KR20010064285A - Processing method of heat exchanger - Google Patents

Abstract

PURPOSE: A producing method for a heat exchanger is provided to prevent solution waste in a dipping method, to prevent the solution from powdering after a brazing process and to reduce the number of processes. CONSTITUTION: First, a tube material and a radiating fin material are dipped in solution(5) mixed with flux, aluminum powder and resin. The materials are dried and cut in proper size and molded in a tube(3) and a radiating fin(4). Then, the tube and the radiating fin are assembled into header pipes(1,2) of a heat exchanger. The heat exchanger is inputted to a brazing furnace to be brazed in a proper temperature. Finally, each component of the heat exchanger is tightly assembled after the brazing process.

Description

Manufacturing method of heat exchanger {Processing method of heat exchanger}

The present invention is a heat exchanger used as a radiator of the air conditioner, the tube and the heat radiation fins are installed in the header pipe of the heat exchanger and these are deposited on a material mixed with flux (flux), aluminum powder and resin solution and the heat exchanger after the deposition The present invention relates to a method of manufacturing a heat exchanger that enables a brazing process to manufacture a heat exchanger.

In general, a heat exchanger such as an air conditioner that performs heat dissipation with heat dissipation is provided with a tube (3) through which refrigerant is circulated between the header pipes (1) and (2) on both sides. The heat dissipation fins 4 were provided between the tubes 3 so as to exchange heat with the air.

Meanwhile, in manufacturing a heat exchanger configured as described above, an expensive clad is disposed on the tube 3 and the heat dissipation fins 4 installed between the header pipes 1 and 2 as shown in FIG. 1. After manufacturing by rolling, these tubes (3) and the heat radiation fins (4) are installed between the clad rolled header pipes (1) (2) and coated with a material mixed with water and flux, In the brazing furnace, the joints of the respective parts were joined while brazing to manufacture a heat exchanger.

However, the conventional heat exchanger manufacturing method as described above, while using the expensive cladding material to be rolled with each of the parts, the consumption of the cladding material was increased, thereby resulting in a lot of work maneuver, the cladding In the state of assembling the parts rolled together with the ash, the mixture of water and flux is applied to the entire heat exchanger by spraying, etc., and then brazing them so that the mixture is applied in addition to the connection parts of the components to waste. After the brazing, there was a need for a process of removing the unstable flux after the brazing, and thus a process of removing the unstable flux was required, and there was a closed end in which a white powder phenomenon occurred on the outer surface of the heat exchanger. Complex work process There was a problem such as a lot of material waste.

The present invention has been made in view of the above-mentioned conventional problems. The present invention provides a heat exchanger used as a heat radiator for an air conditioner, such that a tube and a heat radiating fin are installed in a header pipe of the heat exchanger, and the flux, aluminum powder, and resin are used. It is to provide a method for manufacturing a heat exchanger that is deposited on a material mixed with a solution and the heat exchanger after brazing in a brazing furnace to produce a heat exchanger, in detail based on the accompanying drawings and examples below. The explanation is as follows.

1 is a process chart showing a brazing method of a conventional heat exchanger.

2 is a process chart showing a heat exchanger brazing method of the present invention.

Explanation of symbols on the main parts of the drawing

1,2: header pipe

3: tube

4: heat dissipation fin

5: solution

6: spray

Example

In manufacturing a heat exchanger used as a radiator of an air conditioner, a solution 5 containing a mixture of flux, aluminum powder, and resin is provided, and the tube material and the heat radiating fin material used for the heat exchanger are deposited thereon.

Take out the tube and the heat dissipation fin material deposited on the solution (5), dry it, cut it to an appropriate size, shape the tube (3) and the heat dissipation fin (4), and assemble them to the heat exchanger header pipe (1) (2). .

The assembled heat exchanger is put into a brazing furnace to manufacture the heat exchanger by fixing the respective parts by brazing it at an appropriate temperature.

The aluminum powder contained in the immersion solution is used for the same purpose as the clad material, and the resin has a function of maintaining the state of being bonded to the parts until the aluminum powder and the flux are brazed. The parts may be coated by applying the solution to the surface of the parts with a spray 6 instead of deposition.

In the present invention as described above, in assembling the heat exchanger as described above and manufacturing it by the brazing method, coating the solution (5) by mixing the flux, the aluminum powder, and the resin by spraying the surface of each part is coated. Or by dipping the parts into the solution to coat the surface and brazing them in a brazing furnace to prevent waste of the solution and to ensure that the solution does not remain after brazing outside the joint. While the powder is prevented from occurring, the manufacturing process and manufacturing process for manufacturing the heat exchanger are reduced.

Claims (4)

In manufacturing a heat exchanger used as a radiator of an air conditioner, a solution (5) containing a mixture of flux, aluminum powder, and resin is provided, and the tube material and the heat radiating fin material used for the heat exchanger are deposited, and the solution is deposited on the solution (5). Take out the tube and the heat dissipation fin material, dry it, cut it to an appropriate size, shape the tube (3) and the heat dissipation fin (4), and assemble them to the header pipe (1) (2) of the heat exchanger, and the assembled heat exchanger is brazed. The method for manufacturing a heat exchanger, characterized in that for manufacturing the heat exchanger by fixing the assembly of the parts by brazing it at an appropriate temperature. The method of claim 1, wherein the aluminum powder contained in the immersion solution is used for the same purpose as the clad material. The method of claim 1, wherein the resin has a function of maintaining aluminum powder and flux adhered to the parts until the flux is brazed. 2. A method according to claim 1, wherein the parts to be deposited are applied by coating the solution on the surface with a spray (6) instead of deposition.