This study investigates the influence of technological parameters on the strength of polypropylene (PP) film seals used in industrial packaging applications. The effects of sealing temperature, sealing time, and jaw clamping pressure on seal strength were analyzed using a five-level response surface experimental design supported by finite element simulations and regression-based optimization. A polynomial regression model with a coefficient of determination of R² = 0.9203 was developed to predict seal strength. The results demonstrated that sealing temperature and sealing time were the dominant process parameters affecting joint strength, while jaw pressure had a comparatively minor influence within the investigated range. No effective seal formation was observed below approximately 100 °C. The optimal process parameters were identified as T = 141.14 °C, t = 2.14 s, and p = 4.65 bar, resulting in an experimentally verified maximum joint strength of Fmax = 33.7 ± 0.4 N. The proposed experimental-numerical methodology can support the optimization of industrial PP film sealing processes and facilitate the selection of process parameters for similar packaging applications.
Hydrogen circulation pumps in industrial manufacturing equipment face typical sealing challenges at the shaft end. Due to the small molecular diameter and high diffusivity of hydrogen, a single improvement approach cannot adequately enhance sealing performance. While previous studies have largely focused on material mo...
The development of additive technologies and polymer materials opens up new applications in mechanical engineering, particularly in turbine engineering. For instance, studies have already demonstrated the potential of using polyamide parts manufactured by SLS printing for low-flow turbine stages, with experimental inve...
V. Barskov, M. Laptev, I. Nurkov et al.· Safety and Reliability of Po...· 0 citations
Metal additive manufacturing based on Fused Filament Fabrication (FFF) of metal-filled polymers is emerging as a cost-effective alternative to conventional processes such as Metal Injection Molding (MIM), but its industrial relevance remains limited by challenges in densification and mechanical performance. This study...
T. L. Le Néel, Mint Abat Ahmed El Hadi, P. Féraud et al.· Journal of Manufacturing and...· 0 citations
ABSTRACT The components of the sealant are diverse and complex, and there are differences in the relative molecular weight and solubility parameters of each component, which is a thermo-dynamic unstable system. Under long-term static storage and service conditions, the joint sealant is prone to automatic condensation a...
Da-Di Chen, Ling-Wen Li, Chen Yang et al.· Matéria· 0 citations
In this study, the tribological performance of A7075 aluminum matrix composites reinforced with 5% B4C was investigated using the dry pin-on-disk method in accordance with the ASTM G99 standard. The effect of three different loads (10, 20, 30 N) and three different sliding speeds (1, 1.5, 2 m/s) on wear behavior was ev...
Musa Yılmaz, M. Ekrem· Journal of Boron· 0 citations
To improve the durability of the chip seal and reduce the chip loss rate, a sand-containing fog seal was covered on its surface, and the response surface methodology (RSM) was adopted to optimize the mix proportion. The amount of emulsified asphalt and sand-binder ratio were selected as key factors, and experimental re...
Jun’an Lei, Xiaoyu Jiang, Qi-Liang Liu et al.· PLoS ONE· 0 citations
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