KR20010109552A - Processing method of heat exchanger - Google Patents

Abstract

The present invention is a heat exchanger used as a radiator of the air conditioner, the tube and the heat dissipation fins and guides are installed in the header pipe of the heat exchanger to manufacture them by integrally brazing to manufacture the parts made of aluminum or the same material, The present invention relates to a method of manufacturing a heat exchanger, in which each of the manufactured parts is manufactured by applying a brazing flux or a coating powder to braze the heat exchanger.

The present invention manufactures a heat-radiating fin, tube, header, guide made of aluminum in the part manufacturing process (1), and assembled the assembled parts in the assembly process (2) and the assembled parts in the coating process (3) The flux is applied, the flux-coated parts are integrally brazed at a temperature of about 600-610 ° C. in the brazing process (4), and the brazed product is configured to inspect for leaks in the inspection process (5) to complete the same. Heat dissipation fins, tubes, headers, and guides made of materials are manufactured in the part manufacturing process (1), and the manufactured parts are coated with powder in the coating process (6), and the powder-coated parts are assembled in the assembly process (7). It is configured to integrally braze the assembled parts at a temperature of about 600-610 ℃ in the brazing process (8) and to complete the brazed product by inspecting the leak in the inspection process (9).

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 dissipation fins and guides are installed in the header pipe of the heat exchanger to manufacture them by integrally brazing to manufacture the parts made of aluminum or the same material, The present invention relates to a method of manufacturing a heat exchanger, in which each of the manufactured parts is manufactured by applying a brazing flux or a coating powder to braze the heat exchanger.

In general, a heat exchanger such as an air conditioner that performs heat exchange while performing heat dissipation may include a tube through which refrigerant is circulated between the header pipes on both sides, and a high temperature of the refrigerant circulated along the tube may be in contact with air to exchange heat between the tubes. The heat dissipation fins were installed on the vehicle, and guides were installed to install the heat exchanger in a vehicle.

Meanwhile, in manufacturing a heat exchanger having the above configuration, the tube is manufactured in the same tube manufacturing process 101 as in FIG. 1, and then the header pipe, the heat dissipation fin, and the guide manufacturing process 102 are made of the same material. In order to manufacture them separately in the welding coating and assembling them in the assembling process 103, and the heat treatment process 105, the flux is applied in the flux process 104 to the assembled parts and brazed the header pipe of the brazed product After the depth processing in the depth machining process 106, the tank is assembled to the product in the tank assembly process 107 to complete the product and to inspect the finished product in the inspection process 108 to complete the leak It was.

However, the conventional manufacturing method as described above has a closed end that requires a lot of the overall manufacturing process because it must go through the processing and assembly process in the state of not assembling each of the parts integrally, the production of the heat exchanger is reduced as the completion of the product According to the work process is complicated, a lot of work maneuver and there was a problem such as a lot of waste of materials.

The present invention has been made in view of the above-mentioned conventional problems. The present invention provides a heat exchanger used as a radiator of an air conditioner, by installing a tube, a radiating fin and a guide in the header pipe of the heat exchanger, and brazing them integrally. In the manufacturing, the parts are made of aluminum or the same material, and each of the manufactured parts by applying a flux for brazing or coating powder for brazing, thereby making the heat exchanger integrally manufactured It is intended to provide a manufacturing method of the group, which will be described in detail based on the accompanying drawings and examples below.

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

2 is a process chart showing a method of manufacturing the aluminum material heat exchanger of the present invention.

3 is a process chart showing a method of manufacturing a heat exchanger of the same material according to the present invention.

Figure 4 is a process diagram showing a powder manufacturing process of the embodiment of the present invention

Explanation of symbols on the main parts of the drawing

1: Parts manufacturing process

2,7: Assembly Process

3: coating process

4,8 Brazing Process

5,9: Inspection process

6: coating process

10: Powder

11: alcoholic colloid

12: mixing process

13: crystalline powder

14: water soluble powder

Example 1

As shown in FIG. 2, a heat dissipation fin, a tube, a header, and a guide made of aluminum are manufactured in the parts manufacturing process (1), the manufactured parts are assembled in the assembling process (2), and the assembled parts are coated (3). ) Flux is applied and the parts coated with flux are integrally brazed at a temperature of about 600-610 ° C in the brazing process (4), and the brazed product is inspected and completed in the inspection process (5). .

The heat exchanger manufactured through the manufacturing process as described above consists of all parts of the aluminum material and brazing them through the flux, so that the whole parts are made in one piece, and the overall bonding state is firmly formed by the flux without occurrence of gaps. Is done.

Example 2

As shown in FIG. 3, heat dissipation fins, tubes, headers, and guides made of the same material are manufactured in the part manufacturing process (1), and the manufactured parts are coated with powder in the coating process (6), and the powder coated parts are assembled. It is assembled in the step (7) and the assembled parts are brazed integrally at a temperature of about 600-610 ° C. in the brazing step (8), and the brazed product is inspected and completed in the inspection step (9).

The heat dissipation fin is made of a composition ratio of Mn: 0.002, Sn: 1.42, Cr: 0.25-0.3, and other Cu, and the tube is made of Sn: 0.05, Fe: 0.79, Zn: 14,4, and other composition ratios of Cu.

In addition, the powder for the joining of the components are Sn: 15-20%, Ni: 1-5%, P: 4-7%, other Cu composition ratio of the particle size of less than 90 microns, the average particle 20 microns It consists of a composition ratio of, the powder is mixed with the alcoholic colloid agent (11) in the mixing process (12) to the powder (10) of the composition ratio as shown in Figure 4 and the mixed powder to the crystalline powder ( 13) and a water-soluble powder (14) and these are to be applied to the parts by the application or spray method.

The heat exchanger manufactured through the manufacturing process as described above consists of all parts made of the same material, and the whole parts are brazed in the brazing process in a state in which the powder made of the crystalline powder 13 and the water-soluble powder 14 is coated. It is made in one piece, the parts of the same material is made by the powder, the overall bonding state is made firmly without the occurrence of gaps.

As described above, the heat exchanger parts made of aluminum are brazed to be integrally bonded using flux, and the heat exchanger made of copper material is coated with powder of the component to be applied or sprayed and manufactured by the brazing method. As a result, the heat exchanger is smoothly manufactured, and even after the brazing, the product is finished even without a separate processing step.

In addition, the heat dissipation fin and the tube made of the same material is made to be fused smoothly with the powder, and the bonding state thereof is to be firm to prevent the waste of the plus or the powder and the place other than the coupling portion Since the solution does not remain after brazing, and the manufacturing process and manufacturing labor for manufacturing the heat exchanger is reduced.

Claims (4)

Aluminum-made heat sink fins, tubes, headers, and guides are manufactured in the parts manufacturing process (1), these manufactured parts are assembled in the assembly process (2), and the assembled parts are flux-coated in the coating process (3). And the parts coated with the flux are integrally brazed at a temperature of about 600-610 ° C. in the brazing process (4), and the brazed product is inspected and completed in the inspection process (5) for heat exchanger. Manufacturing method. Heat-resistant fins, tubes, headers, and guides made of the same material are manufactured in the parts manufacturing process (1), and these manufactured parts are coated with powder in the coating process (6), and the powder-coated parts are assembled in the assembly process (7). And brazing the assembled parts at a temperature of about 600-610 ° C. in the brazing process (8) and inspecting and completing the brazed product in the inspection process (9). Manufacturing method. The method of claim 2, wherein the heat radiation fin is Mn: 0.002, Sn: 1.42, Cr: 0.25-0.3, other Cu composition ratio, the tube is Sn: 0.05, Fe: 0.97, Zn: 14, 4, other Cu It is composed of a composition ratio of the powder, the powder for the joining of the components: Sn: 15-20%, Ni: 1-5%, P: 4-7%, other Cu composition ratio of the particle size is less than 90 microns, Method for producing a heat exchanger, characterized in that the composition consists of a composition ratio of the average particle 20 microns. 3. The powder of claim 2, wherein the powder is mixed with the alcoholic colloid (11) in the powder (10) in the mixing step (12) and the mixed powder is mixed with the crystalline powder (13) and the water-soluble powder (14). Manufacturing and coating the components by coating or spraying them.