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Laiwu Everflying Plastic Machinery Co., Ltd. welcome you!

    Laiwu Everflying Plastic Machinery Co.,Ltd is a pace-setting technologically advanced enterprise that devoted to the R&D and businesses of plastic machines.At the same time,our company also is the national key high-tech enterprise and China water-saving irrigation association equipment R&D central enterprise.The company always taking “People oriented,Honest operation” as tenet;draws support form quality to occupy the market;extends market by developing products;and draws support from management to gain benefit and growth.

The working principle of the double-layer plastic extruder

    Although the structure of the twin screw extruder is similar to single screw extruder, but on the principle of work, there are a lot of differences.A single screw extruder machine, material forward power mainly depends on the difference of the friction of material and barrel and screw. If the friction coefficient of material and barrel is too small, when the screw rotation, the material will hold screw rotation together, to make the thread can't exert its propulsion function.But it is different for the twin screw extruder, the two screw tooth close to each other. Teeth together, a screw thread insert another screw groove of screw , make continuous spiral groove is divided into isolated C shape Chambers. As part of axial movement, c-shaped chamber also along the axial movement when screw rotates. Each turn of the screw, c-shaped chamber is moved forward a lead distance, the material of c-shaped chamber, due to thrust of the the tooth thread , the trend of the screw rotation of material have been hampered, and is threaded into the forward. In the process of conveying it won't produce reversal or stagnation, so have the greatest force transmission.
    Because of the double screw extrusion machine has a effect of making  the material stay in the twin screw's time short and even, it’s hard to generate partial degradation characteristics of metamorphism.It has unique advantage for heat sensitivity materials that if stay time is long will thermal decomposition, curing or condensed, coloring, such as  coloring , mixing, products production of PVC materials .
    Because of the double screw extrusion machine has a effect of making  the material stay in the twin screw's time short and even, it’s hard to generate partial degradation characteristics of metamorphism.It has unique advantage for heat sensitivity materials that if stay time is long will thermal decomposition, curing or condensed, colo

Laiwu Everflying Plastic Machinery Co., Ltd

Tel:0086-634-5606066      

Fax:0086-634-5607066

Add.: Middle Jing'gangshan Road, High-tech Zone, Laiwu, Shandong, China

Skype: linalee288  

WhatsApp 008613563488171

Email: lina_8866@126.com   1973965115@qq.com

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