Casting-milling process method for manufacturing copper and copper alloy band

Abstract

The invention relates to a processing method for copper and copper alloy strip, which pertains to sheet metal strip casting, heat-rolling and machining technology. Specifically, the invention adopts continuous casting, hot rolling, thermomechanical treatment and machining principle and subjects band of horizontal continuous casting and downward continuous casting to heat preservation and samming, rapidly cooling after directly hot-rolling, on-line surface milling and rolling to built-up coil. Rolling is operated under the condition of exceeding recrystallization temperature and nitrogen protection. In the rolling, dynamic recrystallization of band structure takes place. The invention provides photo-quality and high-accuracy blank for cold rolling of end product.

Description

Technical field:

[0001] The invention relates to a metal strip processing method, in particular to a casting and rolling processing method for manufacturing copper and copper alloy strips. Background technique:

[0002] The manufacturing methods of copper and copper alloy strips in the prior art mainly include semi-continuous casting and cold-rolling method and ingot hot-rolling method, but the traditional two methods all have many processes, low yield and low strip manufacturing efficiency. High cost and so on. The first semi-continuous casting and cold-rolling method is to send the semi-continuous casting strip billet into a two-roll or four-roll mill for cold rolling after double-sided milling. Since the rolling is carried out at the recrystallization temperature, the rolling Defects such as poor plastic deformation ability of the as-cast structure and loose structure caused by a large number of grain fractures during rolling cannot be eliminated in the final heat treatm...

Examples

Embodiment Construction

[0034] see figure 1 , figure 2 , In the figure: 1 is the continuous casting furnace, 2 is the crystallizer, 3 is the insulation cover, 4 is the strip mill, 5 is the water bath channel, 6 is the milling machine, 7 is the strip billet, and 8 is the coiler. According to a kind of cast-rolling processing method of manufacturing copper and copper alloy strip material provided by the present invention, comprises the following steps:

[0035] The first step, strip continuous casting, heat preservation, and uniform temperature treatment step: use a continuous casting machine with adjustable strip temperature to continuously cast copper and copper alloys into strips 7, and then exit the mold of the continuous casting machine under a protective atmosphere The strip blank 7 is subjected to heat preservation and uniform temperature treatment, so that the strip blank 7 is above the recrystallization initiation temperature of the corresponding material, preferably at a temperature of 450°...

Technical field:

[0001] The invention relates to a metal strip processing method, in particular to a casting and rolling processing method for manufacturing copper and copper alloy strips. Background technique:

[0002] The manufacturing methods of copper and copper alloy strips in the prior art mainly include semi-continuous casting and cold-rolling method and ingot hot-rolling method, but the traditional two methods all have many processes, low yield and low strip manufacturing efficiency. High cost and so on. The first semi-continuous casting and cold-rolling method is to send the semi-continuous casting strip billet into a two-roll or four-roll mill for cold rolling after double-sided milling. Since the rolling is carried out at the recrystallization temperature, the rolling Defects such as poor plastic deformation ability of the as-cast structure and loose structure caused by a large number of grain fractures during rolling cannot be eliminated in the final heat treatm...

Examples

Embodiment Construction

[0034] see figure 1 , figure 2 , In the figure: 1 is the continuous casting furnace, 2 is the crystallizer, 3 is the insulation cover, 4 is the strip mill, 5 is the water bath channel, 6 is the milling machine, 7 is the strip billet, and 8 is the coiler. According to a kind of cast-rolling processing method of manufacturing copper and copper alloy strip material provided by the present invention, comprises the following steps:

[0035] The first step, strip continuous casting, heat preservation, and uniform temperature treatment step: use a continuous casting machine with adjustable strip temperature to continuously cast copper and copper alloys into strips 7, and then exit the mold of the continuous casting machine under a protective atmosphere The strip blank 7 is subjected to heat preservation and uniform temperature treatment, so that the strip blank 7 is above the recrystallization initiation temperature of the corresponding material, preferably at a temperature of 450°...

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