Views: 0 Author: Site Editor Publish Time: 2022-10-25 Origin: Site
Many people don't know this, but plastic can be recycled. In fact, it is one of the easiest materials to recycle as it does not decompose. All you have to do is collect all your plastic waste and take it to your nearest recycling center. In this article we will show you how to recycle plastic. We also give some tips on how to reduce your plastic waste.
What are the requirements for the preheating unit of the plastic recycling machine?
What are the characteristics of the head and shape of the plastic recycling machine?
How does a plastic recycling machine save energy?
Core preheating of plastic recycling machines is required for both insulation extrusion and sheath extrusion. For the insulating layer, especially the thin-film insulation, the presence of pores must not be allowed, and the wire core can be completely removed from surface water and oil by preheating at high temperature before extrusion. In jacket extrusion, its main function is to dry the cable core to prevent the possibility of pores in the jacket due to moisture (or moisture that surrounds the pillow). The preheating of the plastic recycling machine also prevents the residual internal pressure of the plastic during extrusion by abrupt cooling. In plastic extrusion, preheating can eliminate the enormous temperature difference that occurs when the cold wire enters the high temperature nozzle head and touches the plastic at the nozzle mouth, thereby avoiding the fluctuations in extrusion pressure caused by the fluctuation of plastic temperature. which stabilizes the extrusion volume and ensures the extrusion quality. The electric heating wire core preheater is used in the extrusion unit, which requires sufficient capacity and ensures rapid temperature rise, so that the wire core preheating and cable core drying efficiency is high. The preheating temperature is limited by the discharge speed and is generally similar to the temperature of the machine top.
The head of the plastic recycling machine is composed of an alloy steel inner sleeve and a carbon steel outer sleeve, and a molding mold is installed in the head. The machine head has the task of converting the rotating plastic melt into a parallel linear movement, inserting it evenly and jerklessly into the mold sleeve and giving the plastic the necessary mold pressure. The plastic is plasticized and compacted in the cylinder, and the porous filter plate flows through the neck of the tool along a certain flow channel into the mold of the tool. A continuous and dense tubular sheath layer is formed around the core wire. In order to ensure a reasonable plastic flow channel in the machine head and eliminate the blind angle of accumulated plastic, a secondary circuit sleeve is often installed. In order to eliminate the pressure fluctuation in plastic extrusion, a pressure compensation ring is also installed. The machine head is also equipped with a mold correction and adjustment device, which is suitable for adjusting and correcting the concentricity of the mold core and mold sleeve.
Most plastic recycling machines use frequency converters. The energy saving method is to save the excess energy consumption of the motor. For example, the actual power of the motor is 50 Hz, but you actually only need 30 Hz in production. The frequency inverter is supposed to change the output power of the motor to achieve the effect of energy saving.
Zhangjiagang YaTong Machinery Co., Ltd. as a Chinese pioneer of digital paper cutting machine, can ensure the quality of phase stable cable assemblies and after-sales service.