CN1598030A - Improved nickel chromium molybdenum inlimited cold hard cast-iron for roller and its compound roller - Google Patents
Improved nickel chromium molybdenum inlimited cold hard cast-iron for roller and its compound roller Download PDFInfo
- Publication number
- CN1598030A CN1598030A CN 200410041497 CN200410041497A CN1598030A CN 1598030 A CN1598030 A CN 1598030A CN 200410041497 CN200410041497 CN 200410041497 CN 200410041497 A CN200410041497 A CN 200410041497A CN 1598030 A CN1598030 A CN 1598030A
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- CN
- China
- Prior art keywords
- cast iron
- nickel chromium
- roll
- ductile cast
- chromium triangle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910001018 Cast iron Inorganic materials 0.000 title abstract description 5
- OGSYQYXYGXIQFH-UHFFFAOYSA-N chromium molybdenum nickel Chemical compound [Cr].[Ni].[Mo] OGSYQYXYGXIQFH-UHFFFAOYSA-N 0.000 title 1
- 150000001875 compounds Chemical class 0.000 title 1
- 229910052796 boron Inorganic materials 0.000 claims abstract description 19
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 16
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 229910052750 molybdenum Inorganic materials 0.000 claims description 29
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 25
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 25
- 229910018487 Ni—Cr Inorganic materials 0.000 claims description 25
- 239000011733 molybdenum Substances 0.000 claims description 25
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 24
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 15
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 14
- 239000010955 niobium Substances 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 9
- 229910000521 B alloy Inorganic materials 0.000 claims description 4
- 229910000592 Ferroniobium Inorganic materials 0.000 claims description 4
- 229910001257 Nb alloy Inorganic materials 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 239000011651 chromium Substances 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 24
- 238000005096 rolling process Methods 0.000 abstract description 7
- 230000006872 improvement Effects 0.000 abstract description 5
- 238000005098 hot rolling Methods 0.000 abstract description 3
- 238000005097 cold rolling Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 229910002804 graphite Inorganic materials 0.000 description 8
- 239000010439 graphite Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- SGGMZBKLQLBBLK-UHFFFAOYSA-N iron(4+) Chemical compound [Fe+4] SGGMZBKLQLBBLK-UHFFFAOYSA-N 0.000 description 6
- 230000003245 working effect Effects 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 5
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- MHKWSJBPFXBFMX-UHFFFAOYSA-N iron magnesium Chemical compound [Mg].[Fe] MHKWSJBPFXBFMX-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
This invention relates to an improvement of NiCrMo infinite cooling hard cast iron used in roll materials of metal machining hot rolling and cold rolling plate, especially relates to a kind of NiCrMo infinite cold hard cast iron used in roll with excellent wear resistance and thermal crack resistance property, long longevity, the character is adding 0.03-0.1%(WT) B and 0.2-1.5% Nb in the component of NiCrMo infinite cold hard cast iron. As well as the composite roll made from this materials. Because of the addition of B and Nb, the wear resistance and thermal crack resistance property are remarkably improved, which overcomes the disadvantage of raw materials. The operating life of composite roll whose working layers are made from this materials is enormously improved compared with original life. The plate band rolling amount increases more than 20%; the improvement of thermal crack resistance property.
Description
Technical field
The invention relates to metal processing hot rolling, cold rolled sheet roll material---the improvement of nickel chromium triangle molybdenum infinitely chilled ductile cast iron, relate in particular to a kind of wear resistance and the heat resistanceheat resistant crack performance is good, the roll of long service life is with nickel chromium triangle molybdenum infinitely chilled ductile cast iron and the composite roll made of material thus.
Background technology
Existing plate belt hot rolling, the cold rolling roll material of using---nickel chromium triangle molybdenum infinitely chilled ductile cast iron (IV) (GB/T1504-91), composition is: C:2.90～3.70%, Si:0.60～1.20%, Mn:0.40～1.20%, Ni:3.01～5.00%, Cr:1.00～2.00%, Mo:0.20～0.60%.This material is because graphite is flat strip shaped, and carbide is reticulated structure, so matrix strength is relatively low, therefore its wear resistance still feels not enough in actual use, work-ing life not long (the millimeter amount of rolling is generally the 2000-3000 ton); Secondly, because carbide is reticulated structure, and the side effect in graphite hole; make that the heat resistanceheat resistant crack performance of this material is not good enough yet, made roll is in plate strip rolling process, along with the increase of amount of rolling can produce thermal crack; therefore need often to shut down and change roll, it is removed reparation.Not only influence when class production efficiency of milling train, increase manipulation strength and the repair amount changed; But also the surface quality of meeting influence of rolled strip, thermal crack produces repairs the work-ing life of also having reduced roll, causes production cost higher.
Chinese patent 1055424C discloses a kind of nickel-chrome-molybdenum alloy cast iron of optimizing proportioning components, and composition is: C:3.00～3.50%, Si:0.60～1.20%, Mn:0.30～0.80%, Ni:3.00～4.50%, Cr:0.60～1.50%, Mo:0.60～1.20%.Graphite still has and partly is strip in this material, still can produce matrix and cut from effect, so its intensity and the more former nickel chromium triangle molybdenum of wear resistance infinitely chilled ductile cast iron (IV) improves not obviously, is worth improved place so still have.
Summary of the invention
The object of the invention is to overcome the deficiency of above-mentioned prior art, provides a kind of wear resisting property good, and the heat resistanceheat resistant crack performance is excellent, the roll of long service life nickel chromium triangle molybdenum infinitely chilled ductile cast iron.
Another object of the present invention is to provide a kind of above-mentioned materials that uses to make, have long service life, roll the measured composite roll of plate matter.
The present invention's first purpose realizes, the main improvement is in the described nickel chromium triangle molybdenum of GB/T1504-91 infinitely chilled ductile cast iron (IV) component, add boron and niobium, make the reticulated structure of carbide obtain partly eliminating, graphite form changes, and is favourable ball-like structure, thereby reaches metallographic structure and the performance that changes material, improve the wear resistance and the heat resistanceheat resistant crack performance of material with this, prolonged the work-ing life of material.Specifically, roll of the present invention nickel chromium triangle molybdenum infinitely chilled ductile cast iron, comprise C:2.90～3.70%, Si:0.60～1.20%, Mn:0.40～1.20%, Ni:3.01～5.00%, Cr:1.00～2.00%, Mo:0.20～0.60%, the nickel chromium triangle molybdenum infinitely chilled ductile cast iron that surplus Fe forms is characterized in that being added with in the composition boron of 0.03-0.1% (WT) and the niobium of 0.2-1.5% (boron and niobium are all in pure substance).
The present invention uses at roll and adds boron in the nickel chromium triangle molybdenum infinitely chilled ductile cast iron (IV), graphite form in the nickel chromium triangle molybdenum infinitely chilled ductile cast iron is changed, make former main graphite englobement in the form of sheets, make after the material graphite migration in use, in matrix, form the almost spherical hole, thereby reduced former flake graphite migration back and formed flat-shaped hole, matrix has been cut from the big defective of effect; Secondly, spherically-shaped cavity can play the effect of blocking-up crack propagation.The adding of boron of the present invention can be adopted pure boron, also can adopt boron alloy.The present invention adds cost for reducing, and can preferably adopt with the boron alloy form to add, and for example preferably adopts the iron alloy of boron.The add-on of boron thinks comparatively suitable with 0.03-0.1% through test, and add-on is starkly lower than lower limit, and then it improves the DeGrain of performance; Add-on is obviously greater than higher limit, brings can on the contrary the over-all properties of material not wish the detrimentally affect that occurs.Above-mentioned thus add-on is an appropriate interval range, and is not extreme value, a spot of suitably depart from should be considered as identical with essence of the present invention.
The adding of niobium in the nickel chromium triangle molybdenum infinitely chilled ductile cast iron of the present invention (IV), main effect has changed the form of carbide in the material, thereby has improved the intensity of matrix and the wear resistance of material.The adding of niobium can add with simple substance niobium form equally, can certainly adopt the niobium alloy form to add, and is preferably and adopts the niobium alloy form to add, and for example preferably adopts the iron alloy of niobium, helps reduction and adds cost.The add-on of niobium is thought and can be starkly lower than this lower value at 0.2-1.5% through test, and is not obvious to improving the material property effect equally; Add-on is obviously greater than higher limit, and is not obvious to the further raising effect of material property again, but can cause the obvious increase of cost on the contrary, therefore determines this addition scope from the economy angle.Be that 0.7-1.5% is the most suitable especially with the add-on among the present invention.
The adding of boron of the present invention, niobium is identical with the adding method of other elements, has no special requirements.
The present invention's second purpose realizes, adopts above-mentioned materials to make the roll working lining, makes composite roll, has so both prolonged roll work-ing life, helps reducing the cost of roll again.
The present invention is because at roll material---during forming, nickel chromium triangle molybdenum infinitely chilled ductile cast iron (IV) adds boron and niobium, thereby the wear resistance and the heat resistanceheat resistant crack performance of material have significantly been changed, make all more original material of both performances obtain bigger raising, overcome raw-material deficiency.With this material is the composite roll that working lining is made, and nickel chromium triangle molybdenum infinitely chilled ductile cast iron (IV) roll that does not add boron and niobium work-ing life improves greatly, can make the amount of rolling of strip improve more than 20%; Because the improvement of heat resistanceheat resistant crack performance; also significantly reduce the shutdown roll change and repaired number of times; not only reduced operation labour intensity; but also can improve the operating rate of milling train; rolling output when increasing class; also help simultaneously the raising of rolled products surface quality, and improve roll work-ing life, these have all significantly reduced rolling cost.
Description of drawings
Fig. 1 is respectively prior art nickel chromium triangle molybdenum infinitely chilled ductile cast iron (IV) 100X, 400X, 1000X metallograph.
Show among the figure that carbide is reticulated structure; A is a flake graphite.
Fig. 2 is respectively nickel chromium triangle molybdenum infinitely chilled ductile cast iron 100X of the present invention, 400X, 1000X metallograph.
The carbide network structure is not obvious among the figure; B is a globular graphite;
Embodiment
Embodiment 1: form in the iron liquid at GB/T1504-91 nickel chromium triangle molybdenum infinitely chilled ductile cast iron (IV), add the ferro-boron of 0.05% (in pure substance), the ferrocolumbium of 0.8% (in pure substance).
Embodiment 2: as embodiment 1, add the ferro-boron of 0.07% (in pure substance) respectively, the ferrocolumbium of 1% (in pure substance).
Embodiment 3: as embodiment 1, add the ferro-boron of 0.09% (in pure substance) respectively, the ferrocolumbium of 1.3% (in pure substance).
Embodiment 4: make the roll working lining with above-mentioned materials, make the core of the roll material with magnesium iron or gray iron, make composite roll.Outer thickness is decided on customer requirements.
Claims (7)
1, a kind of roll nickel chromium triangle molybdenum infinitely chilled ductile cast iron, comprise C:2.90～3.70%, Si:0.60～1.20%, Mn:0.40～1.20%, Ni:3.01～5.00%, Cr:1.00～2.00%, Mo:0.20～0.60%, the nickel chromium triangle molybdenum infinitely chilled ductile cast iron that surplus Fe forms is characterized in that being added with in the composition boron of 0.03-0.1% (WT) and the niobium of 0.2-1.5% (boron and niobium are all in pure substance).
2, according to the described roll of claim 1 nickel chromium triangle molybdenum infinitely chilled ductile cast iron, it is characterized in that said niobium add-on is 0.7-1.5%.
3, according to claim 1 or 2 described rolls nickel chromium triangle molybdenum infinitely chilled ductile cast iron, it is characterized in that said boron is boron alloy.
4, according to claim 1 or 2 described rolls nickel chromium triangle molybdenum infinitely chilled ductile cast iron, it is characterized in that said niobium is a niobium alloy.
5, according to the described roll of claim 3 nickel chromium triangle molybdenum infinitely chilled ductile cast iron, it is characterized in that said boron alloy is a ferro-boron.
6, according to the described roll of claim 4 nickel chromium triangle molybdenum infinitely chilled ductile cast iron, it is characterized in that said niobium alloy is a ferrocolumbium.
7, a kind of composite roll comprises working lining and core, it is characterized in that said working lining is the described nickel chromium triangle molybdenum of a claim 1-6 infinitely chilled ductile cast iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100414978A CN1327022C (en) | 2004-07-26 | 2004-07-26 | Improved nickel chromium molybdenum inlimited cold hard cast-iron for roller and its compound roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100414978A CN1327022C (en) | 2004-07-26 | 2004-07-26 | Improved nickel chromium molybdenum inlimited cold hard cast-iron for roller and its compound roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1598030A true CN1598030A (en) | 2005-03-23 |
| CN1327022C CN1327022C (en) | 2007-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100414978A Expired - Lifetime CN1327022C (en) | 2004-07-26 | 2004-07-26 | Improved nickel chromium molybdenum inlimited cold hard cast-iron for roller and its compound roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1327022C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386463C (en) * | 2005-05-11 | 2008-05-07 | 江苏共昌轧辊有限公司 | Improved composite high chromium steel roller and preparation process thereof |
| CN102703800A (en) * | 2012-05-21 | 2012-10-03 | 杭州中强轧辊有限公司 | Special high-nickel cold cast centrifugal roller for precision rolling of round steels by general wire rolling mills |
| CN104561760A (en) * | 2014-12-31 | 2015-04-29 | 铜陵市经纬流体科技有限公司 | High-toughness soft-seal brake valve body and preparing method thereof |
| CN106591678A (en) * | 2017-02-09 | 2017-04-26 | 江苏汇诚机械制造有限公司 | Preparation method of chromium-nickel-molybdenum alloy-cast-iron-based TiC/TiN steel-bonded carbide |
| CN106676249A (en) * | 2016-12-12 | 2017-05-17 | 广西大学 | Heat treatment method for cast iron grinding ball and grinding sheet guiding plate |
| CN106756460A (en) * | 2016-12-12 | 2017-05-31 | 广西大学 | A kind of cast-iron grinding ball, grinding guide plate and preparation method thereof |
| CN106801183A (en) * | 2017-02-09 | 2017-06-06 | 江苏汇诚机械制造有限公司 | A kind of preparation method of monikrom cast iron base TiN steel bonded carbide |
| CN106811647A (en) * | 2017-02-09 | 2017-06-09 | 江苏汇诚机械制造有限公司 | A kind of preparation method of monikrom cast iron base TiC/TiN steel bonded carbide high |
| CN110592467A (en) * | 2019-09-29 | 2019-12-20 | 马鞍山常裕机械设备有限公司 | Low-chromium alloy grinding ball and processing technology thereof |
| CN110819888A (en) * | 2019-11-15 | 2020-02-21 | 山东金泰轧辊股份有限公司 | High nickel bainite centrifugal composite roll collar and manufacturing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3632640B2 (en) * | 2001-08-31 | 2005-03-23 | Ｊｆｅスチール株式会社 | Roll outer layer material for hot rolling and composite roll for hot rolling |
-
2004
- 2004-07-26 CN CNB2004100414978A patent/CN1327022C/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386463C (en) * | 2005-05-11 | 2008-05-07 | 江苏共昌轧辊有限公司 | Improved composite high chromium steel roller and preparation process thereof |
| CN102703800A (en) * | 2012-05-21 | 2012-10-03 | 杭州中强轧辊有限公司 | Special high-nickel cold cast centrifugal roller for precision rolling of round steels by general wire rolling mills |
| CN104561760A (en) * | 2014-12-31 | 2015-04-29 | 铜陵市经纬流体科技有限公司 | High-toughness soft-seal brake valve body and preparing method thereof |
| CN106676249A (en) * | 2016-12-12 | 2017-05-17 | 广西大学 | Heat treatment method for cast iron grinding ball and grinding sheet guiding plate |
| CN106756460A (en) * | 2016-12-12 | 2017-05-31 | 广西大学 | A kind of cast-iron grinding ball, grinding guide plate and preparation method thereof |
| CN106591678A (en) * | 2017-02-09 | 2017-04-26 | 江苏汇诚机械制造有限公司 | Preparation method of chromium-nickel-molybdenum alloy-cast-iron-based TiC/TiN steel-bonded carbide |
| CN106801183A (en) * | 2017-02-09 | 2017-06-06 | 江苏汇诚机械制造有限公司 | A kind of preparation method of monikrom cast iron base TiN steel bonded carbide |
| CN106811647A (en) * | 2017-02-09 | 2017-06-09 | 江苏汇诚机械制造有限公司 | A kind of preparation method of monikrom cast iron base TiC/TiN steel bonded carbide high |
| CN110592467A (en) * | 2019-09-29 | 2019-12-20 | 马鞍山常裕机械设备有限公司 | Low-chromium alloy grinding ball and processing technology thereof |
| CN110592467B (en) * | 2019-09-29 | 2021-04-20 | 马鞍山常裕机械设备有限公司 | Low-chromium alloy grinding ball and processing technology thereof |
| CN110819888A (en) * | 2019-11-15 | 2020-02-21 | 山东金泰轧辊股份有限公司 | High nickel bainite centrifugal composite roll collar and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1327022C (en) | 2007-07-18 |
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Denomination of invention: Improved nickel chromium molybdenum inlimited cold hard cast-iron for roller and its compound roller Effective date of registration: 20170619 Granted publication date: 20070718 Pledgee: Jiangsu Yixing rural commercial bank Limited by Share Ltd. new sub branch Pledgor: JIANGSU GONGCHANG ROLL JOINT-STOCK Co.,Ltd. Registration number: 2017990000496 |
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