Effect of process parameters and talc ratio on hot plate welding of polypropylene

Taşkıran, Emin; Sayer, Sami; Özes, Çiçek; Yeni, Çınar; Ülker, Aydın

doi:10.1002/mawe.201500438

Cited by 10 publications

(14 citation statements)

References 21 publications

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“…Plate temperature (PT) and heating time (HT) were considered as hot plate welding process parameters. Each factor and its working range were selected based on experts' opinions, preliminary experimental results and industrially recommended hot plate welding process parameters used in literature .…”

Section: Methodsmentioning

confidence: 99%

“…In the first step, the experiments have been initiated with setting the parameters welding displacement (WD) and welding time (WT). WD was calculated as approximately 1 mm according to the literature and WT was set to 90 s as determined from initial experiments . At the levels below this value, bending of specimens occurs since the gripping tools set apart before the weld region cools down and regains its rigidity.…”

Section: Methodsmentioning

confidence: 99%

“… Schematic diagram of hot plate welding machine Schematische Darstellung der Heizelementschweißmaschine …”

Section: Materials and Equipmentunclassified

“…The heated surfaces of the specimens are contacted with each other until the preset welding time and welding displacement values are reached. Afterwards, welded specimen is removed from the machine by retracting the horizontally moving pistons .…”

Section: Materials and Equipmentmentioning

confidence: 99%

“…The purpose of this study is to determine the optimum hot plate welding parameters for the high filling ratio of 40 % calcite filled polypropylene (PPC 40) and compare it to 40 % talc filled polypropylene (PPT 40) in which the optimum hot plate welding parameters were determined in a previous study . Plate temperature (PT) and heating time (HT) are considered as the hot plate welding process parameters and their effect on the weld strength are investigated.…”

Section: Introductionmentioning

confidence: 99%

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Effect of high filling ratio on the weld strength of hot plate welded calcite filled polypropylene and its comparison with talc filling

Özes

Sayer

Yeni

et al. 2016

Materialwissenschaft Werkst

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In this paper, the effect of the hot plate welding parameters on the weld strength of 40 % calcite filled polypropylene were investigated by utilizing design of experiment and compared to talc filled polypropylene. The plate temperature and the heating time were considered as the process parameters. A mathematical predictive model of the weld strength was developed in terms of welding parameters. The results show that the mathematical model correlates well with the experimental results. The optimum welding parameters of calcite filled polypropylene are determined as 260°C of plate temperature and heating time of 25 s. The welding strength of the joint welded at optimum parameters is found as 18.32 MPa. Hot plate welding efficiency of the 40 % calcite filled polypropylene is observed to be higher than 40 % talc filled polypropylene material.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“… Schematic diagram of hot plate welding machine Schematische Darstellung der Heizelementschweißmaschine …”

Section: Materials and Equipmentunclassified

Section: Materials and Equipmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effect of high filling ratio on the weld strength of hot plate welded calcite filled polypropylene and its comparison with talc filling

Özes

Sayer

Yeni

et al. 2016

Materialwissenschaft Werkst

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Influence of process variables on the characteristics of friction‐stir‐welded polyamide 6,6 joints

Nandhini

Moorthy

Muthukumaran

et al. 2019

Materialwissenschaft Werkst

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This paper aims to study the feasibility of friction stir welding of thermoplastic material polyamide 6,6. The maximum joint strength achieved through the optimized process variables is 41 MPa. The maximum temperature rise of 126 °C is achieved and the weld nugget exhibits a hardness of 69 D on Shore hardness scale. Fractography analysis reveals that the fracture followed a continuous plastic flow comprising less prominent fibrillation and more elongated voids. An increase in glass transition temperature Tg is observed in the weld specimen. The impact of the welding process variables on the frequency and band shift of the functional groups of the polymer is also discussed.

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Thermal expansion of high‐density polyethylene in hot plate welding applications

Novakovic,

Kashkoush,

ElMaraghy

2023

Polymer Engineering & Sci

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This research studies high‐density polyethylene (HDPE) behavior that is not easily identifiable in a production setting, but is, nevertheless, necessary for consideration when specifying equipment performance for hot plate welding (HPW) applications. Thermal expansion in polymers can depend on several factors, such as the specific type of polymer, its degree of cross‐linking, and the temperature range over which the expansion occurs. This physical behavior can affect the process by prolonging the cycle time if the equipment is not sized correctly for the application. This research uses HDPE samples with different surface areas and varying process parameters (force and temperature) to collect data on the sample size change. Experimental results are compared with a recommended industrial guideline of 0.2 to 0.5 MPa of pressure for the Matching stage (stage for surface conformation). Obtained findings indicate that this industrial guideline is very temperature dependent. Data collected in the experiment were used to develop a mathematical model for thermal expansion under different parameters. This study also presents a visual interpretation of HDPE behavior on the effect of temperature if the pressure is increased or decreased.

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Effect of process parameters and talc ratio on hot plate welding of polypropylene

Cited by 10 publications

References 21 publications

Effect of high filling ratio on the weld strength of hot plate welded calcite filled polypropylene and its comparison with talc filling

Effect of high filling ratio on the weld strength of hot plate welded calcite filled polypropylene and its comparison with talc filling

Influence of process variables on the characteristics of friction‐stir‐welded polyamide 6,6 joints

Thermal expansion of high‐density polyethylene in hot plate welding applications

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