阅读说明：本技术 用于tb3钛合金的铝钒钼中间合金的生产方法 (Production method of aluminum-vanadium-molybdenum intermediate alloy for TB3 titanium alloy ) 是由 苏舒祥 李佳伟 杨飞 于 2019-09-03 设计创作，主要内容包括：本发明提供一种用于TB3钛合金的铝钒钼中间合金的生产方法,该方法包括如下步骤：将主原料及辅助原料放于烘干室烘干,保持烘干室温度35℃,烘干时间为24小时；将所述主原料及所述辅助原料按如下配比：五氧化二钒,0.8-1.2kg；二氧化钼,0.683-0.842kg；铝粉,0.796-0.937kg；萤石粉,0.10-0.14kg；碎合金0.02-0.04kg；配比后加入至混料机里均匀混合得到混料,混合时间大于或等于5分钟；将混料装入预制的石墨坩埚内,再用引火剂在混料表面引燃；待燃烧完并冷却24小时以后打开石墨坩埚,得到铝钒钼中间合金的毛锭。与相关技术相比,本发明生产方法生产的铝钒钼中间合金直接加入至TB3铸锭熔炼中,使得制备TB3钛合金的工艺简化,缩短生产周期和降低成本,且制备的TB8钛合金稳定性好,成品率高。(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.)

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.

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.

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.