CN103537881A - Method for preparing alclad on surface of aluminum lithium alloy plate - Google Patents
Method for preparing alclad on surface of aluminum lithium alloy plate Download PDFInfo
- Publication number
- CN103537881A CN103537881A CN201310460296.0A CN201310460296A CN103537881A CN 103537881 A CN103537881 A CN 103537881A CN 201310460296 A CN201310460296 A CN 201310460296A CN 103537881 A CN103537881 A CN 103537881A
- Authority
- CN
- China
- Prior art keywords
- lithium alloy
- slab ingot
- aluminium lithium
- pure aluminum
- alclad
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
Abstract
The invention discloses a method for preparing alclad on the surface of an aluminum lithium alloy plate. The method is suitable for being used on existing Al-Mg-Li-X aluminum lithium alloy and existing Al-Cu-Li-X aluminum lithium alloy. A slab ingot of the aluminum lithium alloy on which uniformity is carried out and a pure aluminum plate on which the milling process is carried out are stacked up after the slab ingot milling process is carried out, then penetrating loop welding is carried out along the side portion of the position of the stacked aluminum lithium alloy and the pure aluminum plate through a welding method, and an opening with the diameter ranging from 5mm to 10 mm is reserved in the intersection of a circumferential weld. A vacuumizing device is placed at the opening to carry out the vacuumizing process, and after the vacuumizing process is stable, the opening is welded together, and the sealing of the pure aluminum plate and the slab ingot is achieved; the pure aluminum plate and the slab ingot are placed into an air furnace to be heated to 300 DEG C to 500 DEG C; after a blank is heated thoroughly, cogging and hot rolling seaming are carried out, and flanges which are not welded together after hot rolling are cut off. The composite blank on which trimming is carried out is placed into the air furnace to be heated again, and an alclad thin plate is prepared through the normal rolling technology. According to the technical scheme, the effect of an oxide layer on the surface of the aluminum lithium alloy is removed, the alloy and a pure aluminum layer are combined tightly, and the machining process property and corrosion resistance of the alloy are effectively improved.
Description
Technical field
The present invention is a kind of preparation method of aluminium lithium alloy plate surface alclad, belongs to the technical field of hot working of metal.
Background technology
Aluminium lithium alloy has high specific strength, high specific stiffness, good features such as traumatic resistance energy, and its thin plate is highly suitable for aircraft skin material.At present, China and the aluminium lithium alloy thin plate that is about to apply is mainly Al-Mg-Li system and Al-Cu-Li-X is two classes, and wherein the former has good welding performance and corrosion resisting property, but processing characteristics is poor, during thin plate rolling, there is stronger tearing tendency, cause the yield rate of sheet material not high; And the latter has higher intensity and good traumatic resistance energy, but when being used, T3 state there is comparatively significant intercrystalline corrosion tendency.The existence of above-mentioned two kinds of problems, has limited applying of aluminium lithium alloy thin plate.
The rolling crack that mode by surface alclad can effectively suppress thin plate at the additional thick aluminium coating of 0.1～0.2mm of thin sheet surface is inclined to, and when aluminium coating thickness is 20～80 μ m, can in the situation that not affecting alloy property, effectively improve the decay resistance of sheet material.Yet because Li element in aluminium lithium alloy is very easy to oxidation when heating, and on top layer, form loose and thicker de-lithium layer, the impact that traditional surface alclad method is subject to oxide-film cannot form the aluminum layer of combining closely at alloy surface, causes alclad technique to implement.
Summary of the invention
The present invention designs for above-mentioned the deficiencies in the prior art the preparation method that a kind of aluminium lithium alloy plate surface alclad is provided just, its objective is the impact of eliminating aluminium lithium alloy surface oxide layer, alloy is combined with aluminum layer closely, improve the precision of aluminium coating thickness, effectively improved process industrial art performance and the corrosion resisting property of alloy.
The object of the invention is to be achieved through the following technical solutions:
The preparation method of this kind of aluminium lithium alloy plate surface alclad, described aluminium lithium alloy is that Al-Mg-Li-X system and Al-Cu-Li-X are aluminium lithium alloy, it is characterized in that: the step of the method is:
(1) slab ingot milling face is processed: the pure aluminum plate that the aluminium lithium alloy slab ingot after homogenising is processed and alclad are used carries out the processing of High Speed Milling Operation face, removes surface oxide layer and obtain glossy surface during milling face;
(2) welding: the pure aluminum plate after milling face and aluminium lithium alloy slab ingot are stacked together, by laser or agitating friction welding, both are connected together along edge joint weld, but retain the opening of 5～10mm on edge;
(3) vacuumize processing: at above-mentioned opening part, vacuum extractor is installed, space between pure aluminum plate and aluminium lithium alloy slab ingot is evacuated to 0.01～0.1Pa, check without after gas leakage point, this opening welding is shut, make pure aluminum plate and aluminium lithium alloy slab ingot along edge, form closed loop;
(4) hot rolling seam: the slab ingot that (3) step is welded is put into heating furnace and is heated to 300～500 ℃, after slab ingot heat penetration, send into the hot rolling seam processing that milling train carries out 2～3 passages, rolling pass drafts is controlled at 2～5mm, blank after hot rolling welding is carried out to trimming processing, the unconjugated overlap of limit portion while removing rolling;
(5) reheat rolling: by step (4) the blank of trimming after processing be reentered into and in heating furnace, be heated to 420 ℃～470 ℃ and carry out hot rolling processing, through overheated roughing and hot finishing, to rolling after specific thickness, obtain the aluminium lithium alloy plate with aluminium coating.The thickness of aluminium coating is 0.1～0.2mm.
The advantage of technical solution of the present invention is:
1, taking the method can be that aluminium lithium alloy carries out alclad processing to Al-Mg-Li-X system and Al-Cu-Li-X that cannot alclad in traditional preparation technology, thereby improves the former processing characteristics and the latter's corrosion resisting property;
2, other the method for improving aluminium lithium alloy processing characteristics and corrosion resisting property relatively, it is easy that surface alclad method of the present invention has operating procedure, is convenient to large suitability for industrialized production and implements, and is beneficial to the advantages such as production control.
The specific embodiment
Below with reference to embodiment, technical solution of the present invention is further described:
The applicable aluminium lithium alloy of preparation method of this kind of aluminium lithium alloy plate surface alclad is that Al-Mg-Li-X system and Al-Cu-Li-X are aluminium lithium alloy, and alloying component and percentage by weight are: Cu2.0～5.0%, Li0.8～2.5%, Mn0.20～0.60%, Zn0.20～0.80%, Zr0.04～0.20%, Mg0.20%～0.80%, in Ag0.1～0.7% any 1～5 kind, Si≤0.10%, Fe≤0.10%, Ti≤0.12%, other impurity is single≤and 0.05%, total amount≤0.15%, surplus is Al.The step of the method is:
(1) slab ingot milling face is processed: the pure aluminum plate that the aluminium lithium alloy slab ingot after homogenising is processed and alclad are used carries out the processing of High Speed Milling Operation face, removes surface oxide layer and obtain glossy surface during milling face;
(2) welding: the two sides of the pure aluminum plate after milling face and aluminium lithium alloy slab ingot is stacked together, by laser or agitating friction welding, both is connected together along edge joint weld, but retain the opening of 5～10mm on edge;
(3) vacuumize processing: at above-mentioned opening part, vacuum extractor is installed, to the space between pure aluminum plate and aluminium lithium alloy slab ingot be evacuated to 0.01～0.1Pa and keep stable after, check without gas leakage point, this opening welding is shut, make pure aluminum plate and aluminium lithium alloy slab ingot form closed loop along edge;
(4) hot rolling seam: the slab ingot that (3) step is welded is put into heating furnace and is heated to 300～500 ℃, after slab ingot heat penetration, send into the hot rolling seam processing that milling train carries out 2～3 passages, rolling pass drafts is controlled at 2～5mm, blank after hot rolling welding is carried out to trimming processing, the unconjugated overlap of limit portion while removing rolling;
(5) reheat rolling: by step (4) the blank of trimming after processing be reentered into and in heating furnace, be heated to 420 ℃～470 ℃ and carry out hot rolling processing, through overheated roughing and hot finishing, to rolling after specific thickness, obtain the aluminium lithium alloy plate with aluminium coating.The thickness of aluminium coating is 0.1～0.2mm.
Adopting said method to prepare respectively with the thickness of aluminium coating is 5A90 aluminium lithium plate and the 2A97 aluminium lithium alloy thin plate of 2.0mm, 3.0mm.Relation between tensile property after wherein 5A90 aluminium lithium alloy thin plate aluminium coating thickness and yield rate and solid solution+artificial aging processed (L to) is as shown in table 1; 2A97 aluminium lithium alloy thin plate with aluminium coating is tested its tensile property and corrosive nature after solid solution+natural aging treatment, and result is as shown in table 2.
Table 1
Table 2
Data in consolidated statement 1, table 2, absolutely prove and take aluminium lithium alloy thin sheet surface alclad preparation method proposed by the invention, after the aluminium coating of selecting 0.1～0.2mm thickness, can effectively improve Al-Mg-Li-X and be the yield rate of latten and alloy performance impact is little; After selecting thickness to be the aluminium coating of 50～75 μ m thickness, can under the prerequisite that does not affect other performances of alloy, effectively improve Al-Cu-Li-X and be associated golden corrosion resisting property.
Claims (2)
1. a preparation method for aluminium lithium alloy plate surface alclad, described aluminium lithium alloy is that Al-Mg-Li-X system and Al-Cu-Li-X are aluminium lithium alloy, it is characterized in that: the step of the method is:
(1) slab ingot milling face is processed: the pure aluminum plate that the aluminium lithium alloy slab ingot after homogenising is processed and alclad are used carries out the processing of High Speed Milling Operation face, removes surface oxide layer and obtain glossy surface during milling face;
(2) welding: the pure aluminum plate after milling face and aluminium lithium alloy slab ingot are stacked together, by laser or agitating friction welding, both are connected together along edge joint weld, but retain the opening of 5～10mm on edge;
(3) vacuumize processing: at above-mentioned opening part, vacuum extractor is installed, space between pure aluminum plate and aluminium lithium alloy slab ingot is evacuated to 0.01～0.1Pa, check without after gas leakage point, this opening welding is shut, make pure aluminum plate and aluminium lithium alloy slab ingot along edge, form closed loop;
(4) hot rolling seam: the slab ingot that (3) step is welded is put into heating furnace and is heated to 300～500 ℃, after slab ingot heat penetration, send into the hot rolling seam processing that milling train carries out 2～3 passages, rolling pass drafts is controlled at 2～5mm, blank after hot rolling welding is carried out to trimming processing, the unconjugated overlap of limit portion while removing rolling;
(5) reheat rolling: by step (4) the blank of trimming after processing be reentered into and in heating furnace, be heated to 420 ℃～470 ℃ and carry out hot rolling processing, through overheated roughing and hot finishing, to rolling after specific thickness, obtain the aluminium lithium alloy plate with aluminium coating.
2. the preparation method of aluminium lithium alloy plate surface alclad according to claim 1, is characterized in that: the thickness of aluminium coating is 0.1～0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310460296.0A CN103537881B (en) | 2013-09-30 | 2013-09-30 | A kind of preparation method of alclad on surface of aluminum lithium alloy plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310460296.0A CN103537881B (en) | 2013-09-30 | 2013-09-30 | A kind of preparation method of alclad on surface of aluminum lithium alloy plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103537881A true CN103537881A (en) | 2014-01-29 |
| CN103537881B CN103537881B (en) | 2016-06-22 |
Family
ID=49961940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310460296.0A Active CN103537881B (en) | 2013-09-30 | 2013-09-30 | A kind of preparation method of alclad on surface of aluminum lithium alloy plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103537881B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014999A (en) * | 2014-06-12 | 2014-09-03 | 沈阳飞机工业（集团）有限公司 | Aluminum alloy skin stretching forming method |
| CN104475967A (en) * | 2014-12-30 | 2015-04-01 | 东北大学 | Vacuum stirring friction welding device and manufacturing method of metal composite plate |
| CN106271035A (en) * | 2016-10-14 | 2017-01-04 | 重庆大学 | A kind of surface protection improves the method for aluminium lithium alloy strength of welded joint |
| CN111349873A (en) * | 2018-12-24 | 2020-06-30 | 中国航发北京航空材料研究院 | Preparation method of Al-Mg series aluminum alloy clad aluminum plate |
| CN111672904A (en) * | 2020-05-27 | 2020-09-18 | 北京科技大学 | Preparation method of titanium steel layered composite thin coil |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000153372A (en) * | 1998-11-19 | 2000-06-06 | Nkk Corp | Manufacture of copper of copper alloy clad steel plate having excellent working property |
| US6251527B1 (en) * | 1998-04-20 | 2001-06-26 | Alcoa Inc. | Alclad inset into grooved ingot |
| CN1686653A (en) * | 2005-04-06 | 2005-10-26 | 吉欣（英德）热轧不锈复合钢有限公司 | Processing method of press forming soldering high rolling composite blank |
| CN102248372A (en) * | 2011-06-22 | 2011-11-23 | 河南盛荣特种钢业有限公司 | Method for producing single-sided composite stainless steel cold rolling base stock |
| CN103231216A (en) * | 2013-05-10 | 2013-08-07 | 山东亚盛重工股份有限公司 | Manufacturing technique and device for composite board |
-
2013
- 2013-09-30 CN CN201310460296.0A patent/CN103537881B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6251527B1 (en) * | 1998-04-20 | 2001-06-26 | Alcoa Inc. | Alclad inset into grooved ingot |
| JP2000153372A (en) * | 1998-11-19 | 2000-06-06 | Nkk Corp | Manufacture of copper of copper alloy clad steel plate having excellent working property |
| CN1686653A (en) * | 2005-04-06 | 2005-10-26 | 吉欣（英德）热轧不锈复合钢有限公司 | Processing method of press forming soldering high rolling composite blank |
| CN102248372A (en) * | 2011-06-22 | 2011-11-23 | 河南盛荣特种钢业有限公司 | Method for producing single-sided composite stainless steel cold rolling base stock |
| CN103231216A (en) * | 2013-05-10 | 2013-08-07 | 山东亚盛重工股份有限公司 | Manufacturing technique and device for composite board |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014999A (en) * | 2014-06-12 | 2014-09-03 | 沈阳飞机工业（集团）有限公司 | Aluminum alloy skin stretching forming method |
| CN104014999B (en) * | 2014-06-12 | 2016-11-23 | 沈阳飞机工业（集团）有限公司 | A kind of aluminum alloy outer cover stretch forming method |
| CN104475967A (en) * | 2014-12-30 | 2015-04-01 | 东北大学 | Vacuum stirring friction welding device and manufacturing method of metal composite plate |
| CN106271035A (en) * | 2016-10-14 | 2017-01-04 | 重庆大学 | A kind of surface protection improves the method for aluminium lithium alloy strength of welded joint |
| CN111349873A (en) * | 2018-12-24 | 2020-06-30 | 中国航发北京航空材料研究院 | Preparation method of Al-Mg series aluminum alloy clad aluminum plate |
| CN111349873B (en) * | 2018-12-24 | 2021-11-02 | 中国航发北京航空材料研究院 | Preparation method of Al-Mg series aluminum alloy clad aluminum plate |
| CN111672904A (en) * | 2020-05-27 | 2020-09-18 | 北京科技大学 | Preparation method of titanium steel layered composite thin coil |
| CN111672904B (en) * | 2020-05-27 | 2021-11-30 | 北京科技大学 | Preparation method of titanium steel layered composite thin coil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103537881B (en) | 2016-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107699831B (en) | Pack rolling as-cast state TiAl sheet alloy method based on composite structural design | |
| CN103537881A (en) | Method for preparing alclad on surface of aluminum lithium alloy plate | |
| CN104209697B (en) | The preparation method of a kind of laminar titanium aluminum composite plate | |
| CN102717181B (en) | A kind of friction stir welding method | |
| CN110218912A (en) | Lithium battery 12 μm of two-sided light high performance A1235 alloy aluminium foils and its preparation process | |
| CN105839039B (en) | A kind of preparation method of the TiAl alloy sheet material of uniform formation | |
| CN102229018B (en) | Argon arc welding method suitable for self connection of TiAl-based alloy material | |
| CN103895313B (en) | The preparation method of a kind of Fe-based amorphous alloy-copper multilayer composite board | |
| CN104561696A (en) | 5083 aluminum alloy plate for high-speed rail and production method thereof | |
| CN105234177A (en) | Hot rolling method for restraining warping of asymmetrically-assembled titanium steel composite board | |
| CN109692873A (en) | A kind of thin compound layer titanium steel composite board and preparation method thereof | |
| CN103785944A (en) | High-Nb-TiAl alloy diffusion bonding method | |
| CN106425292B (en) | A kind of manufacture craft of high-performance composite plate | |
| CN102764962A (en) | Manufacturing technique of heavy piece-weight thick steel plate used for offshore wind turbine tower tube | |
| CN102764961B (en) | Technique for manufacturing 150-400mm thick carbon constructional steel plate by using continuous casting slabs | |
| CN103071912A (en) | Vertical friction stud welding method | |
| CN109693430A (en) | A kind of two-sided titanium steel composite board of thin cladding and preparation method thereof | |
| CN108043875A (en) | A kind of method for rolling rich chromium cast iron/low-carbon steel composite board | |
| CN110170656B (en) | Additive manufacturing method of functional composite honeycomb material | |
| CN113733687A (en) | Manufacturing method of high-strength honeycomb composite board | |
| CN106493309A (en) | A kind of water pump turbine casting and annealing process | |
| CN102229019A (en) | Argon arc welding method suitable for TiAl-based alloy material and titanium alloy | |
| CN105014388A (en) | Method and device for improving copper alloy surface performance | |
| CN102357742B (en) | Super-plastic and non-oxidation method of welding and splicing steel to mechanical blades | |
| CN103060754B (en) | A kind of preparation method of the titanium alloy gradient material of resistance to high temperature oxidation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |