エクストルーダーのバレルとスクリューをきれいにする方法は?


ニュース アンディ 2023年3月16日

How to clean the extruder barrel & Screw?

After the extruder has been used for a period of time, it should be cleaned regularly, because long-term use will cause a lot of stains inside the barrel, and these stains will accumulate for a long time, which will affect the normal use of the extruder. It will also delay production, so it is necessary to carry out regular cleaning to ensure the normal operation of the machine.



1. The extruder uses a barrel cleaner. If the raw materials for injection products are frequently replaced or the plasticizing temperature range of the residual material in the barrel and the replacement material is quite different, in order to save raw materials and improve work efficiency, use barrel cleaner. is relatively economical. The special cleaning agent is a kind of material similar to rubber material. It does not melt at high temperature in the barrel and screw. It is in the form of softened micelle in the thread groove of the screw. Cleaned up inside.

2. The extruder adopts the material changing ejection method. If the plasticizing temperature range of the new material to be replaced is higher than the plasticizing temperature range of the residual material in the barrel, the barrel and nozzle can be heated to the plasticizing temperature of the new material. , then add new refill and continuously inject into the air until there is no residual material in the barrel.

3. If the plasticizing temperature range of the residual material in the barrel is higher than the plasticizing temperature range of the material to be replaced, the barrel should be heated up to the plasticizing temperature range of the residual material in the barrel to remove the residual material. The nozzle material can be added later for cleaning, and new material is put into production. If the product requirements are high, the first few molds of the new material can be scrapped.

When cleaning the extruder, remember to pay attention to the internal structure to avoid damage to the barrel when dismantling and washing, which will affect the later use. Only when the machine is cleaned properly can the production continue and the service life be extended.

 
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