Tekhprom LLC works in the market of rendering services in the field of restoration repair of industrial equipment (imported and Russian-made) and in the manufacture of large-sized parts and assemblies for industrial equipment. The company specializes in the development and development of new modern methods for renovating products and increasing their service life. Unique welding and surfacing technologies, special metal-cutting equipment and experienced staff of engineers and workers allow us to solve the complex tasks set by the customer, both in terms of repair and in the manufacture of new products, to apply corrosion-resistant, electrical insulating, heat-protective, wear-resistant coatings by gas thermal methods spraying and surfacing. To date, we have mastered the following types of work: - thermal spraying; - plasma surfacing; - welding in a protective atmosphere of gases; - welding under a flux layer; - electrospark alloying and surfacing; - milling, turning, drilling, grinding work.
Details | Problem | Decision |
Augers | Violation of the geometry of the working surface, wear | Method: plasma-powder surfacing of wear-resistant alloys. Coating: iron-base alloys, various nickel and cobalt mixtures Result: 3 times longer life compared to the new uncoated part |
Babbit Plain Bearings | Violation of the geometric dimensions and shape of the babbitt layer, the presence of scratches and burrs, the delamination of the layer of babbitt and its chipping | Method: gas flame wire spraying Coating: B-83, B-88, Sprababbit Result: an average increase in service life by a factor of 2 and the absence of cavities arising from traditional casting |
Hydraulic cylinder rod | Violation of the geometry of the working surface, wear | Method: high speed spraying Coating: carbide tungsten and chromium carbide coatings Result: high erosion resistance, strength and hardness. 3-fold increase in resource compared to galvanic chromium plating. |
Calender shafts | Deterioration, destruction of galvanic chrome | Method: high speed spraying Coating: wear-resistant coating with polishing up to grade 14 Result: resource saving, import substitution, galvanic chromium replacement, hardening |
Coronation Shafts | Destruction of the electrical insulation coating | Method: plasma spraying, high speed spraying Coating: electrical insulating, wear-resistant Result: resource saving, import substitution |
ICE valves | Wear, high temperature corrosion | Method: plasma surfacing Coating: anti-friction Result: resource saving, import substitution |
Downhole rotor | Destruction of the coating on the working surface | Method: high speed spraying Coating: Wear Resistant Result: resource-saving, increasing the service life from 100 to 600 hours, compared with galvanic chrome |
Shutoff valves (gates, seats, ball valves) | Damage to sealing surfaces due to intense erosion corrosion | Method: high speed spraying, plasma surfacing Coating: anti-seize anti-seize wear-resistant carbide coatings Result: hardening, increase in resource up to 3 times in comparison with a new uncoated part |
Submersible pumps and electric motors | Corrosion | Method: high speed spraying Coating: anti-corrosion coating Result: ESP protection against corrosion for at least a year |
Blades of gas turbine engines, combustion chambers, burners | Geometry violation, wear | Method: plasma spraying, high speed spraying Coating: wear-resistant corrosion-resistant coating, restoration Result: renovation |
Impellers of the central nervous system, hydraulic turbines | Wear and cavitation of impellers, guide vanes, discharge disks, centrifugal pump housings and pumping stations | Method: high speed spraying, plasma surfacing Coating: carbide coatings of tungsten carbide and chromium, alloy Co Result: increased energy efficiency of the pump by reducing reverse flows, uniform and very slow wear of surfaces or its absence |
Plungers | Corrosive, mechanical and erosive wear | Method: high speed spraying, surfacing Coating: wear-resistant corrosion-resistant coating Result: longer life compared to plating |
Steam turbine blades | Erosion wear | Method: high speed spraying, plasma surfacing Coating: carbide wear-resistant coating, stellite layer Result: restoration, hardening, resource saving, replacement of stellite plates |
CCM Rollers | Abrasive wear, high temperature corrosion | Method: high speed spraying Coating: wear-resistant, anti-friction Result: longer life compared to plating |
Heat exchangers, superheater pipes | Corrosion wear, erosion | Method: metallization Coating: metal tread coatings aluminum or zinc Result: corrosion protection for 20 years |
Production of coated parts | ||
Plunger of high pressure pumps, rods, rollers, bushings (including complex shapes) | Wear surface The use of special steels | Solution: manufacture of a new part with hard-wearing carbide-based coating The result: reduced operating costs. 3-time increase in the overhaul cycle. |
