PVC hose machine- development process

The extruder originated in the 18th century. The manually piston extruder for making seamless lead pipes, manufactured in 1795 by J o s e p h B r a Ma h of England, was considered the first extruder in the world. Since then, in the first 50 years of the 19th century, extruders have been largely used in lead pipe production, macaroni and other food processing, brick and ceramic industries.
extensive use
For the first time in the development of a manufacturing method, R. B. R. O. M. n. filed a patent in 1845 for the production of Gutterbo glue wires from a n extruder. Goodwave’s H.B.e.w.l.y. subsequently improved the extruder and used it in 1851 to coat the first submarine cable between D.v.e.r. and C.l.a.i.s on a copper w I r E. Over the next 25 years, extrusion method 13 became increasingly important and gradually an electric-operated extruder quickly replaced the previous manual extruder. Initially, mechanical-operated plunger extruders produced tens of thousands of kilometers of insulated wires and cables, thus firmly establishing the status of extrusion for cable production. Early cable extruders, whether manual, mechanical or hydraulic, were all plunger-type. In this production process, the plunger pressed the hot gutta-percha glue into the die with the copper conductor, and the gutta-percha glue was extruded from the die, thus forming an insulating layer on the copper conductor.