The aim of this paper is the comparison of the thermal destruction course of one of the commercially available binders applied in the ALPHASET technology in dependence of the temperature, heating rate and the character of the atmosphere (inert, oxidising or reducing). The thermogravimetric analysis/differential scanning calorimetry/Fourier-transform infrared spectroscopy (TG/DSC/FTIR) system allowed for real-time analysis of the composition and intensity of gases emitted during slow heating in the inert and oxidising atmospheres. In addition, the TG/DTG/DSC investigation of the binder was performed in the reducing atmosphere. The pyrolysis gas chromatography coupled with mass spectrometry system allowed for the analysis of gases evolved at very fast heating in the inert atmosphere (pyrolysis) as a function of temperature. It has been proven that the type and amount of the gases emitted is highly dependent on the temperature, heating rate and the atmosphere in which it is performed. The highest versatility of harmful volatiles is produced during heating in the inert atmosphere. This type of atmosphere is present in the closest proximity of the liquid metal. Thus, to reduce the risk of exposure of the foundry workers, the extraction of the casting should be done under the hood, and sufficient personal protective equipment should be used.

中文翻译：

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评估铸造粘合剂的热解和燃烧产物：金属铸造中的潜在危害

本文的目的是根据温度，加热速率和气氛（惰性，氧化或还原）特性，比较ALPHASET技术中使用的一种市售粘合剂的热破坏过程。热重分析/差示扫描量热法/傅立叶变换红外光谱（TG / DSC / FTIR）系统可以实时分析在惰性和氧化气氛中缓慢加热期间释放出的气体的成分和强度。另外，在还原性气氛中进行粘合剂的TG / DTG / DSC研究。热解气相色谱仪与质谱系统相结合，可以分析在惰性气氛中以非常快的速度加热时产生的气体（热解）随温度的变化。业已证明，所排放气体的类型和数量在很大程度上取决于温度，加热速率和所处的气氛。在惰性气氛中加热过程中会产生最高的有害挥发物通用性。这种类型的气氛最接近液态金属。因此，为降低铸造工人暴露的风险，应在引擎盖下抽出铸件，并应使用足够的个人防护设备。