Powder composites.
Powder composites are produced by the method of spheroidization in a special furnace in a controlled atmosphere. They are intended for detonation (class “M”), plasma spraying and surfacing (class “C” and “K”) wear-resistant coatings on parts of machines and mechanisms operating under fretting corrosion conditions, abrasive. wear at normal and elevated temperatures.
Of all the coating methods, detonation spraying has undeniable advantages. The pulsed nature of the thermal effect on the treated part during detonation spraying excludes grooving, leads, overheating of the part and structural changes in the material of the part, it is possible to apply coatings on substrates with a thickness of less than 1 mm.
Due to its discrete nature, detonation spraying is very economical. Due to the high density and adhesion, the coatings obtained by the detonation method are widely used in aviation, automobile and other fields of mechanical engineering.
Granulometric composition of composites by class:
- K 160 – 200 μm;
- C 63 – 160 μm;
- M is less than 63 μm.
The following fields of application are distinguished:
- aviation and space technology;
- machine and shipbuilding;
- petrochemical production equipment.
| Name of the material | C, % | Cr, % | Ni, % | Co, % | Si, % | Fe, % | B, % | Mo, % | W, % | Mn, % | Other | Hardness | Diameter, μm |
| KHN-15 | 15 | ||||||||||||
| KHN-30 | 30 | < 63 | |||||||||||
| VK-15 | 15 | 63-160 | |||||||||||
| VK-20 | 20 | 160-280 | |||||||||||
| VK-25 | 25 |