Cleaning method of barrel screw of machineCleaning method of barrel screw of machine
Bakelite barrel screw cleaning method:
(1) Use barrel cleaner
If the raw materials used for injection products are changed more frequently or the plasticizing temperature range of the residual materials in the bakelite machine barrel is quite different from the refueling, in order to save raw materials and improve working efficiency, it is more economical to use bakelite machine barrel cleaner. Special cleaning agent is a kind of material similar to rubber material. It does not melt in the barrel at high temperature. It is softened in the screw groove of the screw. When the screw groove is moved forward, the residual material can be taken away to make the barrel. Get cleaned up inside.
(2) Adopting the refueling ejection method
If the plasticizing temperature range of the raw material to be replaced is higher than the plasticizing temperature range of the residual material in the barrel of the bakelite machine, the barrel and nozzle can be heated to the minimum plasticizing temperature of the newly replaced raw material, and then add the new refill and continue Inject into the air until there is no residue in the barrel.
If the plasticizing temperature range of the residual material in the screw barrel of the bakelite machine 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 for cleaning later, and finally the new material is put into production. If the product requirements are high, the first few molds of the new material can be discarded.