Iranian Journal of Materials Science and Engineering
Iran University of Science & Technology
Mon, Nov 25, 2024
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Volume 2, Issue 4 (Jul 2005)
IJMSE 2005, 2(4): 9-15 |
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NOUROOZI S., VARDELLE A.. EFFECT OF NOZZLE DIAMETER AND ATOMIZING AIR PRESSURE ON CHARACTERISTICS OF IN-FLIGHT PARTICLES IN WIRE ARC SPRAYING. IJMSE 2005; 2 (4) :9-15
URL: http://ijmse.iust.ac.ir/article-1-63-en.html
URL: http://ijmse.iust.ac.ir/article-1-63-en.html
Abstract: (36987 Views)
In wire arc spraying, the atomizing air pressure and applied nozzle system are important factors influencing particles characteristics and coating quality. The aim of this paper is to study how the characteristics of particles such as size, velocity and temperature are influenced by the operating conditions in wire arc spray. For that, three types of wires are tested: solid wire of stainless steel 316L, cored wires 97MXC and 98MXC. Arc spray gun is an Arc Jet 9000 manufactured by TAFA. For each condition, the particles temperature and particles velocity are measured using an imaging CCD camera, Spray Watch (Oseir Ltd). Particles size distributions are determined with a laser grain meter. The morphology and composition of particles were evaluated with SEM, EDX and X-Ray diffraction. Results induce important modifications in the particles size distributions and particles velocity. A small diameter nozzle and high atomizing air pressure resulted in a reduction in particles size distributions and an increase in particles velocity.
Keywords: ATOMIZING AIR PRESSURE, WIRE ARC SPRAYING, CORED WIRE, STAINLESS STEEL 316L, IN, FLIGHT PARTICLES
Type of Study: Research Paper |
Subject:
Ceramics
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