Method for producing galfan sheet products for deep drawing

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By precisely controlling the temperature and speed of the strip steel, the problems of uneven coating thickness and performance degradation in the production of galfan thin plates were solved, thus achieving high-quality galfan thin plate production.

CN119609569BActive Publication Date: 2026-07-24天津市新宇彩板有限公司

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Patent Information

Application Number: CN202411770856.7
Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner
Filing Date: 2024-12-04
Publication Date: 2026-07-24
Estimated Expiration: 2044-12-04

Application Information

Patent Timeline

04 Dec 2024

Application

CN202411770856.7

24 Jul 2026

Publication

CN119609569B

IPC: B23P15/00

CPC: B23P15/00; Y02P10/20

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Application Domain

Process efficiency improvement

Technology Topics

Strip steel Air knife

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AI Technical Summary

Technical Problem

The current problems of uneven coating thickness and performance degradation in the production of galfan thin plates are mainly due to uneven temperature and speed control.

Method used

By precisely controlling the temperature and speed of the strip, including the heating and holding temperature range and speed in the annealing furnace, and the elongation control in the finishing mill, combined with cooling and scraping off excess zinc after galvanizing, the uniformity of coating thickness and stable performance are ensured.

Benefits of technology

This enables rapid and balanced production of galfan thin plates, avoiding problems such as uneven coating thickness and overall performance degradation, and improving product quality.

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Abstract

The application discloses a production method of a galfan sheet product for deep drawing, and the method comprises the following steps: inputting a strip steel from an entrance of a loop car according to a preset initial speed; pretreating the strip steel, feeding the strip steel into an annealing furnace according to different speeds according to different types, and heating and keeping temperature in different temperature ranges in the annealing furnace; feeding the strip steel into a zinc pot, and galvanizing the strip steel after annealing; scraping off the excess zinc liquid by using an air knife, and cooling the strip steel after galvanizing; and performing finishing and tension leveling after cooling; and coiling the sheet after tension leveling under an outlet loop. The application realizes fast and balanced production of the product through the control of the temperature and the speed in the whole production control.

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