History of extruder development

The extruder originated in the 18th century. The manual piston extruder used to manufacture seamless lead pipes manufactured by Joseph Bramah (England) in 1795 is considered the world's first extruder. Since then, during the first 50 years of the 19th century, the extruder was basically only suitable for the production of lead pipes, the processing of macaroni and other foods, the brick and ceramic industries. In the process of development as a manufacturing method, the first time it was clearly documented was R. Brooman's patent application in 1845 for the production of Goodbo glue wires with an extruder. H． Bewlgy then improved the extruder and used it to coat the copper wire of the first submarine cable between Dover and Calais in 1851. In 1879, British M. Gray obtained the first patent for the use of Archimedes spiral screw extruder. In the following 25 years, the extrusion method became more and more important, and the manual extruder was quickly replaced by an electrically operated extruder. In 1935, the German machinery manufacturer Paul Troestar produced an extruder for thermoplastics. In 1939, they developed the plastic extruder to a current stage-the modern single-screw extruder stage.