CN1448242A - Improvement of soldering process of cold drawn tube without composite bed for aluminum soldering radiator - Google Patents
Improvement of soldering process of cold drawn tube without composite bed for aluminum soldering radiator Download PDFInfo
- Publication number
- CN1448242A CN1448242A CN 03116998 CN03116998A CN1448242A CN 1448242 A CN1448242 A CN 1448242A CN 03116998 CN03116998 CN 03116998 CN 03116998 A CN03116998 A CN 03116998A CN 1448242 A CN1448242 A CN 1448242A
- Authority
- CN
- China
- Prior art keywords
- composite bed
- tube
- radiator
- soldering
- thickness
- 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.)
- Granted
Links
Images
Landscapes
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The present invention is the improved brazing process of cold drawn pipe or extruded pipe without composite layer for making heat radiator and belongs to the field of aluminum brazing heat radiator. The present invention features the brazing filler metal compensation with double-sided composite AA4343 heat dissipating band to the pure AA3003 material cold drawn pipe or extruded pipe without composite layer and the increased main sheet material composite layer thickness; re-regulated vertical and horizontal intervals between the assembled back pipe hole and the heat radiating pipe; increased brazing area temperature and prolonged the retention time of the workpiece in the brazing area. The present invention makes the brazed heat radiator has heat dissipating performance and anticorrosive performance similar to those of heat radiator of composite material pipe or B-type pipe but greatly lowered cost.
Description
Technical field:
The present invention relates to does not a kind ofly have the soldering processes that the composite bed drawn tube is used for the aluminium soldering radiator and improves, or rather, with no composite bed drawn tube replace present use with high-frequency welding radiating tube or the Type B pipe of two-sided Al-alloy as material.Belong to aluminium soldering radiator field.
Background technology:
Soldering is a kind of solder technology, and it is that connected mother metal is heated to proper temperature, uses solder simultaneously and makes and be connected mother metal and produce combination.Solder is meant the welding material that adds when soldering, it can be a simple metal, also can be multicomponent alloy.The characteristic that should have as the material of solder is: 1. appropriate melting temperature, and its liquidus curve should be lower than the solidus that is connected mother metal; 2. can wetting mother metal under brazing temperature, and by with mother metal dissolving, diffusion, metallurgical interface reaction, fill joint and form fiber, obtain firm joint.
At car heat exchanger, in the production as radiator, condenser, evaporimeter and heater thermal component, the aluminium soldering that belongs to solder brazing has become a kind of by the glad technology that adopts.This is that aluminium has become to make the ideal material of above-mentioned heat exchanger because aluminium has good anti-corrosive properties, plasticity and thermal conductance.
As mentioned above, the characteristic that should have as the material of solder is the fusing point that the fusing point of almit (Al-Si alloy) should be lower than component materials, and usually in the heat exchanger production application, solder is that the form with thin slice or Al-alloy exists.When low-melting composite bed Ai-Si alloy molten flowed, solder made its cooling back form metal with parts and combines again as structural material.
In present aluminium soldering radiator manufacturing process, major parts such as radiating tube, heat-radiation belt, main leaf or side plate generally all adopt above-mentioned composite.Press actual needs, can select single face composite or two-sided composite again for use.Wherein general the employing with two-sided Al-alloy of radiating tube is the ratio-frequency welding adapter or the Type B pipe (as Fig. 1,2,3) of material, the mother metal of this effective Al-alloy material generally adopts braze ability aluminium manganese (Al-Mn) alloy A A3003 preferably, on one side coat low-melting aluminium silicon (Al-Si) alloy A A4343 as solder, another side then metallized aluminum zinc (Al-Zn) alloy A A7072 as anticorrosive coat.The thickness of composite bed is generally 8%～10% of material thickness.And the heat-radiation belt material has two kinds, and can adopt with AA3003 is mother metal, and both sides all coat AA4343; Also can adopt pure AA3003, no composite bed.Then, the technology by the gas shield furnace brazing welds radiating tube and heat-radiation belt and other part.At present, for guaranteeing the welded heat radiator quality, all selecting for use this is the high-frequency welding radiating tube or the Type B radiating tube of material with two-sided Al-alloy in the aluminium soldering radiator manufacturing industry both domestic and external.
Yet the high-frequency welding radiating tube of two-sided composite or Type B radiating tube are all higher in material cost and equipment investment.Can substitute with the drawn tube of no composite bed, just suitably improve on technology, in the hope of obtaining considerable economic, this be that those skilled in the art thirst for.
Summary of the invention:
Based on above design, the soldering processes that the object of the present invention is to provide a kind of drawn tube (or claiming extruded tube) that does not have composite bed to be used for the aluminium soldering radiator improve, to replace high-frequency welding radiating tube or the Type B radiating tube that present two-sided Al-alloy is a material.Be expected on material cost, reduce greatly in the equipment investment, obtain than the large economy benefit.
The objective of the invention is to implement, that is the present invention has following three features by following three corrective measures.It at first is the compensatory device of solder, the selection of material is that the no composite bed drawn tube (extruded tube) of pure AA3003 (alumal) is as radiating tube, thickness is generally between 0.30～0.35mm, be the heat-radiation belt with two-sided compound AA4343 that guarantees that brazing quality is joined, composite bed thickness is 8～12% of a material thickness; Increasing the composite bed thickness of main leaf material simultaneously, is 8% of material thickness from original main leaf composite bed thickness, now is increased to 10～12%; Two of feature is gaps of readjusting in assembling process between main leaf pore and the radiating tube, make assembling back pore and the upper and lower gap of radiating tube, adjust to 0.02mm～0.03mm from original 0.04mm～0.06mm, the left and right gap of pore and radiating tube, adjust to 0.06mm～0.04mm from 0.12mm～0.08mm, it is adjusted the minimizing amplitude and is about about 50%; The gap adjustment is that the enlarging cutter method when improving assembling realizes; The three soldering processes finishing of feature, the temperature of rising brazing area and prolongation workpiece are in the holdup time of brazing area on the brazing process parameter of original high-frequency tube or Type B pipe, so that solder can more abundant fusion, flow, joint filling, thereby better finish the soldering purpose, usually brazing temperature improves 10～20 ℃, and the holdup time increases by 25～50%
Implement by above-mentioned three corrective measures, the radiator of having realized adopting no composite bed drawn tube (or extruded tube) aspect heat dispersion and corrosion resistance all with the radiator suitable purpose of employing composite high-frequency tube or Type B pipe, satisfy every technical indicator of radiator fully.The conclusion (of pressure testing) contrast of cold-drawn control radiator and Type B control radiator:
| The heat dispersion test | Vibration test | Corrosion resistance test | |
| Test requirements document | Heat dissipation capacity 〉=43.4kw | Test back radiator non-cracking does not have and reveals | Test back radiator non-cracking does not have and reveals |
| Type B control radiator | ????47.16kw | Meet the demands | Meet the demands |
| Cold-drawn control radiator | ????45.78kw | Meet the demands | Meet the demands |
Advantage of the present invention is conspicuous:
(1) improvement on the adopting process meets the demands the technical performance index of the aluminium soldering radiator of no composite bed drawn tube (or extruded tube) fully, and suitable with the radiator that adopts adapter of composite ratio-frequency welding or Type B pipe;
(2) owing to no composite bed, so diminish on the product size after the soldering;
(3) needn't add equipment or frock again, thereby add that the use of no composite bed drawn tube can reduce the manufacturing cost of aluminium soldering radiator greatly.With specification is that 14.5 * 16.8 * 412 and 16 * 2.5 * 796 radiating tube is an example, selecting specification for use is the 1301000MX radiator of 14.5 * 1.68 * 412 radiating tubes, the Type B radiating tube of the two-sided composite of former employing adds the heat-radiation belt of two-sided composite, each radiator tube carrying material cost is 138.57 yuan, and adopt no composite bed drawn tube (extruded tube) to add the heat-radiation belt of two-sided composite, each radiator tube carrying material cost is 62.93 yuan, calculate with 30,000 covers of annual production, annual pipe racks material cost can be saved 226.92 ten thousand yuan; Selecting specification for use is 52489281 radiators of 16 * 2.5 * 796 radiating tubes, the high-frequency welding radiating tube of the two-sided composite of former employing adds the heat-radiation belt of no composite material, each radiator tube carrying material cost is 111.3 yuan, and adopt no composite bed drawn tube (extruded tube) to add the heat-radiation belt of two-sided composite, each radiator tube carrying material cost is 62.34 yuan, also calculate with 30,000 covers of annual production, annual pipe racks material cost can be saved 146.88 ten thousand yuan.This shows that technology provided by the invention has considerable economic value.
Description of drawings:
Fig. 1 is that radiating tube is formed schematic diagram with material in the prior art.
Fig. 2 is that the welded pipe of prior art medium-high frequency is formed schematic diagram with material.
Fig. 3 is that the effective material of Type B is formed schematic diagram in the prior art.
Fig. 4 is the gap schematic diagram of adjusting between front and back main leaf pipe and the radiating tube.
4-2 adjusted among the figure of back before 4-1 adjusted:
The left and right gap of the upper and lower gap 2-of 1-
The specific embodiment:
By following embodiment, to further specify substantive distinguishing features of the present invention and obvious improvement.But the present invention only is confined to embodiment by no means.
As shown in Figure 4, make no composite bed extruded tube as radiating tube with the AA3003 alumal, the two-sided compound AA4343 of heat-radiation belt (low melting point alusil alloy), the thickness of composite bed is about 10% of material, the composite bed thickness of main leaf material is increased to 10%, adjust the gap between main leaf pore and the radiating tube simultaneously, make assembling back pore and radiating tube on, 0.025mm is adjusted to from original 0.05mm in following gap, and the left side of pore and radiating tube, right end clearance is adjusted to 0.05mm from adjusting preceding 0.1mm, adjusting range is about 50%, the 3rd is that to make brazing temperature be that the high-frequency welding radiating tube of composite bed improves 15 ℃ with AA4343 than soldering commonly used, and the holdup time increases by 25%, to guarantee the abundant fusion of solder, diffusion.Thereby suitable when making the quality of welding and adopting multiple tube, satisfy instructions for use.And cost reduces greatly, and deflection reduces.
Claims (9)
1, a kind of do not have the soldering processes that the composite bed drawn tube is used for the aluminium soldering radiator and improve, and it is characterized in that:
1. the solder compensation is the heat-radiation belt with two-sided compound AA4343 of joining at no compound drawn tube or the extruded tube of pure AA3003, increases main leaf material composite bed thickness simultaneously;
2. adjust assembling back pore and upper and lower gap of radiating tube and left and right gap;
The temperature of the brazing area that 3. raises and prolongation workpiece are in the holdup time of brazing area.
2, no composite bed drawn tube according to claim 1 is used for the soldering processes improvement of aluminium soldering radiator, it is characterized in that the drawn tube or the extruded tube wall thickness 0.30～0.35mm of described no composite bed.
3, the no composite bed drawn tube according to claim 1 and 2 soldering processes that are used for the aluminium soldering radiator improve, it is characterized in that described no compound drawn tube or extruded tube join the two-sided composite bed thickness of heat-radiation belt be 8～12% of material thickness; The main leaf composite bed thickness was from being that 8% of material thickness is increased to 10～12% originally.
4, be used for the soldering processes improvement of aluminium soldering radiator by the described no composite bed drawn tube of claim 1, it is characterized in that assembling back pore and the upper and lower gap of radiating tube and adjust to 0.02～0.03mm from 0.04～0.06mm, 0.06～0.04mm is adjusted to from 0.12～0.08mm in the left and right gap of pore and radiating tube, and adjusting the minimizing amplitude is 50%.
5, the soldering processes that are used for the aluminium soldering radiator by claim 1 or 3 described no composite bed drawn tubes improve, and it is characterized in that assembling back pore and upper and lower gap of radiating tube and the adjustment of left and right gap and be enlarging cutter method realization when improving assembling.
6, be used for the soldering processes improvement of aluminium soldering radiator by the described no composite bed drawn tube of claim 1, it is characterized in that brazing temperature raises 10～20 ℃, the holdup time increases by 25～50%.
7, be used for the soldering processes improvement of aluminium soldering radiator by claim 1,2 or 6 described no composite bed drawn tubes, it is characterized in that not having the two-sided composite bed thickness of heat-radiation belt that composite bed drawn tube or extruded tube join is 10% of material thickness, and the composition metal thickness of main leaf material is increased to 10%; The upper and lower gap of pore and radiating tube is adjusted into 0.025mm, and 0.05mm is adjusted in gap, the left and right sides; Brazing temperature improves 15 ℃, and the holdup time increases by 25%.
8, be used for the soldering processes improvement of aluminium soldering radiator by the described no composite bed drawn tube of claim 3, it is characterized in that not having the two-sided composite bed thickness of heat-radiation belt that composite bed drawn tube or extruded tube join is 10% of material thickness, and the composition metal thickness of main leaf material is increased to 10%; The upper and lower gap of pore and radiating tube is adjusted into 0.025mm, and 0.05mm is adjusted in gap, the left and right sides; Brazing temperature improves 15 ℃, and the holdup time increases by 25%.
9, be used for the soldering processes improvement of aluminium soldering radiator by the described no composite bed drawn tube of claim 5, it is characterized in that not having the two-sided composite bed thickness of heat-radiation belt that composite bed drawn tube or extruded tube join is 10% of material thickness, and the composition metal thickness of main leaf material is increased to 10%; The upper and lower gap of pore and radiating tube is adjusted into 0.025mm, and 0.05mm is adjusted in gap, the left and right sides; Brazing temperature improves 15 ℃, and the holdup time increases by 25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116998 CN1269610C (en) | 2003-05-16 | 2003-05-16 | Improvement of soldering process of cold drawn tube without composite bed for aluminum soldering radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116998 CN1269610C (en) | 2003-05-16 | 2003-05-16 | Improvement of soldering process of cold drawn tube without composite bed for aluminum soldering radiator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1448242A true CN1448242A (en) | 2003-10-15 |
| CN1269610C CN1269610C (en) | 2006-08-16 |
Family
ID=28684309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03116998 Expired - Fee Related CN1269610C (en) | 2003-05-16 | 2003-05-16 | Improvement of soldering process of cold drawn tube without composite bed for aluminum soldering radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1269610C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331195A (en) * | 2010-07-12 | 2012-01-25 | 上海德朗汽车零部件制造有限公司 | B-shaped aluminum tube belt type heat radiator for water tank |
| CN104275557A (en) * | 2013-07-08 | 2015-01-14 | 扬州英谛车材实业有限公司 | Ultra Fuse welding process for copper water tank |
| CN109489473A (en) * | 2018-11-29 | 2019-03-19 | 上海萨新东台热传输材料有限公司 | A kind of radiator main side plate and preparation method thereof |
| CN109489469A (en) * | 2018-11-29 | 2019-03-19 | 上海萨新东台热传输材料有限公司 | A kind of radiator flat tube and preparation method thereof suitable for parallel flow condenser |
| CN109579592A (en) * | 2018-11-29 | 2019-04-05 | 上海萨新东台热传输材料有限公司 | A kind of header D type and preparation method thereof |
| CN110961867A (en) * | 2019-11-28 | 2020-04-07 | 天津忠旺铝业有限公司 | Preparation method of aluminum alloy three-layer composite material for brazing |
-
2003
- 2003-05-16 CN CN 03116998 patent/CN1269610C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331195A (en) * | 2010-07-12 | 2012-01-25 | 上海德朗汽车零部件制造有限公司 | B-shaped aluminum tube belt type heat radiator for water tank |
| CN104275557A (en) * | 2013-07-08 | 2015-01-14 | 扬州英谛车材实业有限公司 | Ultra Fuse welding process for copper water tank |
| CN109489473A (en) * | 2018-11-29 | 2019-03-19 | 上海萨新东台热传输材料有限公司 | A kind of radiator main side plate and preparation method thereof |
| CN109489469A (en) * | 2018-11-29 | 2019-03-19 | 上海萨新东台热传输材料有限公司 | A kind of radiator flat tube and preparation method thereof suitable for parallel flow condenser |
| CN109579592A (en) * | 2018-11-29 | 2019-04-05 | 上海萨新东台热传输材料有限公司 | A kind of header D type and preparation method thereof |
| CN110961867A (en) * | 2019-11-28 | 2020-04-07 | 天津忠旺铝业有限公司 | Preparation method of aluminum alloy three-layer composite material for brazing |
| CN110961867B (en) * | 2019-11-28 | 2021-02-09 | 天津忠旺铝业有限公司 | Preparation method of aluminum alloy three-layer composite material for brazing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1269610C (en) | 2006-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101589918B1 (en) | Heat transfer tube and method for producing same | |
| US5490559A (en) | Heat exchanger with finned partition walls | |
| CN101839665B (en) | Thin brazing sheet fin component for high temperature brazing and method for manufacturing heat exchanger using the same | |
| CN105965177B (en) | Heat exchanger tube | |
| CN100574972C (en) | The manufacture method of composite aluminum foil for car heat exchanger | |
| JP4822277B2 (en) | Aluminum alloy brazing sheet for heat exchanger tubes with excellent brazing and corrosion resistance and heat exchanger tubes with excellent corrosion resistance | |
| CN1620518A (en) | Aluminium alloy to be used as fin material | |
| CN102748980A (en) | High covering rate ultra-thin brazing aluminum alloy composite board | |
| JP2002161323A (en) | Aluminum alloy fin-material for heat exchanger superior in formability and brazability | |
| CN1269610C (en) | Improvement of soldering process of cold drawn tube without composite bed for aluminum soldering radiator | |
| WO2019224064A1 (en) | Flux cored brazing preforms | |
| DE10328748B4 (en) | Heat exchangers, in particular intercoolers for commercial vehicles | |
| CN113210608A (en) | Pre-buried brazing flux aluminum alloy composite material and preparation method and application thereof | |
| CN102513722A (en) | Medium temperature Zn-Al solder containing Sr, Si, Ti, Ni and P and having high air tightness | |
| CN201166528Y (en) | Novel cooling tube of automobile radiator | |
| JP2017002341A (en) | Clad material, manufacturing method of pipe, pipe and heat exchanger using pipe | |
| EP1716266B1 (en) | Tube for use in heat exchanger, method for manufacturing said tube, and heat exchanger | |
| CN110181194B (en) | Compound brazing material and brazing process | |
| CN210833213U (en) | Connecting structure of porous flat tube and tube plate of aluminum air cooler | |
| CN112432526A (en) | Plate-fin heat exchanger core | |
| CN104110995A (en) | Composite flat tube, parallel-flow heat exchanger and air conditioner | |
| CN203908376U (en) | Composite flat tube, parallel flow heat exchanger, and air conditioner | |
| CN115838885B (en) | Ultrathin aluminum alloy composite pipe material and preparation method and application thereof | |
| CN102554493A (en) | Medium-temperature almit with high gas tightness | |
| JP3267764B2 (en) | Heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Lurun Cooler Manufacturing Co., Ltd. Assignor: Gao Yong Contract fulfillment period: 2008.6.25 to 2013.6.25 contract change Contract record no.: 2008330000676 Denomination of invention: Improvement of soldering process of cold drawn tube without composite bed for aluminum soldering radiator Granted publication date: 20060816 License type: Exclusive license Record date: 2008.9.26 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.6.25 TO 2013.6.25 Name of requester: LURUN COOLER MANUFACTURE CO.,LTD.,NINGBO Effective date: 20080926 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060816 Termination date: 20120516 |