CN102179588A - Method for coating brazing filler metal on surface of aluminum alloy and aluminum compound material by stirring at semi-solid state - Google Patents
Method for coating brazing filler metal on surface of aluminum alloy and aluminum compound material by stirring at semi-solid state Download PDFInfo
- Publication number
- CN102179588A CN102179588A CN2011101108147A CN201110110814A CN102179588A CN 102179588 A CN102179588 A CN 102179588A CN 2011101108147 A CN2011101108147 A CN 2011101108147A CN 201110110814 A CN201110110814 A CN 201110110814A CN 102179588 A CN102179588 A CN 102179588A
- Authority
- CN
- China
- Prior art keywords
- solder
- friction head
- solid state
- aluminum
- agitating friction
- 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
Images
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention provides a method for coating a brazing filler metal on an aluminum alloy and a compound material thereof by stirring at a semi-solid state, in order to solve the problems of the prior art that the period is longer, the A14C3 fragile compound is easily generated, and the oxidation film cannot be removed thoroughly. The method comprises the following steps: 1) ensuring the brazing filler metal to be at a semi-solid state by using a temperature control system and a heating system and presetting the brazing filler metal on a to-be-welded surface; 2) directly placing a refractory metal stirring friction head into the preset brazing filler metal for preheating the refractory metal stirring friction head, and reserving a certain gap between the refractory metal stirring friction head and the to-be-welded surface; and 3) rotating the refractory metal stirring friction head so as to extrude the solid phase component at a semi-solid state for breaking a substrate oxidation film, and covering a liquid phase component on the surface of the substrate while breaking the oxidation film, thereby avoiding the secondary oxidation of the substrate, performing the constant-speed relative motion, and forming the coated brazing filler metal till finishing the treatment. The method has the advantages that the operation is simple, the equipment cost is low, the temperature for coating the brazing filler metal is low, the rate of breaking the oxidation film is high, the secondary oxidation and the change of substrate thickness are avoided, and the coating quality is increased.
Description
Technical field
The present invention relates to a kind of solder coating coating method.
Background technology
The novel space structure material of high specific strength, high-dimensional stability is the basis that alleviates spacecraft weight, improves the spacecraft emissivities and improve the instantaneous emergency character of weaponry.Aluminum matrix composite has high specific strength, height ratio elastic modelling quantity, high-dimensional stability, advantage such as anti-wear performance preferably, having great potential use value at space industry and weaponry field, also is the emphasis of current China new material basic research simultaneously.But, aluminum matrix composite is desired further to apply on space flight, weaponry and civilian goods, just must solve its secondary operations technical problem, particularly the solder technology of some complex components lags far behind other Study on Technology, become the bottleneck that this kind material moves towards practicability, the problem in science of therefore furtheing investigate in the aluminum matrix composite welding is very important.
Why the welding research of aluminum matrix composite lags far behind other secondary operations technology is because the special construction characteristics of this material cause its weldability very poor, and wild phase and matrix are the main difficult point of welding in the difference aspect physics and the chemical property.At present, the U.S., Russia, west industrially developed country such as Britain are carrying out number of research projects aspect the aluminum matrix composite welding, but the welding that also only limits to the continuous fiber reinforced aluminum matrix composites has obtained application, and the welding of particle enhanced aluminum-based composite material both at home and abroad also only is under lab to study, as arc welding, Laser Welding, soldering, diffusion welding (DW), instantaneous liquid phase weldering etc., wherein the weldering of soldering and instantaneous liquid phase is owing to can be controlled at welding temperature in the scope that matrix and wild phase do not react, the wild phase scaling loss that melting high temperature brings and the problem of interfacial reaction have been avoided, be considered to be suitable for the method for the welding of this kind material, the report about this respect research was also maximum both at home and abroad in recent years.
But, in above-mentioned connection technical process,, must clear up the weldment surface film oxide before the weldering in order to make the matrix of composite form metallurgical the connection with matrix with matrix or packing material, welding process must be carried out under vacuum environment, and relies on the newborn oxide-film of pressure distortion crusher surface.A variety of welding methods all do not reach the result of expectation, and the method for welding that people use always also has the problem that strength of joint is subjected to the solder restriction, makes the welding performance of aluminum matrix composite fall flat.
Existing solder is placed with following mode:
L, preseting solder coating: solder is made into sheet or strip, puts in the middle of two welded articles or the next door, utilize capillarity to connect.The loaded down with trivial details inconvenience of the method technology.
2, melting applies: because of high temperature melting own makes wild phase and matrix alloy in the aluminum matrix composite stronger interfacial reaction takes place, worsen the performance of mother metal, and because of some wild phase (as SiC) and matrix Al thermodynamic instability in bigger temperature range when the high temperature, the interfacial reaction that the melting coated with high temperature is harmful down is inevitable, further worsens the performance of joint.
3, ultrasonic wave applies: ultrasonic technology is applied in the solder of some aluminium alloy and aluminium base compound coating and aluminium, but the manufacturing complexity of ultrasonic power generator, cost is higher.The coating time, oxide-film was removed not thorough more in short-term; But the oversize corrosion that then easily causes mother metal of coating time is unfavorable to coating quality equally, so be difficult to the technological parameter that control applies.
4, flame applies: use the melting coating material to treat to apply object and carry out the method that applies, the method needs solder and matrix that wetting and spreading is preferably arranged, but fusible coating is easily oxidized, owing to the obstruct of Al2O3, and coat second-rate.
5, the scraping solder applies: shortcoming be the cycle long, be uneven to the removal of oxide-film, remove halfway place at oxide-film, coat comes off easily.
6, spin friction surface-coated: utilize spin friction head scraping matrix surface, make matrix expose fresh metal surface, liquid solder covers the metal surface of broken oxide-film, prevent secondary oxidation, but its temperature that applies solder is higher, and destroy the thickness of matrix self, easily bring the parent metal bits of friction into solder.
Summary of the invention
The present invention exists the cycle to grow, easily generate A1 in order to solve in the prior art
4C
3Frangible compounds, oxide-film are removed halfway problem, and apparatus expensive, shortcoming such as cost is very high, the weldment size shape is also very restricted, apply solder method and proposed the rotation of a kind of aluminium alloy and composite material semi-solid state thereof, what adopt is that friction head does not contact matrix, but rely on the solid phase particles of semisolid solder to remove to push matrix, thereby reach rupture of membranes and purpose of connecting, and application temperature is the semi solid zone of coating material than hanging down.
Technical scheme of the present invention is as follows:
A kind of aluminium alloy and composite material semi-solid state rotation thereof apply solder method, and its step is as follows:
Step 1: make aluminum matrix composite or aluminum alloy materials A be heated to the solder semi-solid temperature by temperature-controlling system E and heating system R, solder is placed fusing forms preseting solder B on the surface to be welded of aluminum matrix composite or aluminum alloy materials A.
Step 2: C directly inserts in the solder with refractory metal agitating friction head, and with the surface to be welded of aluminum matrix composite or the aluminum alloy materials A 0.1 ~ 1mm that keeps at a distance, make high-temperature metal agitating friction head C be preheated to the solder temperature.
Step 3: rotation refractory metal agitating friction head C; make its roughened end surface drive the semisolid solder; make the extruding of solid phase composition so that broken aluminum matrix composite or aluminum alloy materials A oxide-film; in broken oxide-film; liquid phase part covers matrix surface; and carry out at the uniform velocity relative motion between aluminum matrix composite or aluminum alloy materials A and the refractory metal agitating friction head C; form solder coat D; the metal that solder coat D protection is removed oxide-film disposes until whole welding surface not by the oxidation second time.
The invention has the advantages that simple to operate; do not need complex apparatus; mother metal is lacked, do not destroyed to the broken oxide-film rate of aluminium alloy and aluminum matrix composite height, cycle; easily the liquid phase part of realizing automation, semisolid solder protects the mother metal surface of broken oxide-film not by oxidation again; because solder is in semisolid and makes coating be non-dendritic structure, improved the welding quality of existing method for welding simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of refractory metal agitating friction head C;
Fig. 3 is a semisolid coating principle schematic.
The specific embodiment
In conjunction with Fig. 1, Fig. 2 and Fig. 3 this method is described, step is as follows:
Step 1: make aluminum matrix composite or aluminum alloy materials A be heated to 415 ℃ by temperature-controlling system E and heating system R, make solder be in semisolid, the ZnAl solder is placed form preseting solder B on the surface to be welded of aluminum matrix composite or aluminum alloy materials A.Wherein solder chemical composition percentage is: zinc is 70 ~ 95%, and aluminium is surplus.Solder adopts solder sheet or manual application solder powder or solder rod on needed position.
Step 2: refractory metal agitating friction head C directly inserted be in preheating in the semisolid solder, and keep certain distance 0. 2mm with the surface of aluminum matrix composite or aluminum alloy materials A;
Step 3: the roughened end surface of refractory metal agitating friction head C begins rotation and drives the semisolid solder, rotary speed is: 65 ~ 1500 rev/mins, make the extruding of solid phase composition so that broken aluminum matrix composite or aluminum alloy materials A oxide-film, in broken oxide-film, liquid phase part covers matrix surface, and carry out at the uniform velocity relative motion between aluminum matrix composite or aluminum alloy materials A and the refractory metal agitating friction head C, speed is 15 ~ 50mm/min, form solder coat D, the metal that solder coat D protection is removed oxide-film disposes until whole welding surface not by the oxidation second time;
The material of the refractory metal agitating friction head C that uses in the said method is as heat-resisting alloy or pottery, and referring to Fig. 2, working portion C1 is an annular, hollow, and the thickness of its circle wall is at 0.5 ~ 5mm; Be held portion C 2 for solid, be installed on the first-class anchor clamps of drill point.
Solder belongs to semisolid, and fraction solid is 40 ~ 90%.
The operation principle of said method is: see accompanying drawing 3, in the semisolid solder, insert refractory metal stirring-head C, make solid phase particles 1 extruding in the semi-solid alloy by applying the suitable stirring field of force, broken so that remove aluminum matrix composite matrix oxide-film 3, make that intergranular liquid phase 2 with the aluminum matrix composite matrix suitable diffusion dissolution takes place in the semi-solid alloy, so that form dissolving liquid phase 4 at the aluminum matrix composite matrix surface, thereby formation dissolving layer, this moment, the SiC particle 5 in dissolving layer entered in the weld seam under the effect of stirring-head, and 6 are the SiC particle that enters weld seam.
Claims (9)
1. the rotation of aluminium alloy and composite material semi-solid state thereof applies solder method, it is characterized in that step is as follows:
Step 1: make aluminum matrix composite or aluminum alloy materials (A) be heated to solder by temperature-controlling system (E) and heating system (R) and be in semisolid, solder is placed fusing forms preseting solder (B) on the surface to be welded of aluminum matrix composite or aluminum alloy materials (A);
Step 2: refractory metal agitating friction head (C) is directly inserted in the solder, and with the surface to be welded of aluminum matrix composite or aluminum alloy materials (A) 0.1 ~ 1mm that keeps at a distance, make high-temperature metal agitating friction head (C) be preheated to the solder temperature;
Step 3: rotation refractory metal agitating friction head (C), drive the semisolid solder by its roughened end surface, make the extruding of solid phase composition so that the oxide-film on broken aluminum matrix composite or aluminum alloy materials (A) surface, in broken oxide-film, liquid phase part covers aluminum matrix composite or aluminum alloy materials (A) matrix surface of rupture of membranes; Make simultaneously between aluminum matrix composite or aluminum alloy materials (A) and the refractory metal agitating friction head (C) and carry out at the uniform velocity relative motion; form solder coat (D) at aluminum matrix composite or aluminum alloy materials (A) surface; the metal that solder coat (D) protection is removed oxide-film disposes until whole welding surface not by the oxidation second time.
2. aluminium alloy according to claim 1 and composite material semi-solid state rotation thereof apply solder method, and it is characterized in that the percentage of described solder chemical composition is: zinc 70 ~ 95%, surplus are aluminium.
3. rotation applies solder method according to the described aluminium alloy of claim l and composite material semi-solid state thereof, it is characterized in that placing in the step 1 solder of the surface to be welded of aluminum matrix composite or aluminum alloy materials (A) to adopt solder sheet or manual application solder powder or solder rod.
4. aluminium alloy according to claim 1 and composite material semi-solid state rotation thereof apply solder method, it is characterized in that refractory metal agitating friction head (C) rotary speed is in the step 4: 65 ~ 1500 rev/mins.
5. rotation applies solder method according to the described aluminium alloy of claim l and composite material semi-solid state thereof, it is characterized in that the speed of the at the uniform velocity relative motion between aluminum matrix composite in the step 4 or aluminum alloy materials (A) and the refractory metal agitating friction head (C) is 15 ~ 50mm/min.
6. aluminium alloy according to claim 1 and composite material semi-solid state rotation thereof apply solder method, and the material that it is characterized in that refractory metal agitating friction head (C) is heat-resisting alloy or pottery.
7. aluminium alloy according to claim 1 and composite material semi-solid state rotation thereof apply solder method, it is characterized in that the structure of refractory metal agitating friction head (C) is an annular, and thickness is at 0.5 ~ 5mm.
8. aluminium alloy according to claim 1 and composite material semi-solid state rotation thereof apply solder method, it is characterized in that solder belongs to semisolid, and fraction solid is 40 ~ 90%.
9. aluminium alloy according to claim 1 and composite material semi-solid state rotation thereof apply solder method, it is characterized in that the agitating friction head inserts in the solder, but the agitating friction head do not contact with mother metal, and the distance between agitating friction head and the mother metal is 0.1 ~ 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101108147A CN102179588A (en) | 2011-04-29 | 2011-04-29 | Method for coating brazing filler metal on surface of aluminum alloy and aluminum compound material by stirring at semi-solid state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101108147A CN102179588A (en) | 2011-04-29 | 2011-04-29 | Method for coating brazing filler metal on surface of aluminum alloy and aluminum compound material by stirring at semi-solid state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102179588A true CN102179588A (en) | 2011-09-14 |
Family
ID=44565980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101108147A Pending CN102179588A (en) | 2011-04-29 | 2011-04-29 | Method for coating brazing filler metal on surface of aluminum alloy and aluminum compound material by stirring at semi-solid state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102179588A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581474A (en) * | 2012-03-08 | 2012-07-18 | 沈阳航空航天大学 | Semi-solid friction stir welding method using fixed shaft shoulder and rotary large-diameter stirring pin |
| CN104400170A (en) * | 2014-10-29 | 2015-03-11 | 太原理工大学 | Aluminum alloy ultrasonic semi-solid coating brazing method |
| CN105522246A (en) * | 2016-03-09 | 2016-04-27 | 哈尔滨工业大学（威海） | Ultrasonic-assisted semi-solid welding method |
| CN109590600A (en) * | 2019-02-02 | 2019-04-09 | 哈尔滨工业大学 | A method of realizing friction-stir tool and its auxiliary titanium alloy low temperature diffusion connection of metal surface crystal grain refinement |
| CN110129792A (en) * | 2019-05-30 | 2019-08-16 | 西安交通大学 | Full liquid stirring and Semi-solid Stirring cladding process prepare multiple tube/coating method and device |
| CN114619129A (en) * | 2020-12-10 | 2022-06-14 | 上海交通大学 | Method for connecting aluminum alloy thick plate based on melt impact method, integrally connected aluminum alloy thick plate material and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001176893A (en) * | 1999-12-21 | 2001-06-29 | Nec Machinery Corp | Die bonding |
| JP2005286274A (en) * | 2004-03-31 | 2005-10-13 | Uchihashi Estec Co Ltd | Soldering method |
| CN101007371A (en) * | 2006-01-26 | 2007-08-01 | Ejot合资有限公司 | Fastener element for friction welding to elemnt |
| CN101104215A (en) * | 2007-08-06 | 2008-01-16 | 哈尔滨工业大学 | Aluminium alloy and its composite material rotary friction surface coating solder method |
| CN101596630A (en) * | 2009-06-08 | 2009-12-09 | 重庆理工大学 | Aluminium alloy and composite material non-vacuum semi-solid state stirring brazing method thereof |
-
2011
- 2011-04-29 CN CN2011101108147A patent/CN102179588A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001176893A (en) * | 1999-12-21 | 2001-06-29 | Nec Machinery Corp | Die bonding |
| JP2005286274A (en) * | 2004-03-31 | 2005-10-13 | Uchihashi Estec Co Ltd | Soldering method |
| CN101007371A (en) * | 2006-01-26 | 2007-08-01 | Ejot合资有限公司 | Fastener element for friction welding to elemnt |
| CN101104215A (en) * | 2007-08-06 | 2008-01-16 | 哈尔滨工业大学 | Aluminium alloy and its composite material rotary friction surface coating solder method |
| CN101596630A (en) * | 2009-06-08 | 2009-12-09 | 重庆理工大学 | Aluminium alloy and composite material non-vacuum semi-solid state stirring brazing method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581474A (en) * | 2012-03-08 | 2012-07-18 | 沈阳航空航天大学 | Semi-solid friction stir welding method using fixed shaft shoulder and rotary large-diameter stirring pin |
| CN104400170A (en) * | 2014-10-29 | 2015-03-11 | 太原理工大学 | Aluminum alloy ultrasonic semi-solid coating brazing method |
| CN105522246A (en) * | 2016-03-09 | 2016-04-27 | 哈尔滨工业大学（威海） | Ultrasonic-assisted semi-solid welding method |
| CN109590600A (en) * | 2019-02-02 | 2019-04-09 | 哈尔滨工业大学 | A method of realizing friction-stir tool and its auxiliary titanium alloy low temperature diffusion connection of metal surface crystal grain refinement |
| CN110129792A (en) * | 2019-05-30 | 2019-08-16 | 西安交通大学 | Full liquid stirring and Semi-solid Stirring cladding process prepare multiple tube/coating method and device |
| CN114619129A (en) * | 2020-12-10 | 2022-06-14 | 上海交通大学 | Method for connecting aluminum alloy thick plate based on melt impact method, integrally connected aluminum alloy thick plate material and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102179588A (en) | Method for coating brazing filler metal on surface of aluminum alloy and aluminum compound material by stirring at semi-solid state | |
| US9943929B2 (en) | Metal matrix composite creation | |
| Zhang et al. | Investigation on dissimilar underwater friction stir lap welding of 6061-T6 aluminum alloy to pure copper | |
| EP1902806B1 (en) | Process of microwave brazing with powder materials | |
| CN106271214B (en) | A kind of preparation method being brazed stainless steel Ag-Cu/W nano-multilayer film solder | |
| CN102618868B (en) | Method for obtaining composite coating by means of laser cladding of extrusion preset powder | |
| US20080145566A1 (en) | Microwave brazing process for forming coatings | |
| CN104400237A (en) | Multi-physical-field auxiliary dissimilar metal material welding method | |
| Ebrahimian et al. | Friction stir soldering: A novel route to produce graphite-copper dissimilar joints | |
| CN101596630B (en) | Non-vacuum semi-solid stirring brazing method for aluminum alloy and composite material thereof | |
| Yi et al. | Differences in microstructure and properties of C/C composites brazed with Ag-Cu-Ti and Ni-Cr-P-Ti pasty brazing filler | |
| CN1173799C (en) | Components coated with aluminium-silicon alloy | |
| CN105562932A (en) | Method for carrying out lap-jointing on laser cladding composite coating by adopting friction-stir welding technology | |
| JP5295129B2 (en) | Method for refractory assembly of carbon material and copper alloy | |
| JP2009172615A (en) | Brazing method of aluminum or aluminum alloy member | |
| White et al. | Combustion joining of refractory materials: Carbon–carbon composites | |
| CN101104215B (en) | Aluminium alloy and its composite material rotary friction surface coating solder method | |
| Zhu et al. | Ultrarapid formation of multi-phase reinforced joints of hypereutectic Al-Si alloys via an ultrasound-induced liquid phase method using Sn-51In interlayer | |
| JP2008534290A (en) | Aluminum component with a partial or complete coating of the brazing surface and method of manufacturing the coating | |
| CN110216365A (en) | A kind of friction stir welding method of enhancing aluminum-base composite material by silicon carbide particles | |
| CN107378167B (en) | A method of improving SiCp/Al composite material stirring friction welding agitator head wearability | |
| JP2018531795A (en) | Friction stir welding tool | |
| CN1701905A (en) | Non-solder brass solder coating material for aluminium product | |
| Loehman et al. | Reactions of Hf-Ag and Zr-Ag alloys with Al 2 O 3 at elevated temperatures | |
| CN102554221B (en) | Hydrocarbon coated cermet powder and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110914 |