The extruder should be cleaned regularly after using it for a period of time. Because of long-term use, a lot of stains will be generated in the barrel. If these stains accumulate for a long time, it will affect the normal use of the extruder Bimetallic Screw Barrel and delay production. Therefore, it should be cleaned regularly to ensure the normal operation of the machine.
So how to clean the extruder barrel? Common extruder cleaning methods are as follows:
1. If the raw materials used in the injection products are frequently replaced or the plasticization temperature range between the residual material and the replacement is large, use a barrel cleaner to clean the extruder. How to clean the extruder barrel to save materials and improve work efficiency? Generally speaking, it is more economical to use machine barrel cleaners. The special cleaning agent is a material similar to rubber, which does not melt at high temperatures in the barrel. The special cleaning agent in the thread groove is soft and gel-like. When moving forward in the thread groove, the remaining material can be taken away, thereby cleaning the barrel.
2. The extruder is cleaned by the method of refueling and ejection. If the plasticizing temperature range of the new refueling is higher than the plasticizing temperature range of the residual material in the extruder barrel, the barrel and nozzle can be heated to the plasticizing temperature of the new refueling, and then new oil is added and the air is continuously injected In the barrel until there is no residual material in the barrel.
3. If the plasticization temperature range of the residual material in the barrel is higher than the plasticization temperature range during replacement, the barrel should be heated to the plasticization temperature range of the residual material in the barrel to remove the residual material. After the water nozzle is cleaned, it can be put into production with new materials. If the product requirements are high, the new materials of the first few molds can be scrapped.
Note: How to clean the extruder barrel requires some precautions. Please pay attention to the internal structure when cleaning the extruder, so as not to damage the barrel during disassembly and washing, which will affect the later use. Only by properly cleaning the machine will the production continue and the service life will be extended.