Multi-Layer Hose Clamp Bonding Corrosion Resistance
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Solution Overview
Problem
Hose clamps with corrosion-resistant materials often fail to bond effectively with hoses, necessitating the use of intermediate components like clips for secure attachment.
Innovation Solution
A multi-layer hose clamp design featuring an outer layer of corrosion-resistant material and an inner layer of a different material, specifically selected for enhanced bonding, which is permanently bonded to form an inner bonding layer to secure the clamp to the hose.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If corrosion-resistant materials are used for the hose clamp band, then corrosion resistance is improved, but bonding effectiveness with the hose deteriorates
Solution Approach 1:
The hose clamp band is constructed as a composite material system with an outer corrosion-resistant layer (such as stainless steel or polymer coating) and an inner bonding layer (such as rubber, adhesive-coated material, or chemically reactive polymer). This composite structure allows the outer layer to provide corrosion resistance while the inner layer provides effective bonding to the hose, simultaneously resolving both requirements.
Solution Approach 2:
Different portions of the band are made from different materials with different properties. The outer surface facing the environment is made corrosion-resistant, while the inner surface contacting the hose is made with bonding-enhancing properties. This local differentiation allows each surface to optimize its function without compromising the other.
2Ease of manufacture
If a single-material band is used, then manufacturing simplicity is improved, but bonding effectiveness with hoses of different materials deteriorates
Solution Approach 1:
The multi-material band construction enables the hose clamp to bond effectively with different hose materials (rubber, plastic, metal) through the inner bonding layer, while maintaining a relatively simple manufacturing process through methods like co-extrusion, laminating, or pre-applied adhesive layers.
Solution Approach 2:
The inner layer material properties are specifically selected or modified to create chemical or physical affinity with various hose materials. This may involve using adhesives compatible with multiple substrates, rubber materials that bond to both metal and polymer, or surface treatments that enhance universal bonding capability.
3Strength
If intermediate components like clips are used to enable bonding, then bonding effectiveness is improved, but device complexity increases
Solution Approach 1:
The bonding function that previously required a separate intermediate component (clip or adhesive layer) is now integrated directly into the band structure itself. The inner layer of the band performs both the clamping function and the bonding function, eliminating the need for separate bonding components and simplifying the overall assembly.
Solution Approach 2:
By incorporating bonding-capable materials directly into the band construction, the system achieves effective bonding without requiring separate intermediate components. The composite band structure combines clamping and bonding functions in a single integrated component, reducing assembly complexity.
Data Source
AI summary
A hose clamp includes a band including an outer layer comprising a first material and an inner layer comprising a second material different than the first material. A connector secures the band to itself. The second material is selected to enhance bonding between the band and a hose comprising a material different than the first material.