Fishing Line Guide With Carbide Surface Layer
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Solution Overview
Problem
Conventional fishing line guides, whether made of ceramics or metals, face issues such as vulnerability to impact, wear due to friction, and susceptibility to rust, which affect their durability and performance.
Innovation Solution
A fishing line guide with a guide ring featuring a base material layer of low iron content alloy and a surface layer of chromium carbide, titanium carbide, or vanadium carbide, which enhances hardness and resistance to rust, and is curved to reduce stress and improve stability when fitted into the guide body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the guide ring is made of ceramics to increase hardness and reduce wear, then wear resistance is improved, but impact resistance deteriorates and the guide ring becomes vulnerable to breaking
Solution Approach 1:
The guide ring is constructed as a composite structure with a metal base material layer (providing toughness and impact resistance) and a ceramic surface layer (providing hardness and wear resistance). This composite structure allows the guide ring to simultaneously achieve high wear resistance from the ceramic layer and high impact resistance from the metal base layer, resolving the contradiction between these two properties.
2Reliability
If the guide ring is made of metal to improve impact resistance, then reliability is improved, but hardness decreases and wear resistance deteriorates
Solution Approach 1:
The guide ring combines a metal base material layer (providing toughness and impact resistance) with a ceramic surface layer (providing hardness and wear resistance). This composite structure allows the guide ring to simultaneously achieve high impact resistance from the metal base layer and high hardness from the ceramic surface layer, resolving the contradiction between these two properties.
Solution Approach 2:
Different regions of the guide ring are given different properties: the base material layer is made of metal with high toughness for impact resistance, while the surface layer is made of ceramic with high hardness for wear resistance. This local differentiation of material properties allows each layer to perform its specific function optimally.
3Reliability
If the guide ring is made of stainless steel to improve corrosion resistance, then reliability is improved, but hardness decreases and rust susceptibility increases
Solution Approach 1:
The guide ring uses a composite structure where the metal base material layer provides corrosion resistance and the ceramic surface layer provides hardness. This combination allows the guide ring to simultaneously achieve high corrosion resistance from the metal base layer and high hardness from the ceramic surface layer, resolving the contradiction between these properties.
Solution Approach 2:
Different regions of the guide ring are given different properties: the base material layer is made of metal with high corrosion resistance, while the surface layer is made of ceramic with high hardness. This local differentiation of material properties allows each layer to perform its specific function optimally.
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 high-hardness surface layers significantly reduce wear and attrition from the fishing line, while the low iron content base material layer prevents rust, ensuring the guide ring remains durable and stable under tension.
Implementation Method 1
first subjecting said base material layer to a carburizing process so that a carburization layer is formed thereon
Implementation Method 2
then subjecting the carburization layer to a process of diffusing and impregnating chromium into the carburization layer
Implementation Method 3
the base material layer is formed of an alloy having an Fe content of 3 wt % or less
Data Source
AI summary
One object is to provide a fishing line guide including a high-hardness guide ring and a fishing rod provided with said fishing line guide. A fishing line guide according to one embodiment of the present invention includes a guide body with a through hole formed therein and a guide ring fitted into the through hole of the guide body. In one aspect, the guide ring includes a base material layer and a surface layer formed on a surface of the base material layer. In one aspect of the present invention, the base material layer is formed of an alloy having an Fe content of 3 wt % or less or 2 wt % or less. In one aspect of the present invention, the surface layer is formed of chromium carbide, titanium carbide, or vanadium carbide.