Copper Strip Continuous Casting and Cold Rolling Process
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Solution Overview
Problem
Current methods for producing copper or copper alloy metal strips are economically unsustainable for capacity increases, due to high operating and investment costs associated with traditional casting and hot rolling processes.
Innovation Solution
Implementing a vertical and/or horizontal continuous strip casting process, followed by cold rolling, annealing, pickling, washing, and drying, without the need for ingot casting or hot rolling, allowing for flexible production quantities and reduced system costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional ingot casting and hot rolling processes are used, then metal strips can be produced, but investment costs and operating costs are very high
Solution Approach 1:
The invention extracts and eliminates the hot rolling step from the traditional manufacturing process. By using cold rolling instead of hot rolling, the patent removes the need for heating facilities and hot rolling equipment, significantly reducing system investment costs and operating costs while maintaining the ability to produce metal strips with required specifications
Solution Approach 2:
The invention changes the temperature parameter from hot rolling conditions to cold rolling conditions. The cold rolling process operates at ambient or controlled low temperatures, eliminating the need for high-temperature heating equipment and reducing energy consumption, thereby lowering both investment and operating costs
2Ease of manufacture
If traditional hot rolling process is used, then metal strips can be produced, but operating costs are very high
Solution Approach 1:
The invention extracts and eliminates the heating step from the manufacturing process. By implementing cold rolling instead of hot rolling, the patent removes the need for continuous heating during the rolling operation, significantly reducing energy consumption and operating costs
Solution Approach 2:
The invention changes the temperature parameter from hot rolling conditions to cold rolling conditions. The cold rolling process operates at ambient or controlled low temperatures, eliminating the need for high-temperature heating equipment and reducing energy consumption, thereby lowering both investment and operating costs
3Productivity
If capacity is increased to 70,000 t/year, then market demand can be met, but current costs become economically unsustainable
Solution Approach 1:
The invention implements a continuous casting and continuous cold rolling process, eliminating the discontinuous heating and hot rolling steps. This continuous process allows for high production capacity while using simpler, more cost-effective equipment compared to traditional batch hot rolling processes
Solution Approach 2:
The invention extracts and eliminates the heating facilities from the production line. By using cold rolling, the patent can achieve high production capacity without the substantial investment required for large-scale heating and hot rolling equipment, making high-capacity production economically sustainable
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces investment and operating costs while increasing capacity, allowing for efficient production of copper strips with improved microstructure refinement through temperature-controlled cold rolling and annealing processes.
Implementation Method 1
the copper strip is lubricated with oil on the inlet side and cooled with cold or cryogenic inert gases on the outlet side
Implementation Method 2
either in a hood annealing device in the form of a collar ring or in a continuous annealing process
Data Source
Figure 1
Figure 2~5
Figure 6~9
AI summary
Disclosed are a method and a production line for manufacturing metal strips made of copper or copper alloys by means of casting and rolling. In order to lower the investment cost and operating expenses therefor, the melt (2) is cast into a copper strip (4) in a vertical and/or horizontal continuous strip casting process (3), and the hot copper strip (4) is cleaned by milling (5) the top and bottom face (5a, 5b) thereof, is subjected to a cold rolling process (6), and is prepared for shipping, or is subjected to an inspection (12) and then prepared for shipping after being annealed (7), pickled (8), washed (9), dried (10), and optionally temper rolled (11).