Plastic extruders

PP,PS,PE Plastic sheet extruder:

1.  Production

BC-660PC model plastic sheet material extruder is composed of extruder,net transducer,die head,calender roller,takein machine,electric controller etc.The operational principle of the unit is as below:According to the tristate change of thermoplastic under different temperatures and take advantage of screws push effect,turning physical appearance into high pellet state,and then transform into plastic liquid.After flowing from the mould,then wind in received volumes via pressure-ray cooling stereotypes.The main fratures of this crew as below:feed cylinder,screw and mould are made of high quality alloy structure with the nitrogen(38CrMoa1a).It has high hardnenss,corrosion protection,and long use span.The frame head adopts racks of guns and over.The flowing channel is suitable for the fluxion of liquid,non stagnation phenomena,the thickness of products are homogeneous,the pressure-ray roller adopts big screw shafts.It has excellent effect of adopting water cycle to cool,the temperature of feed cylinder and mould head are controlled by controller separately.The rotational speed of screw,pressure-ray machine rotational speed,rotational speed of received volumes can be adjusted respectively to ensure the speed of the whole set synchronous.

This machine is applicable to the production of PP,PE,PS,environmental protection biological degradation plastic sheet etc.It is widely used for forming of plastic sheet,packaging products,office supplies,antiseptic adhesive tape such as packaging boxes,cup,bowl,salver and so on.

II.Features:

1.  The mould is made of high quality alloy steel,and inside is plated with hard chromium,cladding for 0.020.03mm,roughness for Ra0.05um,corrosion resistant.

2.    Screw together with feed cylinder has such features:high accuracy pitch,wear resisting,corrosion resistance,and the use of double-mixed iron-smelting structure,mixing homogeneous,high plastic performance.

3.   Slowdown box with hard teeth cant,the transmission straight.

4.   The temperature is controlled by PID,with high accuracy and quick response.

5.  Calendering roll adopts spiraling flume structure,and the cooling water distributed reasonably.The surface of roller cylinders is plated with hard chromium,the mirror after finishing treatment for Ra0.05um roughness,hardness degrees for HV≥850.

III.Main Technique Parameter