Production process for hot-dipped copper-zinc alloy plate

Abstract

The invention discloses a production process for a hot-dipped copper-zinc alloy plate, wherein the hot-dipped copper-zinc alloy plate is composed of a steel plate base material and a copper-zinc alloy coating. The production process comprises base plate cleaning treatment, annealing treatment, copper-zinc alloy plating solution preparation, hot-dipping and after-treatment, wherein the steel plate base material is a cold-continuous-rolling carbon steel base plate, the copper-zinc alloy coating comprises 15-25% of Cu, 0.3-0.5% of Si, 0.2% of Re, 0.5% of Mg and 73.8-84% of Zn, a copper-zinc alloy is heated by a 500kW inductor and stirred during preparation of copper-zinc alloy plating solution, and the temperature of the copper-zinc alloy solution is kept at 890-920 DEG C; the cold-continuous-rolling carbon steel base plate is heated to be above 700 DEG C, and then annealed and recrystallized in an annealing furnace, then is subjected to surface reduction activation in a high-hydrogen atmosphere, so that the cold-continuous-rolling carbon steel base plate is combined well with the copper-zinc alloy to have a reaction, the annealing reduction time of the cold-continuous-rolling carbon steel base plate in the annealing furnace is 100-300min, and the content of hydrogen in a hydrogen reducer in the annealing furnace is 40-60%. The production process disclosed by the invention has the beneficial effects of simple process, convenient operation, good copper-zinc alloy coating effect, approximately gold colour and low machining cost and can be popularized easily.

Description

technical field [0001] The invention relates to the technical field of metal alloy material production, in particular to a production process of a hot-dip copper-zinc alloy plate. Background technique [0002] At present, the world economy is developing rapidly, people's living standards are improving day by day, and people's requirements for life are getting higher and higher. Now a popular color is called "local gold", and many merchants make their products into so-called "local gold". This color, but for metals, the "tyrant gold" on the market is basically made of copper-zinc alloys. The electroplating process of copper-zinc alloys is relatively complicated, and the wastewater generated during the electroplating process will cause considerable damage to the environment. Serious pollution does not advocate the use of electroplating process, so a new technology is urgently needed to solve the above technical defects. Contents of the invention [0003] The invention provi...

AI Technical Summary

Problems solved by technology

[0002] At present, the world economy is developing rapidly, people's living standards are improving day by day, and people's requirements for life are getting higher and higher. Now a popular color is called "local gold", and many merchants make their products into so-called "local gold". This color, but for metals, the "tyrant gold" on the market is basically