A kind of High-strength high-plasticity copper alloy and preparation method thereof

A kind of High-strength high-plasticity copper alloy and preparation method thereof

  • CN 102,560,192 B
  • Filed: 12/31/2011
  • Issued: 11/23/2016
  • Est. Priority Date: 12/31/2011
  • Status: Active Grant
First Claim
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1. the preparation method of a High-strength high-plasticity copper alloy, it is characterised in that:

  • comprise the steps;

    (1) dispensing;

    weigh raw material, the metal ingredient and the percentage by weight thereof that contain in described raw material are as follows;

    Ni, 1.5~

    4.5%;

    Si, 0.5~

    0.8%;

    Ce, 0.01~

    0.3%;

    Cr, 0.01~

    0.1%;

    Surplus is copper and inevitable impurity;

    (2) vacuum melting;

    the raw material weighed in step (1) is put in vacuum smelting equipment, vacuum be (1~

    5) ×

    10-2Pa, temperature is vacuum melting under conditions of 1250~

    1300 DEG C, forms copper alloy melt;

    (3) casting;

    the copper alloy melt obtained in step (2) is cast into slab ingot;

    (4) cold rolling;

    the slab ingot obtained in step (3) is cold rolled to the band that thickness is 0.8~

    2mm;

    (5) solution treatment;

    as-cold reduced band in step (4) is heated to 850~

    950 DEG C of insulations 1~

    3 hours, the soonestSpeed cooling by water is to room temperature;

    (6) secondary cold-rolling;

    the band becoming thickness to be 0.15~

    0.3mm the strap cold rolling obtained in step (5);

    (7) Ageing Treatment;

    by the band of acquisition in step (6) at a temperature of 420~

    500 DEG C, Ageing Treatment 1~

    5 hours.

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