Electron Beam Paint Hardening with Inert Gas Atmosphere
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Solution Overview
Problem
Existing paint hardening devices using electron beams often generate ozone when the beam collides with oxygen, which can interrupt the hardening process and affect the quality of the paint application on curved or three-dimensional workpieces.
Innovation Solution
A paint hardening device and method that form an inert gas atmosphere in the electron-beam passing region within a storage chamber, using an electron beam emission portion and a gas supply system to prevent collisions between the electron beam and oxygen, thereby reducing ozone generation and ensuring consistent paint hardening on complex surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an electron beam is applied to harden paint on a workpiece, then the paint hardening efficiency is improved, but ozone is generated due to collision between the electron beam and oxygen
Solution Approach 1:
The patent applies the inert atmosphere principle by introducing an inert gas (such as nitrogen or argon) into the storage chamber to replace oxygen in the electron-beam passing region. This prevents the collision between electron beams and oxygen molecules, thereby eliminating ozone generation while maintaining efficient paint hardening. The inert gas atmosphere is maintained throughout the electron beam irradiation process.
2Adaptability or versatility
If the electron beam emission portion is moved relative to the workpiece to harden paint on curved surfaces, then the adaptability to complex workpiece shapes is improved, but the system complexity increases
Solution Approach 1:
The patent applies the dynamics principle by making the electron beam emission portion movable through a robot arm, enabling it to dynamically adjust its position and orientation to follow complex workpiece surfaces. This dynamic capability allows the system to handle various curved and three-dimensional shapes while maintaining controlled and consistent electron beam application.
Solution Approach 2:
The patent uses a robot arm as an intermediary device between the fixed storage chamber and the workpiece. The robot arm serves as a flexible mediator that can precisely position and move the electron beam emission portion, thereby simplifying the overall system architecture while achieving high adaptability to complex geometries.
3Object-generated harmful factors
If an inert gas atmosphere is formed in the electron-beam passing region to prevent ozone generation, then the harmful factor of ozone is eliminated, but the device complexity increases due to additional gas supply components
Solution Approach 1:
The patent merges the gas supply function with the existing storage chamber structure. The inert gas supply system is integrated into the chamber design, combining the atmosphere control function with the containment structure, thereby reducing overall system complexity while effectively preventing ozone generation.
Solution Approach 2:
The system is designed to automatically maintain the inert gas atmosphere through integrated gas supply and pressure control mechanisms. The chamber self-regulates the gas environment during electron beam operation, eliminating the need for complex external monitoring and adjustment systems.
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 solution effectively prevents ozone generation, allowing for reliable and uninterrupted paint hardening on three-dimensional workpieces by maintaining an inert gas atmosphere during the electron beam application, ensuring the quality and stability of the paint curing process.
Implementation Method 1
an electron beam emission portion (1) configured to emit an electron beam to harden the paint
Implementation Method 2
when the electron beam collides with oxygen at the time when the electron beam is applied to the paint from the electron beam emission portion, ozone might be generated
Data Source
AI summary
A paint hardening device is a device for hardening paint applied to a workpiece and includes an electron beam emission portion configured to emit an electron beam to harden the paint, and a storage chamber in which the electron beam emission portion is accommodated. The paint hardening device is configured to move the workpiece and the electron beam emission portion relative to each other while the electron beam is being applied to the paint from the electron beam emission portion in a state where an inert gas atmosphere is formed at least in an electron-beam passing region where the electron beam passes in the storage chamber, the electron beam being applied to the paint from the electron beam emission portion.