CN104630636A - Low-carbon cast steel and preparation method thereof - Google Patents
Low-carbon cast steel and preparation method thereof Download PDFInfo
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- CN104630636A CN104630636A CN201510064493.XA CN201510064493A CN104630636A CN 104630636 A CN104630636 A CN 104630636A CN 201510064493 A CN201510064493 A CN 201510064493A CN 104630636 A CN104630636 A CN 104630636A
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- 229910001208 Crucible steel Inorganic materials 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 229920002165 CarbonCast Polymers 0.000 title abstract 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 98
- 239000010959 steel Substances 0.000 claims abstract description 98
- 238000005266 casting Methods 0.000 claims abstract description 75
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- 239000000126 substance Substances 0.000 claims abstract description 13
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 12
- 239000000956 alloy Substances 0.000 claims abstract description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 11
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 11
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 11
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 6
- 238000010791 quenching Methods 0.000 claims abstract description 6
- 230000000171 quenching effect Effects 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 7
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 7
- 239000011651 chromium Substances 0.000 claims description 7
- 229910052748 manganese Inorganic materials 0.000 claims description 7
- 239000011572 manganese Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims description 5
- 241001062472 Stokellia anisodon Species 0.000 claims description 5
- 229910052796 boron Inorganic materials 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 239000003921 oil Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract description 3
- 239000011733 molybdenum Substances 0.000 abstract description 3
- 238000005275 alloying Methods 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 229910052720 vanadium Inorganic materials 0.000 abstract description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 229910000628 Ferrovanadium Inorganic materials 0.000 abstract 1
- APGROBRHKCQTIA-UHFFFAOYSA-N [Mg].[Si].[Fe] Chemical compound [Mg].[Si].[Fe] APGROBRHKCQTIA-UHFFFAOYSA-N 0.000 abstract 1
- ZDVYABSQRRRIOJ-UHFFFAOYSA-N boron;iron Chemical compound [Fe]#B ZDVYABSQRRRIOJ-UHFFFAOYSA-N 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 abstract 1
- IXQWNVPHFNLUGD-UHFFFAOYSA-N iron titanium Chemical compound [Ti].[Fe] IXQWNVPHFNLUGD-UHFFFAOYSA-N 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- -1 silicon-calcium-barium-aluminum Chemical compound 0.000 abstract 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 5
- 239000010962 carbon steel Substances 0.000 description 5
- 230000035939 shock Effects 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses low-carbon cast steel and a preparation method thereof. The low-carbon cast steel consists of the following chemical components in percentage by weight: 0.10-0.18 percent of C, 0.1-0.3 percent of Si, 0.5-1.2 percent of Mg, 0.3-0.5 percent of Cr, 0.1-0.3 percent of Mo, 0.04-0.08 percent of Al, 0.1-0.2 percent of N, not higher than 0.05 percent of P, not higher than 0.05 percent of S, not higher than 0.03 percent of inevitable impurities and the balance of iron. The preparation method comprises the following steps: (1) melting complex alloy cast steel to obtain liquid steel; (2) adding 1.6-1.8 percent of metallic aluminum, 0.8-1.2 percent of silicon-iron, 3.5-5.5 percent of boron-iron and 0.2-0.4 percent of titanium-iron based on percentage by mass of the liquid steel when the temperature of the liquid steel is 1500 to 1550 DEG C; heating the liquid steel to the temperature of 1600 to 1650 DEG C, keeping the temperature for 1-2 hours, then discharging from a furnace, and casting ladle; (3) putting rare-earth magnesium-silicon-iron, silicon-calcium-barium-aluminum alloy and ferrovanadium at the bottom of the ladle, and micro-alloying the liquid steel; (4) pouring and casting; (5) thermally processing. The low-carbon cast steel prepared by the method disclosed by the invention is good in impact resistance, good in heat crack resistance, good in hardenability and unlikely to cause cracks during water quenching; moreover, the amount of added precious alloy elements such as nickel, molybdenum and vanadium is low, so the production cost is relatively low.
Description
Technical field
The present invention relates to cast steel technical field, particularly relate to a kind of casting soft steel and preparation method thereof.
Background technology
Cast steel is the general name of the ferrous alloy for the production of foundry goods not experiencing eutectic transformation in process of setting, the one of casting alloy.The alloy that cast steel is is principal element with iron, carbon, carbon content 0-2%.Cast steel is divided into casting carbon steel, cast low alloy steel and casting special steel three class so far.
Casting carbon steel is carbon is the cast steel of main alloy element also containing other elements a small amount of, carbon containing be less than 0.2% for casting soft steel, carbon containing 0.2-0.5%'s is casting medium carbon steel, carbon containing be greater than 0.5% for casting high carbon steel, along with the increase of carbon content, the intensity of casting carbon steel increases, and hardness improves.Casting carbon steel has higher intensity, plasticity and toughness, cost is lower, for the manufacture of the part bearing large load in heavy-duty machinery, as frame of rolling mill, water pressure engine base etc., on rail vehicle for the manufacture of the stressed part withstood shocks again greatly as bolster, side frame, wheel and hitch etc.Although casting carbon steel technology is greatly developed at present, but, a lot of problem is still had to exist, casting soft steel as current exists that impact resistance is weak, heat crack resistance is poor, hardening capacity is low, after shrend, foundry goods easily cracks, easily rupture in foundry goods use procedure, the requirement of production can't be met in a lot of occasion.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of casting soft steel, shock resistance is good, and heat crack resistance is good, and hardening capacity is good, not easily crack, and cost is low in shrend process.
Another object of the present invention is to provide the preparation method of this casting soft steel.
The present invention adopts following technical scheme to achieve these goals:
A kind of casting soft steel, this casting soft steel is made up of by weight percentage following chemical composition: carbon 0.10-0.18%, silicon 0.1-0.3%, manganese 0.5-1.2%, chromium 0.3-0.5%, Mo 0.1-0.3%, Al 0.04-0.08%, N 0.1-0.2%, P≤0.05%, S≤0.05%, inevitably impurity≤0.03%, surplus are iron.
Preferably, described casting soft steel, this casting soft steel is made up of by weight percentage following chemical composition: carbon 0.15%, silicon 0.2%, manganese 0.8%, chromium 0.4%, Mo 0.2%, Al 0.06%, N 0.15%, P≤0.05%, S≤0.05%, inevitably impurity≤0.03%, surplus are iron.
The preparation method of described casting soft steel, comprises the following steps:
(1) in electric furnace, smelt complex alloy cast-steel by the chemical constitution of above-mentioned casting soft steel and obtain molten steel;
(2) when liquid steel temperature reaches 1500-1550 DEG C, add the ferrotianium of the metallic aluminium of the 1.6-1.8% of steel quality mark, the ferrosilicon of 0.8-1.2%, the ferro-boron of 3.5-5.5% and 0.2-0.4% successively, then by molten steel heating to 1600-1650 DEG C, be incubated and come out of the stove after 1-2 hour, and molten steel is injected casting ladle;
(3) rare earth ferrosilicomagnesium, Si-Ca-Ba aluminium alloy and vanadium iron being crushed to granularity is 8-10mm, dry, be placed in bottom casting ladle, with pouring method in bag, microalloy treatment is carried out to molten steel, wherein rare earth ferrosilicomagnesium add-on injects the 1.0-1.3% of steel quality mark in casting ladle, Si-Ca-Ba aluminium alloy add-on injects the 1.0-1.3% of steel quality mark in casting ladle, and vanadium iron add-on injects the 0.10-0.15% of steel quality mark in casting ladle;
(4) skim, when liquid steel temperature is down to 1350-1400 DEG C, molten steel is poured into casting mold;
(5) foundry goods is through unpacking, heat-treating after sand removal, and foundry goods quenching temperature is 1000-1100 DEG C, is incubated oil cooling after 1-3 hour, then temper at 500-550 DEG C of temperature, is incubated and is cooled to room temperature after 5-8 hour.
Compared with the prior art, beneficial effect of the present invention is as follows:
The present invention, by rationally arranging the content of carbon, silicon, manganese, by smelting complex alloy cast-steel in electric furnace, adding the material such as ferro-boron, metallic aluminium in the smelting later stage, obviously improving shock resistance and the wear resistance of cast steel, increase appropriate Mo simultaneously, improve the hardenability of steel; Add the hardening capacity that proper N improves cast steel; Improve Fe content, reduce molybdenum content, effectively can improve the thermal conductivity of cast steel, make it avoid cracking in shrend process; Meanwhile, P and S is the harmful element that the toughness of steel is reduced, and its content controls below 0.03% by the present invention.The present invention prepare casting soft steel, shock resistance is good, and heat crack resistance is good, and hardening capacity is good, not easily cracks in shrend process, and the expensive alloying elements add-on such as nickel, molybdenum, vanadium is few, has lower production cost.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated, but the present invention is not limited only to these embodiments, and under the prerequisite not departing from present inventive concept, any improvement done all drops within protection scope of the present invention.
Embodiment 1:
A kind of casting soft steel, this casting soft steel is made up of by weight percentage following chemical composition: carbon 0.10%, silicon 0.3%, manganese 0.5%, chromium 0.3%, Mo 0.1%, Al 0.04%, N 0.1%, P0.02%, S0.01%, inevitably impurity 0.005%, surplus are iron.
The preparation method of described casting soft steel, comprises the following steps:
(1) in electric furnace, smelt complex alloy cast-steel by the chemical constitution of above-mentioned casting soft steel and obtain molten steel;
(2) when liquid steel temperature reaches 1500 DEG C, add successively the metallic aluminium of 1.6% of steel quality mark, the ferrosilicon of 0.8%, the ferro-boron of 5.5% and 0.2% ferrotianium, then by molten steel heating to 1600 DEG C, be incubated and come out of the stove after 2 hours, and molten steel is injected casting ladle;
(3) rare earth ferrosilicomagnesium, Si-Ca-Ba aluminium alloy and vanadium iron being crushed to granularity is 8mm, dry, be placed in bottom casting ladle, with pouring method in bag, microalloy treatment is carried out to molten steel, wherein rare earth ferrosilicomagnesium add-on is inject steel quality mark in casting ladle 1.0%, Si-Ca-Ba aluminium alloy add-on is inject steel quality mark in casting ladle 1.3%, and vanadium iron add-on is inject steel quality mark in casting ladle 0.10%;
(4) skim, when liquid steel temperature is down to 1350 DEG C, molten steel is poured into casting mold;
(5) foundry goods is through unpacking, heat-treating after sand removal, and foundry goods quenching temperature is 1000 DEG C, be incubated oil cooling after 3 hours, then temper at 500 DEG C of temperature, is incubated to be cooled to room temperature after 8 hours and can to obtain casting soft steel.
The mechanical property of the casting soft steel of the present embodiment 1 is: tensile strength 985MPa, hardness 292HB, impelling strength 65J/cm
2.
Embodiment 2:
A kind of casting soft steel, this casting soft steel is made up of by weight percentage following chemical composition: carbon 0.15%, silicon 0.2%, manganese 0.8%, chromium 0.4%, Mo 0.2%, Al 0.06%, N 0.15%, P0.022%, S0.016%, inevitably impurity 0.015%, surplus are iron.
The preparation method of described casting soft steel, comprises the following steps:
(1) in electric furnace, smelt complex alloy cast-steel by the chemical constitution of above-mentioned casting soft steel and obtain molten steel;
(2) when liquid steel temperature reaches 1530 DEG C, add successively the metallic aluminium of 1.7% of steel quality mark, the ferrosilicon of 1.0%, the ferro-boron of 4.5% and 0.3% ferrotianium, then by molten steel heating to 1630 DEG C, be incubated and come out of the stove after 1.5 hours, and molten steel is injected casting ladle;
(3) rare earth ferrosilicomagnesium, Si-Ca-Ba aluminium alloy and vanadium iron being crushed to granularity is 10mm, dry, be placed in bottom casting ladle, with pouring method in bag, microalloy treatment is carried out to molten steel, wherein rare earth ferrosilicomagnesium add-on is inject steel quality mark in casting ladle 1.2%, Si-Ca-Ba aluminium alloy add-on is inject steel quality mark in casting ladle 1.2%, and vanadium iron add-on is inject steel quality mark in casting ladle 0.13%;
(4) skim, when liquid steel temperature is down to 1380 DEG C, molten steel is poured into casting mold;
(5) foundry goods is through unpacking, heat-treating after sand removal, and foundry goods quenching temperature is 1050 DEG C, is incubated oil cooling after 2 hours, then temper at 530 DEG C of temperature, is incubated and is cooled to room temperature after 6 hours.
The mechanical property of the casting soft steel of the present embodiment 2 is: tensile strength 995MPa, hardness 295HB, impelling strength 68J/cm
2.
Embodiment 3:
A kind of casting soft steel, this casting soft steel is made up of by weight percentage following chemical composition: carbon 0.18%, silicon 0.1%, manganese 1.2%, chromium 0.3%, Mo 0.3%, Al 0.08%, N 0.2%, P0.01%, S0.01%, inevitably impurity 0.01%, surplus are iron.
The preparation method of described casting soft steel, comprises the following steps:
(1) in electric furnace, smelt complex alloy cast-steel by the chemical constitution of above-mentioned casting soft steel and obtain molten steel;
(2) when liquid steel temperature reaches 1550 DEG C, add successively the metallic aluminium of 1.8% of steel quality mark, the ferrosilicon of 0.8%, the ferro-boron of 5.5% and 0.4% ferrotianium, then by molten steel heating to 1650 DEG C, be incubated and come out of the stove after 1 hour, and molten steel is injected casting ladle;
(3) rare earth ferrosilicomagnesium, Si-Ca-Ba aluminium alloy and vanadium iron being crushed to granularity is 10mm, dry, be placed in bottom casting ladle, with pouring method in bag, microalloy treatment is carried out to molten steel, wherein rare earth ferrosilicomagnesium add-on is inject steel quality mark in casting ladle 1.0%, Si-Ca-Ba aluminium alloy add-on is inject steel quality mark in casting ladle 1.3%, and vanadium iron add-on is inject steel quality mark in casting ladle 0.15%;
(4) skim, when liquid steel temperature is down to 1400 DEG C, molten steel is poured into casting mold;
(5) foundry goods is through unpacking, heat-treating after sand removal, and foundry goods quenching temperature is 1100 DEG C, is incubated oil cooling after 1 hour, then temper at 550 DEG C of temperature, is incubated and is cooled to room temperature after 8 hours.
The mechanical property of the casting soft steel of the present embodiment 3 is: tensile strength 993MPa, hardness 293HB, impelling strength 62J/cm
2.
Claims (3)
1. cast a soft steel, it is characterized in that: this casting soft steel is made up of by weight percentage following chemical composition: carbon 0.10-0.18%, silicon 0.1-0.3%, manganese 0.5-1.2%, chromium 0.3-0.5%, Mo 0.1-0.3%, Al 0.04-0.08%, N 0.1-0.2%, P≤0.05%, S≤0.05%, inevitably impurity≤0.03%, surplus are iron.
2. casting soft steel according to claim 1, is characterized in that: this casting soft steel is made up of by weight percentage following chemical composition: carbon 0.15%, silicon 0.2%, manganese 0.8%, chromium 0.4%, Mo 0.2%, Al 0.06%, N 0.15%, P≤0.05%, S≤0.05%, inevitably impurity≤0.03%, surplus are iron.
3. a preparation method for casting soft steel as claimed in claim 1 or 2, is characterized in that: comprise the following steps:
(1) in electric furnace, smelt complex alloy cast-steel by the chemical constitution of above-mentioned casting soft steel and obtain molten steel;
(2) when liquid steel temperature reaches 1500-1550 DEG C, add the ferrotianium of the metallic aluminium of the 1.6-1.8% of steel quality mark, the ferrosilicon of 0.8-1.2%, the ferro-boron of 3.5-5.5% and 0.2-0.4% successively, then by molten steel heating to 1600-1650 DEG C, be incubated and come out of the stove after 1-2 hour, and molten steel is injected casting ladle;
(3) rare earth ferrosilicomagnesium, Si-Ca-Ba aluminium alloy and vanadium iron being crushed to granularity is 8-10mm, dry, be placed in bottom casting ladle, with pouring method in bag, microalloy treatment is carried out to molten steel, wherein rare earth ferrosilicomagnesium add-on injects the 1.0-1.3% of steel quality mark in casting ladle, Si-Ca-Ba aluminium alloy add-on injects the 1.0-1.3% of steel quality mark in casting ladle, and vanadium iron add-on injects the 0.10-0.15% of steel quality mark in casting ladle;
(4) skim, when liquid steel temperature is down to 1350-1400 DEG C, molten steel is poured into casting mold;
(5) foundry goods is through unpacking, heat-treating after sand removal, and foundry goods quenching temperature is 1000-1100 DEG C, is incubated oil cooling after 1-3 hour, then temper at 500-550 DEG C of temperature, is incubated and is cooled to room temperature after 5-8 hour.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510064493.XA CN104630636A (en) | 2015-02-06 | 2015-02-06 | Low-carbon cast steel and preparation method thereof |
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| CN201510064493.XA CN104630636A (en) | 2015-02-06 | 2015-02-06 | Low-carbon cast steel and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105603297A (en) * | 2016-01-13 | 2016-05-25 | 铜陵百荣新型材料铸件有限公司 | Preparation method of high-strength and corrosion-resistant low-carbon steel |
| CN105648336A (en) * | 2016-01-13 | 2016-06-08 | 铜陵百荣新型材料铸件有限公司 | Impact-resistant alloy cast steel and preparation method thereof |
| CN106244928A (en) * | 2016-10-12 | 2016-12-21 | 繁昌县金科机电科技有限公司 | Utilize swage blasting craft casting screw connector and preparation method thereof |
| TWI615486B (en) * | 2016-11-15 | 2018-02-21 | 財團法人工業技術研究院 | A low carbon steel alloy composition, powders and the method forming the objects containing the same. |
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| CN103540855A (en) * | 2013-10-25 | 2014-01-29 | 丁家伟 | High-toughness high-boron medium-chrome low-carbon wear-resisting alloy steel and preparation method thereof |
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| JP2002339037A (en) * | 2001-03-13 | 2002-11-27 | Sumitomo Metal Ind Ltd | High-strength steel excellent in low-temperature joint toughness and SSC resistance and method for producing the same |
| JP2006274285A (en) * | 2005-03-28 | 2006-10-12 | Kubota Corp | High strength low alloy steel centrifugal cast steel pipe for welded structure and method for producing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105603297A (en) * | 2016-01-13 | 2016-05-25 | 铜陵百荣新型材料铸件有限公司 | Preparation method of high-strength and corrosion-resistant low-carbon steel |
| CN105648336A (en) * | 2016-01-13 | 2016-06-08 | 铜陵百荣新型材料铸件有限公司 | Impact-resistant alloy cast steel and preparation method thereof |
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| CN106244928A (en) * | 2016-10-12 | 2016-12-21 | 繁昌县金科机电科技有限公司 | Utilize swage blasting craft casting screw connector and preparation method thereof |
| TWI615486B (en) * | 2016-11-15 | 2018-02-21 | 財團法人工業技術研究院 | A low carbon steel alloy composition, powders and the method forming the objects containing the same. |
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