What is extruder?
Extrusion is a process used to create objects of a fixed cross-sectional profile. A material is pushed through a die of the desired cross-section. The two main advantages of this process over other manufacturing processes are its ability to create very complex cross-sections, and to work materials that are brittle, because the material only encounters compressive and shear stresses. It also forms parts with an excellent surface finish.
Drawing is a similar process, which uses the tensile strength of the material to pull it through the die. This limits the amount of change which can be performed in one step, so it is limited to simpler shapes, and multiple stages are usually needed. Drawing is the main way to produce wire. Metal bars and tubes are also often drawn.
Extrusion may be continuous or semi-continuous. The extrusion process can be done with the material hot or cold. Commonly extruded materials include metals, polymers, ceramics, concrete, modelling clay, and foodstuffs. The products of extrusion are generally called “extrudates”.
Extruder Process
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 of the die. Afterward the extrusion is stretched in order to straighten it. If better properties are required then it may be heat treated or cold worked.
The extrusion ratio is defined as the starting cross-sectional area divided by the cross-sectional area of the final extrusion. One of the main advantages of the extrusion process is that this ratio can be very large while still producing quality parts.
Where to buy extruder?
Incepted in 2004, at Changzhou, Jiangsu, China, we, “Jiangsu Sunkoo Machine Tech Co., Ltd”, are one of the renowned manufacturers of quality range of PTFE/ Teflon and UHMWPE machine. Our comprehensive array includes PTFE & UHMWPE Rods Ram Extrusion Machines, PTFE & UHMWPE Ram Extrusion Machines, PTFE Molding Machines, PTFE Gasket Machines & Sintering Furnace/Ovens.
Sunkoo’s enormous strength comes from a wonderful combination of its highly efficient and professional management and a dedicated workforce of qualified and experienced engineers and technicians and marketing personnel, which in turn, leads to world-class manufacturing, testing and R & D , besides meeting requirements of clients’ specifications globally.
Export to USA, UAE, Saudi Arabia, Korea, India, Russia, Philippines, Indonesia, Malaysia, etc.
With fully technology support and process instruction to customers. Best after service after site commissioning. Our clients have appreciated our quest for excellence, by giving us repeat orders, which speaks volumes about our commitment in providing complete customer satisfaction.
Contact Us:https://ptfe-machinery.com/contact/
