The newest technologies and equipment for applying chrome coatings on any products and details
Our technology and equipment for applying chrome-coating allows:
• Fully or partially automatic process of chromium;
• Use environmentally safe equipment by providing a closed water rotation;
• Chrome-plating details with an internal diameter D = 5,4 - 152 mm;
• Chrome-plating details of up to 21000 mm;
• Chrome-plating details of the partial immersion method, which enables to reduce the electrical power in ten times as well as the amount of chromium electrolyte;
• Produce installations for chromium pipes up to D = 3000 mm.
The technology, proposed to Your kind attention used in equipment for chromium equipment at “Bureyskaya” and “Volgskaya” HPP-s, for rolling rolls in JSC "Severstal" and the ball cranes DU 1400, belonged to "Volgogradneftemash" plant.
Speed chrome coatings, including cover chromium-diamond, working on (internal) surface of pipes to improve the durability and protection against corrosion. Plating produced in the current electrolyte along with the use of increased density of floor.
Specifications of speed chromium installation for sucker rod pumps
We are also providing the corrosion and wear-resistant coatings from self-fluxing brazing alloy on the nickel basis to pistons of sucker rod pumps also . Coatings marked by plasma spraying, followed by melting gas burner. The firmness of the cover is more than 60HRC.
Plating occurs when the rotation details with simultaneous mechanical impact on it. In some cases, a pumping of the electrolyte goes through inter-electrode gap. The main difference from other chromium technologies is in the use of mechanical impact on the detail in the process of chromium.
Specifications cathode-mechanical chromium of face engines rotaries
Plating occurs with the partial immersion of the details in the electrolyte and its rotation. In some cases the chromium electrolyte is pumping through inter-electrode gap with a given speed.
The technology of flat electrochemical processing of face engines stators in current electrolyte used in the processing of the inner surface at channels of pipe blanks for removal envelopes at the channel diameter, forming grooves of multi-pass screw surface, removing of cold- worked layer.
Options of the technology of flat electrochemical processing of face engines stators in current electrolyte
The advantages in compare with traditional ways:
- lack of seams during processing;
- high productivity process;
- environmental security (apply aqueous solutions of neutral salts);
- lack of productivity dependence in consequence of micro-hardness at treated surfaces;
- lack of wear at manufacturing tool.
• Fully or partially automatic process of chromium;
• Use environmentally safe equipment by providing a closed water rotation;
• Chrome-plating details with an internal diameter D = 5,4 - 152 mm;
• Chrome-plating details of up to 21000 mm;
• Chrome-plating details of the partial immersion method, which enables to reduce the electrical power in ten times as well as the amount of chromium electrolyte;
• Produce installations for chromium pipes up to D = 3000 mm.
Major technological characteristics of chrome-platingss:
| Parameter | Value |
| Increased physical and mechanical properties of cover compared to the traditional chrome coating | improving the durability in 6 - 10 times |
| Chrome coating firmness , HV | 1000 – 1200 |
| Thickness of cover, without intermediate processing, um | Up to 500 |
| Meanwhile, in the process of chromium formed to surface roughness Ra = 0,04, with reference to the basic roughness of Ra = 1,28 | |
| Accelerated chromium deposition, um / min | Up to 2,3 |
| Uniform deposition of chromium,% | ±5 |
The technology, proposed to Your kind attention used in equipment for chromium equipment at “Bureyskaya” and “Volgskaya” HPP-s, for rolling rolls in JSC "Severstal" and the ball cranes DU 1400, belonged to "Volgogradneftemash" plant.
ACCELERATED CHROME-PLATING OF CILLINDERS FOR SUKER ROD PUMPS
Speed chrome coatings, including cover chromium-diamond, working on (internal) surface of pipes to improve the durability and protection against corrosion. Plating produced in the current electrolyte along with the use of increased density of floor.
Specifications of speed chromium installation for sucker rod pumps
| Parameter | Value |
| Inner diameter of the details, mm | 5,4 –200 |
| Length of details, mm | Up to 6400 |
| Thickness of coatings, um | Up to 300 |
| Uniform deposition of chromium,% | 10 |
| Productivity of a single-station installation, pcs / shift | 4…5 |
We are also providing the corrosion and wear-resistant coatings from self-fluxing brazing alloy on the nickel basis to pistons of sucker rod pumps also . Coatings marked by plasma spraying, followed by melting gas burner. The firmness of the cover is more than 60HRC.
CATHODDE-MECHANICAL CHROME-PLATING OF FACE ENGINES ROTARIES
Plating occurs when the rotation details with simultaneous mechanical impact on it. In some cases, a pumping of the electrolyte goes through inter-electrode gap. The main difference from other chromium technologies is in the use of mechanical impact on the detail in the process of chromium.
Specifications cathode-mechanical chromium of face engines rotaries
| Parameter | Value |
| Accelerated chromium deposition, um / min | Up to 3 |
| Uneven deposition of chrome on the perimeter,%; | No more than 5 |
| Ratio of thickness on the screw surface profile | 1/3 |
| Getting dimension chrome coating without further machining | Up to 400 microns |
SOLID, FLAT CHROME-PLATING WITH PARTIAL IMMERSION AND ROTATION OF DETAILS, OUTSIDE SURFACES OF BALL VALVES BLIND PLUGS WITH DIAMETER UP TO 2200 MM.
Plating occurs with the partial immersion of the details in the electrolyte and its rotation. In some cases the chromium electrolyte is pumping through inter-electrode gap with a given speed.
TECHNOLOGY OF FLAT ELEKTROCHEMICAL PROCESSING OF FACE ENGINES STATORS IN CURRENT ELECTROLYTE (ЕХО)
The technology of flat electrochemical processing of face engines stators in current electrolyte used in the processing of the inner surface at channels of pipe blanks for removal envelopes at the channel diameter, forming grooves of multi-pass screw surface, removing of cold- worked layer.
Options of the technology of flat electrochemical processing of face engines stators in current electrolyte
| Parameter | Value |
| Envelope under processing, mm | 0,2…25,0 |
| Cleanliness of blank surface, Ra, um | 2,5…2,0 |
| Cleanliness surface after processing Ra, um | 1,25…0,63 |
The advantages in compare with traditional ways:
- lack of seams during processing;
- high productivity process;
- environmental security (apply aqueous solutions of neutral salts);
- lack of productivity dependence in consequence of micro-hardness at treated surfaces;
- lack of wear at manufacturing tool.
