What is PS foam sheet extrusion line?
Macro’s PS Foam Extrusion Line is a tandem extruder system that produces expanded polystyrene sheet (EPS) at extrusion output rates up to 700 kg/h. The line is equipped with a loss-in-weight feeding system that regulates an accurate blending ratio.
What is an extrusion line?
A sheet extrusion line consists of an Extruder (single or twin screw), equipped with a Screen Changer and a Gear Pump, followed by a Static Mixer (sometimes feeding a Coextrusion Feedblock that is preceded by one or more additional extruders sets as described above), feeding a flat sheet die.
What is an extrusion sheet?
Sheet extrusion is a technique for making flat plastic sheets from a variety of resins. The thinner gauges are thermoformed into packaging applications such as drink cups, deli containers, produce trays, baby wipe containers and margarine tubs.
What is extruder machine?
An extruder is simply the machine used to complete the extrusion process. Using a system of barrels and cylinders, the machine heats up the product and propels it through the die to create the desired shape.
What are the disadvantages of extrusion?
Disadvantages of extrusion
- Variations in size of product.
- Product limitations because of only one type of cross section can be obtained at a time.
- High initial cost setup.
Is PVC pipe extruded?
PVC pipes are manufactured by extrusion of raw material PVC, and generally follow the same steps of typical pipe extrusion operations: Feeding of raw material pellets / powder into the PVC twin screw extruder. Melting and heating in multiple extruder zones.
Why is extrusion used?
Extrusion is a technique where molten polymer is forced through a die and is used to produce components of a fixed cross-sectional area such as tubes and rods.
Where are Extruders used?
rubber processing Extruders are used to produce long continuous products such as tubing, tire treads, and wire coverings. They are also used to produce various profiles that can later be cut to length. Multiroll calenders are used to make wide sheeting.
What is a screw extruder?
A single screw extruder is a machine used to form a plastic product into the required shape. The machine heats the plastic raw material (e.g. PVC) to its melting point, after which it is pushed through a die that gives the material its shape.
How many types of extrusion are there?
Extrusion is classified in general into four types. They are: Direct extrusion, indirect extrusion, impact extrusion and hydrostatic extrusion.
What are the types of extrusion?
Types of Extrusion Process
- Direct Extrusion.
- Indirect Extrusion.
- Hydrostatic Extrusion.
- Lateral or Vertical Extrusion.
- Hot extrusion.
- Cold Extrusion.
- Impact Extrusion.
What is extruded pipe?
A pipe extrusion line consists of different parts. An extruder converts raw plastic material into a continuous tubular melt by extrusion through an annular die. After being cooled, the pipe passes via an haul-off to the cutting machine, for cutting it into final lengths, or coiling.
What kind of sheet is pp sheet extrusion?
Bringing in international advanced technology, combined with our practical experience and domestic requirement, PP sheet extrusion line has been designed and developed by ourselves and is used to produce plastic sheet. Acording to different customers’ requirement can produce PVC, PP, PE, PS, ABS or some other extrusion sheet.
Which is the best sheet extrusion line in China?
Beier Machinery is specialized in providing you with PP sheet extrusion line in China. This PP sheet extrusion machine is composed of special single screw or twin-screw extruder, die and downstream equipment. High output, stable extrusion, high foaming, smooth and wearable surface are the advantages of this sheet extrusion line.
How is temperature control used in sheet extrusion?
Temperature control uses SCR system, tolerance of temperature for that is±1℃, this may precisely control plasticizing processes, sheet thickness, flatness and neatness. Embossing station is operated lifted up and pulled down freely. During operation, this will provide more choices for both thick sheet and thin sheet and to upgrade product quality.
What does t-die mean in sheet extrusion?
T-die is special double throttling design to enable adjustment for sheet thickness to be more accurate. Temperature control uses SCR system, tolerance of temperature for that is±1℃, this may precisely control plasticizing processes, sheet thickness, flatness and neatness.