Coextrusion

Coextrusion

  • 17/10/2018 08:45:59

Coextrusion enhances the process of extrusion coating and lamination. Prior to single-pass coextrusion, the use of a sandwich resin structure required multiple passes or multiple coaters from a single …

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Seam extruder die _2

Seam extruder die _2

  • 16/10/2018 08:52:41

The final forming section or lip must be adjustable with the resin transverse thickness control of the die. This can be achieved by moving one lip to move the other lip. This movement can also be made …

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Seam extrusion die _1

Seam extrusion die _1

  • 15/10/2018 09:05:29

When a single extruder is used, the resin typically enters the population mold from the needle valve through a 25-37 mm diameter drop tube. The die must distribute the material throughout the exit widt…

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Valve device for extruder

Valve device for extruder

  • 12/10/2018 09:21:05

After passing through the web (but in front of the die), it is preferred to have a polymer pressure limiting device to vary the total outlet pressure required for good mixing within the screw, and the …

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Mesh filter for extruder

Mesh filter for extruder

  • 11/10/2018 09:22:26

The resin is filtered after leaving the barrel and screw area to ensure that a clean polymer is applied to the web. The filter also reduces infusibles such as fish eyes and gels in the polymer melt str…

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Base plate structure of extruder

Base plate structure of extruder

  • 10/10/2018 09:32:52

Base plate of the extruder: The base plate supports various components such as a drive unit, a gear reduction box, a barrel bracket, a barrel cooling system, and a die holder.The barrel bracket must be…

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Extrusion machine configuration

Extrusion machine configuration

  • 09/10/2018 09:07:09

A safety tube (or disk) is installed at the discharge end of the barrel. If the pressure inside the barrel increases to an unsafe limit, the safety tube will break. A fracture pressure of about 50,000 …

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Cylinder coating of extruder and screw

Cylinder coating of extruder and screw

  • 08/10/2018 08:54:03

The coating of the barrel of the extruder: it is required to cover the insulation layer and the heater area with metal sheets to protect the operator from contact with the high temperature surface. The…

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Coextrusion

Coextrusion

Coextrusion enhances the process of extrusion coating and lamination. Prior to single-pass coextrusion, the use of a sandwich resin structure required multiple passes or multiple coaters from a single coater. Coextrusion is used to reinforce recyclable wa

Seam extruder die _2

Seam extruder die _2

The final forming section or lip must be adjustable with the resin transverse thickness control of the die. This can be achieved by moving one lip to move the other lip. This movement can also be made by means of a large-diameter hard-form lip (hard-forme

Seam extrusion die _1

Seam extrusion die _1

When a single extruder is used, the resin typically enters the population mold from the needle valve through a 25-37 mm diameter drop tube. The die must distribute the material throughout the exit width to form a suitable thickness and a smooth surface. T

Valve device for extruder

Valve device for extruder

After passing through the web (but in front of the die), it is preferred to have a polymer pressure limiting device to vary the total outlet pressure required for good mixing within the screw, and the possibility of using a fixed orifice is small. The mos

Mesh filter for extruder

Mesh filter for extruder

The resin is filtered after leaving the barrel and screw area to ensure that a clean polymer is applied to the web. The filter also reduces infusibles such as fish eyes and gels in the polymer melt stream. The most common type of filtration in coating/com

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