阅读说明：本技术 一种运动器材用低间隙高钒钛合金的制造方法 (Manufacturing method of low-clearance high-vanadium titanium alloy for sports equipment ) 是由 夏长安 于 2021-07-09 设计创作，主要内容包括：本发明提供一种运动器材用低间隙高钒钛合金的制造方法,包括钛合金母合金,所述钛合金母合金加纯钛,补充真空熔炼烧损的元素,进一步调整组织和成分后制得低间隙高钒钛合金,本发明满足高塑性和高韧性,有非常好的冷热加工性能,可以满足高强度和高弹性的使用性能。(The invention provides a manufacturing method of a low-clearance high-vanadium titanium alloy for sports equipment, which comprises a titanium alloy master alloy, wherein the titanium alloy master alloy is added with pure titanium to supplement elements of vacuum melting and burning loss, and the low-clearance high-vanadium titanium alloy is prepared after further adjusting the structure and the components.)

1. A manufacturing method of a low-clearance high-vanadium titanium alloy for sports equipment comprises a titanium alloy master alloy, and is characterized in that: the titanium alloy master alloy is added with pure titanium, elements burnt by vacuum melting are supplemented, and the low-clearance high-vanadium titanium alloy is prepared after the structure and the components are further adjusted.

2. The method for manufacturing a low-clearance high-vanadium-titanium alloy for sports equipment according to claim 1, wherein the method comprises the following steps: the titanium alloy master alloy comprises the following raw materials: the self-made vanadium furnace intermediate alloy produced by the aluminothermic method, super 0-grade sponge titanium, self-made titanium-tin alloy and pure zirconium.

3. The method for manufacturing a low-clearance high-vanadium-titanium alloy for sports equipment according to claim 2, wherein the method comprises the following steps: v85-89% and Al 11-15% of the self-made vanadium furnace intermediate alloy produced by the aluminothermic method; ti in the super 0-grade titanium sponge is more than 99.90 percent; sn in the self-made titanium-tin alloy is more than 30 percent; zr in pure zirconium is more than 99.5 percent.

4. The method for manufacturing a low-clearance high-vanadium-titanium alloy for sports equipment according to claim 2, wherein the method comprises the following steps: the titanium alloy master alloy is cast and smelted by adopting the following sequential steps:

step one, placing a self-made vanadium furnace intermediate alloy, super-0-grade sponge titanium, a self-made titanium-tin alloy and pure zirconium produced by a thermit method into an induction area of a water-cooled copper crucible vacuum induction furnace in a layering manner, and then closing a furnace door;

secondly, pumping air out of the water-cooled copper crucible vacuum induction furnace;

step three, starting a power supply of the water-cooled copper crucible vacuum induction furnace, and refining after smelting in the water-cooled copper crucible vacuum induction furnace;

step four, inputting the raw materials refined in the step three into an ingot casting mold to complete ingot casting;

step five, breaking vacuum after furnace cooling;

and step six, taking out the produced titanium alloy master alloy cast ingot, and storing for later use after the analysis and detection are qualified.

5. The method for manufacturing a low-clearance high-vanadium-titanium alloy for sports equipment according to claim 4, wherein the method comprises the following steps: the chemical components of the titanium alloy master alloy cast ingot are as follows: v40-45%, Al 6-10%, Sn 2-3%, Zr 0.2-0.3%, O less than 0.06%, N less than 0.003%, C less than 0.005%, and H less than 0.001%.

6. The method for manufacturing a low-clearance high-vanadium-titanium alloy for sports equipment according to claim 4, wherein the method comprises the following steps: the low-clearance high-vanadium titanium alloy is produced by adopting the following steps in sequence:

step one, uniformly distributing the titanium alloy master alloy cast ingot and TA0 bars of ultra-low gap elements in an axial direction and a radial direction in a self-made vacuum welding box;

step two, assembling and welding a vacuum consumable electrode of the primary cast ingot by using a plasma welding method;

fixing the assembled and welded consumable electrode on a vacuum consumable electrode furnace, and carrying out vacuum consumable first ingot casting and casting according to a formulated smelting process;

step four, after the first smelting ingot casting is finished, putting the first smelting ingot casting into a vacuum welding box for assembling and welding a vacuum consumable electrode for secondary smelting;

step five, performing secondary vacuum consumable electrode fusion casting on the assembled and welded secondary vacuum consumable electrode according to the determined secondary vacuum;

step six, breaking vacuum and discharging after the furnace is cooled, and sampling and analyzing the second smelting cast ingot;

and seventhly, removing the peel of the head and the tail of the cast ingot, performing final inspection, and warehousing after the final inspection is qualified.

7. The method for manufacturing a low-clearance high-vanadium-titanium alloy for sports equipment according to claim 6, wherein the method comprises the following steps: the secondary vacuum consumable casting is carried out in a cold copper crucible, the diameter of the secondary vacuum consumable cast ingot is controlled to be phi less than 480mm, and the hot forging and cogging temperature of the cast ingot is as follows: 980-: 850 ℃ and 950 ℃, annealing (solid melting) temperature: 790-810 ℃, aging temperature: 480 ℃ and 560 ℃; tensile strength is more than 750MPa, yield strength is more than 710MPa, and elongation is more than 25%; after the solid solution and the aging state, the tensile strength is more than 1100MPa, the yield strength is more than 980MPa, and the elongation is more than 15 percent.

8. The method for manufacturing a low-clearance high-vanadium-titanium alloy for sports equipment according to claim 6, wherein the method comprises the following steps: the low-clearance high-vanadium titanium alloy comprises the following chemical components: 18.00 to 21.50 percent of V, 3.20 to 4.80 percent of Al, 0.80 to 2.00 percent of Sn, 0.10 to 0.25 percent of Zr, less than 0.08 percent of O, less than 0.005 percent of N, less than 0.006 percent of C and less than 0.002 percent of H.

Technical Field

The invention relates to the technical field of metal materials for sports equipment, in particular to a manufacturing method of a low-clearance high-vanadium-titanium alloy for the sports equipment.

Background

In recent years, titanium alloys have become widely used in the field of sports equipment, and the titanium alloys can meet the manufacturing requirements of sports bicycles, skiing, skating, mountaineering equipment and the like due to excellent performance and low specific gravity. Particularly, in the production of golf tools, the titanium alloy is used in the manufacture of golf club heads, and has unique advantages.

Golf club heads, which are the core components of golf clubs, especially wood club heads, require not only volume but also better elasticity and impact toughness. The titanium alloy material for manufacturing the rod head is more and more difficult to manufacture. The commonly used titanium alloy TC4 (Chinese standard) plate is difficult to meet the requirements of the strength and elasticity of the club head, and particularly, the shape of the club head is more and more complex, and the forming difficulty is more and more high. The invention provides a method for manufacturing a novel beta-type titanium alloy material, mainly a titanium alloy ingot and plate production process, and other processed material rods, pipes and wires can be produced by using the cast ingot. The components of the cast ingot are vanadium-aluminum-tin-zirconium series, and the titanium alloy is mainly characterized in that:

the high plasticity and high toughness are satisfied, the cold and hot processing performance is very good, and the service performance of high strength and high elasticity can be satisfied.

The high-performance titanium alloy processing material is produced by relying on a high-quality titanium alloy ingot, and the traditional production method of the high-vanadium beta type titanium alloy ingot comprises the following steps: the high vanadium-aluminum intermediate alloy produced by the aluminothermic method is used as a method for adding vanadium elements, and the high vanadium-aluminum intermediate alloy, sponge titanium and other elements are extruded by a hydraulic press to form a consumable electrode, and then are smelted by a vacuum consumable furnace for three times to produce a titanium alloy ingot. Because the impurity component of the vanadium-aluminum intermediate alloy low-gap element O, N, C, H produced by the aluminothermic method is difficult to control and the component is segregated, the quality of the domestic high beta type titanium alloy can not reach the level of developed countries all the time, and the performance difference is large. The invention is a titanium alloy ingot casting production process route which is completely different from other production units in component adjustment after mother alloy is refined according to the production state of domestic raw materials.

Disclosure of Invention

The invention aims to provide a method for manufacturing a low-clearance high-vanadium-titanium alloy for sports equipment, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides a manufacturing method of a low-clearance high-vanadium titanium alloy for sports equipment, which comprises the steps of adding pure titanium into a titanium alloy master alloy, supplementing elements of vacuum melting and burning loss, and further adjusting the structure and components to obtain the low-clearance high-vanadium titanium alloy.

Preferably, the titanium alloy master alloy comprises the following raw materials: the self-made vanadium furnace intermediate alloy produced by the aluminothermic method, super 0-grade sponge titanium, self-made titanium-tin alloy and pure zirconium.

Preferably, V in the self-made vanadium furnace intermediate alloy produced by the aluminothermic method accounts for 85-89 percent, and Al accounts for 11-15 percent; ti in the super 0-grade titanium sponge is more than 99.90 percent; sn in the self-made titanium-tin alloy is more than 30 percent; zr in pure zirconium is more than 99.5 percent.

Preferably, the titanium alloy master alloy is cast and smelted by adopting the following sequential steps:

step one, placing a self-made vanadium furnace intermediate alloy, super-0-grade sponge titanium, a self-made titanium-tin alloy and pure zirconium produced by a thermit method into an induction area of a water-cooled copper crucible vacuum induction furnace in a layering manner, and then closing a furnace door;

secondly, pumping air out of the water-cooled copper crucible vacuum induction furnace;

step three, starting a power supply of the water-cooled copper crucible vacuum induction furnace, and refining after smelting in the water-cooled copper crucible vacuum induction furnace;

step four, inputting the raw materials refined in the step three into an ingot casting mold to complete ingot casting;

step five, breaking vacuum after furnace cooling;

and step six, taking out the produced titanium alloy master alloy cast ingot, and storing for later use after the analysis and detection are qualified.

Preferably, the chemical composition of the titanium alloy master alloy ingot is as follows: v40-45%, Al 6-10%, Sn 2-3%, Zr 0.2-0.3%, O less than 0.06%, N less than 0.003%, C less than 0.005%, and H less than 0.001%.

Preferably, the low-clearance high-vanadium titanium alloy is produced by adopting the following sequential steps:

step one, uniformly distributing the titanium alloy master alloy cast ingot and TA0 bars of ultra-low gap elements in an axial direction and a radial direction in a self-made vacuum welding box;

step two, assembling and welding a vacuum consumable electrode of the primary cast ingot by using a plasma welding method;

fixing the assembled and welded consumable electrode on a vacuum consumable electrode furnace, and carrying out vacuum consumable first ingot casting and casting according to a formulated smelting process;

step four, after the first smelting ingot casting is finished, putting the first smelting ingot casting into a vacuum welding box for assembling and welding a vacuum consumable electrode for secondary smelting;

step five, performing secondary vacuum consumable electrode fusion casting on the assembled and welded secondary vacuum consumable electrode according to the determined secondary vacuum;

step six, breaking vacuum and discharging after the furnace is cooled, and sampling and analyzing the second smelting cast ingot;

and seventhly, removing the peel of the head and the tail of the cast ingot, performing final inspection, and warehousing after the final inspection is qualified.

Preferably, the secondary vacuum consumable casting is carried out in a cold copper crucible, the diameter of the secondary vacuum consumable cast ingot is controlled to be phi less than 480mm, and the hot forging and cogging temperature of the cast ingot is as follows: 980-: 850 ℃ and 950 ℃, annealing (solid melting) temperature: 790-810 ℃, aging temperature: 480 ℃ and 560 ℃; tensile strength is more than 750MPa, yield strength is more than 710MPa, and elongation is more than 25%; after the solid solution and the aging state, the tensile strength is more than 1100MPa, the yield strength is more than 980MPa, and the elongation is more than 15 percent.

Preferably, the chemical composition of the low-gap high-vanadium titanium alloy is as follows: 18.00 to 21.50 percent of V, 3.20 to 4.80 percent of Al, 0.80 to 2.00 percent of Sn, 0.10 to 0.25 percent of Zr, less than 0.08 percent of O, less than 0.005 percent of N, less than 0.006 percent of C and less than 0.002 percent of H.

Compared with the prior art, the invention has the beneficial effects that:

1. low content of interstitial elements, high plasticity and high toughness

2. High vanadium content, beta-type structure and very good cold and hot processing performance

3. Good heat treatment strengthening performance, and can meet the service performance of high strength and high elasticity.

Drawings

FIG. 1 is a block diagram of a titanium alloy master alloy production process of the present invention;

FIG. 2 is a structural view of the present invention in a hot rolled state;

FIG. 3 is a block diagram of the secondary vacuum consumable melting and casting process of the present invention.

Detailed Description

Example 1

Referring to the attached fig. 1, the titanium alloy master alloy is cast and smelted by the following steps in sequence:

step one, placing a self-made vanadium furnace intermediate alloy, super-0-grade sponge titanium, a self-made titanium-tin alloy and pure zirconium produced by a thermit method into an induction area of a water-cooled copper crucible vacuum induction furnace in a layering manner, and then closing a furnace door;

secondly, pumping air out of the water-cooled copper crucible vacuum induction furnace;

step three, starting a power supply of the water-cooled copper crucible vacuum induction furnace, and refining after smelting in the water-cooled copper crucible vacuum induction furnace;

step four, inputting the raw materials refined in the step three into an ingot casting mold to complete ingot casting;

step five, breaking vacuum after furnace cooling;

and step six, taking out the produced titanium alloy master alloy cast ingot, and storing for later use after the analysis and detection are qualified.

The chemical components of the titanium alloy master alloy cast ingot are as follows: v40-45%, Al 6-10%, Sn 2-3%, Zr 0.2-0.3%, O less than 0.06%, N less than 0.003%, C less than 0.005%, and H less than 0.001%.

Example 2

Referring to the attached fig. 2 and 3, the low-clearance high-vanadium titanium alloy is produced by the following steps in sequence:

step one, uniformly distributing the titanium alloy master alloy cast ingot and TA0 bars of ultra-low gap elements in an axial direction and a radial direction in a self-made vacuum welding box;

step two, assembling and welding a vacuum consumable electrode of the primary cast ingot by using a plasma welding method;

fixing the assembled and welded consumable electrode on a vacuum consumable electrode furnace, and carrying out vacuum consumable first ingot casting and casting according to a formulated smelting process;

step four, after the first smelting ingot casting is finished, putting the first smelting ingot casting into a vacuum welding box for assembling and welding a vacuum consumable electrode for secondary smelting;

step five, performing secondary vacuum consumable electrode fusion casting on the assembled and welded secondary vacuum consumable electrode according to the determined secondary vacuum;

step six, breaking vacuum and discharging after the furnace is cooled, and sampling and analyzing the second smelting cast ingot;

and seventhly, removing the peel of the head and the tail of the cast ingot, performing final inspection, and warehousing after the final inspection is qualified.

The secondary vacuum consumable casting is carried out in a cold copper crucible, the diameter of the secondary vacuum consumable cast ingot is controlled to be phi less than 480mm, and the hot forging and cogging temperature of the cast ingot is as follows: 980-: 850 ℃ and 950 ℃, annealing (solid melting) temperature: 790-810 ℃, aging temperature: 480 ℃ and 560 ℃; tensile strength is more than 750MPa, yield strength is more than 710MPa, and elongation is more than 25%; after the solid solution and the aging state, the tensile strength is more than 1100MPa, the yield strength is more than 980MPa, and the elongation is more than 15 percent.

Preferably, the chemical composition of the low-gap high-vanadium titanium alloy is as follows: 18.00 to 21.50 percent of V, 3.20 to 4.80 percent of Al, 0.80 to 2.00 percent of Sn, 0.10 to 0.25 percent of Zr, less than 0.08 percent of O, less than 0.005 percent of N, less than 0.006 percent of C and less than 0.002 percent of H.

The invention has been described in an illustrative manner, and it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description, since such modifications are intended to be included within the spirit and scope of the invention as defined in the appended claims.