EP 1377411 B1 20070307 - SUPPORT BODIES AND METHOD FOR IMPROVING WEAR AND TEAR ON SUPPORT BODIES IN LARGE-SCALE GRINDERS
Title (en)
SUPPORT BODIES AND METHOD FOR IMPROVING WEAR AND TEAR ON SUPPORT BODIES IN LARGE-SCALE GRINDERS
Title (de)
STÜTZKÖRPER SOWIE VERFAHREN ZUR VERBESSERUNG DER VERSCHLEISSSITUATION VON STÜTZKÖRPERN BEI BREITSCHLEIFMASCHINEN
Title (fr)
ELEMENTS D'APPUI ET PROCEDE POUR AMELIORER L'ETAT D'USURE D'ELEMENTS D'APPUI DE RECTIFIEUSES LARGES
Publication
Application
Priority
- CH 0200198 W 20020409
- CH 6782001 A 20010411
Abstract (en)
[origin: WO02083362A1] The invention relates to a method for improving wear and tear on support bodies (54) for plates or grinding belts in large-scale grinders (1). The support body (54) has a base body (18), onto which an abrasion-resistant primary layer of at least 0.3 mm thickness is applied using a thermal spraying process. This is configured as an inhomogeneous layer with an oxide entrapment of a specific porosity. If the support body (54) is a roll for the forward feed unit (20, 28), the roll body is roughened and a primer and the primary layer are applied using a thermal spraying process. Approximately 50 % of the primary layer consists of chromium steel, in particular 13 % chromium steel and an abrasion-resistant hard material and said primary layer provides a coarse surface with good grip that is resistant to wear and tear. If the support body (54) is a grinding-belt contact roll (9, 9'), the latter is polished after the thermal spraying process. If the support body (54) is a grinding belt shoe (50), the base body (18) is roughened and an adhesive layer and then the primary layer are applied in a thermal spraying process. The wear-resistant primary layer is polished to create a smooth surface and the layer construction is configured to produce a high degree of slip.
IPC 8 full level
B24B 21/18 (2006.01); C23C 4/02 (2006.01); C23C 4/06 (2016.01); C23C 4/131 (2016.01)
CPC (source: EP US)
B24B 21/18 (2013.01 - EP US); C23C 4/02 (2013.01 - EP US); C23C 4/06 (2013.01 - EP US); C23C 4/131 (2016.01 - EP US)
Citation (examination)
- DE 8814128 U1 19890309
- US 5644828 A 19970708 - SAILER COLIN [DE], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02083362 A1 20021024; AT E355932 T1 20070315; CN 1246122 C 20060322; CN 1509221 A 20040630; DE 50209658 D1 20070419; EP 1377411 A1 20040107; EP 1377411 B1 20070307; US 2004147207 A1 20040729
DOCDB simple family (application)
CH 0200198 W 20020409; AT 02708125 T 20020409; CN 02808030 A 20020409; DE 50209658 T 20020409; EP 02708125 A 20020409; US 47462304 A 20040319