460591 A7 --------- 五、發明說明（I ) 本發明得'關於-種低密度高延展性鐵基之高爾夫球鐵 桿頭合金材料，尤指一種具有低密度、高延展及高防銹特 性，且尤適合用於製作高爾夫球之鍛造鐵捍頭，以達到高 強度、高延展性、高防銹性及優良的鍛造表面等要求之實 用性材料者。 Λ 合金是指「在一種金屬裡面，加入一種或一種以上之 他種金屬或非金屬，所形成具有金屬特性的物質」。在學 術上，金屬是指純金屬元素而言，而所謂「純」金屬乃— 種相對的說法而已，其中多少會存在微量元素或化合物， 稱之為雜貝，反之若是為了某些特殊目的而加入或保留的 兀素則稱為「合金元素」，所以一般所稱之純金屬是指非 故意加入合金元素之精煉元素。 當純金屬添加他種金屬或非金屬合金元素而配製成合 金後，其本身的性質也會發生變化，例如熔點降低、強度 升尚、延展性降低、電阻增大、導熱度降低、熱處理性能 增進'耐蝕性變化及磁性變化等等，也因為純金屬配製成 合金後，其機械、物理及化學性質均獲得改善，因此可隨 著機械、器具之設計需要，選用適當的合金元素並控制其 含量，以配製成合用的合金材料。 例如’工業上經常利用的高強度低合金鋼（丨.丨)及 合金工具鋼即是，其中，高強度低合金鋼是以添加2%以内 之》里合金元素’如Ti、v ' Nb，而獲得高強度為其特 色’且廣為運用於公路及鐵路橋樑、鐵路貨客車廂、大客 車車體、農業機械或挖土工具等。此外，合金工具鋼則是 厂艮尺又边用中國國家標:芦（CNS)A4規格⑵公楚） —- ---------------^-------Ί 訂--------綠 (請先閱讀背面之注音？事項再填寫本頁〕 46〇591 A7 H7 五460591 A7 --------- V. Description of the Invention (I) The present invention is about a kind of low density and high ductility iron-based golf iron head alloy material, especially a kind of material with low density, high ductility and High rust resistance, and it is especially suitable for the production of golf iron forged iron head, to achieve high strength, high ductility, high rust resistance and excellent forged surface and other practical materials. Λ alloy refers to "a substance with metallic properties formed by adding one or more other metals or non-metals to a metal". Academically, metal refers to pure metal elements, and the so-called "pure" metal is just a relative term. How many trace elements or compounds will be present in it, it is called miscellaneous, and if it is for some special purpose, The elements added or retained are called "alloying elements", so the pure metal is generally referred to as the refining element that is added unintentionally. When pure metals are added to other metals or non-metal alloy elements to prepare alloys, their own properties will also change, such as lower melting point, higher strength, lower ductility, increased resistance, reduced thermal conductivity, and heat treatment performance. Improve the change of corrosion resistance and magnetic change, etc., because the mechanical, physical, and chemical properties of pure metals are improved after they are formulated into alloys. Therefore, appropriate alloy elements can be selected and controlled according to the design needs of machinery and appliances. Its content is formulated into a suitable alloy material. For example, 'high-strength low-alloy steel (丨. 丨) and alloy tool steel often used in the industry are among them. Among them, high-strength low-alloy steel is added with alloying elements such as Ti, v' Nb within 2%, It is characterized by its high strength and is widely used in highways and railway bridges, railroad freight cars, coach bodies, agricultural machinery or earthmoving tools. In addition, the alloy tool steel is a factory ruler and uses the Chinese national standard: reed (CNS) A4 specification (⑵ 公 楚) —- --------------- ^ ----- --Ί Order -------- Green (Please read the phonetic on the back? Matters before filling out this page) 46〇591 A7 H7 5
«添加卜^，等合金元素，使料合金 == 匕物’使其具有硬化深度較深，耗及对 …皿軟化的特性，—般可作為㈣k具或熱加工模且 是耐受衝擊、耐磨之場合。 …、次 的高爾夫球具包含有木桿桿頭（_d)、鐵 杯杯碩、劈起桿桿頭（PW)、砂坑桿桿頭⑽、推桿桿 頭（putter)、桿身（分為金屬桿與碳纖維桿）、勝套 (為吸收球頭與球桿接觸㈣摩擦力與美觀）及橡勝材質 之握把。-般而言，高爾夫球鐵桿係泛指鐵桿、劈起桿及 砂坑桿。鐵桿主要用以將球擊至目標點，其特徵為球飛行 距離比木桿稍短’但可將球打得較高，且方向容易掌握。1 號鐵桿長約39.5英十桿藝度14度，2號桿以後桿身 長度以0.5英吋遞減，桿頭斜度以4度遞增，使用者可依 目標距離選擇適合的球桿擊球„此外，近年來，轻鐵桿 兼具傳統木柃及鐵桿優點，並兼具長距離打擊與準確性打 擊丄亦有將鐵桿頭製成空心之設計出現。鐵桿尚包含有在 果嶺周圍作近距離切球用的劈起桿（pi iching如如幻及用 於沙坑擊球的沙坑桿〔Sand Wedge)，兩著皆屬於挖起桿， 這類球桿因桿頭較重，斜度較大，所以容易將球擊高及短 距離的控球性。 請 先 讀 背 1¾ 之 注 意 事 項 再 填 寫 頁 k ΐτ k 目前高爾夫球鐵桿頭之製造方.式主要為精密脫蠟鑄造 法與鲜X U加工法兩種，請配合參看第一圖所示，另外也有 少部份利用表面鍍層（如鍍鎳、鈷、鑽石）或鑲板加工。 王肢而° ’知猪脫蝶鑄造法的成本最便宜，但鍛造加工法 本紙“度適用 460591 Λ7 〜------- • _ . _ 五、發明說明（>) 具有較多方面的優點。而工業上現行使用於製作鐵桿頭之 I I — — — — —II — Ιί --- (請先閱讀背面之注意事項再填寫本頁) 精密脫躐鑄造法與锻造加工法的合金材料機械性質係如第 二圖所示。 高爾夫球鐵桿頭之設計趨勢，主要是為成功的擊球並 有良好的擊球點，其主要設計方向如下： 1·球頭大型化：包括木桿頭體積在28〇 cc〜3i〇cc 間’甚至可達到350cc，或有大尺寸（〇versize)之鐵桿，其 特點為增大球桿之擊球甜蜜區，以提高成功的擊球機率， 及增加擊球距離。 2. 低重心：為達穩定的揮擊與擊球點，並增加扭轉慣 性、提南擊球距離，降低重心乃為最新趨勢。 3. 低工氣阻力及凹背式強化打擊面設計：為達穩定的 揮擊與擊球點並降低扭轉能量損失，最近的發展趨勢為電 腦設計改變球桿頭形狀，以減低風阻係數並改變不同的重 人甜萤區甚至不淪是鐵桿頭或木桿頭之打擊面均利用 高壓擠入方式製作打擊面。 低重心、低空氣阻力及強化打擊面雖可達成功擊球與 良好擊球點 '增加扭轉慣性、提高擊球距離等目的，但整 體而言’以高爾夫球鐵桿頭來說，由於其本身形狀變化較 夕’所以要求用w製作鐵桿頭的纟金材料必須兼具有高強 度及高延展特性，同時需具備有耐钮性。但是目前工業用 的合金材料並不能完全合乎鐵桿頭的性能要求，以鈦合金 與，斤出不銹鋼來說，其雖具有耐飾性，但延伸率或種^擊值 亚不理想’又.以304不銹鋼來說，其雖然延伸率約可達 度—----- 46〇591 A7 B? 五 發明說明（ 〜W ’但強度仍嫌不足，所以目前仍以锻造軟鐵咖 頭之=sr85ksl抗拉強度及3G%〜35%延料為製作鐵桿 負之較么素材，惟其鍛造後之耐蝕性仍稍嫌不足。 =此’在南爾夫球桿規格是以桿頭之重量為定的因素 下右能開發低选度、面延伸率或高物性且具有—定強度 之新素材，則低密度將可使球頭設計空間變大，適當的強 度將使擊球距離穩定或減少打擊面厚度以增加設計空間， 高的延伸率或韌性則可使控球性能增加，如此可使=爾夫 球鐵桿頭之打擊效果發揮至最理想。而就目前高爾夫球桿 製造業的同共經驗，最.佳的鐵桿頭製作合金材料之抗拉強 度應為锻造軟鐵之L0〜15倍左右，即抗拉強度約 〜120ksi，降伏強度約55ksi〜7〇ksi，延伸率必須超過 40%且愈高愈好，以及低於7. 9g/cm3的密度’同時若能具 備耐蝕性，則可增加其設計空間，以製作出打擊性能最j圭 的尚爾夫球鐵桿頭或空心鐵桿頭。 近一 '一十年來，鐵一鋁一猛合金鋼系列經過國内外 專家學者廣泛的研究，顯示不同的合金設計能使鐵一鋁— 錳合金鋼分別具有高強度、高韌性' 耐低溫、耐高溫及耐 磨耗等特性，下列論文對這些性質均有詳細的描述。«Add ^^, and other alloying elements, so that the material alloy == dagger object 'to make it have a deeper hardening depth, which consumes the characteristics of softening of the dish, which can generally be used as a tool or a hot working mold and is resistant to impact, Wear-resistant occasions. …, The golf equipment includes a wood club head (_d), an iron cup cup, a split head (PW), a bunker head ⑽, a putter head (putter), and a shaft (point Metal rods and carbon fiber rods), win sets (to absorb the contact between the ball head and the club, friction and beauty) and rubber grips. -Generally speaking, golf irons refer to irons, wedges and bunkers. The iron is mainly used to hit the ball to the target point. It is characterized by the ball's flight distance is slightly shorter than the wood 'but it can hit the ball higher and the direction is easy to grasp. The No. 1 iron is approximately 39.5 inches in length and 14 degrees in art. After the No. 2 shaft, the length of the shaft decreases by 0.5 inches, and the head slope increases by 4 degrees. The user can choose a suitable club to hit according to the target distance. In addition, in recent years, light irons have the advantages of both traditional wooden clogs and irons, as well as long-distance strikes and accuracy strikes. There are also designs that make iron heads hollow. Irons also include short distances around the green. Pitching clubs for cutting balls (such as the magic and sand wedges used for bunker batting) are both wedges. These clubs are heavier and have a lower slope. Large, so it is easy to hit the ball high and short-distance ball control. Please read the notes of 1¾ before filling in the page k ΐτ k The current manufacturing method of golf iron heads. The formula is mainly precision dewaxing casting method and fresh XU There are two kinds of processing methods, please refer to the first figure, and there are also a small number of surface processing (such as nickel plating, cobalt, diamond) or panel processing. Cheap but forged paper method "degree applicable 460591 Λ7 ~ ------- • _. _ 5. The invention description (>) has many advantages. And the industry currently used in the production of iron heads II — — — — —II — Ιί --- (Please read the precautions on the back before filling out this page) Mechanical properties of alloy materials for precision cast-out casting and forging As shown in the second figure. The design trend of golf iron heads is mainly for successful shots and good hitting points. The main design directions are as follows: 1. Larger heads: including wood heads with a volume between 28 cc and 3 cc. 'It can even reach 350cc, or have a large size (Oversize) iron, which is characterized by increasing the sweet spot of the club to increase the probability of successful hits and increase the hit distance. 2. Low Center of Gravity: In order to achieve a stable swing and hitting point, and increase the inertia, increase the distance of south stroke, and decrease the center of gravity is the latest trend. 3. Low working pressure resistance and concave back-type reinforced striking surface design: In order to achieve a stable swing and hitting point and reduce torsional energy loss, the recent development trend is to change the shape of the club head by computer design to reduce the coefficient of wind resistance and change The different sweet-smelling areas are not even the hitting surfaces of iron or wooden heads, and the hitting surfaces are made by high-pressure extrusion. Although the low center of gravity, low air resistance, and enhanced striking surface can achieve successful hits and good hitting points, 'increasing torsional inertia and increasing the hitting distance, etc., in general,' for golf iron heads, due to their shape The change is relatively late, so the gold material required to make iron heads with w must have both high strength and high elongation characteristics, and it must also have button resistance. However, the current industrial alloy materials do not fully meet the performance requirements of iron heads. For titanium alloys and stainless steels, although they have decorative properties, the elongation or the impact value is not ideal. For 304 stainless steel, although its elongation is about reachable ------- 46〇591 A7 B? Five invention description (~ W ', but the strength is still insufficient, so it is still forged soft iron coffee head = sr85ksl Tensile strength and 3G% ~ 35% elongation material are the negative materials for making irons, but the corrosion resistance after forging is still slightly inadequate. = This' in Nanfu club specifications are based on the weight of the head Under the factors, you can develop new materials with low selectivity, surface elongation or high physical properties with a certain strength. Low density will make the ball head design space larger. Appropriate strength will stabilize the ball striking distance or reduce the striking surface. Thickness to increase the design space, high elongation or toughness can increase the ball control performance, which can make the impact of golf club heads to the best. According to the common experience of golf club manufacturing, One of the best alloy materials for iron heads The tensile strength should be about L0 ~ 15 times of the forged soft iron, that is, the tensile strength is about ~ 120ksi, the drop strength is about 55ksi ~ 70ksi, the elongation must be more than 40% and the higher the better, and lower than 7.9g / If the density of cm3 is at the same time, if it has corrosion resistance, its design space can be increased to produce a Shaneff ductile iron head or hollow iron head with the best performance. In the past ten years, iron, aluminum and fierce The alloy steel series has been extensively studied by experts and scholars at home and abroad. It has been shown that different alloy designs can make iron-aluminum-manganese alloy steels have high strength and toughness, respectively, low temperature resistance, high temperature resistance and wear resistance. The properties are described in detail.
Schrnatz，D. J.所發表，i960 年，Trans. ASM，第 52 冊 ’ 898 頁’標題 “ Structure and Properties ofSchrnatz, D. J., i960, Trans. ASM, Book 52, Volume ’898’ Title “Structure and Properties of
Austentic Alloys Containing Aluminuiii and Silicon”、 Krivonogov, G, S_ 等人所發表，1975 年，Phys. Met. & Metallog ’ 弟.4 冊 ’ 29 頁，標題 “phase Trasformation 6 本紙張尺度適用中國國家標準（CNS)A4规格 裝--------訂_-------線 (請先閱讀背面之注意事項再填寫本頁) (2.10x 297 公釐） 460591 Λ7 B7__五、發明說明（ί) Kinetics in Steel 9G28Yu9MVB” 、Banerji, S. K.所發 表，1978 年，4 月，Met. Prog，，59 頁，標題 “An Austenitic Stainless Steel Without Nickel or Chromium, Charles, J,等人所發表，1981 年，Met. Prog.，71 頁，標題 Phase Decomposition of Rapidly Solidified Fe-Mn-Al-C Austenitic Alloys" ' Grcia, J. 等人所發表，1982年，Met. Prog. ，47頁，標題 Development of Oxidation Resistant Fe-Mn-Al Alloys” 、Wang, R.等人所發表，1983 年，Met, Prog.， 72 頁，標題 “New Stainless Steel Without Nickel or Chromiun for alloys Applications” 、Benz，J. C.等人 所發表，1985 年 ’ J. Met.，36 頁，標題 “An Assessment of Fe-Mn-Al Alloys as Substitutes for Stainless Steels” ，J. Charles.等人所發表，1981 年，Met. Prog，71 頁，標題 “New Cryogenic Materials” 、Ham, L H.等人所發表，1986 年，Scripta Metall，第 20 冊，33 頁，標題 “TEM Evidence of Modulated Structure in Fe-Mn-Al-C Alloys” 、Tjong, S. C.所發表，1990 年， Mater. Char，第 24 冊，275 頁，標題 “Electron Microscope Observations of Phase Decompositions m an Austentic Fe-8.7Al-29.7Mn-l.04C Alloy" 1 Hwang, C. N.等人所發表，1993 年，Scripta Metal 1 ，第 28 冊，109 7.8A1-1·7Μη-0: 8Si-l_0C Alloy” ' Liu, T. F.所發表， _ 7 本紙張尺度適用+國國家標準（CNS)A.l規格（2]0 x297公釐） --------------------Ί 訂 ---------- (請先閱讀背面之注意事項再填寫本頁) A7 460591 -----------W_ 五、發明說明（b) 靡年，美國專利第刪357號，標題u〇iied"Austentic Alloys Containing Aluminuiii and Silicon", published by Krivonogov, G, S_, et al., 1975, Phys. Met. &Amp; Metallog 'Brother. 4', page 29, titled “Phase Trasformation 6 This paper standard applies to Chinese national standards ( CNS) A4 size package -------- Order _------- line (Please read the precautions on the back before filling this page) (2.10x 297 mm) 460591 Λ7 B7__V. Invention Description (ί) Kinetics in Steel 9G28Yu9MVB ”, published by Banerji, SK, April 1978, Met. Prog, page 59, titled“ An Austenitic Stainless Steel Without Nickel or Chromium, Charles, J, etc., 1981, Met. Prog., Page 71, title Phase Decomposition of Rapidly Solidified Fe-Mn-Al-C Austenitic Alloys " 'Grcia, J. et al., 1982, Met. Prog., Page 47, title Development of Oxidation Resistant Fe-Mn-Al Alloys ", Wang, R., et al., 1983, Met, Prog., page 72, title" New Stainless Steel Without Nickel or Chromiun for alloys Applications ", Benz, JC, etc. Issued , 1985 'J. Met., Page 36, titled "An Assessment of Fe-Mn-Al Alloys as Substitutes for Stainless Steels", published by J. Charles. Et al., 1981, Met. Prog, page 71, title "New Cryogenic Materials", published by Ham, L H., et al., 1986, Scripta Metall, Volume 20, page 33, entitled "TEM Evidence of Modulated Structure in Fe-Mn-Al-C Alloys", Tjong, SC Published, 1990, Mater. Char, Vol. 24, page 275, titled "Electron Microscope Observations of Phase Decompositions m an Austentic Fe-8.7Al-29.7Mn-l.04C Alloy " 1 Hwang, CN, etc., In 1993, Scripta Metal 1, Volume 28, 109 7.8A1-1 · 7Μη-0: 8Si-l_0C Alloy ”“ Published by Liu, TF, _ 7 This paper size applies to the national standard (CNS) Al specification (2 ] 0 x297 mm) -------------------- Ί Order ---------- (Please read the notes on the back before filling in this page ) A7 460591 ----------- W_ V. Description of the invention (b) In recent years, US Patent No. 357 deleted, title u〇iied
Alloy Steel Plate，、 :综合上述研究結果，其主要成份為鐵、鋁、錳、碳， 錳元素的添加主要可穩定沃斯田鐵相，使此合金在室溫或 低溫均為面心立方（FCC)結構，以改善Fe—M或FtAi—c 合金的脆性，而使此合金具有良好的韌性與加工性，鋁元 素的添加可增加合金的抗氧化性和抗蝕性’碳主要可析出 強化元素，即將合金於l〇5(rc〜12〇(rc間做固溶化熱處理 後急速淬火，並於450°C〜75.(TC間做時效處理。當合金在 淬火狀態時為單一沃斯田鐵相，時效熱處理時，首先會有 細微（Fe，Mn)3AICx /c相碳化物均勻整合（coherent)在基 地内析出。此外，依成份不同在長時間時效處理後，在晶 界上會產生Τ — α + -Μη或7 -> α + /9 /c相等相分解反Alloy Steel Plate, :: Based on the results of the above studies, its main ingredients are iron, aluminum, manganese, and carbon. The addition of manganese elements can mainly stabilize the Wastfield iron phase, making this alloy face-centered cubic at room temperature or low temperature ( FCC) structure to improve the brittleness of Fe-M or FtAi-c alloys, so that this alloy has good toughness and processability. The addition of aluminum element can increase the oxidation resistance and corrosion resistance of the alloy. Carbon can be mainly precipitated and strengthened. Element, that is, the alloy is rapidly quenched after solid solution heat treatment at 105 (rc ~ 12 ° (rc), and aged at 450 ° C ~ 75. (TC). When the alloy is in the quenched state, it is a single Vostian For iron phase, during the aging heat treatment, fine (Fe, Mn) 3AICx / c phase carbides are uniformly precipitated (coherent) in the base. In addition, depending on the composition, after long-term aging treatment, it will be generated on the grain boundaries. Τ — α + -Μη or 7-> α + / 9 / c
應’此晶界粗大泠—Μη析出物將造成材料延性降低。因 此’在沃斯田鐵基地產生均勻且整合之^相碳化物，而沒 有粗大的冷-Μη析出物於晶界形成，乃為鐵—鋁—在孟—碳 合金獲致向強度及高勒性之重要方法D 依據上述的研究成果發現，鐵一紹一猛合金主要成份 範圍為鐵、〜12%的鋁、20%〜35%的錳及0.3%〜；[3%的 碳，其經固溶化、淬火及時效處理後，依合金成份不同， 其抗拉強度介於80ksi〜200ksi之間，降伏強度介於6Qksi 〜MOksi之間，而延伸率則介於62%〜25%之間，如第三圖 及第四圖所示分別為過去專家學者研究之典型鐵〜餘—猛 合金成份與其機械性質比較表。 ___ 8 本紙张K度適用中國國家標準（CNShYi規烙（210 X 297公爱） 1 — — — — — — — 11— -1III1--1T,l· —------- (請先閱璜背面t注意事項再填寫本頁〕 46〇5c， Λ7 ___________B7____—_ 五、發明說明（〇 ) 過去，本發明者曾經對鐵一10%紹一 30%猛一1 %奴合金 材料，以及鐵一 8%鋁一30%錳一0.8%碳合金材料進行研究分 析，結果顯示鐵一10%鋁一 30%錳一1%碳合金材料經過〇. 5 〜2小時的ll〇〇°c熱處理之後，其硬度值HRb82· 7〜88.9， 抗拉強度值為lllksi〜124ksi，降伏強度值為79.7ksi〜 971^1，延伸率為58.9%〜63.3%，晶粒尺寸（(1)與抗拉強 度（σ )之 Hal l-Petch 關係式為 ¢7 =68.72+21.2 /(1-0,16， 如第五圖所示為鐵一鋁一錳合金材料熱處理後之金相圖， 而且經鹽務式驗以兩濃度鹽水喷射48小時後顯示其抗敍性 不佳’且其在其他專家學者所研究之熱加工條件溫度1 t〜1200°c熱鍛加工後’材料表面粗糙度 m ’如第六圖所示為鐵一鋁—猛合金材料熱锻後之金相圖。 而鐵一8%鋁一30%錳一〇. 8%碳合金材料經過〇. 5〜2小時 liooc之熱處理後’其抗拉強度值為ii〇ksi〜i2〇ksi，與 鐵一 10%鋁一 30%錳一 1%碳合金材料差異不大，只有降伏強 度值為71，lksi〜83.1kS1變化稍大，其延伸率亦維持在 58. 5/〜64. 7%之間，晶和:尺寸（d )與抗拉強度（)之 =士㈣關係式為σ :69. 25 + 23. 6 x d-u5，經鹽霧試驗以 同很度鹽水喷射48小時後顯示其抗蝕性不佳，且其在身家 學者所研究之熱加工條件溫度1050t〜丨2⑽。c熱鍛加工後 之材料表面粗糙度值Ra=3. 2〜5. 7"m。 有鑑於此，本發明者乃利用合金設計與製程處理之理 念，設計出本發明高爾夫球鐵桿頭合金材料’藉以提供一 種具有低密度.（密度在6.78〜7』5g/cm3之間）;高延展特 (5^7~i ；m (m x 297 ^------- --------------------—訂---------- (請先閱讀背面之注意事項再填寫本頁) 4 6 0 5c Λ7 I--------- 07_____ 五、發明說明（g)Due to this coarse grain boundary, the Mn-Mn precipitate will reduce the ductility of the material. Therefore, 'uniform and integrated ^ -phase carbides are produced at the Vostian iron base, without coarse cold-Mn precipitates formed at the grain boundaries, which are iron-aluminum-alloy-induced carbon alloys with directional strength and high ductility Important Method D According to the above research results, it is found that the main components of Fe-Shao-Meng alloy are iron, ~ 12% aluminum, 20% ~ 35% manganese, and 0.3% ~; [3% carbon, which After melting, quenching and aging treatment, depending on the alloy composition, the tensile strength is between 80ksi ~ 200ksi, the drop strength is between 6Qksi ~ MOksi, and the elongation is between 62% ~ 25%, such as The third and fourth figures show the comparison table of the composition and mechanical properties of typical Fe ~ Y-Mg alloys studied by experts and scholars in the past. ___ 8 K degree of this paper applies Chinese national standard (CNShYi standard (210 X 297 public love) 1 — — — — — — — 11— -1III1--1T, l · —------- (please first Please read the notes on the back of the page and fill in this page again.] 46〇5c, Λ7 ___________B7______ V. Description of the invention (〇) In the past, the inventor used iron 10% to 30% 1% slave alloy materials, and Iron—8% aluminum—30% manganese—0.8% carbon alloy material is researched and analyzed, and the results show that iron—10% aluminum—30% manganese—1% carbon alloy material is subjected to a heat treatment of 110 ° C for 0.5 to 2 hours. After that, its hardness value is HRb82 · 7 ~ 88.9, tensile strength value is lllksi ~ 124ksi, undulating strength value is 79.7ksi ~ 971971, elongation is 58.9% ~ 63.3%, grain size ((1) and tensile strength The Hal l-Petch relationship of the strength (σ) is ¢ 7 = 68.72 + 21.2 / (1-0,16, as shown in the fifth figure, the metallographic diagram of the iron-aluminum-manganese alloy material after heat treatment, and the salt The service test shows that the spray resistance of two concentrations of salt water for 48 hours shows that the resistance is poor, and that it is hot-processed at a temperature of 1 t ~ 1200 ° c. The surface roughness m 'as shown in the sixth figure is a metallographic diagram of iron-aluminum-tough alloy material after hot forging. And iron- 8% aluminum- 30% manganese- 0.8% carbon alloy material passes through 0.5 ~ After 2 hours of heat treatment of liooc ', its tensile strength value is ii〇ksi ~ i2〇ksi, which is not much different from iron—10% aluminum—30% manganese—1% carbon alloy material, only the yield strength value is 71, lksi ~ The change of 83.1kS1 is slightly larger, and its elongation is also maintained between 58.5 / ~ 64.7%, the crystal sum: the size (d) and the tensile strength () = Shifang relationship is σ: 69. 25 + 23. 6 x d-u5, after spraying with the same degree of salt water for 48 hours after salt spray test, it shows poor corrosion resistance, and its hot working condition temperature studied by scholars is 1050t ~ 丨 2⑽. C hot forging processing The subsequent material surface roughness value Ra = 3. 2 ~ 5. 7 " m. In view of this, the inventors have used the concept of alloy design and process treatment to design the golf iron head alloy material according to the present invention to provide a Has a low density. (Density is between 6.78 ~ 7 『5g / cm3); High ductility (5 ^ 7 ~ i; m (mx 297 ^ ------- ---------- ------------ Order ---------- ( Note that the rear surface of the matter to read the page and then fill) 4 6 0 5c Λ7 I --------- 07_____ V. invention is described in (g)
I I陡（延伸率在以上），且抗杈強度介於80ksi〜120ksi j之間、降伏強度介於55kS1〜7GkS1之間且具有抗触性之素 |材，有別於過去專家學者所研究設計之範疇，並且更符合 |用以製作咼爾夫球鐵桿頭之高強度 '高延展性、高防銹性 及優良锻造加工性要求的實用性材料者。 本發明設計之主要目的係在於：提供一種具有低密 度、高延展及高防銹特性的高爾夫球鐵桿頭合金材料，其 合金材料具有25%〜31%錳、6. 3%〜7. 8%鋁、0.65%〜〇.85% 碳及5.5%〜9.0%鉻，其中亦可添加0·8%〜15%矽、2.〇%〜 5.0%鈦或0.5%〜1.0%鉬，且其餘比例均以鐵為基材組合而 成；由於其所添加之鉻、鈦、鉬均具有極佳的抗大氣蝕腐 性，且又可以在80(rc〜丨〇5〇t溫度熱鍛加工，可獲致極佳 的表面性質，並經過980°C〜1080°C溫度1〜24小時熱處 理’即可獲致極佳的延展性與抗拉強度的組合’故使得該 合金材料可達到高強度、低密度、高延展性、高防銹性及 優異的表面性質。 為使貝審查委員能更進一步瞭解本發明之組成成份 及其機械性質，茲附以圖式詳細說明如后： | (一）·圖式部份： | 第一圖：係精密脫蠟鑄造法與鍛造加工法所製作之鐵桿頭 ； 特性比較表。 I 第二圖：係目前用以製作鐵桿頭之材料機械性質比較表。 第三圖：係目前學術界已研究發表之典型鐵一鋁—錳合金 ΐ 成份表。 !_ ,。 本纸張尺糾财_家鮮（CT^A4聽（加χ 297公爱） —— - -------------裝-------—訂- --------綿 (請先閲讀背面之注意事項再填寫本頁) A7 460591 五、發明說明（） 弟四圖係目前學術界已研究發表之典型鐵—紹—猛合金 的機械性質比較表。 第五圖.係鐵一铭一猛合金材料熱處理後之金相圖。 第六圖：係鐵一鋁—錳合金材料熱鍛後之金相圖。 第七圖：係本發明之實施例與比較例組成成份表。 第八圖：係本發明之材料特性比較表（一）。 第九圖：係本發明熱處理時間對抗拉強度、降伏強度及延 伸率影響關係圖（一）。 第十圖：係本發明之材料等性比較表（二）。 第十一圖：係本發明熱處理時間對抗拉強度、降伏強度及 延伸率影響關係圖（二）。 弟十一圖.係本發明熱鍛溫度對表面粗糙度影響關係圖。 本發明係關於一種低密度高延展性鐵基之高爾夫球鐵 桿頭合金材料，其主要之元素組成成份為鐵、錳、鋁、 碳、鉻，其中亦可添加矽、鈦、鉬； 其中’ i孟之成份為25%〜31% ’鋁之成份為6. 3%〜 7.8%，碳之成份為0·65%〜〇·85%，鉻之成份為5.5%〜 9. 0%，矽之成份為〇⑽〜1, 5%，鈦之成份為2. 〇%〜5· 〇%， 鉬之成份為0 5%〜1 · 〇%，其餘的比例均以鐵為基材所組合 而成合金材料。 以下即配合實施例詳細說明，如第七圖所示，編號丄 〜丨〇為本發明之成分範疇，編號〜15為比較實施例。 再由第八圖及第十圖所示可知，鐵―26. 5〇%錳一 6, 85% 鋁—0.69%碳一.5.67%鉻所組成之編號丨合金材料1經1〇3〇 本紙張尺度適用中S ®家標準（CNS)A4規格x 297公发; ------------裝 ---------訂---------- (請先閱讀背面之注意事項再填寫本I> Λ7 460591 _____— ΰ7—__ 五、發明說明（（ο) C熱處理2小時後，其機械性質為抗拉強度值為1〇5ksi， 降伏強度值為62. 3ksi，延伸率可達g8. ，室溫衝擊值可 達1〇3.0 p尺一碌，再經950 C熱鍛加工後表面粗链度可達 2.63//Π1。若延長l〇30°C熱處理時間至12小時後，其機械 性質則變化為抗拉強度值為104· 8ksi，降伏強度值為 62. lksi ,延伸率可達75,9%，室溫衝擊值可達142.8呎一 石旁，再經8 5 0 C熱锻加工後表面粗縫度可達2 · 1丨μ m。且其 球頭經鹽霧試驗48小時及高爾夫球砲擊3000發試驗均合 格。同樣的，編號2〜10合金材料之成分在本發明範疇 内，經1030°C溫度之2〜12小時熱處理後，其機械性質抗 拉強度值介於104‘8ksi〜118.2ksi之間，降伏強度值則介 於62· Iksi〜68. 5ksi之間，延伸率可達β5. 8°/。〜77. 8%，室 溫衝擊值135.2〜158.5呎一磅，表面粗糙度達2·8/ηη以 下’且鹽霧試驗48小時及高爾夫球砲擊試驗均合格。 而當合金材料中不添加鉻（比較例編號11、1 2合金材 料），或含鉻量為3. 15% (比較例編號13合金材料），咬 含鉻量為4 89% (比較例編號14合金材料）時，雖然其機 械性質部分符合要求，但是鹽霧試驗基本上若無進—步之 表面處理則皆無法合格。換言之，必須進一步施以表面電 锻處理方可滿足抗鹽霧試驗。 本發明合金範圍材料，經由800°C〜1050t之溫度熱擎 加工’並經980°C〜l〇8(TC溫度熱處理1〜4小時，則八= 材料之延展性可到達65%，如第八圖及第九圖所示；^ β ，右延 長至4〜24小時’則合金材料之延展性可提昇到7⑽以 ___ 12 本紙張尺度適用—巾[^家標準（CNS)A4規格⑵〇 χ 297公t ) ' ~· -- •I I 丨 I 111 I --- (請先閱讀背面之注意事項再填寫本頁} 訂： 線· ^ 60 5 91 Λ7 B7 五、發明說明（ 上如第十圖及第十一g] M D Λ 4 i H ^ C的w度進行熱處理時發現’其熱處理時間達24小 時，延伸率變化不明顯’但降伏強度會將低至54.8ksi， 低方、預期目標55ksi。因此，若要滿足適當的降伏強度範 圍 '則本發明合金範圍材料之熱鍛溫度應在24小時以下。 ▲另外’如第十二圖戶$示，編號1合金材料經過不同锻 =狐度如以π爾夫球鐵桿頭試製，發現其表面粗植度會隨 著鍛坟酿度的上升而由l9"m變化至57 因此，若要 禹足阿cm貪之鲜又造表面在Ra小於3 "爪以下，則本發明合 金範圍材料之熱鍛溫度應在1050°C以下。 以下再7刀別針對各種添加合金元素之設計比例、限制 範圍及其對於合金材料性質之影響一一說明如下： 錳：錳通常是與鐵共存，由於錳容易與硫結合，可消 除硫對於合金材料造成熱脆性之有害影響，而且錳能去除 δ至材料中的氧化物，在高碳鋼中，錳會與碳結合成 Mr^C ’且與Fe/相容合成（Fe ’ Mn ) 3C，可增強合金材料 之強度及硬化能。整體而言，當錳含量低於25w.t %時， 製造過程或成品中易產生部分肥粒鐵相，不利於加工性或 延伸性，若錳含量大於31 w_ t. %時，則將促使冷_Mn相在晶 界析出，造成脆性。因此，本發明之合金材料其錳含量應 嚴格限制在25w. t. %〜31w. t· %之間。 鋁：鋁是一種極佳的脫氧劑，其不僅可仰制結晶粒成 長’形成分散氧化物或氮化物，並可有效提昇合金材料之 延展性、加X性及韌性。整體而言，當鋁含量低於 13 表紙張尺度適用中回國家標準（CNS)A,1規恪（210 X 297公釐） -------------裝--------訂---------綉 (請先閱讀背面之注意事項再填寫本頁) 46053? Λ7 B7 五、發明說明（丨7) 6. 3w. t. %時，將使合金材料之降伏強度低於預期目標 55ksi，反之，若鋁含量大於7 8w.七％時，則降伏強度大於 預期目私70ksi。因此，本發明之合金材料其鋁含量應嚴 格限制在6.3w. t.%〜7. 8w. t·%之間。 故·奴元素除了為碳化物析出作用外，其亦是沃斯田 鐵穩定相之元素’隨著碳含量增加，肥粒鐵減少而沃斯田 鐵愈穩定。整體而言，當碳含量大於G.5w.t%時，合金材 料即可穩定形成沃斯田鐵相，而為使降伏強度達到介於預 期目仏55ksi〜7Gksi之間，本發明之合金材料其碳含量應 嚴格限制在0.65W.1；.%〜〇.85w.t %之間。 鉻：在合金材料中添加鉻時’不僅可增加合金材料的 腐触及氧化抵抗性，又可提昇合金材料之硬化能及高溢強 度，尤其是對於高破鋼之耐磨耗性更有極顯著之效果。整 體而言’當鉻含量低於，5. 5w.t %時，將使該合金材料所作 之鐵桿頭不符合鹽霧試驗標準，而當絡含量大於m 時’則其延伸率將低於65%之預期目帛。因此，本發明之 合金:娜鉻含量應嚴格限制在5.5w t %〜9.〇w_t k 間。若鉻含量低於5 1- 0/ H, 6 iu，則應加以電鍍處理，以增加 其抗姓性。 及择=合金㈣内有防止氣孔形成、增進收縮作用 特點，但是當”量大於I ， ==Π!65%之預期目標。因此，本發明之合金材 ^厂G.8w.u〜丨士“教⑯，將有助於鑄件原料 14 --------------------i 訂.-------I (請先閱讀背面之注意事項再填寫本頁) 表紙張尺㈣財關家標準規^· ⑵〇χ 297公妥* Λ7 Β7 ^β〇59ΐ 五、發明說明（丨3) (請先閱讀背面之注意事項再填寫本頁) 欽.鈦可以降低材料之密度與增加材料之抗融性，整 u。鈦3里在2‘ Gw· t_ %以下時’其降低材料密度與增 加材料抗錄效果不明顯，而當含量在5. Gw.U以上會降 低合金材料之延伸率。因此，本發明之合金材料若能添加 2. 〇w. t. %〜5. Gw. t. %之鈦’在預期性f範嘴内，將有助於 5金材料岔度的降低與耐敍性的增加。 1目：飽可以使沃斯田鐵的粗大化溫度上昇，並使硬化 層深入’防止回火脆性：並可提昇合金材料之高溫強度、 '曰文強度及间，皿硬度，同時並可使合金材料之抗孔蝕性 增加，並形成4磨耗之碳仙粒子，且有助於鋼液之流動 性，唯钥含量高於1.5w.t. %以上時會造成過多之析出，使 材料脆化。因此，本發明之合金材料若能添加〇 〜 l.Ow.t. %之鉬，在預期性質範疇内，將有助於合金流動性 與鑄造性，同時增加耐I虫性。 整體而言，以本發明之合金材料製作高爾夫球鐵桿頭 時，若是以鍛造成型，則可以800。(：〜1 050。(：溫度熱鍛造， 可得到Ra=3#m以下之最佳表面精度，若在1〇5〇ΐ〜12〇〇 t溫度熱加工除了會增加氧化層外，將使工件之表面粗度 Ra大於3 # m ’不利於高爾夫球頭品質。 藉由上述設計，使本發明高爾夫球鐵桿頭合金材料具 有以下優點： 1.機械強度：由於鋁、錳、碳之含量適當控制，其抗 拉強度值可介於80ksi〜120ksi之間’降伏強度值可介於 55ksi〜70ksi ,之間，華以該合金材料製作鐵桿頭，將可發 15 本紙張尺度適用中國國家標準（CNS)A'l規格（21ϋ X 297公釐） 460591 Λ7 137 、發明說明（ΐφ) 揮高爾夫球鐵桿頭或空心鐵頭的最佳要求q 2_低密度：由於合金中添加6.3%〜了.8%之銘元素，^ --------------裝— (請先閱讀背面之注意事項再填寫本頁) 二力HL/o〜鈦元素，且該合金材料為sII is steep (elongation is above), and has a resistance to stagnation between 80ksi and 120ksi j, a drop strength between 55kS1 and 7GkS1, and a material with anti-contact properties, which is different from the previous research and design by experts and scholars Range, and more in line with | practical materials for high strength 'high ductility, high rust resistance and excellent forging processability requirements for making golf club heads. 8% The main purpose of the design of the present invention is to provide a golf iron head alloy material with low density, high elongation and high rust resistance, the alloy material has 25% ~ 31% manganese, 6.3% ~ 7. 8% Aluminum, 0.65% to 0.85% carbon and 5.5% to 9.0% chromium, of which 0.8% to 15% silicon, 2.0% to 5.0% titanium, or 0.5% to 1.0% molybdenum can also be added, and the remaining proportions All are based on the combination of iron; as the added chromium, titanium, and molybdenum have excellent resistance to atmospheric corrosion, and can be hot forged at 80 (rc ~ 丨 050t temperature, can be Obtain excellent surface properties and heat treatment at 980 ° C ~ 1080 ° C for 1 ~ 24 hours to obtain a combination of excellent ductility and tensile strength, so that the alloy material can achieve high strength and low density , High ductility, high rust resistance, and excellent surface properties. In order to allow the panel reviewer to better understand the composition and mechanical properties of the present invention, detailed drawings are attached as follows: | (一) · 图Formula part: | First picture: iron heads made by precision dewaxing casting method and forging processing method; comparison table of characteristics. I The second picture: a comparison table of the mechanical properties of the materials currently used to make iron heads. The third picture: a typical iron-aluminum-manganese alloy 表 composition table that has been researched and published by the academic community at present. Money Correction _ Home Fresh (CT ^ A4 Listening (plus χ 297 public love) ------------------ install ----------- order ------- --Mian (please read the precautions on the back before filling this page) A7 460591 V. Description of the invention () The fourth figure is a comparison table of the mechanical properties of typical iron-Shao-Meng alloys that have been researched and published by the academic community. Figure. Metallographic diagram of iron-ming-manganese alloy material after heat treatment. Figure 6: Metallographic diagram of iron-aluminum-manganese alloy material after hot forging. Figure 7: Examples and comparative examples of the present invention. Composition table. Figure 8: Comparison table of material properties of the present invention (1). Figure 9: Relation diagram of the effect of heat treatment time on tensile strength, yield strength and elongation of the present invention (1). Figure 10: Department Comparison table of material isotropy of the present invention (II) Figure 11: The effect of the heat treatment time of the present invention on the tensile strength, yield strength and elongation Relationship diagram (II). Figure 11 shows the relationship between the hot forging temperature and the surface roughness of the present invention. The present invention relates to a low-density and high-ductility iron-based golf iron head alloy material, the main element composition Ingredients are iron, manganese, aluminum, carbon, chromium, which can also be added with silicon, titanium, molybdenum; where 'i Meng's composition is 25% ~ 31%' aluminum's composition is 6.3% ~ 7.8%, carbon's composition 〇% ~ 〇.85%, the composition of chromium is 5.5% ~ 9.0%, the composition of silicon is 〇⑽ ~ 1, 5%, the composition of titanium is 2. 〇% ~ 5. ％, molybdenum Its composition is 0 5% ~ 1.0%, and the remaining proportions are alloy materials made of iron as the base material. The following is a detailed description in conjunction with the embodiments. As shown in the seventh figure, the numbers 丄 to 丨 are components of the present invention, and the numbers to 15 are comparative examples. As can be seen from the eighth and tenth figures, the number consisting of iron-26.50% manganese-6, 85% aluminum-0.69% carbon-.5.67% chromium The paper size is applicable to the S ® Home Standard (CNS) A4 size x 297 public hair; ------------ installation --------- order --------- -(Please read the notes on the back before filling in this I > Λ7 460591 _____— ΰ7 —__ V. Description of the invention ((ο) After 2 hours of C heat treatment, its mechanical properties are a tensile strength value of 105ksi and a drop strength The value is 62.3ksi, the elongation can reach g8, the impact value at room temperature can reach 103.0 p feet, and the surface rough chain degree can reach 2.63 // Π1 after 950 C hot forging. If extended l〇 After 30 ° C heat treatment time to 12 hours, its mechanical properties change to a tensile strength value of 104 · 8ksi and a drop strength value of 62.lksi, an elongation of up to 75,9%, and a room temperature impact value of up to 142.8 feet Next to a stone, the surface roughness after hot forging at 850 ° C can reach 2 · 1 丨 μ m. And its ball head passed the salt spray test for 48 hours and the golf shelling test of 3,000 rounds. The same, number The composition of 2 to 10 alloy materials is within the scope of the present invention After 2 ~ 12 hours heat treatment at a temperature of 1030 ° C, the tensile strength value of its mechanical properties is between 104'8ksi ~ 118.2ksi, and the yield strength value is between 62 · Iksi ~ 68. 5ksi, the elongation can be Up to β5. 8 ° /. ~ 77.8%, room temperature impact value 135.2 ~ 158.5 feet per pound, surface roughness up to 2 · 8 / ηη 'and salt spray test for 48 hours and golf shot test are qualified. When chromium is not added to the alloy material (Comparative Example No. 11, 12 alloy material), or the chromium content is 3. 15% (Comparative Example No. 13 alloy material), the chromium content is 4 89% (Comparative Example No. 14) Alloy material), although its mechanical properties partially meet the requirements, but the salt spray test is basically unqualified without further surface treatment. In other words, the surface electroforge treatment must be further applied to meet the salt spray resistance test. The alloy range material of the present invention is processed through a thermal engine at a temperature of 800 ° C ~ 1050t and heat treated at 980 ° C ~ 108 (TC temperature for 1 ~ 4 hours, then eight = the ductility of the material can reach 65%, as Figure 8 and Figure 9; ^ β, right extended to 4 ~ 24 hours' The alloy material The ductility of the material can be improved to 7⑽ to ___ 12 This paper size is applicable—towel [^ 家 standard (CNS) A4 size χ〇χ 297 公 t) '~ ·-• II 丨 I 111 I --- (Please Read the precautions on the back before filling this page} Order: Thread · ^ 60 5 91 Λ7 B7 V. Description of the invention (as shown in the tenth figure and the eleventh above) When MD Λ 4 i H ^ C is heat treated It was found that 'the heat treatment time is up to 24 hours, and the elongation is not significantly changed', but the drop strength will be as low as 54.8ksi, and the expected target is 55ksi. Therefore, in order to satisfy the appropriate range of yield strength, the hot forging temperature of the alloy range material of the present invention should be below 24 hours. ▲ In addition, as shown in the twelfth figure, the number 1 alloy material is subjected to different forgings. For example, the fox degree is trial-produced with a π-elf ductile iron head. m changes to 57. Therefore, if the surface of Yuzu Acm is to be less than 3 " claw, the hot forging temperature of the alloy range material of the present invention should be below 1050 ° C. The following 7 chapters will explain the design proportions, limits of various alloying elements and their effects on the properties of alloy materials. Manganese: Manganese usually coexists with iron. Because manganese is easily combined with sulfur, it can eliminate sulfur. The material causes the harmful effects of hot brittleness, and manganese can remove δ to the oxide in the material. In high carbon steel, manganese will combine with carbon to form Mr ^ C 'and is compatible with Fe / Fe (Mn' Mn) 3C, Can enhance the strength and hardening performance of alloy materials. On the whole, when the manganese content is less than 25w.t%, part of the ferrous iron phase is easily produced in the manufacturing process or the finished product, which is not conducive to processability or elongation. If the manganese content is greater than 31w_t.%, It will promote The cold_Mn phase precipitates at the grain boundaries, causing brittleness. Therefore, the manganese content of the alloy material of the present invention should be strictly limited to between 25w. T.% ~ 31w. T ·%. Aluminum: Aluminum is an excellent deoxidizer. It not only can grow crystal grains to form dispersed oxides or nitrides, but also can effectively improve the ductility, X-addition and toughness of alloy materials. In general, when the aluminum content is lower than the 13-sheet paper standard, the China National Standard (CNS) A, 1 specification (210 X 297 mm) is applied ------------- installation --- ----- Order --------- Embroidery (Please read the precautions on the back before filling this page) 46053? Λ7 B7 V. Description of the invention (丨 7) 6. 3w. T.%, The yield strength of the alloy material will be lower than the expected target of 55ksi. On the contrary, if the aluminum content is greater than 78 w. 7%, the yield strength will be greater than the expected target of 70ksi. Therefore, the aluminum content of the alloy material of the present invention should be strictly limited to between 6.3w. T.% ~ 7. 8w. T ·%. Therefore, in addition to the precipitation of carbides, the slave element is also an element of the stable phase of Vosstian iron. As the carbon content increases, the iron in the fertilizer particles decreases and the iron in Vosstian becomes more stable. On the whole, when the carbon content is greater than G.5w.t%, the alloy material can stably form a Wastfield iron phase, and in order to achieve a drop strength between the expected mesh size of 55ksi to 7Gksi, the alloy material of the present invention Its carbon content should be strictly limited to 0.65W.1;.% ~ .85w.t%. Chromium: When chromium is added to alloy materials, it can not only increase the corrosion resistance and oxidation resistance of alloy materials, but also improve the hardening energy and high overflow strength of alloy materials, especially for the wear resistance of high-break steel. The effect. Generally speaking, 'when the chromium content is lower than 5.5 w.t%, the iron head made by the alloy material will not meet the salt spray test standard, and when the content is greater than m', the elongation will be lower than 65. % Expected. Therefore, the alloy of the present invention: the content of sodium chromium should be strictly limited to 5.5w t% ~ 9.0w_t k. If the chromium content is less than 5 1- 0 / H, 6 iu, it should be electroplated to increase its surname resistance. Choosing = alloy ㈣ has the characteristics of preventing the formation of pores and promoting shrinkage, but when the amount is greater than I, == Π! 65% of the expected target. Therefore, the alloy material of the present invention ^ Factory G.8w.u ~ 丨 士"Instructions will help the casting materials 14 -------------------- i order .--------- I (Please read the precautions on the back first (Fill in this page again) Standard rule for financial institutions ^ · ⑵〇χ 297 publicly available * Λ7 Β7 ^ β〇59ΐ V. Description of the invention (丨 3) (Please read the precautions on the back before filling this page) Qin. Titanium can reduce the density of the material and increase the melting resistance of the material. Titanium 3 in 2 ‘Gw · t_% or less’ is not obvious in reducing the material density and increasing the anti-recording effect of the material, and when the content is above 5. Gw.U, it will reduce the elongation of the alloy material. Therefore, if the alloy material of the present invention can add 2. 0wt% ~ 5. Gw.t.% of titanium 'in the expected range of f, it will contribute to the reduction of the bifurcation of 5 gold materials and the resistance increase. 1 mesh: fullness can increase the coarsening temperature of Vostian iron, and deepen the hardened layer 'preventing tempering brittleness: and can increase the high temperature strength, alloy strength, and hardness of the alloy, and can also make The pitting resistance of the alloy material is increased, and 4 abraded carbon fairy particles are formed, which contributes to the fluidity of the molten steel. However, when the content of the key is higher than 1.5wt%, it will cause excessive precipitation and make the material brittle. Therefore, if the alloy material of the present invention can add 0 to l.Ow.t.% of molybdenum, it will contribute to the alloy's fluidity and castability within the range of expected properties, and increase the resistance to I insects. On the whole, when the golf iron head is made of the alloy material of the present invention, it can be 800 if it is forged. (: ~ 1 050. (: Hot forging at temperature, the best surface accuracy of Ra = 3 # m or less can be obtained. If the hot working is performed at a temperature of 1050ΐ ~ 1200t, in addition to increasing the oxide layer, it will make the The surface roughness Ra of the workpiece is greater than 3 # m 'is not conducive to the quality of the golf head. With the above design, the golf iron head alloy material of the present invention has the following advantages: 1. Mechanical strength: due to the appropriate content of aluminum, manganese and carbon Control, its tensile strength value can be between 80ksi ~ 120ksi. 'Drop-off strength value can be between 55ksi ~ 70ksi, China will use this alloy material to make iron heads, and it will be able to send 15 paper standards to Chinese national standards ( CNS) A'l specification (21ϋ X 297mm) 460591 Λ7 137, description of the invention (ΐφ) The best requirements for golf iron head or hollow iron head q 2_ Low density: 6.3% ~ added to the alloy. 8% of the Ming element, ^ -------------- equipment — (Please read the precautions on the back before filling this page) Erli HL / o ~ titanium element, and the alloy material is s
B方'.°構（F.c_c) ’故可以有效降低合金材料之密度S 彡8〜7_05g/cm3 ’若以該合金材料製作鐵桿頭，在同樣售 =規格限制之下可得較大的鐵桿頭體積，使鐵桿頭具有車j 人的形狀設計變化空間。 3·高延展性：其合金材料中除了添加㈣增加延展也 t金材料又可經過9啊〜刪。c之溫度熱處理進-料卜廷展性，當熱處理之時間為1〜“、時，則合金材 =之延展性可到達65%，若熱處理時間延長至4〜24小 夸則合金材料之延展性可提昇到70%以上。 i綿· 上::蝕性因為其合金材料中添加有鉻、鈦與翻，該 =素對於抗大氣㈣性均有純的效果，㈣將可減少 同爾夫球鐵桿頭或空心鐵頭的製造成本 成分控編造溫度條件之 卢二二鐵桿頭合金材料’具有低密 度、：延展性及耐鹽務試驗、及高的锻造表面品質等特 點’貫為製作高爾夫球鐵桿頭之最佳合金材 明專利要件，爰依法提出申請。 應付。心 本紙張叉度適用中囤國家標準（CNS)A4規格 16B side '. ° structure (F.c_c)' so it can effectively reduce the density of the alloy material S 彡 8 ~ 7_05g / cm3 'If the iron head is made of this alloy material, the larger one can be obtained under the same sale = specification limit The volume of the iron head makes the iron head have a space for changing the shape of the car. 3. High ductility: In addition to adding ㈣ to the alloy, the alloy can also be extended. The gold material can also pass through 9 ~~. c. The temperature of heat treatment feed material is ductile. When the heat treatment time is 1 ~ ", the ductility of alloy material can reach 65%. If the heat treatment time is extended to 4 ~ 24, the ductility of the alloy material can be increased. It is increased to more than 70%. I Cotton · Upper :: Corrosiveness Because its alloy materials are added with chromium, titanium, and iron, this = element has a pure effect on the atmospheric resistance, and it will reduce the number of golf balls. The manufacturing cost of the head or hollow iron head is controlled by the fabricating temperature conditions. The alloy material of the Lu 22 iron head has the characteristics of low density, ductility and salt resistance test, and high forged surface quality. The best alloy material of the top is patented, and the application is made according to law. Cope. The paper fork degree is applicable to the national standard (CNS) A4 specification 16