An Effective Method for Prolonging the Service Life of the Conical Double Barrel Screw

Compared to ordinary single-screw extruder and parallel twin-screw extruder,counter conical twin screw extruder(Hereinafter referred to“cone double”)With its unique feeding area, large compression ratio,cone double barrel screwIn the vertical and horizontal of the material shear and mixing efficiency is higher, plasticizing ability is more excellent characteristics, so it is particularly suitable for high calcium filling.PVCPowder as raw material for the production of plastic profile products.

cone double barrel screwIt is an important part of the injection molding machine and the core of the injection molding machine. It can be saidcone double barrel screwThe correct use and maintenance of the injection molding machine plays a decisive role in the production efficiency and service life. Want to effectively extendcone double barrel screwThe service life, correct cleaning and use is the key.

Within the industry,cone double barrel screwofClean-up maintenanceThere are mainlyThe followingTwoPoint：

1. cylinder cleaning agent

If the replacement of raw materials for products is frequent or the plasticizing temperature range of residual materials and materials in the barrel is quite different, in order to save raw materials and improve work efficiency, it is more economical to use barrel cleaning agent. The special cleaning agent is a rubber-like material that does not melt at high temperature in the barrel.cone double barrel screwIn the thread groove of the softened gel, incone double barrel screwThe residual material can be taken away when moving forward in the thread groove of the, so that the barrel can be cleaned.

The 2. adopts the method of material change and ejection

The plasticizing temperature range of the newly replaced raw material is higher than that of the residual material in the barrel, and the barrel and nozzle can be heated to the temperature range of the newly replaced raw material.PoleLow plasticizing temperature, then add new material and continue to empty injection until there is no residue in the barrel.

In addition,correct usecone double barrel screwmethod and can extend its life.When the injection molding machine is started, the injection molding machine should be fully preheated at this time. When the barrel reaches the pre-set temperature,Φ60mmContinue to keep the following heat preservation15Minutes. of the above30Start the motor after minutes.cone double barrel screwrelated actions; material andcone double barrel screwTo match, especially corrosive materials and hard materials, suchPVCAnd block fuel, glass fiber to increase the material to use professional screw, do not use ordinary screw; and please pay attention to the following points:

1If the common machine with corrosive materials must pay attention to the use of timely use of stable materials suchHDPE,HIPSWait for cleaning and replacement;

2If the ordinary machine accidentally used glass fiber material, must pay attention to use high material temperature, low screw speed, low back pressure.