CN103008617B - Method for preparing high-speed steel composite roll for hot rolling - Google Patents
Method for preparing high-speed steel composite roll for hot rolling Download PDFInfo
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- CN103008617B CN103008617B CN201210577206.1A CN201210577206A CN103008617B CN 103008617 B CN103008617 B CN 103008617B CN 201210577206 A CN201210577206 A CN 201210577206A CN 103008617 B CN103008617 B CN 103008617B
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- 229910000997 High-speed steel Inorganic materials 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000005098 hot rolling Methods 0.000 title claims abstract description 32
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 238000005266 casting Methods 0.000 claims abstract description 23
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 14
- 229910001141 Ductile iron Inorganic materials 0.000 claims abstract description 14
- 239000010962 carbon steel Substances 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 238000007670 refining Methods 0.000 claims abstract description 9
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 8
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 8
- 238000010891 electric arc Methods 0.000 claims abstract description 7
- 239000004576 sand Substances 0.000 claims description 31
- 150000001875 compounds Chemical class 0.000 claims description 27
- 238000002360 preparation method Methods 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 12
- 239000002893 slag Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000010791 quenching Methods 0.000 claims description 5
- 230000000171 quenching effect Effects 0.000 claims description 5
- 230000008929 regeneration Effects 0.000 claims description 5
- 238000011069 regeneration method Methods 0.000 claims description 5
- 238000000137 annealing Methods 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 4
- 230000004927 fusion Effects 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 230000004224 protection Effects 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000003723 Smelting Methods 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 239000011162 core material Substances 0.000 abstract description 17
- 230000009977 dual effect Effects 0.000 abstract 1
- 238000005272 metallurgy Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000010410 layer Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 208000037656 Respiratory Sounds Diseases 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 238000005275 alloying Methods 0.000 description 2
- 238000009750 centrifugal casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 208000025599 Heat Stress disease Diseases 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- -1 batching Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010583 slow cooling 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
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
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Abstract
一种高速钢复合热轧轧辊的制备方法，其特征在于，所述方法采用电渣空心抽锭方法先制作再生高速钢复合轧辊辊环，利用中频炉或电弧炉将成本低的球墨铸铁或普碳钢熔化，以浇铸方式制造轧辊辊芯，同时将轧辊外环与轧辊辊芯浇铸熔合在一起，从而制备工作辊环为高速钢，芯材为球墨铸铁或普碳钢的复合的热轧轧辊。本发明方法所制备的高速钢复合轧辊特点是外层厚度均匀；组织细小致密；芯部材料的采用球墨铸铁或普碳钢。在轧辊辊环制作中利用稀土处理与电渣精炼的双重作用全面提高轧辊工作面质量，使用寿命长；辊身及辊芯采用的是球墨铸铁或普碳钢综合成本低。本发明适用于高速钢复合热轧轧辊的制造生产，能够在冶金、再生资源行业广泛应用。
A method for preparing a high-speed steel composite hot-rolling roll, characterized in that, the method adopts the electroslag hollow ingot drawing method to first produce a regenerated high-speed steel composite roll ring, and uses an intermediate frequency furnace or an electric arc furnace to convert low-cost nodular cast iron or common Carbon steel is melted, and the roll core is manufactured by casting. At the same time, the outer ring of the roll and the roll core are cast and fused together to prepare a composite hot-rolled roll whose working roll ring is high-speed steel and the core material is nodular cast iron or ordinary carbon steel. . The high-speed steel composite roll prepared by the method of the invention is characterized in that the thickness of the outer layer is uniform; In the production of roll rings, the dual effects of rare earth treatment and electroslag refining are used to comprehensively improve the quality of the working surface of the roll, and the service life is long; the roll body and roll core are made of ductile iron or ordinary carbon steel with low overall cost. The invention is applicable to the manufacture and production of high-speed steel composite hot rolling rolls, and can be widely used in metallurgy and renewable resource industries.
Description
technical field
The present invention relates to the preparation method of the compound roll for hot-rolling of a kind of high-speed steel, belong to metal material technical field.
background technology
The trend of the roll material development of recent researches is to be widely used alloying element and to improve gradually alloying level, and roll barrel surface forms more harder carbide, improves the wearability of roll.High-speed steel is used to the manufacture of roll because having hardness is high, red hardness good and wearability is good feature.Manufacture the method that compound high speed steel roll mainly contains forging and centrifugal casting.Adopt forging method, in forging process, be prone to crackle, forge high-speed steel roll and also have the deficiencies such as lumber recovery is low, energy consumption is high and processing capacity is large, technological process is long.Adopting centre spinning method to manufacture high-speed steel roll subject matter is WC, VC segregation and crackle, in addition when molten steel falls to flowing the casting mold of impact high speed rotation, likely make the dope layer cracking of mo(U)ld face even peel off, coating after peeling off enters roll inside with molten steel, when coating cracking, molten steel pierces crackle surface coating material is clipped in the middle, and causes roll to occur that top layer is mingled with.
summary of the invention
The object of the invention is, manufacture according to conventional method (as forged and centre spinning method) problem that compound high speed steel roll exists, the present invention discloses the preparation method of the compound roll for hot-rolling of a kind of high-speed steel.
Technical scheme of the present invention is, the present invention adopts the hollow stripping method of electroslag first to make regeneration compound high speed steel roll collars, utilize intermediate frequency furnace or electric arc furnaces by spheroidal graphite cast-iron low cost or straight carbon steel fusing, manufacture roll roller core in casting mode, roll outer shroud and the casting of roll roller core are fused together simultaneously, thereby preparation work collars is high-speed steel, core is the compound roll for hot-rolling of spheroidal graphite cast-iron or straight carbon steel.
Rare earth regeneration compound high speed steel roll of the present invention is to prepare by following steps:
1, high-speed steel consutrode preparation: adopting useless high-speed steel is raw material, requires to add alloy material according to chemical composition, adds rare earth alterative 0.1-0.5%, utilizes electric furnace smelting method, burns casting and obtains high-speed steel consutrode;
2, continuous stripping fusion cast process: slag charge is through being heated to 150 DEG C-300 DEG C insulations approximately 2 hours, the gas disposal that dewaters, changes changing in slag hearth, melts electroslag material and pours in hollow stripping crystallizer, high-speed steel consutrode is inserted to slag bath and carry out conventional electroslag refining, feeding, end.Meanwhile, the suitable for reading and end opening of crystallizer is carried out to gas shield to melting and finish, obtain high-speed steel roll for hot-rolling building ring;
3, insulation is processed: by the high-speed steel work hot rolling collar of stripping founding, utilize more than 600 DEG C hot sand to carry out covering protection, until cool to room temperature;
4, casting compound thermal roll: high-speed steel work hot rolling collar is combined with the shell of casting sand mold, carries out sand mold joint treatment with fire clay, it is 600 DEG C that breaker roll ring carries out the pre-heat treatment temperature, collar and sand mold are filled out 500 DEG C of hot sand protections around; Utilize intermediate frequency furnace or electric arc furnaces, burned sand mold after spheroidal graphite cast-iron or straight carbon steel are melted through deoxidation, skimmed completes after feeding;
5, insulation shaping: composite roll blank adopts 500 DEG C of hot sand landfills, removes cast gate, rising head after cooling;
6, heat treatment and processing: the annealing process of composite roll blank is for being heated to 950 DEG C and be incubated 3 hours, and stove is chilled to 600 DEG C, the air cooling of coming out of the stove.After annealing, carry out roughing.After roughing, rolling face carries out high-frequency quenching processing, then refines moulding, completes the making of the compound roll for hot-rolling of high-speed steel.
The invention has the beneficial effects as follows, the inventive method obtains high-speed steel hot roll working lining by RE-treated and electroslag refining double action, has eliminated netted and large massive carbide; Reduce gas and the impurity content in material, improve material cold-heat fatigue behaviour, reduce the hot cracking tendency of material, working lining case hardness is even, compared with the compound roll for hot-rolling of centrifugal casting quick-cutting steel, have roll workspace quality high, core is combined the feature such as firm with working lining, and be that the roll prepared of common centre spinning method is more than 2 times service life.
The prepared compound high speed steel roll feature of the inventive method is that outer layer thickness is even; Fine microstructures densification; Employing spheroidal graphite cast-iron or the straight carbon steel of core material.In making, roll collars utilize the double action of RE-treated and electroslag refining to improve rolling face quality, long service life comprehensively; What the body of roll and roller core adopted is that spheroidal graphite cast-iron or straight carbon steel integrated cost are low.
Preparation method of the present invention has advantages of that material property is stable, lumber recovery is high, integrated cost is low.
The present invention is applicable to the manufacture of the compound roll for hot-rolling of high-speed steel and produces, can be in metallurgical, recycle business extensive use.
brief description of the drawings
Fig. 1 is process chart of the present invention;
Fig. 2 is the schematic diagram of preparing of high-speed steel work collars of the present invention;
Fig. 3 is that work collars of the present invention is connected compound schematic diagram with roller core;
Picture in picture number is: the 1st, and interior crystallizer; The 2nd, high-speed steel consutrode; The 3rd, outer crystallizer; The 4th, the electroslag of fusing; The 5th, the rolling face layer collar; The 6th, interior crystallizer water inlet; The 7th, interior crystallizer water outlet; The 8th, outer crystallizer water inlet; The 9th, outer crystallizer water outlet; The 11st, water Casting Roller core; The 12nd, rolling face layer; The 13rd, sand mold.
Detailed description of the invention
The specific embodiment of the invention is as shown in Fig. 1 process chart.
Concrete point two steps of implementing, the one, utilize electroslag stripping method to prepare the high-speed steel loop type material of the working lining of roll for hot-rolling, as the working surface layers of roll for hot-rolling, the preparation of the invention process high-speed steel work collars as shown in Figure 2, the rolling face layer collar 5 forms between interior crystallizer 1 and outer crystallizer 3, the 2nd, high-speed steel consutrode, the 4th, the electroslag of fusing, the 6th, interior crystallizer water inlet; The 7th, interior crystallizer water outlet, ensures the cooling of interior crystallizer; The 8th, outer crystallizer water inlet; The 9th, outer crystallizer water outlet, ensures the cooling of outer crystallizer.
The invention process work collars is connected as shown in Figure 3 compound with roller core.Using roll for hot-rolling working face as overcoat, utilize intermediate frequency furnace or electric arc furnaces by roller core after spheroidal graphite cast-iron or straight carbon steel fusing casting and work ring set casting fusion moulding, wherein 11 is to water Casting Roller core; The 12nd, rolling face layer; The 13rd, sand mold.
Concrete implementation step: first, it is the preparation of the working surface layers of roll for hot-rolling, owing to containing more tungsten in high-speed steel, chromium, molybdenum, the elements such as vanadium, the carbide density contrast of these elements and formation thereof is very large, utilize the method for rare earth alterative processing and electroslag refining, in comsumable melt process, utilize the double action of RE Modified and wash heat refining, can eliminate net carbide and the carbide segregation of regeneration high speed steel roll collar, non-metallic inclusion and harmful element in steel are removed in a large number, can obtain fine and close tissue simultaneously, avoid the loose segregation defect producing in common metallurgical process, thereby reach the metallurgical quality of working surface layers of roll for hot-rolling and the lumber recovery of the working face aspect of roll for hot-rolling that improve high-speed steel.
Secondly, the collars of the roll for hot-rolling of making is carried out to the pre-heat treatment as the work overcoat of casting, engage with sand mold shell at collars two ends, form roller core and roll neck cavity, the spheroidal graphite cast-iron having melted or straight carbon steel are poured in cavity and cast roller core and roll neck, burning has been cast rear slow cooling, completing blank makes, modifier treatment processing, reaches rolling face hardness requirement through high-frequency quenching processing, completes manufacture after fine grinding.
Embodiment 1
(1) working lining consutrode preparation: by the requirement of high-speed steel chemical composition, batching, intermediate frequency furnace is smelted, and adds rare earth alterative 0.5%, and cast obtains high-speed steel consutrode;
(2) the outer ring forming of working lining: carry out according to electroslag remelting process, slag charge is through being heated to 250 DEG C of insulations 2 hours, gas disposal dewaters, in change slag hearth, change, fusing electroslag material pours in hollow stripping crystallizer, high-speed steel consutrode is inserted to slag bath and carry out conventional electroslag refining, feeding, end.Meanwhile, the suitable for reading and end opening of crystallizer is carried out to gas shield to melting and finish, obtain high-speed steel roll for hot-rolling building ring, moulding completes, and adopts 600 DEG C of hot sand covering and heat insulatings;
(3) moulding connects: high-speed steel work hot rolling collar is combined with the shell of casting sand mold, carries out sand mold joint treatment with fire clay, heating work roll for hot-rolling ring and sand mold, fill out 500 DEG C of hot sand around.
(5) composite molding: utilize intermediate frequency furnace, by spheroidal graphite cast-iron casting fusing, deoxidation, skim after, pour into sand mold, complete after feeding, after casting.
(6) insulation shaping: fill out hot sand insulation 4.5 hours, remove to burn mouth, rising head.
(7) heat treatment process: through 940 DEG C of insulations 3.5 hours, stove was chilled to 600 DEG C and comes out of the stove to room temperature.Roughing.High-frequency quenching is processed roll building ring shell, and cooling rear fine grinding completes making.
Finally complete the making of the compound roll for hot-rolling of high-speed steel.
Working lining Hardness of High Speed Steel: HRC62-66
Working lining carbide rank: be less than 3 grades
Embodiment 2
(1) working lining consutrode preparation: by the requirement of high-speed steel chemical composition, batching, adds rare earth alterative 0.3%, intermediate frequency furnace is smelted and is obtained high-speed steel consutrode;
(2) the outer ring forming of working lining: carry out according to electroslag remelting process, slag charge through being heated to 250 DEG C 2 hours, gas disposal dewaters, in change slag hearth, change, fusing electroslag material pours in hollow stripping crystallizer, high-speed steel consutrode is inserted to slag bath and carry out conventional electroslag refining, feeding, end.Meanwhile, the suitable for reading and end opening of crystallizer is carried out to gas shield to melting and finish, obtain high-speed steel roll for hot-rolling building ring, moulding completes, and adopts 600 DEG C of hot sand covering and heat insulatings;
(3) moulding connects: high-speed steel work hot rolling collar is combined with the shell of casting sand mold, carries out sand mold joint treatment with fire clay, heating work roll for hot-rolling ring and sand mold, fill out 500 DEG C, hot sand around.
(5) composite molding: utilize electric arc furnaces, by straight carbon steel casting fusing, deoxidation, skim after, pour into sand mold, complete after feeding, after casting.
(6) insulation shaping: fill out hot sand insulation 4.5 hours, remove to burn mouth, rising head.
(7) heat treatment process: through 780 DEG C of insulations 3.4 hours, stove was chilled to 630 DEG C and comes out of the stove to room temperature.Roughing.High-frequency quenching is processed roll building ring shell, and cooling rear fine grinding completes making.
Finally complete the making of the compound roll for hot-rolling of high-speed steel.
Working lining Hardness of High Speed Steel: HRC62-66;
Working lining carbide rank: be less than 3 grades.
Claims (2)
1. the preparation method of the compound roll for hot-rolling of high-speed steel, it is characterized in that, described method adopts the hollow stripping method of electroslag first to make regeneration compound high speed steel roll collars, then utilize intermediate frequency furnace or electric arc furnaces by spheroidal graphite cast-iron low cost or straight carbon steel fusing, manufacture roll roller core in casting mode, roll outer shroud and the casting of roll roller core are fused together, thereby preparation work collars is high-speed steel, core is the compound roll for hot-rolling of spheroidal graphite cast-iron or straight carbon steel simultaneously;
Rare earth regeneration compound high speed steel roll is to prepare by following steps:
(1) high-speed steel consutrode preparation: adopting useless high-speed steel is raw material, requires to add alloy material according to chemical composition, adds rare earth alterative 0.01-0.05%, utilizes electric furnace smelting method, and casting obtains high-speed steel consutrode;
(2) continuous stripping fusion cast process: slag charge is through being heated to 150 DEG C-300 DEG C, being incubated approximately 2 hours, gas disposal dewaters, in change slag hearth, change, fusing electroslag material pours in hollow stripping crystallizer, high-speed steel consutrode is inserted to slag bath and carry out conventional electroslag refining, feeding, end;
(3) insulation is processed: by the compound high speed steel roll collars of stripping founding, utilize more than 600 DEG C hot sand to carry out covering protection, until cool to room temperature;
(4) casting compound thermal roll: compound high speed steel roll collars is combined with the shell of casting sand mold, carries out sand mold joint treatment with fire clay, it is 600 DEG C that breaker roll ring carries out the pre-heat treatment temperature, collar and sand mold are filled out 500 DEG C of hot sand protections around; Utilize intermediate frequency furnace or electric arc furnaces, after spheroidal graphite cast-iron or straight carbon steel are melted through deoxidation, skimmed, pour into sand mold, after feeding, complete;
(5) insulation shaping: composite roll blank adopts 500 DEG C of hot sand landfills, removes cast gate, rising head after cooling;
(6) heat treatment and processing: the annealing process of composite roll blank is for being heated to 950 DEG C and be incubated more than 3 hours, and stove is chilled to 600 DEG C, the air cooling of coming out of the stove; After annealing, carry out roughing; After roughing, rolling face carries out high-frequency quenching processing, then refines moulding, completes the making of the compound roll for hot-rolling of high-speed steel.
2. the preparation method of the compound roll for hot-rolling of a kind of high-speed steel according to claim 1; it is characterized in that; described continuous stripping fusion cast process step, carries out gas shield to melting to the suitable for reading and end opening of crystallizer simultaneously and finishes, and obtains compound high speed steel roll collars.
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| CN201210577206.1A CN103008617B (en) | 2012-12-27 | 2012-12-27 | Method for preparing high-speed steel composite roll for hot rolling |
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| CN106048400B (en) * | 2016-02-23 | 2018-02-16 | 江苏盈科汽车空调有限公司 | A kind of spheroidal graphite cast-iron for compressor of air conditioner cylinder body and preparation method thereof |
| CN106140819B (en) * | 2016-08-31 | 2018-08-14 | 唐山亿联盛轧辊有限公司 | A kind of production method of compound high speed steel roll |
| CN109513902A (en) * | 2018-11-28 | 2019-03-26 | 湖南四昉新材料有限公司 | A kind of processing method, processing unit (plant) and the bimetal roller set of bimetal roller set |
| CN113118419B (en) * | 2021-04-14 | 2022-07-29 | 朱龙华 | Process for manufacturing gradient composite layer metal roller by electroslag remelting compounding (re) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5586671A (en) * | 1978-12-26 | 1980-06-30 | Kubota Ltd | Production of composite roll |
| US4411713A (en) * | 1979-07-12 | 1983-10-25 | Wean United, Inc. | Shell for a composite roll |
| JPH07126795A (en) * | 1993-11-05 | 1995-05-16 | Yodogawa Steel Works Ltd | Work roll for hot rolling |
| CN1129617A (en) * | 1995-12-12 | 1996-08-28 | 冶金工业部钢铁研究总院 | Manufacture of composite milling roller |
| CN1339342A (en) * | 2001-08-31 | 2002-03-13 | 李宗祥 | Method for producing high speed steel roll ring |
| CN101041165A (en) * | 2007-04-03 | 2007-09-26 | 西安交通大学 | Low-aliquation high-speed steel roll and the preparing method |
| CN102069174A (en) * | 2009-11-24 | 2011-05-25 | 铜陵市大明玛钢有限责任公司 | Method for producing centrifugal electroslag smelting and casting double-base composite roller |
-
2012
- 2012-12-27 CN CN201210577206.1A patent/CN103008617B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5586671A (en) * | 1978-12-26 | 1980-06-30 | Kubota Ltd | Production of composite roll |
| US4411713A (en) * | 1979-07-12 | 1983-10-25 | Wean United, Inc. | Shell for a composite roll |
| JPH07126795A (en) * | 1993-11-05 | 1995-05-16 | Yodogawa Steel Works Ltd | Work roll for hot rolling |
| CN1129617A (en) * | 1995-12-12 | 1996-08-28 | 冶金工业部钢铁研究总院 | Manufacture of composite milling roller |
| CN1339342A (en) * | 2001-08-31 | 2002-03-13 | 李宗祥 | Method for producing high speed steel roll ring |
| CN101041165A (en) * | 2007-04-03 | 2007-09-26 | 西安交通大学 | Low-aliquation high-speed steel roll and the preparing method |
| CN102069174A (en) * | 2009-11-24 | 2011-05-25 | 铜陵市大明玛钢有限责任公司 | Method for producing centrifugal electroslag smelting and casting double-base composite roller |
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| CN103008617A (en) | 2013-04-03 |
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