Why does Chengdu PVC edge banding have poor plasticization? What is the reason? Shanghai Angmi New Materials Co., Ltd. will answer you.
Reasons for poor plasticization of PVC edge banding
(1) The temperature control is too low or the control is inappropriate.
(2) There are resin particles that are difficult to plasticize in the plastic.
(3) Improper operation method, the screw and traction speed are too fast, and the plastic is not completely plasticized.
(4) The plastic is not mixed evenly during granulation or there are quality problems with the plastic itself.
Phenomenon of poor plasticization of PVC edge banding
(1) There is a toad-skin phenomenon on the surface of the plastic layer.
(2) The temperature control is low, the instrument pointer reflects a low temperature, and the actual measured temperature is also low.
(3) The plastic surface is black, and there are tiny cracks or small particles that are not plasticized well.
(4) The plastic glue is not well seamed, and there is an obvious mark.
Methods to eliminate poor plasticization of PVC edge banding
(1) Control the temperature according to the process requirements. If the temperature is low, adjust it appropriately.
(2) Properly reduce the speed of the screw and traction to increase the heating and plasticization time of the plastic to improve the plasticization effect of the plastic.
(3) Use screw cooling water to enhance the plasticization and tightness of the plastic.
(4) When selecting the mold, the mold sleeve should be appropriately smaller to increase the pressure of the glue outlet.
