Aqueous Metal Shaping Composition for Corrosion Prevention
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Solution Overview
Problem
Existing metal shaping compositions lack sufficient anticorrosive properties, leading to oxidation of metal substrates during shaping, which can result in undesirable thinning or breakage of metal products.
Innovation Solution
Aqueous metal shaping compositions comprising a film-forming lubricant, a polymeric binder, a solid lubricant, and a corrosion inhibitor, which can be solubilized in water, are applied to metal substrates to prevent corrosion and facilitate shaping processes like bending, drawing, and hydroforming without removing metal substrate material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If more pressure is applied to the metal blank to limit material flow and prevent wrinkles, then wrinkle formation is reduced, but the metal piece becomes too thin and breaks
Solution Approach 1:
The patent introduces a lubricant composition as an intermediary substance between the metal blank and the forming process. This lubricant layer mediates the interaction between the metal and the forming tools, enabling material flow control without excessive pressure application. The lubricant composition contains specific additives that facilitate controlled deformation while preventing both wrinkle formation and excessive thinning.
2Ease of operation
If traditional metal shaping compositions are used to facilitate metal flow, then shaping is enabled, but sufficient anticorrosive properties are not provided
Solution Approach 1:
The patent merges multiple functions into a single lubricant composition. It combines metalworking lubricant properties (facilitating metal flow and shaping) with anticorrosive properties (protecting metal from oxidation) in one integrated formulation. The composition includes lubricants for shaping capability and corrosion inhibitors for protection, unified in a single application.
Solution Approach 2:
The lubricant composition is a composite material containing multiple functional components: base lubricants for metal flow, additives for extreme pressure resistance, and corrosion inhibitors for oxidation protection. This composite formulation provides both shaping facilitation and corrosion prevention simultaneously.
3Ease of operation
If organic solvent-based compositions are used for metal shaping, then effective lubrication is achieved, but safety concerns and environmental issues arise
Solution Approach 1:
The patent changes the fundamental parameter of the lubricant base from organic solvents to water. This parameter change transforms the composition from flammable and environmentally harmful to safe and environmentally friendly. The water-based formulation maintains lubrication effectiveness through carefully selected lubricants and additives while eliminating the harmful properties of organic solvents.
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
The compositions effectively prevent metal corrosion, maintain metal integrity, and ensure correct form and thickness of shaped products, enhancing their durability and resistance to corrosion, while being safer and more efficient than traditional organic solvent-based compositions.
Implementation Method 1
a film forming lubricant capable of being solubilized into water in dispersible or emulsifiable form and which softens at a temperature of about 80 to about 200° C.
Implementation Method 2
these metal shaping compositions do not provide sufficient anticorrosive properties
Data Source
AI summary
The present invention provides metal shaping compositions and processes for using same for shaping metal substrates. Specifically, the metal shaping composition discussed herein are environmentally-friendly, water-containing composition which provide excellent lubricity under metal shaping process conditions while also providing excellent rust protection. The metal shaping compositions discussed herein contain (i) a film-forming lubricant capable of being solubilized into water in dispersible or emulsifiable form and which softens at a temperature of about 80 to about 200° C.; (ii) a film forming polymeric binder capable of being solubilized into water in dispersible or emulsifiable form; (iii) a solid lubricant capable of being solubilized into water in dispersible or emulsifiable form; and (iv) a corrosion inhibitor.