Description

The nozzle on PV module framing sealant dispensers is small yet critical. It precisely guides and controls the flow of sealants like silicone or structural adhesive. This ensures a uniform, continuous, and adequate bead in the frame channel. It achieves reliable sealing, bonding, and insulation.

effect

Precise control of adhesive quantity and flow direction.

The nozzle ensures precise adhesive distribution to the groove’s bottom and sidewalls. It prevents excessive flow to the front, which may affect appearance. It also prevents insufficient flow to the back, causing poor sealing. The nozzle uses differently sized outlets on both sides and a 5°-30° tilt for differential distribution.

Ensure the colloid is evenly distributed.

It forms a uniform, unbroken sealant line along the entire profile length. It specifically prevents gaps at the four corner areas. Optimizing the outlet shape, like flat or semi-elliptical, ensures smooth adhesive flow. Coordinating with the automated equipment’s steady motion achieves consistency.

Prevent adhesive shortage and adhesive overflow.

It precisely confines the adhesive flow area. This prevents overflow onto the glass or backsheet. Overflow affects aesthetics and increases cleaning costs. The nozzle’s “arc-shaped limit part” physically conforms to the component edge. This guides and restricts the adhesive path.

Improve the efficiency of automated production.

It serves as the automated dispenser’s end effector. This component is key for high repeatability and rapid, unmanned production. As a standard interface, it integrates with the machine. It follows program control to ensure identical bead paths and volumes for every module.

Ensuring long-term sealing reliability.

It forms a full and well-shaped sealing layer to block moisture and dust effectively. A uniform, bubble-free, and continuous bead serves as the physical foundation for long-term waterproof sealing.

The nozzle is a consumable item. Its interior can clog from cured adhesive. The outlet may wear or deform from friction with the profile. Regular inspection, cleaning, and replacement are necessary. This maintains optimal dispensing quality. Metal nozzle offer a longer lifespan. Nylon nozzle have lower costs.

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