TW514544B - Method of thermal treatment for golf club head after molding - Google Patents

Abstract

A method of heat treatment for a golf club head after molding mainly comprises, after integrally casting a golf club head (including the body, striking face and neck of a golf club head), using a heat treatment to alter the hardness of metal; subjecting the whole golf club head to an annealing treatment to reduce its hardness for the convenience of the processing of an intermediate process (e.g. drilling); subjecting the whole golf club head to a quench and a tempering treatment to increase its hardness; using a high-frequency heat treatment to locally treat the neck of the golf club head to soften the neck for the convenience of adjusting the angle between the neck and the striking face, and enabling the neck with shock absorption properties.

Description

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The present invention relates to a method for heat treatment of a golf club head after molding: in particular, after casting a golf club head, heat treatment can be used to change the characteristics of metal hardness. The entire golf club head is annealed first to reduce its Hardness, which is conducive to the processing operations of intermediate processes (such as turning holes), and then the entire golf club head is quenched and tempered to increase its hardness, and the neck of the golf club head is subjected to local high frequency waves. The heat treatment makes the neck soft, which is convenient for those who can easily adjust and correct the angle between the neck and the striking surface, and make the neck have shock absorption effect. According to the 'conventional' golf club head to increase the hardness of the striking surface, it will be made into two processes; among them, the material is made of each shape, read: make the open surface, and the striking surface is selected with a similar (such as Titanium metal) is cast to form the reserved open surface; therefore, the main body and the striking surface are made of different materials and the striking surface increases welding difficulty. It is made by casting, and the body of the golf club head and the striking surface (including the neck) are all made of stainless steel, and a metal material with higher hardness is reserved on the striking surface. Then the welding surface is welded to the body. The entire manufacturing process is complicated. It is made of different materials, and it is not easy to connect the two together. Therefore, the lack of materials is partly to solve the above-mentioned conventional golf club heads. Lost in molding and manufacturing, although some industry players have selected high hardness metal materials to make golf club heads (including the striking face and neck); but it can solve the lack of the conventional golf club heads. However, it is also cost-effective and the hardness of the golf club head after casting will cause the processing of intermediate processes (such as turning holes); especially, it is difficult to adjust the angle between the manufacturing and striking surfaces. Gao Chengzhi's materials >

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丄 丄 i 90132905 5. Description of the invention (2) The purpose of the present invention is to change the characteristics of the hardness of the metal in the manufacturing process. The treatment can change the hardness of the metal and treat it to reduce its hard work. Increase the hardness, and increase the treatment, so that the neck can change the angle between the faces, and make the neck related to the invention is Daffa's, and then cooperate with the following types of golf club stainless steel j , Town (Ni, young 1% 1 · 5 ~ 5 ~, niobium 0 · 15. The present invention uses a golf club head to include high, and the rationale method and process for achieving the purpose of the invention are: · Correction is improving The above conventional golf club heads are lacking in terms of terms, and a heat treatment can be used to change the golf club head's longitude by using the characteristics of heat after the golf club head is cast and molded, which is beneficial to the intermediate process (such as a car Hole) The processed golf club head is quenched and tempered, and the neck of the golf club head is subjected to local high frequency waves. 0V \ soft, so that it is easy to adjust and correct the neck and the impact part with shock absorption. To the above purpose The technical means used and the methods used are as an example of the use of stainless steel 17-4 as an integrated cast head (according to, 17-4 is the market code for 炻 lit, mainly due to the contained chromium (Cr> is 4% 为名; The detailed composition is carbon (c) bis | Meng (Μη) 1%, phosphorus (p) 0.04%, sulfur (S)%, nickel (Ni) 3. 5 ~ 4. 7 %, Copper (Cu) 4 5%), the details are as follows: Stainless steel 17-4 is the body, striking surface and neck of the golf club head that is integrally cast and formed by the material; it is used after the golf club head is formed. Heat treatment (1) Annealing treatment: First, the entire golf club head which is cooled to normal temperature after being integrally molded is placed in a heating furnace, and heated at a temperature of about 800X: for about 10 hours, and then left to stand The furnace is naturally cooled to normal temperature to reduce its hardness to HRC27-HRC30 (the hardness before unannealed is about

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HRC34) to facilitate the processing of intermediate processes (such as turning holes). (2) Quenching treatment ... The lathe will be annealed and finished with intermediate and intermediate processes). The entire golf club head is then placed in a heating furnace and heated at 1 030 ° C for about 5 hours to solidify the golf club head. Then it is taken out of the furnace and rapidly cooled with nitrogen to increase its hardness. (3) Tempering treatment: Put the entire quenched golf club head into a heating furnace, and heat it at a temperature of about ^; ^; for about 5 hours, so that the entire

The golf club head is precipitated and hardened, then it is taken out of the oven and cooled naturally. ', V (IV) High-frequency local heating treatment: Temper the golf club head with high-frequency heating treatment, apply a temperature of about 8 0 0 for about ο seconds, and then leave it alone Cooling to reduce neck ς 2 = C25 ~ HRC28, so that the neck is softened, so that it is easy to adjust the angle between the positive neck and the striking surface, and the neck has a shock absorption effect. It can be known from the examples that the present invention mainly deals with the treatment of the club head. U Reduces the hardness of the entire golf ball after the body casting molding = the body of the golf club head, the striking face and the neck). Car hole); then use hardening treatment to mention the hardness of Erben ^ 1 golf club head; then use tempering treatment, so that the entire Er Fu Bo = = precipitation hardening, and then use high frequency heat treatment, The high neck is locally heated to reduce the hardness of the neck. The horn sound: softens to facilitate easy adjustment between the neck and the striking surface. ^ 4 Makes the neck with shock-absorbing neodymium. 514544 November 〇

-Case No. 90132665 V. Description of the invention (4) In summary, since the heat treatment method and process of the present invention are implemented after the shaping of the golf club head, it is compared with the conventional Gaul break _ = body and striking surface Separately formed and then welded and combined to: reduce the difficulty; 1 because the present invention in ϊΐ :, ίί ί fire treatment '"reduces the hardness of the entire golf talent head, it can indeed provide the processing of intermediate processes (such as turning holes) Ease. I = quenching i and tempering, can increase the hardness of the entire golf club head 'It can not only make the striking surface reach the required hardness, but also the hardness of ::: Ershi club head Raised to the same hardness as the striking face, and the solidity and striking effect of the Yulf club head; #, using the high-end heat treatment to reduce the hardness of the golf club head, it will be able to ί ί ί f striking face It ’s easier to adjust and correct the angle. 'Make it more easy to adjust and correct the habit and posture of playing ball, and it will help to correct the ball. \ The player who releases the fruit. Therefore, the present invention does have significant practicality and Progress: I i is indeed the inventor of this case R & D initiative, while Cheng has met the special requirements of the invention, to apply the law of love, and pray for the gift of prayer patent.

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Claims (1)

) 14544 Case No. 90132665 VI. Application for Patent Scope 9: Amend a heat treatment method after forming a golf club head, which is based on the golf club head (including the body, striking surface and neck of the golf club head) _body casting molding Then, it is subjected to the following heat treatment: (1) Annealing treatment: First, the entire golf club head which is integrally cast and cooled to normal temperature is placed in a furnace, and then subjected to a temperature of about 800 ° C, and then allowed to stand. It is cooled in the furnace to normal temperature drop JJRC27-HRC30, in order to facilitate the addition of intermediate processes (such as car holes) (2) Quenching treatment: the annealing treatment will be completed and completed = the whole; the golf club head is repositioned Into the heating furnace, apply smelting, then take it out of the furnace and quickly lift it with nitrogen, 2 hardness JJLRC40; | From the branch Aqi (3) Ξ ΐ treatment: the entire quenched golf club head is placed again In the furnace, the degree is increased, and the Guming 5 club head is precipitated and hardened, and then it is taken out of the furnace and: A :: (four) 咼 Zhoubo local heating treatment: Tempering treatment of ancient 22, said The neck is heated by the south frequency , Apply about 8 0 ° r, cup head, and then let it cool ^, so that the neck is softened, to: Π, the angle between the neck and the striking surface, and have ::-school . Dan has a shock absorption effect Page 9