Casting Tool Sensor Integration for Process Control
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Solution Overview
Problem
Existing temperature-controlled shell tools are not suitable for reacting to process fluctuations such as pressure or temperature changes during shaping processes, leading to inconsistent and non-reproducible material properties in cast products, particularly in core shooting processes.
Innovation Solution
A casting tool with a thin shell engraving that incorporates physical sensors for real-time monitoring of temperature and density, allowing for immediate adjustments in heating and ventilation to maintain consistent process conditions, and a multi-channel mold ventilation system for controlled air pressure application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a temperature-controlled shell tool is used, then temperature control capability is improved, but the ability to react to process fluctuations and achieve reproducible material properties deteriorates
Solution Approach 1:
The patent implements feedback control by equipping the shell engraving with physical sensors (temperature, density, pressure) that continuously monitor the shaping process. The control and regulation unit receives real-time data from these sensors and automatically adjusts the heating element output to compensate for process fluctuations, ensuring reproducible material properties while maintaining temperature control capability.
Solution Approach 2:
The patent makes the heating element dynamically adjustable by controlling its output power in real-time based on sensor feedback. The heating element transitions from a static temperature control device to a dynamic system that can respond to changing process conditions, allowing adaptation to pressure or temperature fluctuations during the shaping process.
2Speed
If the shell engraving wall thickness is reduced for faster temperature detection, then response speed is improved, but mechanical strength deteriorates
Solution Approach 1:
The patent optimizes the wall thickness parameter of the shell engraving to a specific range (0.5-15 mm, preferably 0.5-10 mm, particularly 0.5-3 mm) that balances thermal responsiveness with mechanical strength. This parameter optimization allows the shell to be thin enough for fast temperature detection while remaining strong enough to withstand the shaping process forces.
3Manufacturing precision
If physical sensors are integrated into the shell engraving for real-time monitoring, then process control precision is improved, but device complexity deteriorates
Solution Approach 1:
The patent merges the sensing function directly into the shell engraving structure itself, rather than using separate external sensors. The physical sensors are integrated into the shell engraving to measure temperature, density, and pressure at the actual shaping interface, combining measurement and structural functions in one component to reduce overall system complexity while maintaining high process control precision.
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 reproducible and homogeneous material properties by quickly detecting temperature and density changes, allowing for in-situ adjustments to ensure consistent casting results and efficient mold filling.
Implementation Method 1
at least one heating element (8) that is thermally coupled to the shell engraving (4)
Implementation Method 2
a density sensor (10) mechanically coupled to the shell engraving (4) for determining a density of a material injected into the mold cavity (5)
Implementation Method 3
The physical measured variable can also be a temperature and/or a specific material density
Implementation Method 4
the shell engraving can have a wall thickness, at least in the area of a measuring field of the sensor, which is between 0.5 and 15 mm
Data Source
Figure 1
AI summary
The invention relates to a casting tool (1), for example a core shooting tool or a mold, comprising a tool upper part (2) and a tool lower part (3), each having at least one engraving designed as a shell engraving (4) on opposite sides and forming a mold cavity (5), characterized in that the shell engraving (4) has at least one physical sensor (7) on an outer surface (6) facing away from the mold cavity (5), which is configured to detect a physical measurement quantity relating to a material contained in the mold cavity (5). A corresponding casting process is further described.