Chromium Carbide Lined Concrete Pipe for Wear and Pressure Resistance
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Solution Overview
Problem
Current methods for producing tubular elements to transport abrasive materials like concrete are complex, costly, and time-consuming, with issues related to material wear resistance, internal pressure handling, and coupling precision, leading to inefficiencies and high production costs.
Innovation Solution
A tubular element comprising an external steel component and an internal chromium carbide component, where the chromium carbide is deposited in a melted state onto the rotating external steel component, allowing for a single-step production process that ensures perfect adhesion and enhanced wear resistance, with the external component being heated to maintain fluidity and ensure correct geometry conformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate production steps (flaring, tempering, coupling) are used to manufacture tubular elements, then the wear resistance and structural integrity can be achieved, but the production complexity and time increase significantly
Solution Approach 1:
The patent combines multiple separate production steps (flaring, tempering, and coupling of internal and external tubular components) into a single integrated continuous production process. The internal tubular component is flared and coupled to the external component during the same operational sequence without intermediate handling or separate tempering cycles, thereby reducing production complexity while maintaining wear resistance and structural integrity
Solution Approach 2:
The production process operates continuously with the internal tubular component being flared, coupled to the external component, and tempered in an uninterrupted sequence. This eliminates idle time and repeated setup between operations, reducing overall production time and complexity while ensuring consistent quality and reliability of the final product
2Ease of manufacture
If traditional flaring and coupling methods are used before tempering, then the tubular components can be joined, but production time and costs increase due to multiple sequential steps
Solution Approach 1:
The flaring, coupling, and tempering operations are merged into a single continuous process sequence. The internal component is flared and coupled to the external component, then both are tempered together in one operational flow, eliminating the need for separate handling and waiting periods between steps, thus reducing production time while simplifying the manufacturing process
Solution Approach 2:
The internal tubular component is prepared with preliminary flaring and coupling features before the final tempering operation. This preliminary preparation allows the components to be joined in advance of the tempering step, enabling a more streamlined production sequence that reduces overall manufacturing time while maintaining ease of manufacture
3Reliability
If the internal tubular component is tempered separately before assembly, then wear resistance is achieved, but the coupling precision and adhesion quality deteriorate due to the fragility of tempered material
Solution Approach 1:
The flaring and coupling of the internal tubular component to the external component are performed before the tempering operation. This preliminary assembly allows the components to be joined while the material is still ductile and easier to form, ensuring high coupling precision and good adhesion. The tempering step is then applied to the assembled structure to achieve the required wear resistance without compromising the previously established precise coupling
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 significantly reduces production costs and time, enhances wear resistance, and improves the repeatability and reliability of the tubular elements, enabling them to withstand high internal pressures while simplifying the manufacturing process and allowing for automation.
Implementation Method 1
the external component being heated to maintain fluidity and ensure correct geometry conformity
Implementation Method 2
the chromium carbide is deposited in a melted state onto the rotating external steel component
Implementation Method 3
allowing for a single-step production process that ensures perfect adhesion
Data Source
AI summary
A method to make a tubular element to transfer abrasive materials such as concrete, inert materials or suchlike, where the tubular element includes an external tubular component made of steel and an internal tubular component, coaxial to the external tubular component, where the internal tubular component is made of chromium carbide, or other similar material resistant to wear.