Product Description Usually composed of baffles, fins, seals, and deflectors. Place fins, baffles and seals between two adjacent partitions to form an interlayer, called a channel. This interlayer is stacked according to different ways of fluid, and brazed into a whole to form a plate bundle. The plate bundle is a plate. The core of the fin heat exchanger, coupled with the necessary heads, pipes, supports, etc., constitute the plate-fin heat exchanger. The main components of a typical plate-fin heat exchanger are fins, partitions, seals, guide vanes and heads. 1.Fin The fin is the basic element of the aluminum plate-fin heat exchanger. The heat transfer process is mainly completed by the heat transfer between the fin and the convection heat transfer between the fin and the fluid. The main function of the fin is to expand the heat transfer area, Improve the compactness of the heat exchanger, improve the heat transfer efficiency, and also serve as the support of the baffle plate to improve the strength and pressure bearing capacity of the heat exchanger. The pitch between the fins generally ranges from 1mm to 4.2mm. There are many types and types of fins. Commonly used forms include serrated, porous, straight, corrugated, etc., and there are also shutter-type fins and fins abroad. Strip fins, nail fins, etc. 2.Partition The baffle is a metal plate between two layers of fins. It is covered with a layer of brazing alloy on the surface of the parent metal. During brazing, the alloy melts and the fins, seals and the metal plate are welded together. The partition separates two adjacent layers, and the heat exchange is carried out through the partition. The commonly used partition is generally 1mm~2mm thick. 3. Seal The seal is around each layer, and its function is to separate the medium from the outside world. According to its cross-sectional shape, seals can be divided into three types: dovetail groove shape, channel steel shape and waist drum shape. Generally, the upper and lower sides of the seal should have an inclination of 0.3/10 in order to form a gap when combined with the partition to form a plate bundle, which is conducive to the penetration of the solvent and the formation of a full weld. 4. Guide vane The guide vanes are generally arranged at both ends of the fins, in the aluminum plate fin type The heat exchanger mainly plays a role of guiding the inlet and outlet of the fluid to facilitate the uniform distribution of the fluid in the heat exchanger, reduce the flow dead zone, and improve the heat exchange efficiency. 5. Head The head is also called the collecting box, which is usually formed by welding the head body, connecting pipe, end plate, flange and other parts. The function of the head is to distribute and gather the medium, connect the plate bundle and the process pipeline.   In addition, a complete plate-fin heat exchanger should also include support, lifting lugs, thermal insulation and other auxiliary devices. The support is connected to the bracket to support the weight of the heat exchanger; the lifting lugs are used for hoisting the heat exchanger; the outside of the aluminum plate-fin heat exchanger must generally be considered for heat insulation. Usually use methods such as dry pearl sand, slag wool or rigid polyurethane foam.   From the perspective of heat transfer mechanism, the plate-fin heat exchanger is still a shoulder-arm heat exchanger. Its main feature is that it has an extended secondary heat transfer surface (fin), so the heat transfer process is not only performed on the primary heat transfer surface (baffle), but also on the secondary heat transfer surface. The heat of the medium on the high temperature side is poured into the medium on the low temperature side once on the surface, and part of the heat is also transferred along the height of the fin surface, that is, along the height of the fin, there is a partition to pour the heat, and then the heat is transferred to the low temperature side by convection medium. Since the height of the fin greatly exceeds the thickness of the fin, the heat conduction process along the height of the fin is similar to that of a homogeneous slender guide rod. At this time, the thermal resistance of the fin cannot be ignored.      The temperature at both ends of the fin is at most equal to the temperature of the partition. With the convection and heat release of the fin and the medium, the temperature continues to decrease until the temperature of the medium in the middle of the fin. Processing Step: Fins Rolling -- Tube Making -- Radiator Core Making -- Brazing Line -- Tank Making -- TIG Welding -- Product Leaking Testing Applications: For Tractor, Hydraulic System,Refitted Vehicle ,Motor and so on OUR SERVICE: Provide the technical design and solutions; For small order ,we deliver in one day only (because we have stock) . We will arrange courier or sea shipment as your advise in time .  Supply fittings at any time too; QUALITY ASSURANCE Strict contract auditing invloved all departments to assure the feasibility of each order. Process design and validation before bulk production. Inspection for each process ,worker self check too . Each cooler with pressure test according to request . Strictly control on all raw materials and final inspection before delivery