Powder Container with Sensor-Enabled Inert Atmosphere
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current storage and transportation methods for metal powders in additive manufacturing are prone to damage, tampering, and quality issues, leading to contamination and batch variations, which are unacceptable in high-tech manufacturing.
Innovation Solution
A pressure vessel-based container system with a pressurized controlled atmosphere, equipped with sensors and a communication module for monitoring and logging parameters, and a control unit for remote data relay, which ensures the powder's quality by maintaining a controlled environment and reducing contamination risks during transport and use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional airtight containers with barcodes are used for powder storage and transport, then the containers are simple and easy to manufacture, but they are prone to damage, tampering, and ageing, making it impossible to guarantee powder quality at destination
Solution Approach 1:
The container system is segmented into multiple functional components: pressure vessel for controlled atmosphere, data sensing means for monitoring parameters, control unit for data processing, and communication means for data transmission. Each component performs a specific function, collectively ensuring powder quality while maintaining manageable complexity through modular design
Solution Approach 2:
A controlled atmosphere (inert gas) is introduced as an intermediary between the powder and the external environment. This intermediary protects the powder from oxidation and contamination during storage and transport, enabling quality guarantee without requiring the powder to be hermetically sealed in simple containers
2Object-affected harmful factors
If powder is stored in a controlled atmosphere using inert gas, then oxidation and corrosion are inhibited, but the system requires pressure vessels and gas management infrastructure
Solution Approach 1:
The patent applies inert atmosphere protection by filling the pressure vessel with inert gas (such as nitrogen or argon) to create a protective environment that prevents oxidation and corrosion of the metal powder. The controlled atmosphere is maintained at positive pressure to prevent external contaminants from entering
Solution Approach 2:
The system includes automatic gas top-up functionality where the control unit monitors gas pressure and automatically replenishes the inert gas when pressure drops, reducing the need for manual intervention and making the gas management system more self-sufficient
3Loss of information
If sensors and communication modules are integrated into the container, then real-time monitoring and quality assurance are enabled, but the device complexity and manufacturing cost increase
Solution Approach 1:
Data sensing means continuously monitor parameters such as temperature, humidity, and pressure inside the pressure vessel, and feed this information to the control unit. The control unit processes the data and can trigger alerts or automatic responses (such as gas top-up) based on predefined thresholds, enabling real-time quality assurance
Solution Approach 2:
Traditional manual inspection and physical sampling methods are replaced with electronic sensors and digital communication systems. The sensing means use non-contact or minimal-contact methods to monitor powder conditions, and data is transmitted electronically rather than requiring physical retrieval and analysis
4Reliability
If the outlet valve and pilot line system are used to maintain controlled atmosphere during dispensing, then powder quality is preserved, but the system requires additional valves and piping
Solution Approach 1:
The pilot line acts as an intermediary channel that allows controlled atmosphere to flow from the pressure vessel to the dispensing system. This intermediary ensures that the controlled atmosphere is maintained throughout the dispensing process, preventing contamination while enabling powder transfer
Solution Approach 2:
The outlet valve is configured to close automatically when the pressure vessel is connected to the dispensing system, preliminarily establishing the sealed controlled atmosphere environment before actual powder dispensing begins. This preliminary action prevents contamination from occurring during the connection process
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 system effectively preserves the powder's condition, ensuring it arrives at its destination in a usable state, reduces contamination, and provides real-time monitoring for quality assurance and logistics management.
Implementation Method 1
stored in a controlled atmosphere, using an inert gas (e.g. argon, nitrogen), which suitably inhibits corrosion, oxidation or other deterioration of the powder
Implementation Method 2
stored in a controlled atmosphere, using an inert gas (e.g. argon, nitrogen), which suitably inhibits corrosion, oxidation or other deterioration of the powder
Implementation Method 3
The data sensing and/or logging means comprises an oxygen sensor and may further comprise any one or more of the group comprising: a humidity sensor; a temperature sensor; a pressure sensor
Implementation Method 4
the control unit adapted record and log the sensor readings either continuously, or at intervals, the control unit comprising a communications module adapted to relay sensor readings, or log files, to a remote monitoring station
Implementation Method 5
an outlet through which, in use, the powder can flow out of the pressure vessel, and an outlet valve for selectively opening and closing the outlet
Implementation Method 6
The powder container may further comprise a pilot line communicating with the interior of the pressure vessel and the outlet downstream of the outlet valve
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A powder container (10) comprising a pressure vessel (12) for containing a quantity of powder (14) and a quantity of pressurised gas(32), an outlet through which, in use, the powder (14) can flow out of the pressure vessel (12), and an outlet valve (24) for selectively opening and closing the outlet, wherein the container (10) further comprises a data sensing and/or logging means (56, 58, 60, 62, 64) adapted to monitor and/or log various parameters of the powder (14) and/or the pressurised gas (32) and further comprising a control unit (54) adapted record and log the sensor readings either continuously, or at intervals, the control unit (54) comprising a communications module adapted to relay sensor readings, or log files, to a remote monitoring station.