1, pull line: industrial plastic pallet molding production of some shouldn't have some line projections (not on the mold), the need to correct the mold (reduce the height and add park slip) and add rated pressure mold (let's call it on the mold) to solve.When the cable is too large, it is regarded as a defective product, can not be used in advanced plastic pallet packaging, but in the parts turnover pallet category, only the cable is arranged neatly, do not affect the use of function, should be regarded as qualified products.Pull wire is also known as: pull tendon.
2, scratch: plastic pallet products, especially tongming bubble shell with scratch marks, if the trace is too long, too big, bubble shell became inferior, can not be used in advanced packaging.
3, crystal point: in the production process of plastic pallet sheet, due to the fine dust in the air, fell on the heated plastic data, a kind of transparent defects, especially in the production process of tongming plastic pallet sheet, this defect is too large, too much, as inferior.
4, bubble: in the production process of plastic pallet sheet, due to the heating of the plastic material contains air, using the output products sheet with bubbles, especially in the production process of tongming plastic pallet sheet, this bubble is too large, too much, as inferior.
5, water ripple: in the production process of plastic pallet sheet, due to the data and processing technology is not the same, use the output of the product sheet appearance has water ripple, especially in the production process of tongming plastic pallet sheet, this water ripple is too large, too much, as inferior.Usually, the thicker the sheet, the more significant the water ripple.Qualified PET data rarely have water ripples, but most PVCS have water ripples.