Relation Between Arc Spraying Condition and Adhesive Strength of Sprayed Coating : Study on Arc Spraying (Report 1)

概要

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The relationship between arc spraying conditions and the adhesive strength of sprayed coating is investigated. The suitable condition of arc spraying is obtained through arc stability test, measurement of the adhesive strength and observation of fased particle with a high speed camera. Main results of the study are summarized as follows: (1) Three different areas on arc stability of spraying are recognized dependent on negative and positive wire feed speed that is stable, self-regulation and unstable arc areas. (2) The maximum adhesive strength of sprayed coating is obtained under the spraying condition of boundary between the stable and the self-regulation arc areas. (3) The adhesive strength increases with an increasing size of fused particle in stainless steel arc spraying. The fused particles are spheres of various diameters. The fused particles are cooled within 1/8000 second after bombardment on the substrate.
社団法人溶接学会の論文
1984-10-01