干燥機(jī) Drying Machine

干燥料斗是用來去除塑料原料中的濕氣的。如果塑料原料未經(jīng)干燥就送進(jìn)注塑機(jī)的話，含在原料中的濕氣在原料溶解后會變成氣泡。注塑后氣泡會出現(xiàn)在瓶胚的表面，增加了瓶胚的報(bào)廢率，從而造成最終生產(chǎn)的損失。所以在注塑之前先除濕是非常必要的，PET原料在注塑之前一定要在干燥料斗中用175℃的高溫加熱干燥5到6個小時(shí)。干燥后，生產(chǎn)出的瓶胚不會有水泡以及較好的表面效果。在料斗中除濕還有一個好處就是減少了原料從中心干燥器運(yùn)送到機(jī)器料斗的過程中被污染的可能性。

Drying hopper is used for removal of moisture in plastics raw materials. If plastic materials into injection molding machine without drying, moisture in the raw material in raw materials dissolves into a bubble. Bubbles appear in the surface of the preform after injection, increases the preform the scrap rate, resulting in a final loss of production. Dehumidification is necessary before the injection, PET raw materials prior to the injection must be 175 in the drying hopper ℃ high temperature heating and drying of 5-6 hours. After drying, the preform production does not have blisters as well as good surface effect. Desiccant in the hopper there is a benefit that reduces raw material dryers from the Center to the possibility of contamination during machine hopper.