CN106854736A - Iron-based low-density golf club head stainless steel alloy and its manufacture method - Google Patents
Iron-based low-density golf club head stainless steel alloy and its manufacture method Download PDFInfo
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Abstract
The present invention discloses a kind of iron-based low-density golf club head stainless steel alloy and its manufacture method.The iron-based low-density golf club head stainless steel alloy uses material for iron club, and composition is included：17.5~18.8wt% of chromium content, 9.5~10.5wt% of manganese content, 2.5~3.6wt% of nickel content, 1.5~2.5wt% of silicone content, 0.05~0.09wt% of carbon content, balance of iron, and inevitably trace alloying element.Its alloy feature：Possess corrosion resistance and high-elongation, and density between ρ=7.42~7.62g/cm3, bulb design space can be increased.After above-mentioned component alloy was through the solution treatment of 1050 ± 50 DEG C/1~2 hour, any Ageing Treatment need not be subsequently carried out, can obtain alloy structure is：Ferrite (α)+austenite (γ) double structure tissue, wherein alpha proportion is between 25~40%, and possess tensile strength 630-900MPa, yield strength 420-600MPa, and the engineering properties of the high-elongation of 40-55%, while also having the corrosion resistance of salt fog resistance (NaCl) experiment.
Description
Technical field
It is the invention relates to a kind of alloy structure：With ferrite (α)+austenite (γ) double structure group
Knit, ferrite (α) ratio is between (5~40%, and yield strength is between 420-600MPa, high-elongation
(40-55%), with corrosion resistance, while density is between ρ=7.42~7.62g/cm3, particularly closing what one kind can increase
Plus the alloy of golf club head iron club design space.
Background technology
Golf is the motion that a kind of utilization club is thrown ball into hole, and primitive rule is by golf
Ball is kicked off in serving position, overcome every nature or artificial barrier, in greens by ball push-in ad-hoc location
In hole, count it and use bar number, a ball match amounts to 18 holes (bar of par 72), add up gross score the lowest
For winning.
Golf clubs the whole series ball at most must not exceed 14, according to court demand and different strike purposes,
It is broadly divided into rod, iron and push rod three major types, is briefly presented below.
1. from opportunity to need long term distance square stance, it may be allowed to larger mistake and hits rate rod (Wood)；
Rod can be divided into two kinds of rod of kicking off (Driver) and Fairway Woods (Fairway) again.
2. iron is then ball to be hit into upper greens or is selected when ball falls into barrier from opportunity, and its main demand is
Precisely effective batting, while obtaining distance of acing；Iron according to number be divided into Long Irons, middle irons,
Shot Irons, wedge and pitching wedge, or even mixed pole (cored iron head) etc. are several.
3. push rod is exclusively used in being batted in greens, and its main demand is the stabilization and balance of square stance.Push rod is then
Steady D types of the low batting of center of gravity, preferable with off-center hits feel preferably L-type, off-center hits course of action can be divided into
Pin types, T-shaped four kinds of forms that center hits course of action is straight.
To adapt to the change of different alleys, therefore, also there is different angles and chi in the head of different numbers
Very little specification, it is as shown in the table.
| Numbering | Club title | Pole face gradient | Shaft gradient | Ballbar length (inch) | Swing distance (code) |
| Driving Iron | 16 | 55 | 39.5 | 190~210 | |
| Mid Iron | 19 | 56 | 39.0 | 170~200 | |
| Mid Mashie | 22 | 57 | 38.5 | 160~180 | |
| Mashie Iron | 26 | 58 | 38.0 | 150~170 | |
| Mashie | 30 | 59 | 37.5 | 140~160 | |
| Spade Mashie | 34 | 60 | 37.0 | 130~150 | |
| Mashie Niblick | 38 | 61 | 36.5 | 120~140 | |
| Ditching Niblick | 42 | 62 | 36.0 | 110~130 | |
| Niblick | 46 | 63 | 35.5 | 100~120 | |
| Pitching Wedge | 50 | 64 | 35.5 | Within 110 | |
| Second Wedge | 54~64 | 64 | 35.0 | Within 80 | |
| S(SW) | Sand Wedge | 54~58 | 64 | 35.0 | Within 90 |
| A | Chipper | 20~35 | 65 | 34.5 | Within 50 |
Court batting is stipulated according to United States Golf Association (USGA, United States Golf Association)
Specification and ball specification, golf club mainly limit bulb：
1. the size specification of ball：Shaft overall length have to be between 18 inch to 48 inch.Bulb heel and shaft center
Plan range where line and batting horizontal direction must not exceed 0.625 inch.When in normal address position,
Club shaft axle center and the center line perpendicular through bulb bottom, need to press from both sides 10 degree of angles.Club shaft axle center with hit
Course of action line both sides angle, lean forward most 20 degree or after lean forward most 10 degree.Iron bulb root to toe must
More than striking surface to back total depth, dimensions above limits the design feature including any permission to palpus total length.
2. bulb moment of inertia (Moment of Inertia, MOI), this parameter is higher to represent that object is more difficult to be twisted.
International norm limiting value must not exceed the moment of inertia 5900gcm2Additional 100gcm2Test admissible error.
3. characteristic time (Characteristic Time, CT), main to limit kick off wood golf and golf
The time of bulb contact, it is impossible to more than 239 μ s, (μ s of the margin of error 257)；
4. the striking surface for limiting bulb must be single material.
Therefore, golf club is to reach the balance for swinging, substantially bulb weight all within the specific limits,
That is, there is the limitation of fixed value in bulb weight.Additionally, the design of golf club head, is broadly divided into moulding work(
Can design (exterior design or adopt multicomponent material be composited), and the design of material for developing different mechanical properties.
In recent years the development trend of golf club head external form, mainly has：
1. lightweight with match somebody with somebody principal characteristic：Arranged in pairs or groups through different materials, change bulb distribution of weight, such as：(1) profit
With high-density tungsten ferro-nickel alloy (conventional density about 10,14,17g/cm3) as balancing weight, it is whole to reduce bulb
Body position of centre of gravity, improves ball flight angle；Or (2) top cover is with the carbon fiber of lighter weight or thinning honeycomb fashion,
Weight top cover weight is reduced, part mass is can tune to bottom；(3) high intensity and low-density alloy are used,
Increase bulb volume hits rate to reduce mistake.
2. uneven thickness scope of attack design：Due to characteristic time and the batter's box of the bulb scope of attack, batting face curvature,
Sphere thickness and hardness are related.Therefore, in recent years, scope of attack size design starts to develop the uneven thickness scope of attack,
Can be divided into：Variable face thickness (Variable Face Thickness) and reduction thickness (Graduation Reduced
Thickness) two ways, its main mesh is to increase sweetspot area, reduces mistake and hits rate.
3. adjustable design：According to USGA specifications, in the ball used on court, must be for single rigid body (no
It is tear-away), therefore ball size can not change again.In ball design in recent years, beginning gradually develops, and uses
Person can the voluntarily nose heave heart of breaking pitch, the moment of inertia, left-right rotary corner etc..Hitter can according to weather condition before entering the court,
Function and the characteristics such as adjustment club counterweight and face angle.
With regard to design of material aspect, material for golf bar head is mainly emphasized：(1) high-tensile and/or extension high
Rate is combined；(2) the difference combination of the alloy of different densities, or different densities；(3) low young's modulus, to reach
Change the different bulb moulding strike effect different from generation, to meet the demand of striker.Hereinafter, with regard to ball
The Materials trend of head, is presented below：
1. kick off rod：Mainly based on titanium alloy or precipitation hardening type stainless steel, because kicking off rod to ask increase
Hitting region, therefore generally using high specific strength material (ratio of intensity and density).Wherein the utilization of titanium alloy is more
Account for 80%.At present, titanium alloy is applied to golf club head, nearly 20 kinds alloys, such as：Ti-3Al-2.5V、
Ti9, Ti64, Ti811, Ti1023, Ti1553, Ti15333, Ti-22V-4Al, 2041, SP700, etc..
2. Fairway Woods：Fairway Woods size is small compared with rod of kicking off, and low-density or CT high are designed emphatically, therefore
Material selection is main based on high intensity, based on precipitation hardening type stainless steel.At present, it is main to use numb field
Swage or precipitation hardening type material are dissipated, including：455SS、465SS、475SS、AM350、AM355、
15-5PH, 15-7PH, 17-4PH, M300, X25, X30 etc..
3. iron：Start to have successively within 2000 to be applied on iron club using other titanium alloys, but by finance
Storm impact, started titanium alloy and reduces successively to 2005 or so；Thereafter in reduces cost and exploitation
Difficulty begins with other novel alloys and is added into, gradually higher with intensity, and engineering properties is presented high specific strength and takes
To or the stainless steel that is orientated of high-elongation as golf iron head material, such as 450SS and 455SS,
ASTM71 and 475SS.In addition, carbon steel series material is also widely used for iron club, though specific strength is relatively low
But there is relatively good elongation percentage (22~38%), only, its shortcoming need to impose plate surface treatment easily to get rusty,
Such as：Nickel plating or chromium plating.It is wherein most long by use time to forge soft iron S25C.Processability is being considered with casting
Make under implementations, 8620 low-carbon alloy steels that begin for 2000 are widely used.So, it is to increase from 2010
Plus different iron clubs, with different hardness and bar portion adjustable rod feature, hardening energy S45C higher and 4140
It is applied to successively on iron head material.To overcome the iron system easy problem of rustiness of carbon steel or low alloy steel, stainless steel
Be widely adopted, therebetween again with 17-4PH precipitation hardening types stainless steel be main material, for cost viewpoint,
Also 431SS is used.Commercialization golf iron head material is mainly with iron system carbon steel or low univalent stainless steel at present
It is main, iron club ferrous material is commonly used, mainly have：S20C, S25C, S30C, 8620,4140 etc..Please join
Shown according to Fig. 1：Commercial golf club head iron club material yield strength conventional at present and elongation percentage value.
4. push rod：Primary concern batting feels that main development is exterior design, is presented various on material selection
Property, have no fixed material.More based on soft metal, as fine copper, brass, bronze, beryllium copper, or aluminium are closed
Gold, such as 6061,7075, A380.In addition to aluminium alloy, copper alloy, mild steel is also used.
In general, the design of golf club head, is divided into external form function and is designed with material function；And with regard to material
For design, including：Different tensile strength are combined with elongation percentage, different densities material, from different Young systems
Number.For golf iron head, by early stage with wooden so that using ferrous alloy material now, its is close
Degree is about in 7.80~7.90g/cm3(also there are other alloy systems to be used therebetween, only manufacturing process and batting benefit
On, all there is unfavorable factor, therefore nobody uses gradually).Considering engineering properties, corrosion stability and density case
Under, in bulb material development process, it is a big emphasis to have engineering properties concurrently with density.But, due to bulb weight
Amount limitation, for teenager, women or old hitter, can usually lay particular stress on because of bulb weight, and cause batting
Loss；Therefore, generally adopt to reduce the size in ball design, improve its batting mistake and hit rate.Therefore, ball is reduced
Head material density 5% turns into one of major demands of bulb material development in recent years, that is, wish to be same as general male
The ball size of hitter, weight about mitigates 5%, can cause that teenager, women or old hitter can reduce batting
Rate is hit in mistake.Additionally, in impact, if the yield strength of material is not enough, being sent out after ball use will be caused
It is raw, shaft angle change；And pass by, iron club thickness is larger, about 2.5~3.8mm, therefore problem on deformation is examined
Consider less.Only, current bulb design, strike towards thinning design, if therefore alloy yield strength be less than
400MPa, bulb will have the doubt of deformation.
Summary, if tool corrosion stability iron system material can be developed, yield strength is more than 400MPa, density
ρ=7.50g/cm3Left and right, and elongation percentage is big by 40%, then compare with forging soft iron (S25C), 5% weight of reducible mitigation
Amount.
In golf field, it is ρ=7.5 ± 0.05g/cm that researcher is had no in the past for density3, opened
Hair.And siderochrome manganese alloy category is directed to, part researcher, such as：
Chinese publication number CN1226442C, its claim：A kind of austenite stainless steel of low nickel-content,
It is characterized in that：The austenite stainless steel of the low nickel-content comprising a percentage by weight between 0.03 with
Element silicon, the percentage by weight of carbon, a percentage by weight between 0.12 between 0.2 and 1.0
Chromium between 14.0 and 16.0 of manganese element, a percentage by weight between 7.5 and 10.5,
Nickel element of one percentage by weight between 1.0 and 5.0, a percentage by weight between 0.04 and 0.25 it
Between copper between 1.0 and 3.5 of nitrogen, a percentage by weight, various trace elements, and flat
Molybdenum element is comprised at least in the ferro element of weighing apparatus, and the trace element, meanwhile, the austenite is stainless
One high temperature ferrite of steel is mutually worth no more than 8.5, and the high temperature ferrite is mutually worth=6.77x (chromium %t+ molybdenums %
T+1.5x silicon %t) -4.85x (nickel %t+30x carbon %t+30x nitrogen %t+0.5x manganese %t+0.3x copper %t) -52.75, its
Middle %t represents percentage by weight.
Chinese publication number CN100345994C, its claim：A kind of austenite nonmagnetic steel, its feature
It is that the nonmagnetic steel contains manganese 20~26%, chromium 2~10%, aluminium 1~4%, carbon by weight percentage
0.18~0.24%, rare earth element 0.1~0.2%, sulphur≤0.04%, phosphorus≤0.04%, its balance of iron.
TaiWan, China number of patent application 103106503, China Patent Publication No. CN201410061064, the U.S.
Number of patent application 14/188,754：
A kind of golf driver head alloy with close proportion, composition is included：By weight percentage
3.0~5.5% silicon, 8.0~10.5% manganese, 14.5~17.0% chromium, 3.5~6.0% nickel, nubbin is
Iron and inevitable impurity are constituted.The golf driver head alloy, wherein, the golf driver head is closed
The material proportion of gold is 7.4~7.6g/cm3.The tensile strength of the alloy is 774~915MPa, yield strength
It is 352~493MPa, and considering without elongation percentage characteristic.
The content of the invention
It is a primary object of the present invention to provide a kind of iron-based low-density golf club head stainless steel alloy and its
System makes method, and preferably as the use material of the iron club in golf club head, its composition is with percentage by weight
Meter is included：17.5~18.8wt% of chromium content, 9.5~10.5wt% of manganese content, 2.5~3.6wt% of nickel content, silicon contain
1.5~2.5wt% of amount, 0.05~0.09wt% of carbon content, balance of iron, and inevitably microalloy unit
Element.Its alloy feature：Possess corrosion resistance and high-elongation, and density p between 7.42~7.62g/cm3(gram/
Cubic centimeter), bulb design space can be increased.Above-mentioned component alloy was through the solid solution of 1050 ± 50 DEG C/1~2 hour
After treatment, any Ageing Treatment need not be subsequently carried out, can obtain alloy structure is：Ferrite (α)+austenite (γ)
Double structure tissue, wherein alpha proportion between 25~40%, and possess tensile strength 630-900MPa (MPa),
Yield strength 420-600MPa, and the high-elongation of 40-55% engineering properties, while also have salt fog resistance
(NaCl) corrosion resistance of experiment.
It is that the above of the invention can be become apparent, preferred embodiment cited below particularly, and coordinate institute
Accompanying drawings, are described in detail below：
Brief description of the drawings
Fig. 1 is existing golf club head iron club Material Strength and elongation percentage figure.
Fig. 2 a are that Cr alloying elements influence on tensile strength.
Fig. 2 b are that Si alloying elements influence on tensile strength.
Fig. 2 c are that Ni alloying elements influence on tensile strength.
Fig. 2 d are that Mn alloying elements influence on tensile strength.
Fig. 2 e are that C alloy element influences on tensile strength.
Fig. 3 a are that Cr alloying elements influence on yield strength.
Fig. 3 b are that Si alloying elements influence on yield strength.
Fig. 3 c are that Ni alloying elements influence on yield strength.
Fig. 3 d are that Mn alloying elements influence on yield strength.
Fig. 3 e are that C alloy element influences on yield strength.
Fig. 4 a are that Cr alloying elements influence on elongation percentage.
Fig. 4 b are that Si alloying elements influence on elongation percentage.
Fig. 4 c are that Ni alloying elements influence on elongation percentage.
Fig. 4 d are that Mn alloying elements influence on elongation percentage.
Fig. 4 e are that C alloy element influences on elongation percentage.
Fig. 5 a are influence of the chromium equivalent to ferrite percentage.
Fig. 5 b are influence of the nickel equivalent to ferrite percentage.
Fig. 6 is alloy material intensity of the present invention and elongation percentage figure.
Specific embodiment
The explanation of following embodiment is, with reference to additional schema, to be used to illustrate the present invention and may be used to what is implemented
Specific embodiment.Furthermore, the direction term that is previously mentioned of the present invention, such as upper and lower, top, bottom, it is preceding,
Afterwards, left and right, inside and outside, side, surrounding, center, level, transverse direction, vertically, longitudinally, axially,
Radially, the superiors or orlop etc., are only the directions with reference to annexed drawings.Therefore, use in the direction for using
Language is to illustrate and understand the present invention, and is not used to the limitation present invention.
Alloy of the invention with the mild steel of AISI 1008,70% ferrochrome, pure nickel, electrolytic manganese, pure silicon, according to
Proportioning modulation.Smelted through the hot investment casting of air high frequency smelting furnace, molten steel temperature is set as, in 1650 DEG C, pouring
In casting from 1350 DEG C of shell moulds, through 1200 DEG C of homogenize process 4 hours after smelting, then 1050 DEG C are carried out, hold temperature
The laggard water-filling of solution treatment in 1 hour is quenched.
Refer to shown in table 1 below, it discloses the several different embodiments of the present invention, design altogether 12 kinds of ferrites (α)+
The double phase stainless steel alloy of austenite (γ), respectively 9 kinds embodiments and 3 kinds of reference examples, composition are included：
17.5~18.8wt% of chromium content, 9.5~10.5wt% of manganese content, 2.5~3.6wt% of nickel content, silicone content
1.5~2.5wt%, 0.05~0.09wt% of carbon content, balance of iron, and inevitably trace alloying element.
Afterwards, using universal testing machine with 2.5x10-2The speed of mm/min, carries out tension test, to obtain each machinery
Property.Finally using electronic weighbridge by the alloy test piece weighing of fixed volume, then by its quality and the ratio of volume
Value is obtained, as density.Averaged again after alloy 10 groups of data of measurement of each numbering averagely close as alloy
Degree.
Table 1
Referring again to table 1, alloy component range of the present invention, engineering properties and density.Initial alloy of the present invention
Design consideration elongation percentage and yield strength, α Phase Proportions are to alloy mechanical properties in learning alloy by many experiments
With influence.For alloy mechanical properties, the lifting of α Phase Proportions contributes to strength of alloy, subdues by force
Degree rises；So, the lifting of α Phase Proportions can then cause alloy elongation percentage to decline.It is too high for alloying element
Chromium content ferrite Phase Proportion can be made more than 40% and then cause elongation percentage not enough；It is too low, numb field can be produced
Iron phase is dissipated so that alloy embrittlement.Therefore, alloy chromium content control of the present invention is between 17.5~18.8wt%.Separately
Outward, stomatal limiting value is prevented so that contraction increases considering, and lifting molten steel flow is improving casting
Castability.Therefore, alloy composition of the present invention adds the element silicon for being all ferrite stable element.But, fertilizer
Granulated iron is met and being lifted and causing elongation percentage not enough with silicone content, and the too low then ferrite Phase Proportion of silicone content declines
Alloy yield strength cannot effectively be lifted.Therefore, alloy silicon content of the invention be controlled in 1.5~2.5wt% it
Between, to represent the optimum performance of alloy.As shown in Table 1, the yield strength (YS) of numbering the 1st to 18 is equal
More than 400MPa.The elongation percentage (EL) that numbering the 1st to 12 is more than 40%, numbering the 13rd to 18
Elongation percentage (EL) is then less than 40%.Additionally, nickel element content and manganese element content are to engineering properties effect tendency
It is not notable.The iron club that embodiment of the present invention alloy is molded, with corrosion stability, also with yield strength
Up to 400MPa.Tested 48 hours through the salt fog resistance of 5%NaCl and golf bombards 3000 hairs and tests also equal
It is qualified.
Closed by proportion respectively for various addition alloying elements and its for composition of the invention below
The influence of golden property is illustrated one by one：
Chromium (Cr)：The present invention initially considers yield strength and elongation percentage, therefore chromium is added in alloy, main
Being chromium for the ferrite stable element in alloy and lifting alloy corrosion stability for syllabus, is control alloy knot
Structure is two-phase microstructure：Austenite (γ) and ferrite (α), and ferrite ratio is set between 20~40%,
Therefore, alloy chromium content control of the present invention is between 17.5~18.8wt%.Because chromium content is less than 17.5wt% meetings
Make alloy chromium equivalent relatively low, produce part marquensite tissue so that alloy elongation percentage is relatively low, such as Fig. 2 a, figure
Shown in 3a；So, chromium content can then make that ferrite Phase Proportion is too high to cause the extension of engineering properties higher than 19wt%
Rate declines Fig. 4 a.
Silicon (Si)：When adding silicon in component alloy of the invention, be conducive to preventing stomatal limiting value, promote and receive
Contracting is acted on, and increases molten steel flow, and can increase the castability of alloy-steel casting, in addition, silicone content is higher than
1.5wt% maintains more than 400MPa to ensure alloy yield strength, as shown in Figure 3 b.So, silicone content is higher than
2.5wt% can then make ferrite Phase Proportion it is too high lifting cause elongation percentage to decline, as shown in Figure 4 b.Therefore, originally
The component alloy silicone content of invention is controlled in 1.5~2.5wt%, and tensile strength maintains more than 600Mpa, such as
Shown in Fig. 2 b, not only help improve alloy-steel casting castability, more can elevating mechanism value yield strength.
Manganese (Mn)：Manganese easily coexists with iron, and is easily combined with sulphur, can improve alloy hot-short as desulfurizing agent
Property, furthermore manganese can also remove the oxide in alloy；And the austenite phase in component alloy can be stablized, because
This, if component alloy of the invention can add the manganese of 9/5~10.5wt%, it will help the casting of lifting alloy-steel casting
The improvement of the property made and fragility, while austenite ratio is controlled, refering to Fig. 2 d, Fig. 3 d and Fig. 4 d manganese elements
Influence on strength of alloy of the present invention, yield strength and elongation percentage.
Nickel (Ni)：Alloy of the invention adds nickel, predominantly control nickel element make its structure for ferrite phase and
Austenite phase structure ratio, the influence refering to Fig. 2 c, Fig. 3 c and Fig. 4 c nickel elements on alloy of the present invention,
When nickel content is less than 2.5wt%, the austenite of the component alloy will be made mutually less, and make its elongation percentage low
In minimum predetermined elongation percentage of the invention；When nickel content is more than 3.6wt%, the fertile of the component alloy will be made
This field iron phase ratio is higher, but its mechanical strength can be made to be less than predetermined mechanical strength of the invention relatively；In addition,
To make component alloy represent the performance of optimal alloy, the nickel content of component alloy of the invention, collocation manganese unit
The addition of element, should control between 2.5~3.6wt%.
Carbon (C)：Carbon is substantially the indispensable element of general ferrous materials, except forming carbide
Outward, it is also the stable element of austenite phase, in component alloy of the invention, when carbon content is too high,
Will be formed excessively with thick carbide, the corrosion resistance of unfavorable component alloy, refering to Fig. 2 e, Fig. 3 e and Fig. 4 e
Influence of the carbon on strength of alloy of the present invention, yield strength and elongation percentage.Therefore, of the invention group
Into alloy restriction carbon between 0.05-0.09wt%.
By the quenched of the addition of above-mentioned each alloying element and material characteristic, it can be deduced that meet the height of demand
Golf ball head iron club material.Refer to shown in Fig. 6, be golf club head iron club Material Strength of the present invention
With elongation percentage figure, relative to current material, yield strength the higher person generally its elongation percentage is low, and respectively less than 20%.
And elongation percentage current material high, its yield strength is performed poor, less than 400MPa.
In sum, component alloy of the invention, is by 17.5~18.8wt% of chromium content, manganese content
9.5~10.5wt%, 2.5~3.6wt% of nickel content, 1.5~2.5wt% of silicone content, 0.05~0.09wt% of carbon content,
Balance of iron content and inevitable trace alloying element.Via the composition and ratio of above element, it is calculated
Chromium equivalent and nickel equivalent, control ferrite (α) in the percentage shared by alloy of the present invention, and can be at above-mentioned group
When forming golf iron head into alloy, its alloy feature：Possess yield strength up to 420-600MPa, and
The high-elongation of 40-55%, while density (ρ) is between 7.42~7.62g/cm3Also there is corrosion proof engineering properties.
The present invention is been described by by above-mentioned related embodiment, but above-described embodiment is only to implement the present invention
Example.It must be noted that, it has been disclosed that embodiment be not limiting as the scope of the present invention.On the contrary,
The modification and impartial setting for being contained in the spirit and scope of claims are included in the scope of the present invention
It is interior.
Claims (4)
1. a kind of manufacture method of iron-based low-density golf club head stainless steel alloy, it is characterised in that comprising following
Step：
A component alloy is provided to include by weight percentage：Chromium content 17.5~18.8%, manganese content
9.5~10.5%, nickel content 2.5~3.6%, silicone content 1.5~2.5%, carbon content 0.05~0.09%, remaining
It is iron to measure, and inevitably trace alloying element is smelted in smelting furnace, and alloy leads to after smelting
The solution treatment of 1050 ± 50 DEG C/1~2 hour is crossed, yield strength is obtained between 420-600 MPas, and prolong
Rate is stretched more than 40, and density is between 7.42~7.62 grams/cubic centimeter.
2. the manufacture method of the iron-based low-density golf club head stainless steel alloy as described in claim the 1, its
It is characterised by：The elongation percentage is between 40-55%.
3. a kind of iron-based low-density golf club head stainless steel alloy, it is characterised in that include by weight percentage：
Chromium content 17.5~18.8%, manganese content 9.5~10.5%, nickel content 2.5~3.6%, silicone content 1.5~2.5%,
Carbon content 0.05~0.09%, balance of iron, and inevitably trace alloying element, density between
7.42~7.62 grams/cubic centimeter.
4. the iron-based low-density golf club head stainless steel alloy as described in claim the 3, it is characterised in that：
Its yield strength is between 420-600 MPas, and elongation percentage is between 40-55%.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113235019A (en) * | 2021-05-20 | 2021-08-10 | 成都先进金属材料产业技术研究院股份有限公司 | Fe-Mn-Al-N-S series high-nitrogen low-density free-cutting steel bar and preparation method thereof |
Citations (5)
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| CN1504587A (en) * | 2002-11-29 | 2004-06-16 | 大田精密工业股份有限公司 | Low density iron base material for golf bar head |
| CN101121995A (en) * | 2007-09-06 | 2008-02-13 | 朱育民 | Novel martensite system stainless steel material and its preparation method and application |
| CN103184389A (en) * | 2011-12-30 | 2013-07-03 | 复盛应用科技股份有限公司 | golf club alloy |
| CN103243274A (en) * | 2012-02-02 | 2013-08-14 | 大田精密工业股份有限公司 | Fe-Cr-Ni alloy of golf club head |
| CN104018097A (en) * | 2013-02-28 | 2014-09-03 | 复盛应用科技股份有限公司 | Alloy for golf club heads |
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- 2015-12-08 CN CN201510642855.9A patent/CN106854736B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1504587A (en) * | 2002-11-29 | 2004-06-16 | 大田精密工业股份有限公司 | Low density iron base material for golf bar head |
| CN101121995A (en) * | 2007-09-06 | 2008-02-13 | 朱育民 | Novel martensite system stainless steel material and its preparation method and application |
| CN103184389A (en) * | 2011-12-30 | 2013-07-03 | 复盛应用科技股份有限公司 | golf club alloy |
| CN103243274A (en) * | 2012-02-02 | 2013-08-14 | 大田精密工业股份有限公司 | Fe-Cr-Ni alloy of golf club head |
| CN104018097A (en) * | 2013-02-28 | 2014-09-03 | 复盛应用科技股份有限公司 | Alloy for golf club heads |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235019A (en) * | 2021-05-20 | 2021-08-10 | 成都先进金属材料产业技术研究院股份有限公司 | Fe-Mn-Al-N-S series high-nitrogen low-density free-cutting steel bar and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN106854736B (en) | 2018-09-11 |
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