Extrusion is a process used to create objects of a fixed cross-sectional profile by pushing material through a die of … See more

In 1797, Joseph Bramah patented the first extrusion process for making pipe out of soft metals. It involved preheating the metal and then forcing it through a die via a hand-driven plunger. In 1820 Thomas Burr implemente… See more

The process begins by heating the stock material (for hot or warm extrusion). It is then loaded into the container in the press. A dummy block is placed behind it where the ram then presses on the material to push it out … See more

There are many different variations of extrusion equipment. They vary by four major characteristics:
• Movement of the extrusion with relation to the ram. If the die is held stationary and the ram move… See more

Metals that are commonly extruded include:
• Aluminium is the most commonly extruded material. Aluminium can be hot or cold extruded. If it is hot extruded it is heated to 575 to 1100 °F (300 to 600 °C). Examples of products … See more

With the advent of industrial manufacturing, extrusion found application in food processing of instant foods and snacks, along with its already known uses in plastics and metal fabrication. The main role of extr… See more

• Curtain coating
• Equal channel angular extrusion
• Extrusion coating
• Film blowing machine… See more