EP 0157093 B1 19871223 - TEETH FOR EXCAVATORS
Title (en)
TEETH FOR EXCAVATORS
Publication
Application
Priority
DE 3412405 A 19840403
Abstract (en)
[origin: US4710244A] The invention concerns the use of a wear resistant, temper resisting steel alloy of -0.30 to 0.40% carbon -1.0 to 1.60% silicon -0.50 to 0.80% manganese -2.0 to 2.6% chromium -maximum 0.025% phosphorus -maximum 0.025% sulfur -the remainder iron and limited contaminants. - The alloy is used as the work material for making dredger teeth forged in a close-die, especially suction dredger teeth, which teeth after the forging are heated to a temperature above the A3 temperature, are hardened in oil and tempered.
IPC 1-7
IPC 8 full level
C21D 1/18 (2006.01); C21D 6/00 (2006.01); C22C 38/00 (2006.01); C22C 38/18 (2006.01); E02F 9/28 (2006.01); E21B 10/46 (2006.01)
CPC (source: EP US)
C22C 38/18 (2013.01 - EP US); E02F 9/285 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
US 4710244 A 19871201; AT E31555 T1 19880115; DE 3412405 C1 19850620; DE 3561249 D1 19880204; EP 0157093 A2 19851009; EP 0157093 A3 19860102; EP 0157093 B1 19871223; ES 541810 A0 19880216; ES 8801710 A1 19880216; JP S60224759 A 19851109
DOCDB simple family (application)
US 92861586 A 19861104; AT 85100709 T 19850124; DE 3412405 A 19840403; DE 3561249 T 19850124; EP 85100709 A 19850124; ES 541810 A 19850401; JP 6927885 A 19850403