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Lamination Press Stable And Durable
Jul 07, 2017

Lamination Press PV module processing technology is an important part of the solar photovoltaic industry chain, by a thin piece of solar cell packaging, so that it can be in the harsh outdoor environment reliable operation. The current mainstream PV module processing technology used in the form of packaging is EVA film package, which by the battery chip detection, battery chip soldering, battery chip welding, component stacking,Lamination Press component lamination, installation of the border and installation of the junction box, finished product testing and Packaging and other multi-channel process composition. The process is interlocking, therefore, the level of the process level of a direct impact on product quality and grade. First, the PV module processing technology

The first process is battery test

As the main raw material of PV module processing - the performance of the battery chip directly determines the quality of the PV module is good or bad, therefore, in addition to its appearance, color and resistivity detection, but also test the battery in a specific light,Lamination Press the temperature conditions of the output Current, output voltage and stability and durability parameters, its testing is mainly through professional equipment and equipment to complete.

second process for the battery chip single-chip welding

Welding, the left hand pinching pressure welding with one end of about 1/3, the welding tape flat on the main grid of the battery chip line, the other end of the tape touch the battery on the grid line;Lamination Press right hand to get iron, from left to Right force evenly along the welding belt gently welding. When welding, the starting point of the tip should be on the left side of the monolithic, the soldering tip should always be in close contact with the welding tape. Welding should be solid, no burr, no Weld and tin slag, the surface smooth and beautiful.

third process for the battery chip string welding

Operation process: the provisions of the number of welding has been a good piece of the battery, the back row on the template, with one hand light to suppress the two pieces of battery, so that it is attached to the heating template, close to each other, in accordance with the provisions of spacing 0.5 mm) The solder strips from the latter cell are soldered to the back electrode of the previous cell with a soldering iron. In the welding requirements of the welding of solder joints, the appearance of straight, no protruding solder pimple, no Weld phenomenon,

The fourth step is a stack

The tempered glass carried to the stacking table, tempered glass suede up, in the tempered glass tile layer of EVA. EVA in the glass on the edge of the glass ≥ 5mm; Note that the EVA surface to the tempered glass suede, EVA placed in line with the component plate type positioning template, the battery string, respectively, with the head and tail template corresponding, according to the template On the identification of the positive and negative symbols, the battery string placed correctly on the EVA, the battery string of anti-reflective film face down. After the battery string is placed in place, the distance of the battery chip is measured with the steel plate gauge according to the pattern requirement and the positioning template, and the position of the battery string is adjusted. According to the component splicing diagram and voltage requirements, the correct welding convergence zone,Lamination Press the bar code affixed to the specified location. Paved EVA, the suede toward the battery string, and then paved the TPT. EL test, to confirm no crack, Weld, desoldering, black film and other bad.

The fifth step is laminating.

According to the characteristics of the laminating machine to start the laminator, according to the characteristics of EVA to adjust the temperature and pumping time, in the operation record on the record temperature, pressure and other technical parameters; in the laminator inside the heating plate l layer of high temperature non-stick Cloth, will splice the good components of the tempered glass down to the middle of the heating plate, and then put a layer of high temperature non-stick cloth, press the lid button, laminator into the automatic control system. When the lamination is finished, the laminator automatically opens the lid and removes the finished part. Requiring components within the chip without foreign body, debris, cracks and so on.

Step 6 for framing

In the aluminum alloy groove groove evenly marked with silica gel, the components embedded in the aluminum alloy groove, start the frame to complete the frame. In the back of the module TPT and aluminum alloy at the junction of evenly coated with silica gel, in the corresponding specifications of the junction box and the root of the lead wire, around the uniform silicone, glue the junction box,Lamination Press the lead access to the junction box. Curing at room temperature at a certain humidity. Requirements; border installation is not bending, aluminum alloy right angle connection gap is not 0.2mm, aluminum alloy box 2 diagonal error of less than 4 mm.

7th process for cleaning

Step 7 for cleaning. Tear off the plastic film on the surface of the aluminum, and use alcohol to clean the surface of the various components of the pollutants to ensure that the appearance of clean and dirty components. The 8th step is a finished component test. In accordance with the solar module tester operating procedures for testing, first with the standard components in the same environment on the solar module tester calibration, and do a good job of calibration records, into the PV modules to be tested, connect the positive and negative,Lamination Press the components to test , Through comparison and analysis, calculate the electrical performance parameters of components, and record.