Polymers welding methods including biodegradable materials

The compression properties of welded seams depending on welding parameters using the hot wedge and hot air welding technique, ultrasonic welding technique, and high-frequency welding technique were studied. The compression properties, expressed by parameters such as compressional energy WC, compressional resilience RC, linearity LC, and compressibility C, are important information about the welded seam quality in terms of touch, voluminosity, stiffness, and flexibility of the welded seam. KES-FB and FAST measurement systems were used to test the compression properties of the welded seams. Based on the analysis of the results obtained, the influence of the welding parameters on the compression properties of the welded seam was determined. The results of the investigation showed that improperly selected welding parameters, such as the supply or introduction of too much heat into the material to be welded or too long exposure of the material in the weld zone to heat, result in welded seams with expressive extrusion edges, which affects the quality of the welded seams. These welded seams have very low values of compressional resilience RC and very high values of compressional energy WC and compressibility C.

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“…14 With these welding techniques, several different materials with different thermoplastic properties can be joined in one welded seam. 15…”

Section: High-frequency Weldingmentioning

confidence: 99%

Study of the compression properties of welded seams formed using hot wedge, hot air, ultrasonic, and high-frequency welding techniques

Marcelić

Geršak

Rogale

et al. 2022

Textile Research Journal

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“…in turn, chemically hardenable and thermosetting materials or some of thermoplastic polymers (e.g. PVC, PMMA) are joined by gluing and laminating [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Kalwik,

Mordal,

Redutko

2020

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AnAlysis of ChAnges in the ProPerties of PolymeriC ComPonents Joined by resistAnCe WeldingThe article has been devoted to issues connected with socket fusion welding, which is next to welding one of the methods of thermoplastic polymers joining. in this paper, the research was presented, which the aim was analysis of quality of joints obtained as a result of resistance welding of polypropylene pipes with diameter ø20 in the temperature range of 200÷230°C. To that end a Testo thermal imaging camera was used, flexural strength of the combined components was tested as well as the received weld was observed under a stereoscopic microscope. Conducted studies showed that the best results of joint are obtained during welding at 220°C and 230°C, while lower temperatures did not fully perform their function during the process of joining the pipe elements.

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Polymers welding methods including biodegradable materials

Cited by 2 publications

References 25 publications

Study of the compression properties of welded seams formed using hot wedge, hot air, ultrasonic, and high-frequency welding techniques

Study of the compression properties of welded seams formed using hot wedge, hot air, ultrasonic, and high-frequency welding techniques

Archives of Metallurgy and Materials

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