65/30 bimetallic single screw barrel for blowing film

65/30 bimetallic single screw barrel for blowing film

$1450≥1Set/Sets

Payment Type:	L/C,T/T,Paypal,D/A,D/P
Incoterm:	FOB,CFR,CIF,EXW
Min. Order:	1 Set/Sets
Transportation:	Ocean,Land,Air,Express
Port:	Ningbo,Shanghai

Option:

65/30

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Product Description

Product Attributes

Packaging & Delivery

Product Description

Product Attributes

Model No.: 65/30

Hardening Hardness: Hb280-320

NITRIDED HARDNESS: Hv900-1000

Nitrided Case Depth: 0.45-0.8mm

Nitrided Brittleness: Less Than Grade 2

Surface Roughness: Ra 0.4

Screw Straightness: 0.015mm

Alloy Hardness: Hrc56-65

Place Of Origin: China

Status: New

Type Of Accessories: Barrel, Screw

Video Factory Inspection: Provided

Mechanical Test Report: Provided

Warranty Period: 1 Year

Core Selling Point: High Rigidity

Where To Provide Local Services (in Which Countries Are There Overseas Service Outlets): None

Out-of-warranty Service: Online Support

Applicable Industry: Manufacturing Plant

Showroom Location (in Which Countries Are There Sample Rooms Overseas): None

Alloy Depth: 0.8-2.0mm

Packaging & Delivery

Selling Units	:	Set/Sets
Package Type	:	PE film and plywood case
Picture Example	:

Product Description

Products Description

This figure provides a schematic representation of a simple metering screw. It is composed of three main sections; the feed section, transition section and metering section. The feed section, which is often also referred to as the conveying zone, is responsible for conveying materials (pellets, fluff and powder) forward to the transition section. The transition section is the portion of the screw where the majority of the melting takes place. The metering section, also called melt conveying or pumping zone, delivers the melt toward the discharge end of the extruder.

Process.

*Plastic melt is extruded through an annular slit die, vertically to form thin walled tube *Air is introduced in the centre of the die to blow up the tube like a balloon(IBC) *Air ring blows onto the hot film to cool it (outside and inside the tube) *The tube passes through nip rolls where is flattened * Collapsed tube is taken back down the extrusion tower via more idler rollers *On winder the tube or film is wound into rolls