3D Shaping Device Binder Circulation for Low Carbon Ejection
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Solution Overview
Problem
Existing three-dimensional shaping devices face challenges in reducing the carbon content of shaped objects while maintaining binding properties, as lowering the binder's wetting agent content compromises ejection stability.
Innovation Solution
A three-dimensional shaping device with a circulation flow path that recirculates the binder, including a nozzle system with specific design features and a composition of water, a water-soluble resin, and a wetting agent, improves ejection stability and increases the density of shaped objects by optimizing the binder's composition and flow path configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If the wetting agent content in the binder is lowered to reduce carbon content, then the carbon content of the shaped object is reduced, but the ejection stability of the binder is lowered
Solution Approach 1:
The patent applies parameter changes by modifying the chemical composition parameters of the binder, specifically using a water-soluble resin with a glass transition temperature of 80°C or higher and controlling the wetting agent content within 1-6 mass% to achieve both reduced carbon content and maintained ejection stability
Solution Approach 2:
The patent employs composite materials by combining water-soluble resin, wetting agent, and potentially other additives in specific proportions to create a binder formulation that simultaneously achieves low carbon content and high ejection stability through synergistic effects of the components
2Object-generated harmful factors
If the water-soluble resin content is reduced to lower carbon content, then the carbon content of the shaped object is reduced, but the binding property may be compromised
Solution Approach 1:
The patent applies parameter changes by specifying that the water-soluble resin has a glass transition temperature of 80°C or higher, which fundamentally changes the material property parameter to maintain binding strength while reducing carbon content through optimized resin selection rather than merely adjusting quantity
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 device achieves improved ejection stability and increased density of shaped objects by circulating the binder, allowing for reduced content of water-soluble resin and wetting agent without compromising ejection performance.
Implementation Method 1
a circulation flow path configured to circulate the binder flowing out of the outflow path to the inflow path
Data Source
AI summary
A three-dimensional shaping device includes: an ejection head including a nozzle configured to eject a binder containing water, a water-soluble resin, and a wetting agent, an individual liquid chamber communicating with the nozzle, an inflow path configured to flow the binder into the individual liquid chamber, and an outflow path configured to flow the binder out of the individual liquid chamber; and a circulation flow path configured to circulate the binder flowing out of the outflow path to the inflow path.