CN105908020A - Preparation method of aluminum-tungsten composite material - Google Patents
Preparation method of aluminum-tungsten composite material Download PDFInfo
- Publication number
- CN105908020A CN105908020A CN201610323203.3A CN201610323203A CN105908020A CN 105908020 A CN105908020 A CN 105908020A CN 201610323203 A CN201610323203 A CN 201610323203A CN 105908020 A CN105908020 A CN 105908020A
- Authority
- CN
- China
- Prior art keywords
- aluminum
- preparation
- aluminium alloy
- tungsten
- semi
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—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
- C22C1/02—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
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- 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
- C22C1/12—Making non-ferrous alloys by processing in a semi-solid state, e.g. holding the alloy in the solid-liquid phase
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
Abstract
Provided is a preparation method of an aluminum-tungsten composite material. The preparation method includes the steps that an aluminum alloy raw material is placed in a smelting furnace to be smelted into molten aluminum alloy, then the molten aluminum alloy is cooled to be in the semi-solid state, and tungsten powder is added to the semi-solid molten aluminum alloy while the molten aluminum alloy is stirred; and after addition of the tungsten powder is completed, the mixture is subjected to standing, the mixture is stirred again after being heated to be at the casting temperature, casting is carried out immediately after stirring, and then the aluminum-tungsten composite material is obtained. Since the tungsten powder is added when the molten aluminum alloy is in the semi-solid state, and stirring is carried out simultaneously, the problems that tungsten powder is large in proportion and prone to precipitation can be solved, and therefore the aluminum-tungsten composite material uniform in component can be prepared advantageously. In addition, the preparation method of the aluminum-tungsten composite material is simple in process and low in production cost, and can be applied to manufacturing of products of complex structures and various dimensions.
Description
Technical field
The invention belongs to aluminum matrix composite preparing technical field, be specifically related to tungsten powder as reinforcement, prepare aluminum-composite tungsten material by semi-solid casting technology and mechanical agitation methods.
Background technology
Tungsten has high temperature resistant, high intensity, high rigidity and the feature of low thermal coefficient of expansion, is irreplaceable critical material, especially has special status in defence and military, aerospace field in various fields.But its high density and its application of non-oxidizability official post are limited, it is therefore desirable to exploitation combination property is better than the extraordinary novel light material of tungsten.
Aluminium alloy adds tungsten powder as reinforcement, it is possible to obtain a kind of extraordinary light alloy material, there is high rigidity, high thermal stability, high-wearing feature, high elastic modulus and low-density advantage.Owing to there is bigger density contrast between aluminum and tungsten, therefore use the alloy casting method of routine, hardly result in the uniform aluminum-composite tungsten material of composition.
At present; both at home and abroad about the research of aluminum-composite tungsten material; many employing heat and other static pressuring processes prepare aluminum-composite tungsten material; as the Chinese patent of Patent No. 201410010271.5 discloses a kind of partinium and preparation method thereof; the method selects tungsten powder and aluminium powder by after cold isostatic compaction; carry out that prepared by high temperature insostatic pressing (HIP) blank, sintering prepares aluminum-tungsten alloy block materials; in this technique, whole process needs to be inflated atmosphere protection; prevent Powder Oxidation; high to preparation environmental requirement; during batch mixing due to density contrast relatively greatly, powder mix homogeneously difficulty is big；It addition, the product size using heat and other static pressuring processes to prepare is little, simple shape, it is not suitable for the product that large scale structure is complicated.
Summary of the invention
Present invention aims to above-mentioned existing problems and deficiency, it is provided that a kind of technique is simple, production cost is low, can obtain the preparation method of the uniform aluminum-composite tungsten material of composition.
The technical scheme is that and be achieved in that:
The preparation method of aluminum-composite tungsten material of the present invention, is characterized in comprising the following steps:
Step 1): raw material of aluminum alloy is put in smelting furnace and be smelted into molten aluminium alloy；
Step 2): molten aluminium alloy cooling is formed as semi-solid aluminium alloy liquid, then stirring, while adding tungsten powder；
Step 3): after tungsten powder adds, stands, is warming up to cast temperature simultaneously, semi-solid aluminium alloy liquid is heated into molten aluminium alloy, is again stirred, cast immediately after stirring, obtain aluminum-composite tungsten material.
Wherein, described raw material of aluminum alloy uses 7xxx aluminium alloy.
Described molten aluminium alloy is to be cooled to less than liquidus temperature 20 DEG C-30 DEG C.
The speed of described stirring is 310-350 rev/min.
Described step 2) in mixing time be 10 minutes.
Mixing time in described step 3) is 5 minutes.
Described cast temperature is 730 DEG C-750 DEG C.
Due to the fact that employing adds tungsten powder under the semi-solid state of aluminum alloy melt, it is stirred simultaneously, tungsten powder ratio so can be overcome great, the easily problem of precipitation, thus be conducive to preparing the uniform aluminum-composite tungsten material of composition, and the technique of the present invention is simple, production cost is low, can be used for structure complicated, the manufacture of sizes product.
The present invention is further illustrated below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the micro-organization chart of ingot casting upper end prepared by the present invention.
Fig. 2 is the micro-organization chart of ingot casting lower end prepared by the present invention.
Detailed description of the invention
The preparation method of aluminum-composite tungsten material of the present invention, the raw material of employing is aluminium alloy and pure tungsten powder.First press component list dispensing, then use smelting furnace to carry out aluminium alloy smelting, and molten aluminium alloy is heated to cast temperature and is incubated a period of time；Then the temperature of molten aluminium alloy being brought down below aluminium alloy liquidus temperature 20 DEG C-30 DEG C, enables aluminum alloy to liquation and be formed as semi-solid aluminium alloy liquid, be subsequently adding tungsten powder, and be to add tungsten powder, while being stirred, mixing time is 10 minutes；After tungsten powder adds, the temperature of semi-solid aluminium alloy liquid is increased to cast temperature 730 DEG C-750 DEG C, it is i.e. that the semi-solid aluminium alloy liquid that with the addition of tungsten powder is reheated into molten aluminium alloy, again it is stirred, mixing time is 5 minutes, cast immediately after stirring, obtain aluminum-composite tungsten material.
Below by specific embodiment, the present invention is further illustrated.
Embodiment 1:
Using the present invention to prepare aluminum-composite tungsten material that W content is 5%, preparation method is as follows:
(1) dispensing: according to composition Zn:12%, Mg:3%, Cu:1.5%, Mn:0.1%, Cr:0.2%, Zr:0.2%, Ti:0.1%, W:5%, Al:77.9% carry out dispensing；
(2) melting: in smelting furnace, pure Zn, pure Mg, Al-Cu intermediate alloy, Al-Mn intermediate alloy, Al-Cr intermediate alloy, Al-Zr intermediate alloy, Al-Ti intermediate alloy and pure Al are added heat fusing, and it is superheated to 780 DEG C, molten aluminium alloy carried out refine with hexachlorethane, skims；
(3) W powder is added: molten aluminium alloy is after refine, skimming, its temperature is brought down below liquidus temperature 20-30 DEG C, i.e. 620 DEG C, it is formed as semi-solid aluminium alloy liquid, then uses stirring-head that semi solid aluminum aluminium alloy is stirred, add tungsten powder simultaneously, add complete within 10 minutes, it is to say, mixing time is 10 minutes, the rotating speed of stirring-head is 310-350 rev/min；
(4) after having added W powder, remove stirring-head, then stand, the temperature of semi-solid aluminium alloy liquid is risen to 750 DEG C simultaneously and make it re-form as molten aluminium alloy, cast immediately after being again stirring for 5 minutes, prepare the uniform aluminum of composition-tungsten composite ingot, as depicted in figs. 1 and 2.
Embodiment 2:
Using the present invention to prepare the aluminum composite tungsten material that W content is 10%, preparation method is as follows:
(1) dispensing: according to composition Zn:12%, Mg:3%, Cu:1.5%, Mn:0.1%, Cr:0.2%, Zr:0.2%, Ti:0.1%, W:10%, Al:72.9% carry out dispensing；
(2) melting: in smelting furnace, pure Zn, pure Mg, Al-Cu intermediate alloy, Al-Mn intermediate alloy, Al-Cr intermediate alloy, Al-Zr intermediate alloy, Al-Ti intermediate alloy and pure Al are added heat fusing, and it is superheated to 780 DEG C, molten aluminium alloy carried out refine with hexachlorethane, skims；
(3) W powder is added: molten aluminium alloy is after refine, skimming, its temperature is brought down below liquidus curve 20-30 DEG C, i.e. 620 DEG C, it is formed as semi-solid aluminium alloy liquid, then uses stirring-head that semi solid aluminum aluminium alloy is stirred, add tungsten powder simultaneously, add complete within 10 minutes, it is to say, mixing time is 10 minutes, the rotating speed of stirring-head is 310-350 rev/min；
(4) after having added W powder, remove stirring-head, then stand, the temperature of semi-solid aluminium alloy liquid is risen to 750 DEG C simultaneously and make it re-form as molten aluminium alloy, cast immediately after being again stirring for 5 minutes, prepare the uniform aluminum of composition-tungsten composite ingot, as depicted in figs. 1 and 2.
Embodiment 3:
Using the present invention to prepare the aluminum composite tungsten material that W content is 20%, preparation method is as follows:
(1) dispensing: according to composition Zn:12%, Mg:3%, Cu:1.5%, Mn:0.1%, Cr:0.2%, Zr:0.2%, Ti:0.1%, W:20%, Al:62.9% carry out dispensing；
(2) melting: in smelting furnace, pure Zn, pure Mg, Al-Cu intermediate alloy, Al-Mn intermediate alloy, Al-Cr intermediate alloy, Al-Zr intermediate alloy, Al-Ti intermediate alloy and pure Al are added heat fusing, and it is superheated to 780 DEG C, molten aluminium alloy carried out refine with hexachlorethane, skims；
(3) W powder is added: molten aluminium alloy is after refine, skimming, its temperature is brought down below liquidus curve 20-30 DEG C, i.e. 620 DEG C, it is formed as semi-solid aluminium alloy liquid, then uses stirring-head that semi solid aluminum aluminium alloy is stirred, add tungsten powder simultaneously, add complete within 10 minutes, it is to say, mixing time is 10 minutes, the rotating speed of stirring-head is 310-350 rev/min；
(4) after having added W powder, remove stirring-head, then stand, the temperature of semi-solid aluminium alloy liquid is risen to 750 DEG C simultaneously and make it re-form as molten aluminium alloy, cast immediately after being again stirring for 5 minutes, prepare the uniform aluminum of composition-tungsten composite ingot, as depicted in figs. 1 and 2.
The present invention is described by embodiment, but do not limit the invention, with reference to description of the invention, other changes of the disclosed embodiments, as the professional person for this area is readily apparent that, such change should belong within the scope of the claims in the present invention restriction.
Claims (7)
1. the preparation method of aluminum-composite tungsten material, it is characterised in that comprise the following steps:
Step 1): raw material of aluminum alloy is put in smelting furnace and be smelted into molten aluminium alloy；
Step 2): molten aluminium alloy cooling is formed as semi-solid aluminium alloy liquid, then stirring, while adding tungsten powder；
Step 3): after tungsten powder adds, stands, is warming up to cast temperature simultaneously, semi-solid aluminium alloy liquid is heated into molten aluminium alloy, is again stirred, cast immediately after stirring, obtain aluminum-composite tungsten material.
The preparation method of aluminum-composite tungsten material the most according to claim 1, it is characterised in that: described raw material of aluminum alloy uses 7xxx aluminium alloy.
The preparation method of aluminum-composite tungsten material the most according to claim 1, it is characterised in that: described molten aluminium alloy is to be cooled to less than liquidus temperature 20 DEG C-30 DEG C.
The preparation method of aluminum-composite tungsten material the most according to claim 1, it is characterised in that: the speed of described stirring is 310-350 rev/min.
The preparation method of aluminum-composite tungsten material the most according to claim 1, it is characterised in that: described step 2) in mixing time be 10 minutes.
The preparation method of aluminum-composite tungsten material the most according to claim 1, it is characterised in that: the mixing time in described step 3) is 5 minutes.
The preparation method of aluminum-composite tungsten material the most according to claim 1, it is characterised in that: described cast temperature is 730 DEG C-750 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610323203.3A CN105908020B (en) | 2016-05-17 | 2016-05-17 | A kind of preparation method of aluminium composite tungsten material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610323203.3A CN105908020B (en) | 2016-05-17 | 2016-05-17 | A kind of preparation method of aluminium composite tungsten material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105908020A true CN105908020A (en) | 2016-08-31 |
| CN105908020B CN105908020B (en) | 2017-09-26 |
Family
ID=56749183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610323203.3A Active CN105908020B (en) | 2016-05-17 | 2016-05-17 | A kind of preparation method of aluminium composite tungsten material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105908020B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107881353A (en) * | 2016-09-29 | 2018-04-06 | 宁波江丰电子材料股份有限公司 | The forming method of aluminum bronze tungsten alloy |
| CN108103326A (en) * | 2016-11-24 | 2018-06-01 | 宁波江丰电子材料股份有限公司 | The forming method of aluminium alloy |
| CN109082549A (en) * | 2018-10-26 | 2018-12-25 | 北京理工大学 | A kind of preparation method of easy reacting aluminum/tungsten active material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1381604A (en) * | 2001-04-13 | 2002-11-27 | 中国科学院金属研究所 | Method for adding particles to slurry in preparing particle reinforced Al-base composition by liquid state method |
| JP2008001954A (en) * | 2006-06-23 | 2008-01-10 | Toyota Central Res & Dev Lab Inc | Aluminum alloy for use in semisolid casting and manufacturing method of aluminum alloy casting |
| CN102703768A (en) * | 2012-03-19 | 2012-10-03 | 燕山大学 | Aluminum-tungsten composite and production method thereof |
| CN103773983A (en) * | 2014-01-09 | 2014-05-07 | 安泰科技股份有限公司 | Tungsten-aluminum alloy and preparation method for same |
| US20150376745A1 (en) * | 2013-02-11 | 2015-12-31 | National Research Council Of Canada | Metal matrix composite and method of forming |
| CN105401001A (en) * | 2015-11-13 | 2016-03-16 | 北京有色金属研究总院 | Process method for preparing tungsten particle reinforced aluminum matrix composite material through powder metallurgic method |
-
2016
- 2016-05-17 CN CN201610323203.3A patent/CN105908020B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1381604A (en) * | 2001-04-13 | 2002-11-27 | 中国科学院金属研究所 | Method for adding particles to slurry in preparing particle reinforced Al-base composition by liquid state method |
| JP2008001954A (en) * | 2006-06-23 | 2008-01-10 | Toyota Central Res & Dev Lab Inc | Aluminum alloy for use in semisolid casting and manufacturing method of aluminum alloy casting |
| CN102703768A (en) * | 2012-03-19 | 2012-10-03 | 燕山大学 | Aluminum-tungsten composite and production method thereof |
| US20150376745A1 (en) * | 2013-02-11 | 2015-12-31 | National Research Council Of Canada | Metal matrix composite and method of forming |
| CN103773983A (en) * | 2014-01-09 | 2014-05-07 | 安泰科技股份有限公司 | Tungsten-aluminum alloy and preparation method for same |
| CN105401001A (en) * | 2015-11-13 | 2016-03-16 | 北京有色金属研究总院 | Process method for preparing tungsten particle reinforced aluminum matrix composite material through powder metallurgic method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107881353A (en) * | 2016-09-29 | 2018-04-06 | 宁波江丰电子材料股份有限公司 | The forming method of aluminum bronze tungsten alloy |
| CN108103326A (en) * | 2016-11-24 | 2018-06-01 | 宁波江丰电子材料股份有限公司 | The forming method of aluminium alloy |
| CN109082549A (en) * | 2018-10-26 | 2018-12-25 | 北京理工大学 | A kind of preparation method of easy reacting aluminum/tungsten active material |
| CN109082549B (en) * | 2018-10-26 | 2020-08-11 | 北京理工大学 | Preparation method of easy-reaction aluminum/tungsten active material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105908020B (en) | 2017-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102230118B (en) | Magnesium alloy of high intensity and high yield ratio and preparation method thereof | |
| CN104946940B (en) | A kind of pack alloy and preparation method thereof | |
| CN105132772B (en) | Low-cost non-rare-earth type high-strength magnesium alloy and preparing method thereof | |
| CN104911379B (en) | A kind of preparation method of high-performance metal based composites | |
| CN101914709B (en) | Preparation method of high-toughness casting aluminum alloy | |
| CN104004949A (en) | Method for preparing high strength magnesium-lithium alloy | |
| CN108396204A (en) | Hypoeutectic aluminum-silicon alloy casting and process method for improving performance thereof | |
| CN101463440A (en) | Aluminum based composite material for piston and preparation thereof | |
| CN106435299A (en) | SiC particle reinforced aluminium-based composite and preparation method thereof | |
| CN105908020A (en) | Preparation method of aluminum-tungsten composite material | |
| CN103381472A (en) | Preparation method for hypereutectic aluminum-silicon alloy semi-solid state sizing agent or blank | |
| CN102554192A (en) | Manufacturing method of highly-conductive and heat-resisting electrode cross beam component | |
| CN106591617A (en) | Manganese additive for aluminum alloy and preparation method of manganese additive | |
| CN106591637A (en) | Aluminum-niobium-boron intermediate alloy and preparation method thereof | |
| CN105936990A (en) | Preparation process of aluminum alloy casting used on automobile | |
| CN107893181B (en) | Magnesium alloy ingot | |
| CN106048332A (en) | Aluminum alloy material used for aerospace thin wall castings, and preparation method of material | |
| CN106048335A (en) | Aluminum alloy material used for aerospace large heavy castings, and preparation method of material | |
| CN105734315B (en) | Cast aluminum alloy grain refiner and preparation method thereof | |
| CN108754277A (en) | A kind of ferro-cobalt nickel vanadium zirconium high-entropy alloy and preparation method thereof | |
| CN101230432A (en) | Method for preparing high-strength heat-resistant ferro-aluminium alloy parts | |
| CN110029251A (en) | A kind of fire resistant aluminum alloy material and preparation method thereof | |
| CN105986136A (en) | High-performance aluminum alloy added with rare earth element and preparation method of high-performance aluminum alloy | |
| CN104894402A (en) | Refining method for aluminum alloy | |
| CN104894409A (en) | Refining method for aluminum alloy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee after: Institute of materials and processing, Guangdong Academy of Sciences Address before: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee before: Guangdong Institute Of Materials And Processing |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221116 Address after: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee after: Institute of new materials, Guangdong Academy of Sciences Address before: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee before: Institute of materials and processing, Guangdong Academy of Sciences |
|
| TR01 | Transfer of patent right |