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2023-11

Bonding Method for Teflon Conveyor Belt Joints

1. When installing the high-temperature fabric onto the laminating machine, ensure that the surface of the fabric remains perfectly flat throughout the entire process—no wrinkles are allowed. Otherwise, creases may form on the laminated surface, reducing its service life. 2. During operation, if EVA adhesive or other residues adhere to the surface of the laminator’s high-temperature fabric, be sure to wipe them clean with a slightly damp cotton cloth, especially any EVA that has stuck in the central area. 3. It is normal for Teflon high-temperature fabrics used in laminators for solar photovoltaic modules to vary in color between different batches; however, this does not affect product quality or performance. 4. Here we will focus on the lapping method: before heat-sealing the Teflon conveyor belt, first prepare a high-temperature iron or a constant-temperature iron and heat it to 390°C for later use. While the iron is heating up, use alcohol to thoroughly clean the joint area of the Teflon high-temperature fabric, removing any dirt or grime to ensure a stronger bond at the joint. In addition, place a flat, heat-resistant, non-conductive pad beneath the joint area; a common choice is a rigid plastic board covered with fiberglass cloth or Teflon tape. Once the preparatory work is complete, you can begin heat-sealing the joint. To seal the joint, apply a joint adhesive (F46 film, transparent in appearance) between the two layers of the conveyor belt and verify that the overlap at the joint is uniform. Finally, slowly move the iron back and forth over the joint area, pausing for about one minute per pass, until the joint is firmly bonded. Polytetrafluoroethylene (PTFE) film is highly heat-resistant and has an extremely low coefficient of friction, making it ideal not only as a lubricant but also as a coating for the inner lining of water pipes due to its easy-clean properties. Localized rubber vulcanization: Use a small vulcanizing device to vulcanize localized damaged areas. However, due to the size limitations of the vulcanizing device, the repair speed is only about 0.5 meters per hour, making this method unsuitable for long-distance repairs.

2023-11-13

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