Reciprocating Solder Tank Extension for Dross Decomposition
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Solution Overview
Problem
Existing solder processing technologies are limited in their ability to effectively decompose dross, leading to increased material costs and reduced productivity due to dross lump formation.
Innovation Solution
A solder processing apparatus with an extension part that reciprocates horizontally in the molten solder, cutting and separating dross, combined with a configuration that minimizes oxidation and promotes even distribution of solder, using thermally conductive materials to enhance dross decomposition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional oxide separation apparatus with blades or screw is used, then dross decomposition is achieved to a certain extent, but the effect is limited and dross lumps still form
Solution Approach 1:
The patent applies the dynamics principle by making the extension part movable rather than stationary. The extension part reciprocates horizontally within the molten solder, creating dynamic mechanical action that continuously cuts and separates dross. This dynamic movement transforms the static blade configuration into an active cutting mechanism that effectively breaks down dross lumps, resolving the limitation of conventional static separation apparatus.
Solution Approach 2:
The extension part is divided into multiple segments or blades arranged horizontally. This segmentation allows each blade to independently cut through dross material as the extension part reciprocates, creating multiple cutting actions simultaneously. The segmented structure enhances the overall dross decomposition effectiveness while maintaining the ability to process large volumes of molten solder.
2Productivity
If molten solder is jetted continuously to maintain supply, then productivity is improved, but oxidation increases and dross generation increases
Solution Approach 1:
The patent converts the harmful effect of oxidation into a beneficial separation mechanism. By allowing controlled oxidation to occur during continuous solder supply, dross is generated and rises to the surface where it can be effectively captured and separated by the extension part. This approach transforms the unavoidable oxidation process from a purely harmful effect into an opportunity for continuous dross removal, maintaining productivity while managing dross generation.
3Manufacturing precision
If extension part moves rapidly to enhance dross cutting, then dross decomposition effectiveness is improved, but energy consumption increases
Solution Approach 1:
The extension part operates through periodic reciprocating motion rather than continuous high-speed rotation. This periodic action allows the blades to cut through dross during the forward stroke while returning to the starting position during the reverse stroke, minimizing energy consumption. The reciprocating motion is synchronized with the dross generation and rise cycle, creating efficient periodic cutting action that reduces overall energy requirements compared to continuous high-speed operation.
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
Significantly reduces dross lump formation, allowing continuous operation and reducing material waste, thereby improving productivity and lowering costs, especially effective with Bi-containing solders.
Implementation Method 1
an extension part (210) reciprocates horizontally in the molten solder (S)
Implementation Method 2
using thermally conductive materials to enhance dross decomposition
Data Source
Figure 1
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AI summary
A solder processing apparatus having a storage tank 110 storing molten solder S; and an extension part 210 being at least partially immersed in the molten solder S in the storage tank 110 and extending in the molten solder S. The extension part 210 reciprocates in a horizontal direction in the molten solder S.