The structure and function of parallel twin screw extruder are analyzed

The parallel twin screw extruder is generally applied to the filling, blending, modification, strengthening, chlorinated polypropylene and high water-absorbing resin of rubber and engineering resin. The extrusion of biodegradable mother material, polyamide condensation polymerization and polyurethane polymerization; The preparation of carbon powder, magnetic powder, cable insulating material, sheath material, low-smoke low-halogen flame retardant PVC cable and various silane crosslinking materials.

Structural features of parallel twin screw extruder:

The barrel and screw are made of "block" structure, full meshing tooth type screw, powerful self-cleaning function.

According to the user's process requirements of various kinds of materials, the combination can be interchangeable and widely adaptable, mixing, plasticizing, and exhaust effect are good.

Dc motor, thyristor governor or ac motor variable frequency governor.

The cylinder material is treated with nitrogen, or alloy sleeve, good wear resistance.

Performance characteristics of parallel twin screw extruder:

The wear condition of vulnerable parts can be easily understood. Due to the convenience of opening, it can be found that the thread components and the inner lining of the cylinder can be used to repair or replace effectively. It is not necessary to find out the problem of extruding product and cause unnecessary waste. Lower production costs. When you make a mother, you often need to change colors. The ordinary twin screw extruder needs to use a large number of cleaning machine to clean the machine when changing color, which is time-consuming, costly and wastes raw materials. And parallel twin-screw extruder can solve this problem, change the color, as long as a few minutes can quickly open the machine, manual cleaning, so that it can use need not or less cleaning materials, save the cost.

Improve labor efficiency. In the maintenance of the equipment, the ordinary twin screw extruder often has to remove the heating and cooling system first, then the screw is pulled out. The parallel twin screw is not needed. Just release a few bolts, turn the worm wheel box handle and lift the upper part of the machine to open the whole barrel, and then repair it. Improved productivity.

High torque, high speed, low energy. High speed is efficient. Parallel twin screw extruder can rotate at 500 RPM. Therefore, it has a great advantage in processing high viscosity and thermal sensitive materials.

It can be applied to the processing of various kinds of materials, such as polyamide polyamide polyamide polyamide, polyamide polycondensation extrusion, carbon powder, magnetic powder granulation.