Domain structure and magnetic losses in laminated magnetic circuits upon laser treatment

Abstract

Methods of optimizing the magnetic domain structure and functional characteristics of electrical-sheet anisotropic steel based on the Fe-Si alloy and the laminated magnetic circuits of transformers have been developed. The use of an efficient complex based on the local laser treatment and application of magnetically active electrically insulating coatings provided a significant reduction in the magnetic losses in the sheets of the steel (by 18–22%) and in the magnetic circuits of transformers (by 9–14%).

This is a preview of subscription content, log in to check access.

References

  1. 1.

    K. I. Bagaev, “Estimation of the induction effect on the losses in the magnetic circuit of a transformer in the case of different systems of laminating of the magnetic circuit,” Polzunov. Vestn., No. 4-2, 4–11 (2013).

    Google Scholar 

  2. 2.

    Yu. N. Dragoshanskii and B. K. Sokolov, “Control of magnetic domain structure as a means for the optimization of properties of anisotropic electrotechnical steels,” Izv. Ross. Akad. Nauk SSSR, Ser. Fiz. 53, 610–613 (1989).

    Google Scholar 

  3. 3.

    Russian State Standard GOST 21427.1-83: Electrotechnical Cold-Rolled Anisotropic Thin-Plate Steel (1983).

  4. 4.

    Yu. N. Dragoshanskii and V. I. Pudov, “Influence of laser processing and magnetically active inorganic coatings on the dynamic magnetic properties of soft-magnetic materials,” Inorg. Mater. 49, 668–675 (2013).

    Article  Google Scholar 

  5. 5.

    Yu. N. Dragoshanskii, V. I. Pudov, and V. V. Gubernatorov, “Combined thermomagnetic and laser treatments of anisotropic electrical materials,” Phys. Met. Metallogr., 111, 464–470 (2011).

    Article  Google Scholar 

  6. 6.

    V. I. Pudov and Yu. N. Dragoshanskii, “A way for improving magnetic properties of the anisotropic steel by laser treatment,” RF Patent 2501866, Byull. Izobret., No. 35 (2013).

    Google Scholar 

  7. 7.

    T. A. Khanzhina, V. I. Bamburov, and Yu. N. Dragoshanskii, “Solution for the application of electrically insulating coatings on steel and the method of its preparation,” Inventor’s certificate SSSR, No. 1608243, Bull. Izobret., No. 43 (1990).

    Google Scholar 

  8. 8.

    L. S. Karenina, Yu. N. Dragoshanskii, R. B. Puzhevich, and G. S. Korzunin, “Effect of an electrically insulating coatings on the efficiency of laser treatment of grain-oriented electrical steel,” Phys. Met. Metallogr., 112, 231–236 (2011).

    Article  Google Scholar 

  9. 9.

    Yu. N. Dragoshanskii, B. K. Sokolov, V. V. Gubernatorov, V. A. Alekseev, G. S. Bykovskii, B. P. Yatsenko, S. V. Smirnov, and T. A. Khanzhina, “Effect of local laser treatment on core loss in amorphous electrical alloys,” Phys. Met. Metallogr. 75, 44–48 (1993).

    Google Scholar 

  10. 10.

    B. K. Sokolov and Yu. N. Dragoshanskii, “Structural barriers and reduction of magnetic losses in anisotropic electrical steels,” Fiz. Met. Metalloved., No. 1, 92–102 (1991).

    Google Scholar 

  11. 11.

    V. I. Pudov and Yu. N. Dragoshanskii, “Method of treatment of laminated magnetic circuit of a shell-type transformer,” Inventir’s application No. 2014120595 (2014).

    Google Scholar 

  12. 12.

    Yu. N. Dragoshanskii and L. M. Sheiko, “Effect of plane stresses on the domain structure and magnetic properties of silicon iron,” Izv. Ross. Akad. Nauk SSSR, Ser. Fiz. 49, 1568–1572 (1985).

    Google Scholar 

  13. 13.

    Yu. N. Starodubtsev, E. L. Lykov, and V. V. Druzhinin, “Change of magnetic losses in transformer steel under the influence of inhomogeneous pressure,” Fiz. Met. Metalloved. 48, 41–46 (1979).

    Google Scholar 

  14. 14.

    A. A. Redikul’tsev, G. S. Korzunin, M. L. Lobanov, G. M. Rusakov, and L. V. Lobanova, “Effect of annealing on magnetostrictive characteristics of a grain-oriented electrical steel with ordinary and refined domain structure,” Phys. Met. Metallogr., 115, 650–654 (2014).

    Article  Google Scholar 

  15. 15.

    Yu. N. Dragoshanskii and V. I. Pudov, “Physical foundations of improving electromagnetic properties of magnetically soft materials,” Proc. 9th Int. Sci.-Tech. Conf. “Contemporary Methods and Technologies of Production and Treatment of Materials” (Fiz. Tekhn. Inst., Nat. Akad. Nauk Belarus., Minsk, 2014), pp. 284–290.

    Google Scholar 

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to V. I. Pudov.

Additional information

Original Russian Text © V.I. Pudov, Yu.N. Dragoshanskii, 2015, published in Fizika Metallov i Metallovedenie, 2015, Vol. 116, No. 6, pp. 571–576.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Pudov, V.I., Dragoshanskii, Y.N. Domain structure and magnetic losses in laminated magnetic circuits upon laser treatment. Phys. Metals Metallogr. 116, 538–543 (2015). https://doi.org/10.1134/S0031918X15060083

Download citation

Keywords

  • laminated magnetic circuit
  • electrical-sheet steel
  • magnetic domains
  • magnetic losses
  • laser treatment
  • local pressure