Lapteva G. Improving the technology of plasma coatings using current- carrying wires by optimizing the fractional composition and spreading metal particles

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0418U002142

Applicant for

Specialization

  • 05.03.06 - 3варювання та споріднені процеси і технології

19-02-2018

Specialized Academic Board

Д 26.002.15

National technical university of Ukraine “Igor Sikorsky Kyiv polytechnic institute”

Essay

Studied adhesion and fracture sprayed layer of foundation. Measured temperature and particle structure sputtered materials in the form of current-carrying wires and powder considering the simultaneous influence of plasma flow. Measured value pressure plasma jets and its influence on the formation of the coating. The nature of the spreading of drops of liquid alloy depending on the substrate surface. The graphic dependence of the influence of shot blasting time on the morphology of the treated surface and the strength of the adhesion of the plasma coating to the substrate are established. The dependence of the optimal ratio of the droplet size and the micro relief is constructed, which ensures the greatest strength of the coating applied by the current-carrying wire. The dependence of initial resistance contact connections on the thickness and extent of surface treatment sprayed layer. Adjusted existing technology and equipment to improve deposition efficiency coatings obtained using current-carrying wire.

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