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Quality: How we do our antennas |
- The key feature is that we use durable and qualitative materials.
- All elements and booms are made of high-tensile aluminum alloy "D16T". (Comparison table for durability of some aluminium alloys)
- Elements and booms are made of tubes with adjacent diameters, which provides sliding tubes fit, slender profile (therefore, minor wind load), small weight and above all - very high structural strength.
- Most threaded connections are made of stainless steel. Some of hardware parts are galvanized or cadmium-plated.
- All tubes and aluminum alloy details mechanically polished to get a dull luster.
- Insulating materials used in antennas are teflon, fiber-glass plastic, polyamide, kevlar.
- With a special stamp and a high pressure press, the plates made from Al-Mg-Mn alloys (AMG6) are formed into original "Element-to-Boom" mounts. Similarly we make elements supporting brackets.
- For boom assemblage we developed special master plate. It makes all the element mounts to be positioned in a straight line on a boom, that makes it possible to locate the elements strictly parallel to each other. Thereby we ensure workability and an assembling accuracy.
- We perform drilling holes for rivets with special drill jigs that guarantee identity of all the dimensions.
- For antennas construction we are also use other purpose-built equipment that makes us possible to achieve high quality of our antennas.
Quotation from a reference book "TUBES OF ALUMINIUM AND ALUMINIUM ALLOYS" GOST 18482-79 | Alloy | Wall thickness, mm | Ultimate strength, kgf/mm2, not less
| Yield point, kgf/mm2, not less | Percent elongation, not less | | АМг6 | 2,5 to 40,0 | 32 | 15 | 15 | | АД31 | 2,0 to 40,0 | 18,5 | 12 | 10 | | АД35 | 2,0 to 40,0 | 27,5 | 20,5 | 10 | | Д1 | 3,0 to 4,0 | 34 | 22 | 10 | | Д16 | 3,0 to 4,0 | 38 | 26 | 10 | And below you can see quotation from Quality Certificate № 44/30 by Samara Aluminium Factory, given for tubes we use in our antennas: | | Ultimate strength, kgf/mm2 | Yield point, kgf/mm2 | Percent elongation | D16T
192096-83 | Hardened and naturally aged
| Tube diameters 10 to 60 mm, wall thickness 1,0 to 2,0 mm | min | max | min | max | % | | 47,5 | 56,2 | 31,5 | 41,0 | 14-19,3 |
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