Brake Disc Vent Coating Using Paint Flooding and Centrifugal Spin
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Solution Overview
Problem
Existing brake disc coating methods fail to adequately coat the internal ventilation ducts, leading to increased corrosion and reduced service life due to insufficient paint application.
Innovation Solution
A method involving centrifugal coating and flooding of internal ventilation ducts with liquid paint, combined with spinning and optional spray painting, ensures complete and uniform paint coverage, including drying processes to achieve consistent thickness and corrosion protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If spray painting is used to coat brake discs, then the outer surfaces can be easily coated, but the internal ventilation ducts are not sufficiently coated or not coated at all
Solution Approach 1:
The coating process is divided into two distinct stages: first, the brake disc is coated externally by spray painting; second, the internal ventilation ducts are flooded with paint separately. This segmentation allows each area to receive appropriate coating treatment, ensuring both outer surfaces and internal ducts are adequately protected.
Solution Approach 2:
The invention transitions from a single external coating approach to a two-dimensional coating strategy that includes both external spray painting and internal flooding. By adding the internal flooding dimension, the process achieves complete coverage of both accessible outer surfaces and inaccessible internal ventilation ducts.
2Manufacturing precision
If the brake disc is flooded with liquid paint, then complete coating of internal ventilation ducts is achieved, but excess paint material remains and must be removed
Solution Approach 1:
The flooding process is performed as a periodic, controlled action where paint is introduced into the internal ventilation ducts, allowed to coat the surfaces, and then excess paint is removed. This periodic application and removal cycle ensures complete coating while managing paint waste.
Solution Approach 2:
The excess paint is rapidly removed immediately after the flooding process, skipping the intermediate step of allowing paint to remain. This quick removal minimizes paint waste while ensuring the internal surfaces are adequately coated during the brief flooding period.
3Manufacturing precision
If the paint layer thickness increases in radii or near edges due to adhesive forces, then complete coverage is achieved, but the ventilation function may be impaired
Solution Approach 1:
The flooding process creates locally optimized paint layer thickness: sufficient coverage in the internal ventilation ducts to provide corrosion protection, while controlling the thickness to prevent ventilation impairment. The method allows different regions to have appropriately tailored coating characteristics.
Solution Approach 2:
The flooding process parameters (paint viscosity, flooding pressure, duration) are optimized to achieve the right balance between complete coverage and maintaining ventilation function. By controlling these parameters, the paint layer thickness is regulated to protect against corrosion without blocking the ventilation ducts.
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
Ensures complete and uniform paint coverage of internal ventilation ducts, enhancing corrosion protection and extending the service life of brake discs without impairing their ventilation function.
Implementation Method 1
The key here is that the brake disc is spun during or after flooding the internal ventilation ducts. This spun action ensures that the liquid paint penetrates even into narrow or hard-to-reach areas of the internal ventilation ducts.
Implementation Method 2
The inventive combination of flooding with paint and spun coating the brake discs ensures that the liquid paint is distributed over the entire length of the internal ventilation ducts, ensuring complete coating of the internal ventilation ducts with paint and removing excess paint material.
Implementation Method 3
A method involving centrifugal coating and flooding of internal ventilation ducts with liquid paint, combined with spinning and optional spray painting, ensures complete and uniform paint coverage, including drying processes to achieve consistent thickness and corrosion protection.
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3
AI summary
The invention relates to a method for coating brake discs (1) having internal ventilation ducts (4). The internal ventilation ducts (4) of a brake disc (1) are flooded with liquid paint (7). The brake discs (1) are centrifugally coated with the internal ventilation ducts (4) flooded with paint (7).