Ural Federal University named after the first President of Russia B. N. Eltsin (UrFU), Ekaterinburg, Russia.

A. M. Antimonov, Chief of the Department Technology of Mechanical Engineering, Professor, e-mail: u11446@mail.ru

N. B. Pushkareva, Physics Department, Associated Professor, e-mail: nbpush@mail.ru

The problem of production tinned brass tubes coated with a predetermined thickness is being solved. The process of forming a coating thickness comprises applying it from molten tin with subsequent deformation with the product. Dependence of the coating thickness on the speed of product movement the in a liquid metal environment, as well as the degree of product deformation during drawing, is determined theoretically. Experimental verification showed good convergence of theoretical results with experimental data. The practical result of solving the set task is the ability to control the process of metal coating thickness forming by the of product movement speed in the liquid metal environment and the degree of its deformation during drawing. The results are used in the organization of tinned brass pipes in-line production for car radiators. The scheme and design of the rotary production line for the tinning of these pipes is submitted. The main element of such design is a transport rotor for moving products in the stepping mode, positions numbers which allows etching synchronizing, tinning and cooling operations of pipes with the exhaust stroke. Products loading and unloading is made from rotor system one position, where pipes are manually fixed vertically. Hydraulic cylinders rod magnetic coupling with a clamping device for pipes allows, after removing pipe from the bath, to automatically disconnect the hydraulic cylinder rod from the rotor and then freely rotate rotor to the next position.

1. A. M. Antimonov, A. N. Bacherikov, N. S. Vaskov, Yu. V. Ryazantsev. The method of applying a metal coating on the surface of long products and a device for its implementation. Patent RF, No. 2245937. Published 10.02.2005.
2. Landau L. D., Livshits E. M. Theoretical Physics : Textbook. allowance: For universities. Vol.VI. Gidrodinamika. fifth ed. Moscow : FIZMATLIT, 2001. pp. 736.
3. Dodge D. W. Fluid Systems. Industrial and Engineering Chemistry. 1959. Vol. 51, No. 7. pp. 839–840.
4. Arkulis G. E. Joint plastic deformation of different metals. Moscow : Metallurgy, 1964. 272 p.
5. Antimonov A. M., Pushkareva N. B. Mastering the production of fuel pipes for diesel engines. High technologies. Business. Society 2018 (HTBS 2018): International scientific conference High Technologies Proceedings. Borovets, Bulgaria, 12-15.03.2018. Sofia, 2018. Year II, Iss. 1 (3). pp. 67–70.
6. Antimonov A. M., Pushkareva N. B. Fuel Pipes Coil Drawing Line Production for Diesel Engines. Materials Science Forum. 2019. Vol. 946, No. 3. pp. 739–743.
7. In-line production methods in serial engineering : in 3 hours. 4.1. Classification of production lines, terminology, design stages and forms of the main technological documentation : Reference book. Moscow : NII informatsii po mashinostroyeniyu, 1968. 198 p.
8. Preuss V. V. Technological rotary machines: yesterday, today, tomorrow. Moscow : Mechanical Engineering, 1986. 128 p.
9. Koshkin L. N. Rotary and rotary conveyor lines. Moscow : Mechanical Engineering, 1986. 320 p.
10. Ershkov S. V., Shamin R. V., Giniyatullin A. R. On a new type of nonstationary helical flows for incompressible 3D Navier-Stokes equations. Journal of King Saud University – Science. DOI: 10.1016/j.jksus.2018.07.006
11. Korobkov M., Pileckas K., Russo R. On the Flux Problem in the Theory of Steady Navier – Stokes Equations with Nonhomogeneous Boundary Condition. Archive for Rational Mechanics and Analysis. 2013. Vol. 207, Iss. 1. pp. 185–213.
12. Ershkov S. V., Shamin R. V. A Riccati-type solution of 3D Euler equations for incompressible flow. Journal of King Saud University – Science. DOI: 10.1016/j.jksus.2018.03.010
13. Ershkov S. V. On Existence of General Solution of the Navier-Stokes Equations for 3D Non-Stationary Incompressible Flow. International Journal of Fluid Mechanics Research. 2015. Vol. 42, Iss. 3. pp. 206–213.
14. Ershkov S. V. Nonstationary solutions of hydrodynamic equations with a constant Bernoulli function : PhD dissertation. Nizhniy Novgorod, 2018. 100 p.
15. Podryabinkin Ye. V. Modeling of Newtonian and Non-Newtonian Fluids in a Cylindrical Gap. : PhD dissertation. Tomsk, 2014. 133 p.
16. GOST 9.301–86. Unified system of corrosion and ageing protection. Metal and non-metal inorganic coatings. General requirements. Moscow, Standartinform Publ. Introdused 30.06.1987. 16 p. (In Russian)
17. Mikheev M. A., Mikheeva I. M. Basics of heat transfer. Moscow : Energy, 1973. 320 p.
18. Alchagirov B. B., Chochaeva A. M. Temperature dependence of the density of liquid tin. J. Teplofizika vysokikh temperatur. 2000. Vol. 38, Iss. 1. pp. 48–52.
19. A. M. Antimonov, A. N. Bacherikov, Yu. V. Ryazantsev, N. S. Vaskov. The method of obtaining products with a metallic coating. Patent RF, No. 2257969. Published 10.08.2005.
20. A. N. Bacherikov, Yu. V. Ryazantsev, N. S. Vaskov, A. M. Antimonov. Production line for metal coating on long products. Patent RF, No. 2271403. Published 10.03. 2006.