CN1369320A

CN1369320A - Golf club head

Info

Publication number: CN1369320A
Application number: CN01103800A
Authority: CN
Inventors: 陈晴祺
Original assignee: Individual
Current assignee: Chen Xin
Priority date: 2001-02-15
Filing date: 2001-02-15
Publication date: 2002-09-18
Anticipated expiration: 2021-02-15
Also published as: CN1232321C

Abstract

A golf club head features that its batting surface is made up of the alloy steel, which contains C (0.3 wt.%), Si (0.2), Mn (0.2), P (0.2), S (0.02), Cr (10.5-11), Mo (1.8-2.2), Ni (9.5-10.5), Ti (0.9-1.2), Al (0.05), Cu (0.1), Nb (0.3), B (0.3), N (0.01), V (0.1), W (0.1) and Fe (rest) and is prepared through vacuum smelting twice.

Description

Golf driver head

The invention relates to a kind of golf driver head, particularly about a kind of golf driver head with preferable balling effect.

The golf driver head of commonly using (comprising rod and iron) is with stainless steel mostly, as SUS630 or SUS431 (AISIA (AISI) standard 630 types and 431 types), and made with the casting (dewaxing process) of precision.But the density of this kind material is bigger, and intensity is lower, therefore the bar head made from above-mentioned materials, its wall thickness must reach more than a certain thickness, just can reach the requirement of strength of bar head: and the weight that requires the bar head must not be too heavy bar head key points in design under, cause the volume must not be too big with the made bar head of above-mentioned materials: so the preferable striking point on the ball scope on the bar head batting surface can significantly dwindle, its result causes the probability of batting failure to increase.

The bar head of the also useful titanium alloy manufacturing of industrial community, the density of titanium alloy is little than stainless steel, and intensity is suitable with stainless steel; Therefore, it is less to produce the probability of the problems referred to above with the bar head of titanium alloy made; But titanium alloy is quite expensive, and needs special vacuum fusion cast machinery to make, and the cost of manufacturing is significantly increased.

Main purpose of the present invention is to provide a kind of golf driver head, can strengthen the volume of bar head under the prerequisite that does not increase the nose heave amount of bar, the scope of the preferable striking point on the ball of bar head is increased, to improve the success ratio of batting.

Another object of the present invention is to provide a kind of golf driver head, its material cost is lower.

For reaching above-mentioned purpose, according to golf driver head provided by the present invention, include a striking surface (Face), and this striking surface is to include a steel alloy with following moiety: the carbon of 0.03wt% (C) at the most, the silicon of 0.2wt% (Si) at the most, the manganese of 0.2wt% (Mn) at the most, the phosphorus of 0.2wt% (P) at the most, the sulphur of 0.02wt% (S) at the most, the chromium of 10.5-11.0wt% (Cr), the molybdenum of 1.8-2.2wt% (Mo), the nickel of 9.5-10.5wt% (Ni), the titanium of 0.9-1.2wt% (Ti), the aluminium of 0.5wt% (Al) at the most, the copper of 0.1wt% (Cu) at the most, the niobium of 0.3wt% (Nb) at the most, the boron of 0.3wt% (B) at the most, the nitrogen of 0.01wt% (N) at the most, the vanadium of 0.1wt% (V) and the tungsten of 0.1wt% (W) at the most at the most, all the other are roughly iron (Fe); The metallurgical processing procedure of this steel alloy needs the vacuum melting through two passages, makes this steel alloy have one mainly by metal quality that marquensite constituted.

The present invention is further illustrated below to lift a preferred embodiment now, wherein:

The golf driver head that the embodiment of the invention provided includes a striking surface (Face) and a rod head noumenon; For reaching goal of the invention of the present invention, this striking surface is to include a steel alloy with following moiety: the carbon of 0.03wt% (C) at the most, the silicon of 0.2wt% (Si) at the most, the manganese of 0.2wt% (Mn) at the most, the phosphorus of 0.2wt% (P) at the most, the sulphur of 0.02wt% (S) at the most, the chromium of 10.5-11.0wt% (Cr), (Mo) of 1.8-2.2wt%, the nickel of 9.5-10.5wt% (Ni), the titanium of 0.9-1.2wt% (Ti), the aluminium of 0.5wt% (Al) at the most, the copper of 0.1wt% (Cu) at the most, the niobium of 0.3wt% (Nb) at the most, the boron of 0.3wt% (B) at the most, the nitrogen of 0.01wt% (N) at the most, the vanadium of 0.1wt% (V) and the tungsten of 0.1wt% (W) at the most at the most, all the other are roughly iron (Fe).

The metallurgical processing procedure of above-mentioned steel alloy is to utilize high-tech metallurgical technology institute melting (vacuum dissolving (VIM) and vacuum are heavily refined (VAR)), with the impurity in this steel alloy of abundant removal, and obtains the steel alloy of a pure high strength, high tenacity; The metallurgical processing procedure of this steel alloy needs the vacuum melting through two passages on practice, the smelting temperature in first road is 900-1100 ℃, this steel alloy under this temperature after the processing of γ solutrope, it is organized as marquensite (martensite)+residual Austenite iron (austenite), its hardness is HRC 25-38, and tensile strength is 88-125kgf/mm ²The smelting temperature in second road is 450-565 ℃, and after ageing treatment, it is organized as fiber crops by diffusing iron+precipitate to this steel alloy under this temperature, removes that its hardness is HRC 46-53 behind the precipitate, and tensile strength is 155-189kgf/mm ², make this steel alloy have one mainly by the fiber crops metal quality that day diffusing iron constituted; After this closes the above-mentioned thermal treatment of Diamond Sutra, make the thickness of this striking surface can be made as 1.6-2.2mm, and this steel alloy can be used for constituting at least a portion in the preferable batting zone on this striking surface.

This rod head noumenon can aforesaid steel alloy or SUS17-4 PH or SUS15-5 PH stainless steel or pure titanium, titanium alloy, aluminium alloy etc. constitute, its manufacture is via microcast process and to use sheet material to be bumped into above-mentioned metallic substance through stamping surface made.

The above golf driver head provided by the present invention can be made as the bar head of Wooden golf and iron.

The contriver is with golf driver head of the present invention, and actual fabrication goes out sample (contriver is with its called after CH-1), and through a series of material and the performance test of hitting, its result is summarized as follows:

At first be that material character detects, makes this steel alloy (CH-1) of golf club head batting surface of the present invention and generally be used for making golf driver head stainless material (SUS630, SUS431), its basic material character more as shown in Table 1:

Table one steel alloy of the present invention with commonly use stainless material character relatively

Annotate: CH-1 is the employed steel alloy of bar head of the present invention

Wherein we find, bar head material of the present invention (CH-1) is at tensile strength (Tensilestrengh, kgf/mm ²), yield strength (Tensile strengh, kgf/mm ²) and hardness (Hardness, performance HRC) all are much better than and commonly use material; And at density (Density, g/cm ³) aspect, then with the minimum (7.715g/cm of CH-1 of the present invention ³); Therefore, the thickness of its striking surface of bar head of the present invention only can be between 1.6-2.8mm, can bear the surging force of batting and can not cause depression or break (generally being required to be more than the 2.7mm at least with SUS431 or made its thickness of bar head batting surface of SUS630); And after this striking surface thickness reduces, under the weight prerequisite identical with general bar head, the area of this striking surface can be increased, and the scope in preferable batting zone also increases thereupon on the striking surface, makes the flight course that hits ball comparatively stable; Perhaps the weight distribution that will alleviate reduces the center of gravity of bar head in the appropriate location of bar head bottom, and the moment of inertia with convenient swing batting or raising bar head reduces the failure of hitting.

Next, the golf driver head of striking surface is made in contriver's attempt with titanium alloy (β Ti 15-5-3) with golf driver head of the present invention (CH-1) challenge; Through Japanese MARUMAN GOLF company above-mentioned two kinds of golf driver heads are tried to beat evaluation test (this test is that confidentiality is tested), its test event includes: flying distance sense, directivity, trajectory tendency, operability, six of the sound and the senses of playing ball etc. of playing ball, each full marks is 10 minutes, and its examination knotting fruit as shown in Table 2.

Table two golf driver head of the present invention is beaten evaluation result with the examination of commonly using the bar head

Annotate: CH-1 is the employed steel alloy of bar head of the present invention

Beaten in the scoring by the every examination of table two and to find: golf driver head of the present invention (CH-1) is commonly used bar head (15-5-3) what 6 examinations beat that evaluation all is higher than the titanium alloy striking surface, especially with sound and the evaluation the highest (scoring is respectively 7.7 and 7.0) of playing ball and feeling of playing ball, its overall evaluation is also preferable with golf driver head of the present invention (CH-1).

Sum up above institute opinion, golf driver head provided by the present invention has the following advantages:

1. because the material behavior of high strength and high tenacity, its batting of golf driver head of the present invention The thickness of face can be reduced to 1.6-2.8mm (thickness of commonly using striking surface is approximately 2.7-2.8mm), And the minimizing of striking surface thickness can be lowered simultaneously the weight of bar head, and can with the distribution of weight that alleviates in The position that bar head bottom is suitable lowers the center of gravity to increase the moment of inertia of bar head, makes steady when hitting Qualitative and success rate increases.

2. because littler (density of this steel alloy among the present invention is 7.715g/cm in order to the density of making golf club head batting surface material of the present invention³, commonly use material, be respectively 7.8g/cm such as the density of SUS630 and SUS431³And 7.75g/cm³), add the 1st described The characteristic that reduces of striking surface thickness, make golf driver head of the present invention can with commonly use the nose heave amount of bar Under the identical situation, with the volume increasing of bar head, and the area of increase striking surface, also improve simultaneously The scope of the better hitting area on this striking surface, make the ball flight course that hits comparatively stable, with The time also increased the moment of inertia of bar head.

3. golf driver head of the present invention is cheaper than the material price of commonly using titanium alloy bar head, and provides than the titanium alloy bar good effect of hitting (the evaluation test result is beaten in the examination that seeing also table two provides) on first watch.

Claims

1. golf driver head, this bar head includes a striking surface, it is characterized in that, and this striking surface is to include a steel alloy with following moiety: the carbon of 0.03wt% at the most, the silicon of 0.2wt% at the most, the manganese of 0.2wt% at the most, the phosphorus of 0.2wt% at the most, the sulphur of 0.02wt% at the most, the chromium of 10.5-11.0wt%, the molybdenum of 1.8-2.2wt%, the nickel of 9.5-10.5wt%, the titanium of 0.9-1.2wt%, the aluminium of 0.5wt% at the most), the copper of 0.1wt% at the most, the niobium of 0.3wt% at the most, the boron of 0.3wt% at the most, the nitrogen of 0.01wt% at the most, the vanadium of 0.1wt% and the tungsten of 0.1wt% at the most at the most, all the other are roughly iron;

The metallurgical processing procedure of this steel alloy needs the vacuum melting through two passages, and its tissue is treated to marquensite+residual Austenite iron through 900-1100 ℃ of γ solutropeization; After 450-565 ℃ of ageing treatment, it is organized as marquensite+precipitate, makes this steel alloy have one mainly by metal quality that marquensite constituted.

2. golf driver head according to claim 1 is characterized in that, wherein this striking surface has one at least by preferable batting district that this steel alloy constituted.

3. golf driver head according to claim 1 is characterized in that, wherein this golf driver head is to be a metal wood club head.

4. golf driver head according to claim 1 is characterized in that, wherein this golf driver head is to be an iron club head made of iron.

5. golf driver head according to claim 1, it is characterized in that, wherein this golf driver head also includes a rod head noumenon, and this rod head noumenon can be made by this steel alloy or SUS17-4PH or SUS15-5 PH stainless steel or pure titanium or titanium alloy or aluminium alloy.

6. golf driver head according to claim 5 is characterized in that, wherein this rod head noumenon can by microcast process and to use sheet material to be bumped into the formation metal of this rod head noumenon through the stamping surface external form made.

7. golf driver head according to claim 1 is characterized in that, wherein the tensile strength of this steel alloy is 15.5-18.9kgf/mm ²

8. golf driver head according to claim 1 is characterized in that wherein the hardness of this steel alloy is between HRC46-53.

9. golf driver head according to claim 1 is characterized in that, wherein the thickness of this striking surface is 1.6-2.8mm.