CN112222789A - Manufacturing process of marine radiator - Google Patents
Manufacturing process of marine radiator Download PDFInfo
- Publication number
- CN112222789A CN112222789A CN202010853455.3A CN202010853455A CN112222789A CN 112222789 A CN112222789 A CN 112222789A CN 202010853455 A CN202010853455 A CN 202010853455A CN 112222789 A CN112222789 A CN 112222789A
- Authority
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- China
- Prior art keywords
- radiator
- furnace
- heat dissipation
- temperature
- brazing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a manufacturing process of a marine radiator, and belongs to the technical field of radiator processing. The manufacturing process of the marine radiator comprises an outer plate of the radiator, a round radiating pipe and a flat radiating pipe. Clamping brazing filler metal in the joint gap, placing the assembled assembly in a process cover, placing a magnesium block in the process cover, performing vacuum brazing, and pumping to 6.67X 10 when the vacuum degree in a furnace is reached‑3After Pa, adjusting the needle valve of the vacuum furnace, introducing flowing argon, heating, when the heating temperature reaches 550 ℃, closing the argon, and increasing the vacuum degree in the furnace to 1.33 multiplied by 10‑2Pa above, keeping the temperature of the weldment at 610-615 ℃, keeping the temperature for 5min, stopping heating, introducing argon, taking out the weldment after the furnace temperature is cooled to room temperature, and performing the processThe selection of working environment, equipment facilities, welding parameters and brazing filler metal brazing flux ensures that the radiator manufactured by the manufacturing process has firm structure, high production efficiency and good radiating effect.
Description
Technical Field
The invention relates to the field of radiator processing, in particular to a manufacturing process of a marine radiator.
Background
The heat dissipation system is an important accessory unit of the engine and can influence the normal work of the engine. With the continuous development of modern mechanical and electronic technology, diesel engines are developing towards the direction of compact structure, complex system, high heat density and the like, the requirements on the heat dissipation and cooling performance of internal devices are higher and higher, a water-cooling radiator can better solve the heat dissipation problem of a high-power diesel engine, the radiator is a general name of a series of devices for conducting and releasing heat, is wide in application and wide in application range, is an important unit for energy conversion in a power system, can influence the normal work of the power system, the aluminum water-cooling radiator is complex in structure, cooling pipes are tightly arranged, and is welded and formed by adopting a vacuum brazing process, but the vacuum brazing requirement is higher, and the working environment, equipment facilities, welding parameters, brazing flux and the like can influence the brazing process.
How to invent a manufacturing process of a marine radiator to improve the problems becomes a problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In order to make up for the above deficiencies, the present invention provides a manufacturing process of a marine radiator, which aims to improve the problems mentioned in the background art.
The invention is realized by the following steps:
a manufacturing process of a marine radiator comprises an outer plate of the radiator, a radiating circular tube and a radiating flat tube.
The two ends of the outer plate of the radiator are fixedly communicated with the heat dissipation flat tubes through the heat dissipation circular tubes which are uniformly arranged;
the manufacturing process of the radiator comprises the following steps:
the first step is as follows: processing the sizes of the radiating pipes by using the aluminum circular radiating pipes and the flat radiating pipes according to the performance design requirement parameters of the radiator;
the second step is that: utilizing a tool clamp to process the outer plate of the radiator;
the third step: positioning the heat dissipation circular tube and the heat dissipation flat tube by using a tool, and assembling;
the fourth step: removing oil stains on the surface of the part by using a cleaning agent or gasoline, soaking the part in a sodium hydroxide aqueous solution, washing the part by using cold water, hot water and deionized water, and drying the cleaned part;
the fifth step: clamping brazing filler metal in the joint gap, and then placing filamentous welding flux on the connecting plate to be tightly attached to the circular radiating pipes and the flat radiating pipes;
and a sixth step: placing the assembled brazing assembly in a process cover, placing a magnesium block in the process cover, performing vacuum brazing, and pumping the magnesium block to 6.67X 10 when the vacuum degree in a furnace is reached-3After Pa, adjusting a needle valve of the vacuum furnace, introducing flowing argon with pressure, starting heating, when the heating temperature reaches 550 ℃, closing the argon, and increasing the vacuum degree in the furnace to 1.33 multiplied by 10-2And (4) keeping the temperature of the weldment to be at 610-615 ℃ after the weldment reaches the brazing temperature, stopping heating after 5min of heat preservation, introducing argon, accelerating the cooling of the weldment, and taking out the weldment when the furnace temperature is cooled to room temperature.
In one embodiment of the present invention, the component mounting clearance in the third step is allowed to be between 0.10mm and 0.15 mm.
In one embodiment of the present invention, in the fourth step, the part is immersed in the aqueous solution of sodium hydroxide for 2 min.
In one embodiment of the invention, the brazing filler metal is provided in the form of a foil having a thickness of 0.10 mm.
In one embodiment of the present invention, the solder is BAl88SiMg containing a metal activator Mg, and has a melting point of 555-.
In an embodiment of the invention, in the sixth step, the pressure of the introduced argon gas is 13.33 Pa.
The invention has the beneficial effects that: the invention obtains a ship radiator manufacturing process through the above design, when manufacturing, firstly processing the heat dissipation round pipe and the heat dissipation flat pipe determined according to the design requirement, processing the radiator outer plate through common welding, positioning and assembling the heat dissipation round pipe and the heat dissipation flat pipe, then washing off the oil stain on the parts, dipping in the sodium hydroxide aqueous solution, washing off the sodium hydroxide aqueous solution and drying, then clamping the brazing filler metal in the joint gap, placing the filiform welding flux on the connecting plate to cling to the heat dissipation round pipe and the heat dissipation flat pipe, then placing the assembled assembly in the process cover, placing the magnesium block in the process cover, carrying out vacuum brazing, when the vacuum degree in the furnace is pumped to 6.67 multiplied by 10-3After Pa, adjusting a needle valve of the vacuum furnace, introducing flowing argon with pressure, starting heating, when the heating temperature reaches 550 ℃, closing the argon, and increasing the vacuum degree in the furnace to 1.33 multiplied by 10-2And (2) the temperature is kept for 5min after the weldment reaches the brazing temperature of 610-615 ℃ above Pa, the heating is stopped, argon is introduced to accelerate the cooling of the weldment, the weldment is taken out after the furnace temperature is cooled to the room temperature, and the radiator is processed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of a configuration of a marine radiator assembly according to an embodiment of the present invention;
fig. 2 is an enlarged schematic structural view of a point a in the figure according to the embodiment of the present invention.
In the figure: 100-outer plate of radiator; 200-a heat dissipation circular tube; 300-radiating flat tubes; 400-brazing filler metal.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Examples
Referring to fig. 1, the present invention provides a manufacturing process of a marine radiator, including an outer plate 100 of the radiator, a circular radiating pipe 200 and a flat radiating pipe 300.
In this embodiment, the two ends of the outer radiator panel 100 are fixedly communicated with the heat dissipation flat tubes 300 through the heat dissipation round tubes 200 which are uniformly arranged.
Referring to fig. 2, the manufacturing process of the heat sink is as follows:
the first step is as follows: processing the sizes of the radiating pipes according to the design requirement parameters of the performance of the radiator by using the aluminum circular radiating pipe 200 and the flat radiating pipe 300;
the second step is that: utilizing a tool clamp to process the outer plate 100 of the radiator;
the third step: positioning the heat dissipation circular tube 200 and the heat dissipation flat tube 300 by using a tool, and assembling, wherein the assembly clearance of parts is allowed to be between 0.10mm and 0.15 mm;
the fourth step: removing oil stains on the surface of the part by using a cleaning agent or gasoline, soaking the part in a sodium hydroxide aqueous solution for 2 minutes, then washing the part by using cold water, hot water and deionized water, and drying the cleaned part;
the fifth step: the brazing filler metal 400 is clamped in the joint gaps, the filamentous welding flux is placed on the connecting plate and tightly attached to the round pipe and the flat pipe, the brazing filler metal 400 is set to be in a foil shape with the thickness of 0.10mm, the brazing filler metal 400 is BAl88SiMg containing a metal activator Mg, and the melting point is 555-585 ℃;
and a sixth step: placing the assembled brazing assembly in a process cover, placing a magnesium block in the process cover, performing vacuum brazing, and pumping the magnesium block to 6.67X 10 when the vacuum degree in a furnace is reached-3After Pa, adjusting a needle valve of the vacuum furnace, introducing flowing argon with pressure, introducing the argon with the pressure of 13.33Pa, starting heating, closing the argon when the heating temperature reaches 550 ℃, and increasing the vacuum degree in the furnace to 1.33 multiplied by 10-2And (4) keeping the temperature of the weldment to be at 610-615 ℃ after the weldment reaches the brazing temperature, stopping heating after 5min of heat preservation, introducing argon, accelerating the cooling of the weldment, and taking out the weldment when the furnace temperature is cooled to room temperature.
Specifically, the working principle of the manufacturing process of the marine radiator is as follows: during manufacturing, the heat dissipation circular tube 200 and the heat dissipation flat tube 300 determined according to design requirements are firstly processed, the heat dissipation circular tube 200 and the heat dissipation flat tube 300 are positioned and assembled by processing the outer plate 100 of the heat radiator through common welding, the assembly clearance is allowed to be 0.10-0.15, oil stains on parts are washed off, the parts are soaked in a sodium hydroxide aqueous solution for 2min, and the parts are washed offDrying with sodium hydroxide aqueous solution, then clamping foil-shaped brazing filler metal 400 with the thickness of 0.10mm in a joint gap, placing the filamentous brazing filler metal on a connecting plate to be tightly attached to a circular radiating tube 200 and a flat radiating tube 300, placing the brazing filler metal 400 as brazing filler metal BAl88SiMg containing metal activator Mg with the melting point of 555--3After Pa, the needle valve of the vacuum furnace was adjusted, flowing argon gas at a pressure of 13.33Pa was introduced, heating was started, and when the heating temperature reached 550 deg.C, the argon gas was turned off, and the degree of vacuum in the furnace was increased to 1.33X 10-2And (2) the temperature is kept for 5min after the weldment reaches the brazing temperature of 610-615 ℃ above Pa, the heating is stopped, argon is introduced to accelerate the cooling of the weldment, the weldment is taken out after the furnace temperature is cooled to the room temperature, and the radiator is processed.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A manufacturing process of a marine radiator is characterized by comprising
The heat dissipation structure comprises an outer radiator plate (100), heat dissipation circular tubes (200) and heat dissipation flat tubes (300), wherein two ends of the outer radiator plate (100) are fixedly communicated with the heat dissipation flat tubes (300) through the uniformly distributed heat dissipation circular tubes (200);
the manufacturing process of the radiator comprises the following steps:
the first step is as follows: processing the sizes of the radiating pipes by using aluminum circular radiating pipes (200) and flat radiating pipes (300) according to the performance design requirement parameters of the radiator;
the second step is that: utilizing a tool clamp to process the outer plate (100) of the radiator;
the third step: positioning the heat dissipation circular tube (200) and the heat dissipation flat tube (300) by using a tool, and assembling;
the fourth step: removing oil stains on the surface of the part by using a cleaning agent or gasoline, soaking the part in a sodium hydroxide aqueous solution, washing the part by using cold water, hot water and deionized water, and drying the cleaned part;
the fifth step: the brazing filler metal (400) is clamped in the joint gap, and then the filamentous welding flux is placed on the connecting plate and clings to the round pipe and the flat pipe;
and a sixth step: placing the assembled brazing assembly in a process cover, placing a magnesium block in the process cover, performing vacuum brazing, and pumping the magnesium block to 6.67X 10 when the vacuum degree in a furnace is reached-3After Pa, adjusting a needle valve of the vacuum furnace, introducing flowing argon with pressure, starting heating, when the heating temperature reaches 550 ℃, closing the argon, and increasing the vacuum degree in the furnace to 1.33 multiplied by 10-2And (4) keeping the temperature of the weldment to be at 610-615 ℃ after the weldment reaches the brazing temperature, stopping heating after 5min of heat preservation, introducing argon, accelerating the cooling of the weldment, and taking out the weldment when the furnace temperature is cooled to room temperature.
2. The process for manufacturing a marine radiator as claimed in claim 1, wherein in the third step, the fitting clearance of the parts is allowed to be between 0.10mm and 0.15 mm.
3. The process for manufacturing a radiator for a ship of claim 1, wherein in the fourth step, the part is immersed in the aqueous solution of sodium hydroxide for 2 min.
4. A process for manufacturing a radiator for ships according to claim 1, wherein said brazing filler metal (400) is provided in the form of a foil having a thickness of 0.10 mm.
5. A process according to claim 4, characterized in that the brazing filler metal (400) is BAl88SiMg containing metal activator Mg with a melting point of 555-.
6. The process for manufacturing a marine radiator as claimed in claim 1, wherein in the sixth step, the pressure of the argon gas is 13.33 Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010853455.3A CN112222789A (en) | 2020-08-23 | 2020-08-23 | Manufacturing process of marine radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010853455.3A CN112222789A (en) | 2020-08-23 | 2020-08-23 | Manufacturing process of marine radiator |
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| Publication Number | Publication Date |
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| CN112222789A true CN112222789A (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010853455.3A Withdrawn CN112222789A (en) | 2020-08-23 | 2020-08-23 | Manufacturing process of marine radiator |
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| CN (1) | CN112222789A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131130A (en) * | 2021-11-30 | 2022-03-04 | 深圳市晟达真空钎焊技术有限公司 | Memory liquid cooling heat dissipation module manufacturing method |
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