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

Inactive Publication Date: 2017-03-29
广州达通光电科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the quality of printing materials is unqualified, especially plastic materials, the printing process will produce a lot of harmful gases, which will not only pollute the environment, but also endanger the health of personnel

Method used

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  • 3D printing device capable of monitoring benzene pollutants in real time during printing
  • 3D printing device capable of monitoring benzene pollutants in real time during printing

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experiment example

[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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Abstract

The invention discloses a 3D printing device capable of monitoring benzene pollutants in real time during printing. The 3D printing device comprises a printing device body, a control system and a monitoring system. The printing device body and the monitoring system are connected with the control system. The proportion of the length to the width to the height of the printing device body is 60:50:40. Radiant exposure is adopted for preheating a to-be-processed powder layer, uniform powder heating is guaranteed, the temperature gradient is avoided, and machined and formed workpieces are prevented from being uneven in thickness; the height of a scraper device is adjustable, the scraper device is in the horizontal state all the time, and continuous powder laying precision is guaranteed; a scraper scrapes and recycles residual powder, and the powder utilization rate is increased; a laser focus is located on the datum plane all the time, and the laser forming quality of a melting layer is ensured; and laser 3D printing forming is finished in a cavity, gas and dust particles generated in the process cannot leak, and meanwhile workers are prevented from being hurt by gas and dust.

Description

[0001] technology neighborhood [0002] The invention relates to the technical field of 3D printing equipment, in particular to a 3D printing equipment capable of real-time monitoring of benzene pollutants in printing. Background technique [0003] 3D printer is a kind of rapid prototyping machine. Based on digital model files, it uses plastic, metal and other materials that can be bonded to construct digital model objects by layer-by-layer printing. The biggest difference from traditional printers is that it uses "Ink" is the raw material of real objects. With the rapid development of 3D printing, various 3D printing materials emerge in an endless stream, and their quality is also uneven. If the quality of printing materials is not up to standard, especially plastic materials, the printing process will produce a lot of harmful gases, which will not only pollute the environment, but also endanger the health of personnel. [0004] Therefore, there is an urgent need for a prin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/153B29C64/386B29C64/393B22F3/105B33Y50/00B33Y50/02
CPCB33Y50/00B33Y50/02B22F10/00B22F12/42B22F12/67B22F12/90B22F10/32B22F10/28Y02P10/25
Inventor 不公告发明人
Owner 广州达通光电科技有限公司
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