Production technology of major types of produced articles
JSC "Rogachev plant "Diaproektor” has productive potential, concentrated in the following dedicated productions:
- Foundry
- Machining processing
- Optical
- Polymer materials processing
- Stamping and blank production
- Galvanic and lacquer coating
- Welding
- Assembling
- Tool production
There are specialized areas for air-tightness tests of casts and their vacuum impregnation in prime coating, nonstandard equipment, thermal treatment etc.
The following methods are applied in foundry when producing casts:
- Pressure die casting with cast volume of metal from 0,020 up to 14 kg.
- Gravity die casting.
Machining processing is equipped with versatile machine tools, specialized machine tools and single-purpose machine tools, including turning lathes, milling machines with NC and machining centers, which allow to perform complex machining of details under conditions of small-scale production, as well as in large-scale manufacture. Materials of machined details - structural steel, stainless steel, creep-resisting steel, nonferrous alloys, including titanium alloys.
The following types of optical details, made of glass, are produced in optical productions:
- Lenses with spherical surfaces, aspherical surfaces and flat surfaces
- Stuck together optical details
- Plates and wedges
- Prisms
- Angular and linear grids and scales
Optical details are coated with special coatings such as antireflection coating (including achromatic coating), mirror coatings, electrically conductive coatings, beam-splitting coatings, interference filtering coatings.
Polymer materials processing is implemented by means of pressure die casting of weight up to 1,2 kg and pressing. Both, thermoplastic materials of various groups and grades and thermosetting materials (karbolits, glass-fibre reinforced plastics). Area of rubber compounds processing of different grades is available.
Stamping and blank production has possibility to produce pressed parts made of sheet material with thickness from 0,06 mm up to 4 mm with performing accuracy of up to 12 workmanship.
Galvanic and lacquer coating productions make it possible to deposit various protective coatings, protective decorative coating and function coverage on metal and nonmetallic details:
- Zinc plating
- Nickel plating
- Silver plating
- Electropolishing of stainless steel
- Anodic treatment of aluminum alloys
- Chemical oxidation of steel and aluminum alloys
- Lacquer coatings
- Polymeric powder enameling
Welding production is provided with equipment for the following types of welding:
- Argon-arc welding
- Microplasmous welding
- Electron-beam welding
- Laser welding
- Ultrasonic welding
- Contact welding
- Electric-arc welding
Fitter’s works are carried out on conveyors and individually by force of assembling shops specialized according to types and series of manufactured products. Special spaces with microclimate and content of 1000 dust particles with size of 1 micrometers in one liter of air are available for carrying out works that demand provision of high purity. Equipment, facilities of assembling and qualification of executors enable to provide:
- Setting linear dimensions, parallelism, perpendicularity with precision of up to 0,01 - 0,001 mm
- Adjustment of optical devices and check of optical characteristics and optical parameters
- Alignment and check of analogue and digital electronic functional assemblies and device units
- Airtightness of units and devices under pressure of 300 atm
Tool production is staffed with specialists of high qualification and modern equipment, which enables to produce arming of any complexity and product mix: cast moulds under pressure, press molds for processing plastic and rubber, stamps, machine tool accessories and control accessories and tools.
Central test station functions on the enterprise which enables to carry out tests of finished products for resistance to external factors exposure:
- Temperature from -60 °C up to 120 °C
- Relative humidity up to 98±2 at temperature from 20 up to 50 °C
- Residual (reduced) pressure up to 10 millimeters of mercury
- Vibration in the range of 5 - 12500 Hz with acceleration 10 g - 350 g
- Shock loads 30 g - 500 g
Complex of industrial laboratories is available: spectral, mechanic and metallographic, optical, chemical, galvanic and lacquer coatings, industrial sanitation, linear measurements and angle measurements.
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