before using, it should be dried in vacuum drier at 80-90℃. control mold temperature at 60-80℃. injecting adopted low temperature, middle speed and high pressure.
before using, it should be dried in vacuum drier at 120-130℃. control mold temperature at 60-90℃. injecting adopted low temperature, middle speed and high pressure.
the vacuum drier of the invention has the advantages of simple production, wide application range, as well as comparatively high drying uniformity and efficiency.