Global Patent Index - EP 1472074 A1

EP 1472074 A1 20041103 - METHOD FOR PRODUCING A PLASTIFICATION SYSTEM THAT COMPRISES WEAR-PROTECTING LAYERS VARYING ACROSS ITS AXIAL LENGTH

Title (en)

METHOD FOR PRODUCING A PLASTIFICATION SYSTEM THAT COMPRISES WEAR-PROTECTING LAYERS VARYING ACROSS ITS AXIAL LENGTH

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES PLASTIFIZIERSYSTEMS MIT ÜBER SEINE AXIALE LÄNGE VARIIERENDEN VERSCHLEISSSCHUTZSCHICHTEN

Title (fr)

PROCEDE DE PRODUCTION D'UN SYSTEME DE PLASTIFICATION POURVU DE COUCHES DE PROTECTION CONTRE L'USURE PRESENTANT DES PROPRIETES DE PROTECTION VARIABLE SUR SA LONGUEUR AXIALE

Publication

EP 1472074 A1 20041103 (DE)

Application

EP 02787941 A 20021212

Priority

  • DE 10161363 A 20011214
  • EP 0214155 W 20021212

Abstract (en)

[origin: WO03051610A1] The invention relates to a method for producing a plastification system that comprises a wear-protecting coating (6, 8) with wear-protection properties that vary across the axial length. Said wear-protecting coating is applied to the surface of plastification, mixing or conveying screws and/or to the interior surfaces of plastification cylinders (7) of plastics processing machines. According to the invention, a strip (1), containing a coating material, is applied to the surface of the plastification, mixing or conveying screws and/or to the interior surfaces of plastification cylinders (7). Said strip varies in kind or composition in different axial sections of the plastification, mixing or conveying screws and/or to the interior surfaces of plastification cylinders (7), adapted to the kind of wear prevailing in the respective axial sections. The strip (1) is then thermally treated so that a wear-protected surface is obtained.

IPC 1-7

B29C 47/60; B29C 45/60; B29C 45/62; B29C 47/66; C23C 24/10

IPC 8 full level

B29C 45/60 (2006.01); B29C 45/62 (2006.01); C23C 26/00 (2006.01); C23C 30/00 (2006.01); B29C 48/03 (2019.01)

CPC (source: EP US)

B29C 45/60 (2013.01 - EP); B29C 45/62 (2013.01 - EP); B29C 48/507 (2019.01 - EP US); C23C 26/00 (2013.01 - EP); C23C 30/00 (2013.01 - EP US); B29C 48/03 (2019.01 - EP US)

Citation (search report)

See references of WO 03051610A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR

DOCDB simple family (publication)

WO 03051610 A1 20030626; DE 10161363 A1 20030626; EP 1472074 A1 20041103

DOCDB simple family (application)

EP 0214155 W 20021212; DE 10161363 A 20011214; EP 02787941 A 20021212