Composite Conductor Rail Insertion Rod Anchoring
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Solution Overview
Problem
Existing composite conductor rails face detachment issues between the light metal support body and the harder metal profile strip under high loads, despite an intimate metal bond, and suffer from manufacturing methods that lead to surface undulations and poor mechanical anchoring.
Innovation Solution
The integration of anchor or insertion rods made of the same material as the profile strip, which are welded to the profile strip and engage in lateral slots within the carrier profile, providing a secure and form-locking connection that complements the profile strip on both sides, ensuring a reliable bond and mechanical anchoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If an intimate metal bond is produced between the profile strip and support body during extrusion, then the bond strength is improved, but detachment occurs under high load over time
Solution Approach 1:
The connection system is segmented into multiple independent anchoring elements (insertion rods) distributed along the profile strip, rather than relying on a single continuous metallic bond. This segmentation allows the load to be distributed across multiple discrete anchoring points, preventing catastrophic failure and reducing detachment risk under high load conditions.
Solution Approach 2:
The insertion rods are pre-positioned within the support body before the profile strip is applied, creating predetermined anchoring locations. This preliminary action ensures that the anchoring elements are already in place to resist detachment forces before the profile strip is installed, providing reliable long-term performance under high load.
2Productivity
If conventional extrusion methods are used to produce the carrier profile, then production efficiency is maintained, but surface undulations occur on the upper surface
Solution Approach 1:
The problematic stepwise caulking or stamping operations that cause surface undulations are completely removed from the manufacturing process. Instead, the carrier profile is produced through continuous extrusion alone, extracting the harmful intermediate operations while maintaining production efficiency and achieving a smooth upper surface suitable for profile strip application.
3Strength
If the profile strip is made of harder metal for wear resistance, then abrasion resistance is improved, but the bond with light metal support body deteriorates under high load
Solution Approach 1:
The insertion rods act as intermediary anchoring elements between the profile strip and support body. These rods are embedded in the support body and provide mechanical interlocking, mediating the connection between the harder profile strip and the lighter support body to prevent detachment under high load conditions while maintaining the wear resistance benefits of the harder metal profile strip.
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
This solution enhances the bond between the carrier profile and the profile strip, providing a durable and reliable mechanical anchoring system that prevents detachment under high loads and reduces surface undulations, while allowing for economic manufacturing and global production without upgrading existing extrusion equipment.
Implementation Method 1
the insertion rod or insertion profile is preferably made of the material of the profile strip and joined to the latter by a weld seam
Data Source
AI summary
A composite profile comprising a carrier profile made of a light metal material and a profiled strip which is made of a harder material and covers the top surface of the carrier profile. An insertable bar is added to the profiled strip on each longitudinal side in a position parallel to the direction thereof and is inserted into a lateral slot embodied therein. The insertable bar is firmly connected to the profiled strip thereof by a weld seam.