阅读说明：本技术 一种高尔夫球头材料及其制备工艺和球头打击面 (Golf club head material, preparation process thereof and club head striking face ) 是由 朱明洲 游佳谦 于 2021-08-06 设计创作，主要内容包括：本发明属于高尔夫球头制备技术领域,具体涉及一种高尔夫球头材料及其制备工艺和球头打击面。所述高尔夫球头材料,由以下原料制备而成：钒粉、铝粉、铬粉、镍粉、锰粉、铁粉、钛粉。具有较好的弹性性能和硬度性能,同时还具有良好的拉伸性能。(The invention belongs to the technical field of golf head preparation, and particularly relates to a golf head material, a preparation process thereof and a golf head striking surface. The golf head material is prepared from the following raw materials: vanadium powder, aluminum powder, chromium powder, nickel powder, manganese powder, iron powder and titanium powder. Has better elasticity and hardness performance and good tensile property.)

1. A golf head material is prepared from the following raw materials: vanadium powder, aluminum powder, chromium powder, nickel powder, manganese powder, iron powder and titanium powder.

2. The golf club head material according to claim 1, which is prepared from the following raw materials in percentage by mass: 1-5% of vanadium powder, 1-8% of aluminum powder, 5-10% of chromium powder, 1-8% of nickel powder, 0.1-1% of manganese powder, 0.1-1.5% of iron powder and the balance of titanium powder.

3. The golf club head material according to claim 1, which is prepared from the following raw materials in percentage by mass: 1-3% of vanadium powder, 1-4% of aluminum powder, 8-10% of chromium powder, 1-3% of nickel powder, 0.1-0.5% of manganese powder, 0.1-0.5% of iron powder and the balance of titanium powder.

4. A method for preparing a golf club head material according to any one of claims 1 to 3, comprising the steps of:

s1: injecting the molten wax into a mold to produce a wax pattern for a golf club head;

s2: coating the wax pattern with a ceramic material to form a ceramic shell, and then melting the wax pattern to leave the ceramic shell;

s3: sintering the ceramic shell to form a ceramic shell mold, smelting vanadium powder, aluminum powder, chromium powder, nickel powder, manganese powder, iron powder and titanium powder in a smelting furnace in sequence, injecting liquid raw materials into the ceramic shell mold, and cooling to obtain the ceramic shell mold.

5. The method for preparing a golf club head material according to claim 4, wherein in step S2, the ceramic material is one that is resistant to temperatures of 2600 ℃ or higher, preferably tantalum carbide or hafnium carbide.

6. The method for preparing a golf club head material as claimed in claim 4, wherein in step S3, the melting process comprises heating to 1200 ℃ at a rate of 20-25 ℃/min, maintaining the temperature for 30-60min, heating to 1800 ℃ at a rate of 1-5 ℃/min, maintaining the temperature for 30-60min, heating to 2500 ℃ at a rate of 1-5 ℃/min, and maintaining the temperature for 10-20min to obtain the liquid raw material.

7. The method for preparing a golf club head material as claimed in claim 4, wherein in step S3, the cooling process comprises cooling to 1500 ℃ and 1500 ℃ at a rate of 5-8 ℃/min, maintaining the temperature for 30-60min, cooling to 600 ℃ at a rate of 1-5 ℃/min, maintaining the temperature for 30-60min, and then cooling to room temperature at a rate of 10-15 ℃/min.

8. Use of the golf head material according to any one of claims 1-3 or the golf head material prepared by the preparation method according to any one of claims 4-7 in preparing a golf club head striking surface or a casing.

9. A processing method of a striking surface of a golf head comprises the following steps:

preparing a golf ball head material prepared by the preparation method according to any one of claims 4 to 7 into a ball head striking surface, and milling the ball head striking surface to flatten the striking surface; after the hitting surface is milled and leveled, a line ditch modeling processing cutter for milling the line ditch of the hitting surface is used, a workbench of a four-axis processing machine tool rotates by 90 degrees and drives a golf ball head to rotate, the normal direction of the hitting surface of the golf ball head is vertical to the rotating shaft of the line ditch modeling processing cutter, and the line ditch modeling processing cutter is arranged and processed to form line ditches according to the line ditch of the hitting surface of the golf ball head; the line groove modeling processing cutter comprises a cutter handle arranged on a main shaft of a four-shaft processing machine tool, and a modeling blade (3) is arranged at the lower end part of the cutter handle in a non-rotatable manner; a cuboid transition surface (4) is formed between the linear groove (1) and the striking surface (2), and the curvature radius R formed by the tangency of the linear groove (1) and the transition surface (4) is more than or equal to 0.254 and less than or equal to 0.279.

10. A method of forming a striking face according to claim 9 wherein the arc angle formed by the tangent of the cord groove (1) to the transition face (4) is R, and the radius R of the circle inscribed by the transition face (4) and the R angle is R₁ ^＝0.254; radius R of the transition surface (4) and the circumcircle of the R angle₂ ^＝0.279。

11. A method of working a striking face according to claim 9 wherein the width w of the transition face (4) is 0.1-1.5mm, the depth s of the transition face (4) is 0.01-0.06mm, and the length of the transition face (4) is 0-12mm shorter than the length of the cord groove 1.

12. A golf club head striking face prepared by the method of processing a golf club head striking face according to any one of claims 9 to 11.

Technical Field

The invention belongs to the technical field of golf head preparation, and particularly relates to a golf head material, a preparation process thereof and a golf head striking surface.

Background

Golf implements can be generally classified into three major categories: wood club head, iron club head and push rod. In the design and use of the golf tool for competition, the size, the shape, the volume, the characteristic time, the inertia moment, the coefficient of restitution and the like all need to meet the standard requirements. With the increasing functional requirements, the materials used in golf club heads are made of the earliest hickory and persimmon, and gradually become titanium alloy, stainless steel and iron materials which are commonly used at present. The selection of materials is important to meet the market demand.

In the development process of the golf club material, the weight and the strength of the solid club head made of persimmon wood at an early stage are lower, and the metal material used at present is required to not only enable the club head to have higher and higher strength, but also reduce the weight and improve the success rate of hitting.

Although the prior art has a plurality of methods for improving golf head materials, the prior art cannot meet the higher and higher market demands. For example, chinese patent application CN 105950910 a discloses a fatigue-resistant titanium alloy material for a golf club head, which comprises the following chemical components in percentage by mass: 5.3 to 5.7 percent of Al, 3.11 to 3.95 percent of Sn, 0.25 to 0.96 percent of Mo, 0.23 to 0.69 percent of Nb, 2.61 to 3.45 percent of Zr, 0.16 to 0.45 percent of Si, 0.23 to 0.65 percent of Ta, 0.13 to 0.25 percent of Pd, 0.12 to 0.23 percent of Fe, 0.03 to 0.07 percent of C, 0.02 to 0.05 percent of N, 0.008 to 0.011 percent of H, 0.08 to 0.14 percent of O and the balance of Ti. The metal raw materials adopted for preparing the master alloy are pure metal simple substance elements with the purity of more than 99.9 percent, the alloy is mixed according to the chemical composition, the smelting equipment of the alloy adopts a high vacuum arc smelting furnace, and the vacuum degree is higher than 5 multiplied by 10^{- 3}Pa, arc melting under the protection of argon, controlling the content of C to be 0.03-0.07%, the content of N to be 0.02-0.05%, the content of H to be 0.008-0.011% and the content of O to be 0.08-0.14% after the master alloy is melted, and then pouring the molten titanium alloy into a golf ball head mould shell.

Chinese patent application CN 111304550A discloses a golf club head-rolling material and a preparation method and application thereof, belonging to the technical field of golf club material. The golf club head-rolling material comprises the following elements in percentage by mass: 0.18-0.5% of C, 0.1-2.0% of Mn0.1-2.0% of Si, 12.0-18.0% of Cr12.0, 1.0-4.0% of Ni1, less than or equal to 1.0% of Mo, less than or equal to 0.3% of N, less than or equal to 0.2% of Al, less than or equal to 1.0% of Nb, less than or equal to 0.045% of P, less than or equal to 0.03% of S, and the balance of Fe. And sequentially carrying out smelting, electroslag remelting and casting on the obtained mixture, and sequentially carrying out forging blank making, hot rolling, cold rolling and annealing treatment on the cast ingot to obtain the golf club head-protecting material.

In order to further improve the elasticity and the impact resistance of the golf head, the invention aims to provide the golf head, a hitting surface structure and a preparation process thereof so as to meet higher and higher market demands.

Disclosure of Invention

In order to overcome the technical problems, the invention provides a golf head material, a preparation process thereof and a golf head striking surface. Has better elasticity and hardness performance and good tensile property.

In order to achieve the above purpose, the technical scheme provided by the invention is as follows: a golf head material is prepared from the following raw materials: vanadium powder, aluminum powder, chromium powder, nickel powder, manganese powder, iron powder and titanium powder.

Preferably, the golf head material is prepared from the following raw materials in percentage by mass: 1-5% of vanadium powder, 1-8% of aluminum powder, 5-10% of chromium powder, 1-8% of nickel powder, 0.1-1% of manganese powder, 0.1-1.5% of iron powder and the balance of titanium powder.

Preferably, the golf head material is prepared from the following raw materials in percentage by mass: 1-3% of vanadium powder, 1-4% of aluminum powder, 8-10% of chromium powder, 1-3% of nickel powder, 0.1-0.5% of manganese powder, 0.1-0.5% of iron powder and the balance of titanium powder.

The invention also aims to provide a preparation method of the golf head material, which comprises the following steps:

s1, injecting the molten wax into the mould to produce a wax mould of the golf head;

s2 coating the wax pattern with a ceramic material to form a ceramic shell, and then melting the wax pattern to leave the ceramic shell;

s3, sintering the ceramic shell to form a ceramic shell mold, smelting vanadium powder, aluminum powder, chromium powder, nickel powder, manganese powder, iron powder and titanium powder in a smelting furnace in sequence, injecting the liquid raw materials into the ceramic shell mold, and cooling to obtain the ceramic shell mold.

Preferably, in step S2, the ceramic material is a ceramic material resistant to temperature of 2600 ℃ or higher, and is preferably tantalum carbide or hafnium carbide.

Preferably, in step S3, the melting process comprises heating to 1200 ℃ at a rate of 20-25 ℃/min, maintaining the temperature for 30-60min, heating to 1800 ℃ at a rate of 1-5 ℃/min, maintaining the temperature for 30-60min, heating to 2500 ℃ at a rate of 1-5 ℃/min, and maintaining the temperature for 10-20min to obtain the liquid raw material.

Preferably, in step S3, the cooling process comprises cooling to 1500 ℃ at a rate of 5-8 ℃/min, maintaining the temperature for 30-60min, cooling to 600 ℃ at a rate of 1-5 ℃/min, maintaining the temperature for 30-60min, and then cooling to room temperature at a rate of 10-15 ℃/min.

The invention also aims to provide the application of the golf head material in preparing a golf club head rolling face or a golf club head shell.

The invention also aims to provide a processing method of the striking surface of the golf head, which comprises the following steps:

the prepared golf ball head material is made into a ball head striking surface, and the ball head striking surface is processed by milling to make the striking surface smooth; after the hitting surface is milled and leveled, a line ditch modeling processing cutter for milling the line ditch of the hitting surface is used, a workbench of a four-axis processing machine tool rotates by 90 degrees and drives a golf ball head to rotate, the normal direction of the hitting surface of the golf ball head is vertical to the rotating shaft of the line ditch modeling processing cutter, and the line ditch modeling processing cutter is arranged and processed to form line ditches according to the line ditch of the hitting surface of the golf ball head; the line groove modeling processing cutter comprises a cutter handle arranged on a main shaft of a four-shaft processing machine tool, and a modeling blade 3 is arranged at the lower end part of the cutter handle in a non-rotatable manner; a cuboid-shaped transition surface 4 is formed between the wire ditch 1 and the striking surface 2, and the curvature radius R formed by the wire ditch 1 and the transition surface 4 in a tangent mode is more than or equal to 0.254 and less than or equal to 0.279.

The arc angle formed by the tangent of the wire groove 1 and the transition surface 4 is R, and preferably, the radius R of the tangent circle of the transition surface 4 and the R angle is₁ ^＝0.254; radius R of the transition surface 4 and the circumcircle of the R angle₂ ^＝0.279。

Preferably, the width w of the transition surface 4 is 0.1-1.5mm, the depth s of the transition surface 4 is 0.01-0.06mm, and the length of the transition surface 4 is 0-12mm shorter than the length of the wire groove 1.

The invention also aims to provide the golf head striking surface prepared by the processing method of the golf head striking surface.

Compared with the prior art, the invention has the technical advantages that:

(1) the golf head material provided by the invention has better elasticity and hardness performance, and can better meet the requirements of golf sports; and secondly, the preparation method is simple and is suitable for industrial popularization and application.

(2) The vanadium powder and the nickel powder are used in the preparation process of the golf head material, so that the elasticity of the golf head can be effectively improved, the impact toughness is enhanced, and meanwhile, the gas resistance, salt resistance and water corrosion resistance of the golf ball can be improved, and the service life of the golf head is effectively prolonged.

(3) The golf head material has the advantages of few raw material types and few impurity types, reduces the processing complexity and impurities, and simultaneously improves the properties of the material such as strength and the like.

(4) The invention changes the processing mode of the line groove of the striking face and changes the structure of the line groove modeling processing cutter, and the processing method of the line groove of the striking face and the striking face of the golf iron rod is matched with the line groove modeling processing cutter with a specific structure.

(5) The ball head striking surface processing method provided by the invention can increase the accurate controlled processing depth, can enable the maximum curvature radius to be more accurately formed, enables the R-arc profile to exceed the outer 0.279mm of a double circle, and can judge the R-arc profile and the R₂(0.279) the focus needs to be less than or equal to 10 degrees, and if the amount of more than 10 degrees exceeds the measurement amount by 50%, the focus needs to be reworked.

(6) According to the linear groove of the existing product, the tangent points of the two sides of the circle can fall on the grain road area and the side wall of the linear groove, the tangent points of the circle can fall on the shape made by the linear groove cutter by the linear groove made by the cutter, and meanwhile, the linear groove of the manufactured golf head striking surface forms a transition surface on the striking surface, so that the striking performance of the golf head striking surface can be effectively improved, and the striking stability is improved.

Drawings

FIG. 1: the structure of the blade is schematic;

FIG. 2: the invention relates to a processing schematic diagram of a line groove of a striking face;

FIG. 3: the invention relates to a schematic diagram of an inscribed circle and an circumscribed circle of an arc angle of a line ditch of a striking face;

FIG. 4: a cross-sectional view of a wire trench of the present invention;

FIG. 5: cross-sectional views of prior art wire trenches;

the specific meanings of the symbols in the drawings are as follows:

1 is a wire ditch, 2 is a striking surface, 3 is a blade, and 4 is a transition surface between the wire ditch and the striking surface;

r is an arc angle formed by tangency of the line ditch of the striking face and the transition face; r is a curvature radius formed by tangency of the linear groove and the transition surface;

R₁radius of inscribed circle representing transition plane and angle R, R₂The radius of the circumscribed circle representing the transition plane and the r angle;

h represents the wire trench height; w is the width of the transition surface between the wire ditch and the striking surface, and s is the depth of the transition surface between the wire ditch and the striking surface.

The invention will now be further illustrated with reference to the accompanying drawings and examples:

Detailed Description

The present invention will be described below with reference to specific examples to make the technical aspects of the present invention easier to understand and grasp, but the present invention is not limited thereto. The experimental methods described in the following examples are all conventional methods unless otherwise specified; the reagents and materials are commercially available, unless otherwise specified.

Basic embodiment

A processing method of a striking surface of a golf head comprises the following steps:

manufacturing a golf club head striking surface by using a golf club head material, and milling the golf club head striking surface to flatten the striking surface; after the hitting surface is milled and leveled, a line ditch modeling processing cutter for milling the line ditch of the hitting surface is used, a workbench of a four-axis processing machine tool rotates by 90 degrees and drives a golf ball head to rotate, the normal direction of the hitting surface of the golf ball head is vertical to the rotating shaft of the line ditch modeling processing cutter, and the line ditch modeling processing cutter is arranged and processed to form line ditches according to the line ditch of the hitting surface of the golf ball head; wherein the line groove modeling processing cutter comprisesThe lower end part of the knife handle is provided with a modeling blade 3 in a non-rotatable way; a cuboid-shaped transition surface 4 is formed between the wire ditch 1 and the striking surface 2, and the curvature radius R formed by the tangency of the wire ditch 1 and the transition surface 4 is more than or equal to 0.254 and less than or equal to 0.279; the arc angle formed by the tangent of the wire groove 1 and the transition surface 4 is R, and the radius R of an inscribed circle of the transition surface 4 and the R angle₁ ^＝0.254; radius R of the transition surface 4 and the circumcircle of the R angle₂ ^＝0.279; the width w of the transition surface 4 is 0.1-1.5mm, the depth s of the transition surface 4 is 0.01-0.06mm, and the length of the transition surface 4 is 0-12mm shorter than the length of the wire groove 1.

The structure schematic diagram of the blade of the invention is shown in figure 1, the processing schematic diagram of the striking surface linear groove is shown in figure 2, the schematic diagram of the inscribed circle and the circumscribed circle of the arc angle of the striking surface linear groove is shown in figure 3, compared with the linear groove section (figure 5) in the prior art, the striking surface linear groove 1 and the surface of the striking surface 2 manufactured by the invention are provided with a transition surface 4 (shown in figure 4), wherein the width w of the transition surface 4 is 0.1-1.5mm, the depth s is 0.01-0.06mm, and the length of the transition surface 4 is 0-12mm shorter than the length of the linear groove 1.

Example 1

The golf head material is prepared from the following raw materials in percentage by mass: 3% of vanadium powder, 8% of aluminum powder, 8% of chromium powder, 3% of nickel powder, 0.5% of manganese powder, 0.5% of iron powder and the balance of titanium powder;

the preparation method of the golf head material comprises the following steps:

s1, injecting the molten wax into the mould to produce a wax mould of the golf head;

s2, coating the wax pattern with a tantalum carbide ceramic material to form a ceramic shell, and then melting the wax pattern to leave the ceramic shell;

s3, sintering a ceramic shell to form a ceramic shell mold, smelting vanadium powder, aluminum powder, chromium powder, nickel powder, manganese powder, iron powder and titanium powder in a smelting furnace in sequence, heating to 1100 ℃ at a speed of 22 ℃/min, preserving heat for 45min, heating to 1700 ℃ at a speed of 2 ℃/min, preserving heat for 40min, heating to 2300 ℃ at a speed of 3 ℃/min, preserving heat for 15min to obtain a liquid raw material, injecting the liquid raw material into the ceramic shell mold, cooling to 1300 ℃ at a speed of 7 ℃/min, preserving heat for 50min, cooling to 550 ℃ at a speed of 2 ℃/min, preserving heat for 40min, and then heating to room temperature at a speed of 12 ℃/min.

Example 2

The golf head material is prepared from the following raw materials in percentage by mass: 1% of vanadium powder, 4% of aluminum powder, 5% of chromium powder, 8% of nickel powder, 0.1% of manganese powder, 1.5% of iron powder and the balance of titanium powder.

The preparation method of the golf head material comprises the following steps:

s1, injecting the molten wax into the mould to produce a wax mould of the golf head;

s2, coating the wax pattern with a hafnium carbide ceramic material to form a ceramic shell, and then melting the wax pattern to leave the ceramic shell;

s3, sintering a ceramic shell to form a ceramic shell mold, smelting vanadium powder, aluminum powder, chromium powder, nickel powder, manganese powder, iron powder and titanium powder in a smelting furnace in sequence, heating to 1000 ℃ at a speed of 20 ℃/min, preserving heat for 30min, heating to 1600 ℃ at a speed of 1 ℃/min, preserving heat for 30min, heating to 2200 ℃ at a speed of 1 ℃/min, preserving heat for 10min to obtain a liquid raw material, injecting the liquid raw material into the ceramic shell mold, cooling to 1200 ℃ at a speed of 5 ℃/min, preserving heat for 60min, cooling to 500 ℃ at a speed of 5 ℃/min, preserving heat for 60min, and then heating to room temperature at a speed of 10 ℃/min.

Example 3

The golf head material is prepared from the following raw materials in percentage by mass: 5% of vanadium powder, 1% of aluminum powder, 10% of chromium powder, 1% of nickel powder, 1% of manganese powder, 0.1% of iron powder and the balance of titanium powder.

The preparation method of the golf head material comprises the following steps:

s1, injecting the molten wax into the mould to produce a wax mould of the golf head;

s2, coating the wax pattern with a tantalum carbide ceramic material to form a ceramic shell, and then melting the wax pattern to leave the ceramic shell;

s3, sintering a ceramic shell to form a ceramic shell mold, smelting vanadium powder, aluminum powder, chromium powder, nickel powder, manganese powder, iron powder and titanium powder in a smelting furnace in sequence, heating to 1200 ℃ at a speed of 25 ℃/min, preserving heat for 60min, heating to 1800 ℃ at a speed of 5 ℃/min, preserving heat for 60min, heating to 2500 ℃ at a speed of 5 ℃/min, preserving heat for 20min to obtain a liquid raw material, injecting the liquid raw material into the ceramic shell mold, cooling to 1500 ℃ at a speed of 8 ℃/min, preserving heat for 30min, cooling to 600 ℃ at a speed of 1 ℃/min, preserving heat for 30min, and then heating to room temperature at a speed of 15 ℃/min.

Comparative example 1

Compared with the example 1, the difference is only that the raw materials are different, and the chromium powder is replaced by the silicon powder.

The golf head material is prepared from the following raw materials in percentage by mass: 3% of vanadium powder, 8% of aluminum powder, 8% of silicon powder, 3% of nickel powder, 0.5% of manganese powder, 0.5% of iron powder and the balance of titanium powder;

the preparation method of the golf head material comprises the following steps:

s1, injecting the molten wax into the mould to produce a wax mould of the golf head;

s2, coating the wax pattern with a tantalum carbide ceramic material to form a ceramic shell, and then melting the wax pattern to leave the ceramic shell;

s3, sintering the ceramic shell to form a ceramic shell mold, smelting vanadium powder, aluminum powder, silicon powder, nickel powder, manganese powder, iron powder and titanium powder in a smelting furnace in sequence, heating to 1100 ℃ at a speed of 22 ℃/min, preserving heat for 45min, heating to 1700 ℃ at a speed of 2 ℃/min, preserving heat for 40min, heating to 2300 ℃ at a speed of 3 ℃/min, preserving heat for 15min to obtain a liquid raw material, injecting the liquid raw material into the ceramic shell mold, cooling to 1300 ℃ at a speed of 7 ℃/min, preserving heat for 50min, cooling to 550 ℃ at a speed of 2 ℃/min, preserving heat for 40min, and then heating to room temperature at a speed of 12 ℃/min.

Comparative example 2

Compared with example 1, the difference is that the raw material is different, and the manganese powder is replaced by molybdenum powder.

The golf head material is prepared from the following raw materials in percentage by mass: 3% of vanadium powder, 8% of aluminum powder, 8% of chromium powder, 3% of nickel powder, 0.5% of molybdenum powder, 0.5% of iron powder and the balance of titanium powder;

the preparation method of the golf head material comprises the following steps:

s1, injecting the molten wax into the mould to produce a wax mould of the golf head;

s2, coating the wax pattern with a tantalum carbide ceramic material to form a ceramic shell, and then melting the wax pattern to leave the ceramic shell;

s3, sintering the ceramic shell to form a ceramic shell mold, smelting vanadium powder, aluminum powder, chromium powder, nickel powder, molybdenum powder, iron powder and titanium powder in a smelting furnace in sequence, heating to 1100 ℃ at a speed of 22 ℃/min, preserving heat for 45min, heating to 1700 ℃ at a speed of 2 ℃/min, preserving heat for 40min, heating to 2700 ℃ at a speed of 3 ℃/min, preserving heat for 15min to obtain a liquid raw material, injecting the liquid raw material into the ceramic shell mold, cooling to 1300 ℃ at a speed of 7 ℃/min, preserving heat for 50min, cooling to 550 ℃ at a speed of 2 ℃/min, preserving heat for 40min, and then heating to room temperature at a speed of 12 ℃/min.

Comparative example 3

The only difference compared to example 1 is the preparation process.

A golf club head material was prepared as in example 1;

the preparation method of the golf head material comprises the following steps:

S1-S2 the same as in example 1;

s3, sintering a ceramic shell to form a ceramic shell mold, smelting vanadium powder, aluminum powder, chromium powder, nickel powder, manganese powder, iron powder and titanium powder in a smelting furnace in sequence, heating to 1100 ℃ at a speed of 10 ℃/min, preserving heat for 45min, heating to 1700 ℃ at a speed of 2 ℃/min, preserving heat for 40min, heating to 2300 ℃ at a speed of 3 ℃/min, preserving heat for 15min to obtain a liquid raw material, injecting the liquid raw material into the ceramic shell mold, cooling to 1300 ℃ at a speed of 7 ℃/min, preserving heat for 50min, cooling to 550 ℃ at a speed of 2 ℃/min, preserving heat for 40min, and then heating to room temperature at a speed of 12 ℃/min.

Comparative example 4

The only difference compared to example 1 is the preparation process.

A golf club head material was prepared as in example 1;

the only difference compared to example 1 is the preparation process.

A golf club head material was prepared as in example 1;

the preparation method of the golf head material comprises the following steps:

S1-S2 the same as in example 1;

s3, sintering a ceramic shell to form a ceramic shell mold, smelting vanadium powder, aluminum powder, chromium powder, nickel powder, manganese powder, iron powder and titanium powder in a smelting furnace in sequence, heating to 1100 ℃ at a speed of 22 ℃/min, preserving heat for 45min, heating to 1700 ℃ at a speed of 2 ℃/min, preserving heat for 40min, heating to 2300 ℃ at a speed of 3 ℃/min, preserving heat for 15min to obtain a liquid raw material, injecting the liquid raw material into the ceramic shell mold, cooling to 1300 ℃ at a speed of 15 ℃/min, preserving heat for 50min, cooling to 550 ℃ at a speed of 2 ℃/min, preserving heat for 40min, and then heating to room temperature at a speed of 12 ℃/min.

Comparative example 5

The titanium alloy applied to the golf club head comprises the following components in percentage by mass: titanium powder: 88.5%, aluminum powder: 9% and bismuth powder: 2% and iron powder: 0.4%, molybdenum powder: 0.08%, chromium powder: 0.02 percent, and the sum of the mass percentages of the components is 100 percent; the preparation method comprises the following steps:

step 1: weighing the following components in percentage by mass: titanium powder: 88.5%, aluminum powder: 9% and bismuth powder: 2% and iron powder: 0.4%, molybdenum powder: 0.08%, chromium powder: 0.02 percent, and the sum of the mass percentages of the components is 100 percent;

step 2: drying the raw materials weighed in the step 1 in a drying chamber at the temperature of 85 ℃ for 24 hours;

and step 3: putting the dried raw materials in the step 2 into a mixer, and mixing for 9min at a rotating speed of 25 rpm;

and 4, step 4: cooling the mixed raw materials in the step 3 to room temperature;

and 5: putting the cooled raw materials in the step 4 into a smelting furnace for smelting to obtain a finished product titanium alloy, and specifically smelting

The refining process comprises the following steps: step 5.1: heating to 295 ℃ at the speed of 10 ℃/min from room temperature, and preserving the temperature at 295 ℃ for 30 minutes; step 5.2: heating to 670 deg.C at a rate of 10 deg.C/min, and maintaining at 670 deg.C for 40 min;

step 5.3: heating to 1650 deg.C at a rate of 10 deg.C/min, and maintaining at 1650 deg.C for 60 min;

step 5.4: heating to 1860 deg.C at a rate of 10 deg.C/min, and maintaining at 1860 deg.C for 120 min;

step 5.5: heating to 2700 ℃ at the speed of 10 ℃/min, and preserving the temperature at 2700 ℃ for 240min to obtain molten titanium alloy;

step 5.6: and (5) cooling the titanium alloy obtained by the treatment in the step 5.5 to room temperature along with the furnace to obtain the finished product titanium alloy.

Evaluation of Performance

1. The tensile strength and elongation of the products of examples 1-3 and comparative examples 1-5 were measured by reference to the method in GB/T3621-2007 titanium and titanium alloy sheet, and hardness values were measured using a Rockwell hardness tester, and the results are shown in Table 1.

TABLE 1 mechanical Properties

Test group	Tensile strength (MPa)	Elongation (MPa)	Hardness HRC
				Example 1	1920	13.5	57
Example 2	1908	14.1	55
				Example 3	1917	13.9	54
Comparative example 1	1776	11.2	45
				Comparative example 2	1795	10.4	43
Comparative example 3	1862	12.3	50
				Comparative example 4	1803	11.8	47
Comparative example 5	1625	8.6	34

Therefore, the golf head material provided by the invention has better mechanical property.

2. The products of examples 1-3 were processed into golf club heads (transition surface width w of 1.0mm, depth s of 0.03mm, length 6mm shorter than each side of the groove) according to the method of the basic example, and the club heads were still intact after 5000 shots on a gun at a ball speed of 50m/s, indicating that the material had good mechanical properties.

The above detailed description is specific to one possible embodiment of the present invention, and the embodiment is not intended to limit the scope of the present invention, and all equivalent implementations or modifications without departing from the scope of the present invention should be included in the technical scope of the present invention.