CN103774053A - High-hardness alloy steel material for composite roller surface layer and preparation method thereof - Google Patents
High-hardness alloy steel material for composite roller surface layer and preparation method thereof Download PDFInfo
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- CN103774053A CN103774053A CN201310701649.1A CN201310701649A CN103774053A CN 103774053 A CN103774053 A CN 103774053A CN 201310701649 A CN201310701649 A CN 201310701649A CN 103774053 A CN103774053 A CN 103774053A
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- 229910000851 Alloy steel Inorganic materials 0.000 title claims abstract description 18
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims description 7
- 239000000463 material Substances 0.000 title abstract description 8
- 239000002344 surface layer Substances 0.000 title abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000007670 refining Methods 0.000 claims abstract description 19
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 17
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 12
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052742 iron Inorganic materials 0.000 claims abstract description 11
- 238000005266 casting Methods 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 9
- 239000010955 niobium Substances 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 7
- 239000011733 molybdenum Substances 0.000 claims abstract description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 7
- 239000010937 tungsten Substances 0.000 claims abstract description 7
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 7
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 6
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 239000010941 cobalt Substances 0.000 claims abstract description 4
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000010792 warming Methods 0.000 claims description 15
- 238000005275 alloying Methods 0.000 claims description 13
- 239000011651 chromium Substances 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 229910052804 chromium Inorganic materials 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229910000805 Pig iron Inorganic materials 0.000 claims description 6
- 229910052729 chemical element Inorganic materials 0.000 claims description 6
- 239000012467 final product Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- 235000002918 Fraxinus excelsior Nutrition 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- 239000002956 ash Substances 0.000 claims description 3
- 229910021538 borax Inorganic materials 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000006477 desulfuration reaction Methods 0.000 claims description 3
- 230000023556 desulfurization Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 claims description 3
- 229910000514 dolomite Inorganic materials 0.000 claims description 3
- 239000010459 dolomite Substances 0.000 claims description 3
- 239000010977 jade Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 3
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 3
- 239000004328 sodium tetraborate Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 229910000677 High-carbon steel Inorganic materials 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 239000010410 layer Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000007669 thermal treatment Methods 0.000 abstract 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical group [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 229910052688 Gadolinium Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- PVGBHEUCHKGFQP-UHFFFAOYSA-N sodium;n-[5-amino-2-(4-aminophenyl)sulfonylphenyl]sulfonylacetamide Chemical compound [Na+].CC(=O)NS(=O)(=O)C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 PVGBHEUCHKGFQP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention provides a high-hardness alloy steel material for a composite roller surface layer. The material comprises the following chemical components in percentage by mass: 0.8-0.9 percent of carbon, 2.5-3 percent of tungsten, 2.2-2.5 percent of molybdenum, 0.5-0.8 percent of vanadium, 3.5-4.0 percent of chrome, 0.05-0.10 percent of niobium, 0.05-0.10 percent of cerium, 1.4-1.6 percent of nickel, 0.06-0.09 percent of cobalt, less than or equal to 0.030 percent of P, less than or equal to 0.030 percent of S, and the balance of iron. According to the high-hardness alloy steel material, the alloy steel has the advantages of high temperature resistance, high red-hardness, high hardness, good toughness fit, good surface abrasion resistance, good peeling resistance, low cold brittleness, good processing performance and strong binding force with an intermediate layer due to addition of nickel, niobium, cerium and other alloy elements based on high-carbon steel through twice refining by reasonably controlling thermal treatment temperature after casting, and dosing raw materials in batches. The high-hardness alloy steel material is applicable to the surface layer of a composite roller, and is uniform in hardness and long in service life.
Description
Technical field
The present invention relates to roll technology field, relate in particular to a kind of composite roll upper layer high hardness alloy steel and preparation method thereof.
Background technology
Roll is the central module of wire rod machine, and gadolinium part is carried out to gadolinium processing processed, makes metal produce the main tool of viscous deformation.Roll working load is large, bears very large gadolinium pressing pressure and torsional moment, and has very strong shock load and very large mass force; In addition, the Working environment of roll is harsh, bear very high temperature, has again water coolant, is in the cold and hot lower work that accompanies each other, serious wear.
High carbon and chromium cast steel, the several types such as ordinary steel and Wimet.High carbon and chromium cast steel is owing to there being certain wear resistance, and low price, is therefore widely used, and high carbon and chromium running roller has 13Cr13WMoV and 18Cr20WMoV with the conventional material of steel.Because these two kinds of steel hardness and wear resistance mainly rely on the carbide Cr of chromium
7c
3and Cr
23c
6, thermostability is poor, generally more than 450 ℃, starts agglomeration and softening gradually.In the time of 550 ℃, hardness will be down to below HRC50.And the temperature of wire rod running roller under operation can reach 550 ℃ of left and right, this just makes running roller obviously reduce work-ing life.The secondary hardening temperature of ordinary steel is 550 ℃ of left and right, and hardness maintains HRC62 ~ 64, can improve significantly the work-ing life of running roller; Wimet also has good hot hardness and wear resistance.But because the manufacturing cost of ordinary steel and Wimet is too high, in the use of high line running roller material, be restricted.Therefore study excellent performance, the roll material that cost is cheaper just seems particularly important.
Summary of the invention
The object of the present invention is to provide a kind of composite roll upper layer high hardness alloy steel and preparation method thereof, this alloy material has that hardness is high, wear resistance good, resistant to elevated temperatures advantage.
Technical scheme of the present invention is as follows:
A kind of composite roll upper layer high hardness alloy steel, is characterized in that: chemical element composition and mass percent thereof that it contains are: carbon 0.8-0.9, tungsten 2.5-3, molybdenum 2.2-2.5, vanadium 0.5-0.8, chromium 3.5-4.0, niobium 0.05-0.10, cerium 0.05-0.10, nickel 1.4-1.6, cobalt 0.06-0.09, P≤0.030, S≤0.030, surplus are iron.
The production method of high hardness alloy steel for described composite roll upper layer, is characterized in that:
(1), preparing the pig iron and scrap iron originates as ferrous substrate in 1:0.5-1.5 ratio, the pig iron is added to drop in stove and melt, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying constituent and carry out alloying, then add scrap iron fusing, add refining agent secondary refining, detection and adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove be: (1) vanadium, chromium; (2) tungsten, molybdenum, niobium; (3) other remaining components; The each batch of timed interval of dropping into element is 22-25 minute, after feeding intake, stirs.
Described casting postheat treatment is: be first warming up to 660-670 ℃ by room temperature with 200-210 ℃/h of speed, and insulation 40-50 minute, then be warming up to 970-980 ℃ with 220-230 ℃/h of speed, insulation 4-5 hour; Be cooled to 570-580 ℃ with 170-180 ℃/h of speed again, then be warming up to 720-730 ℃ with 210-220 ℃/h of speed, then be cooled to 220-230 ℃ with 170-180 ℃/h of speed, insulation 3-4 hour; Be warming up to 340-350 ℃ with 100-110 ℃/h of speed again, insulation 40-50 minute, then be warming up to 520-530 ℃ with 100-110 ℃/h of speed, insulation 3-4 hour, takes out air cooling and get final product.
Described refining agent is made up of the raw material of following weight part: instrument comminuted steel shot 3-5, clay 10-12, Sodium Silicofluoride 3-4, sodium carbonate 2-3, sodium tetraborate 1-2, stalk ashes 4-5, potassium felspar sand 36-40, jade powder 3-4, carclazyte 6-8, ground dolomite 3-4; Preparation method mixes each raw material, is heated to 2600-2900 ℃ to molten state, stirs 10-15 minute, is poured into Quench in pure water, then is ground into 100-200 order powder, washes with water for several times, dries and get final product.
Beneficial effect of the present invention
The present invention is by add the multiple alloying elements such as nickel, niobium, cerium on the basis of high carbon steel, and through secondary refining, postheat treatment temperature is cast in rationally control, throwing raw materials in batches, steel alloy is had high temperature resistant, red hard height, hardness degree and toughness are worked good, and it is good to have surface abrasion resistance, antistripping is good, cold shortness is low, good processability, strong with middle layer bonding force, be suitable for the upper layer of composite roll, hardness is even, long service life.The present invention uses part scrap iron as raw material, makes more stable uniform of alloy quality, improves comprehensive mechanical property.Refining agent of the present invention is for Foundry Production, and the degree of porosity obviously improving in yield rate, particularly foundry goods reduces 1-2 degree, can not produce pore at cast(ing) surface, and trapped oxide also obviously reduces, and oxide inclusion is 2 grades of left and right.
Embodiment
A kind of composite roll upper layer high hardness alloy steel, chemical element composition and mass percent thereof that it contains are: carbon 0.8-0.9, tungsten 2.5-3, molybdenum 2.2-2.5, vanadium 0.5-0.8, chromium 3.5-4.0, niobium 0.05-0.10, cerium 0.05-0.10, nickel 1.4-1.6, cobalt 0.06-0.09, P≤0.030, S≤0.030, surplus are iron.
Described composite roll upper layer by the production method of high hardness alloy steel is:
(1), preparing the pig iron and scrap iron originates as ferrous substrate in 1:1 ratio, the pig iron is added to drop in stove and melt, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying constituent and carry out alloying, then add scrap iron fusing, add refining agent secondary refining, detection and adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove be: (1) vanadium, chromium; (2) tungsten, molybdenum, niobium; (3) other remaining components; The each batch of timed interval of dropping into element is 24 minutes, after feeding intake, stirs.
Described casting postheat treatment is: be first warming up to 665 ℃ by room temperature with 205 ℃/h of speed, be incubated 45 minutes, then be warming up to 975 ℃ with 225 ℃/h of speed, be incubated 4.5 hours; Be cooled to 575 ℃ with 175 ℃/h of speed again, then be warming up to 725 ℃ with 215 ℃/h of speed, then be cooled to 225 ℃ with 175 ℃/h of speed, be incubated 3.5 hours; Be warming up to 345 ℃ with 105 ℃/h of speed again, be incubated 45 minutes, then be warming up to 525 ℃ with 105 ℃/h of speed, be incubated 3.5 hours, take out air cooling and get final product.
Described refining agent by following weight part (kilogram) raw material make: described refining agent by following weight part (kilogram) raw material make: instrument comminuted steel shot 3, clay 10, Sodium Silicofluoride 4, sodium carbonate 2, sodium tetraborate 1, stalk ashes 4, potassium felspar sand 36, jade powder 3, carclazyte 6, ground dolomite 3; Preparation method mixes each raw material, is heated to 2600-2900 ℃ to molten state, stirs 10-15 minute, is poured into Quench in pure water, then is ground into 100-200 order powder, washes with water for several times, dries and get final product.
Composite roll upper layer of the present invention by the mechanical property of high hardness alloy steel is: tensile strength 1289MPa, yield strength 918MPa, unit elongation 15%, relative reduction in area 37%, impact absorbing energy 56J, impelling strength 66J/cm2, hardness 289HB.
Claims (4)
1. a composite roll upper layer high hardness alloy steel, is characterized in that: chemical element composition and mass percent thereof that it contains are: carbon 0.8-0.9, tungsten 2.5-3, molybdenum 2.2-2.5, vanadium 0.5-0.8, chromium 3.5-4.0, niobium 0.05-0.10, cerium 0.05-0.10, nickel 1.4-1.6, cobalt 0.06-0.09, P≤0.030, S≤0.030, surplus are iron.
2. the production method of high hardness alloy steel for composite roll upper layer according to claim 1, is characterized in that:
(1), preparing the pig iron and scrap iron originates as ferrous substrate in 1:0.5-1.5 ratio, the pig iron is added to drop in stove and melt, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying constituent and carry out alloying, then add scrap iron fusing, add refining agent secondary refining, detection and adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove be: (1) vanadium, chromium; (2) tungsten, molybdenum, niobium; (3) other remaining components; The each batch of timed interval of dropping into element is 22-25 minute, after feeding intake, stirs.
3. the production method of high hardness alloy steel for composite roll upper layer according to claim 2, it is characterized in that: described casting postheat treatment is: be first warming up to 660-670 ℃ by room temperature with 200-210 ℃/h of speed, insulation 40-50 minute, be warming up to 970-980 ℃ with 220-230 ℃/h of speed again, insulation 4-5 hour; Be cooled to 570-580 ℃ with 170-180 ℃/h of speed again, then be warming up to 720-730 ℃ with 210-220 ℃/h of speed, then be cooled to 220-230 ℃ with 170-180 ℃/h of speed, insulation 3-4 hour; Be warming up to 340-350 ℃ with 100-110 ℃/h of speed again, insulation 40-50 minute, then be warming up to 520-530 ℃ with 100-110 ℃/h of speed, insulation 3-4 hour, takes out air cooling and get final product.
4. the production method of high hardness alloy steel for composite roll upper layer according to claim 2, is characterized in that: described refining agent is made up of the raw material of following weight part: instrument comminuted steel shot 3-5, clay 10-12, Sodium Silicofluoride 3-4, sodium carbonate 2-3, sodium tetraborate 1-2, stalk ashes 4-5, potassium felspar sand 36-40, jade powder 3-4, carclazyte 6-8, ground dolomite 3-4; Preparation method mixes each raw material, is heated to 2600-2900 ℃ to molten state, stirs 10-15 minute, is poured into Quench in pure water, then is ground into 100-200 order powder, washes with water for several times, dries and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310701649.1A CN103774053B (en) | 2013-12-19 | 2013-12-19 | A kind of composite roll upper layer high hardness alloy steel and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310701649.1A CN103774053B (en) | 2013-12-19 | 2013-12-19 | A kind of composite roll upper layer high hardness alloy steel and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103774053A true CN103774053A (en) | 2014-05-07 |
| CN103774053B CN103774053B (en) | 2015-11-25 |
Family
ID=50566804
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310701649.1A Expired - Fee Related CN103774053B (en) | 2013-12-19 | 2013-12-19 | A kind of composite roll upper layer high hardness alloy steel and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN103774053B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111139394A (en) * | 2019-12-24 | 2020-05-12 | 中钢集团邢台机械轧辊有限公司 | Preparation method of high-performance rough rolling working roll |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104669A (en) * | 1985-07-08 | 1987-02-18 | 查瓦尼·凯丁 | Forged cold rolling roll |
| JPH02298234A (en) * | 1989-05-10 | 1990-12-10 | Hitachi Metals Ltd | Tool steel for warm and hot working |
| JP2003286543A (en) * | 2002-03-28 | 2003-10-10 | Nippon Steel Corp | High-strength low-Cr ferrite-based steel pipe for boilers excellent in long-term creep characteristics and method for producing the same |
| JP2004100027A (en) * | 2002-09-12 | 2004-04-02 | Nippon Steel Corp | Liquid phase diffusion bonding steel with excellent low temperature transformation cracking resistance |
| CN102041454A (en) * | 2009-10-21 | 2011-05-04 | 宝山钢铁股份有限公司 | High hardness steel for forging and forming cold roller |
-
2013
- 2013-12-19 CN CN201310701649.1A patent/CN103774053B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104669A (en) * | 1985-07-08 | 1987-02-18 | 查瓦尼·凯丁 | Forged cold rolling roll |
| JPH02298234A (en) * | 1989-05-10 | 1990-12-10 | Hitachi Metals Ltd | Tool steel for warm and hot working |
| JP2003286543A (en) * | 2002-03-28 | 2003-10-10 | Nippon Steel Corp | High-strength low-Cr ferrite-based steel pipe for boilers excellent in long-term creep characteristics and method for producing the same |
| JP2004100027A (en) * | 2002-09-12 | 2004-04-02 | Nippon Steel Corp | Liquid phase diffusion bonding steel with excellent low temperature transformation cracking resistance |
| CN102041454A (en) * | 2009-10-21 | 2011-05-04 | 宝山钢铁股份有限公司 | High hardness steel for forging and forming cold roller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111139394A (en) * | 2019-12-24 | 2020-05-12 | 中钢集团邢台机械轧辊有限公司 | Preparation method of high-performance rough rolling working roll |
| CN111139394B (en) * | 2019-12-24 | 2022-01-11 | 中钢集团邢台机械轧辊有限公司 | Preparation method of high-performance rough rolling working roll |
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| Publication number | Publication date |
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| CN103774053B (en) | 2015-11-25 |
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Denomination of invention: High-hardness alloy steel material for composite roller surface layer and preparation method thereof Effective date of registration: 20190423 Granted publication date: 20151125 Pledgee: Huizhou bank Limited by Share Ltd. Ma'anshan Development Zone Branch Pledgor: MAANSHAN FANGYUAN MATERIAL ENGINEERING CO.,LTD. Registration number: 2019340000211 |
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