CN102620596A - Aluminum alloy horizontal flow pipe with braze welding layer and manufacturing method thereof - Google Patents
Aluminum alloy horizontal flow pipe with braze welding layer and manufacturing method thereof Download PDFInfo
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- CN102620596A CN102620596A CN2012100945416A CN201210094541A CN102620596A CN 102620596 A CN102620596 A CN 102620596A CN 2012100945416 A CN2012100945416 A CN 2012100945416A CN 201210094541 A CN201210094541 A CN 201210094541A CN 102620596 A CN102620596 A CN 102620596A
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Abstract
The invention provides an aluminum alloy horizontal flow pipe with a braze welding layer, and a manufacturing method thereof. The aluminum alloy horizontal flow pipe with the braze welding layer comprises an aluminum alloy pipe and the braze welding layer covered on the aluminum alloy pipe, wherein the braze welding layer coating comprises the following components by mass: 0.1-0.6% of Fe, 6-14% of Si, 0.05-0.15% of Cu, 0.06-0.1% of Mn, 0.005-0.05% of Cr, 0.005-0.05% of Mg, 0.005-0.1% of Zn, 0.01-0.05% of Ti, and the balance of Al. The manufacturing method of the aluminum alloy horizontal flow pipe with the braze welding layer comprises the steps of continuous casting, continuous rolling, homogenizing, annealing, straightening, cleaning, continuous extrusion, spray coating of the solderable coating, cooling and straightening. The braze welding layer of the aluminum alloy horizontal flow pipe provided by the invention is uniform in thickness; the bonding between the braze welding layer and the aluminum alloy horizontal flow pipe is tight, so that the braze welding layer coating is not likely to shed; and after the braze welding layer coating is coated on the aluminum alloy horizontal flow pipe, the subsequent fin welding process is simplified, and the additional welding with solder material is not needed, so as to reduce processing cost.
Description
Technical field
The present invention relates to a kind of aluminium alloy advection pipe and manufacturing approach thereof that is used for heat exchanger, particularly relate to a kind of aluminium alloy advection pipe and manufacturing approach thereof that is used for the band brazing layer of heat exchanger.
Background technology
The concurrent flow pipe is mainly used in car heat exchanger such as evaporimeter and condenser along with developing of automobile industry has obtained higher attention.Tens of aluminum alloy fins of outer surface welding of concurrent flow pipe can be formed condenser, evaporimeter by many such aluminium alloy advection pipes.The welding fin need adopt suitable brazing equipment and brazing material, and aluminum alloy surface has firm oxide-film, and common physics deoxidation film effect is undesirable; Processing to advection pipe welding fin has brought certain difficulty, and manufacturing procedure is loaded down with trivial details, simultaneously; General composite fin, the phenomenon that inevitably has composite bed to come off is prone to drop in high-speed molding; Cause the accelerated wear test of hobboing cutter behind the entering hobboing cutter, processing cost is increased.
Summary of the invention
The purpose of this invention is to provide a kind of aluminium alloy advection pipe with brazing layer, this concurrent flow tube outer surface is covered with brazing layer, can simplify follow-up fin welding procedure, need not to use brazing material to weld in addition.
Problems such as another object of the present invention provides the manufacturing approach of the aluminium alloy advection pipe of band brazing layer, and this method can solve brazing layer and apply difficulty, and soldering bond strength instability etc. are bad.
Technical scheme of the present invention is such:
The aluminium alloy advection pipe of band brazing layer; Comprise aluminium-alloy pipe and brazing layer; Brazing layer is covered in aluminium-alloy pipe, it is characterized in that said brazing layer comprises that following mass component: Fe:0.1～0.6%, Si:6～14%, Cu:0.05～0.15%, Mn:0.06～0.1%, Cr:0.005～0.05%, Mg:0.005～0.05%, Zn:0.005～0.1%, Ti:0.01～0.05%, surplus are Al.
The manufacturing approach of the aluminium alloy advection pipe of band brazing layer is characterized in that comprising the steps:
(A) adopt the continuous casting and rolling mode to produce round aluminium bar coiled material;
(B) circle aluminium bar coiled material is carried out homogenizing anneal;
(C) will justify aluminium bar coiled material aligns through straightener;
(D) the round aluminium bar that will align is through continuous brushing mechanism, and ground surface, and adopt pressure-air that aluminium rod surface is carried out purge guarantees that smooth surface, cleaning do not have dirty;
(E) will justify the aluminium bar through continuous extruder extrusion production aluminium alloy advection pipe, extrusion temperature is 480～520 ℃, and extrusion speed is 60～80m/min.
(F) carry out brazing layer on the surface and handle, adopt the mode of electric arc spraying, the thickness of brazing layer is 0.008～0.012mm.
(G) will spray advection pipe behind the brazing layer through the tank cooling, align through straightener.
Preferably, voltage is 25～35V in the said arc spray process of step (E), and electric current is 20～40A.
Beneficial effect of the present invention does; Brazing layer thickness uniformity through the electric arc spraying process spraying; The right high difficult drop-off of adjusted brazing layer material and aluminium alloy advection duct ligation, aluminium alloy advection tube-surface can be simplified follow-up fin welding procedure after applying brazing layer; Need not to use brazing material to weld in addition, cut down finished cost.
The specific embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more; The applicant general elaborates with the mode of embodiment below; But the description of embodiment all is not the restriction to the present invention program, any according to the present invention design done only for pro forma but not substantial equivalent transformation all should be regarded as technical scheme category of the present invention.
Embodiment 1:
The aluminium alloy advection pipe production stage of band brazing layer is following:
(A) aluminium alloy advection pipe base material is carried out melting by proportioning, the aluminium of acquisition is through aluminium bar continuous casting and tandem rolling machine production circle aluminium bar coiled material;
(B) will justify aluminium bar coiled material and be placed on and carry out homogenizing anneal in the annealing furnace, annealing temperature is 460 ℃, and circle aluminium bar metal keeps taking out after 3 hours to temperature, is cooled to normal temperature;
(C) will justify aluminium bar coiled material aligns through straightener;
(D) the round aluminium bar that will align is through continuous brushing mechanism, and ground surface, and adopt pressure-air that aluminium rod surface is carried out purge guarantees that smooth surface, cleaning do not have dirty;
(E) will justify the aluminium bar through Conform continuous extruder extrusion production aluminium alloy advection pipe, extrusion temperature is 480 ℃, and extrusion speed is 60m/min.
(F) carrying out brazing layer on the surface handles; Brazing layer mass component Fe:0.1%, Si:6%, Cu:0.05%, Mn:0.06%, Cr:0.005%, Mg:0.005%, Zn:0.005%, Ti:0.01%, surplus are Al; Adopt the mode of electric arc spraying; Voltage is 25V, and electric current is 20A, and the thickness of brazing layer is 0.008mm.
(G) will spray advection pipe behind the brazing layer through the tank cooling, align through straightener.
Embodiment 2:
The aluminium alloy advection pipe production stage of band brazing layer is following:
(A) aluminium alloy advection pipe base material is carried out melting by proportioning, the aluminium of acquisition is through aluminium bar continuous casting and tandem rolling machine production circle aluminium bar coiled material;
(B) will justify aluminium bar coiled material and be placed on and carry out homogenizing anneal in the annealing furnace, annealing temperature is 490 ℃, and circle aluminium bar metal keeps taking out after 4.5 hours to temperature, is cooled to normal temperature;
(C) will justify aluminium bar coiled material aligns through straightener;
(D) the round aluminium bar that will align is through continuous brushing mechanism, and ground surface, and adopt pressure-air that aluminium rod surface is carried out purge guarantees that smooth surface, cleaning do not have dirty;
(E) will justify the aluminium bar through Conform continuous extruder extrusion production aluminium alloy advection pipe, extrusion temperature is 490 ℃, and extrusion speed is 65m/min.
(F) carrying out brazing layer on the surface handles; Brazing layer mass component Fe:0.3%, Si:8%, Cu:0.08%, Mn:0.07%, Cr:0.02%, Mg:0.02%, Zn:0.04%, Ti:0.02%, surplus are Al; Adopt the mode of electric arc spraying; Voltage is 25V, and electric current is 25A, and the thickness of brazing layer is 0.009mm.
(G) will spray advection pipe behind the brazing layer through the tank cooling, align through straightener.
Embodiment 3:
The aluminium alloy advection pipe production stage of band brazing layer is following:
(A) aluminium alloy advection pipe base material is carried out melting by proportioning, the aluminium of acquisition is through aluminium bar continuous casting and tandem rolling machine production circle aluminium bar coiled material;
(B) will justify aluminium bar coiled material and be placed on and carry out homogenizing anneal in the annealing furnace, annealing temperature is 530 ℃, and circle aluminium bar metal keeps taking out after 5.5 hours to temperature, is cooled to normal temperature;
(C) will justify aluminium bar coiled material aligns through straightener;
(D) the round aluminium bar that will align is through continuous brushing mechanism, and ground surface, and adopt pressure-air that aluminium rod surface is carried out purge guarantees that smooth surface, cleaning do not have dirty;
(E) will justify the aluminium bar through Conform continuous extruder extrusion production aluminium alloy advection pipe, extrusion temperature is 510 ℃, and extrusion speed is 70m/min.
(F) carrying out brazing layer on the surface handles; Brazing layer mass component Fe:0.45%, Si:12%, Cu:0.12%, Mn:0.08%, Cr:0.03%, Mg:0.03%, Zn:0.09%, Ti:0.03%, surplus are Al; Adopt the mode of electric arc spraying; Voltage is 30V, and electric current is 35A, and the thickness of brazing layer is 0.01mm.
(G) will spray advection pipe behind the brazing layer through the tank cooling, align through straightener.
Embodiment 4:
The aluminium alloy advection pipe production stage of band brazing layer is following:
(A) aluminium alloy advection pipe base material is carried out melting by proportioning, the aluminium of acquisition is through aluminium bar continuous casting and tandem rolling machine production circle aluminium bar coiled material;
(B) will justify aluminium bar coiled material and be placed on and carry out homogenizing anneal in the annealing furnace, annealing temperature is 550 ℃, and circle aluminium bar metal keeps taking out after 7 hours to temperature, is cooled to normal temperature;
(C) will justify aluminium bar coiled material aligns through straightener;
(D) the round aluminium bar that will align is through continuous brushing mechanism, and ground surface, and adopt pressure-air that aluminium rod surface is carried out purge guarantees that smooth surface, cleaning do not have dirty;
(E) will justify the aluminium bar through Conform continuous extruder extrusion production aluminium alloy advection pipe, extrusion temperature is 520 ℃, and extrusion speed is 80m/min.
(F) carrying out brazing layer on the surface handles; Brazing layer mass component Fe:0.6%, Si:14%, Cu:0.15%, Mn:0.1%, Cr:0.05%, Mg:0.05%, Zn:0.1%, Ti:0.05%, surplus are Al; Adopt the mode of electric arc spraying; Voltage is 35V, and electric current is 40A, and the thickness of brazing layer is 0.012mm.
(G) will spray advection pipe behind the brazing layer through the tank cooling, align through straightener.
Claims (3)
1. be with the aluminium alloy advection pipe of brazing layer; Comprise aluminium-alloy pipe and brazing layer; Brazing layer is covered in aluminium-alloy pipe, it is characterized in that said brazing layer comprises that following mass component: Fe:0.1～0.6%, Si:6～14%, Cu:0.05～0.15%, Mn:0.06～0.1%, Cr:0.005～0.05%, Mg:0.005～0.05%, Zn:0.005～0.1%, Ti:0.01～0.05%, surplus are Al.
2. the manufacturing approach of the aluminium alloy advection pipe of band brazing layer as claimed in claim 1 is characterized in that comprising the steps:
(A) adopt the continuous casting and rolling mode to produce round aluminium bar coiled material;
(B) circle aluminium bar coiled material is carried out homogenizing anneal;
(C) will justify aluminium bar coiled material aligns through straightener;
(D) the round aluminium bar that will align is through continuous brushing mechanism, and ground surface, and adopt pressure-air that aluminium rod surface is carried out purge guarantees that smooth surface, cleaning do not have dirty;
(E) will justify the aluminium bar through continuous extruder extrusion production aluminium alloy advection pipe, extrusion temperature is 480～520 ℃, and extrusion speed is 60～80m/min.
(F) carry out brazing layer on the surface and handle, adopt the mode of electric arc spraying, the thickness of brazing layer is 0.008～0.012mm.
(G) will spray advection pipe behind the brazing layer through the tank cooling, align through straightener.
3. the manufacturing approach of the aluminium alloy advection pipe of band brazing layer according to claim 2 is characterized in that, voltage is 25～35V in the said arc spray process of step (E), and electric current is 20～40A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012100945416A CN102620596A (en) | 2012-04-01 | 2012-04-01 | Aluminum alloy horizontal flow pipe with braze welding layer and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100945416A CN102620596A (en) | 2012-04-01 | 2012-04-01 | Aluminum alloy horizontal flow pipe with braze welding layer and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600524A (en) * | 2013-11-20 | 2014-02-26 | 银邦金属复合材料股份有限公司 | Aluminum coated steel pipe material with brazing filler metal |
| CN106392480A (en) * | 2016-10-31 | 2017-02-15 | 四川邑诚科技有限公司 | Manufacturing method of titanium well ring |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060105193A1 (en) * | 2004-10-19 | 2006-05-18 | Corus L.P. | Method of producing an aluminium alloy brazing sheet and light brazed heat exchanger assemblies |
| CN101956102A (en) * | 2010-10-27 | 2011-01-26 | 江苏格林威尔金属材料科技有限公司 | Parallel flow tubes used for heat exchanger and manufacturing method thereof |
| CN102134669A (en) * | 2011-01-04 | 2011-07-27 | 潍坊三源铝业有限公司 | Collecting pipe material for micro-channel heat exchanger and preparation method thereof |
-
2012
- 2012-04-01 CN CN2012100945416A patent/CN102620596A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060105193A1 (en) * | 2004-10-19 | 2006-05-18 | Corus L.P. | Method of producing an aluminium alloy brazing sheet and light brazed heat exchanger assemblies |
| CN101956102A (en) * | 2010-10-27 | 2011-01-26 | 江苏格林威尔金属材料科技有限公司 | Parallel flow tubes used for heat exchanger and manufacturing method thereof |
| CN102134669A (en) * | 2011-01-04 | 2011-07-27 | 潍坊三源铝业有限公司 | Collecting pipe material for micro-channel heat exchanger and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600524A (en) * | 2013-11-20 | 2014-02-26 | 银邦金属复合材料股份有限公司 | Aluminum coated steel pipe material with brazing filler metal |
| CN106392480A (en) * | 2016-10-31 | 2017-02-15 | 四川邑诚科技有限公司 | Manufacturing method of titanium well ring |
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Application publication date: 20120801 |