Platinum Wire Gold Coating Die Wear Reduction
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Solution Overview
Problem
Platinum-based material thin wires are difficult to thin efficiently due to high deformation resistance and catalytic action causing die wear and processing accuracy issues during drawing processing, limiting the production of high-quality thin wires with diameters of 100 µm or less.
Innovation Solution
Coating the platinum-based material wire with gold or gold alloy, achieving a coverage of 40% or more on an area basis, to inhibit die wear by preventing direct contact and catalytic action, thereby enhancing processing accuracy and reducing breakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If drawing processing is performed on platinum-based material to reduce wire diameter, then wire thinning is achieved, but die wear increases and processing accuracy deteriorates
Solution Approach 1:
A lubricant is introduced as an intermediary substance between the platinum-based material wire and the die during drawing processing. The lubricant forms a protective film that prevents direct contact and catalytic reaction between platinum and diamond, thereby reducing die wear and maintaining processing accuracy while enabling wire thinning to 100 μm or less
Solution Approach 2:
The chemical and physical parameters of the lubricant are optimized to specifically counteract the catalytic action of platinum on diamond. The lubricant is selected or formulated to have high stability against platinum-catalyzed carbonization, changing the interaction parameters between the wire and die to prevent harmful reactions while maintaining effective lubrication
2Length of moving object
If drawing processing is performed on platinum-based material to reduce wire diameter, then wire thinning is achieved, but wire breakage increases
Solution Approach 1:
The lubricant acts as a mediator that reduces friction and prevents direct abrasive contact between the wire surface and die during drawing. This protective作用 reduces mechanical stress and prevents wire breakage while enabling continued thinning to target diameters of 100 μm or less
Solution Approach 2:
The lubricant is applied beforehand to the wire or die surface to create a protective cushioning layer before the drawing process begins. This pre-established protective film cushions the wire during high-stress drawing operations, preventing breakage that would otherwise occur due to the high deformation resistance of platinum-based materials
3Strength
If hard material die is used for drawing processing of platinum-based material, then deformation resistance is overcome, but die wear accelerates due to catalytic action
Solution Approach 1:
The lubricant serves as a protective intermediary between the hard diamond die and the platinum-based material wire. It prevents direct contact and the catalytic carbonization reaction that would otherwise cause rapid die wear, while still allowing the hard die to effectively overcome the high deformation resistance of the platinum material
Solution Approach 2:
The lubricant is specifically selected to counteract the harmful catalytic action of platinum on diamond. By understanding and addressing the harmful catalytic effect, the lubricant converts a potentially destructive interaction into a controlled process where the catalytic activity is neutralized, protecting the die while maintaining processing effectiveness
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 method allows for the efficient production of high-quality platinum-based thin wires with diameters between 10 µm and 100 µm, maintaining favorable properties and minimizing die wear, while ensuring the electric properties and biocompatibility of the platinum-based material.
Implementation Method 1
the catalytic action of platinum carbonizes carbon of diamond or the like that is a constituent material of a die. The carbonization accelerates wear of the die
Data Source
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AI summary
A platinum-based material element wire is coated with gold or gold alloy, and drawing-processed with a carbon-containing die. The thin wire manufactured in this manner is covered with gold or gold alloy, and the coverage of gold or gold alloy is 40% or more on an area basis. The thin wire formed of a platinum-based material is manufactured in a state of suppressing breakage in a drawing processing step, and has favorable performance in electric properties and the like. In addition, this manufacturing process is capable of efficiently manufacturing a platinum-based material thin wire while suppressing breakage when the thin wire is manufactured by drawing processing.