Microwave Sintering of Covered Metal Powder for Joined Solids
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Solution Overview
Problem
Existing methods for producing metal solids are complex, costly, and prone to disruptions in processing, leading to inefficiencies and high expenses due to logistical challenges and the need for multiple processing steps.
Innovation Solution
A method involving the use of a high-melting-point material to cover a metal powder, followed by microwave irradiation to sinter or melt-solidify the metal powder, allowing for the production of metal solids with ease and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional methods of processing ingots and metal steel pieces are used, then metal solids can be produced, but the processes become complicated and expensive with multiple steps and logistical transport
Solution Approach 1:
The patent replaces conventional mechanical processing methods (ingot processing, steel piece processing) with microwave irradiation technology. The microwave heating system directly heats metal powder within a high-melting-point material matrix, eliminating the need for complex mechanical processing steps, multiple handling operations, and associated logistical transport, thereby significantly simplifying the manufacturing process while maintaining production capability
Solution Approach 2:
The patent changes the physical and chemical parameters of the processing system by using microwave radiation (electromagnetic field) instead of conventional thermal or mechanical fields. By controlling microwave power, heating rate, and atmosphere composition, the process achieves metal solid formation through sintering or melting directly from powder state, bypassing traditional multi-step processing and reducing overall process complexity
2Ease of manufacture
If conventional processing methods are used, then metal solids can be produced, but production costs increase due to multiple processing steps and logistical transport
Solution Approach 1:
The patent replaces energy-intensive mechanical processing and transport operations with direct microwave heating. The microwave energy is absorbed by the metal powder and high-melting-point material, enabling in-situ processing that eliminates the need for multiple handling, transport between processing companies, and associated energy consumption, thereby reducing overall production costs
Solution Approach 2:
The patent extracts and eliminates unnecessary intermediate processing steps and logistical transport operations from the conventional manufacturing chain. By processing metal powder directly within the high-melting-point material matrix using microwave irradiation, the system removes redundant steps that contribute to energy loss and increased production costs
3Reliability
If conventional processing methods are used, then metal solids can be produced, but disruptions in one step can disrupt all downstream steps
Solution Approach 1:
The patent merges multiple conventional processing steps into a single integrated microwave processing operation. The metal powder, high-melting-point material, and binding process are combined into one system where microwave irradiation simultaneously heats, sinters, and forms the metal solid within the protective matrix, eliminating sequential steps that could be disrupted independently
Solution Approach 2:
The patent segments the processing system into distinct functional zones within the microwave field, allowing independent optimization of heating, sintering, and protective atmosphere conditions. This modular approach within a single process step reduces interdependence between steps, so that localized issues do not propagate to disrupt the entire production chain
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
This method enables the efficient production of metal solids with improved bonding capabilities, reducing production costs and complexities while enhancing the reliability of the process.
Implementation Method 1
covering at least a portion of the periphery of a metal powder with a high-melting-point material having a melting point higher than the melting point of the metal powder
Implementation Method 2
irradiating the metal powder, at least a portion of the periphery of which is covered with the high-melting-point material, with microwaves to heat the metal powder
Implementation Method 3
irradiating the metal powder, at least a portion of the periphery of which is covered with the high-melting-point material, with microwaves to heat the metal powder
Implementation Method 4
the high-melting-point material may include an absorbent material that absorbs the microwaves in a temperature zone at least a portion of which is lower than a temperature zone in which the metal powder absorbs the microwaves
Data Source
AI summary
A method for producing a joined solid, the method comprising placing a metal powder on a solid; covering at least a portion of the periphery of the metal powder with a high-melting-point material having a melting point higher than the melting point of the metal powder; and irradiating the metal powder, at least a portion of the periphery of which is covered with the high-melting-point material, with microwaves to heat the metal powder, thereby sintering or melt-solidifying the metal powder to form a metal solid on the solid.