Flat-type solar collector is the largest in China to promote the use of a solar collector.。 According to board structure in the form of heat can be divided into: the plate, corrugated-Bian cassette, such as wing.
 (A) of the plate-core production
The plate solar collector is the body absorbs heat from a row of parallel and from top to bottom row of two sets of component connection. To increase the effect of heat, again with a row of metal plate in close connection with endothermic.
 (B) winged solar collector plate core production
 Winged solar collector the Tube is hot extrusion stretch into winged aluminum tubes, and it similar to the plate, the difference is that its row with the extension of the film is one.  Al-wing of the specialized aluminum processing plant production.  Winged solar collector plates from the core set of wings, and welded together, a set of Ф40 mm, the thickness of 2 mm aluminum tubes, by the specialized wing of the plant.  To set the welding, solar manufacturers to remove part of aluminum wing.  For mass production, can do for mold, and stamping presses.  If the output of little use manual processing.  Wing-core collector plates in the production of key welding.  Most of the general use of welding oxygen welding.  Solar collector thermal performance depends primarily on the merits of the plate between the resistance and the resistance of the liquid.  Winged solar collector using hot extrusion stretch forming process of Pipe and greatly reduce the cubicles of the combination of heat resistance; Third high thermal conductivity of aluminum, to reduce the thermal resistance of the liquid.  Therefore, the wing collector of high thermal efficiency.  Wing collector points less overall welding, and welding materials are the same, compact, mechanical strength, and confined for up to 600,000 Pa. Wing collector diameter relatively coarse, thick wall, the small circle resistance, antifreeze and strong.  Wing collector because of material is aluminum, wood higher for the neutral water, otherwise vulnerable to electrochemical corrosion phenomenon, a leak, but in normal circumstances is difficult to repair.
(C) corrugated solar collector plate core production
 Corrugated solar heat collector plate appearance was watts Leng shape.  Absorbs heat from the row of corrugated board and corrugated plate of a parallel, communication, access and set the connection from top to bottom, water from the corrugated channel mid-stream.
(4) Chen Shui-bian cassette collector plate core production
 Chen Shui-bian cassette solar collector the shape of many species, its basic form is a row of parallel flat box sets from top to bottom and from the connection.  Endothermic material available 0.5-1 mm galvanized iron sheet, and corrugated-collector of corrugated board, the first with mold on the pressure in the press box into a flat, plus or minus two welded together, often using high-frequency welding spot welding or roller, To enhance the ability of the Chen Shui-bian weighed on the box, and set the edge of the use of welding gas welding, the purpose is to increase the compression capacity and prevent leakage.  With economic development, is now some manufacturers began to use the 0.3-0.5 mm stainless steel materials to heat and die in the design, to suppress the Chen Shui-bian at the box from top to bottom with a set of repression, from top to bottom by welding two Integrity has become a collector of all stainless steel, welding the blame for using argon arc welding. 。 With the continuous rising prices of metal materials and chemical industry development, Chen Shui-bian began to appear plastic cassette solar collector.  Most of the current heat used to add Fang Laohua of polyethylene and carbon black as raw materials, use of large injection molding machines blowing bulging shape, forming after both black there is no need for further spraying layer, the whole production process all automated.  Such as the use of a leak damaged, simply put the old collector machines, a few minutes later to be a new collector.  No matter what form of solar collector plate movements, one by one in the assembly should be before the pressure test, pressure test use of air charge to the collector approach.  First Plug with special tools, the four collector mouth shut, and then through the inflatable air compressor to the collector, in addition to the corrugated-collector.  General inflated to 400,000 Pa. After the gas filling good of the whole immersion in water-collector 3-5 seconds, check for leakage.