Photovoltaic (PV) Frame Pultrusion Mold

Product description:

This mold is a photovoltaic frame mold, which adopts the production process of high-pressure glue injection for the upper and lower two pieces of mat. The mold tolerance is controlled within ±0.1mm to ensure that the frame can be perfectly matched with the photovoltaic module glass, backsheet and installation system.

Mold Structure

1.Preformed Section:

Further compact and neatly arrange the fiber bundles, and more precisely shape the initial form to prepare for entering the heating curing section.

2.Heating and curing section:

The cavity is precisely equal to the size of the final product.
The exterior of the mold is heated by a heating plate system, providing the precise temperature required for resin curing (typically within the range of 120°C - 200°C depending on the resin system).
The fiber bundles impregnated with resin are heated in this section, and the resin undergoes a cross-linking and curing reaction, forming a hard composite material structure.

3.cooling section:

The cavity size has been slightly adjusted compared to the curing section.
Cooling water is passed through to cool and set the cured profiles, ensuring their dimensions are stable and they have sufficient strength to be pulled out of the mold without deformation.
Our company developed a preforming and immersion tank cooling equipment independently, it can stably produce for 15 days under the premise of ensuring the qualification rate, and the pultrusion speed can reach more than 2mm per minute.

Typical Application

New energy, photovoltaic power generation

The following customization options can be made according to different needs

FAQ

Q1: What is a PV frame pultrusion mold?
A1: It is a high-precision continuous pultrusion mold specially designed for FRP and polyurethane photovoltaic frame profiles. It adopts constant-temperature shaping and high-pressure filling technology to realize stable, high-speed and high-precision mass production of solar panel frames.

Q2: What surface treatment is applied to the mold cavity?
A2: The mold cavity adopts ultra-fine polishing or mirror electroplating treatment, with surface roughness Ra ≤ 0.08μm. It effectively prevents resin adhesion, ensures super smooth frame surface and reduces subsequent polishing workload.

Q3: Is the mold compatible with different PU/FRP raw materials?
A3: The mold features strong material compatibility. It adapts to various polyurethane and FRP resin formulas. Runner structure and heating parameters can be adjusted to match different fluidity and curing speeds for stable forming.

Q4: What quality features do finished PV frames have?
A4: The pultruded PV frames feature high surface smoothness, precise dimension, stable straightness, no burrs and no deformation. They have excellent weather resistance, aging resistance and structural stability for outdoor photovoltaic power stations.Q3: Is the mold compatible with different PU/FRP raw materials?