Blog

Tuis> Blog > Plastiese extrusieproses: die extrusiebedekkingsproses

Plastiese extrusieproses: die extrusiebedekkingsproses

2020-10-26

Die plastiese extrusieproses word lewendig

Anders as wat algemeen geglo word, is plastiek nie ons vyand nie. Plastiek bied ons voedsel en daarom is die plastiese ekstruderingsproses  noodsaaklik. Elke grondstof het 'n spesifieke toestand voordat dit verander word. Plastiek verskyn nie wonderbaarlik uit die lug nie; dit het 'n rou begin gevolg deur 'n verwerkte einde.

The process of extrusion in itself is awe-inspiring. Massive machines are responsible for the procedure of plastic extrusion. All the plastic we have around today comes through the very same process. Take a look around, you can probably spot one or two things made from plastic. Plastic is not the problem; plastic disposal is the actual problem.

Without plastic, we would need to rely on less efficient material. Everything boils down to how we recycle plastic. We consider the Recycling options more after reports of rapid deterioration in earth’s state and nature, one such option is plastic extrusion.

Raw plastic has to undergo various stages to transform into the shape we see. Plastic extrusion is easy to manage. Plastic industries have shifted from using conventional machines to user-friendly and modern extrusion machines. The extrusion machine does most of the primary work.

Plastic Extrude Process

The extrusion machine seen like never before

As mentioned earlier, the plastic extrusion machine is the most vital element in the whole machine. Plastic extrusion requires a massive amount of work, only done by large machinery.

The whole process could take ages without the extrusion machine and even then, the quality would not be extraordinary. The extrusion device not only makes plastic usable but can also reprocess discarded plastic items.

By nadere ondersoek het die masjien 'n taamlike ongekompliseerde interieur. Die toestel bestaan ​​uit 'n skroewedraaier, loop, skroewedraaiermotor en 'n trechter. As u die extrusiemasjien opwarm voor die proses, kan dit dus glad verloop en die kans op skade voorkom.

U kan die hele plastiese ekstruderingsproses, maar die draaiende skroef dra die meeste by om die vorm en make-up te verander.

Die termostatiese skroef draai in die masjien; dit het vyf moontlike sones. Die voersone of die vaste stowwe is waar die hars na die extruder gedruk word. Dus, die smeltsone is die plek waar die meerderheid van die polimeer gesmelt word, wat die kanaaldiepte verminder. Die derde en laaste sone is waar enige oorblyfsels gesmelt en gemeng word tot 'n eenvormige tekstuur en temperatuur.

Fout! Lêernaam nie gespesifiseer nie.

Exploring the plastic extrude process up close

The plastic extrusion process unravels in a series of steps. The primary raw material included in the extrusion process is resin. Thus, the mixture of many organic compounds makes resin highly viscous and thermoplastic in nature. The input and output of an extrusion machine are physically unrecognizable.

Gravity allows the resin to land on the barrel from the hopper. So, the material is transferred to the rotating screw, which feeds it across to the heated barrel. The plastic beads melt in the heated barrel. Overheating of the barrel will cause degradation of raw materials

The effects of pressure and friction make in to action in the heating barrel. As soon as the screw drive is done with the resin, it travels through a screen pack to remove the slightest containment. The final step is the die. The die provides a profile to the final product. Molten plastic is enters the die and leaves it with a specific shape.

Almost any outline can be fulfilled but the only prerequisite is the profile must be continuous. A non-continuous profile relates closer to injection molding. After the whole process is over, the plastic is at very high temperatures.

The high temperature of plastic makes it hard for workers to handle it, causing accidents and unwanted injuries. This cooling process needs to be as fast as possible, luckily plastic cools down faster as compared to other resources.

Types of die: extrusion coating process

When it comes to extrusion, dies are no joke. Also, the presence of die causes continuous extrusion otherwise; the process would be similar to injection molding. Even if the dies are different from the outer structure, they provide the same services

The few major types of die are:

  1. Blown film extrusion: annual, spider and spiral
  2. Sheet/film extrusion: T-shaped, coat hanger
  3. Tubing extrusion: Annual, spider and spiral
  4. Over jacketing extrusion: Blended material
  5. Extrusion coating: Coating existing layer

Dies have their own structure so that the molten plastic can pass through them and take their form. Therefore, dies are usually flat or hollow depending on the product. Extrusion coating does not create a new form rather it covers the existing one. This process is similar to lamination in theory however they differ in terms of the substrate.

Materials subjected to extrusion coating are:

  1. Cereal grain
  2. Dry chemicals
  3. Aseptic containers
  4. Paper Clips
  5. Industrial wraps
  6. Fout! Lêernaam nie gespesifiseer nie.
    Aluminum foil

Extrusion coating is a quicker process because the substrate only has to be coated, coating takes up half the time as creating a whole new form.

In extrusion coating, the substrate is moving. Thus, molten form resin is pushed through a horizontal slot die to bind around the substrate. A common example of an extrusion coating is tetra park. Materials are plastic-covered to increase durability, plastic coating gives off a sense of formality.

Plastic Extrude Process - china

Plastic extrusion Process-Take away

A plastic-free world is years away, if we want to be environmentally responsible the root cause of plastic pollution needs rectification. Undeniably the plastic extrude process is paving the way for proper plastic recycling. Recycled plastic can give added benefits to the economy and even the environment.

Die plastiese extrusieproses is eenvoudiger as ander tegnieke, maar hierdie stelsel ondergaan nog baie veranderinge. Die tyd sal dus slegs die tegnologiese vooruitgang leer wat voorlê, tot dan moet die sukses van hierdie proses gevier word.

For more details regarding plastic extrusion Kontak ons ​​nou.

mail top