CN102560280A - High-temperature-resistance and high-strength alloy steel and heat treatment process thereof - Google Patents
High-temperature-resistance and high-strength alloy steel and heat treatment process thereof Download PDFInfo
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- 229910000851 Alloy steel Inorganic materials 0.000 title claims abstract description 68
- 238000010438 heat treatment Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title abstract description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000011572 manganese Substances 0.000 claims abstract description 16
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 16
- 239000010703 silicon Substances 0.000 claims abstract description 16
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 14
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 14
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 14
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 14
- 239000011733 molybdenum Substances 0.000 claims abstract description 14
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 13
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 13
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 13
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 13
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000010791 quenching Methods 0.000 claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 10
- 238000003723 Smelting Methods 0.000 claims abstract description 8
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 30
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 238000007669 thermal treatment Methods 0.000 claims description 16
- 239000003921 oil Substances 0.000 claims description 14
- 239000011651 chromium Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 229910052721 tungsten Inorganic materials 0.000 claims description 12
- 239000010937 tungsten Substances 0.000 claims description 12
- 229910052804 chromium Inorganic materials 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 10
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- 230000000171 quenching effect Effects 0.000 abstract description 6
- 230000032683 aging Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
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- 229910007981 Si-Mg Inorganic materials 0.000 description 3
- 229910008316 Si—Mg Inorganic materials 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 239000011573 trace mineral Substances 0.000 description 2
- 235000013619 trace mineral Nutrition 0.000 description 2
- INZDTEICWPZYJM-UHFFFAOYSA-N 1-(chloromethyl)-4-[4-(chloromethyl)phenyl]benzene Chemical compound C1=CC(CCl)=CC=C1C1=CC=C(CCl)C=C1 INZDTEICWPZYJM-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- GXTVJIIYRCYTNM-UHFFFAOYSA-N [V].[Mo].[W] Chemical compound [V].[Mo].[W] GXTVJIIYRCYTNM-UHFFFAOYSA-N 0.000 description 1
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- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
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- -1 rare earth rare earth Chemical class 0.000 description 1
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- 150000003658 tungsten compounds Chemical class 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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Abstract
The invention discloses high-temperature-resistance and high-strength alloy steel and a heat treatment process thereof. The high-temperature-resistance and high-strength alloy steel comprises the components as follows: carbon accounting for 0.06-0.1, nickel accounting for 0.8-1.2, vanadium accounting for 0.9-1.8, molybdenum accounting for 1.6-2.6, silicon accounting for 0.8-1.2, manganese accounting for 1.5-2.8, chrome accounting for 2.3-6.0, wolfram accounting for 0.1-0.3, rare earth accounting for 0.1-0.3, and iron in balancing amount. During the smelting of the high-temperature-resistance and high-strength alloy steel, an alloy of rare earth, silicon and manganese is added, the dosage of the alloy is 0.7%-1.5% of the quality of a furnace burden, and the alloy of rare earth, silicon and manganese meets the national standard GB/T 4138-93; and the heat treatment comprises quenching heat treatment, solution heat treatment process and aging heat treatment process in sequence. The high-temperature-resistance and high-strength alloy steel not only has a good property of high temperature resistance, but also is stronger in wear resistance and obdurability, and the service life of a high-temperature bolt made of the steel is prolonged by more than 8 times in comparison with that of the traditional normal bolt.
Description
Technical field
The present invention relates to a kind of steel alloy, relate in particular to a kind of high temperature resistance and high strength alloy steel and thermal treatment process thereof, specifically be applicable to the intensity and the resistance to elevated temperatures that improve steel.
Background technology
The part that uses under the hot environment must have high thermal resistance and HS property, therefore the used steel of part is also required high temperature resistant and HS.
The Chinese patent notification number is CN100412221C, and the day for announcing is that the patent of invention on August 20th, 2008 discloses a kind of high-temperature alloy steel, and the composition of this steel and percentage by weight are: carbon: 0.7-1.5, and nickel 0-1.5; Vanadium 0-1.5, molybdenum 1.0-3, silicon 0.5-1.5, manganese 0.2-1.0; Chromium 0-3, tungsten 0-3, magnesium 0-0.8; Titanium 0-1.5, aluminium 0-0.5, all the other are iron.Though this kind steel has certain intensity under hot environment, because its carbon content is higher, toughness is not strong, thereby under some environment; As be used for making the fishbolt on the High Temperature Furnaces Heating Apparatus; Then intensity, high thermal resistance and toughness all can not meet the needs of production, and cause produced part to be prone to break and be out of shape, and it is high to change frequency; Thereby cause manufacturing cost to increase, productivity reduces.
Summary of the invention
The objective of the invention is to overcome that the resistance to elevated temperatures that prior art exists is relatively poor, wear resistance and obdurability a little less than; The replacing frequency of part under hot environment with its manufacturing is higher, the defective of increase production cost; Provide a kind of resistance to elevated temperatures better, wear resistance and obdurability be stronger,, the high temperature resistance and high strength alloy steel and the thermal treatment process thereof that reduce production costs lower with the replacing frequency of part under hot environment of its manufacturing.
A kind of high temperature resistance and high strength alloy steel, the composition of said high temperature resistance and high strength alloy steel and quality % are: carbon 0.06～0.1, nickel 0.8～1.2, vanadium 0.9～1.8; Molybdenum 1.6～2.6, silicon 0.8～1.2, manganese 1.5～2.8, chromium 2.3～6.0; Tungsten 0.1～0.3, rare earth 0.1～0.3, all the other are iron;
Said high temperature resistance and high strength alloy steel has added re-si-mg alloy when smelting, the consumption of this re-si-mg alloy is 0.7～1.5% of a quality of furnace charge, and said re-si-mg alloy National standard GB/T4138-93; Said quality of furnace charge refers to the gross weight of all raw materials for production.
Said re-si-mg alloy refers to FeSiMg8RE3, FeSiMg8RE3 – A or FeSiMg8RE3 – B.
A kind of thermal treatment process of above-mentioned high temperature resistance and high strength alloy steel, said thermal treatment process comprise following three continuous processings successively:
Technology one: be heated to 950 ℃, and in oils liquid, quench after being incubated 4 hours;
Technology two: be heated to 800 ℃, and cool off with circulating water after being incubated 6 hours, be 10 minutes cooling time;
Technology three: be heated to 600 ℃, and naturally cooling after being incubated 3 hours.
The oils liquid that uses that quenches in the said technology one is spindle oil.
The fluctuation range of Heating temperature all is ± 15 ℃ of 10 – in said technology one, technology two, the technology three.
Compared with prior art, beneficial effect of the present invention is:
1, the present invention relates to a high-temperature high strength alloy steel of the composition and mass%: C 0.06 to 0.1, Ni? 0.8 to 1.2, vanadium? 0.9 to 1.8, Mo? 1.6 to 2.6, silicon 0.8 to 1.2, Mn 1.5 ~ 2.8, Cr 2.3 to 6.0, 0.1 to 0.3 tungsten, 0.1 to 0.3 RE, the balance being iron, the design advantages of the various components: carbon, carbon design philosophy adopted, the thermal properties of carbon materials can, improved toughness When carbon is less than 0.06 mass%, the strength of steel is low, when the carbon is more than 0.1 mass%, the steel increased brittleness, toughness, and thus the present invention, the carbon content is limited 0.06-0.1; Ni - Cr - Mn element, these three elements dissolved in the heated alloy austenitic matrix, can improve the hardenability of steel and strength, and they belong to the austenite forming elements, and thus help to improve the toughness of steel; tungsten - molybdenum - vanadium, these three elements can give only a carbide alloy good abrasion resistance, and can impart excellent high temperature performance steel; silicon element, which not only make the alloy to improve hardenability, but also to solid solution strengthening the matrix alloy, improving the strength of steel; rare earth rare earth Si-Mg alloy is usually added in the form Si-Mg alloy, not only to deoxidation, desulfurization, the raw material to eliminate or reduce harmful trace elements such as tin, antimony, bismuth, arsenic and other adverse effects on the properties of steel, and can degenerate sulfide, significantly improved the performance of steel lateral impact, lower ductile - brittle transition temperature.Therefore not only resistance to elevated temperatures is better for a kind of high temperature resistance and high strength alloy steel of the present invention, and wear resistance, obdurability are also stronger, thereby lower with the replacing frequency of part under hot environment of its manufacturing, can reduce production costs.
2, comprise three continuous processings in the Technology for Heating Processing of a kind of high temperature resistance and high strength alloy steel of the present invention successively, wherein, technology one can make that De Nie – Ge – manganese element dissolves in matrix fully in the steel alloy, thereby makes steel alloy have excellent quenching degree and intensity; Technology two can make diffusion-precipitation on the steel alloy matrix, tiny, uniform carbide, thereby makes steel alloy have good high temperature resistant, anti-wear performance; Technology three can reduce stress in the steel alloy, and further even composition, thinning microstructure improve steel alloy toughness and red hardness.Therefore the thermal treatment process of a kind of high temperature resistance and high strength alloy steel of the present invention can improve resistance to elevated temperatures, wear resistance and the obdurability of steel once more, and is feasible lower with the replacing frequency of part under hot environment of its manufacturing, can reduce production costs.
Embodiment
Describe the present invention below in conjunction with embodiment:
A kind of high temperature resistance and high strength alloy steel, the composition of said high temperature resistance and high strength alloy steel and quality % are: carbon 0.06～0.1, nickel 0.8～1.2, vanadium 0.9～1.8; Molybdenum 1.6～2.6, silicon 0.8～1.2, manganese 1.5～2.8, chromium 2.3～6.0; Tungsten 0.1～0.3, rare earth 0.1～0.3, all the other are iron;
Said high temperature resistance and high strength alloy steel has added re-si-mg alloy when smelting, the consumption of this re-si-mg alloy is 0.7～1.5% of a quality of furnace charge, and said re-si-mg alloy National standard GB/T4138-93; Said quality of furnace charge refers to the gross weight of all raw materials for production.
Said re-si-mg alloy refers to FeSiMg8RE3, FeSiMg8RE3 – A or FeSiMg8RE3 – B.
The composition of a kind of high temperature resistance and high strength alloy steel of the present invention and the effect as follows:
Carbon: low-carbon (LC) can make the thermal property of material, toughness be improved.When the quality of carbon less than 0.06% the time, the intensity of steel alloy is lower, when the quality of carbon greater than 0.1% the time, the fragility of steel alloy increases, toughness reduces.
Nickel: nickel can make material hardening capacity improve, thereby improves the intensity of steel, and nickel belongs to austenite former again, and the toughness of steel and resistance toheat are improved.When the quality of nickel less than 0.8% the time, the intensity of steel alloy, toughness increase not obvious, the quality of nickel was greater than 1% o'clock, the temper brittleness of steel alloy increases.
Vanadium: but refinement steel alloy grain structure forms hard compounds and gains in strength in material.When the quality of vanadium less than 0.8% the time, the thinning effect of steel tissue is poor, the quality of vanadium was greater than 1.2% o'clock, vanadium carbide quantity increases, thereby causes the toughness of steel alloy to reduce.
Molybdenum: molybdenum can make material hardening capacity, resistance toheat be improved, and the carbide of molybdenum also can improve the wear resistance of steel alloy.When the quality of molybdenum less than 1. 6% the time, the high-temperature behavior of steel alloy tissue is undesirable, the quality of molybdenum was greater than 2.6% o'clock, the fragility of steel alloy increases.
Silicon: silicon can make material hardening capacity improve, and the solid solution strengthened alloy steel matrix, thereby the intensity of steel alloy is improved.When the quality of silicon less than 0.8% the time, hardening capacity is improved and the effect of solid solution strengthened alloy steel matrix not remarkable, the quality of silicon was greater than 1.6% o'clock, the fragility of steel alloy increases.
Manganese: manganese can make material hardening capacity and wear resisting property be improved.When the quality of manganese less than 1.5% the time, the shock resistance of steel tissue, wear resistance improve not obvious, hardening capacity is undesirable, the quality of manganese was greater than 2.8% o'clock, steel are prone to the work hardening phenomenon, difficulty of processing increases, plasticity reduces.
Chromium: chromium has fabulous non-oxidizability and corrosion resistance; Material quenching degree, hot property are improved; Can in material, form hard compounds gains in strength; When with other elements such as molybdenum, vanadium, tungsten compound add fashionable; Steel alloy not only quenching degree is excellent; And red hardness and high temperature abrasion resistance are good, and the temper brittleness tendency is little.When the mass is less than 2.3% of chromium, the steel hardenability and tissue thermal performance is not satisfactory, chromium greater than 6.0 mass%, the alloy increased brittleness, processing difficulty increases.
Tungsten: tungsten can improve the high temperature strength of material, can in material, form hard compounds and increase wear resistance, has high temperature resistant, nonabradable characteristic.When the quality of tungsten less than 0.1% the time, the thermal property and the wear resistance of steel alloy tissue are undesirable, the quality of tungsten was greater than 0.3% o'clock, the fragility of steel alloy increases, machinability reduces.
Rare earth: REE usually with the form adding of Si-Mg alloy with re-si-mg alloy; Re-si-mg alloy not only can deoxidation, desulfurization; Hazardous trace elements such as tin, antimony, bismuth, arsenic etc. are to the disadvantageous effect of rigidity ability in elimination or the minimizing raw material; And the sulfide that can go bad, significantly improve steel the transverse impact performance, reduce the crisp invert point of tough –.
Re-si-mg alloy: be the additive in the steel alloy smelting process, its effect comprises: reduce the infringement of harmful element to alloy structure of steel and performance; Can thinning microstructure, have purify hot metal with in the effect of harmful interference element (like lower melting point impurity such as arsenic, zinc, lead), it is higher and be insoluble to the compound of iron to generate fusing point, eliminate these impurity to the alloy rigidity can destruction; Can make the steel alloy desulfurization, degas, can control the content and the shape of sulphur inclusion in the steel.When the quality of re-si-mg alloy less than 0.7% the time, above-mentioned advantageous effect is not obvious, the quality of re-si-mg alloy was greater than 1.5% o'clock, the control of steel alloy composition is complicated.Described re-si-mg alloy additive is answered National standard GB/T4138-93.
A kind of thermal treatment process of above-mentioned high temperature resistance and high strength alloy steel, said thermal treatment process comprise following three continuous processings successively:
Technology one: be heated to 950 ℃, and in oils liquid, quench after being incubated 4 hours;
Technology two: be heated to 800 ℃, and cool off with circulating water after being incubated 6 hours, be 10 minutes cooling time;
Technology three: be heated to 600 ℃, and naturally cooling after being incubated 3 hours.
The oils liquid that uses that quenches in the said technology one is spindle oil.
The fluctuation range of Heating temperature all is ± 15 ℃ of 10 – in said technology one, technology two, the technology three.
The effect of each technology is following in the thermal treatment process of a kind of high temperature resistance and high strength alloy steel of the present invention:
Technology one: i.e. quenching heat treatment comprises being heated to 950 ℃, and in oils liquid, quenches after being incubated 4 hours.This technology can make that De Nie – Ge – manganese element dissolves in matrix fully in the steel, makes steel alloy have excellent quenching degree and intensity.
Technology two: i.e. solution heat treatment technology comprises being heated to 800 ℃, and cools off with circulating water after being incubated 6 hours that be 10 minutes cooling time.This technology can make diffusion-precipitation on the steel alloy matrix, tiny, uniform carbide, makes steel alloy have good high temperature resistant, wear resisting property.
Technology three: i.e. timeliness thermal treatment process, comprise being heated to 600 ℃, and naturally cooling after being incubated 3 hours.This technology can reduce stress in the steel alloy, and further even composition, thinning microstructure improve steel alloy toughness and red hardness.
Technology one, technology two, technology three are carried out successively continuously, and the oils liquid that uses during quench treatment in the said technology one is spindle oil, and this spindle oil can not only be realized the technology purpose, and economical general.
Embodiment 1:
A kind of high temperature resistance and high strength alloy steel, its composition and quality % are: carbon 0.06, nickel 0.8, vanadium 0.9, molybdenum 1.6, silicon 0.8, manganese 1.5, chromium 2.3, tungsten 0.1, rare earth 0.1, all the other are iron;
Said high temperature resistance and high strength alloy steel has added re-si-mg alloy when smelting; The consumption of this re-si-mg alloy is 0.7 of a quality of furnace charge; Said re-si-mg alloy National standard GB/T4138-93; Said quality of furnace charge refers to the gross weight of all raw materials for production, and re-si-mg alloy refers to FeSiMg8RE3.
A kind of thermal treatment process of above-mentioned high temperature resistance and high strength alloy steel, said thermal treatment process comprise following three continuous processings successively:
Technology one: be heated to 950 ℃, and in spindle oil, quench after being incubated 4 hours;
Technology two: be heated to 800 ℃, and cool off with circulating water after being incubated 6 hours, be 10 minutes cooling time;
Technology three: be heated to 600 ℃, and naturally cooling after being incubated 3 hours.
The fluctuation range of Heating temperature all is ± 15 ℃ of 10 – in said technology one, technology two, the technology three.
Embodiment 2:
Content is with embodiment 1, and difference is: a kind of high temperature resistance and high strength alloy steel, and its composition and quality % are: carbon 0.1, nickel 1.2, vanadium 1.8, molybdenum 2.6, silicon 1.2, manganese 2.8, chromium 6.0, tungsten 0.3, rare earth 0.3, all the other are iron;
Said high temperature resistance and high strength alloy steel has added re-si-mg alloy when smelting; The consumption of this re-si-mg alloy is 1.5% of a quality of furnace charge; Said re-si-mg alloy National standard GB/T4138-93; Said quality of furnace charge refers to the gross weight of all raw materials for production, and re-si-mg alloy refers to FeSiMg8RE3 – A.
Embodiment 3:
Content is with embodiment 1, and difference is: a kind of high temperature resistance and high strength alloy steel, and its composition and quality % are: carbon 0.08, nickel 1.0, vanadium 1.4, molybdenum 2.2, silicon 1.0, manganese 2.1, chromium 4.8, tungsten 0.2, rare earth 0.2, all the other are iron;
Said high temperature resistance and high strength alloy steel has added re-si-mg alloy when smelting; The consumption of this re-si-mg alloy is 1.1% of a quality of furnace charge; Said re-si-mg alloy National standard GB/T4138-93; Said quality of furnace charge refers to the gross weight of all raw materials for production, and re-si-mg alloy refers to FeSiMg8RE3 – B.
The high temperature resistance and high strength alloy steel that adopts above-mentioned three embodiment to make is processed the vacuum oven fishbolt, and this fishbolt uses its tensile strength under 600 ℃ of-900 ℃ of hot environments:
Claims (5)
1. high temperature resistance and high strength alloy steel is characterized in that:
The composition of said high temperature resistance and high strength alloy steel and quality % are: carbon 0.06～0.1, and nickel 0.8～1.2, vanadium 0.9～1.8, molybdenum 1.6～2.6, silicon 0.8～1.2, manganese 1.5～2.8, chromium 2.3～6.0, tungsten 0.1～0.3, rare earth 0.1～0.3, all the other are iron;
Said high temperature resistance and high strength alloy steel has added re-si-mg alloy when smelting, the consumption of this re-si-mg alloy is 0.7～1.5% of a quality of furnace charge, and said re-si-mg alloy National standard GB/T4138-93; Said quality of furnace charge refers to the gross weight of all raw materials for production.
2. a kind of high temperature resistance and high strength alloy steel according to claim 1 is characterized in that: said re-si-mg alloy refers to FeSiMg8RE3, FeSiMg8RE3 – A or FeSiMg8RE3 – B.
3. the thermal treatment process of claim 1 or 2 described high temperature resistance and high strength alloy steels is characterized in that said thermal treatment process comprises following three continuous processings successively:
Technology one: be heated to 950 ℃, and in oils liquid, quench after being incubated 4 hours;
Technology two: be heated to 800 ℃, and cool off with circulating water after being incubated 6 hours, be 10 minutes cooling time;
Technology three: be heated to 600 ℃, and naturally cooling after being incubated 3 hours.
4. the thermal treatment process of a kind of high temperature resistance and high strength alloy steel according to claim 3 is characterized in that: the oils liquid that uses that quenches in the said technology one is spindle oil.
5. the thermal treatment process of a kind of high temperature resistance and high strength alloy steel according to claim 3 is characterized in that: the fluctuation range of Heating temperature all is ± 15 ℃ of 10 – in said technology one, technology two, the technology three.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106755853A (en) * | 2016-11-30 | 2017-05-31 | 河池市技术开发中心 | A kind of Technology for Heating Processing of coal-winning machine mild steel |
| CN112538559A (en) * | 2020-10-28 | 2021-03-23 | 浙江自紧王机械有限公司 | Processing technology of self-tightening gasket and self-tightening nut |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101421424A (en) * | 2006-04-11 | 2009-04-29 | 日立金属株式会社 | Process for producing steel material |
| CN101597720A (en) * | 2009-06-29 | 2009-12-09 | 周子钦 | A kind of high temperature resistance and high strength alloy steel and thermal treatment process thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101421424A (en) * | 2006-04-11 | 2009-04-29 | 日立金属株式会社 | Process for producing steel material |
| CN101597720A (en) * | 2009-06-29 | 2009-12-09 | 周子钦 | A kind of high temperature resistance and high strength alloy steel and thermal treatment process thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106755853A (en) * | 2016-11-30 | 2017-05-31 | 河池市技术开发中心 | A kind of Technology for Heating Processing of coal-winning machine mild steel |
| CN112538559A (en) * | 2020-10-28 | 2021-03-23 | 浙江自紧王机械有限公司 | Processing technology of self-tightening gasket and self-tightening nut |
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Application publication date: 20120711 |