Adjustable Plasma Extension Gun for Interior Thermal Spraying
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Solution Overview
Problem
Current plasma spray guns are limited in their ability to efficiently apply thermal spray coatings to components with varied surfaces and shapes, requiring multiple guns and frequent reconfiguration, which increases production time and maintenance costs, and can struggle to access interior features due to fixed positions and power limitations.
Innovation Solution
A universal plasma spray extension gun system with an adjustable plasma extension arm that can extend and retract to accommodate different power needs and access interior features without reprogramming the robotic arm, allowing for versatile and efficient application of thermal spray coatings across various components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple plasma spray guns are used to coat components with varied surfaces and shapes, then coating versatility is improved, but device complexity and production time increase due to frequent gun substitution and reconfiguration
Solution Approach 1:
The plasma spray gun is equipped with an adjustable extension arm that can be repositioned to different locations along the gun body, allowing a single gun to perform multiple coating functions for various surface configurations. This eliminates the need for multiple specialized guns while maintaining versatility across different component geometries.
Solution Approach 2:
The extension arm is designed to be dynamically adjustable during the coating process, allowing operators to reposition it to access different areas of components with varied surfaces and shapes. This dynamic adaptability replaces the static limitation of fixed-position guns without requiring gun substitution.
2Adaptability or versatility
If multiple plasma spray guns are used for different power modes, then power adaptability is improved, but loss of time increases due to repeated spray gun substitution and calibration
Solution Approach 1:
A single plasma spray gun is designed to handle multiple power modes (e.g., 75 kW and other power levels) by adjusting the extension arm position, eliminating the need to substitute guns when changing power requirements. This universal design maintains power adaptability while preventing time loss from reconfiguration.
3Manufacturing precision
If plasma spray guns are positioned at fixed contact distances, then manufacturing precision is maintained, but adaptability to different component configurations decreases
Solution Approach 1:
The extension arm provides a dynamic positioning mechanism that allows the plasma spray gun to maintain precise contact distance for each specific component configuration. By adjusting the arm position, the system adapts to different component geometries while preserving the required manufacturing precision for coating application.
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 system enhances production efficiency and accessibility by enabling the plasma spray gun to adapt to different power levels and reach interior components, reducing the need for multiple guns and reconfiguration, thus lowering production time and costs while improving coating application precision.
Implementation Method 1
plasma spraying is typically performed by a plasma torch or gun, which uses a plasma jet to heat or melt the feedstock before propelling it toward a desired surface
Implementation Method 2
The hot gas stream entrains the feedstock to which it transfers heat and momentum. The heated feedstock is further impacted onto the surface
Implementation Method 3
The heated feedstock is further impacted onto the surface, where it adheres and solidifies, forming a thermally sprayed coating composed of thin layers or lamellae
Data Source
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AI summary
Universal plasma spray extension gun systems and devices for thermal spraying of machine components are disclosed. In one embodiment, a plasma gun extension system includes: a plasma extension arm (110); an arm connector (122) disposed on the plasma extension arm (110) and configured to connect to an adjustable plasma spray gun apparatus (120); an arm coupler (112) disposed on the plasma extension arm (110) and configured to connect the plasma extension arm (110) to a robotic arm (140); and a set of feed conduits (150) disposed on the plasma extension arm (110) between the arm coupler (112) and the arm connector (122), the set of feed conduits (150) configured to supply a flow to the adjustable plasma spray gun apparatus (120).