Title: Process for preparing Cu-Cr-Zr alloy slat
Application Number: 200610096326 Application Date: 2006.09.20
Publication Number: 1928145 Publication Date: 2007.03.14
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C22F1/00;C21D9/52;C21D8/00;C21D11/00;B21B37/00
Applicant(s) Name: Suzhou Research Institute of Nonferrous Metals Pro Address:
Inventor(s) Name:
Attorney & Agent: chenzhong hui yaojiao yang
Abstract:
    The present invention provides one kind of Cu-Cr-Zr alloy band making process. The making process includes the following steps: 1. milling the surface of alloy ingot and soaking treatment under protection atmosphere in a resistance furnace, 2. hot rolling in the total deformation of 15-80 wt% and finishing temperature of 600 deg.c, 3. solid solution treatment under protection atmosphere in a resistance furnace and quenching, 4. cold deforming, 5. ageing treatment under protection atmosphere in a resistance furnace and quenching, and 6. deformation treatment of the alloy band in the deformation amount of 1-50 wt% and speed of 15-25 rpm. The product has tensile strength higher than 570 MPa, conductivity higher than 80 %IACS, elongation higher than 7 % and hardness greater than 175HV, and can meet the requirement for use as lead frame in LSI.
Time: 13