Anti-Corrosion Wax Mist Generator for Vehicle Cavity Coating
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Solution Overview
Problem
Existing methods for applying anti-corrosion wax to complex cavity geometries, such as vehicle body parts, face challenges in reaching all surfaces due to spray shadows and require excessive energy and wax quantities, with flooding methods being inefficient and difficult to manage.
Innovation Solution
The method involves generating a protective agent mist using a mist generator, which is supplied into the cavity as a fine droplet atmosphere, allowing for targeted deposition on inner walls, including hard-to-reach areas, using a two-substance nozzle and controlled gas flow to prevent direct impact and ensure homogeneous distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If spraying method is used to apply anti-corrosion wax, then the application process is simple, but spray shadow regions cannot be reached in complex geometries
Solution Approach 1:
The patent changes the physical parameters of the protective agent by reducing droplet size to fine mist levels (average diameter 1-10 μm) and controlling deposition velocity (≤1 m/s). This transformation from coarse spray to fine mist enables the protective agent to penetrate complex geometries and reach spray shadow regions while maintaining complete surface coverage.
Solution Approach 2:
The patent introduces a mist generator as an intermediary device between the protective agent reservoir and the cavity surface. This intermediary atomizes the protective agent into fine droplets and controls their deposition, enabling reliable coverage of complex geometries that cannot be reached by direct spraying.
2Reliability
If flooding method is used to apply anti-corrosion wax, then complete coverage is achieved, but large amounts of energy and protective wax are required
Solution Approach 1:
The patent changes the physical state parameters of the protective agent by atomizing it into fine droplets with controlled velocity. This mist form deposits as a thin, homogeneous layer that provides complete coverage without the excessive material consumption associated with flooding methods.
Solution Approach 2:
The patent replaces the mechanical flooding process with a controlled mist deposition system. Instead of forcing large volumes of liquid protective agent into the cavity, the system uses atomized droplets that naturally distribute and deposit uniformly, significantly reducing material consumption.
3Reliability
If flooding method is used to apply anti-corrosion wax, then coverage is achieved, but excess protective wax must be removed
Solution Approach 1:
The patent changes the deposition parameters by controlling droplet size and velocity to achieve self-limiting deposition. The fine mist deposits as a thin, uniform layer that does not require removal, eliminating the complex cleanup processes needed after flooding methods.
4Ease of operation
If spraying method is used to apply anti-corrosion wax, then application is straightforward, but constricting geometries cannot be reached
Solution Approach 1:
The patent changes the physical parameters by reducing droplet size to 1-10 μm and controlling deposition velocity to ≤1 m/s. These parameter changes enable the protective agent mist to penetrate constricting geometries and reach previously inaccessible surfaces while maintaining ease of operation through automated mist generation.
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 allows for reliable and efficient coverage of inner surfaces with a low amount of protective agent, achieving a homogeneous and stable anti-corrosion layer with improved cycle times and heat stability, even in constricting geometries.
Implementation Method 1
anti-corrosion wax or a wax-based anti-corrosion agent is brought into an atomized form (protective agent mist) by means of a mist generator
Implementation Method 2
The protective agent mist is deposited on inner walls of the cavity and forms an anti-corrosion agent layer here
Implementation Method 3
Said droplets are atomized to a sufficiently small size in order to be able to be suspended in the surrounding air
Data Source
AI summary
A method for covering inner walls of a cavity with a protective layer made of anti-corrosion wax, in particular for use on vehicle bodies and add-on parts for vehicle bodies. Anti-corrosion wax is brought into an atomized form (protective agent mist) by a mist generator and supplied through an outlet opening to the cavity to be preserved. The protective agent mist is deposited on inner walls of the cavity and forms an anti-corrosion agent layer.