1.The vulcanization effect of powder coating with automatic coators machine is not good ​2.The hardness of the powder coating workpiece is unqualified after curing The the main reason for uneven coating thickness of workpiece is of lance position or direction is not correct, affected by the Faraday effect 4.The workpieces’ color will be different after curing coating, the reason causing this problem is probably the baking time is too long, can shorten the curing time,