 | 0 ÷ 0,500 | 0 ÷ 0,730 | |
| Fractions [%] | |||||
| 0,040 | Min. 90 | Min. 95 | 100 | - | - |
| 0,063 | - | Min. 85 | 100 | - | - |
| 0,300 | - | - | Min. 85 | 100 | - |
| 0,500 | - | - | - | Min. 85 | 100 |
Iron-silicon powder grinded - used, among others, in processing industry - in the process of zinc-lead are enrichmen as weight for production of heavy, slurry liquids. Typical sorts: MFeSi15 i MFeSi75. The varieties according to typical grain classes or according to the delivered specifications.
Iron-chromium powder grinded - used, among others, for chromium diffusion coating.
| Chemical composition | ||||||||
| Powder grade | Composition [%] | Weight loss in hydrogen [%] Max. | ||||||
| Fe | Cr Min. |
C Max. |
Si Max. |
P Max. |
S | H2O | ||
| MFeCr60 | rest | 60 | 9,0 | 1,5 | 0,05 | 0,05 | 0,1 | 1,0 |
| Grain composition | |||
| Powder modification | Grain classes [mm] | ||
| 0 ÷ 0,063 | 0 ÷ 0,200 | 0 ÷ 0,300 | |
| Fractions [%] | |||
| 0,063 | Min. 97 | 100 | - |
| 0,200 | - | Min. 97 | 100 |
Aluminium-Nickel powder grinded - used, among others, in chemical and pharmaceutical industry, and metallurgy.
| Chemical composition | |||||||||
| Powder grade | Composition [%] | ||||||||
| Basic components | Impurities Max. | ||||||||
| Al | Ni | Fe | Si | Cu | As | O2 | S | C | |
| MAINi | rest | 38 ÷ 44 | 0,50 | 0,35 | 0,05 | 0,005 | 0,05 | 0,02 | 0,10 |
| Grain composition | |||
| Powder modification | Grain classes [mm] | ||
| 0 ÷ 0,25 | 0 ÷ 0,40 | 0 ÷ 0,060 | |
| Fractions [%] | |||
| 0,25 | Min. 97 | 100 | - |
| 0,40 | - | Min. 97 | 100 |
Chromium powder grinded - used, among others, for production of sintered machine parts and construction elements, welding electrodes and for plasma flame plating.
| Chemical composition | ||||||||
| Powder grade | Composition [%] | |||||||
| Cr Min. |
Impurities Max. | |||||||
| C | P | S | Cu | Si | Al | Fe | ||
| MCr | 98,0 | 0,03 | 0,02 | 0,02 | 0,06 | 0,4 | 0,5 | 0,8 |
| Grain composition | |||||
| Powder modification | Grain classes [mm] | ||||
| 0 ÷ 0,063 | 0 ÷ 0,100 | 0 ÷ 0,200 | 0 ÷ 0,300 | 0 ÷ 0,400 | |
| Fractions [%] | |||||
| 0,063 | 90 | 100 | - | - | - |
| 0,100 | 50 | 90 | 100 | - | - |
| 0,200 | 30 | 60 | 90 | 100 | - |
| 0,300 | 10 | 20 | 50 | 90 | 100 |
Powder of different technical parameters may be produced on customer's request. Powders are packed into metal containers or paper bags with a bituminoid liner. Weight of powder in unit package is 100 or 50 kg. We also perform services of grinding cinders and melting loss as well as grinding the entrusted material.
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