What is reactive extrusion used for?

In reactive extrusion, the co-rotating, intermeshing twin-screw extruder that is traditionally used to melt, homogenize, and pump polymers through dies for compounding, is used for the synthesis of polymers.

What is reactive extrusion process?

Reactive extrusion (REX) is a manufacturing method that combines the traditionally separated chemical processes (polymer synthesis and/or modification) and extrusion (melting, blending, structuring, devolatilization and shaping) into a single process carried out onto an extruder.

Which of the process is using extrusion concept?

In which extrusion process the direction of flow of metal is in same direction as that of ram? Explanation: Direction extrusion is a process in which the metal billet, placed in a container is forced by a ram to pass through a die. In this type, the direction of flow of metals is, in same as that of movement of ram.

Can metal be extruded?

Metal extrusion is a forming process in which we force a metal (either hot or cold) through a die. This imparts the die shape to the extruded metal as it passes through the cavity. The material emerging from the die is known as “extrudate”. The metal endures compressive and shear stress to achieve the die shape.

Which of the material is not used in extrusion?

Which of the following is not an application of polymer extrusion? Explanation: Circuit boards is not an application of polymer extrusion.

What metal is best for extrusion?

Which Metals Are Used for Custom Extrusions?

  • Aluminum. Manufacturers can extrude aluminum—the most frequently extruded material—using either the hot or cold methods.
  • Brass.
  • Titanium.
  • Nickel.
  • Other metals.

Which metals can be extruded?

The most commonly extruded materials are Aluminium, Copper, Steel, Magnesium, and Lead. Plastics and ceramics are also extruded extensively but not discussed in this article.

Which of the following material is used in extrusion?

Explanation: Extrusion is a process of forcing plastic which is at a very high temperature, through the dies, and gets opened at a required shape. The raw materials used for extrusion with polymers contain granules, powder and thermoplastic pellets. 2.

Which of the following is NOT advantage of extrusion processing?

6. Which of the following is not used because of the problem of handling extruded metal coming out through moving ram? Explanation: Indirect extrusion method is not used because of the problem of handling extruded metal coming out through moving ram.