THICKNESS CONTROLLING OF GREEN TIRE PAINTING IN TIRE PRODUCTION
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Abstract
Green tire painting on the tire chafer is crucial for shaping the tires before the curing. The spraying of chemicals with uneven thickness causes defects as a result. Consequently, the research aimed to determine the control parameters for green inside painting (GIP), which involve the spray pressure, the angle of the spray gun, and the spray gun distance. The results of the experiment demonstrated that in the case of producing 16-inch nylon chafer tires, the spraying pressure should be set to 0.05 MPa, the spray gun angles at the upper, middle, and lower levels should be set to 150º, 30º, and 180º, respectively, and the spray gun distance should be set to pattern A. For 17-inch gum chafer tires, the recommended settings were a spray pressure of 0.03 MPa, an upper-level spray gun angle, a mid-level spray gun angle, and a lower-level spray gun angle of 120º, 30º, and 180º, respectively, as well as the spray gun distance setting pattern B. Finally, for 18-inch gum chafer tires, the recommended settings should be a spray pressure of 0.03 MPa, an upper-level spray gun angle, a mid-level spray gun angle, and a lower-level spray gun angle of 150º, 0º, and 180º, respectively, and the spray gun distance setting pattern B. After implementing the new green tire painting control, the defect decreased from 0.052% to 0.025%.
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
The published articles are copyright of the Engineering Journal of Research and Development, The Engineering Institute of Thailand Under H.M. The King's Patronage (EIT).
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