Improvement of automatic spraying technology for inner insulation layer of cabin
[Introduction]The automatic spraying process and coating thickness uniformity of TR-37 two-component lightweight silicone thermal insulation paint need to be improved.[Method]The effects of paint viscosity,spray interval,and spray fan width on paint spraying status and coating thickness were discussed.The uniformity of coating thickness by automatic spraying was verified with simulated cabin parts.The countermeasures for some defects such as rough coating surface,over-thick coating locally,and spray shadow at edges were analyzed.[Result]Good spraying and coating quality can be guaranteed under the following conditions:paint viscosity 26-28 seconds,spray interval 30 minutes,and spray fan width 100-150 mm.[Conclusion]This study provides a reference for continuously improving the spraying efficiency of inner insulation layer and the appearance quality of coating.
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