Comparison research on spectral emissivity of three copper alloys during oxidation

Xu, Yanfen; Zhang, Kaihua; Tian, Zhuangtao; Tong, Ruirui; Yu, Kun; Liu, Yufang

doi:10.1016/j.infrared.2022.104344

Cited by 6 publications

(1 citation statement)

References 26 publications

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“…8a and 8b respectively and the current temperature is 730 °C measured by thermocouples spot welded on the part surface. The emissivity can be regarded as a constant value when the surface temperature was in the range of 670 °C and 760 °C, which has been acknowledged in engineering practice [15,16]. A fixed emissivity value of 0.61, which is widely accepted in industrial temperature measurement for boron steels, was assigned to the whole thermograph in Fig.…”

Section: Industrial Applicationmentioning

confidence: 99%

An Infrared Temperature Measurement Method for Hot Stamping Parts Considering Directional Emissivity

Gu¹,

Zhao²,

Wang³

et al. 2023

Atlantis Highlights in Materials Science and Technology

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Infrared temperature measurement technology is widely used in the detection of surface temperature distribution of hot stamping parts. However, the accurate infrared temperature measurement for complex parts is still a problem due to the deviation of emissivity. In this study, a novel directional emissivity calibration was proposed for 22MnB5 hot stamping steel. A mathematical model considering directional emissivity was established and verified. Based on the projection and interpolation method, the directional emissivity is assigned to each pixel in the thermograph shot by infrared thermal imager. Finally, a high measurement precision within ± 25 °C was achieved for temperature measurement on 22MnB5 hot stamping parts.

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Section: Industrial Applicationmentioning

confidence: 99%