KR100789869B1 - THE CLUB'S HEAD COATED WITH METAL ALLOY's COAT INCLUDING TUNGSTEN CABIDE PARTICLES ON THE METAL HEAD FACE - Google Patents

Abstract

The metal composition (carbide metal composition) containing 70wt% ~ 80wt% of tungsten carbide (Wc) fine particles on the surface of the golf club metal head face is blasted and sprayed at high pressure and high speed with a high speed flame sprayer. The present invention relates to a club head capable of maximizing the backspin on the club head and preventing the rolling or slip of the ball at the sash head face by forming an alloy coating layer (carbide layer) on the metal head face surface.

Description

THE CLUB'S HEAD COATED WITH METAL ALLOY's COAT INCLUDING TUNGSTEN CABIDE PARTICLES ON THE METAL HEAD FACE}

Figure 1a is a club head formed alloy coating layer

Figure 1b is an enlarged cross-sectional view of the alloy coating layer is part A of Figure 1a

In recent years, the golf population has been increasing all over the world, and the golf population is increasing rapidly in Korea. This phenomenon is due to the fact that professional Korean golfers are doing well in large and small competitions in foreign countries and at the commercial level, such as huge prize money and the popularity of advertisements. However, golf is physically different from soccer, basketball, volleyball and other sports. It is more interesting because it is not limited to the conditions of the individual and it is a movement that is performed under the responsibility of the individual.

In addition, it is a social movement that can be enjoyed by all ages.

As a result, the demand for golf-related sports equipment has soared, and accordingly, manufacturers have made unremitting efforts to develop products with excellent functions ranging from the metal, which constitutes the drive or iron head, to the structure, the shaft of the metal or plastic, as well as golf balls. And new products are being released one after another, while pros and / or maybe golfers are trained in repeated practice as well as address and swingform corrections in the Indian language to improve their performance. We are competitively interested in having our products.

In view of the above situation, the present invention is more accurate and has no slip, and maximizes the back spin, so there is almost no run in the green, so that no runoff occurs out of the green, and comes to the shaft during the hit. The club head is coated with an alloy layer including tungsten carbide (Wc) on the golf club metal head face surface to feel the touch more smoothly. More specifically, the club head metal surface of the club head is grit blasted. After the surface is roughened by blasting, masking the coating exclusions, and then alloy metal powder including tungsten carbide powder is sprayed by HVOF to form an alloy layer on the blasted head face surface. Alloy layer containing tungsten carbide (Wc) on the surface of a golf club metal head face smoothed with a diamond wheel It relates to a head-coated Club.

Conventionally, the head of a club is cast using soft iron, stainless steel, or copper alloy, or recently, a golf club head is made of titanium or stainless steel, and a titanium alloy is plated and fused to the head base material. There is a head.

For example, Japanese Patent Application Laid-Open No. 63-229078 is made of high-purity pure iron with a purity of 99.9% or higher. Pure iron has good elongation and throttling ratio and excellent malleability. At the same time, the contact time is extended to have stability in the hitting direction.

Japanese Patent Application Laid-Open No. 8-206260 describes carburizing or nitriding an iron head cast from a soft iron material to form a hardened surface. Japanese Patent Laid-Open Publication No. 10-5376 describes structural alloy steel and stainless steel. The iron head made of titanium or titanium alloy steel has been introduced to increase the surface hardness by increasing the surface hardness by plasma carburizing or gas carburizing.

(페이스면에 형성된 U자홈)가 마모되어 골프공에 스핀이 걸리지 않는 결점이 있다.The iron heads made of soft iron materials introduced in Japanese Patent Application Laid-Open No. 63-229078 and Japanese Patent Application Laid-open No. Hei 8-20626 have lower hardness than stainless steel, titanium, or titanium alloy steel heads, Coming shocks are alleviated to give a soft feeling, but the wear resistance is low, making it easy to scratch or scar on the head.

(U-shaped groove formed on the face of the face) is worn out and there is a drawback that the spin is not caught on the golf ball.

In addition, the head carburized head or stainless steel or titanium (including titanium alloy steel) has higher hardness and better wear resistance than soft iron heads. Spin generation can be improved over wrought iron heads but is not satisfactory.

In addition, Korean Registered Utility Model Publication No. 20-0366637 (Registration Date: 2004.10.26) applies similar tungsten alloy steel to putter golf club head as in patent application, but it is applied to all putter golf club head. It is related to a putter head or club that increases weight by tungsten in the rain so that the lower center is kept constant so that the stability and square impact and the ideal head turn can be realized, and the stroke head can keep the co-orientation accurately without shaking. Its use is different from the head and its purpose is also different.

(페이스에 여러개의 가로로 길게 형성된 U자 홈)의 형태를 마모없이 오래 유지시켜 백 스핀(Back Spin)을 극대화하므로서 샷시에 특히 로프각도가 큰 짧은클럽의 헤드 페이스에서 발생하는 골프구의 슬립방지와 그린착지점에서 골프구의 런(Run)을 방지하므로서 보다 샷의 정확성을 갖게 하는 클럽헤드의 페이스 표면에 텅스텐 카바이드(Wc)를 포함하는 합금층이 코팅된 클럽해드를 제공함에 목적이 있다.The present invention is to improve the wear resistance by forming an alloy coating layer (carbide layer) by thermally coating the alloy powder including tungsten carbide on the surface of the club head face of the metal of wrought iron (pure iron), stainless steel and titanium or alloys thereof. At the same time formed on the metal head face

It keeps the shape of (U-shaped grooves formed on the face horizontally) for a long time without abrasion to maximize back spin, and prevents slippage of golf balls that occur at the head face of short clubs, especially with large rope angles, during shots. It is an object of the present invention to provide a club head coated with an alloy layer including tungsten carbide (Wc) on the face surface of the club head to prevent the run of the golf ball at the green landing point to have more accurate shots.

The present invention relates to a club head in which an alloy coating layer including tungsten carbide is formed on the surface of a head of a metal material made of soft iron (pure iron), stainless steel and titanium or other alloys. As follows.

Step 1 Process: Burlasting Process

Grit, carbon steel, shot, alumina, and other hard particles are blasted by compressed air or other method over the entire surface of the metal head face surface to remove dirt, oil, oxide film, etc. To form fine unevenness.

2 step process: alloy layer coating process on blasted surface

Ultrasonic speed that masks around the blasted surface of the metal head face and then discharges alloy powder containing tungsten carbide at high pressure (13Bar) from the chamber maintained at 3000 ℃ ~ 3750 ℃ specially designed for high speed flame sprayer (HVOF). The spray material is softened (SOFTEN) and melted by the collision energy using the heating acceleration energy of the jet stream of the jet stream so as to form an extremely dense film.

The alloy coating layer fused to the metal head face surface is immediately solidified (cured) to form an alloy coating layer, the alloy coating layer can be formed up to 0.05mm ~ 1mm.

3 step process: surface grinding polishing process

The alloy coating layer formed in the process is subjected to surface treatment by grinding and polishing the alloy coating surface using a diamond wheel.

Since the difference between the metal and alloy coating layer of the head material is a big difference in the coefficient of thermal expansion between the original material and the alloy coating layer of the head material, large shear force is repeatedly generated between layers due to shrinkage and elongation due to temperature change. The grit blasting process is essential because the unevenness is formed in the base material so that the strong fusion bonding force can cause separation between layers.

In addition, an example of an alloy coating layer composition including tungsten carbide in a two-step process, for example, 80wt% tungsten carbide alloyed with 12wt% cobalt by weight, Ni 12.0wt%, Cr 4.2wt%, Fe 1wt%, Si 1.3wt%, Al 0.7 wt%, B 0.7 wt%, C 0.1 wt%, another example is tungsten carbide 70 wt%, Ni 18 wt%, Cr 5.5 wt%, Fe 1.8 wt%, Si 2 wt%, Al 1.5 wt%, B 1 wt An alloy composition consisting of%, C 0.2wt% is used. The spray material softens the spray material with tremendous collision energy by discharging the diamond jet high speed flame sprayer (HVOF) under the high pressure of the specially designed 13Bar, using the heating acceleration energy of the ultrasonic jet flow (Mach 5 ~ 7). And melt and collide to form an extremely dense alloy coating layer on the metal head face surface.

As mentioned above, because the flying speed of the thermal spraying material is enormous speed, the contact time with air is extremely instant, so there is little change of physical properties (oxidation, contact with moisture), and an alloy coating layer similar to cemented carbide can be obtained. It can be called a cemented carbide layer, which has a hardness of 8-9 and can be called an alloy coating layer having excellent wear resistance.

In the above, the addition of molybdenum to tungsten carbide in advance is more advantageous for preventing temper embrittlement, improving permeability, high temperature strength and hardness, and the particle size of tungsten carbide is very important and the particle size range is -230mesh + 17㎛ ( The temperature during melt spraying in the range of -63 + 17 μm is at least 3000 ° C. to 3750 ° C., and metal compositions other than tungsten carbide are Ni (melting point: 1455 ° C), Cr (melting point: 1900 ° C), Fe (melting point: 1536 ° C), Si (melting point: 1410 ° C), Al (melting point: 660 ° C) are sprayed in the molten state to be fused to the blasted surface, and tungsten carbide has a melting point of 2780 ° C. The ruler is sprayed at high speed in a softened state and fused together with other melts on the blasted side.

In this case, when the tungsten particles become too fine, they are fused with other metal compositions in a molten state, and thus, fine unevenness does not occur in the metal coating layer, resulting in a poor backspin effect. When the particles become too large, the surface of the coating layer becomes too rough, and the overall strength of the metal layer is reduced. Problems with the back coating layer tissue may damage the golf ball and the distance can be reduced. This is also related to the amount of tungsten carbide used. In addition, the composition ratio of the metal coating layer composition may be adjusted to some extent and does not significantly affect the metal coating layer even when replaced with a metal having the same characteristics.

For example, it is possible to reduce the chromium having temper resistance, corrosion resistance, and abrasion resistance, increase the composition ratio of the temporal stability, high hardness, and wear resistance of molybdenum, or add manganese (Mn) having the same properties, and other alloy coating layers. Substituting or adding a portion of the metal with properties similar to those of the composition does not significantly affect the function of the alloy coating layer (carbide hardening) including tungsten carbide formed on the head face, and ultimately the function of the alloy coating layer by the amount and particle size of tungsten carbide It can be seen as a great influence on. In addition, when the composition ratio of tungsten carbide is more than 80wt%, the hardness increases, but the ductility of the metal coating layer and the impact resistance are weak, causing problems in the tissue, and up to 70wt%, including the backspin function due to the hardness and wear resistance required by the present invention. One can get all the functions.

Alloy coating layer prepared by the above method, as shown in Figure 1a and b as a smooth surface having extremely fine unevenness, has a collection hardness in the range of 8 to 9, excellent wear resistance and a sense of weight has a sash stability and the face surface scratches or damage On the functional surface, the back spin occurs due to the formation of high hardness fine irregularities on the face surface, so no run is generated in the batting. As the coating layer is hard, the flying distance is also increased because it does not move greatly in the position where it is, and does not roll down to roughs, bunkers or ponds around the green.

(wedge)에 형성된 스코어라인(U자형의 홈)이 마모없이 오래 유지되므로서 백스핀의 기능을 반영구적으로 유지시킬 수 있는 클럽해드라 할 수 있다.In addition, when attacking the green with a large loft angle club, especially when the fairway is wet, the golf ball can not be pushed or slipped on the face surface to reduce the flying distance and maintain a constant distance. In addition, the alloy coating layer has excellent wear resistance

The scoreline (U-shaped groove) formed on the wedge is maintained for a long time without abrasion, and can be a clubhead that can maintain the backspin function permanently.

, (4)는 페이스, (5)는 헤드, (6)은 합금층이다.1A and 1B, reference numeral 1 denotes a club, 2 denotes a shaft, and 3 denotes a

, 4 is a face, 5 is a head, and 6 is an alloy layer.

The club head according to the present invention has a metal coating layer including tungsten carbide having a fine unevenness on the face surface, which is used for short games having a large back angle as well as an excellent back spin function. It can prevent slipping or slipping of the club face, increase the distance and always ensure the correct distance. In addition, 10 professional prospective students to experiment with the current production of the club head according to the present invention as a result of the reaction is excellent, so the production orders are rushing, can be expected to create a great demand in the future.

Claims (4)

Metallic clubhead face surfaces made of wrought iron, pure iron, stainless steel, titanium or other alloys with tungsten carbide in the range -230mesh + 17 μm (-63 + 17 μm) on the surface of the 24 mesh grit-burst surface. The alloy head is coated with an alloy layer containing tungsten carbide on the golf club metal head face which is sprayed with a high speed flame sprayer (HVOF) to form an alloy coating layer and then ground with a diamond wheel. delete The method of claim 1, wherein the high-speed flame spray treatment is to maintain the internal temperature of the chamber at 3000 ℃ ~ 3750 ℃ and spraying the spray material (alloy composition) at a spraying speed of 1350m / sec ~ 2100m / sec to form an alloy coating layer Club head with alloy layer containing tungsten carbide on club metal head face The alloy composition of claim 1, wherein the alloy composition containing tungsten carbide is 80wt% tungsten carbide, 12wt% Ni, 12wt% Cr, 4.2wt% Fe, 1wt% Fe, 1.3wt% Al, 0.7 wt% Al, 0.7wt% B , Club head coated with alloy layer containing tungsten carbide on the golf club metal head face, characterized in that consisting of 0.1wt% C

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