Selective Anodizing Apparatus for Hydraulic Block Bore Treatment
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Solution Overview
Problem
Existing anodizing processes for hydraulic blocks are complex and time-consuming, requiring additional steps like grinding and masking, which decrease productivity and increase manufacturing costs.
Innovation Solution
An anodizing apparatus that selectively performs anodizing surface treatment on specific portions of a target product, such as a hydraulic block, using a base, working part with electrode bars and spray nozzles, and a cover part with sealing blocks and driving parts, allowing for vacuum formation to prevent electrolyte leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire hydraulic block is subjected to anodizing surface treatment, then corrosion resistance and abrasion resistance are improved, but manufacturing time increases and productivity decreases
Solution Approach 1:
The patent applies local quality by selectively performing anodizing treatment only on the first bore (sliding part) while excluding the second bore (valve bore) from treatment. This is achieved by providing a cover part with a first opening aligned with the first bore and a second opening aligned with the second bore, allowing the electrolyte to access only the first bore during the anodizing process. This selective treatment reduces manufacturing time while maintaining the required corrosion and abrasion resistance on the sliding part.
2Manufacturing precision
If additional processing steps like grinding and masking are performed, then selective anodizing is achieved, but process complexity increases and manufacturing cost increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring the anodizing apparatus with a cover part that has openings positioned to selectively expose the first bore to the electrolyte before the anodizing process begins. This preliminary setup eliminates the need for post-processing steps like grinding or masking, as the selective access is built into the apparatus structure itself. The base part provides a second opening for the second bore, and the cover part's first opening is positioned to allow electrolyte entry only to the first bore, simplifying the overall process.
3Reliability
If the hydraulic block is completely sealed during anodizing, then electrolyte leakage is prevented, but selective treatment of specific bores becomes difficult
Solution Approach 1:
The patent applies segmentation by dividing the access paths to different bores through separate openings in the base and cover parts. The base part has a first opening for the first bore and a second opening for the second bore. The cover part has a first opening aligned with the first bore and a second opening aligned with the second bore. This segmented opening structure allows the electrolyte to be contained within the anodizing chamber while selectively accessing only the first bore through the aligned openings, preventing electrolyte leakage to the second bore while maintaining selective treatment capability.
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 apparatus enables efficient and selective anodizing surface treatment, improving the quality and reliability of the target product, simplifying the process, and reducing manufacturing costs by eliminating the need for additional processing steps.
Implementation Method 1
When a metal being an anode is electrolyzed in an acidic electrolyte, an oxide film with high adhesion is formed on the surface of the metal by oxygen generated from the anode, which is an anodizing process
Implementation Method 2
a leakage prevention part configured to form an inner space of the cover part or the first bore to be a vacuum
Data Source
AI summary
Provided is a anodizing apparatus, including: a base configured to support a target product including a first bore that requires an anodizing surface treatment and a second bore that is connected to the first bore and excluded from the anodizing surface treatment; a working part configured to perform the anodizing surface treatment on the first bore; and a cover part configured to cover an outer surface of the target product, wherein the working part includes at least one electrode bar configured to access and enter the first bore, and a plurality of spray nozzles provided integrally with each of the at least one electrode bar and configured to selectively supply one of a degreasing solution, an electrolyte, and a cleaning solution to the first bore.