GRPU composite material Solar Frame

Performance Advantages

GRPU composite material frames have excellent high corrosion resistance and high salt spray resistance, which overcomes salt spray, acid and alkali corrosion, and is the only choice for photovoltaic module frames in corrosion-resistant application scenarios such as oceans and sewage treatment plants.

GRPU composite material frames also have an expansion coefficient that is almost the same as that of glass, which completely solves the problem of module deformation from the manufacturing plant to cold areas

GRPU composite materials themselves have shock absorption and damping properties, which can effectively alleviate the problem of double-glass module back panel glass bursting under high-frequency dynamic loads.

 GRPU composite material frames have excellent insulation performance and multiple colors, which are also the first choice for BIPV power generation. According to the national standard GB/T 36963-2018 "Technical Specification for Lightning Protection of Photovoltaic Building Integrated System", GRPU photovoltaic frames are insulating components, do not need to be grounded, save installation costs, and are more cost-effective.

The carbon footprint of the GRPU composite frame over its entire life cycle is only 12-15% of that of the traditional aluminum alloy frame, which is consistent with the concept of ecological, green, circular and sustainable development that Green Clean Energy has always adhered to. The GRPU composite frame not only has excellent performance, but also has a competitive advantage in price, which can further reduce the cost of power generation.

Jiangyin Zhonghao energy Technology Co., LTD was established in 2020, .Our company primarily engages in the research and development, manufacturing, and application of solar frame products, automated frame production lines, and green energy structural materials. Its main products include photovoltaic frame products, building-integrated photovoltaic (BIPV) products, and photovoltaic support structures. Zhonghao Energy Technology Co., LTD products are known for their lightweight, high stability, excellent weather resistance, and strong corrosion resistance, and are widely used in the photovoltaic field.

Zhonghao Energy Technology is committed to meeting the development needs of the solar energy market in China, actively researching new products and continuously improving new technologies. . The company has established long-term and stable cooperative relationships with several leading component manufacturers, continuously enhancing its core competitiveness and market share. Its products have passed multiple international certifications, including ISO 9001:2015 Quality Management System and ISO 14001:2015 Environmental Management System certifications. The products are popular both domestically and internationally, with 70% primarily sold to high-end markets in the Middle East, Japan, South Korea, Singapore, India, Vietnam, and Thailand.

Corporate Visio:         Be a great enterprise

Corporate Mission：Develop solar energy for the benefit of all mankind -

Enterprise Spirit：  Sincerity, Simplicity, Reverence, Gratitude

Enterprise Belief：  Be an upright person and work conscientiously

Factory Certificate:

Production process:

The solar panel frame is the key supporting structure of the photovoltaic module. It is mainly made of aluminum alloy materials and has the characteristics of light weight, corrosion resistance and high strength. The production process can be divided into the following core links:

1. ‌Raw material preparation and profile extrusion ‌

Aluminum alloy selection ‌: Commonly used 6063-T5 or 6061-T6 aluminum alloys must meet the requirements of tensile strength (≥160MPa) and elongation (≥8%).

Extrusion molding ‌: The aluminum rod is heated to 450-500℃ through a mold and then extruded into a profile with a specific cross-sectional shape, followed by air-cooling quenching to increase hardness.

2. ‌Heat treatment and aging strengthening ‌

Aging treatment ‌: The extruded profile needs to be kept in an aging furnace at about 200℃ for 4-6 hours to allow the alloy elements to precipitate evenly and significantly improve the mechanical properties (such as hardness increase by more than 30%).

3. ‌Surface treatment (anodization) ‌

Sandblasting pretreatment ‌: Sandblasting is used to remove surface impurities and increase roughness to enhance the adhesion of the oxide layer.

Anodizing: Electricity is applied in sulfuric acid electrolyte to generate a 15-25μm thick oxide film to improve corrosion resistance (salt spray test can reach more than 1000 hours). Black or other color oxidation can be selected to meet aesthetic requirements.

4. ‌Precision machining‌

Cutting: Use a 45° bevel double-head saw to cut the profile to the required length of the component, with an accuracy control within ±0.5mm.

Punching and slotting: Fully automatic punching machine processes mounting holes and slots (such as the slot design mentioned in the patent for anti-dust accumulation structure).

5. ‌Assembly and quality control‌

Corner fixing: The four corners of the frame are connected by stainless steel corners, and triple inspection is used to ensure verticality and airtightness.

Inspection standards‌: Including dimensional tolerance (such as ±0.2mm), oxide film thickness detection (spectrophotometer), and EL test (check for hidden cracks).

6. ‌Packaging and anti-damage design‌

Film protection: PE protective film is applied to the surface to prevent scratches during transportation.

Interlayer winding: Each frame is separated by a paper interlayer to avoid friction damage. Anti-dust accumulation design: For example, the "guide surface + card slot" structure in Tongwei Solar's patent achieves self-cleaning by optimizing the frame shape, reducing operation and maintenance costs.