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Anshan Heli Laser Equipment Co., Ltd.

National Service Hotline : 400-641-6888

Address: No. 368 Qianshan Road, High-tech Zone, Anshan City

Dongguan Heli Laser Equipment Co., Ltd.

Address: No. 48 Wenxiang Road, Xiaoxiang, Wanjiang District, Dongguan City, Guangdong Province

Phone: 0769-88879968

0769-21661919

Fax: 0769-21665152

Contact: Mr. Yang

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Laser welding and ultrasonic welding are the two main processes currently used in solar collector welding

Release time: 2019.09.03 News source: Laser cutting machine | Laser marking machine | Laser engraving machine | Fiber laser marking machine | Laser equipment manufacturer-Dongguan Heli Laser Equipment Co., Ltd. Browse times:
Solar water heaters, solar stoves, solar dryers, and many other devices that use solar energy have been used by many people. These devices have a key part—the collector.

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The role of the collector is to collect the scattered solar radiation energy. Common collectors are flat collectors and concentrating collectors. In the following, a flat plate collector widely used in solar water heaters is taken as an example to discuss the influence of the welding process on the heat transfer efficiency of the solar collector.

Ultrasonic welding and laser welding

Laser welding and ultrasonic welding are the two main processes currently used in solar collector welding.

Ultrasonic welding is the use of mechanical vibration energy of ultrasonic frequency (over 16KHz). Under pressure, the two metal surfaces are rubbed against each other to form a molecular layer infiltration. Close to cold working.

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Laser welding is the use of high-energy laser pulses to locally heat materials in small areas. Energy is diffused into the interior of the material through thermal conduction, and the material is melted to form a specific molten pool to achieve the purpose of welding. Belongs to thermal processing.

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Compared with ultrasonic welding, laser welding has the advantage that it does not need to apply pressure to the workpiece to be welded, so the overall deformation of the workpiece is small, and the integrity of the surface of the endothermic coating is maximized.

Effect of welding process on heat transfer efficiency of collector

The most direct judgment method for the performance of flat solar products is the heating efficiency of the water tank. The heating efficiency of the water tank is affected by a series of factors, and the heat absorption plate is the most important factor. Laser welding is used to weld the solar collector plate core runner with a highly selective endothermic coating. Weld a spot a few millimeters apart on the endothermic coating to combine strength and completeness of the endothermic coating. Makes the board core have higher heat absorption efficiency.

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Nowadays, the problem of climate warming is becoming increasingly serious, and energy supply is becoming increasingly tight. The efficient development and utilization of solar energy is imminent. In order to adapt to the rapid development of the solar collector industry market, many manufacturers have developed their own branded optical fiber transmission laser welding machines . More advanced welding processes will further improve the heat transfer efficiency of solar collectors. At present, these fiber transmission laser welding machines have occupied most of the solar collector welding market. The rapid development of optical fiber transmission laser welding machines has also driven the development of laser equipment refrigeration industry.

Laser cutting machine | laser marking machine | laser engraving machine | fiber laser marking machine | laser equipment brand manufacturer , Basically covering all mature laser welding machine brand equipment. With the advantage of stable quality, it has gradually developed into a standard product for batch modular production. Last year, the annual shipment of the special domain chiller exceeded 60,000 units, winning the recognition of thousands of users!
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