CN1629329A - An Al-Mo-V-Fe intermediate alloy and process for preparing same - Google Patents
An Al-Mo-V-Fe intermediate alloy and process for preparing same Download PDFInfo
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- CN1629329A CN1629329A CN 200310119080 CN200310119080A CN1629329A CN 1629329 A CN1629329 A CN 1629329A CN 200310119080 CN200310119080 CN 200310119080 CN 200310119080 A CN200310119080 A CN 200310119080A CN 1629329 A CN1629329 A CN 1629329A
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Abstract
The invention relates to the preparation of titanium alloy, more specifically an Al-Mo-V-Fe intermediate alloy for titanium alloy preparation and process for preparing the same, wherein the constituents (by weight percent) of the alloy include, Al 5.5-17.2%, V 35-39%, Fe 3.8-5.5%, and balancing Mo. The preparing process comprises, employing furnace outside ignition smelting method, operating according to routine procedures, the raw material drying temperature being 70-80 deg. C, the drying time no less than 24 hours, calculated based on 1kg of MoO3, the charged mixture includes, V2O3 0.879-0.979kg, Fe 0.047-0.069%, Al 0.69-1.457kg, CaF2 0.05-0.4kg, KCLO3 0.14-0.20%, the raw material shoving temperature being 30-60 deg. C. The advantages of the invention include facilitated preparation of titanium alloy, low making cost, homogeneous alloying, good oxidation resistance, easy storing, transport and fragmenting.
Description
Technical field
The present invention relates to the preparation of titanium alloy, specifically a kind of Al-Mo-V-Fe (molybdenum base) master alloy that is used for the titanium alloy preparation and preparation method thereof.
Background technology
Along with the continuous development of titanium alloy, more and more need master alloy directly to add and carry out melting in the titanium, avoided the simple loaded down with trivial details property that adds metal simple-substance respectively, and molybdenum base master alloy fusing point is lower than fusing point the highest in each metal simple-substance; As the AlMoVFe alloy melting point is 2086 ℃, and the Mo fusing point is 2610 ℃, makes the preparation fusion process of titanium alloy stable, has avoided because the metal simple-substance fusing point is inconsistent, and the melting electric current that is applied is fluctuated, does not allow manageable phenomenon.Existing a kind of aluminium titanium rare earth compound type master alloy (number of patent application 94112628.5) with titanium alloy melting, its antioxidant property is better, but its cost is higher, and adaptive surface narrower (being used for the melting of simple rare-earth type titanium alloy) can not satisfy modern titanium alloy and produce diversified requirement.
Summary of the invention
The object of the present invention is to provide a kind of cost is low, be adapted to modern titanium alloy production requirement Al-Mo-V-Fe master alloy and preparation (smelting) method thereof.
For achieving the above object, the technical solution used in the present invention is:
A kind of Al-Mo-V-Fe master alloy, alloy composition is by weight percentage, and Al 5.5～17.2%, and V 35～39%, and Fe 3.8～5.5%, and Mo is a surplus.
Preferable alloy composition is, Al 11.35%, and V 37%, and Fe 4.65%, and O in the residual element＜0.1%, Mo are surplus.
The preparation method of Al-Mo-V-Fe master alloy is: adopt the stove smelting method of lighting a fire outward, and step operation routinely, ingredients by weight is formed with 1kg MoO
3Meter: V
2O
50.879～0.979kg, Fe0.047～0.069kg, Al 0.69～1.457kg, CaF
20.05～0.40kg, KclO
30.14～0.20kg; The raw material charging temperature is 30～60 ℃ (being preferably 35～45 ℃), reacting balance, and alloy forms; The raw material stoving temperature is generally 70～80 ℃, and drying time is no less than 24 hours.
The present invention compared with prior art has following beneficial effect:
1. be convenient to the preparation of titanium alloy.The aluminium base master alloy fusing point of the present invention is than fusing point the highest in each metal simple-substance low (as the AlMoVFe alloy melting point is 2086 ℃, and the Mo fusing point is 2610 ℃); Adopt molybdenum base system row master alloy of the present invention to prepare titanium alloy, can add with the form of alloy bag in the titanium sponge, easy to control with vacuum consumable electrode arc furnace smelting titanium alloy electric current, electrical loss is little, and cost is low, has made things convenient for the preparation of titanium alloy.
2. cost is low.With the metal simple-substance is the master alloy of raw material production, production process complexity, production cost height; The course of processing of the present invention is simple, and not needing specific installation the present invention is raw material with the metal oxide, and production cost is low, easy to operate, the smelting process reacting balance, and alloy forms.
3. alloying is even.The master alloy that the present invention produces because of its alloying is even, in the form adding titanium sponge with the alloy bag, makes titan alloy casting ingot be not easy to take place the rare partially phenomenon of element.
4. antioxidant property is good, is easy to storage and transportation.Because metal simple-substance is easily oxidation in air, thereby directly adds in the titanium sponge with metal simple-substance, can make metallurgical imperfections such as being easy to generate oxide inclusion in the titan alloy casting ingot; And master alloy antioxidant property of the present invention is good, is difficult for oxidation in air, and Polywoven Bag and inner lining plastic bag packing get final product, and are easy to storage and transportation.
5. easily broken.The present invention is to be the metal mold compound of matrix with the molybdenum, enbrittles, broken up characteristics, has shortened the production process of titanium alloy, has reduced production cost.
Embodiment
The present invention is on the basis of aluminium molybdenum, suitable adding major ingredient V, Fe element, and by existing equipment, metallurgical technology just can obtain novel master alloy, below by embodiment in detail the present invention is described in detail.
Embodiment 1
Adopt the stove smelting method of lighting a fire outward: step is carried out routinely, the raw material drying, builds stove, by described weight percent batching, evenly batch mixing, shove charge, smelting, cool off, open stove, weigh, finishing, fragmentation, magnetic separation, sampling analysis, packing.
Concrete preparation process is as follows:
1. raw material stoving: with raw material, build slag, batching slag drying time 24 hours (can be 24～72 hours) in the drying shed of 75 ℃ of temperature (can be 75 ± 5 ℃);
2. take by weighing raw material: during batching be catalyzer (add weight be raw material total amount 2～10%) with Potcrate
MoO
3?V
2O
5????Fe????Al????CaF
2??KclO
3
1kg????0.931kg?????0.058kg?1.043kg?0.286kg?0.167kg
3. batch mixing: material is packed in the V-type blender, and it is even to be mixed, number of times 6 times;
4. cooling: mixed raw materials is cooled to 42 ℃ (can be 35～45 ℃);
5. shove charge: will cool off good raw material and pack in the smelting furnace (graphite liner stove);
6. igniting: put into smelting furnace with the magnesium chips of lighting, igniting begins reaction;
7. record: recording reacting time is 18 seconds; The smelting process reaction is fierce, spatters spark in the reaction process always;
8. cooling: 24 hours (being preferably more than 48 hours) of cooling in the air is preferably the stove internal cooling;
9. open stove: from smelting furnace, take out alloy pig;
10. finishing: grind off slag blanket and oxide film with sharpening machine;
11. broken, magnetic separation: (be generally 0.25～6.0mm), magnetic separation then, hand picking remove impurity such as de-iron to be crushed to φ 6mm granularity with jaw crusher;
12. sample examination analysis: the result is through assay (weight): Al 11.35%, and Mo 46.54%, and V 37.07%, and Fe 4.65%, and O 0.023%;
13, the packing: product through chemically examine qualified after, package in the pail pack of packing into.
The alloy application performance: above-mentioned alloy adds can increase the performance that α and β, alpha+beta are had mutually in the titanium; Smelt the Al-Mo-V-Fe alloy phase ratio that adopts usually with existing titanium alloy, alloy of the present invention more meets the weight percent of each element requirement in the alloy, and alloying is more even, and impurity O content is low.
Embodiment 2～5. press the operation of embodiment 1 method, difference from Example 1 sees Table 1.
Table 1 AlMoVFe alloy reaction system
| Production process embodiment | Take by weighing raw material (kg) | The material temperature | Reaction condition | Reaction times | Analytical results (%) surplus is an impurity |
| Embodiment 1 | ?MoO 3??V 2O 5???Fe????Al????CaF 2??KclO 3?1???????0.931????0.058?1.043?0.286??0.167 | ?42℃ | Reaction is fierce, swashs and spatters once | 18″ | ?Al??????Mo??????V??????Fe????O ?11.35???46.54???37.07??4.65??0.023 |
| Embodiment 2 | ?MoO 3??V 2O 5???Fe????Al????CaF 2??KclO 3?1???????0.931????0.058?0.69??0.20???0.14 | ?41℃ | Reaction is slightly fierce, spatters a spark | 20″ | ?Al??????Mo??????V??????Fe????O ?6.95????48.84???38.94??4.88??0.028 |
| Embodiment 3 | ?MoO 3??V 2O 5???Fe????Al????CaF 2??KclO 3?1???????0.931????0.058?1.457?0.35???0.20 | ?39℃ | Reaction is slightly steady, and flame is higher | 23″ | ?Al??????Mo??????V??????Fe????O ?15.85???44.19???35.16??4.41??0.034 |
| Embodiment 4 | ?MoO 3??V 2O 5???Fe????Al????CaF 2??KclO 3?1???????0.979????0.058?1.043?0.25???0.15 | ?40℃ | Reaction is fierce | 21″ | ?Al??????Mo??????V??????Fe????O ?10.99???45.11???39.00??4.50??0.019 |
| Embodiment 5 | ?MoO 3??V 2O 5???Fe????Al????CaF 2??KclO 3?1???????0.931????0.069?1.043?0.28???0.16 | ?41℃ | Reacting balance, flame is higher | 24″ | ?Al??????Mo??????V??????Fe????O ?11.25???46.12???30.73??5.5???0.042 |
Claims (6)
1. Al-Mo-V-Fe master alloy, it is characterized in that: alloy composition is by weight percentage, and Al 5.5～17.2%, and V 35～39%, and Fe 3.8～5.5%, and Mo is a surplus.
2. according to the described Al-Mo-V-Fe master alloy of claim 1, it is characterized in that: alloy composition is by weight percentage, and Al 11.35%, and V 37%, and Fe 4.65%, and O in the residual element＜0.1%, Mo are surplus.
3. the preparation method of the described Al-Mo-V-Fe master alloy of claim 1 is characterized in that: adopt the stove smelting method of lighting a fire outward, and step operation routinely, ingredients by weight is formed with 1kg MoO
3Meter: V
2O
50.879～0.979kg, Fe 0.047～0.069kg, Al 0.69～1.457kg, CaF
20.05～0.40kg, KclO
30.14～0.20kg; The raw material charging temperature is 30～60 ℃.
4. according to the preparation method of the described Al-Mo-V-Fe master alloy of claim 3, it is characterized in that: described raw material charging temperature is 35～45 ℃.
5. according to the preparation method of the described Al-Mo-V-Fe master alloy of claim 3, it is characterized in that: the raw material stoving temperature is 70～80 ℃, and drying time is no less than 24 hours.
6. according to the preparation method of the described Al-Mo-V-Fe master alloy of claim 5, it is characterized in that: drying time is no less than 48 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310119080 CN1288261C (en) | 2003-12-15 | 2003-12-15 | An Al-Mo-V-Fe intermediate alloy and process for preparing same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310119080 CN1288261C (en) | 2003-12-15 | 2003-12-15 | An Al-Mo-V-Fe intermediate alloy and process for preparing same |
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| Publication Number | Publication Date |
|---|---|
| CN1629329A true CN1629329A (en) | 2005-06-22 |
| CN1288261C CN1288261C (en) | 2006-12-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433489A (en) * | 2011-12-15 | 2012-05-02 | 承德天大钒业有限责任公司 | Aluminium-vanadium-tin-copper-iron intermediate alloy and preparation method thereof |
| CN108588454A (en) * | 2018-06-19 | 2018-09-28 | 河北四通新型金属材料股份有限公司 | A kind of vanadium aluminium molybdenum ferro-niobium intermediate alloy and preparation method thereof |
| CN111945049A (en) * | 2020-08-29 | 2020-11-17 | 承德天大钒业有限责任公司 | Aluminum-molybdenum intermediate alloy and preparation method thereof |
-
2003
- 2003-12-15 CN CN 200310119080 patent/CN1288261C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433489A (en) * | 2011-12-15 | 2012-05-02 | 承德天大钒业有限责任公司 | Aluminium-vanadium-tin-copper-iron intermediate alloy and preparation method thereof |
| CN108588454A (en) * | 2018-06-19 | 2018-09-28 | 河北四通新型金属材料股份有限公司 | A kind of vanadium aluminium molybdenum ferro-niobium intermediate alloy and preparation method thereof |
| CN111945049A (en) * | 2020-08-29 | 2020-11-17 | 承德天大钒业有限责任公司 | Aluminum-molybdenum intermediate alloy and preparation method thereof |
| CN111945049B (en) * | 2020-08-29 | 2021-07-30 | 承德天大钒业有限责任公司 | Aluminum-molybdenum intermediate alloy and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN1288261C (en) | 2006-12-06 |
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Address after: 118305 Donggang Dongfang hi tech metal material Co., Ltd., Donggang City, Liaoning Province Patentee after: Zhong Xin hi tech material Limited by Share Ltd Address before: 118305 Donggang Dongfang hi tech metal material Co., Ltd., Donggang City, Liaoning Province Patentee before: Donggang City Dongfang High-New Metal Materals Co., Ltd. |
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