Abrasive Nozzle for Parallel Surface Matting
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Solution Overview
Problem
Existing surface matting devices and methods are inefficient for large surfaces due to low area performance, as the matting rate is limited by the relative speed between the workpiece and the nozzle or beam chamber.
Innovation Solution
A device and method where the workpiece and nozzle remain rigid, with the blasting agent beam directed approximately parallel or at an angle less than 30° to the surface, allowing for alternate irradiation in opposite directions, increasing the surface rate of matting and using a groove-shaped surface to achieve homogeneous results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the blasting agent beam is directed perpendicular or at a significantly high angle to the surface, then the matting operation can be performed with conventional nozzle designs, but the area performance and surface rate of matting are limited due to the relative speed between workpiece and nozzle
Solution Approach 1:
The patent changes the critical parameter from the angle of incidence (perpendicular/high angle) to a low angle (less than 30°) relative to the surface plane. This parameter change allows the blasting agent to effectively matt the surface while the nozzle can move parallel to the surface at higher speeds, thereby increasing area performance without being constrained by high relative speeds between workpiece and nozzle.
Solution Approach 2:
The patent transitions from a conventional approach where the nozzle must move perpendicular or at high angles to the surface, to a configuration where the nozzle moves parallel to the surface plane. This dimensional change in the motion trajectory allows for higher effective processing speeds and improved area performance, as the nozzle can sweep across large surfaces more efficiently.
2Productivity
If the nozzle or beam chamber is moved relative to the workpiece to achieve matting, then the processing can be completed, but the matting operation takes long duration for larger surfaces
Solution Approach 1:
The patent changes the motion parameter from perpendicular/high-angle movement to low-angle movement (less than 30°) relative to the surface plane. This allows the nozzle to cover larger surface areas more quickly, reducing the duration of matting operations while maintaining effective treatment of the surface.
Solution Approach 2:
The patent optimizes the dynamic relationship between nozzle movement and surface treatment by aligning the blasting agent beam at a low angle to the surface plane. This dynamic configuration enables faster traversal of large surfaces, thereby reducing processing time and increasing the surface rate of matting for larger workpieces.
3Productivity
If a low angle of less than 30° is used for the blasting agent beam, then the area performance and surface rate of matting are significantly enhanced, but the nozzle design and alignment requirements become more specific
Solution Approach 1:
The patent specifies a precise angular parameter (less than 30°) for the blasting agent beam relative to the surface plane. While this requires specific alignment, the low-angle configuration dramatically increases area performance and surface rate of matting, making the additional alignment precision worthwhile for processing large surfaces efficiently.
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 significantly enhances the area performance of surface matting, ensuring a more uniform and chemically resistant finish, with improved ergonomic handling and safety, allowing for efficient processing of larger surfaces without wear on the nozzle.
Implementation Method 1
irradiation of the surface with a blasting agent beam of abrasive material
Implementation Method 2
a negative pressure is generated in the beam chamber, which connects the interaction opening fluid-tightly with the surface
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a device (1, 1A) for matting a surface (12), with a nozzle (3, 3A) which has a blast chamber (4, 4A) for irradiating a workpiece (10, 10A) with an abrasive radiation material, wherein the blast chamber (4, 4A) has at least one planar interaction opening (5.2) on at least one of its sides, which is provided to be positively fitted onto at least one surface (12) to be matted, so that the blast chamber (4, 4A) is thereby closed. According to the invention, the workpiece (10, 10A) and the nozzle (3, 3A) remain rigid relative to each other during the irradiation process, wherein a direction of a jet of abrasive material (9) within the blast chamber (4, 4A) can be aligned approximately parallel or at an angle of less than 30° to the interaction opening (5.2) and the surface (12) to be matted.