CN113106278A - Preparation method of welding liquid for aluminum alloy brazing production - Google Patents
Preparation method of welding liquid for aluminum alloy brazing production Download PDFInfo
- Publication number
- CN113106278A CN113106278A CN202110397740.3A CN202110397740A CN113106278A CN 113106278 A CN113106278 A CN 113106278A CN 202110397740 A CN202110397740 A CN 202110397740A CN 113106278 A CN113106278 A CN 113106278A
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- China
- Prior art keywords
- liquid
- aluminum alloy
- aluminum
- smelting furnace
- furnace
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- 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
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
- B23K35/286—Al as the principal constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a preparation method of a welding liquid for aluminum alloy brazing production, which has the following advantages: (1) the solid material and the electrolytic aluminum liquid are smelted according to the solid-liquid ratio of 1:3, the energy consumption of the smelted solution is low, and the aluminum alloy waste can be selected to replace the solid material, so that the preparation cost is greatly reduced, and the environmental protection index is increased; (2) argon and chlorine are blown into the mixed solution, so that hydrogen fused in the mixed solution is reduced, impurities in the mixed solution are reduced, and the purity of the prepared welding solution is improved.
Description
Technical Field
The invention belongs to the technical field of aluminum alloy brazing foil production, and particularly relates to a preparation method of a welding liquid for aluminum alloy brazing production.
Background
The traditional production process of the aluminum alloy brazing foil is a large plate ingot hot rolling or cast rolling production process, and the production process has the advantages of long flow, high cost and large energy consumption. The adoption of the Hatzerland continuous casting and rolling process can not only meet the use requirements of customers, but also have the production characteristics of short process flow, low energy consumption, high yield, low cost and the like.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a preparation method of a welding liquid for aluminum alloy brazing production, which comprises the following steps:
the method comprises the following steps: sequentially adding solid materials and electrolytic aluminum liquid into a smelting furnace, wherein the solid materials comprise aluminum ingots and aluminum alloy waste materials;
step two: heating the smelting furnace to a first temperature to melt the solid materials in the smelting furnace;
step three: after the solid materials are melted, adding an intermediate alloy into the smelting furnace, stirring the melt in the smelting furnace by using a stirring truck, and standing for a period of time after stirring;
step four: adding a slag removing agent, continuously heating the smelting furnace, and pouring the mixed liquid in the smelting furnace into a heat preservation furnace after the temperature in the smelting furnace reaches a second temperature;
step five: introducing argon and chlorine into the heat preservation furnace through an HD2000 device, refining the mixed liquid in the heat preservation furnace, and slagging off the mixed liquid after the refining is finished;
step six: and after the slag skimming operation is finished, standing the mixed liquid in the heat preservation furnace, removing gas in the heat preservation furnace on line by using an SINF (strapdown inertial navigation f) degassing device, and filtering the mixed liquid by using a double-layer deep bed to obtain the welding liquid after the degassing treatment is finished.
Furthermore, the solid-liquid ratio of the solid material to the electrolytic aluminum liquid in the step one is 1: 3.
Furthermore, the first temperature in the second step is 720-740 ℃.
Furthermore, the intermediate alloy in the third step comprises one or more of a Fe agent, an aluminum-silicon alloy, an aluminum-titanium alloy, a Mn agent and a copper agent, and the stirring time of the stirring vehicle is 5-10 minutes.
Further, the second temperature in the fourth step is 740 to 760 ℃.
Furthermore, in the fifth step, the gas ratio of the argon gas to the chlorine gas introduced into the HD2000 device is 8.5:1.5, and the refining treatment time is 1 h.
Further, the standing time in the sixth step is 80 min.
Furthermore, when the SINF degassing device is used for removing argon and chlorine in the heat preservation furnace on line in the sixth step, titanium wires for refining grains are added at the inlet of the degassing box, and the addition amount of the titanium wires is 1.8-2.0 Kg/t.
Has the advantages that: the invention discloses a preparation method of a welding liquid for aluminum alloy brazing production, which has the following advantages: (1) the solid material and the electrolytic aluminum liquid are smelted according to the solid-liquid ratio of 1:3, the energy consumption of the smelted solution is low, and the aluminum alloy waste can be selected to replace the solid material, so that the preparation cost is greatly reduced, and the environmental protection index is increased; (2) argon and chlorine are blown into the mixed solution, so that hydrogen fused in the mixed solution is reduced, impurities in the mixed solution are reduced, and the purity of the prepared welding solution is improved.
Detailed description of the preferred embodiments
In order to enhance the understanding of the present invention, the present invention will be described in further detail with reference to the following examples, which are only for the purpose of illustrating the present invention and are not to be construed as limiting the scope of the present invention.
A preparation method of a welding liquid for aluminum alloy brazing production comprises the following steps:
the method comprises the following steps: sequentially adding solid materials and electrolytic aluminum liquid into a smelting furnace, wherein the solid materials comprise aluminum ingots and aluminum alloy waste materials;
step two: heating the smelting furnace to a first temperature to melt the solid materials in the smelting furnace;
step three: after the solid materials are melted, adding an intermediate alloy into the smelting furnace, stirring the melt in the smelting furnace by using a stirring truck, and standing for a period of time after stirring;
step four: adding a slag removing agent, continuously heating the smelting furnace, and pouring the mixed liquid in the smelting furnace into a heat preservation furnace after the temperature in the smelting furnace reaches a second temperature;
step five: introducing argon and chlorine into the heat preservation furnace through an HD2000 device, refining the mixed liquid in the heat preservation furnace, and slagging off the mixed liquid after the refining is finished;
step six: and after the slag skimming operation is finished, standing the mixed liquid in the heat preservation furnace, removing gas in the heat preservation furnace on line by using an SINF (strapdown inertial navigation f) degassing device, and filtering the mixed liquid by using a double-layer deep bed to obtain the welding liquid after the degassing treatment is finished.
In this embodiment, the solid-to-liquid ratio of the solid material to the electrolytic aluminum liquid in the first step is 1: 3.
In this embodiment, the first temperature in the second step is 720-740 ℃.
In this embodiment, the intermediate alloy in step three includes one or more of an Fe agent, an aluminum-silicon alloy, an aluminum-titanium alloy, an Mn agent, and a copper agent, and the stirring time of the stirring vehicle is 5 to 10 minutes.
In this embodiment, the second temperature in the fourth step is 740 to 760 ℃.
In this example, in the fifth step, the gas ratio of argon to chlorine introduced into the HD2000 apparatus is 8.5:1.5, and the refining time is 1 h.
In this embodiment, the standing time in the sixth step is 80 min.
In the sixth embodiment, when the SINF degassing device is used for removing argon and chlorine in the holding furnace on line in the step six, a titanium wire for refining grains is added at the inlet of the degassing box, and the addition amount of the titanium wire is 1.8-2.0 Kg/t.Al.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A preparation method of a welding liquid for aluminum alloy brazing production comprises the following steps:
the method comprises the following steps: sequentially adding solid materials and electrolytic aluminum liquid into a smelting furnace, wherein the solid materials comprise aluminum ingots and aluminum alloy waste materials;
step two: heating the smelting furnace to a first temperature to melt the solid materials in the smelting furnace;
step three: after the solid materials are melted, adding an intermediate alloy into the smelting furnace, stirring the melt in the smelting furnace by using a stirring truck, and standing for a period of time after stirring;
step four: adding a slag removing agent, continuously heating the smelting furnace, and pouring the mixed liquid in the smelting furnace into a heat preservation furnace after the temperature in the smelting furnace reaches a second temperature;
step five: introducing argon and chlorine into the heat preservation furnace through an HD2000 device, refining the mixed liquid in the heat preservation furnace, and slagging off the mixed liquid after the refining is finished;
step six: and after the slag skimming operation is finished, standing the mixed liquid in the heat preservation furnace, removing gas in the heat preservation furnace on line by using an SINF (strapdown inertial navigation f) degassing device, and filtering the mixed liquid by using a double-layer deep bed to obtain the welding liquid after the degassing treatment is finished.
2. The method for preparing the welding liquid for the aluminum alloy brazing production as recited in claim 1, wherein the solid-to-liquid ratio of the solid material to the electrolytic aluminum liquid in the step one is 1: 3.
3. The method for preparing the soldering liquid for the brazing production of the aluminum alloy according to claim 1, wherein the first temperature in the second step is 720-740 ℃.
4. The method for preparing the welding liquid for the aluminum alloy brazing production according to the claim 1, wherein the intermediate alloy in the third step comprises one or more of Fe agent, aluminum-silicon alloy, aluminum-titanium alloy, Mn agent and copper agent, and the stirring time of the stirring vehicle is 5-10 minutes.
5. The method for preparing the welding liquid for the aluminum alloy brazing production according to claim 1, wherein the second temperature in the fourth step is 740-760 ℃.
6. The method for preparing the welding liquid for the aluminum alloy brazing production as recited in claim 1, wherein in the fifth step, the gas ratio of argon gas to chlorine gas introduced into the HD2000 device is 8.5:1.5, and the time of the refining treatment is 1 h.
7. The method for preparing the welding liquid for the aluminum alloy brazing production as recited in claim 1, wherein the standing time in the sixth step is 80 min.
8. The preparation method of the welding liquid for the aluminum alloy brazing production according to claim 1, wherein in the sixth step, when argon and chlorine in the holding furnace are removed on line by using an SINF degassing device, a titanium wire for grain refinement is added at an inlet of a degassing box, and the addition amount of the titanium wire is 1.8-2.0 Kg/t-Al.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110397740.3A CN113106278A (en) | 2021-04-13 | 2021-04-13 | Preparation method of welding liquid for aluminum alloy brazing production |
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| CN202110397740.3A CN113106278A (en) | 2021-04-13 | 2021-04-13 | Preparation method of welding liquid for aluminum alloy brazing production |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08134573A (en) * | 1994-11-11 | 1996-05-28 | Furukawa Electric Co Ltd:The | Production of aluminum alloy fin material for low temperature brazing, brazing sheet and heat exchanger made of aluminum alloy, and heat exchanger made of aluminum alloy |
| CN101713033A (en) * | 2009-11-23 | 2010-05-26 | 山东南山铝业股份有限公司 | Production technology for casting aluminum foil |
| CN101921939A (en) * | 2010-09-09 | 2010-12-22 | 西南大学 | Method for preparing 5182 big flat ingot with high performance by short flow process |
| CN102392156A (en) * | 2011-10-31 | 2012-03-28 | 河南神火铝材有限公司 | Aluminum alloy material and production method of cast-rolling stock of decorative strip of same |
| CN107529562A (en) * | 2017-05-22 | 2018-01-02 | 商丘阳光铝材有限公司 | Directly cast-rolling electrolytic aluminium liquid top grade double-zero aluminum foil blank production technology |
| CN111154989A (en) * | 2020-01-10 | 2020-05-15 | 广西百矿润泰铝业有限公司 | Aluminum and aluminum melt processing method |
| CN111185578A (en) * | 2020-02-19 | 2020-05-22 | 云南铝业股份有限公司 | Method for producing 5554 aluminum alloy welding wire by continuous casting and rolling |
-
2021
- 2021-04-13 CN CN202110397740.3A patent/CN113106278A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08134573A (en) * | 1994-11-11 | 1996-05-28 | Furukawa Electric Co Ltd:The | Production of aluminum alloy fin material for low temperature brazing, brazing sheet and heat exchanger made of aluminum alloy, and heat exchanger made of aluminum alloy |
| CN101713033A (en) * | 2009-11-23 | 2010-05-26 | 山东南山铝业股份有限公司 | Production technology for casting aluminum foil |
| CN101921939A (en) * | 2010-09-09 | 2010-12-22 | 西南大学 | Method for preparing 5182 big flat ingot with high performance by short flow process |
| CN102392156A (en) * | 2011-10-31 | 2012-03-28 | 河南神火铝材有限公司 | Aluminum alloy material and production method of cast-rolling stock of decorative strip of same |
| CN107529562A (en) * | 2017-05-22 | 2018-01-02 | 商丘阳光铝材有限公司 | Directly cast-rolling electrolytic aluminium liquid top grade double-zero aluminum foil blank production technology |
| CN111154989A (en) * | 2020-01-10 | 2020-05-15 | 广西百矿润泰铝业有限公司 | Aluminum and aluminum melt processing method |
| CN111185578A (en) * | 2020-02-19 | 2020-05-22 | 云南铝业股份有限公司 | Method for producing 5554 aluminum alloy welding wire by continuous casting and rolling |
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Application publication date: 20210713 |