Brèf analiz de ekipman oksilyè extruder plastik

The auxiliary equipment of the plastic extrusion unit mainly includes pay-off equipment, redresman ekipman, ekipman prechofaj, ekipman refwadisman, ekipman traction, kontwa mèt,

Machin tès etensèl, ekipman pou pran. Itilizasyon inite extruder la diferan, ak ekipman oksilyè yo itilize tou diferan. Tankou aparèy bloke, seche kònen, ekipman enprime, elatriye.

Ekipman redresman: One of the most common types of plastic extrusion waste products is migraine, www.flyseimm.com , and the tortuous cores of various types are one of the important causes of insulation migraine. In sheath extrusion, scratches on the sheath surface are often formed by the twists of the cable core. Se poutèt sa, the straightening equipment in various extrusion units is essential. The main types of straightening equipment are: drum type (divided into horizontal type and straight type); pulley type (divided into single pulley and pulley block); winch type, which has multiple effects such as dragging, straightening, and stable tension; Pressure wheel type (divided into horizontal type and straight type), elatriye.
Preheating equipment: preheating of the cable core is necessary for both insulation extrusion and sheath extrusion. Regarding the insulation layer, especially the thin layer insulation, the existence of pores cannot be allowed. The wire core can be completely removed from the surface of water and oil by high temperature preheating before squeezing. Regarding sheath extrusion, the main effect is to dry the cable core to prevent the possibility of porosity in the sheath due to the effect of moisture (or moisture around the cushion layer).
Preheating can also prevent the plastic from remaining internal pressure due to sudden cooling during extrusion. In the process of plastic extrusion, preheating can eliminate the cold wire entering the high temperature die, (plastik extruder) the large temperature difference formed when touching the plastic at the die mouth, preventing the fluctuation of the plastic temperature and the extrusion pressure. Stable extrusion volume to ensure extrusion quality. Electric heating core preheating equipment is used in the extrusion unit, which needs to have sufficient capacity and ensure rapid heating, so that the core preheating and cable core drying efficiency are high. The preheating temperature is restricted by the pay-off speed, and is usually similar to the head temperature.
Cooling equipment: After the molded plastic extruded layer is separated from the machine head, it should be cooled and shaped immediately, otherwise it will be deformed under the effect of gravity. The cooling method usually uses water cooling, and according to the water temperature, it is divided into rapid cooling and relaxation cooling.
The rapid cooling is direct cooling by cold water. The rapid cooling is beneficial to the shaping of the plastic extruded layer. Sepandan, for crystalline polymers, due to the sudden heat cooling, it is easy to leave internal stress in the extruded layer structure, causing cracks during use. The PVC plastic layer is quenched. Slow cooling is to reduce the internal stress of the finished product. Water of different temperatures is placed in the cooling water tank in sections to gradually cool the finished product. The extrusion of PE and PP uses slow cooling, sa vle di, through hot water, warm water, Three-stage cooling with cold water.
if you need auxiliary equipment of plastic extruder, you can contact us ! China flyseimm or www.flyseimm.com