Blog

(1) The sheet is too hot. The following methods can be adopted to exclude:
Shorten the heating time properly.
Reduce the heating temperature properly.
(2) The melt flow rate of raw material is too high. The raw material with low melt flow rate or the tensile ratio of sheet should be increased properly.
(3) Hot forming area is too large. The screen and other shelters shall be used to make the heating uniform, and the sheet can also be heated in different areas to avoid overheating and collapse in the middle area.
(4) Uneven heating or different raw materials lead to different melting collapses of each sheet. The following methods can be adopted to exclude:
The air distribution plate shall be set at each part of the heater to make the hot air evenly distributed.
The quantity and quality of recycled material in the sheet should be controlled.
Avoid mixing different raw materials
(the heating temperature of the sheet is too high. The heating temperature and time shall be properly reduced, and the heater can also be kept away from the sheet,
Heat slowly.
(2) If the sheet is partially overheated, the overheated part can be covered with a screen