CN1382537A - High-power composite roller for rolling steel - Google Patents
High-power composite roller for rolling steel Download PDFInfo
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- CN1382537A CN1382537A CN 02102963 CN02102963A CN1382537A CN 1382537 A CN1382537 A CN 1382537A CN 02102963 CN02102963 CN 02102963 CN 02102963 A CN02102963 A CN 02102963A CN 1382537 A CN1382537 A CN 1382537A
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Abstract
A high-power composite steel roller of rolling plate or band is composed of the roller core made of forged steel and cylindrical steel combined on the surface of roller core by explosion welding. The said cylindrical steel is made up through electroslag casting or centrifugal casting and has high rolling performance.
Description
High-power composite roller for rolling steel is a kind of template steel roll, belongs to the metallurgical machinery equipment part.
The manufacturing of high-power composite roller for rolling steel relates to casting, explosive welding, heat treatment and Machining Technology.Its related foundry engieering is electroslag smelting casting and centrifugal casting technique, and they are used for making roller surface steel composite bed, i.e. cylindrical shape steel composite bed in the manufacturing of high-power composite roller for rolling steel.This steel composite bed is in roll barrel and neck surface.The electroslag smelting casting technology is a kind of senior smelting technique that is applied to each industrial department.It combines metal and the cast irregular part that obtains high metallurgical quality and the bad strong point of hair of refining, and has no anisotropic characteristics and compact tissue, favorable mechanical and the mechanical property close with forging.But the cost of electroslag smelting casting product is higher, is mainly used in the higher part of performance requirement, and about the situation of electroslag smelting casting, the home and abroad all has a large amount of papers and works to be discussed, as " electroslag smelting casting " that Li Zhengbang showed etc.
Centrifugal casting is a kind of foundry engieering commonly used, is mainly used in the production revolving parts, compares with electroslag smelting casting, and degree of purity is low, and element segregation is bigger.
It is a kind of Solid-phase welding that high-power composite roller for rolling steel is made involved explosive welding, and from the nineteen forty-four generation, till now, explosion welding technique has the history of decades, a large amount of commodity productions is all arranged at home, outward, and be widely applied to each industrial department.It is that cylindrical shape steel composite bed is welded on the body of roll or the roll neck in the manufacturing of high-power composite roller for rolling steel.Explosive welding has the bond strength height, and the description of materials combination range is wide, the advantage that cycling processability is good.But the simple material welding of its only suitable geometry, and noise is big, can only carry out at remote place, and the argumentation of relevant this technology and report all have lot of documents.As outstanding " explosive welding, shaping and the compacting " book of the TZ Bradley Qi Ensiji of Britain.
The technology of heat treatment that high-power composite roller for rolling steel is involved and machining aspect also all is a mature technology, because roll selects for use the material kind more, the Technology for Heating Processing of various materials has nothing in common with each other, but can search by instrument such as relevant workshop manual and file, but the roll material of new steel grade and technical matters need other approach to obtain.Utilize existing market resource to finish about Machining Technology, do not have big difference with general roll manufacturing technology.
The purpose of making high-power composite roller for rolling steel has two; 1) for the new system steel roll, be to improve serviceabilities such as its wearability, anti-strip, anti-accident ability, reduce cost simultaneously.2) to the steel roll reparation after the damaged surfaces, reuse again, repair the old and utilize scraps, reduce the steel production cost, also improve its serviceability purpose to reach.
The complex process of tradition forged steel roller, cost height, processing performance are poor.And hollow steel rolls and compound cast steel roller, its work layer on surface, promptly the surface hardening working lining is an as-cast structure, therefore its serviceability is very limited.No matter be the forged steel roller, or hollow steel rolls and compound cast steel roller, they all can not or difficult the reparation.Mainly requirement of strength for the roll roller core, roll breakage when preventing to use.For roller surface, then require high-wearing feature, higher anti-stripping performance, higher thermal shock and the ability of anti-accident.
High-power composite roller for rolling steel is the vital part that is used for purposes such as rolled metal sheet material, sheet metal strip, uses on milling train.From contour structures, high-power composite roller for rolling steel is a kind of template steel roll, is a kind of template composite roller for rolling steel.The same with the template steel roll, mainly form by the body of roll, roll neck, roller head three parts.The body of roll is the cylinder of diameter maximum in the roll each several part, and in the operation of rolling of steel, according to the position of roll in milling train, the body of roll will directly or indirectly act on steel.Roll neck is the cylinder position that rolling bearing is installed, and it respectively has a position on body of roll both sides, and it makes roll energy quick rotation when milling train is worked.Barrel portion outside the roll neck is exactly the roller head.
Structure is seen internally, and high-power composite roller for rolling steel is made up of roller core and surperficial steel composite bed, and the steel composite bed thickness can be greater than or less than the surface hardening layer thickness of roll drawing regulation.Also can equal quench hardened case thickness, the roller core of high-power composite roller for rolling steel is the approximate stairstepping forged steel pole of being made by the metal material of high-strength tenacity, it is the forged steel pole that the body of roll is big, roll neck is little, the surperficial steel composite bed of the body of roll part of high-power composite roller for rolling steel, it is cylindrical shape steel composite bed, be the round steel tube of making by electroslag smelting casting or centrifugal casting, and after distinctive technology is handled, be compounded on the body of roll by explosive welding.The roll neck part of high-power composite roller for rolling steel also explosibility is welded compound cylinder shaped steel composite bed.This cylinder shaped steel composite bed can meet or exceed the forging of steel of the same race in mechanics and mechanical properties, promptly surpasses the as-cast structure of steel of the same race in mechanics and mechanical properties.Under as-quenched, has very high wearability, very high antistrip performance, very high heat shock resistance and anti-accident ability.Aspect chemical analysis, adopt high-carbon alloy steel to make, as high chrome or high-speed steel etc.To guarantee the requirement of roller surface service behaviour.Its carbon content can detect by chemical method or physical method and learn.High-power composite roller for rolling steel product manufacture method; Core of the roll is for forging bar, surface cylinder shaped steel composite bed adopts electroslag smelting casting or centrifugal casting to form, handle corresponding to the technology of concrete steel grade and the requirement of roll serviceability through heat treatment, turning etc., through explosion welding technique it is welded on the body of roll or the roll neck again, certainly core of the roll is also handled through certain technology, reaches serviceability through Overheating Treatment and mechanical processing technique technical finesse subsequently.
In sum, high-power composite roller for rolling steel has very high obdurability, roll breakage when preventing to use, and this performance is to embody by roller core.High-power composite roller for rolling steel has very high wearability, very high antistrip performance, and very high heat shock resistance and anti-accident ability, this performance mainly are to embody by surperficial steel composite bed.
High-power composite roller for rolling steel and conventional steel roll, promptly forged steel roller, hollow steel rolls, compound cast steel roller are compared, and its combination property improves a lot, and cost reduces, and improve service life, and steel rolling quality improves.Compare as the forged steel roller, except performance improved a lot, cost also significantly reduced.Compare with the conventional composite hollow steel rolls, though the conventional composite hollow steel rolls also adopts the forged steel core, the multiple layer in its surface is an as-cast structure, so its performance is also low than high-power composite roller for rolling steel.The another one significant advantage, exactly can his-and-hers watches and steel roll after damaging repair, reach the effect of repairing the old and utilizing scraps.Particularly the reparation meaning of working roll is bigger.Because the maximum consumption of roll is a working roll.
The Figure of description file specification, in Fig. 1, diameter was 94mm when Dmax94 represented that the body of roll uses, Dmin86 represents that roll barrel may wear to 86mm through use and just can not use, and the body of roll is long to be 300mm, and 7 is a grade of finish, A---A is for dissecing symbol, Φ 47.3 expression carries out the transition to the roll neck end from body of roll end diameter is 47.3mm, and Φ 49.3 expression roll necks are 49.3mm, and 92 expressions are 92mm from body of roll end to roll neck other end length.22 expression transition portion length are 22mm, 484 for the high-power composite roller for rolling steel length overall be 484mm.In Fig. 2, index wire arrow indication part is the weld seam after the body of roll of cylindrical shape steel composite bed and roller core partly welds, the circular weld seam of zero expression, and J represents Contact welding, explosive welding (EW) is a Contact welding.The diameter of the body of roll is 86mm in the Φ 86 expression roller cores, more than each figure drawing ratio be 1: 5.
Embodiment in August, 1,2000, I sign the high-power composite roller for rolling steel of making a Φ 94 * 300 with Hanyang, Wuhan accurate band steel Co., Ltd, shown in Figure 1 in its contour structure size such as the Figure of description, body of roll inner structure size as shown in Figure 2, the core of the roll material is 9Cr2, is forged steel pieces.Surface cylindrical shape steel composite bed material is Cr12MoV, make by electroslag smelting casting, handle through certain technology, be welded on through explosion welding technique on the body of roll of core of the roll, reach Design Requirement Drawing through PROCESS FOR TREATMENT such as surface hardening, machinings again.This moment, cylinder shaped steel composite bed performance met or exceeded with the as-cast structure performance of steel grade under identical condition of heat treatment and with the forging of steel grade.Like this, a high-power composite roller for rolling steel manufacturing is finished, and can be installed on the milling train and use.On December 12nd, 2000 was delivered to Hanyang accurate band steel Co., Ltd with this roll and uses on the machine, this roller is the working roll on the four-high mill, use through a wheat harvesting period, measure barrel diameter, be approximately 93mm, wear extent is less than 1mm, both radial direction wearing and tearing were no more than 0.5mm, and the rolling band steel that comes out does not have soft spots, surface-brightening yet, thickness is even, substantially exceeded potential result, this roller can surpass more than 3 months service time, and material is same a kind of working roll of the conventional method manufacturing of 9Cr2, use on the machine about 1 month, barrel diameter had both reached minimum use diameter and had scrapped.
The another kind of situation that example 2, this example explanation high-power composite roller for rolling steel are made was both repaired.Still above example illustrates that a last high-power composite roller for rolling steel used through 3 months, and the barrel diameter after the wearing and tearing is 86mm, has both reached minimum and has used diameter and can not continue use, need recover so to use diameter dimension just can reuse.At first, roll after the wearing and tearing is carried out turning processing, the linearity of its body surface is controlled within the specific limits, produce internal diameter greater than 84mm by electroslag smelting casting, external diameter is less than the Cr12MoV round steel tube of 110mm, handle through technologies such as turning, heat treatment, make it reach peculiar state when satisfying explosive welding.By explosive welding the round steel tube is compounded on the roll barrel after the wearing and tearing, handles through technologies such as surface hardening, machinings again, make the roll of reparation reach the drawing requirement, both finished not a kind of situation of high-power composite roller for rolling steel---repair.
Claims (4)
- High-power composite roller for rolling steel product and the invention of making the method aspect of this product.High-power composite roller for rolling steel is a kind of template composite roller for rolling steel, and it belongs to the part on the milling train.The manufacturing of high-power composite roller for rolling steel relates to casting, explosive welding, heat treatment and Machining Technology.It not only has high-strength tenacity, and its wearability, anti-strip, impact resistance, anti-accident ability are better than traditional steel roll greatly.This invention claim is as follows:1, high-power composite roller for rolling steel is the template composite roller for rolling steel that is used for rolled metal sheet material and band, the architectural feature of this product is, roller core is that forged steel pieces, body surface are cylinder shaped steel composite bed, they can be with a kind of steel, also can not that neck surface also can have cylinder shaped steel composite bed, also can not have with a kind of steel, the quenching depth that cylinder shaped steel composite bed thickness can be greater than or less than roll drawing regulation is thick, also can equal the quench hardened case thickness of roll drawing regulation.
- 2, according to claim 1, it is characterized in that both new system steel rolls of high-power composite roller for rolling steel, also after the steel roll service failure, repair the steel roll that forms.
- 3, according to claim 1, it is characterized in that the material of roller surface cylinder shaped steel composite bed is a high-carbon alloy steel, its mechanics and mechanical performance meet or exceed the forging material with a kind of steel, and just its mechanics and mechanical performance surpass the as-cast structure with a kind of steel.
- 4, high-power composite roller for rolling steel manufacturing process and product method, it is characterized in that, the body of roll or neck surface cylinder shaped steel composite bed adopt electroslag smelting casting or centrifugal casting technique to make, and handle through certain technology, as the heat treatment that requires corresponding to concrete steel grade and roll serviceability, mechanical processing technique technology etc., it is welded on the body of roll or the roll neck through explosion welding technique again, through Overheating Treatment and mechanical processing technique technical finesse, reaches instructions for use subsequently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02102963 CN1251815C (en) | 2001-02-06 | 2002-02-05 | High-power composite roller for rolling steel |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01106456 | 2001-02-06 | ||
| CN01106456.0 | 2001-02-06 | ||
| CN 02102963 CN1251815C (en) | 2001-02-06 | 2002-02-05 | High-power composite roller for rolling steel |
Publications (2)
| Publication Number | Publication Date |
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| CN1382537A true CN1382537A (en) | 2002-12-04 |
| CN1251815C CN1251815C (en) | 2006-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 02102963 Expired - Fee Related CN1251815C (en) | 2001-02-06 | 2002-02-05 | High-power composite roller for rolling steel |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364678C (en) * | 2004-09-27 | 2008-01-30 | 宋春雨 | Manufacturing method for roller-shell smelting and casting for aluminium-casted mill |
| CN101941022A (en) * | 2010-08-23 | 2011-01-12 | 常州泉汇机械制造有限公司 | Structure and repairing method of roller |
| CN101134232B (en) * | 2006-08-28 | 2011-01-19 | 赤峰市恒泰特种钢铸造有限责任公司 | Technique for producing anticentripetal composite abrasion-proof hammer tools |
| CN104263893A (en) * | 2014-10-22 | 2015-01-07 | 常州泉汇机械制造有限公司 | Composite rolling mill support roll as well as roll shell quenching structure and technology of support roll |
| CN109047725A (en) * | 2018-08-17 | 2018-12-21 | 京港工业炉科技(苏州)有限公司 | A kind of renovation technique of high-temperature heat treatment furnace roller |
| CN112264465A (en) * | 2020-09-29 | 2021-01-26 | 武汉钢铁有限公司 | Centrifugal composite roller |
| CN112264600A (en) * | 2020-10-30 | 2021-01-26 | 湖南三泰新材料股份有限公司 | Pressure casting composite roller sleeve and manufacturing method thereof |
| CN113351649A (en) * | 2021-06-17 | 2021-09-07 | 江苏永钢集团有限公司 | Portable roll gap winding and unwinding devices of altitude roller box |
| CN116060466A (en) * | 2023-02-07 | 2023-05-05 | 中国第一重型机械股份公司 | Roller composite extrusion method and roller |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100491625C (en) * | 2007-03-30 | 2009-05-27 | 葛心民 | Bimetal metallurgical bonding high-precision roller piece and manufacturing method thereof |
| CN101947552A (en) * | 2010-08-23 | 2011-01-19 | 常州泉汇机械制造有限公司 | Rolling roll |
-
2002
- 2002-02-05 CN CN 02102963 patent/CN1251815C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364678C (en) * | 2004-09-27 | 2008-01-30 | 宋春雨 | Manufacturing method for roller-shell smelting and casting for aluminium-casted mill |
| CN101134232B (en) * | 2006-08-28 | 2011-01-19 | 赤峰市恒泰特种钢铸造有限责任公司 | Technique for producing anticentripetal composite abrasion-proof hammer tools |
| CN101941022A (en) * | 2010-08-23 | 2011-01-12 | 常州泉汇机械制造有限公司 | Structure and repairing method of roller |
| CN104263893A (en) * | 2014-10-22 | 2015-01-07 | 常州泉汇机械制造有限公司 | Composite rolling mill support roll as well as roll shell quenching structure and technology of support roll |
| CN109047725A (en) * | 2018-08-17 | 2018-12-21 | 京港工业炉科技(苏州)有限公司 | A kind of renovation technique of high-temperature heat treatment furnace roller |
| CN112264465A (en) * | 2020-09-29 | 2021-01-26 | 武汉钢铁有限公司 | Centrifugal composite roller |
| CN112264465B (en) * | 2020-09-29 | 2022-06-17 | 武汉钢铁有限公司 | Centrifugal composite roller |
| CN112264600A (en) * | 2020-10-30 | 2021-01-26 | 湖南三泰新材料股份有限公司 | Pressure casting composite roller sleeve and manufacturing method thereof |
| CN113351649A (en) * | 2021-06-17 | 2021-09-07 | 江苏永钢集团有限公司 | Portable roll gap winding and unwinding devices of altitude roller box |
| CN116060466A (en) * | 2023-02-07 | 2023-05-05 | 中国第一重型机械股份公司 | Roller composite extrusion method and roller |
| CN116060466B (en) * | 2023-02-07 | 2024-01-12 | 中国第一重型机械股份公司 | Roller composite extrusion method and roller |
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| Publication number | Publication date |
|---|---|
| CN1251815C (en) | 2006-04-19 |
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Granted publication date: 20060419 Termination date: 20100205 |