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WANG Pan, HAO Xiaojian, ZHOU Hanchang, YAN Bai. Colorimetric temperature measurement device based on ignition point test of magnesium alloy[J]. LASER TECHNOLOGY, 2014, 38(4): 459-462. DOI: 10.7510/jgjs.issn.1001-3806.2014.04.006
Citation: WANG Pan, HAO Xiaojian, ZHOU Hanchang, YAN Bai. Colorimetric temperature measurement device based on ignition point test of magnesium alloy[J]. LASER TECHNOLOGY, 2014, 38(4): 459-462. DOI: 10.7510/jgjs.issn.1001-3806.2014.04.006
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Colorimetric temperature measurement device based on ignition point test of magnesium alloy

  • National Key Laboratory for Electronic Measurement Technology, North Univeristy of China, Taiyuan 030051, China

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  • Received Date: August 22, 2013
  • Revised Date: November 03, 2013
  • Published Date: July 24, 2014
    Graphical Abstract
    • Abstract
  • To solve the measurement of ignition point, the key parameter of ignition-proof magnesium alloy, the colorimetric temperature measurement method was used for the theoretical analysis and experimental verification. A colorimetric temperature measurement device with new structure was designed. The time of the ignition of magnesium alloy was determined from the mutation point of optical radiant energy received by the temperature measurement device and then the ignition temperature was obtained. The static calibration coefficients were gotten from the static calibration of the moderate temperature blackbody furnace. Moderate temperature blackbody furnace was utilized to calibrate statically to obtain static calibration coefficient. Magnesium alloy was ignited with an electrical heating slice resistance with the advantages of simple operation, saving time and test materials. The results of the ignition test of AZ80 with Nd (mass fraction of 0.0075) by colorimetric temperature measurement device and infrared thermometer were 1164.7K and 1148.2K, respectively, whose relative error was 1.4%. The results show that this method solves the difficulty of testing the ignition point of magnesium alloy successfully and has very important reference value for the related research of flame retardant magnesium and on-line monitoring of magnesium alloy smelting.
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    • References (12)
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