CN103526127B - A kind of deflector roll and manufacture method thereof - Google Patents
A kind of deflector roll and manufacture method thereof Download PDFInfo
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- CN103526127B CN103526127B CN201310490729.7A CN201310490729A CN103526127B CN 103526127 B CN103526127 B CN 103526127B CN 201310490729 A CN201310490729 A CN 201310490729A CN 103526127 B CN103526127 B CN 103526127B
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- deflector roll
- iron
- base superalloy
- insulation
- temperature
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 229910000601 superalloy Inorganic materials 0.000 claims abstract description 29
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 15
- 238000005495 investment casting Methods 0.000 claims abstract description 13
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 10
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 5
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 5
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 5
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 238000009413 insulation Methods 0.000 claims description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 238000010791 quenching Methods 0.000 claims description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- 230000000171 quenching effect Effects 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000009415 formwork Methods 0.000 claims description 6
- 238000001513 hot isostatic pressing Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000002344 surface layer Substances 0.000 claims description 4
- 238000005496 tempering Methods 0.000 claims description 4
- 238000007669 thermal treatment Methods 0.000 claims description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 3
- 239000004793 Polystyrene Substances 0.000 claims description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical group O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 3
- 238000000137 annealing Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 229910001566 austenite Inorganic materials 0.000 description 3
- 229910000734 martensite Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011224 oxide ceramic Substances 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of deflector roll, described deflector roll is iron-base superalloy, represent with weight percentage, consisting of of this iron-base superalloy: C:2.3 ~ 3.2%, Si:0.6 ~ 1.5%, Cr:29 ~ 35%, V:1.5 ~ 2.2%, V:0.82 ~ 1.2%, Mo:0.2 ~ 1.6%, Ni:7.0 ~ 8.8%, Ti:0.7 ~ 1.5%, Nb:0.2 ~ 0.6%, Ta:0.002 ~ 0.006%, rare earth: 0.18 ~ 0.28%, surplus is Fe and inevitable impurity, by specific precision casting step and heat treatment parameter process, make its strengthening phase reasonable layout, performance is increased dramatically.
Description
Technical field
The present invention relates to milling train spare and accessory parts field, be specifically related to deflector roll and manufacture method thereof.
Background technology
Along with mill milling speed improves, the performance requriements of deflector roll is more and more higher.But because the complexity of Working environment, deflector roll is short for work-ing life, and deflector roll has become the main consumable part on high-speed rod-rolling mill.At present, the deflector roll material usually adopted both at home and abroad has three kinds.The first is the high temperature steel with austenite structure; The second is wear resisting steel or the antifriction cast iron with martensitic stucture; The third is Wimet.Austenitic heat-resistance steel has good high-temperature stability and toughness, but wears no resistance, quick abrasion.And the mutual sticking tendency of austenite and wire rod (being organized as ferrite or austenite) itself is comparatively large, easily steel bonding occurs.Martensitic stucture wear resisting steel and antifriction cast iron at room temperature have good wear resistance, but along with the raising of use temperature, martensite generation tempering, wear resistance can reduce.Wimet deflector roll has good wear resistance and high-temperature stability, and its impelling strength is poor.
The precision casting shell that current use is more, is broadly divided into: graphite shell, tungsten surface layer ceramic shell, New Oxide Ceramic Shell Mould etc.But due to the deficiency of mould generation type and the parameter designing of castingprocesses unreasonable, cause shaping after piece surface and subsurface defect all many.
Summary of the invention
An object of the present invention is to propose a kind of deflector roll;
Two of object of the present invention is the manufacture method proposing a kind of deflector roll;
For reaching this object, the present invention by the following technical solutions:
A kind of deflector roll, described deflector roll is iron-base superalloy, represents with weight percentage, consisting of of this iron-base superalloy: C:2.3 ~ 3.2%, Si:0.6 ~ 1.5%, Cr:29 ~ 35%, V:1.5 ~ 2.2%, Mo:0.2 ~ 1.6%, Ni:7.0 ~ 8.8%, Ti:0.7 ~ 1.5%, Nb:0.2 ~ 0.6%, V:0.82 ~ 1.2%, Ta:0.002 ~ 0.006%, rare earth: 0.18 ~ 0.28%, surplus is Fe and inevitable impurity;
Described deflector roll adopts the mode of precision casting to prepare;
The cross-section of 1 ~ 2mm below the surface of this iron-base superalloy deflector roll, its Ni
3(Ti, Al, Nb) phase area occupied ratio is 1.2 ~ 2.6% of total cross sectional area, at the center cross-sectional place of this iron-base superalloy deflector roll, and its Ni
3(Ti, Al, Nb) shared mutually area is 5.2 ~ 7.8% of the total area.
As preferably, the cross-section of 1mm below the surface of this iron-base superalloy deflector roll, its Ni
3(Ti, Al) phase area occupied ratio is 1.8 ~ 2.1% of the total area, at the center cross-sectional place of this iron-base superalloy deflector roll, and its Ni
3(Ti, Al) phase area occupied ratio is 5.8 ~ 6.4% of the total area.
A manufacture method for deflector roll, comprises the following steps:
1) precision casting, according to the chemical constitution preparation iron-based high-temperature alloy material of foregoing iron-base superalloy, adopt water-soluble core, existing system design is adopted to obtain model, adopt rapidform machine, existing laser sintered end is adopted successively to sinter polystyrene powder, more obtained fusible pattern after waxdip, then surface and inner cleaning are carried out to fusible pattern; Be immersed in by fusible pattern in investment precoat after being stained with slurry and take out, then carrying out the stucco of surface layer, drying, obtain formwork, formwork is put into process furnace, is 1080 ~ 1180 DEG C in temperature, insulation 2.5 ~ 3h, and then furnace cooling is to room temperature, obtains mould; Pour in model shell after the iron-based high-temperature alloy material of preparation is smelted into liquid state and pour into a mould, teeming temperature is 1620 ~ 1650 DEG C, after cast, the deflector roll that precision casting becomes is naturally cooled to room temperature, then removes gating system, obtain deflector roll;
2) carry out hot isostatic pressing to the deflector roll obtained, temperature is for being 1130 ~ 1165 DEG C, and pressure is 160 ~ 200MPa, and the dwell time is 3 ~ 6 hours.
3) anneal: the deflector roll obtained after hot isostatic pressing is heated to 865 ~ 885 DEG C of insulation 2 ~ 4h, then cool the temperature to 600 ~ 680 DEG C of insulation 1 ~ 1.8h, then be down to 580 ~ 595 DEG C and come out of the stove, after coming out of the stove, naturally cool to room temperature;
4) precision work: the deflector roll inserted tool after anneal is finish-machined to finished product deflector roll.
As preferably, also carry out Quench and temper thermal treatment after anneal with before precision work, described quenching is: deflector roll is heated to 980 ~ 1020 DEG C of insulation 1 ~ 2h, then comes out of the stove with oil quenching; Described tempering is: the deflector roll after quenching is heated to 245 ~ 298 DEG C of insulation 2 ~ 3h, air cooling of then coming out of the stove is to room temperature.
As preferably, the proportioning that described investment precoat is zirconium white, two acetic acid zirconiums, fatty alcohol-polyoxyethylene ether and propyl carbinol according to weight ratio are 4.5 ~ 5.2:1:0.0012 ~ 0.0018:0.0006 ~ 0.0012 obtains by stirring, leaving standstill.
As preferably, the heating steps of described annealing is first heated to 380 ~ 420 DEG C, insulation 0.8 ~ 1.5h, and then is heated to 865 ~ 885 DEG C.
effect of the present invention is:
By choosing of specific precision casting and annealing temperature, make Ni
3(Ti, Al, Nb) phase and Ni
3the strengthening phase of (Ti, Al) phase is reasonably distributed in guide roller surface and inside, thus deflector roll intensity and wearing quality are greatly improved;
By improving carbon content, the intensity of deflector roll and hardness are greatly enhanced, but make toughness also meet the performance requriements of deflector roll owing to being rationally provided with thermal treatment temp with the proportioning (as Ta, Ni, Nb etc.) of other elements.
Embodiment
embodiment 1
A kind of deflector roll, it is characterized in that, described deflector roll is iron-base superalloy, represent with weight percentage, consisting of of this iron-base superalloy: C:2.8%, Si:0.95%, Cr:32%, V:1.92%, V:0.88%, Mo:0.86%, Ni:7.98%, Ti:0.95%, Nb:0.56%, Ta:0.0046%, rare earth: 0.19%, surplus is Fe and inevitable impurity;
Described deflector roll adopts the mode of precision casting to prepare;
The cross-section of 1.5mm below the surface of this iron-base superalloy deflector roll, its Ni
3(Ti, Al, Nb) phase area occupied ratio is 1.8% of total cross sectional area, at the center cross-sectional place of this iron-base superalloy deflector roll, and its Ni
3(Ti, Al, Nb) shared mutually area is 5. 8% of the total area; The cross-section of 1mm below the surface of this iron-base superalloy deflector roll, its Ni
3(Ti, Al) phase area occupied ratio is 1.88% of the total area, at the center cross-sectional place of this iron-base superalloy deflector roll, and its Ni
3(Ti, Al) phase area occupied ratio is 5.98% of the total area.
embodiment 2:
A kind of deflector roll, described deflector roll is iron-base superalloy, represents with weight percentage, consisting of of this iron-base superalloy: C:2.92%, Si:0.85%, Cr:32.5%, V:1.982%, V:1.12%, Mo:1.52%, Ni:7.98%, Ti:1.28%, Nb:0.56%, Ta:0.0055%, rare earth: 0.25%, surplus is Fe and inevitable impurity;
Described deflector roll adopts the mode of precision casting to prepare;
The cross-section of 1mm below the surface of this iron-base superalloy deflector roll, its Ni
3(Ti, Al, Nb) phase area occupied ratio is 2.1% of total cross sectional area, at the center cross-sectional place of this iron-base superalloy deflector roll, and its Ni
3(Ti, Al, Nb) shared mutually area is 6.8% of the total area; The cross-section of 1mm below the surface of this iron-base superalloy deflector roll, its Ni
3(Ti, Al) phase area occupied ratio is 1.92% of the total area, at the center cross-sectional place of this iron-base superalloy deflector roll, and its Ni
3(Ti, Al) phase area occupied ratio is 5.88% of the total area.
embodiment 3:
The manufacture method of deflector roll, comprises the following steps:
1) precision casting, according to the chemical constitution preparation iron-based high-temperature alloy material of the iron-base superalloy described in embodiment 1, adopt water-soluble core, existing system design is adopted to obtain model, adopt rapidform machine, existing laser sintered end is adopted successively to sinter polystyrene powder, more obtained fusible pattern after waxdip, then surface and inner cleaning are carried out to fusible pattern; Fusible pattern is immersed in investment precoat be stained with slurry after take out, described investment precoat is zirconium white, two acetic acid zirconiums, fatty alcohol-polyoxyethylene ether and propyl carbinol according to weight ratio be 4.9:1:0.0016:0.0008 proportioning by stir, leave standstill obtain; Then carrying out stucco, the drying of surface layer, obtain formwork, formwork is put into process furnace, is 1098 DEG C in temperature, insulation 2.8h, and then furnace cooling is to room temperature, obtains mould; Pour in model shell after the iron-based high-temperature alloy material of preparation is smelted into liquid state and pour into a mould, teeming temperature is 1640 DEG C, after cast, the deflector roll that precision casting becomes is naturally cooled to room temperature, then removes gating system, obtain deflector roll;
2) carry out hot isostatic pressing to the deflector roll obtained, temperature is for being 1155 DEG C, and pressure is 180MPa, and the dwell time is 5 hours.
3) anneal: the deflector roll obtained after hot isostatic pressing is first heated to 390 DEG C, insulation 1.2h, and then be heated to 875 DEG C of insulation 3h, then cool the temperature to 660 DEG C of insulation 1.6h, then be down to 588 DEG C and come out of the stove, after coming out of the stove, naturally cool to room temperature;
3.1) Quench and temper thermal treatment, described quenching is: deflector roll is heated to 990 DEG C of insulation 1.5h, then comes out of the stove with oil quenching; Described tempering is: the deflector roll after quenching is heated to 288 DEG C of insulation 2.8h, air cooling of then coming out of the stove is to room temperature;
4) precision work: the deflector roll inserted tool after anneal is finish-machined to finished product deflector roll.
Claims (6)
1. a deflector roll, is characterized in that, described deflector roll is iron-base superalloy, represent with weight percentage, consisting of of this iron-base superalloy: C:2.3 ~ 3.2%, Si:0.6 ~ 1.5%, Cr:29 ~ 35%, V:1.5 ~ 2.2%, V:0.82 ~ 1.2%, Mo:0.2 ~ 1.6%, Ni:7.0 ~ 8.8%, Ti:0.7 ~ 1.5%, Nb:0.2 ~ 0.6%, Ta:0.002 ~ 0.006%, rare earth: 0.18 ~ 0.28%, surplus is Fe and inevitable impurity;
Described deflector roll adopts the mode of precision casting to prepare;
The cross-section of 1 ~ 2mm below the surface of this iron-base superalloy deflector roll, its Ni
3(Ti, Al, Nb) phase area occupied ratio is 1.2 ~ 2.6% of total cross sectional area, at the center cross-sectional place of this iron-base superalloy deflector roll, and its Ni
3(Ti, Al, Nb) shared mutually area is 5.2 ~ 7.8% of the total area.
2. deflector roll according to claim 1, is characterized in that, the cross-section of 1mm below the surface of this iron-base superalloy deflector roll, its Ni
3(Ti, Al) phase area occupied ratio is 1.8 ~ 2.1% of the total area, at the center cross-sectional place of this iron-base superalloy deflector roll, and its Ni
3(Ti, Al) phase area occupied ratio is 5.8 ~ 6.4% of the total area.
3. a manufacture method for deflector roll described in claim 1, is characterized in that, comprises the following steps:
1) precision casting, according to the chemical constitution preparation iron-based high-temperature alloy material of the iron-base superalloy described in claim 1 or 2, adopt water-soluble core, existing system design is adopted to obtain model, adopt rapidform machine, existing laser sintered end is adopted successively to sinter polystyrene powder, more obtained fusible pattern after waxdip, then surface and inner cleaning are carried out to fusible pattern; Be immersed in by fusible pattern in investment precoat after being stained with slurry and take out, then carrying out the stucco of surface layer, drying, obtain formwork, formwork is put into process furnace, is 1080 ~ 1180 DEG C in temperature, insulation 2.5 ~ 3h, and then furnace cooling is to room temperature, obtains mould; Pour in model shell after the iron-based high-temperature alloy material of preparation is smelted into liquid state and pour into a mould, teeming temperature is 1620 ~ 1650 DEG C, after cast, the deflector roll that precision casting becomes is naturally cooled to room temperature, then removes gating system, obtain deflector roll;
2) carry out hot isostatic pressing to the deflector roll obtained, temperature is 1130 ~ 1165 DEG C, and pressure is 160 ~ 200MPa, and the dwell time is 3 ~ 6 hours;
3) anneal: the deflector roll obtained after hot isostatic pressing is heated to 865 ~ 885 DEG C of insulation 2 ~ 4h, then cool the temperature to 600 ~ 680 DEG C of insulation 1 ~ 1.8h, then be down to 580 ~ 595 DEG C and come out of the stove, after coming out of the stove, naturally cool to room temperature;
4) precision work: the deflector roll inserted tool after anneal is finish-machined to finished product deflector roll.
4. manufacture method according to claim 3, is characterized in that, also carry out Quench and temper thermal treatment after anneal with before precision work, described quenching is: deflector roll is heated to 980 ~ 1020 DEG C of insulation 1 ~ 2h, then comes out of the stove with oil quenching; Described tempering is: the deflector roll after quenching is heated to 245 ~ 298 DEG C of insulation 2 ~ 3h, air cooling of then coming out of the stove is to room temperature.
5. the manufacture method according to claim 3 or 4, it is characterized in that, described investment precoat is zirconium white, two acetic acid zirconiums, fatty alcohol-polyoxyethylene ether and propyl carbinol according to weight ratio be 4.5 ~ 5.2:1:0.0012 ~ 0.0018:0.0006 ~ 0.0012 proportioning by stir, leave standstill obtain.
6. the manufacture method according to claim 3 or 5, is characterized in that, the heating steps of described annealing is first heated to 380 ~ 420 DEG C, insulation 0.8 ~ 1.5h, and then is heated to 865 ~ 885 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310490729.7A CN103526127B (en) | 2013-10-20 | 2013-10-20 | A kind of deflector roll and manufacture method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310490729.7A CN103526127B (en) | 2013-10-20 | 2013-10-20 | A kind of deflector roll and manufacture method thereof |
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| CN103526127A CN103526127A (en) | 2014-01-22 |
| CN103526127B true CN103526127B (en) | 2015-10-14 |
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| CN109079432B (en) * | 2018-07-27 | 2021-05-21 | 杭州圣久机械有限公司 | Production process of anti-deformation guide roller |
| CN111958191A (en) * | 2020-09-02 | 2020-11-20 | 瑞安市创博机械有限公司 | Processing production process of hot-expanding type aluminum guide roller |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1636075A (en) * | 2002-01-09 | 2005-07-06 | 罗曼·拉顿 | High chromium-nitrogen bearing castable alloy |
| CN101811379A (en) * | 2010-05-07 | 2010-08-25 | 山东大学 | Rubber-coating roll with composite rubber-coating layer and method for preparing same |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1636075A (en) * | 2002-01-09 | 2005-07-06 | 罗曼·拉顿 | High chromium-nitrogen bearing castable alloy |
| CN101811379A (en) * | 2010-05-07 | 2010-08-25 | 山东大学 | Rubber-coating roll with composite rubber-coating layer and method for preparing same |
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Address after: The 2 group of Zhou Zhen Yongan Yongfu village in Taizhou District of Gaogang Jiangsu province 225327 Patentee after: Gu Xiangmao Address before: 266000 Licang, Qingdao, No. nine East water road, No. 320, No. Patentee before: Gu Xiangmao |
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Effective date of registration: 20170629 Address after: 528000 Guangdong province Gaoming District of Foshan city town of Gaoming Yang Road No. 126 building Patentee after: FOSHAN DEYI SHENGYE ROLLER PRODUCING CO.,LTD. Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20170629 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: The 2 group of Zhou Zhen Yongan Yongfu village in Taizhou District of Gaogang Jiangsu province 225327 Patentee before: Gu Xiangmao |