Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Method for producing a twin screw cylinder provided with a wear-protective layer

A technology of twin-screw and protective layer, which is used in the field of manufacturing twin-screw cylinders with wear protective layer, can solve the problem of high cost and achieve the effect of reducing operating expenses

Inactive Publication Date: 2016-05-04
莱芬豪舍机器制造公司
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technique described above has proven to be effective for many years, but the manual production is expensive and during use, when the wear protection layer, which usually occurs only in regions, becomes worn, it entails the subsequent replacement of the entire cylinder, at least of the resulting wear The necessity of a protective layer for the entire inner liner

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for producing a twin screw cylinder provided with a wear-protective layer
  • Method for producing a twin screw cylinder provided with a wear-protective layer
  • Method for producing a twin screw cylinder provided with a wear-protective layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] figure 1 shows a twin-screw cylinder designated as a whole by the reference numeral 1 in a known manner as a component of a corresponding twin-screw extruder for plastics processing, the twin-screw cylinder With a cylindrical base body made of a suitable metallic material, two bore holes 10 , 11 which in the illustrated embodiment run exactly parallel to one another and have the same diameter are introduced into the base body in such a way that the two bore holes pass through each other and delimit an overlapping region 10 here.

[0032] Each of the two boreholes 11 , 12 is provided with an inner lining 21 , 22 with a substantially C-shaped cross-section, which extend mutually to each other in the overlapping region 10 so that the borehole The entire inner surface of 11 , 12 is covered by inner lining layers 21 , 22 . The inner linings 21 , 22 here are made of a suitable, for example bimetallic material and serve as a wear protection layer for being accommodated insid...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for producing a twin screw cylinder (1) provided with a wear-protective layer, according to which method two bores (11, 12), which run substantially parallel to each other and overlap each other, are made in a cylinder, and then two linings (21, 22) are introduced into the bores (11, 12), said linings being provided with a substantially C-shaped cross section, continuing from each other in the overlap region (10) of the bores (11, 12), forming the inner surface (110, 120) of the bores (11, 12) and acting as a wear-protective layer. The method is characterised in that firstly a first tubular lining (21) is introduced into a first of the bores (11) and is subsequently cut open in accordance with the diameter (D) of the other bore (12) to form the C-shaped cross section, and then a second tubular lining (22) is introduced into the second of the bores (12) and is subsequently cut open in accordance with the diameter (A) of the inner surface (110) of the first bore (11), said surface being formed by the first lining (21), thus forming the C-shaped cross section.

Description

technical field [0001] The invention relates to a method for producing a twin-screw cylinder provided with a wear protection layer, wherein two boreholes extending substantially parallel to each other and coincident with each other are introduced into the cylinder and the two inner linings are subsequently inserted into the borehole In the borehole, the lining layers have a substantially C-shaped cross-section and extend mutually to each other in the coincident region of the borehole, these lining layers form the inner surface of the borehole and serve as a wear protection layer. Background technique [0002] Twin-screw barrels are used in plastics processing by twin-screw extruders and house the extrusion screws. Various methods are known for producing such twin-screw cylinders, see for example US3277529, US3268949, US3010151 and DE2231046A1. [0003] In the known twin-screw barrels the wear protection layer is formed by first introducing bore holes in the barrel which wil...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/08B29C47/66B29C48/40
CPCB29C48/2565B29C48/25684B29C48/6803B29C48/40B29C48/682B29B7/46B29B7/58
Inventor 彼得·本迪希托马斯·波斯特纳
Owner 莱芬豪舍机器制造公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products