DEVELOPMENT OF THE SUPPLY PLASMATRON WORKING ON CONSTANT-PULSE VOLTAGE

Authors

  • V. N. Alehnovich Physical-Technical Institute of the National Academy of Sciences of Belarus, 10 Kuprevich St., 220141, Minsk, Belarus Автор
  • A. V. Alifanov Physical-Technical Institute of the National Academy of Sciences of Belarus, 10 Kuprevich St., 220141, Minsk, Belarus Автор
  • A. M. Miliukova Physical-Technical Institute of the National Academy of Sciences of Belarus, 10 Kuprevich St., 220141, Minsk, Belarus Автор
  • O. A. Tolkachova Physical-Technical Institute of the National Academy of Sciences of Belarus, 10 Kuprevich St., 220141, Minsk, Belarus Автор

Keywords:

plasmatron, constant-pulsed voltage; the article to be coated, the thermal stress

Abstract

A reliable-in-operation plasmatron and a powder feeder have been developed for carrying out plasma surfacing of wear-resistant materials using a constant-pulsed voltage to power the plasmatron.

A specific feature of the developed plasmotron design is that the feeder can supply the powder to the plasmatron either in a constant mode or in a pulsed mode in preset portions. The constant-pulse method of coating deposition reduces the thermal stress on the article to be coated, and in this case the diffusion rate of the deposited wear-resistant material increases, which allows surfacing of thin-walled parts without their melting.

Fig. 4. Ref.: 4 titles.

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Published

2019-06-01

Issue

Section

МАШИНОСТРОЕНИЕ И МАШИНОВЕДЕНИЕ