CN101125342A - Plane and curved surface intensified composite roll - Google Patents
Plane and curved surface intensified composite roll Download PDFInfo
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- CN101125342A CN101125342A CNA2006100199947A CN200610019994A CN101125342A CN 101125342 A CN101125342 A CN 101125342A CN A2006100199947 A CNA2006100199947 A CN A2006100199947A CN 200610019994 A CN200610019994 A CN 200610019994A CN 101125342 A CN101125342 A CN 101125342A
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Abstract
The invention discloses a plane and bent surface reinforced compound milling roller, which belongs to a component of axial machinery. The roller core of the milling roller usually adopts forged steel unit, so does the compound layer of the surface. The compound layer of the surface adopts corresponding welding technologies to weld plane compound plates or circular arc shaped bent compound plates or pipes onto the roller body. And then the compound milling roller is treated with technical processes such as corresponding heat-treatment machinery processing and so on. The roller neck has or does not have the compound layer. According to the geometrical body shapes of a compound milling roller rough cast formed by welding the compound plates with geometrical shapes on the roller core surfaces, the plane type and bent surface reinforced compound roller is mainly classified into reinforced compound plates with shapes such as prism body, circular cylinder, plane and bent surface. The producing technique of the plane and bent surface reinforced compound milling roller not only is able to manufacture new rollers, but also to carry out overall or partial renovation to the milling rollers. Therefore, the metallic material resources particularly the rare metal resources are saved remarkably. Furthermore, the manufacturing technique method of the inventionl remarkably improves the technical property of the production of the compound milling roller.
Description
Technical field: plane, curved surface intensified composite roll are to belong to a class machine components, mainly are used on the milling train.
Background technology: roll is divided into casting roll and forged steel roll by manufacture method, casting roll is mainly used in hot rolling production, casting roll metallographic structure be a kind of as-cast structure, there are defectives such as tissue looseness, segregation, crystal grain be thick, as grain roll, compound cast steel roll, casting high speed steel composite roll etc.Advantages such as forged steel roll is mainly used in cold rolling production, and it has even tissue, densification, and crystal grain is tiny are as forging steel cold roll, patented product " high-power composite roller for rolling steel " etc.
The reparation of roll is divided into local the reparation and whole the reparation.The main employing of the local reparation of roll technique for overlaying carries out built-up welding to portion and finishes reparation, carries out built-up welding as adopting welding rod, welding wire, also has submerged arc overlay welding etc.But technique for overlaying to local built-up welding after formed metallographic structure be as-cast structure, the performance after the reparation is not so good.The whole reparation of roll mainly adopts foundry engieering, technique for overlaying to finish, and also be mainly used in the reparation of casting roll, but performance still do not reach the performance of new system casting roll.Also having a kind of method is to adopt explosion welding technique to finish, and this method promptly can be used for the reparation of forged steel roll, also can be used for the reparation of casting roll, and the performance after repairing is fine, but it is a kind of whole reparation.It is a lot of that document is introduced in the argumentation of relevant roll reparation, as number of patent application is 98107161.9, patent name is " roll and the manufacturing that have overlay cladding on a kind of surface; restorative procedure ", number of patent application is 96115610.4, patent name is " cold-welding technique for partially repairing high-carbon alloy steel roller ", number of patent application is 03116017.4, patent name is " a large-scale roller hard-face overlaying welding restorative procedure ", number of patent application is 02102963.6, the documents of delivering on patent name is " high-power composite roller for rolling steel, " 2000 the 4th phases " foundry engieering " periodical such as " casting high speed steel roll progress and prospect forecast " literary composition.
Summary of the invention: plane, curved surface intensified composite roll method of manufacturing technology have been improved the manufacturability of making the high-performance composite roll with the welding technique method significantly, also solved simultaneously the integral body reparation and the local reparation problem of steel roll, and provide new technical guarantee and support significantly improving of composite roll performance.
Plane, curved surface intensified composite roll are that new system is strengthened composite roller for rolling steel, also repair the reinforcement composite roller for rolling steel that forms after the steel roll service failure, it can manufacture the different reinforcement composite roller for rolling steel of performance according to different instructions for uses, and it can stand violent heat of transformation processing such as quenching, tempering simultaneously.The plane, the combination of materials of curved surface intensified composite roll is characterized as roller core and generally adopts forged steel pieces, but also can adopt cast steel material, the surface recombination layer material adopts steel alloy, as high chrome and high-speed steel etc., the surface recombination layer material can be the material with forged steel performance, also cast steel material, plane so, curved surface intensified composite roll can manufacture roller core and composite bed is the forged steel composite roll with forged steel performance, or manufacture the cast steel composite roll that roller core and composite bed are cast steel material, or to manufacture roller core be forged steel, composite bed is the composite roller for rolling steel of cast steel, or to manufacture roller core be cast steel, composite bed is the composite roller for rolling steel of forged steel, and different like this match materials makes it have different performances.
Plane, curved surface intensified composite roll are a kind of template composite rolls that is used for plate sheet and strip, the surface composite layer of this composite roll carries out plane welding, curved surface welding by corresponding solder technology, plane steel composite board or arc-shaped surface steel composite board, pipe are welded on the corresponding site of roller core, face of weld is characterized as plane or curved surface, handle through corresponding technology and reach instructions for use, one deck or which floor surface composite layer can be.The approximate geometry shape feature that forms after the body surface welding according to this roll blank, plane, curved surface intensified composite roll mainly are divided into prismatic bodily form intensified composite roll, cylinder bodily form intensified composite roll, plane and curved surface combination bodily form intensified composite roll, their roll neck can have composite bed, can not have yet, what composite bed was arranged also can manufacture above shape, and the roll neck that does not have composite bed is the cylinder bodily form.
Prismatic bodily form intensified composite roll is meant that the body of roll composite bed of this composite roll all adopts the Planar Compound plate to be welded, make the blank after compound have prismatic shape, as blank shapes such as the quadrangular bodily form, the eight prismatic bodily forms, reach instructions for use through corresponding technology processing again.
Cylinder bodily form intensified composite roll is meant that its body of roll composite bed adopts steel pipe or some arc-shaped surface composite plate welding to form, make the blank after compound have cylindrical shape, handle through corresponding technology again and reach instructions for use, when wherein adopting steel pipe as composite bed, steel pipe and roller core material can not all have the wood property of forging energy, the composite bed steel pipe can some joints are compound be linked to be, and also can be that a steel pipe is composited.
Plane and curved surface combination bodily form intensified composite roll are meant that a body surface part adopts the arc-shaped surface composite board welding to connect, a part adopts the Planar Compound plate to weld up, the body surface composite bed is combined by plane and arc-shaped surface composite plate like this, blank after compound has plane and curved surface assembly shape, handles through corresponding technology to reach instructions for use again.
The method of manufacturing technology principle of plane, curved surface intensified composite roll is as follows:
(1) roller core is carried out machining, roller core generally will be annealed before the machining, the machining mode will be determined according to the compound roller stock of making corresponding geometry shape, promptly if make prismatic bodily form composite roll blank, then roller core is carried out corresponding flush cut processing, if make cylinder bodily form composite roll blank, then roller core is carried out corresponding turning processing, if make plane and curved surface combination bodily form composite roll blank, then roller core is carried out corresponding turning processing and plane machining.
(2) make the steel composite board that the body of roll solder side shape with roller core is complementary, if the roller core that processes is the prismatic bodily form, press the geometry of designing requirement manufacturing and roller surface so, quantity, the corresponding Planar Compound plate of size, if the roller core that processes is the cylinder bodily form, to show by design so and make the geometry that is complementary with roller surface, size, steel pipe of quantity (cover) or arc-shaped surface composite plate, if the roller core that processes is the assembly shape of plane and curved surface, so the geometry that is complementary by designing requirement manufacturing and roller surface, size, the Planar Compound plate of quantity and arc-shaped surface composite plate.More than these steel composite boards should require determine the processes technical scheme according to specific performance, generally to pass through corresponding heat treatment, machining or pressure processing, so that steel composite board, pipe (cover) reach the respective performances requirement, for example steel composite board requires the forged steel pieces for having the forged steel performance, then needs the pressure processing to modes such as steel composite board forge.
(3) steel composite board that processes is welded on the roller core surface of the corresponding geometry shape that processes by connection technology, compound composite plate is the plane steel composite board on the prismatic bodily form roller core surface, compound composite plate is steel pipe (cover) or some arc-shaped surface steel composite boards on the cylinder bodily form roller core surface, the existing plane of the composite plate steel composite board of the roller core surface recombination of the plane and the curved surface combination bodily form also has the arc-shaped surface steel composite board.The composite roll that requires to finish according to specific design just has corresponding approximate geometry shape feature like this, as the prismatic bodily form, the cylinder bodily form, plane and curved surface assembly shape.
(4) according to feature, performance and the instructions for use of specific product, technologies such as the compound roller stock of plane, curved surface that will have particular geometric shape feature is strengthened accordingly, heat treatment, machining are handled, thereby finish the manufacturing of plane, curved surface intensified composite roll.
When the method for manufacturing technology of plane, curved surface intensified composite roll was used for the steel roll reparation, its repair mode was divided into whole the reparation and local reparation dual mode.The whole repair process of repairing is basic identical with the method for manufacturing technology of plane, curved surface intensified composite roll, and its repair process is as follows:
Steel roll to be repaired to be annealed generally speaking, determine welding method and concrete recovery technique process program, roll after will annealing then carries out machining according to the composite roll blank that will make corresponding geometry shape, be about to it and carry out corresponding machining by designing requirement as roller core, make the steel composite board that is complementary with geometry of cutting roller core surface, back and material property again, pipe, again by solder technology with composite plate, pipe is welded on the roller core surface that processes, thereby finish the compound blank manufacturing of repaired roller, strengthen making the good compound blank of roll, heat treatment, technologies such as machining are handled, and reach instructions for use and finish manufacturing.
Local repair process is as follows: roll to be repaired is annealed as roller core, determine welding method and concrete recovery technique process program, carry out machining by designing requirement breaker roll damaged surfaces place then, with this local damage place excision, making the surface after the cutting is the plane, the surface that curved surface or plane and curved surface are combined into, so that carry out the welding of plane or curved surface, the composite material with respective material performance that processes that will be complementary with it again is welded on the corresponding roller surface, thereby finish the manufacturing of composite roll blank, if the diameter dimension that this moment, the composite roll blank was stipulated less than former drawing after processing is handled, and require to return to given size, can be by the plane, the whole more compound one deck of curved surface intensified composite roll method of manufacturing technology, promptly use the compound one deck of integral restoration method, then with the composite roll blank through strengthening, heat treatment, technologies such as machining are handled and are finished manufacturing, reach instructions for use.
Welding between the adjacent composite material on plane, the curved surface intensified composite roll should come to determine welding or connected mode according to specific circumstances.The essence of plane, curved surface intensified composite roll method of manufacturing technology is just main to adopt plane and curved surface steel composite board as composite bed, composite material also can be other shape, and adopt corresponding solder technology to be welded on the roller surface, solder side is plane or curved surface, handle the operation technique performance requirement that reaches roll through technologies such as reinforcement, heat treatments again, in fact the essence of this method of manufacturing technology be exactly the manufacturing principle of plane, curved surface intensified composite roll.
Above-mentioned method of manufacturing technology is applicable to the template roll made from steel, the formulation of the concrete manufacturing process technology scheme of plane, curved surface intensified composite roll must formulated in accordance with under the prerequisite of above-mentioned method of manufacturing technology principle, the difference of plane, curved surface intensified composite roll method of manufacturing technology mainly is subjected to factor affecting such as welding method, material kind, Technology for Heating Processing, as welding technology method and pressure welding technology method significant difference is arranged, so just determined to adopt different solder technology methods can produce different planes, curved surface intensified composite roll method of manufacturing technology.Because the material kind that roll adopts is more, serviceability requires also different, the combination of materials of the composite bed of plane, curved surface intensified composite roll and roller core is also varied simultaneously, different solder technology characteristics also have nothing in common with each other, so must come to determine corresponding Technology for Heating Processing and other manufacturing process technology scheme as the case may be, the while comes to determine linking and the coupling between each technology as the case may be.In addition, some know-why modes in the above plane, the curved surface intensified composite roll method of manufacturing technology principle, also can be used for the manufacturing and the reparation of bimetallic or many metals worker, mould steel product, as screw plate, but the formulation of concrete manufacture technology scheme must be determined according to the material and the performance instructions for use of specific product under the prerequisite in conjunction with above-mentioned method of manufacturing technology.
Plane, curved surface intensified composite roll and " high-power composite roller for rolling steel " are looked different situations and difference to some extent on performance, if roller core and composite material are forged steel, so under the same situation of material, its performance is the same with " high-power composite roller for rolling steel " or better than it, but its anufacturability significantly improves, and makes its manufacturing easier, and cost reduces, can carry out simultaneously the part and repair, and " high-power composite roller for rolling steel " is not all right.The plane of other combination of materials, the performance of curved surface intensified composite roll be than " high-power composite roller for rolling steel " low spot, but its cost significantly reduces, and it is easier to make.It compares the cost reduction with the forged steel roller, performance significantly improves, and the solid forged steel roll manufacturing technology can not be repaired.Plane, curved surface intensified composite roll are compared with casting rolls such as compound cast steel roller, casting high speed steel composite rolls, and its performance significantly improves, can carry out casting roll can not the part repair, the more important thing is that the performance after the reparation is fine.No matter plane, curved surface intensified composite roll still are the performance of various aspects of performance such as wearability, anti-accident ability all be better than before the roll of technology manufacturing, and significantly save metal material resource, particularly rare metal resources at obdurability.
Description of drawings: Fig. 1 is plane, the curved surface intensified composite roll front view of doing according to mechanical drawing, Fig. 2, Fig. 3, Fig. 4, Fig. 5 are plane, the curved surface intensified composite roll body of roll cutaway view of doing according to mechanical drawing, different is that Fig. 2 is prismatic bodily form intensified composite roll cutaway view, Fig. 3 is a cylinder bodily form intensified composite roll cutaway view, Fig. 4 is plane and curved surface combination bodily form intensified composite roll cutaway view, and Fig. 5 is the intensified composite roll cutaway view after local the reparation.Why draw 2, Fig. 3, Fig. 4, Fig. 5 body of roll cutaway view, be to make up method of manufacturing technology and product structure characteristic such as the bodily form, local reparation in order better to express the prismatic bodily form, the cylinder bodily form, plane and curved surface, the index wire indication is the explosive welding weld seam in the cutaway view of Fig. 2, Fig. 3, Fig. 4, Fig. 5.
The specific embodiment: concerning plane, curved surface intensified composite roll, the new system steel roll mainly contains the prismatic bodily form, cylinder bodily form peace face and three kinds of manufactures of the curved surface combination bodily form, for repairing, then is divided into whole the reparation and local the reparation.From the manufacturability of making, cylinder bodily form intensified composite roll, plane and curved surface combination bodily form intensified composite roll manufacture and its reparation are the preferred implementations of plane, curved surface intensified composite roll, are exemplified below below:
Example 1: making a composite bed material is 9Cr2Mo, and roller core is 9Cr2, and specification is plane, the curved surface intensified composite roll of φ 94 * 300, adopts cylinder bodily form process to make.At first forge a roller core blank, and annealing and carry out turning processing, manufacture and design four arc-shaped surface composite plates, the composite plate material is 9Cr2Mo, the body of roll position of the size of these four fast composite plates on should be able to all complete coating roller core, and the needs of assurance overlap joint, these four composite plates should have forging performance through forging and pressing processing simultaneously, and through corresponding heat treatment and machining, then, weld wherein two composite plates with solder technology earlier, machining is carried out to the overlapping part of the composite plate on compound in compound back, simultaneously other two composite plate overlapping parts are carried out machining, then with solder technology another piece composite board welding is connected on corresponding position, the manufacturing of composite roll blank is finished like this.Carrying out technologies such as machining, quenching and handle and finish manufacturing having finished the compound cylinder bodily form composite roll blank of body surface, reach instructions for use then, its finished product body of roll cutaway view structure as shown in Figure 3.
Example 2: making a composite bed material is 9Cr2Mo, and the roller core material is 9Cr2, and specification is plane, the curved surface intensified composite roll of φ 94 * 300, has only the body of roll that composite bed is arranged, and adopts the process manufacturing of plane and curved surface assembly shape.At first forge a roller core blank, and annealing and carry out turning processing, manufacture and design two arc-shaped surface composite plates and two blocks of Planar Compound plates, and through heat treatment and machining, the composite plate material still is 9Cr2Mo, the size of two arc-shaped surface composite plates should guarantee that they are after being compounded on the body of roll, their side is at a distance of 10 millimeters distances, adopt solder technology that the arc-shaped surface composite plate is compounded in corresponding site, carry out flush cut processing again, after processing two blocks of Planar Compound plates are welded on the plane that processes, have so just finished the manufacturing of plane and curved surface combination bodily form composite roll blank.And have a this geometry shape, then to compound blank strengthen, technologies such as turning processing, quenching handle, thereby finished the plane and finished product manufacturing that curved surface makes up bodily form intensified composite roll, its body of roll cutaway view structure is as shown in Figure 4.
3: specifications of example are φ 94 * 300, material is the cold roll of 9Cr2Mo, its front view as shown in Figure 1, it uses after a period of time body surface to peel off and scraps, its renovation technique is as follows: will wait to repair roll annealing earlier, carry out the fore-and-aft plane machining along body of roll breakage then, design processes two intersecting planes according to damaged condition, manufacture and design again two with these two plane sizes four Planar Compound plates of joining mutually, and through heat treatment and machining, these two composite plates have the forged steel pieces performance, and material is 9Cr2Mo, adopt welding technology that two composite plates are welded on the plane that processes successively then, be connected to overlap joint between two composite plates, after compound the finishing, strengthen through corresponding again, heat treatment, technologies such as machining are handled, reach instructions for use, its body of roll cutaway view structure as shown in Figure 5.
Claims (3)
1. plane, curved surface intensified composite roll are a kind of template intensified composite rolls, it is characterized in that:
(1) the i.e. composite roller for rolling steel of coming of new in plane, curved surface intensified composite roll is also repaired after the steel roll service failure and to be formed.The roller core of plane, curved surface intensified composite roll generally adopts forged steel pieces, but also can adopt cast steel material.The alloy steel material that surface composite layer had both had the forged steel performance with composite plate, pipe (cover) material, also steel alloy steel-casting.
(2) surface composite layer of plane, curved surface intensified composite roll is to adopt corresponding solder technology that Planar Compound plate or arc-shaped surface composite plate, pipe are welded on the corresponding site on roller core surface, and face of weld is characterized as plane or curved surface.Be welded on the approximate geometry shape of formed composite roll blank on the body surface of roller core according to composite plate, pipe, plane, curved surface intensified composite roll product mainly are divided into rib and live the bodily form, the cylinder bodily form, plane and curved surface combination bodily form intensified composite roll.Roll neck composite bed blank also can manufacture the prismatic bodily form, the cylinder bodily form, plane and the curved surface combination bodily form.
2. plane, the method of manufacturing technology principle of curved surface intensified composite roll is: general at first the roller core of annealed processing is carried out machining according to the compound roller stock that will manufacture corresponding geometry shape, being about to roller core is processed into by designing requirement or the prismatic bodily form, or the cylinder bodily form, or the plane and the curved surface combination bodily form etc., make steel composite board or the pipe (cover) that is complementary with the roller core geometry shape then, promptly according to or the prismatic bodily form, or the cylinder bodily form, or the geometry on plane and curved surface combination bodily form roller core surface, size, quantity produces corresponding Planar Compound plate or arc-shaped surface composite plate, pipe (cover), and through corresponding heat treatment, technologies such as machining are handled, by corresponding solder technology composite plate or the pipe (cover) that processes is welded on corresponding position, roller core surface again, thereby finished the plane, the manufacturing of curved surface intensified compound roller stock, and has a corresponding geometric properties, as the prismatic bodily form, the cylinder bodily form, the plane and the curved surface combination bodily form etc., with the plane, curved surface intensified compound roller stock carries out corresponding reinforcement, technologies such as heat treatment are handled, thereby finish the plane, the manufacturing of curved surface intensified composite roll.The method of manufacturing technology of plane, curved surface intensified composite roll promptly can be used for the manufacturing of new steel roll, also can be used for the reparation of steel roll.Some know-why modes in this manufacturing process principle, also can be used for the manufacturing and the reparation of worker, mould steel product, but the formulation of concrete manufacture technology scheme will be formulated according to the material and the serviceability of specific product under the prerequisite in conjunction with above-mentioned method of manufacturing technology.
3. according to claim 2, it is characterized in that: the repair mode of plane, curved surface intensified composite roll is divided into whole reparation and the part is repaired two kinds.Whole repair process is: generally roll to be repaired is annealed, roll after will annealing is then cut processing according to the compound roller stock that will make corresponding geometry shape, make the steel composite board or the pipe that are complementary with the geometry of cutting the back roller surface again, steel composite board, the corresponding heat treatment of Guan Yaojing, technologies such as machining are handled, by corresponding solder technology steel composite board or pipe are welded on the roller surface that processes again, again compound roller stock is strengthened accordingly, technologies such as machining are handled, and finish whole the reparation and reach instructions for use.
Local repair process is: roll to be repaired is annealed, determine welding method and concrete renovation technique technical scheme, then local breakage is carried out machining, this local damage place is cut away, make the surface after the cutting or be the plane, or be curved surface, or be the surface that plane and curved surface are combined into, the composite material that the process technology that processes that will be complementary is with it again handled passes through solder technology, by designing requirement it is welded on the corresponding machined surface of this roller, if the size after processing is handled is less than former drawing design size, and require to reach former designing requirement, can be by the compound again one deck of integral restoration method, then the compound roller stock that processes is strengthened accordingly, technologies such as heat treatment are handled, and reach instructions for use.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006100199947A CN101125342A (en) | 2006-08-16 | 2006-08-16 | Plane and curved surface intensified composite roll |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006100199947A CN101125342A (en) | 2006-08-16 | 2006-08-16 | Plane and curved surface intensified composite roll |
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| CN101125342A true CN101125342A (en) | 2008-02-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856778A (en) * | 2010-05-18 | 2010-10-13 | 武汉科技大学 | Method for repairing continuous casting and rolling roller of aluminum pole |
| CN103223568A (en) * | 2012-01-30 | 2013-07-31 | 宝山钢铁股份有限公司 | Boss back abrasion repair method for bending roll of heavy plate mill |
| CN113523370A (en) * | 2021-06-29 | 2021-10-22 | 湖北工程学院 | Processing equipment for multi-edge curved surface column part |
-
2006
- 2006-08-16 CN CNA2006100199947A patent/CN101125342A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856778A (en) * | 2010-05-18 | 2010-10-13 | 武汉科技大学 | Method for repairing continuous casting and rolling roller of aluminum pole |
| CN101856778B (en) * | 2010-05-18 | 2011-11-16 | 武汉科技大学 | Method for repairing continuous casting and rolling roller of aluminum pole |
| CN103223568A (en) * | 2012-01-30 | 2013-07-31 | 宝山钢铁股份有限公司 | Boss back abrasion repair method for bending roll of heavy plate mill |
| CN103223568B (en) * | 2012-01-30 | 2016-06-01 | 宝山钢铁股份有限公司 | Heavy plate mill roller boss back side method of worn |
| CN113523370A (en) * | 2021-06-29 | 2021-10-22 | 湖北工程学院 | Processing equipment for multi-edge curved surface column part |
| CN113523370B (en) * | 2021-06-29 | 2024-03-15 | 湖北工程学院 | Processing equipment for polygonal curved column parts |
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