Spraying process for 3PE fully powdered coating on steel pipe
A chemical coating and all-powder technology, which is applied in the spraying process of steel pipe 3PE full-powder coating, can solve problems such as coating delamination failure, coating voids, and coating thinning, so as to save power resources and overall The effect of good performance and simple process
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[0017] The present invention is described in further detail below in conjunction with accompanying drawing:
[0018] see figure 1 , a spraying process of steel pipe 3PE full powder coating, the equipment used in the spraying process includes steel pipe transmission roller, intermediate frequency heating device, epoxy powder electrostatic spraying device, adhesive powder electrostatic spraying device, polyethylene powder electrostatic spraying device and water cooling device, the cleaned steel pipe is spirally transported forward under the drive of the steel pipe transmission roller, and then passes through the intermediate frequency heating device, epoxy powder electrostatic spraying device, adhesive powder electrostatic spraying device, polyethylene powder electrostatic spraying device and water cooling unit.
[0019] The specific spraying process is:
[0020] (1) The steel pipe transmission roller drives the steel pipe 1 to spiral forward at a speed of 1-4m / min, and the st...
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