Simultaneous Surface Treatment and Heat Treatment of Metal Substrates
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Solution Overview
Problem
Conventional metal processing techniques often result in suboptimal characteristics of processed metal products due to sequential performance of surface treatment and heat treatment processes, which can degrade the surface of metal substrates and reduce performance indicators like bond durability and corrosion resistance.
Innovation Solution
Simultaneously performing surface treatment and solution heat treatment or continuous annealing operations using super-heated steam on elongated metal substrates, such as aluminum alloy sheets, to create a surface layer with inhibiting materials like Mn, Ce, and Mo, while applying flame pyrolysis and induction heating, thereby enhancing the metal's properties without degrading the surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If surface treatment is performed followed by solution heat treatment, then the surface treatment is applied to the metal substrate, but the surface treatment is degraded or destroyed by the subsequent heat treatment
Solution Approach 1:
The patent combines surface treatment and solution heat treatment into a single simultaneous operation. The metal substrate is subjected to both surface treatment (using superheated steam with inhibitors) and solution heat treatment (heating to solution temperature) at the same time, eliminating the sequential process where heat treatment would degrade the surface treatment. This merging of operations allows both treatments to be applied without one compromising the other.
Solution Approach 2:
The patent applies surface treatment inhibitors and superheated steam to the metal substrate before completing the solution heat treatment process. By preliminarily applying the surface treatment components during the heating process, the surface layer is formed or enhanced before the substrate reaches full solution temperature, ensuring the surface treatment is not degraded by subsequent heat treatment steps.
2Manufacturing precision
If processes are performed sequentially, then each process can be optimized independently, but the overall processing time increases and productivity decreases
Solution Approach 1:
The patent merges surface treatment and solution heat treatment into a single simultaneous operation, eliminating multiple sequential steps. The metal substrate undergoes both treatments in one continuous process using superheated steam injection during heating, significantly reducing total processing time while maintaining independent optimization of both treatment parameters through controlled steam injection and temperature management.
3Device complexity
If conventional sequential processing is used, then equipment requirements are simpler, but additional processing steps are needed to achieve optimal characteristics
Solution Approach 1:
The patent employs a multi-functional approach where the solution heat treatment furnace simultaneously performs both surface treatment and solution heat treatment. Superheated steam injection systems are integrated into the existing heat treatment equipment, allowing the same furnace to provide both the heating function for solution treatment and the steam-based surface treatment function, eliminating the need for separate dedicated equipment for each process.
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 improves the bond durability, hardness, and corrosion resistance of metal products by creating a stable surface layer with specific phases like boehmite, diaspore, or corundum, maintaining the benefits of both treatments without additional processing steps.
Implementation Method 1
the solution heat treatment operation or continuous annealing operation and the surface treatment operation can be performed simultaneously using super-heated steam while also heating the elongated metal substrate
Implementation Method 2
The surface treatment process and the solution heat treatment process or continuous annealing operation can be performed simultaneously using super-heated steam while also heating the elongated metal substrate, for example, using flame pyrolysis
Implementation Method 3
The surface treatment process and the solution heat treatment process or continuous annealing operation can be performed simultaneously using super-heated steam while also heating the elongated metal substrate, for example, using flame pyrolysis and induction heating
Implementation Method 4
The elongated metal substrate can be subjected to a quenchant that can include water
Data Source
AI summary
Methods and metal products are described for simultaneously performing a solution heat treatment operation or continuous annealing operation and surface treatment operation using super-heated steam to produce a processed metal product. An elongated metal substrate can be subjected to a solution heat treatment operation or a continuous annealing operation. Additionally, the elongated metal substrate can be subjected to a surface treatment operation. The solution heat treatment operation or continuous annealing operation and the surface treatment operation can be performed simultaneously using super-heated steam to produce the processed metal product.