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KOIDZ-VD kits consist of samples of artificial defects (SAD) and samples of gaps (SG). Samples of artificial defects are made in the form of flat and curved plates and cylinders, on the working surfaces of which defects are made in the form of continuity violations like slits of various depths, opening widths and lengths. The working surfaces of flat SADs are two opposite surfaces on which longitudinal slits are cut by an electroerosion method The working surfaces of the SAD, reproducing a positive curved surface, are samples with a cylindrical surface. The working surface of the SAD reproducing negative curvature is the inner surface of the curved plate — the place of inflection. The KOIDZ-VD kit contains an SAD for determining the influence of various quantities. To determine the effect of the roughness of the working surfaces, the kit contains SADs with different roughness, on which defects of the same depth are made. To determine the effect of positive curvature and surface roughness, the kit contains cylindrical samples with different roughness of working surfaces on which defects of the same depth are made. To determine the simultaneous effect of negative curvature and surface roughness, the kit contains curved plates on which two defects of the same depth are cut, one of which is located on the flat, the other on the curved parts of the sample. To determine the effect of the chemical composition of the material of the controlled products, the kit contains samples of steel 10, steel 20 and steel 45. The same defects are made on each sample. To account for the influence of specific electrical conductivity, the kit contains samples from non-magnetic structural materials: aluminum alloy D16T and titanium alloy VT-23. The same defects are made on each sample. Gap samples are flat and curved plates of different thicknesses made of dielectric material. Technical specifications The range of nominal values of the depth of defects, mm: from 0.1 to 10. The limits of permissible error of the value of the depth of defects, mm: from ± 0.02 to ± 0.25. The range of nominal values of the width of the opening of defects, mm: from 0.03 to 0.15. The limits of the permissible error of the width of the opening of defects, mm: from ± 0.01 to ± 0.05. The range of nominal values of the length of defects, mm: from 6 to 100. The limits of permissible error of the value of the length of defects, mm: from ± 0.5 to ± 1. The range of nominal values of the thickness of the dielectric gap samples, mm: from 0.2 to 10. The limits of the permissible error of the thickness of the samples, mm: from ± 0.02 to ± 0.5. The range of nominal values of the radius of curvature of curved surfaces with defects, mm: - convex: from 13 to 510; - concave: 10.

Designation SAT-0.25/7.8 Installed capacity, kW 28 Temperature stability in steady-state mode, °C ± 5

Laboratory mine crucible melting furnace SSHOL-3/4-T is designed for melting solder of tin and other metals at temperatures up to 400 ° C. The heaters of the SSHOL furnace are located on the outside of the ceramic retort. Oven lid - removable

Designation SNO 10/17 Rated power Pmax, kW 8,2 Power supply voltage U, In 3 phases + N+PE 220/380 Maximum operating temperature T slave, oS 1700

Designation SSO-10.10/11 Power, kW 72 Diameter, mm 1000 Height, mm 1000

Devices of a new generation, automated stations of continuous radiation monitoring Zastava-1 are designed to organize continuous effective monitoring of the radiation situation and notification of radiation hazards. The stations have up to three independent measurement channels, which allows monitoring simultaneously in several zones. The stations support remote monitoring - they have a connection to a local computer network, Internet access.

NanoEducator II, despite its compactness and ease of operation, supports all basic techniques of atomic force and scanning tunneling microscopy, so it can be used for any routine AFM and STM measurements and experiments in scientific research. Here are the results of some experiments in various scientific applications: Study of atomic structures Study of metallic nanostructures Study of magnetic structures Study of polymer objects Study of biological objects Study of carbon nanomaterials

The principle of operation of the VD-20NF eddy current flaw detector The principle of operation of the VD-20NF flaw detector is based on the generation of eddy currents on the surface of the controlled part and subsequent analysis of the signal at the output of the converter, which correlates with the characteristics of the active secondary field. The device consists of two main blocks: electronic one and electromechanical one, in which an eddy current converter of transformer type is installed. The controlled products (bearing rollers) enter through the input tray into the electromechanical unit of the flaw detector, where they move sequentially and fall under the pressure rollers of the overhead converter holder. The clamping mechanism is adjusted to each size of the rollers, so as to ensure tight contact with the curved surface and fix the tip of the transducer at the required distance from it. The detection of defects occurs due to the imbalance of the converter when it is located above the surface of the controlled product, caused by the interaction of the primary electromagnetic field generated by the converter with the secondary electromagnetic field of eddy currents induced in the controlled product by the primary field. When cracks are detected, the electronic unit of the flaw detector gives sound and light warning signals, and also triggers the electromagnet of the sorter, which directs the controlled roller into the tray for defective products. In the absence of defects, the controlled roller is directed towards the output tray of the flaw detector. Design features and advantages The VD-20NF eddy current flaw detector is equipped with removable input and output trays, power-on switches and a drive for feeding controlled products to the converter, as well as handrails for convenient transportation of the unit. The mechanisms of the electromechanical unit are protected by a frame made of steel plates. The electronic unit of the flaw detector is portable and can be installed both on the top panel of the electromechanical unit and on the surface of the desktop. Controls and indications of defect detection are located on the front panel of the electronic unit. The delivery package also includes a power adapter for the electronic unit and a tuning sample. The advantages of the VD-20NF flaw detector include: high reliability (the service life of the flaw detector is more than 10 years); it is easy to set up and operate; it has several types of defect detection alarms; the high probability of detecting defective products (at least 99.9%); low number of false positives (less than 5%). Scope of application According to the current standards of safety and product quality control during repair work in locomotive depots and repair plants, bearing rollers that have passed visual inspection and are recognized as suitable for further operation according to the criteria of geometry and condition of the working surface are subject to mandatory additional control using eddy current flaw detection to detect fatigue cracks invisible during visual inspection on the rolling surface of the rollers. The VD-20NF eddy current flaw detector allows for quality control and automatic disassembly of bearing rollers of various shapes and sizes both in laboratory and factory conditions in full compliance with the requirements of the regulatory documents of Rosstandart and the methods of performing control measurements used in JSC "Russian Railways".

Measuring range of thickness of protective coatings, mm: from 0.2 to 10 Digital display of measurement results: yes Power supply: from a PP3 type battery with a voltage of 9V Power consumption, MW: 100 Operating mode setting time, min: 1 Time of one measurement, sec: 3 Memory capacity, number of thickness values: 2000 Overall dimensions, mm: - electronic unit (width-depth length) 120x60x25 - measuring transducer (diameter height) 33x23 - connecting cable (length) 1500±300 Weight, g, no more: - electronic unit (without battery power) 80 - measuring converter 40 The kit includes: - Electronic unit, - Measuring converter - Plate made of non-magnetic material for setting the upper limit of measurements - Battery type PP3 - CD-ROM with the program - Prism - Cover - Spring - Case - Passport - Operation Manual

The principle of operation of the device The principle of operation of the irradiator is based on the conversion of DC electrical energy into a normalized flow of ultraviolet radiation in the optical wavelength range of 350 ... 400 nm with a maximum at a wavelength of 365 nm. Design features and advantages The irradiator is a lantern consisting of an ultraviolet diode placed behind the focusing system, connected to a DC voltage converter, which supports the optimal mode of starting and functioning of the LED. Structurally, the irradiator is made in a lightweight duralumin housing, in the front of which there is a focusing system with an ultraviolet LED. The housing is equipped with a carrying strap. There is also a power on/off button on the case. As the power source of the irradiator, a lithium-ion battery of type 18650 with a nominal voltage of 3.7 V or 3 AA batteries with a voltage of 1.5V. are used. An ultraviolet LED is used as a source of ultraviolet (UV) radiation. The use of an LED distinguishes the UFO-3-20F irradiator from similar devices using UV lamps, it provides: high reliability and durability; variable diameter of the UV radiation zone; low current consumption and long continuous operation time; instant readiness for the first and subsequent turn-on; low weight, compact; high radiation intensity; stability of the characteristics of the irradiator, both during operation and throughout its entire life; wide operating temperature range. Scope of application The UV-3-20F irradiator (lantern) is used for ultraviolet irradiation of the surface of various parts, assemblies and mechanisms during flaw detection by fluorescent methods of non-destructive testing at machine-building enterprises, chemical and petrochemical industries, railway, automobile, water and aviation transport, during the laying and operation of pipelines, in construction, agriculture. The device can be used to check the quality of welds and internal surfaces of closed tanks. The luminescent method makes it possible to ensure high brightness and contrast of the indicator pattern, and, consequently, high sensitivity, especially on parts and products with a dark surface. Technical specifications The range of radiated wavelengths, nm 350...400 Ultraviolet irradiation at a distance of 300 mm, W/m2, not less than 20000 with a diameter of the irradiated area of 100 mm not less than 2000 Power supply from a lithium-ion battery type 18650 voltage of 3.7 V, or 3 AA batteries with a voltage of 1.5V Continuous operation time without recharging the battery, h, at least 4 Maximum irradiance at the wavelength, 365 nm Dimensions (diameter x length) 40 x 150 Weight (without batteries), kg, not more than 0.2