CN101914687A - Electro-slag re-melting method for steel for aluminum-controlled seamless steel pipes - Google Patents
Electro-slag re-melting method for steel for aluminum-controlled seamless steel pipes Download PDFInfo
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Abstract
The invention belongs to the technical field of electro-slag re-melting, and particularly relates to an electro-slag re-melting method for steel for aluminum-controlled seamless steel pipes. The electro-slag re-melting method comprises the steps of producing a consumable electrode blank, sanding and cleaning the surface of the consumable electrode blank, preparing a slag system and re-melting, wherein Al powder is added once every 6 to 8 minutes in the re-melting step, and the consumption of the Al powder is as follows: in front 4 to 6 times of adding the Al powder, 20 to 32g/t of steel is added every time; and after the Al powder is added for 4 to 6 times, 33 to 65g/t of steel is added every time till the electro-slag re-melting is finished. The method has simple operation; the Al content of electro-slag steel ingots is distributed uniformly, great fluctuation of the Al content of the steel ingots is avoided, and even the problem that the Al content cannot meet the product standard requirement is avoided; and after the steel ingots are rolled, the performance of the seamless steel pipes is stable.
Description
Technical field
The invention belongs to the electroslag remelting technique field, particularly the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes.
Background technology
Along with the development of steel pipe industry, Market competition, the user requires more and more higher to product quality and performances.Nuclear power is clearly stipulated to be controlled in 0.02～0.05% scope to the remaining Al content in the Chemical Composition with the P280GH weldless steel tube.The easy oxidized scaling loss of Al in the esr process steel if do not take sfgd., can cause that fluctuation appears in aluminium in the steel, even underproof phenomenon occur.In order to guarantee that Al is qualified fully in the steel, take vacuum electroslag remelting, protection of inert gas atmosphere esr, the polynary adjustment of electroslag remelting slag, esr process to add methods such as Al powder protection usually.This several method relatively though vacuum electroslag remelting, protection of inert gas atmosphere esr can guarantee in the electroslag steel Al by the least possible scaling loss, the equipment of electroslag furnace is had higher requirement, and production cost is higher; The organization of production complexity of the polynary adjustment of electroslag remelting slag and effect are stable inadequately; It then is a kind of simple and reliable method that esr process adds the protection of Al powder.But for different steel grades, steel ingot ingot shape, the adding mode and the add-on of Al powder then have bigger difference.
Existing domestic patent CN1059371A, French Patent FR2460334, U.S. Pat 4184869 all are to adopt polynary slag system and be aided with one or more deoxidations among Ca, Mg, Ba, the Al, to obtain Al in the remelting steel ingot below 0.01%.Document JP 6128661, HITACHI METALS is in esr process, for even, continuous, the stable aluminium deoxidation that supplies, at the main aluminiferous powder of consumable electrode surface precoating.Document special steel .2003,24 (2), Kweiyang special steel limited-liability company regularly adds the equivalent pure aluminium powder by process optimization and the reflow process that improves [Al] in the electrosmelting process in slag, make [Al] of 012Al electroslag steel stably be controlled at a good horizontal scope.The metallurgical .1999 (5) in document Hebei, Hebei metallurgical test factory has been studied in esr W6Mo5Cr4V2Al (M2Al) process influences steel ingot Si, the factor of Al composition, employing adds aluminium content in an amount of aluminium powder and the control consumable electrode in the slag at the esr initial stage, and the steel ingot composition that the aluminium scaling loss causes in the time of can preventing remelting is offscale.The metallurgical .1995 in document Sichuan, 17 (4), Changing Pattern and the mechanism thereof that low aluminium high titanium type A one 286Ti alloy electric arc furnace adds aluminium in the electroslag art production process has been discussed by Changcheng Specific-Steel Corp., finds that the key of control aluminium content is the selection of remelting slag system.Esr process adds the Al powder technological process of production: produce consumable electrode blank → consumable electrode blank surface sand milling cleaning → preparation slag system → refusion and smelting → steel ingot cleaning → warehouse-in.Adding mode and add-on for different steel grades, Al powder in the prior art then have bigger difference, each tool technical characterstic.The common feature all adopts polynary slag system (more than the ternary) when being the preparation slag system, and all is that intermittence, equivalent add the Al mode when the refusion and smelting step adds aluminium powder.Can not solve electroslag remelting steel ingot increases with molten steel amount in the crystallizer from the bottom to top, and molten steel temperature raises and causes consumable electrode Al scaling loss inconsistent, the uneven problem of electroslag ingot Al content distribution of generation.
Summary of the invention
Technical problem to be solved by this invention provides a kind of electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes, and this method can solve the variation of esr process with thermograde, the inconsistent technical problem of Al scaling loss of esr process consumable electrode.
The technical solution adopted for the present invention to solve the technical problems is: the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes, comprise and produce consumable electrode blank, the cleaning of consumable electrode blank surface sand milling, preparation slag system and refusion and smelting step, it is characterized in that: the refusion and smelting step added the Al powder one time in per 6～8 minutes, and the consumption of aluminium powder is specially:
Preceding 4～6 times of adding of aluminium powder add 20～32g/t steel at every turn;
Aluminium powder changes each adding 33～65g/t steel into after adding 4～6 times, finishes until esr;
Described steel for aluminum-controlled seamless steel pipes is P280GH, and its Chemical Composition is C:0～0.20 by weight percentage, Si:0.10～0.35, Mn:0.80～1.60, S:0～0.015, P:0～0.020, Cu:0～0.18, Sn:0～0.030, Ni:0.10～0.35, Mo:0～0.10, Cr:0～0.25, Al:0.02～0.05, surplus are iron.
Preferably, added the Al powder one time in per 7 minutes during esr, the consumption of aluminium powder is specially:
Preceding 5 times of adding of aluminium powder add 20～32g/t steel at every turn;
Aluminium powder changes each adding 33～65g/t steel into after adding 5 times, finishes until esr.
Preferably, the electro-slag re-melting method of ∮ 350mm, ∮ 380mm ingot shape is: added the Al powder one time in per 6～8 minutes during esr, beginning adds aluminium powder 21～25g/t steel at every turn; Change each adding 33～37g/t steel into after adding aluminium powder 4～6 times, finish until esr.
Preferably, added the Al powder one time in per 6～8 minutes during esr, the consumption of aluminium powder is specially:
Preceding 4～6 times of adding of aluminium powder add 28～32g/t steel at every turn;
Aluminium powder changes each adding aluminium powder 40～52g/t steel into, when second electrode melting 23～27min after adding 4～6 times;
Change into behind second electrode melting 23～27min and add aluminium powder 48～65g/t steel at every turn, finish until esr.
Preferably, the electro-slag re-melting method of ∮ 450mm ingot shape is: added the Al powder one time in per 6～8 minutes during esr, beginning adds aluminium powder 28～32g/t steel at every turn; Add 4～6 times to second electrode melting 23～27min of aluminium powder, add aluminium powder 40～44g/t steel at every turn; Change each adding aluminium powder 48～52g/t steel behind second electrode melting 23～27min into, finish until esr.
Preferably, the electro-slag re-melting method of ∮ 500mm ingot shape is: added the Al powder one time in per 6～8 minutes during esr, beginning adds Al powder 28～32g/t steel at every turn; Add behind 4～6 Al powder to second electrode melting 23～27min, add aluminium powder 40～44g/t steel at every turn; Change each adding aluminium powder 54～58g/t steel behind second electrode melting 23～27min into, finish until esr.
Preferably, the electro-slag re-melting method of ∮ 550mm, ∮ 600mm, ∮ 800mm ingot shape is: added the Al powder one time in per 6～8 minutes during esr, beginning adds Al powder 28～32g/t steel at every turn; Add Al powder to the second electrode melting 23～27min 4～6 times, add Al powder 48～52g/t steel at every turn; Change each adding Al powder 61～65g/t steel behind second electrode melting 23～27min into, finish until esr.
Slag system when further, preparing slag system is by Al
2O
3, CaF
2Form, its proportioning is Al
2O
330～40%, CaF
260～70%, consumption is 23～42kg/t steel.
The proportioning of slag system is Al during the preparation slag system
2O
335%, CaF
265%.
Refusion and smelting process power supply system is: voltage 75V, electric current 11200A.
The invention has the beneficial effects as follows: adopt Al
2O
3And CaF
2The binary slag system, execute-in-place is simple; Esr process adds the Al powder of inequality by differing temps, time period, makes that electroslag ingot Al content distribution is even, has avoided that the problem that product standard requires appears being lower than in Al content in the steel ingot; The weldless steel tube stable performance of the rolling back of steel ingot.
Embodiment
The Al that the present invention uses
2O
3Purity 〉=97%, CaF
2Purity 〉=97%.
Described steel for aluminum-controlled seamless steel pipes is P280GH, and (weight %) is as shown in table 1 for its Chemical Composition:
Table 1
Preferably, the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes ∮ 350mm, ∮ 380mm ingot shape is: the slag system of esr is by Al
2O
3, CaF
2Form, its proportioning is Al
2O
330～40%, CaF
260～70%, consumption is 23～42kg/t steel.Added the Al powder one time in per 6～8 minutes during esr, beginning adds aluminium powder 21～25g/t steel at every turn; Change each adding 33～37g/t steel into after adding aluminium powder 4～6 times, finish until esr.The slag system of esr is by Al
2O
3, CaF
2Form, its proportioning is Al
2O
330～40%, CaF
260～70%, consumption is 25～40kg/t steel.
Optimum, the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes ∮ 350mm, ∮ 380mm ingot shape is: added the Al powder one time in per 7 minutes during esr, begin to add the each add-on 23g/t steel of Al powder; Change each adding aluminium powder 35g/t steel after adding 5 times into, finish until esr; The slag system proportioning of esr is Al
2O
335%, CaF
265%, consumption is the 25kg/t steel.
Preferably, the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes ∮ 450mm ingot shape is: the slag system of esr is by Al
2O
3, CaF
2Form, its proportioning is Al
2O
330～40%, CaF
260～70%, consumption is 23～42kg/t steel.Added the Al powder one time in per 6～8 minutes during esr, beginning adds aluminium powder 28～32g/t steel at every turn; Add 4～6 times to second electrode melting 23～27min of aluminium powder, add aluminium powder 40～44g/t steel at every turn; Change each adding aluminium powder 48～52g/t steel behind second electrode melting 23～27min into, finish until esr.
Optimum, the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes ∮ 450mm ingot shape is: added the Al powder one time in per 7 minutes during esr, begin to add the Al powder and add the 30g/t steel at every turn; Add aluminium powder and after exchanging second electrode, melt between the 25min later on for 5 times, add Al powder 42g/t steel at every turn; Change each adding Al powder 50g/t steel behind second electrode melting 25min into, finish until esr.The slag system proportioning of esr is Al
2O
335%, CaF
265%, consumption is the 34kg/t steel.
Preferably, the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes ∮ 500mm ingot shape is: the slag system of esr is by Al
2O
3, CaF
2Form, its proportioning is Al
2O
330～40%, CaF
260～70%, consumption is 23～42kg/t steel; Added the Al powder one time in per 6～8 minutes during esr, beginning adds Al powder 28～32g/t steel at every turn; Add behind 4～6 Al powder to second electrode melting 23～27min, add aluminium powder 40～44g/t steel at every turn; Change each adding aluminium powder 54～58g/t steel behind second electrode melting 23～27min into, finish until esr.
Optimum, the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes ∮ 500mm ingot shape is: the slag system proportioning of esr is Al
2O
335%, CaF
265%, consumption is the 40kg/t steel; Added the Al powder one time in per 6～8 minutes during esr, begin to add the Al powder and add the 30g/t steel at every turn; Add 5 aluminium powders and after exchanging second electrode, melt between the 25min later on, add aluminium powder 42g/t steel at every turn; Change each adding aluminium powder 56g/t steel behind second electrode melting 25min into, finish until esr.
Preferably, the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes ∮ 550mm, ∮ 600mm, ∮ 800mm ingot shape is: the slag system of esr is by Al
2O
3, CaF
2Form, its proportioning is Al
2O
330～40%, CaF
260～70%, consumption is 23～42kg/t steel; Added the Al powder one time in per 6～8 minutes during esr, beginning adds Al powder 28～32g/t steel at every turn; Add Al powder to the second electrode melting 23～27min 4～6 times, add Al powder 48～52g/t steel at every turn; Change each adding Al powder 61～65g/t steel behind second electrode melting 23～27min into, finish until esr.
Optimum, the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes ∮ 550mm, ∮ 600mm, ∮ 800mm ingot shape is: the slag system of esr is by Al
2O
3, CaF
2Form, its proportioning is Al
2O
335%, CaF
265%, consumption is the 28kg/t steel; Added the Al powder one time in per 7 minutes during esr, begin to add the Al powder, each add-on 28～32g/t steel; Add and melt each aluminium powder 50g/t steel that adds between the 25min after 5 aluminium powder best friends change second electrode; Change each adding aluminium powder 63g/t steel behind second electrode melting 25min into, finish until esr.
Embodiment 1
External diameter ∮ 350mm, ingot weigh 1.8 tons of electroslag ingot technological process of productions: produce esr consumable electrode blank → consumable electrode blank surface sand milling cleaning → preparation slag system → refusion and smelting → steel ingot cleaning → warehouse-in.
Esr consumable electrode blank carries out sanded to the consumable electrode blank surface by electric arc furnace or top-blown oxygen converter production before the electric slag refusion and smelting, removes the iron scale on surface, avoids the oxidation of ferric oxide to blank interalloy element.Slag system is by Al
2O
3, CaF
2Form, its proportioning is: Al
2O
335%, CaF
265%, consumption 25kg/t steel.The refusion and smelting power supply system is: voltage 75V, electric current 11200A.Al powder add-on: begin to add the Al powder after burning normally, added once in per 7 minutes in the preceding 35min, each add-on 23g/t steel; Added once in per 7 minutes after the 35min, each add-on 35g/t steel finishes until esr.P280GH ingot quality level and product mechanical property are respectively shown in table 2, table 3, table 4 behind the electric slag refusion and smelting.
Table 2P280GH steel ingot Chemical Composition (weight %)
| C | Si | Mn | S | P | Cu | Sn | Ni | Mo | Cr | Al |
| 0.14 | 0.30 | 1.26 | 0.003 | 0.008 | 0.10 | 0.005 | 0.16 | 0.03 | 0.23 | 0.028 |
Table 3P280GH steel ingot Al content distribution
Table 4P280GH steel ingot product mechanical property
Embodiment 2
External diameter ∮ 450mm, ingot weigh 2.1 tons of electroslag ingot technological process of productions: produce esr consumable electrode blank → consumable electrode blank surface sand milling cleaning → preparation slag system → starting the arc slag making → refusion and smelting → steel ingot cleaning → warehouse-in.
Esr consumable electrode blank carries out sanded to the consumable electrode blank surface by electric arc furnace or top-blown oxygen converter production before the electric slag refusion and smelting, removes the iron scale on surface, avoids the oxidation of ferric oxide to blank interalloy element; Slag system is by Al
2O
3, CaF
2Form, its proportioning is: Al
2O
335%, CaF
265%, consumption 34kg/t steel; The refusion and smelting power supply system is: voltage 79V, electric current 12800A.Al powder add-on: begin to add the Al powder after burning normally, added once in per 7 minutes in preceding 35 minutes, each add-on 30g/t steel; After exchanging second electrode, melted between 25 minutes later in 35 minutes, and added once each add-on 42g/t steel in per 7 minutes; Second electrode melting finished to esr after 25 minutes, added once each add-on 50g/t steel in per 7 minutes.P280GH ingot quality level and product mechanical property are respectively shown in table 5, table 6, table 7 behind the electric slag refusion and smelting.
Table 5P280GH steel ingot Chemical Composition (weight %)
| C | Si | Mn | S | P | Cu | Sn | Ni | Mo | Cr | Al |
| 0.15 | 0.26 | 1.28 | 0.004 | 0.007 | 0.10 | 0.005 | 0.14 | 0.03 | 0.20 | 0.038 |
Table 6P280GH steel ingot Al content distribution
Table 7P280GH steel ingot product mechanical property
Embodiment 3
External diameter ∮ 500mm, ingot weigh 2.5 tons of electroslag ingot technological process of productions: produce esr consumable electrode blank → consumable electrode blank surface sand milling cleaning → preparation slag system → starting the arc slag making → refusion and smelting → steel ingot cleaning → warehouse-in.
Esr consumable electrode blank carries out sanded to the consumable electrode blank surface by electric arc furnace or top-blown oxygen converter production before the electric slag refusion and smelting, removes the iron scale on surface, avoids the oxidation of ferric oxide to blank interalloy element; Slag system is by Al
2O
3, CaF
2Form, its proportioning is: Al
2O
335%, CaF
265%, consumption 40kg/t steel; The refusion and smelting power supply system is: voltage 82V, electric current 13100A.Al powder add-on: begin to add the Al powder after burning normally, added once in per 7 minutes in the preceding 35min, each add-on 30g/t steel; After exchanging second electrode, melted between the 25min later in 35 minutes, and added once each add-on 42g/t steel in per 7 minutes; To the esr end, added once each add-on 56g/t steel behind second electrode melting 25min in per 7 minutes.P280GH ingot quality level and product mechanical property are respectively shown in table 8, table 9, table 10 behind the electric slag refusion and smelting.
Table 8P280GH steel ingot Chemical Composition (%)
| C | Si | Mn | S | P | Cu | Sn | Ni | Mo | Cr | Al |
| 0.14 | 0.28 | 1.25 | 0.003 | 0.007 | 0.10 | 0.005 | 0.12 | 0.03 | 0.18 | 0.034 |
The distribution of table 9P280GH steel ingot Al content
Table 10P280GH steel ingot product mechanical property
Embodiment 4
External diameter ∮ 600mm, ingot weigh 5.5 tons of electroslag ingot technological process of productions: produce esr consumable electrode blank → consumable electrode blank surface sand milling cleaning → preparation slag system → starting the arc slag making → refusion and smelting → steel ingot cleaning → warehouse-in.
Esr consumable electrode blank carries out sanded to the consumable electrode blank surface by electric arc furnace or top-blown oxygen converter production before the electric slag refusion and smelting, removes the iron scale on surface, avoids the oxidation of ferric oxide to blank interalloy element; Slag system is by Al
2O
3, CaF
2Form, its proportioning is: Al
2O
335%, CaF
265%, consumption 28kg/t steel; The refusion and smelting power supply system is: voltage 84V, electric current 15500A.Al powder add-on: begin to add the Al powder after burning normally, added once in preceding 35 minutes per 7 minutes, each add-on 30g/t steel; After exchanging second electrode, melted between 25 minutes later in 35 minutes, and added once each add-on 50g/t steel in per 7 minutes; Second electrode melting finished to esr after 25 minutes, added once each add-on 63g/t steel in per 7 minutes.P280GH ingot quality level and product mechanical property are respectively shown in table 11, table 12, table 13 behind the electric slag refusion and smelting.
Table 11P280GH steel ingot Chemical Composition (%)
| C | Si | Mn | S | P | Cu | Sn | Ni | Mo | Cr | Al |
| 0.15 | 0.30 | 1.24 | 0.004 | 0.008 | 0.09 | 0.006 | 0.13 | 0.02 | 0.019 | 0.029 |
The distribution of table 12P280GH steel ingot Al content
Table 13P280GH steel ingot product mechanical property
From table 2～13 as can be seen, the electroslag ingot Al content distribution that the inventive method is produced is even, and the standard-required of product is satisfied in the stable performance of weldless steel tube fully.
Claims (10)
1. the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes, comprise and produce consumable electrode blank, the cleaning of consumable electrode blank surface sand milling, preparation slag system and refusion and smelting step, it is characterized in that: the refusion and smelting step added the Al powder one time in per 6～8 minutes, and the consumption of aluminium powder is specially:
Preceding 4～6 times of adding of aluminium powder add 20～32g/t steel at every turn;
Aluminium powder changes each adding 33～65g/t steel into after adding 4～6 times, finishes until esr;
Described steel for aluminum-controlled seamless steel pipes is P280GH, and its Chemical Composition is C:0～0.20 by weight percentage, Si:0.10～0.35, Mn:0.80～1.60, S:0～0.015, P:0～0.020, Cu:0～0.18, Sn:0～0.030, Ni:0.10～0.35, Mo:0～0.10, Cr:0～0.25, Al:0.02～0.05, surplus are iron.
2. the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes according to claim 1, it is characterized in that: added the Al powder one time in per 7 minutes during esr, the consumption of aluminium powder is specially:
Preceding 5 times of adding of aluminium powder add 20～32g/t steel at every turn;
Aluminium powder changes each adding 33～65g/t steel into after adding 5 times, finishes until esr.
3. the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes according to claim 1, it is characterized in that: the electro-slag re-melting method of ∮ 350mm, ∮ 380mm ingot shape is: added the Al powder one time in per 6～8 minutes during esr, beginning adds aluminium powder 21～25g/t steel at every turn; Change each adding 33～37g/t steel into after adding aluminium powder 4～6 times, finish until esr.
4. the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes according to claim 1, it is characterized in that: added the Al powder one time in per 6～8 minutes during esr, the consumption of aluminium powder is specially:
Preceding 4～6 times of adding of aluminium powder add 28～32g/t steel at every turn;
Aluminium powder changes each adding aluminium powder 40～52g/t steel into, when second electrode melting 23～27min after adding 4～6 times;
Change into behind second electrode melting 23～27min and add aluminium powder 48～65g/t steel at every turn, finish until esr.
5. the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes according to claim 4, it is characterized in that: the electro-slag re-melting method of ∮ 450mm ingot shape is: added one time Al powder, the each aluminium powder 28～32g/t steel that adds of beginning during esr in per 6～8 minutes; Add 4～6 times to second electrode melting 23～27min of aluminium powder, add aluminium powder 40～44g/t steel at every turn; Change each adding aluminium powder 48～52g/t steel behind second electrode melting 23～27min into, finish until esr.
6. the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes according to claim 4, it is characterized in that: the electro-slag re-melting method of ∮ 500mm ingot shape is: added one time Al powder, the each Al powder 28～32g/t steel that adds of beginning during esr in per 6～8 minutes; Add behind 4～6 Al powder to second electrode melting 23～27min, add aluminium powder 40～44g/t steel at every turn; Change each adding aluminium powder 54～58g/t steel behind second electrode melting 23～27min into, finish until esr.
7. the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes according to claim 4, it is characterized in that: the electro-slag re-melting method of ∮ 550mm, ∮ 600mm, ∮ 800mm ingot shape is: added the Al powder one time in per 6～8 minutes during esr, beginning adds Al powder 28～32g/t steel at every turn; Add Al powder to the second electrode melting 23～27min 4～6 times, add Al powder 48～52g/t steel at every turn; Change each adding Al powder 61～65g/t steel behind second electrode melting 23～27min into, finish until esr.
8. according to the electro-slag re-melting method of each described steel for aluminum-controlled seamless steel pipes of claim 1～7, it is characterized in that: the slag system during the preparation slag system is by Al
2O
3, CaF
2Form, its proportioning is Al
2O
330～40%, CaF
260～70%, consumption is 23～42kg/t steel.
9. the electro-slag re-melting method of steel for aluminum-controlled seamless steel pipes according to claim 8 is characterized in that: the proportioning of slag system is Al during the preparation slag system
2O
335%, CaF
265%.
10. according to the electro-slag re-melting method of each described steel for aluminum-controlled seamless steel pipes of claim 1～7, it is characterized in that: refusion and smelting process power supply system is: voltage 75V, electric current 11200A.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102888569A (en) * | 2012-09-14 | 2013-01-23 | 山西太钢不锈钢股份有限公司 | Ti-containing stainless steel electrode smelted in electroslag under protection of argon atmosphere |
| CN105132702A (en) * | 2015-09-09 | 2015-12-09 | 中原特钢股份有限公司 | Electroslag re-melting process for controlling aluminum uniformity of high-aluminum steel |
| CN105567989A (en) * | 2016-01-06 | 2016-05-11 | 攀钢集团成都钢钒有限公司 | Smelting method for clean electroslag steel |
| CN110592312A (en) * | 2019-10-23 | 2019-12-20 | 山西太钢不锈钢股份有限公司 | Preparation method of steel for high-speed axle |
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| JPS6123728A (en) * | 1984-07-10 | 1986-02-01 | Daido Steel Co Ltd | Method for controlling composition of alloy containing al and ti |
| CN101333579A (en) * | 2008-08-06 | 2008-12-31 | 攀钢集团成都钢铁有限责任公司 | Method for producing tube blank steel for nuclear electricity |
| CN101769403A (en) * | 2009-12-23 | 2010-07-07 | 攀枝花新钢钒股份有限公司 | Seamless steel tube for nuclear power and production method thereof |
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2010
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6123728A (en) * | 1984-07-10 | 1986-02-01 | Daido Steel Co Ltd | Method for controlling composition of alloy containing al and ti |
| CN101333579A (en) * | 2008-08-06 | 2008-12-31 | 攀钢集团成都钢铁有限责任公司 | Method for producing tube blank steel for nuclear electricity |
| CN101769403A (en) * | 2009-12-23 | 2010-07-07 | 攀枝花新钢钒股份有限公司 | Seamless steel tube for nuclear power and production method thereof |
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| 《四川冶金》 19951213 李守军 A－286Ti合金冶炼过程中铝含量的控制 37-41 1-10 , 第4期 2 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888569A (en) * | 2012-09-14 | 2013-01-23 | 山西太钢不锈钢股份有限公司 | Ti-containing stainless steel electrode smelted in electroslag under protection of argon atmosphere |
| CN105132702A (en) * | 2015-09-09 | 2015-12-09 | 中原特钢股份有限公司 | Electroslag re-melting process for controlling aluminum uniformity of high-aluminum steel |
| CN105567989A (en) * | 2016-01-06 | 2016-05-11 | 攀钢集团成都钢钒有限公司 | Smelting method for clean electroslag steel |
| CN105567989B (en) * | 2016-01-06 | 2017-08-29 | 攀钢集团成都钢钒有限公司 | The smelting process of clean Electro Slag Remelting Steel |
| CN110592312A (en) * | 2019-10-23 | 2019-12-20 | 山西太钢不锈钢股份有限公司 | Preparation method of steel for high-speed axle |
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| CN101914687B (en) | 2012-01-25 |
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