CN110760732A - Production method of aluminum-vanadium-molybdenum intermediate alloy for TB3 titanium alloy - Google Patents
Production method of aluminum-vanadium-molybdenum intermediate alloy for TB3 titanium alloy Download PDFInfo
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- CN110760732A CN110760732A CN201910827801.8A CN201910827801A CN110760732A CN 110760732 A CN110760732 A CN 110760732A CN 201910827801 A CN201910827801 A CN 201910827801A CN 110760732 A CN110760732 A CN 110760732A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
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Abstract
The invention provides a method for producing an aluminum-vanadium-molybdenum intermediate alloy for a TB3 titanium alloy, which comprises the following steps: placing the main raw material and the auxiliary raw material in a drying chamber for drying, and keeping the temperature of the drying chamber at 35 ℃ for 24 hours; the main raw material and the auxiliary raw material are mixed according to the following ratio: 0.8-1.2kg of vanadium pentoxide; 0.683-0.842kg of molybdenum dioxide; 0.796-0.937kg of aluminum powder; 0.10-0.14kg of fluorite powder; 0.02-0.04kg of crushed alloy; after proportioning, adding the mixture into a mixer for uniform mixing to obtain a mixed material, wherein the mixing time is more than or equal to 5 minutes; the mixed material is put into a prefabricated graphite crucible, and then an ignition agent is used for igniting the surface of the mixed material; and opening the graphite crucible after the combustion is finished and the cooling is carried out for 24 hours to obtain the rough ingot of the aluminum-vanadium-molybdenum intermediate alloy. Compared with the related technology, the aluminum-vanadium-molybdenum intermediate alloy produced by the production method is directly added into the TB3 ingot casting smelting, so that the process for preparing the TB3 titanium alloy is simplified, the production period is shortened, the cost is reduced, and the prepared TB8 titanium alloy has good stability and high yield.
Description
Technical Field
The invention relates to the field of titanium alloy materials, in particular to a production method of an aluminum-vanadium-molybdenum intermediate alloy for a TB3 titanium alloy.
Background
The TB3 titanium alloy material is the titanium alloy material with higher strength at present in China, and the fastener used for manufacturing is the basis and the direction of the development of the high-performance fastener in China.
When TB3 ingot casting is smelted in the related art, the smelting is completed by adding binary alloy and simple substance elements, and the following are required to be added: the ingot casting smelting is carried out on pure molybdenum powder or titanium molybdenum, aluminum beans, titanium niobium and aluminum silicon, the process is complicated, the variety of added alloys is various, the addition error is easy to occur, the smelting process is complex, the smelting can be completed only by 5 times of smelting in a vacuum consumable electrode furnace, the processing cost is high, and the processing period is long. And the melting point of the pure molybdenum powder is high (about 2600 degrees), the specific gravity of the non-magnetic material is high, the melting point difference between various binary alloys and elemental element metals is large, the segregation phenomenon is easy to occur, and the qualified rate of finished products is low.
Therefore, it is necessary to provide a new method for producing an aluminum-vanadium-molybdenum master alloy for TB3 titanium alloy to solve the above problems.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method for producing an aluminum-vanadium-molybdenum intermediate alloy for a TB3 titanium alloy, which is used for simplifying the production period and reducing the cost in the preparation of a TB3 cast ingot, and the prepared TB3 cast ingot has good stability and high yield.
In order to solve the technical problem, the invention provides a method for producing an aluminum-vanadium-molybdenum intermediate alloy for a TB3 titanium alloy, which comprises the following steps:
step S1, placing the main raw material and the auxiliary raw material in a drying chamber for drying, keeping the temperature of the drying chamber at 35 ℃, and keeping the drying time at 24 hours; the main raw materials comprise vanadium pentoxide, molybdenum dioxide and aluminum powder, and the auxiliary raw materials comprise fluorite powder and crushed alloy.
Step S2, mixing the main raw material and the auxiliary raw material according to the following ratio: 0.8-1.2kg of vanadium pentoxide; 0.683-0.842kg of molybdenum dioxide; 0.796-0.937kg of aluminum powder; 0.10-0.14kg of fluorite powder; 0.02-0.04kg of crushed alloy; after proportioning, adding the mixture into a mixer for uniform mixing to obtain a mixed material, wherein the mixing time is more than or equal to 5 minutes.
And step S3, filling the mixed material into a prefabricated graphite crucible, and then igniting the mixed material on the surface by using an ignition agent.
And step S4, opening the graphite crucible after the combustion is finished and the cooling is carried out for 24 hours, and obtaining the blank ingot of the aluminum-vanadium-molybdenum intermediate alloy.
Preferably, the method further comprises step S5: and taking out the rough ingot, and carrying out polishing, resting and crushing processes to obtain the aluminum-vanadium-molybdenum intermediate alloy.
Preferably, the step S3 further includes, after the mixed material is loaded into a prefabricated graphite crucible, flattening the surface of the mixed material.
Preferably, the aluminum-vanadium-molybdenum intermediate alloy comprises the following components in percentage by mass: v, 37-40%; 47-50% of Mo; al, and the balance.
Compared with the prior art, in the production method of the aluminum-vanadium-molybdenum intermediate alloy for the TB3 titanium alloy, the aluminum-vanadium-molybdenum intermediate alloy is directly added when the TB3 cast ingot is smelted, and a trace amount of aluminum beans are added for smelting, so that the complexity of a preparation process caused by adding various alloys in the whole smelting process can be avoided, the process is simplified, and the preparation period is shortened; the aluminum-vanadium-molybdenum intermediate alloy is directly added, so that the problems of temperature difference among various alloys and segregation caused by adding different alloys for multiple times are solved, and the prepared TB3 titanium alloy has stable performance and high yield; meanwhile, the smelting processing period is short and the production cost is reduced due to the reduction of the addition of alloy types.
Detailed Description
The present invention will be further described with reference to the following embodiments.
The invention provides a production method of an aluminum-vanadium-molybdenum intermediate alloy for a TB3 titanium alloy, wherein the aluminum-vanadium-molybdenum intermediate alloy comprises the following components in percentage by mass: vanadium (V), 37-40%; 47-50% of molybdenum (Mo); aluminum (Al), balance.
The method comprises the following steps:
step S1, placing the main raw material and the auxiliary raw material in a drying chamber for drying, keeping the temperature of the drying chamber at 35 ℃, and keeping the drying time at 24 hours; the main raw materials comprise vanadium pentoxide, molybdenum dioxide and aluminum powder, and the auxiliary raw materials comprise fluorite powder and crushed alloy.
Step S2, mixing the main raw material and the auxiliary raw material according to the following ratio: 0.8-1.2kg of vanadium pentoxide; 0.683-0.842kg of molybdenum dioxide; 0.796-0.937kg of aluminum powder; 0.10-0.14kg of fluorite powder; 0.02-0.04kg of crushed alloy; after proportioning, adding the mixture into a mixer for uniform mixing to obtain a mixed material, wherein the mixing time is more than or equal to 5 minutes.
And step S3, filling the mixed material into a prefabricated graphite crucible, and then igniting the mixed material on the surface by using an ignition agent.
In the step, preferably, after the mixed material is filled into a prefabricated graphite crucible, the surface of the mixed material is subjected to leveling treatment and then ignited, so that the mixed material is uniformly heated, and the reliability is good.
And step S4, opening the graphite crucible after the combustion is finished and the cooling is carried out for 24 hours, and obtaining the blank ingot of the aluminum-vanadium-molybdenum intermediate alloy.
And step S5, taking out the rough ingot, and carrying out polishing, reshaping and crushing process treatment to obtain the aluminum-vanadium-molybdenum intermediate alloy.
It should be noted that, according to the proportion of each element in the prepared aluminum-vanadium-molybdenum intermediate alloy, the proportion of the raw material and the auxiliary raw material can be adjusted according to the range provided by the invention, so that the proportion of each element in the prepared aluminum-vanadium-molybdenum intermediate alloy meets the requirement.
Compared with the prior art, in the production method of the aluminum-vanadium-molybdenum intermediate alloy for the TB3 titanium alloy, the aluminum-vanadium-molybdenum intermediate alloy is directly added when the TB3 cast ingot is smelted, and a trace amount of aluminum beans are added for smelting, so that the complexity of a preparation process caused by adding various alloys in the whole smelting process can be avoided, the process is simplified, and the preparation period is shortened; the aluminum-vanadium-molybdenum intermediate alloy is directly added, so that the problems of temperature difference among various alloys and segregation caused by adding different alloys for multiple times are solved, and the prepared TB3 titanium alloy has stable performance and high yield; meanwhile, the smelting processing period is short and the production cost is reduced due to the reduction of the addition of alloy types.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (4)
1. A method for producing an aluminum-vanadium-molybdenum master alloy for TB3 titanium alloy, the method comprising the steps of:
step S1, placing the main raw material and the auxiliary raw material in a drying chamber for drying, keeping the temperature of the drying chamber at 35 ℃, and keeping the drying time at 24 hours; the main raw materials comprise vanadium pentoxide, molybdenum dioxide and aluminum powder, and the auxiliary raw materials comprise fluorite powder and crushed alloy;
step S2, mixing the main raw material and the auxiliary raw material according to the following ratio: 0.8-1.2kg of vanadium pentoxide; 0.683-0.842kg of molybdenum dioxide; 0.796-0.937kg of aluminum powder; 0.10-0.14kg of fluorite powder; 0.02-0.04kg of crushed alloy; after proportioning, adding the mixture into a mixer for uniform mixing to obtain a mixed material, wherein the mixing time is more than or equal to 5 minutes;
s3, putting the mixed material into a prefabricated graphite crucible, and then igniting the mixed material on the surface by using an ignition agent;
and step S4, opening the graphite crucible after the combustion is finished and the cooling is carried out for 24 hours, and obtaining the blank ingot of the aluminum-vanadium-molybdenum intermediate alloy.
2. The method for producing an Al-V-Mo master alloy for TB3 titanium alloy according to claim 1, further comprising the step S5: and taking out the rough ingot, and carrying out polishing, resting and crushing processes to obtain the aluminum-vanadium-molybdenum intermediate alloy.
3. The method for producing the Al-V-Mo master alloy for the TB3 titanium alloy according to claim 1, wherein the step S3 further comprises flattening the surface of the mixture after the mixture is filled in a prefabricated graphite crucible.
4. The production method of the aluminum-vanadium-molybdenum master alloy for the TB3 titanium alloy according to claim 1, wherein the aluminum-vanadium-molybdenum master alloy consists of the following components in percentage by mass: v, 37-40%; 47-50% of Mo; al, and the balance.
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| CN201910827801.8A CN110760732A (en) | 2019-09-03 | 2019-09-03 | Production method of aluminum-vanadium-molybdenum intermediate alloy for TB3 titanium alloy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116005043A (en) * | 2023-01-30 | 2023-04-25 | 承德天大钒业有限责任公司 | Aluminum-molybdenum-vanadium intermediate alloy and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195887A (en) * | 2006-12-08 | 2008-06-11 | 张忠世 | Intermediate alloy of aluminum, vanadium and molybdenum, and method for producing the same |
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- 2019-09-03 CN CN201910827801.8A patent/CN110760732A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195887A (en) * | 2006-12-08 | 2008-06-11 | 张忠世 | Intermediate alloy of aluminum, vanadium and molybdenum, and method for producing the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116005043A (en) * | 2023-01-30 | 2023-04-25 | 承德天大钒业有限责任公司 | Aluminum-molybdenum-vanadium intermediate alloy and preparation method thereof |
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