Melt Flow Rate Control for Radial Functional-Gradient Materials
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Solution Overview
Problem
Existing methods for producing functional-gradient materials are limited by small size, high production costs, low efficiency, and a tendency towards macro-cracking, with conventional metallurgical methods unable to effectively design materials for varying environmental conditions.
Innovation Solution
A melt flow rate adjustment system and method using a raw material storage tank, mixing funnel, screw smelting machine, centrifugal casting machine, temperature sensor, and control platform to regulate and control the flow rate of multi-component radial functional-gradient materials, ensuring continuous variation in composition and properties through real-time feedback and optimal processing conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional metallurgical methods are used to prepare functional-gradient materials, then the material can be produced, but the size is limited, production cost is high, and efficiency is low
Solution Approach 1:
The patent changes the physical state parameters of materials by melting them and controlling the flow rate of the melt during centrifugal casting. By adjusting temperature and flow rate parameters, the system achieves continuous variation in material composition and structure, enabling efficient production of large-size functional-gradient materials with controlled properties
Solution Approach 2:
The patent replaces conventional mechanical mixing and assembling methods with a fluid-based centrifugal casting process. The melt is poured into a centrifugal casting mold where centrifugal force creates the functional gradient structure, substituting complex mechanical operations with a more efficient fluid dynamic process
2Manufacturing precision
If vapor deposition, plasma spraying, or other advanced methods are used to prepare functional-gradient materials, then material properties can be controlled, but the size is limited and production cost is high
Solution Approach 1:
The patent introduces a melt as an intermediary medium to transfer material from the mixing funnel to the centrifugal casting mold. By controlling the melt flow rate and using centrifugal force, the system achieves precise control over material deposition while enabling large-size production, overcoming the size limitations of direct vapor deposition methods
Solution Approach 2:
The patent segments the material preparation process into distinct functional stages: raw material storage, mixing with controlled ratios, melting, flow rate control, and centrifugal casting. This segmentation allows each stage to be optimized independently, achieving both precise property control and large-size production
3Reliability
If existing functional-gradient material preparation methods are used, then materials can be produced, but macro-cracking occurs and design flexibility is limited
Solution Approach 1:
The patent implements a feedback control system that monitors melt flow rate and adjusts the feeding mechanism accordingly. This feedback mechanism prevents macro-cracking by maintaining optimal flow conditions and enables flexible design adaptation by allowing real-time adjustment of material composition and structure based on process parameters
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
Enables the efficient production of large-size multi-component radial functional-gradient materials with improved quality and reduced time costs, allowing for continuous variation in properties to adapt to different environmental conditions.
Implementation Method 1
prevent the long-range diffusion of a melt
Implementation Method 2
solidify the melt with the ingredients gradient varying into pipe materials by a centrifugal casting style
Implementation Method 3
monitor the temperature of the outer surface of centrifuge cavity
Data Source
AI summary
A screw smelting machine melts raw materials with a different chemical ratio in a mixing funnel in a feeding order to prevent the long-range diffusion of a melt, and controls outflow at a suitable speed. A centrifugal casting machine solidifies the melt with the ingredients gradient varying into a radial ingredient gradient material by a centrifugal casting style. A temperature sensor monitors temperature of an outer surface of a centrifuge cavity of the centrifugal casting machine during centrifugal casting, and transmits the temperature to a control platform. The control platform determines an optimal flow rate of the melt at an end of screw rod according to ingredient gradient of ingredient radial-gradient pipe materials and a thickness of each component gradient material required with preparation, in combination with a real-time data fed back from the temperature sensor, and feeds back to a feeding end.