CN106148809A - A kind of high-elongation mould steel and preparation method thereof - Google Patents
A kind of high-elongation mould steel and preparation method thereof Download PDFInfo
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- CN106148809A CN106148809A CN201610486515.6A CN201610486515A CN106148809A CN 106148809 A CN106148809 A CN 106148809A CN 201610486515 A CN201610486515 A CN 201610486515A CN 106148809 A CN106148809 A CN 106148809A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 70
- 239000010959 steel Substances 0.000 title claims abstract description 70
- 238000002360 preparation method Methods 0.000 title claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 13
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 13
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 13
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 12
- 229910052790 beryllium Inorganic materials 0.000 claims abstract description 12
- 229910052796 boron Inorganic materials 0.000 claims abstract description 12
- 239000000470 constituent Substances 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 12
- 229910052745 lead Inorganic materials 0.000 claims abstract description 12
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 12
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 12
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 12
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 12
- 229910052702 rhenium Inorganic materials 0.000 claims abstract description 12
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 12
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 12
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 12
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 12
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 15
- 238000000137 annealing Methods 0.000 claims description 12
- 238000005242 forging Methods 0.000 claims description 11
- 229910052706 scandium Inorganic materials 0.000 claims description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 229910001141 Ductile iron Inorganic materials 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052755 nonmetal Inorganic materials 0.000 abstract description 3
- 229910052723 transition metal Inorganic materials 0.000 abstract description 3
- 150000003624 transition metals Chemical class 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 description 9
- 239000000956 alloy Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 230000005496 eutectics Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000641 cold extrusion Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910001349 ledeburite Inorganic materials 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
- C22C37/08—Cast-iron alloys containing chromium with nickel
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention provides a kind of high-elongation mould steel, including: C, Si, Mn, Cr, Mo, W, V, P, S, Cu, Mg, Ti, Sr, Zr, B, Zn, Re, Sn, Pb, Be, Sc, Li, Ni, La, Al, remaining is ferrum, and each constituent mass percentage ratio sum is 100%.This spheroidal graphite cast-iron includes multiple nonmetal, metal and transition metal, the addition of these elements is also worked in coordination, improve the non-oxidizability of compressor of air conditioner cylinder body, corrosion resistance, resistance to abrasion and resistance to compression and shock resistance, thus extend compressor of air conditioner cylinder body service life under bad working environments.
Description
Technical field
The invention belongs to field of alloy material, particularly to a kind of high-elongation mould steel, further relate to the system of this mould steel
Preparation Method.
Background technology
Mould is machinery, electronics, automobile, communication, the fundamental technology equipment of the industrial products such as add some points.Owing to utilizing mould to enter
Row machine-shaping has high efficiency and economy, and mould application in materials processing molding industry is the most universal.Make at mould
During with, its quality is affected by various factors, such as shape design, crudy, surface disposition, real work ginseng
Numbers etc., wherein what impact was maximum is the material used by mould itself.
Alloy grinding tool steel can part be high-elongation mould steel, hot die steel and plastic die steel, wherein high-elongation mould
Tool steel is mainly for the manufacture of at ambient temperature by various moulds compressing for metal material.For cold mold material, resistance to
Mill performance, impact flexibility, hardness are most important three performance parameter indexs.But, generally for same steel grade, its wearability
Energy, impact flexibility and hardness cannot concurrently reach most preferably, often generally yield worst impact flexibility when hardness reaches optimal
Performance, and anti-wear performance is affected by hardness and impact flexibility simultaneously, toughness properties then can guarantee that stablizing of wear process
Property and safety.
On existing market, most widely used high-elongation die steel material is mainly high carbon and chromium high-elongation mould steel
Crl2, Crl2MoV etc., it has higher quenching degree, hardenability, wearability, and high-temperature oxidation resistance is good, therefore as general
Type high-elongation die steel material is widely used in manufacturing the cold-working mould of various uses, the most complex-shaped punching concave die,
Cold extruding die, roll threading wheel, cold shears cutting knife and fine measuring instrument etc..But, this kind of high-elongation mould steel belongs to ledeburite steel, by
Yu Gangzhong contains the carbide formers such as a large amount of Cr, Mo, V, can form a large amount of eutectic carbon in solidification and During Eutectoid Decomposition
Compound, the thermoplasticity causing steel is poor, face crack easily occurs in the forging course of processing.Meanwhile, although forged deformation
Operation can crush herring-bone form eutectic carbide, but by forging aspect effect, the distribution of carbides in heavy in section steel remains
Uneven；Present in steel large particle carbide or distribution of carbides uneven serious time reduce the mechanical property of steel, and lead
Causing mould and occur the quality problems such as deformation, cracking in heat treatment process, and increase with forging material size, eutectic carbide is uneven
Evenness is the most serious.
Summary of the invention
Goal of the invention: in order to solve the problems referred to above, wearability is good, hardness is high, resistance to punching to it is an object of the invention to provide one
Hitting property is good, the high-elongation mould steel of length in service life and preparation method thereof.
Technical scheme: a kind of high-elongation mould steel that the present invention provides, including the component of following percentage by weight: C
3.6-4.1%, Si 3.7-4.6%, Mn 0.86-0.92%, Cr 10.2-10.8%, Mo 0.61-0.72%, W 1.91-
2.06%, V 1.67-1.76%, P 0.05-0.10%, S 0.01-0.03%, Cu 0.46-0.53%, Mg 0.50-
0.62%, Ti 0.21-0.34%, Sr 0.52-0.81%, B 0.61-0.73%, Zn 0.64-0.72%, Re 0.21-
0.29%, Pb 0.57-0.63%, Be 0.02-0.07%, Sc 0.26-0.34%, Ni 0.50-0.57%, La 0.01-
0.03%, Al 0.20-0.30%, remaining is ferrum, and each constituent mass percentage ratio sum is 100%.
As preferably, including the component of following percentage by weight: C 3.8-4.0%, Si 4.0-4.3%, Mn 0.88-
0.90%, Cr 10.4-10.6%, Mo 0.66-0.68%, W 1.94-1.96%, V 1.70-1.72%, P 0.07-
0.09%, S 0.01-0.03%, Cu 0.48-0.50%, Mg 0.55-0.57%, Ti 0.27-0.29%, Sr 0.66-
0.70%, B 0.64-0.66%, Zn 0.66-0.68%, Re 0.23-0.25%, Pb 0.59-0.61%, Be 0.03-
0.05%, Sc 0.28-0.30%, Ni 0.53-0.55%, La 0.01-0.03%, Al 0.24-0.26%, remaining is ferrum,
Each constituent mass percentage ratio sum is 100%.
Preferred, including the component of following percentage by weight: C 3.9%, Si 4.2%, Mn 0.89%, Cr as another kind
10.5%, Mo 0.67%, W 1.95%, V 1.71%, P 0.08%, S 0.02%, Cu 0.49%, Mg 0.56%, Ti
0.28%, Sr 0.68%, B 0.65%, Zn 0.67%, Re 0.24%, Pb 0.60%, Be 0.04%, Sc 0.29%,
Ni 0.54%, La 0.02%, Al 0.25%, remaining is ferrum, and each constituent mass percentage ratio sum is 100%.
Present invention also offers the preparation method of above-mentioned high-elongation mould steel, comprise the following steps:
(1) each raw material is smelted 3-5h, blowing argon gas 1500-1600 DEG C of refine 1-2h of stirring in 1500-1600 DEG C, obtain primary
Molten steel；
(2) by primary molten steel vacuum outgas 10-20min under 1500-1600 DEG C of 60-80Pa, high-purity molten steel is obtained；
(3) high-purity molten steel is cast at 1400-1500 DEG C, 800-900 DEG C of annealing 8-12h, it is cooled to 400-500 DEG C
Rear standing is cooled to room temperature, obtains electroslag bar；
(4) use vacuum consumable remelting furnace to consutrode rod remelting, remelting voltage 60-65V, electric current 10000-
1i000A, obtains steel ingot；
(5) by steel ingot in 800-900 DEG C of cycle annealing 14-18h, 1100-1200 DEG C of forging, forging material is obtained；
(6) material 800-900 DEG C annealing 10-14h will be forged, obtain high-elongation mould steel.
Beneficial effect: the high-elongation mould steel wearability that the present invention provides is good, hardness is high, resistance to impact good, heat treatment
Deform little, service life is long.This high-elongation mould steel is applicable to manufacture various high accuracy, long-life cold-working mould, cutlery
And measurer, such as thread rolling die, cold extrusion drift, complex-shaped punching concave die, cold extruding die, cylindrical die roll, thread rolling wheel, cold shearing
Cutter and fine measuring instrument etc..
The high-elongation mould steel that the present invention provides includes multiple nonmetal, metal and transition metal, these elements
Addition and work in coordination, substantially increase the mechanical property of material.This high-elongation mould steel purity is high, quality is good, this
Bright by strict various nonmetal, metals and the content of transition metal of controlling, thus improve spheroidal graphite cast-iron intensity and
Plasticity.In this high-elongation mould steel, silicone content is higher, enables the crystallization temperature of silicon close to eutectic point, thus can subtract greatly
In few alloy, the formation of shrinkage defect, significantly improves the consistency of cast structure, thus further increases the plasticity of cast iron.Should
In spheroidal graphite cast-iron, content of strontium is higher, beneficially alloy purification melt, remove the removal of impurity, refinement arborescent structure, hinder recrystallization and crystalline substance
Grain length is big, improve alloy heat stability, thus improves intensity and the plasticity of this high-elongation mould steel.
The high-elongation mould steel that the present invention provides is lightweight, quality good, intensity is high, plasticity is high, good flowing properties, preparation
Technique is simple, cost is relatively low.
Detailed description of the invention
According to following embodiment, the present invention be may be better understood.But, as it will be easily appreciated by one skilled in the art that reality
Execute concrete material proportion, process conditions and result thereof described by example and be merely to illustrate the present invention, and should also will not limit
The present invention described in detail in claims processed.
Embodiment 1
High-elongation mould steel, including the component of following percentage by weight: C 3.9%, Si 4.2%, Mn 0.89%, Cr
10.5%, Mo 0.67%, W 1.95%, V 1.71%, P 0.08%, S 0.02%, Cu 0.49%, Mg 0.56%, Ti
0.28%, Sr 0.68%, B 0.65%, Zn 0.67%, Re 0.24%, Pb 0.60%, Be 0.04%, Sc 0.29%,
Ni 0.54%, La 0.02%, Al 0.25%, remaining is ferrum, and each constituent mass percentage ratio sum is 100%.
Present invention also offers the preparation method of above-mentioned high-elongation mould steel, comprise the following steps:
(1) each raw material is smelted 5h, blowing argon gas 1500 DEG C of refine 2h of stirring in 1500 DEG C, obtain primary molten steel；
(2) by primary molten steel vacuum outgas 20min under 1500 DEG C of 80Pa, high-purity molten steel is obtained；
(3) high-purity molten steel is cast at 1400 DEG C, 800 DEG C of annealing 12h, stand after being cooled to 400 DEG C and be cooled to room
Temperature, obtains electroslag bar；
(4) use vacuum consumable remelting furnace to consutrode rod remelting, remelting voltage 65V, electric current 11000A, obtain steel ingot；
(5) by steel ingot 800 DEG C of cycle annealing 18h of son, 1100 DEG C of forgings, forging material is obtained；
(6) material 800 DEG C annealing 14h will be forged, obtain high-elongation mould steel.
Embodiment 2
High-elongation mould steel, including the component of following percentage by weight: C 3.8%, Si 4.0%, Mn 0.88%, Cr
10.4%, Mo 0.66%, W 1.96%, V1.72%, P 0.09%, S 0.03%, Cu 0.50%, Mg 0.55%, Ti
0.27%, Sr 0.66%, B 0.64%, Zn 0.66%, Re 0.25%, Pb 0.61%, Be 0.05%, Sc 0.30%,
Ni 0.55%, La 0.01%, Al 0.24%, remaining is ferrum, and each constituent mass percentage ratio sum is 100%.
Present invention also offers the preparation method of above-mentioned high-elongation mould steel, comprise the following steps:
(1) each raw material is smelted 3h, blowing argon gas 1600 DEG C of refine 1h of stirring in 1600 DEG C, obtain primary molten steel；
(2) by primary molten steel vacuum outgas 10min under 1600 DEG C of 60-80Pa, high-purity molten steel is obtained；
(3) high-purity molten steel is cast at 1500 DEG C, 900 DEG C of annealing 8h, stand after being cooled to 500 DEG C and be cooled to room
Temperature, obtains electroslag bar；
(4) use vacuum consumable remelting furnace to consutrode rod remelting, remelting voltage 60V, electric current 10000A, obtain steel ingot；
(5) by steel ingot in 900 DEG C of cycle annealing 14h, 1200 DEG C of forgings, forging material is obtained；
(6) material 900 DEG C annealing 10h will be forged, obtain high-elongation mould steel.
Embodiment 3
High-elongation mould steel, including the component of following percentage by weight: C 4.0%, Si 4.3%, Mn 0.90%, Cr
10.6%, Mo 0.68%, W 1.94%, V 1.70%, P 0.07%, S 0.01%, Cu 0.48%, Mg 0.57%, Ti
0.29%, Sr 0.70%, B 0.66%, Zn 0.68%, Re 0.23%, Pb 0.59%, Be 0.03%, Sc 0.28%,
Ni 0.53%, La 0.03%, Al 0.26%, remaining is ferrum, and each constituent mass percentage ratio sum is 100%.
Embodiment 4
High-elongation mould steel, including the component of following percentage by weight: C 3.6%, Si 3.7%, Mn 0.86%, Cr
10.2%, Mo 0.61%, W 2.06%, V 1.76%, P 0.10%, S 0.03%, Cu 0.53%, Mg 0.50%, Ti
0.21%, Sr 0.52%, B 0.61%, Zn 0.64%, Re 0.29%, Pb 0.63%, Be 0.07%, Sc 0.34%,
Ni 0.57%, La 0.01%, Al 0.20%, remaining is ferrum, and each constituent mass percentage ratio sum is 100%..
Embodiment 5
Improve as another kind, including the component of following percentage by weight: C 4.1%, Si 4.6%, Mn 0.92%,
Cr10.8%, Mo 00.72%, W 1.91%, V 1.67%, P 0.05%, S 0.01%, Cu 0.46%, Mg 0.62%,
Ti 0.34%, Sr 0.81%, B 0.73%, Zn 0.72%, Re 0.21%, Pb 0.57%, Be 0.02%, Sc
0.26%, Ni 0.50%, La 0.03%, Al 0.30%, remaining is ferrum, and each constituent mass percentage ratio sum is 100%.
Embodiment 6
The high-elongation mould steel of embodiment 1 to 5 is cast coupon, measures its mechanical property.
The mechanical property of the high-elongation mould steel coupon of table 1 embodiment 1 to 5
Hardness measurement method: according to GB/T230.1；As seen from the above table, the present invention provide high-elongation mould steel its prolong
The rate of stretching is up to more than 14, improves more than 30% than commercially available SKD11.From hardness height, the high-elongation mould steel of the present invention is resistance to
Mill property is good.
Claims (4)
1. a high-elongation mould steel, it is characterised in that: include the component of following percentage by weight: C 3.6-4.1%, Si
3.7-4.6%, Mn 0.86-0.92%, Cr 10.2-10.8%, Mo 0.61-0.72%, W 1.91-2.06%, V 1.67-
1.76%, P 0.05-0.10%, S 0.01-0.03%, Cu 0.46-0.53%, Mg 0.50-0.62%, Ti 0.21-
0.34%, Sr 0.52-0.81%, B 0.61-0.73%, Zn 0.64-0.72%, Re 0.21-0.29%, Pb 0.57-
0.63%, Be 0.02-0.07%, Sc 0.26-0.34%, Ni 0.50-0.57%, La 0.01-0.03%, Al 0.20-
0.30%, remaining is ferrum, and each constituent mass percentage ratio sum is 100%.
A kind of high-elongation mould steel the most according to claim 1, it is characterised in that: include the group of following percentage by weight
Part: C 3.8-4.0%, Si 4.0-4.3%, Mn 0.88-0.90%, Cr 10.4-10.6%, Mo 0.66-0.68%, W
1.94-1.96%, V 1.70-1.72%, P 0.07-0.09%, S 0.01-0.03%, Cu 0.48-0.50%, Mg 0.55-
0.57%, Ti 0.27-0.29%, Sr 0.66-0.70%, B 0.64-0.66%, Zn 0.66-0.68%, Re 0.23-
0.25%, Pb 0.59-0.61%, Be 0.03-0.05%, Sc 0.28-0.30%, Ni 0.53-0.55%, La 0.01-
0.03%, Al 0.24-0.26%, remaining is ferrum, and each constituent mass percentage ratio sum is 100%.
A kind of high-elongation mould steel the most according to claim 1, it is characterised in that: include the group of following percentage by weight
Part: C 3.9%, Si 4.2%, Mn 0.89%, Cr 10.5%, Mo 0.67%, W 1.95%, V 1.71%, P 0.08%,
S 0.02%, Cu 0.49%, Mg 0.56%, Ti 0.28%, Sr 0.68%, B 0.65%, Zn 0.67%, Re
0.24%, Pb 0.60%, Be 0.04%, Sc 0.29%, Ni 0.54%, La 0.02%, Al 0.25%, remaining is ferrum,
Each constituent mass percentage ratio sum is 100%.
4. the preparation method of a high-elongation mould steel, it is characterised in that: comprise the following steps:
(1) each raw material is smelted 3-5h, blowing argon gas 1500-1600 DEG C of refine 1-2h of stirring in 1500-1600 DEG C, obtain primary steel
Water；
(2) by primary molten steel vacuum outgas 10-20min under 1500-1600 DEG C of 60-80Pa, high-purity molten steel is obtained；
(3) high-purity molten steel is cast at 1400-1500 DEG C, 800-900 DEG C of annealing 8-12h, quiet after being cooled to 400-500 DEG C
Put and be cooled to room temperature, obtain electroslag bar；
(4) use vacuum consumable remelting furnace to consutrode rod remelting, remelting voltage 60-65V, electric current 10000-11000A, obtain
Steel ingot；
(5) by steel ingot in 800-900 DEG C of cycle annealing 14-18h, 1100-1200 DEG C of forging, forging material is obtained；
(6) material 800-900 DEG C annealing 10-14h will be forged, obtain high-elongation mould steel.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106756447A (en) * | 2016-11-24 | 2017-05-31 | 江苏雨燕模塑有限公司 | A kind of high-strength durable automobile die material and preparation method thereof |
| CN111647807A (en) * | 2020-05-18 | 2020-09-11 | 樟树市兴隆高新材料有限公司 | High-alloy die steel and preparation process thereof |
| CN111647795A (en) * | 2020-04-29 | 2020-09-11 | 樟树市兴隆高新材料有限公司 | Cold-rolled die steel and preparation method thereof |
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| CN102978517A (en) * | 2012-12-14 | 2013-03-20 | 江苏天工工具有限公司 | Cold working die steel and preparation method thereof |
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| CN102978517A (en) * | 2012-12-14 | 2013-03-20 | 江苏天工工具有限公司 | Cold working die steel and preparation method thereof |
| CN103194685A (en) * | 2013-04-02 | 2013-07-10 | 安泰科技股份有限公司 | Ceramimetallurgical high-wear-resistance high-toughness cold work die steel and preparation method thereof |
| CN104532135A (en) * | 2014-12-24 | 2015-04-22 | 河冶科技股份有限公司 | Cold work die steel and preparation method thereof |
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| CN111647795A (en) * | 2020-04-29 | 2020-09-11 | 樟树市兴隆高新材料有限公司 | Cold-rolled die steel and preparation method thereof |
| CN111647795B (en) * | 2020-04-29 | 2022-03-04 | 樟树市兴隆高新材料有限公司 | Cold-rolled die steel and preparation method thereof |
| CN111647807A (en) * | 2020-05-18 | 2020-09-11 | 樟树市兴隆高新材料有限公司 | High-alloy die steel and preparation process thereof |
| CN111647807B (en) * | 2020-05-18 | 2022-03-04 | 樟树市兴隆高新材料有限公司 | High-alloy die steel and preparation process thereof |
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