CN113210783A - Brazing process for seal type radiator - Google Patents
Brazing process for seal type radiator Download PDFInfo
- Publication number
- CN113210783A CN113210783A CN202110547857.5A CN202110547857A CN113210783A CN 113210783 A CN113210783 A CN 113210783A CN 202110547857 A CN202110547857 A CN 202110547857A CN 113210783 A CN113210783 A CN 113210783A
- Authority
- CN
- China
- Prior art keywords
- flux
- core body
- welding
- brazing
- radiator
- 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.)
- Pending
Links
Classifications
-
- 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
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
-
- 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
- B23K1/203—Fluxing, i.e. applying flux onto surfaces
-
- 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
- B23K1/206—Cleaning
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/362—Selection of compositions of fluxes
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/14—Heat exchangers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention relates to a brazing process of a seal type radiator, which comprises the following steps: step 1), cleaning core body parts by using ultrasonic waves, and then assembling the core body; step 2), mixing the flux powder and purified water according to the proportion of 16-18% of flux concentration to obtain the flux; step 3), soaking the assembled core body in the prepared welding flux for 3 minutes to ensure that all the inner and outer fins have the welding flux; step 4), taking out the core body and blowing off redundant welding flux on the surface of the core body; step 5), carrying out tunnel furnace brazing; the surface of the core body after brazing has no residual flux, and the appearance requirement same as that of the core body brazed in a vacuum furnace is met. By the process improvement, the residual flux on the surface of the welding seal radiator of the tunnel furnace can be effectively improved, and the purposes of the welding seal radiator and the oil dispersion of the tunnel furnace are greatly exerted.
Description
Technical Field
The invention relates to a brazing process of a seal type radiator, and belongs to the technical field of brazing of seal type radiators.
Background
The seal type radiator and the oil radiator are commonly used on engineering machinery, central trucks and special equipment, and at present, two types of core welding are adopted, one type is vacuum furnace welding, and the other type is tunnel furnace welding. The vacuum furnace welding has the advantages that the material is made of non-composite material, the cost is lower, and the defect is low efficiency; the tunnel furnace welding has the advantages of high efficiency and suitability for mass welding, and has the disadvantages of flux requirement, more surface welding residues, composite material used as the material and higher cost.
The original process for brazing the seal radiator of the tunnel furnace comprises the following steps: all parts are cleaned by ultrasonic waves, resin soldering flux (also called oil-based soldering flux, which is soldering flux powder and light-emitting glue) is sprayed on the surface of each partition board, the core body is assembled after drying and then is welded in a tunnel furnace, after the oxide layer on the surface of the aluminum material is removed by the soldering flux at the high temperature of 620-630 ℃, the composite layer on the surface of the aluminum material is melted and then is welded with the seal strip and the fin to finish furnace discharge, as the residual soldering flux on the partition board flows into the large surface of the core body in the brazing process, the residual soldering flux on the large surface of the core body is remained, the residue is very hard, the subsequent process cannot be processed, the product appearance is ugly caused, and the defect of the most main defect of the tunnel furnace brazing for the seal radiator at present is also overcome.
Disclosure of Invention
The invention aims to provide a brazing process of a seal type radiator aiming at the existing problems.
The technical scheme of the invention is as follows: a brazing process of a seal type radiator is characterized by comprising the following steps:
step 1), cleaning core body parts by using ultrasonic waves, and then assembling the core body;
step 2), mixing the flux powder and purified water according to the proportion of 16-18% of flux concentration to obtain the flux;
step 3), soaking the assembled core body in the prepared welding flux for 3 minutes to ensure that all the inner and outer fins have the welding flux;
step 4), taking out the core body and blowing off redundant welding flux on the surface of the core body;
step 5), carrying out tunnel furnace brazing; the surface of the core body after brazing has no residual flux, and the appearance requirement same as that of the core body brazed in a vacuum furnace is met.
The components of the flux powder in the step 2) comprise potassium K, aluminum AL and fluorine F, and the proportion of each component is as follows:
28.5-33% of potassium K, 16.5-19% of aluminum AL, fluorine F: 49-53 percent.
The method of the invention is advanced and scientific, and through the invention, the brazing process of the seal type radiator is provided, firstly, core parts are cleaned by ultrasonic waves, and then the core is assembled; mixing the flux powder and purified water according to the proportion of 16-18% of flux concentration to obtain flux; soaking the assembled core body in the prepared welding flux for 3 minutes to ensure that all the inner and outer fins have the welding flux; taking out the core body and blowing off the redundant welding flux on the surface of the core body; finally, carrying out tunnel furnace brazing; the surface of the core body after brazing has no residual flux, and the appearance requirement same as that of the core body brazed in a vacuum furnace is met.
Tests prove that the process improvement can effectively improve the flux residue on the surface of the tunnel furnace welding seal radiator and greatly play the roles of the tunnel furnace welding seal radiator and oil dispersion.
Detailed description of the invention
The invention is further described with reference to specific examples. The scope of the invention is not limited thereto:
a brazing process of a seal type radiator comprises the following steps:
step 1), cleaning core body parts by using ultrasonic waves, and then assembling the core body;
step 2), mixing the flux powder and purified water according to the proportion of 16-18% of flux concentration to obtain the flux;
step 3), soaking the assembled core body in the prepared welding flux for 3 minutes to ensure that all the inner and outer fins have the welding flux;
step 4), taking out the core body and blowing off redundant welding flux on the surface of the core body;
step 5), carrying out tunnel furnace brazing; the surface of the core body after brazing has no residual flux, and the appearance requirement same as that of the core body brazed in a vacuum furnace is met.
The components of the flux powder in the step 2) comprise potassium K, aluminum AL and fluorine F, and the proportion of each component is as follows:
28.5-33% of potassium K, 16.5-19% of aluminum AL, fluorine F: 49-53 percent.
Claims (2)
1. A brazing process of a seal type radiator is characterized by comprising the following steps:
step 1), cleaning core body parts by using ultrasonic waves, and then assembling the core body;
step 2), mixing the flux powder and purified water according to the proportion of 16-18% of flux concentration to obtain the flux;
step 3), soaking the assembled core body in the prepared welding flux for 3 minutes to ensure that all the inner and outer fins have the welding flux;
step 4), taking out the core body and blowing off redundant welding flux on the surface of the core body;
step 5), carrying out tunnel furnace brazing; the surface of the core body after brazing has no residual flux, and the appearance requirement same as that of the core body brazed in a vacuum furnace is met.
2. The brazing process for the sealing type heat radiator according to claim 1, wherein the flux powder in the step 2) comprises potassium K, aluminum AL and fluorine F, and the proportion of the components is as follows: 28.5-33% of potassium K, 16.5-19% of aluminum AL, fluorine F: 49-53 percent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110547857.5A CN113210783A (en) | 2021-05-19 | 2021-05-19 | Brazing process for seal type radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110547857.5A CN113210783A (en) | 2021-05-19 | 2021-05-19 | Brazing process for seal type radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113210783A true CN113210783A (en) | 2021-08-06 |
Family
ID=77093503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110547857.5A Pending CN113210783A (en) | 2021-05-19 | 2021-05-19 | Brazing process for seal type radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113210783A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038783A (en) * | 1988-06-18 | 1990-01-17 | 关东冶金工业株式会社 | The method for welding of aluminium |
| JP2000202620A (en) * | 1999-01-13 | 2000-07-25 | Denso Corp | Aluminum plate for brazing and manufacture of heat exchanger |
| CN201811639U (en) * | 2010-07-12 | 2011-04-27 | 上海德朗汽车零部件制造有限公司 | All-aluminum type radiator |
| CN102328139A (en) * | 2010-07-12 | 2012-01-25 | 上海德朗汽车零部件制造有限公司 | Welding process of total aluminum radiator |
| CN103134368A (en) * | 2012-11-14 | 2013-06-05 | 北京龙源冷却技术有限公司 | Finned tube and heat exchanger and manufacturing method of heat exchanger |
| CN105880767A (en) * | 2014-12-04 | 2016-08-24 | 重庆普致汽车配件有限公司 | Welding process for radiator |
-
2021
- 2021-05-19 CN CN202110547857.5A patent/CN113210783A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038783A (en) * | 1988-06-18 | 1990-01-17 | 关东冶金工业株式会社 | The method for welding of aluminium |
| JP2000202620A (en) * | 1999-01-13 | 2000-07-25 | Denso Corp | Aluminum plate for brazing and manufacture of heat exchanger |
| CN201811639U (en) * | 2010-07-12 | 2011-04-27 | 上海德朗汽车零部件制造有限公司 | All-aluminum type radiator |
| CN102328139A (en) * | 2010-07-12 | 2012-01-25 | 上海德朗汽车零部件制造有限公司 | Welding process of total aluminum radiator |
| CN103134368A (en) * | 2012-11-14 | 2013-06-05 | 北京龙源冷却技术有限公司 | Finned tube and heat exchanger and manufacturing method of heat exchanger |
| CN105880767A (en) * | 2014-12-04 | 2016-08-24 | 重庆普致汽车配件有限公司 | Welding process for radiator |
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