Global Patent Index - EP 0007883 B1

EP 0007883 B1 19820203 - PROCESS FOR THE HEAT TREATMENT OF DRAWN RODS OF BRASS CONTAINING LEAD

Title (en)

PROCESS FOR THE HEAT TREATMENT OF DRAWN RODS OF BRASS CONTAINING LEAD

Publication

EP 0007883 B1 19820203 (FR)

Application

EP 79420034 A 19790727

Priority

FR 7823196 A 19780731

Abstract (en)

[origin: EP0007883A1] 1. A process for thermal treating drawn brass rods essentially containing in addition to copper, from 30 to 42 % of Zinc, from 1.5 to 4.5 % of lead and also being able to contain up to 2.5 % of aluminium, up to 1.3 % of tin, from 0.03 to 0.1 % of arsenic, up to 0.1 % of iron, up to 0.01 % of silicon, characterized in that said rods are brought to a temperature of between 425 % C and 10 degrees C below the solidus temperature of the brass and preferably between 550 degrees C and 800 degrees C for a period of between 1/100 of a second and 10 minutes.

IPC 1-7

C22F 1/08; C22C 9/04

IPC 8 full level

C22F 1/08 (2006.01)

CPC (source: EP)

C22F 1/08 (2013.01)

Designated contracting state (EPC)

DE GB SE

DOCDB simple family (publication)

EP 0007883 A1 19800206; EP 0007883 B1 19820203; DE 2962050 D1 19820311; FR 2432558 A1 19800229; FR 2432558 B1 19811127

DOCDB simple family (application)

EP 79420034 A 19790727; DE 2962050 T 19790727; FR 7823196 A 19780731