Phosphor copper strip processing device capable of improving surface grain uniformity

By combining a pretreatment zone, a fine treatment zone, and a surface finishing zone, and utilizing nitrogen atomization, compressed air gradient cooling, and a multi-roller combination, the problems of uneven cooling and surface contamination of phosphor bronze strips are solved, achieving uniform surface texture and high gloss, making it suitable for electronic products.

CN121423402APending Publication Date: 2026-01-30ANHUI CHUJIANG HIGH PRECISION COPPER STRIP CO LTD
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Patent Information

Application Number
CN202511510596.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-22
Publication Date
2026-01-30

AI Technical Summary

Technical Problem

Existing phosphor bronze strip processing equipment uses a single cooling method, resulting in uneven cooling on both sides of the strip, differences in grain size distribution, and the formation of hidden surface textures. Furthermore, the accumulated cooling liquid is not centrally discharged, which can easily lead to secondary surface contamination. The lack of targeted pretreatment and polishing processes makes it difficult to meet the standards for surface cleanliness and gloss.

Method used

The process employs a combination of pretreatment zone, fine treatment zone, and surface finishing zone, including a roughing mill, a hot surface treatment unit, a rapid cooling unit, a finishing mill, and a polishing unit. It utilizes nitrogen atomization and gradient cooling with compressed air, combined with a power-driven pinch cooling roller group, a wiping roller group, and a polishing roller group, to achieve uniform cooling and fine polishing of the strip surface.

Benefits of technology

It achieves uniformity and cleanliness of the strip surface texture, avoids uneven cooling and surface contamination, and improves gloss and surface quality, making it suitable for high-end electronic product applications.

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Abstract

The invention discloses a phosphor copper strip machining device capable of improving surface grain uniformity. The phosphor copper strip machining device comprises a pretreatment area, a precision treatment area and a surface finishing area. The pretreatment area comprises a roughing mill, a heat surface treatment unit and a rapid cooling unit and is used for carrying out preliminary shaping and impurity pretreatment on the surface of the strip; the fine treatment area comprises an intermediate rolling mill, another group of heat surface treatment unit and a rapid cooling unit, gradient cooling and hollow roller contact type cooling are adopted in the rapid cooling unit, nitrogen atomization spraying cooling and clean compressed air purging temperature control are achieved through an upper and lower bidirectional 45-degree fan-shaped spray head, accumulated liquid is discharged in cooperation with a grid hollowed-out partition plate and a slope bottom plate, and the cooling efficiency is improved. The grain defects are reduced from the source, pretreatment and cleaning are conducted through a ceramic fiber brush and an engaged composite cotton piece, mirror gloss is achieved through graded polishing and chipping removal through a suction fan, the uniform cooling mode can guarantee the grain size to be uniform, fine defects can be eliminated through polishing, and the effect that the strip does not have obvious irregular grains through cooperation of the two modes is achieved.
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