A Direct Forming Technology of Copper Alloy Special-Shaped Strip by Temperature-controlled Casting Continuous Casting

Abstract

The invention discloses a temperature-controlling, mold-casting and continuous casting direct molding technology of a copper alloy special-shaped strip. The direct molding technology comprises the following steps that proportioning is carried out, and specifically oxygen-free copper, silicon, manganese, tin, zinc, titanium, molybdenum, cobalt, tungsten, yttrium, nano wear-resistant particles and transition metal are weighed and mixed to obtain mixed proportioned materials; a three-dimensional geometric model comprising a smelting crucible, a casting mold, a special-shaped strip and a water-cooled copper sleeve is established by adopting ProE software, and by adopting ProCast software, grid division is carried out on the model and simulation calculation is carried out on the continuous casting steady-state temperature field of the special-shaped strip; and the copper alloy special-shaped strip is prepared by adopting the temperature-controlling, mold-casting and continuous casting technology, and the temperature gradient, the solidification speed, the continuous casting speed and the mold casting temperature in the continuous casting process are controlled to regulate the tissue structure and the surface quality. According to the direct molding technology, the technological process is short, the production cost is low, the product surface quality is good, and the performance isexcellent.

Description

technical field [0001] The invention relates to the technical field of continuous casting, in particular to a temperature-controlled mold continuous casting direct forming process for copper alloy special-shaped strips. Background technique [0002] Copper alloy special-shaped strip processing is a new industry in our country, with great market potential and broad development prospects. With the rapid development of the electronics industry, integrated circuits have put forward higher requirements for the preparation technology of copper alloy special-shaped strips. At present, copper alloy special-shaped strips are mainly produced by the following three traditional methods: one is the use of "semi-continuous casting - homogenization annealing - hot rolling - solution quenching - strip milling - cold rolling - annealing - finishing rolling - aging "process; the second is the process of "upward continuous casting billet-continuous extrusion-rough rolling-annealing-intermedia...

AI Technical Summary

Problems solved by technology

At present, copper alloy special-shaped strips are mainly produced by the following three traditional methods: one is the use of "semi-continuous casting billet-homogenizing annealing-hot rolling-solution quenching-strip milling-cold rolling-annealing-finish rolling-aging "process; the second is the process of "upward continuous casting billet-continuous extrusion-rough rolling-annealing-intermediate rolling-annealing-finish rolling-aging"; the third is the process of "continuous casting strip billet-cold rolling-intermediate annealing", It also includes peeling, pickling and other processes. These methods have inhomogeneous cast slab structure, horizontal columnar grain structure, many pore defects, long process flow, low yield, high cost and difficult product performance to meet the use requirements, etc. series of questions