3D printing device capable of monitoring benzene pollutants in real time during printing
A real-time monitoring and 3D printing technology, which can be used in the improvement of process efficiency, processing and manufacturing, and processing data acquisition/processing. The effect of heating and improving the utilization rate of powder
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[0037] The gas sensor using nano-polyaniline-activated carbon as the coating of the gas-sensing material was tested against three gases: methylene chloride, toluene and styrene, and the response speed and limit concentration of the gas sensor to different gases were evaluated, and then the evaluation of this paper was carried out. The embodiment of the invention provides the size of the detection field of the 3D printing device. The comparison between the data of the 3D printing device and the data of the gas chromatography GC method is shown in Table 1 below:
[0038] Table 1 Comparison of 3D printing equipment data and gas chromatography GC monitoring
[0039] Limit concentration (ppm) Response frequency(Hz / ppm) GC(ppm) Chloromethane 0.047 264 0.046 toluene 0.025 238 0.035 Styrene 0.015 305 0.020
[0040] The response frequency of the gas sensor is calculated by the following formula: Δf=3.28×10 -6 ΔM l / V, where ΔM represents the...
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