KR800000467B1 - Baseball bat made of f.r.p. - Google Patents

Baseball bat made of f.r.p. Download PDF

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Publication number
KR800000467B1
KR800000467B1 KR7601607A KR760001607A KR800000467B1 KR 800000467 B1 KR800000467 B1 KR 800000467B1 KR 7601607 A KR7601607 A KR 7601607A KR 760001607 A KR760001607 A KR 760001607A KR 800000467 B1 KR800000467 B1 KR 800000467B1
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South Korea
Prior art keywords
nickel
frp
bat
baseball bat
resin
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KR7601607A
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Korean (ko)
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오가 세이 이찌 야나기
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다가시마 마세루
아이고 가부시기가이샤
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B59/00—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
    • A63B59/50—Substantially rod-shaped bats for hitting a ball in the air, e.g. for baseball
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B9/00—Climbing poles, frames, or stages
    • A63B2009/002—Flat climbing nets
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B59/00—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
    • A63B59/50—Substantially rod-shaped bats for hitting a ball in the air, e.g. for baseball
    • A63B59/58—Substantially rod-shaped bats for hitting a ball in the air, e.g. for baseball characterised by the shape
    • A63B2059/581—Substantially rod-shaped bats for hitting a ball in the air, e.g. for baseball characterised by the shape with a continuously tapered barrel

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Chemically Coating (AREA)

Abstract

An improved FRP baseball bat having good tensile and bending strength is disclosed. The suface of the bats were coated with a nickel of nickel alloy(6.5 % P-Ni) at 21≰C, pH 5.7 for 20 hrs in the electroless plating bath containing nickel pyrophosphate 26.7, o-boric acid 1.2, ammonium phosphate 2.6 and sodium acetate 4.9g/l. Obtained FRP bat may not be occured a flaw on the surface by batting.

Description

FRP제 야구용 배트Baseball bat made of FRP

본 발명의 사시도.Perspective view of the present invention.

본 발명은 FRP제 야구용 배트의 개량에 관한 것이다. FRP는 인장강도와 굽힘강도가 우수하여 야구배트에 사용하고 있으나 금속재료에 비하여 수지제품의 결점이 하나인 경도가 낮고 충격에 의한 마찰로 마모되거나 볼 팁(ball tip)에 의하여 표면에 상처가 나기 쉽고 부러져 못쓰게 되기 전에 표면의 상처에 의한 요철면이 많이 폐기되어야 하였다.The present invention relates to an improvement of an FRP baseball bat. FRP is used in baseball bats because of its excellent tensile strength and bending strength. However, it is one of the weaknesses of resin products compared to metal materials, and has low hardness and wears due to impact friction or scratches on the surface by ball tip. Many uneven surfaces due to surface wounds had to be discarded before they could be broken easily and broken.

본 발명은 이와같은 FRP 배트의 결점을 보완하기 위하여 표면에 니켈도금을 하여 표면을 단단히 하고 피복층으로 피착하여 타구에 의한 표면의 상처를 감소시키기 위한 것이다.The present invention is to reduce the surface wounds caused by hitting the surface by nickel plating the surface in order to compensate for the shortcomings of the FRP bat and to secure the surface and deposited with a coating layer.

니켈합금의 도금에 있어서, 순수한 니켈은 브리넬 경도(Brinell hardness)가 250-500이나, 니켈-인 및 니켈-보론합금은 400이상으로 보통 강(鋼)보다 높은 수치를 나타내며, 또한 박리(剝離)에 대한 저항이 강하고, 경도에 있어서도 니켈보다 우수하며, 도금금속 예를들어 크롬, 텅스텐, 로디움 등은 경도가 있으나 점성(粘性)이 약하므로 충격에 있어서는 오히려 니켈보다 떨어진다. 또한 다른 연성금속으로서는 내마모성이 약하여 FRP제 야구용 배트의 표면피복금속으로서 경도와 점성이 적당히 균형을 이루는 니켈이 가장 좋다. 더우기 니켈-인, 니켈-보론합금은 열처리에 의하여 그 경도를 높일 수가 있으므로 FRP 소재에 영향을 주지 않는 온도범위를 FRP의 종류에 따라서 정하여 열처리를 하면 온도에 따른 경도상승 효과를 얻을 수 있다.In the plating of nickel alloys, pure nickel has a Brinell hardness of 250-500, but nickel-phosphorus and nickel-boron alloys have a value of 400 or more, which is higher than that of steel. It has a strong resistance to, and is superior to nickel in hardness. For example, chromium, tungsten, and rhodium have a hardness, but the viscosity is weak, so it is inferior to nickel in impact. As the other soft metal, nickel having a low wear resistance and a suitable balance of hardness and viscosity as the surface coating metal of a baseball bat made of FRP is the best. Furthermore, since the hardness of nickel-phosphorus and nickel-boron alloys can be increased by heat treatment, a hardness increase effect according to temperature can be obtained when heat treatment is performed by setting a temperature range that does not affect the FRP material according to the type of FRP.

도금방법에는 전해, 무전해에 관계없이 유사한 도금층을 얻을 수 있는 것이면 가능하나 배트표면에 균일하게 도착하기 쉬운 것은 무전해 도금방법이 우수하다.It is possible to obtain a similar plating layer irrespective of electrolysis or electrolessness in the plating method, but it is excellent in the electroless plating method that it is easy to reach the bat surface uniformly.

표면에 본 발명에 따른 니켈도금층 또는 니켈합금도금층을 갖는 배트의 FRP는 매트릭스수지로서 페놀수지, 에톡시수지, 불초화폴리에스텔수지, 메타크릴산수지 등의 열경화성 수지 또는 ABS 수지, AS 수지, 폴리옥시메틸렌수지, 나이론폴리카아보네이트수지, 폴리스티렌수지, 폴리염화비닐수지 등의 열가소성수지 중에서 각기 가격 또는 볼의 종류에 따라서 선택하고, 보강재로는 초자면(硝子綿), 석면섬유, 암면, 광재면(鑛滓綿), 카오린섬유, 탄소섬유 등의 천연 또는 인공의 무기섬유의 면, 연사(然

Figure kpo00001
), 클로스(cloth) 또는 펠트(felt) 형태로 된 것을 이용하며, 때에 따라서는 마, 면, 실크, 합성섬유, 셀루로우즈질 인조섬유, 종이섬유의 혼합, 혼방, 혼직, 합포한 것을 사용하여 일반적으로 다목적의 FRP와 동일한 소재로 배트기재를 형성한다.The FRP of the batt having the nickel plated layer or nickel alloy plated layer according to the present invention on the surface is a thermosetting resin such as a phenol resin, an ethoxy resin, an unsaturated polyester resin, a methacrylic acid resin, or an ABS resin, an AS resin, a poly Thermoplastic resins such as oxymethylene resin, nylon polycarbonate resin, polystyrene resin, and polyvinyl chloride resin are selected according to the price or the type of balls, respectively. Cotton or twisted yarn of natural or artificial inorganic fibers such as cotton, kaolin fibers, and carbon fibers
Figure kpo00001
), Cloth, or felt, and sometimes hemp, cotton, silk, synthetic, cellulose artificial, paper fiber blends, blends, blends, and composites Generally, the bat material is formed of the same material as the multipurpose FRP.

첨부도면 중 부호 1은 FRP 배트기재, 2는 니켈 또는 니켈합금 도금층이고 3은 배트의 중공 부분을 나타내고 있다.In the accompanying drawings, reference numeral 1 is an FRP bat substrate, 2 is a nickel or nickel alloy plating layer, and 3 is a hollow portion of the bat.

배트로 성형된 FRP는 다음 조건하에서 도금된다.FRP molded into bat is plated under the following conditions.

(1) 소재 : 초자 클로스로 강화된 불포와 폴리에스텔수지(1) Material: flame retardant and polyester resin reinforced with glass cloth

(2) 도금공정 :(2) Plating Process

가) 무수크롬산 희(希) 황산용액에 의한 에칭(수세)(A) Etching with chromic anhydride dilute sulfuric acid solution (washing)

나) 염화 팔라디움 용액에 의한 활성화(수세)B) Activation by palladium chloride solution (washing)

다) 무전해 니켈도금C) Electroless nickel plating

Figure kpo00002
Figure kpo00002

이상과 같은 조건으로 무전해도금을 실시한 도금층은The plating layer subjected to electroless plating under the above conditions is

Figure kpo00003
Figure kpo00003

이와같이 제조된 야구배트의 내박리성과 내충격성(표면 상처 발생으로 나타냄)의 실험데이타는 다음과 같다.Experimental data of the peeling resistance and impact resistance (indicated by surface wound occurrence) of the baseball bat thus manufactured are as follows.

(1) 열처리하지 않는 본 발명 FRP 니켈-인 도금배트(1) Inventive FRP nickel-phosphorus plating bat not heat treated

(2) 120℃로 열처리한 본 발명 FRP 니켈-인 도금배트(2) FRP nickel-phosphorus plating bat of the present invention heat-treated at 120 ° C

(3) 도금하지 않은 FRP 배트(3) Unplated FRP Bats

(4) 무전해등도금(두께 20μ)한 FRP 배트(4) FRP bats with electroless light plating (thickness 20μ)

상기 4종류의 배트에 대하여 야구공 경구(硬球)를 50m/sec의 속도로 배트의 중심선상에 2초 간격으로 연속하여 10회 단위로 타구하였다.The baseball bats were batted on the bats at 10-second intervals at a rate of 50 m / sec at intervals of 2 seconds on the bat's centerline.

이에 대한 박리 및 표면 상처 발생의 최소 타구 횟수는 다음과 같다.The minimum number of hits for peeling and surface scratches is as follows.

Figure kpo00004
Figure kpo00004

Claims (1)

외면에 니켈도금층을 형성함을 특징으로한 FRP제 야구용 배트.A baseball bat made of FRP characterized by forming a nickel plated layer on the outer surface.
KR7601607A 1976-06-30 1976-06-30 Baseball bat made of f.r.p. KR800000467B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR7601607A KR800000467B1 (en) 1976-06-30 1976-06-30 Baseball bat made of f.r.p.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR7601607A KR800000467B1 (en) 1976-06-30 1976-06-30 Baseball bat made of f.r.p.

Publications (1)

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KR800000467B1 true KR800000467B1 (en) 1980-05-29

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KR7601607A KR800000467B1 (en) 1976-06-30 1976-06-30 Baseball bat made of f.r.p.

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