CN1027382C - Manufacturing method for fine cast of Fe-Mn-Al alloy - Google Patents
Manufacturing method for fine cast of Fe-Mn-Al alloy Download PDFInfo
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- CN1027382C CN1027382C CN92105854A CN92105854A CN1027382C CN 1027382 C CN1027382 C CN 1027382C CN 92105854 A CN92105854 A CN 92105854A CN 92105854 A CN92105854 A CN 92105854A CN 1027382 C CN1027382 C CN 1027382C
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Abstract
The present invention discloses a manufacturing method for precision castings of Fe-Mn-Al alloy. Alloy heated and fused to the temperature of 1400 to 1420 DEG C is injected into ceramic molds which have wet strength of 350 psi at the temperature of 1300 to 1320 DEG C, dry strength of 460 psi and air penetrability of 6.5*10<-3>cm<3>/sec. cm<2>. aq. A cooled and solidified main body part 3 is welded with a bottom 5 by current of 40 to 60 amperes in a TIC way. Solids are smelted for one to two hours at the temperature of 1030 to 1050 DEG C, and aging treatment is carried out for one to two hours at the temperature of 450 to 550 DEG C. Precision castings which have the characteristics of low cost of the raw materials of the alloy, high tenacity, high mechanical strength, favorable corrosion resisting properties, favorable attrition resistance and no damage to Fe-Mn-Al alloy can be obtained. Thin-section castings which have the advantages of light specific weight, complicated shape and uniform wall thickness can be cast in a precision way.
Description
The present invention relates to utilize iron-manganese-aluminium alloy to produce and resemble the method for the thin-walled fine cast of Fe-Mn of the complicated shape of a golf ball metallic rod class and became uneven.
Resemble the fine cast of Fe-Mn of a metallic rod class of golf club in the prior art, using nickel-chromium (Ni-Cr) mostly is stainless steel etc.In addition, also just trying out high tenacity and physical strength height, solidity to corrosion is superior, and the iron-manganese-aluminium alloy of wear resistance is arranged.
Yet, with the nickel-chromium (Ni-Cr) of above-mentioned prior art is the metallic rod head of the golf club made of stainless steel, the scope of attack undercapacity that hits golf ball is arranged, the possibility that damage aforementioned metal bar head is arranged, because the shock absorption when hitting is poor, problems such as it is big to have percussive sounds, and proportion is also big.In addition, about iron-manganese-aluminium alloy aspect, because various researchs are arranged, though can know a little aforesaid advantages, still have that coefficient of thermal expansion is big, thermal conductivity is low, and when this alloy of melting, easily oxidation, the hindering factor on the casting process that has fragility to organize partial crystallization etc. is formed in crystallization, and it is still indeterminate that the cooperation of the technical material of this alloy casting, the management of casting process and the thermal treatment of foundry goods etc. can influences the characteristic aspect of goods, and the not problem of establishment is still arranged on foundry engieering.
Because the problems referred to above, the objective of the invention is propose to use than nickel-chromium (NI-Cr) is the alloy of the inexpensive iron-manganese of stainless cast steel part-aluminium-(Fe-Mn-Al), and produces the casting method of complicated shape and the uneven thin-section casting of foundry goods section thickness under the advantageous characteristic that does not undermine iron-manganese-aluminium alloy.
The casting method of iron-manganese of the present invention-aluminium alloy is to consist of carbon (C) 0.5～2.0 weight %, manganese (Mn) 25～36 weight %, aluminium (Al) 5～10 weight %, silicon (Si) 0.5～1.5 weight %, molybdenum (Mo) 0.5～1.5 weight %, on the casting process of the precision casting of the iron-manganese-aluminium alloy of the residual amount of iron (Fe), first rapid heating is fused the above-mentioned alloy to 1400～1420 ℃, inject and be preheated to 1300～1320 ℃ Tao Monei, casting assembly with the plural number of this Tao Mo gained welds with the inert-gas tungsten arc welding formula, welding current is 40～60 amperes, the foundry goods that has welded is done solutionizing and was handled 1～2 hour under 1030～1050 ℃, again through 1～2 hour ageing treatment of 450～550 ℃; The feature of above-mentioned Tao Mo is that thickness is about 5mm, and wet strength is 2411.5KPa(350psi), dry strength is 3169.4KPa(460psi) and air penetrability be 6.5 * 10
-3Cm
-3/ sec.cm
2.aq.
The casting method of iron-manganese of the present invention-aluminium alloy, to consist of carbon (C) 0.5～2.0 weight %, manganese (Mn) 25～36 weight %, aluminium (Al) 5～10 weight %, silicon (Si) 0.5～1.5 weight %, molybdenum (Mo) 0.5～1.5 weight %, the residual amount of iron (Fe) and manage the alloy raw material of cooperation, give the rapid heating fusion to 1400～1420 ℃, inject and be preheated to 1300～1320 ℃ Tao Monei, the aforementioned alloy of fused molten steel flows good in this Tao Monei, and can prevent that fragility from organizing partial crystallization.Therefore, making aforementioned Tao Mo thickness is 2411.5KPa(350psi for about 5mm, wet strength), dry strength is 3169.4KPa(460psi) and air penetrability be 6.5 * 10
-3Cm
-3/ sec.cm
2.aq, can prevent that foundry goods from generating be full of cracks, fracture phenomenon in solidifying.So, utilize the various casting assemblies of casting and getting, weld in the inert-gas tungsten arc welding mode, welding current is 40～60 amperes, can prevent to generate be full of cracks or phenomenons such as crack and pin hole near the welding bead.Therefore, will do solutionizing with 1030～1050 ℃ through the foundry goods of welding and handle 1～2 hour, and can suppress cast(ing) surface and generate zone of oxidation.With 450～550 ℃ of ageing treatment of doing 1～2 hour, can get high-intensity foundry goods again.
Being simply described as follows of the used drawing of the present invention:
Fig. 1 is the front elevation of the metallic rod head of golf club among one of the iron-manganese of the present invention-fine cast of Fe-Mn-Al alloy castmethod embodiment.
Fig. 2 is the side-view of the metallic rod head of golf club among one of the iron-manganese of the present invention-fine cast of Fe-Mn-Al alloy castmethod embodiment.
Fig. 3 is the back view of the metallic rod head of golf club among one of the iron-manganese of the present invention-fine cast of Fe-Mn-Al alloy castmethod embodiment.
Fig. 4 is the information drawing of the solid melt processed of the metallic rod head of golf club among one of the iron-manganese of the present invention-fine cast of Fe-Mn-Al alloy castmethod embodiment.
Fig. 5 represents the information drawing of solid melt processed of metallic rod head of the golf club of nickel-chromium steel system now commonly used.
Fig. 6 represents the information drawing of solid melt processed of metallic rod head of the golf club of another kind of commonly used nickel-chromium steel system.
The Arabic numerals that have radix point among Fig. 1,2,3 are represented thickness distribution, and unit is mm.
Fig. 1 to Fig. 3 expresses the metallic rod head of the golf club of one of the meticulous castmethod of iron-manganese of the present invention-aluminium alloy embodiment.
1 is the metallic rod head of golf club among the figure, this metallic rod 1 is by connection section 2 prominent on the rear of the opening with chimeric golf ball bar body (not giving expression among the figure), right flank is the body 3 that hemispherical outstanding and its curved surface arrives the place ahead slightly, left surface (not showing among the figure) is for hitting the concave arc shape scope of attack 4 of golf ball, and the bottom 5(that contacts with ground is shown in Fig. 2) form.
Below the manufacture method of the metallic rod head of the foregoing description is done more detailed narration.
The about 5mm of thickness, the wet strength 2411.5KPa(350psi that make according to shell moulding), dry strength is 3169.4KPa(460psi) and air penetrability 6.5 * 10
-3Cm
-3/ sec.cm
2.aq Tao Mo, heating earlier remains on 1300～1320 ℃.Manage carbon (C) 0.5～2.0 weight %, manganese (Mn) 25～36 weight %, aluminium (Al) 5～10 weight %, silicon (Si) 0.5～1.5 weight %, molybdenum (Mo) 0.5～1.5 weight %, the residual amount of iron (Fe) of consisting of that make in addition, to cooperate alloy raw material.
When this alloy raw material of heating melting, prevent fused raw material because oxidation generates slag film (slag inclusion), and be cast into shortcomings such as microstructure segregation that Tao Monei just causing or be full of cracks in the way of condensation, for making aforementioned fused raw material molten steel can flow in the aforementioned mold well, when melting arrives 1200 ℃, utilize rapidly type of heating with about 20-25 minute heating fusion alloy to 1400～1420 ℃, when arriving 1400-1420 ℃, be cast into aforementioned Tao Monei immediately.
When the bottom periphery that splice the body 3 and the bottom 5 of welding cooled and solidified; weld with adding material mode not; if welding current is too little or too big; then can cause and to weld or near the hot tearing of welding bead; this is the different events with the body material of scolder; so welding current is controlled at 40～60 amperes, does not add material in the inert-gas tungsten arc welding mode and weld.
When the metallic rod after the welding 1 is heat-treated, as Fig. 5 and shown in Figure 6, utilize metallic rod that the heat treated nitrogen type of cooling of vacuum oven heat-treats 1, its surperficial oxide thickness is thin, and Rockwell hardness (HRC) is HRC32～36 when vacuum oven, when continuous oven HRC28～32, hardness is suitable, but impelling strength and physical strength variation, therefore, as shown in Figure 4, put into the high temperature continuous oven that temperature is maintained at 1030～1050 ℃ and did constant temperature thermal treatment 1～2 hour, and utilize shrend or oil quenching mode to give chilling, carry out solutionizing and handle, so that Rockwell hardness is HRC8～12.
Thereafter, after carrying out processing operations such as hue angle, fraising, impose 450～550 ℃ 1～2 hour ageing treatment again, Rockwell hardness can become HRC28～36.
The metallic rod of handling through this timeliness 1 can be utilized sandblast or shot-peening operation, removes the zone of oxidation of remained on surface, is coated with coating to make dry thickness of filming become 3～5 μ m, and carries out baking vanish and handle.
And the composition of aforementioned iron-manganese-aluminium alloy is advisable with carbon (C) 0.5～2.0 weight %, manganese (Mn) 32～36 weight %, aluminium (Al) 6～8 weight %, silicon (Si) 0.5～1.5 weight %, molybdenum (Mo) 0.5～1.5 weight %, the residual amount of iron (Fe).
Below aforesaid Tao Mo is given explanation.
Aforementioned Tao Mo for the molten steel that makes aforementioned fused alloy raw material does not generate slag, also prevents the crystal structure segregation, makes Tao Mo can keep high temperature, and need have can resistant to elevated temperatures resistivity against fire.In addition, since the condensation systolic pressure that is generated in the low cooling of thermal expansivity is big, thermal conductivity is low iron-manganese-aluminium alloy make generate be full of cracks or crack etc. on the metallic rod 1 before, this Tao Mo is had collapse diffusing character voluntarily.Therefore, the proportioning of this Tao Mo is as follows:
The first layer slurry: the zirconium powder+25%SO of 325 screen numbers
2Silicic acid glue
Facing sand: the zircon sand of 100 screen numbers
Second layer slurry: the Malaysia powder+25%SO of 200 screen numbers
2Silicon acid glue+4% Graphite Powder 99
Floor sand: 0.25～0.5m/m burns mill soil
The 3rd layer of slurry: the Malaysia powder+25%SO of 200 screen numbers
2Silicon acid glue+4% Graphite Powder 99
Floor sand: 0.25～0.5m/m burns mill soil
The 4th layer of slurry: the Malaysia powder+25%SO of 200 screen numbers
2Silicon acid glue+6% Graphite Powder 99
Floor sand: 0.5～1.0m/m burns mill soil
The castibility that the shell mould that is formed by above 5 layers fireproof slurry sand dipping lining contacts with molten alloy is best.
The effect of the foregoing description is to consist of carbon (C) 0.5～2.0 weight %, manganese (Mn) 25～36 weight %, aluminium (Al) 5～10 weight %, silicon (Si) 0.5～1.5 weight %, molybdenum (Mo) 0.5～1.5 weight %, the residual amount of iron (Fe), manage the alloy material of cooperation, through being dissolved to 1400～1420 ℃ fast, inject and be preheated to 1300～1320 ℃ Tao Monei, can prevent the slag that metal at high temperature generates owing to oxidation, the aforementioned alloy of fused molten steel flows good in this Tao Monei, can prevent the segregation of crystal structure.Therefore, make aforementioned Tao Mo thickness and be about 5mm, wet strength is 2411.5KPa(350psi), dry strength is 3169.4KPa(460psi) and air penetrability be 6.5 * 10
-3Cm
3/ sec.cm
2.aq.So utilizing the body 3 and the bottom 5 that cast and get is 40～60 amperes at welding current, is welded in open inert-gas tungsten arc welding welding mode, can prevent to generate be full of cracks or phenomenons such as crack and pin hole near the welding bead.Therefore, metallic rod 1 with welding, as shown in Figure 4, put into 900 ℃ of temperature environments 1030～1050 ℃ of following heat treated after 1～2 hour, with shrend or oil quenching mode chilling, make hardness become HRC8～12 through mountain solutionizing processing, processibility is good and hardness is low, through 1～2 hour ageing treatment of 450～550 ℃, can get good crystalline phase tissue, average compressive strength 2100kgf/mm again
2Above, all stronger metallic rod of toughness intensity and physical strength 1.
By nickel-chromium (Ni-Cr) commonly used is the characteristic such as the table 1 of the metallic rod head made of the meticulous castmethod of the metallic rod head made of stainless steel and iron-manganese of the present invention-aluminium alloy, and used test spare all belongs to cast material.(table 1 is seen the literary composition back)
By the fine cast of Fe-Mn manufacture method of iron-manganese of the present invention-aluminium alloy metallic rod 1, if with the nickel-chromium (Ni-Cr) that always uses is that the metallic rod head that stainless steel makes is compared, as shown in Table 1, via the present invention, high rigidity, high tenacity intensity and the physical strength that obviously can have iron-manganese-aluminium alloy characteristic, simultaneously can make light weight, the metallic rod that shock absorption is superior and percussive sounds is overcast 1.And, the goods of the metallic rod after baking vanish coating 1, the spray testing of 5% salt solution through the mountain also is found the solidity to corrosion more than 48 hours.
Manufacture method according to iron-manganese of the present invention-fine cast of Fe-Mn-Al alloy, to consist of carbon (C) 0.5～2.0 weight %, manganese (Mn) 25～36 weight %, aluminium (Al) 5～10 weight %, silicon (Si) 0.5～1.5 weight %, molybdenum (Mo) 0.5～1.5 weight %, the residual amount of iron (Fe) and manage the raw material of cooperation, be dissolved to 1400～1420 ℃ through rapid heating, inject and be preheated to 1300～1320 ℃ Tao Monei, the aforementioned alloy of fused molten steel flows good in this Tao Monei, and can prevent that fragility from organizing partial crystallization.Therefore, make aforementioned Tao Mo thickness and be about 5mm, wet strength is 2411.5KPa(350psi), dry strength is 3169.4KPa(460psi) and air penetrability be 6.5 * 10
-3Cm
3/ sec.cm
2.aq, can prevent that foundry goods from generating be full of cracks, fracture phenomenon in solidifying.So the various casting assemblies of gained are 40～60 amperes at welding current, are welded in the inert-gas tungsten arc welding mode, can prevent to generate be full of cracks or phenomenons such as crack and pin hole near the welding bead.Therefore, at 1030～1050 ℃, solutionizing was handled 1～2 hour, can suppress cast(ing) surface and generate zone of oxidation with the foundry goods of welding, and at 450～550 ℃, ageing treatment can get high-intensity foundry goods in 1～2 hour.Wait situation as can be known thus, iron-manganese-aluminium alloy with high tenacity, high mechanical strength, superior solidity to corrosion, wear resistant, in the characteristic that does not undermine these, can meticulously cast out is that the foundry goods that stainless steel makes has more high impact with nickel-chromium (Ni-Cr), the complicated shape of iron-manganese-aluminium alloy that proportion is also light, cost of material is also cheap and the uneven thin-section casting of section thickness of foundry goods.
Table 1
The inventive method steel nickel chrome (JIS 431) steel nickel chrome (JIS 630)
The bar head of the bar head system of the bar head system that makes
Tensile strength (kg
f/ mm
2) 87.5 76 80
Yield strength (kg
f/ mm
2) 67 60 65
Unit elongation (%) 24 15 16
Proportion 6.0 7.75 7.80
Hardness (HRC) 28～36 30～34 34～35
Impelling strength (kgfm/mm
2) more than 2400 more than 2000 more than 2200
The volume ratio of unit weight (V/W) 1(205cm
3/ 200g) 0.8(165cm
3/ 200g) 0.8(185cm
3/ 200g)
Shock absorption is good poor
The bump sound is greatly overcast
Claims (1)
1, the manufacture method of a kind of iron-manganese-fine cast of Fe-Mn-Al alloy, it is characterized in that, consist of carbon (C) 0.5～2.0 weight %, manganese (Mn) 25～36 weight %, aluminium (Al) 5～10 weight %, silicon (Si) 0.5～1.5 weight %, molybdenum (Mo) 0.5～1.5 weight %, the manufacturing process of the fine cast of Fe-Mn of the iron-manganese-aluminium alloy of the residual amount of iron (Fe), first rapid heating is fused the above-mentioned alloy to 1400～1420 ℃, inject and be preheated to 1300～1320 ℃ Tao Monei, casting assembly with the plural number of this Tao Mo gained welds in the inert-gas tungsten arc welding mode again, welding current is 40～60 amperes, the foundry goods that has welded is done solutionizing and was handled 1～2 hour under 1030～1050 ℃, again through 1～2 hour ageing treatment of 450～550 ℃; Above-mentioned Tao Mo, thickness is about 5mm, and wet strength is 2411.5KPa (350psi), and dry strength is that 3169.4KPa (460psi) and air penetrability are 6.5 * 10
-3Cm
-3/ sec.cm
2.aq.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP347543/91 | 1991-12-27 | ||
| JP3347543A JPH0699775B2 (en) | 1991-12-27 | 1991-12-27 | Precision casting method for iron-manganese-aluminum alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1069525A CN1069525A (en) | 1993-03-03 |
| CN1027382C true CN1027382C (en) | 1995-01-11 |
Family
ID=18390941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92105854A Expired - Fee Related CN1027382C (en) | 1991-12-27 | 1992-07-23 | Manufacturing method for fine cast of Fe-Mn-Al alloy |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0699775B2 (en) |
| CN (1) | CN1027382C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6617050B2 (en) * | 2001-10-19 | 2003-09-09 | O-Ta Precision Casting Co., Ltd. | Low density and high ductility alloy steel for a golf club head |
| US9433835B2 (en) | 2013-04-01 | 2016-09-06 | Acushnet Company | Golf club head with improved striking face |
| TWI715852B (en) * | 2018-07-11 | 2021-01-11 | 永鼎應用金屬股份有限公司 | Austenitic alloy steel |
| KR102227710B1 (en) * | 2018-11-26 | 2021-03-16 | 한국재료연구원 | Austenitic light-weight steel having high toughness and method of manufacturing the same |
-
1991
- 1991-12-27 JP JP3347543A patent/JPH0699775B2/en not_active Expired - Lifetime
-
1992
- 1992-07-23 CN CN92105854A patent/CN1027382C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1069525A (en) | 1993-03-03 |
| JPH0699775B2 (en) | 1994-12-07 |
| JPH05212526A (en) | 1993-08-24 |
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