CN103993143A - Cooling roller surface processing technology - Google Patents
Cooling roller surface processing technology Download PDFInfo
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- CN103993143A CN103993143A CN201410260383.6A CN201410260383A CN103993143A CN 103993143 A CN103993143 A CN 103993143A CN 201410260383 A CN201410260383 A CN 201410260383A CN 103993143 A CN103993143 A CN 103993143A
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Abstract
The invention discloses a cooling roller surface processing technology comprising the steps of (1) cutting the surface of a roller sleeve of a cooling roller to remove an unsmooth part which can be observed through naked eyes; (2) fixing the roller sleeve on a rotating shaft, and enabling the roller sleeve to rotate; (3) carrying out shot blasting treatment on the surface of the rotating roller sleeve; (4) carrying out rolling treatment on the surface of the rotating roller sleeve in a mechanical rolling way; (5) carrying out ultrasonic treatment on the surface of the roller sleeve by using an ultrasonic vibration generator before the cooling roller is used. An amorphous strip obtained when an applicant prepares the amorphous strip by using the cooling roller treated by combining the three processes including shot blasting treatment, mechanical rolling and ultrasonic treatment in the process of processing the surface of the cooling roller is good in surface smoothness and continuity, few in product flaws as well as good in strip stability and strip thickness uniformity.
Description
Technical field
The present invention relates to a kind of metallic surface complete processing, be specifically related to a kind of cooling roller surface processing technique, belong to field of metal surface treatment technology.
Background technology
Principle prepared by amorphous alloy is, make liquid metal cooling rapidly to be greater than critical cooling velocity, crystallisation process is obstructed and forms non-crystalline state, metastable state on this thermodynamics is preserved and is cooled to not change to crystalline state below glass transition temperature, the main method of its main preparation is quenching method, first metal or alloy heating and melting is become to liquid, then make them with 10 by various approach
5-10
8the high speed of K/s is cooling, causes the disordered structure of liquid metal preserved and form non-crystalline state, and sample is several microns of thin slices to tens micron thick, strip or filament according to preparation process difference.In the technique for noncrystalline alloy strip by quenching legal system, for ensureing the non-crystallization degree of alloy sample, require that the roller shell thermal conductivity of cooling roller is large, hardness is high, and roller shell and the amorphous alloy of wanting to produce have good wetting property cooling roller, just must be under the condition of long-time pouring liquid metal for meeting above-mentioned requirements, cooling roller all the time storage temperature is constant, and its roller shell surface can keep constant smooth finish and geometrical shape.
In technique by quenching legal system for noncrystalline alloy strip, the amorphous alloy liquation of wanting to produce flow through rotation low temperature roller shell surface, the wetting property of roller shell and amorphous alloy liquation, determining that amorphous alloy liquation is in the roller shell length of the surface residence time, and the amorphous alloy liquation roller shell micro-shape in when surface of flowing through, thereby the quality of the amorphous band that impact obtains, and the roughness on its infiltrating acquisition and roller shell surface and geometrical shape have important impact, therefore, for obtaining the amorphous band of good quality, in the time that processing treatment is carried out in roller shell surface, the roughness on roller shell surface is in its processing treatment, to need one of factor of considering.
Shot peening also claims shot peening strengthening, is a kind of cold-treating process, and it is widely used in long service metal parts under heavily stressed operating mode.Shot peening is under a condition of controlling completely, utilize pressurized air or centrifugal force by countless small circular shot media at a high speed and continuous injection, beat piece surface, make its surface obtain surface Hardening Treatment technique clean, coarse, sclerosis texts, particularly this effect of surface roughening, works as wetting property for cooling roller roller shell with the amorphous alloy liquation generation of wanting to produce and has crucial impact.
Chinese patent literature CN103447968A discloses a kind of shot peening technique, it is mainly that the processing parameter of shot peening has been carried out to rational optimization, particularly for cylindrical substrate, adopt optimum parameter to obtain suitable surfaceness and strengthening effect, thereby be that follow-up plating is ready.Then the method for blasting in above-mentioned document, what mainly consider is the stability of combination between base material and subsequent plating layer material, its shot peening is to prepare for follow-up plating process, do not relate to the wetting property relation of base material and amorphous alloy liquation, its Consideration also only has this index of roughness, microtexture and shape to substrate surface are not considered, and are not suitable for the processing treatment to cooling roller surface.
Summary of the invention
Cannot be applicable to the roller shell processing of cooling roller for solving shot peening technique of the prior art, and then provide a kind of cooling roller surface treatment method, thereby adjust its surfaceness and microtexture, and then make surperficial and prepared by the wish amorphous alloy liquation of roller shell produce good wetting property, to obtain high-quality amorphous alloy strip steel rolled stock.
For this reason, the technical scheme that the application takes is,
A kind of cooling roller surface processing technique, comprises,
(1) cooling roller roller shell surface is cut to the injustice place that can observe to remove naked eyes;
(2) described roller shell is fixed on turning axle, makes it rotation;
(3) shot peening is carried out in the roller shell surface in rotation, described shot-peening is the amorphous powder of particle diameter 0.01-0.03mm, nozzle extended line and shot-peening are 50-70 ° at the angle of roller shell surface impacts point place tangent line, injection direction is identical with roller shell sense of rotation, jet length 60-100mm, spraying pressure 0.7-0.9MPa, roller shell speed of rotation 60-80rpm;
(4) adopt the mode of mechanical stitch to carry out roll extrusion processing, the reactive force 200N-500N of roll extrusion, rolling speed 10～12m/min to the roller shell surface in rotation;
(5) before cooling roller uses, adopt ultrasonic vibration producer to carry out ultrasonication to roller shell surface, polishing precompression 60-120N, frequency 18-20KHZ, the circumferential speed of hard roller is not less than 20m/s.
Above-mentioned cooling roller surface processing technique is in step (3), and described amorphous powder is iron-based amorphous powder, Al-Ni-Y amorphous powder, Al-Ni-La amorphous powder, Fe-Co-B amorphous powder or Ni-Ti amorphous powder.
Above-mentioned cooling roller surface processing technique is in step (3), and the time of shot peening is 10-20min.
In above-mentioned cooling roller surface processing technique, described roller shell is copper roller.
Above-mentioned cooling roller surface processing technique in described step (4), rolling times 1-3 time.
In above-mentioned cooling roller surface processing technique, the output of the described ultrasonic vibration producer spoke 4-5 μ m that shakes, the rotating speed 10-20rmp of described roller shell.
Compared with prior art, tool of the present invention has the following advantages,
(1) applicant is carrying out cooling roller surface in the process of processing treatment, pleasantly surprised discovery is used through shot peening, mechanical stitch and three kinds of techniques of supersound process and combines the cooling roller processed while preparing amorphous band, the amorphous band surface smoothness obtaining is good, continuity is good, the flaw of product is few, band good stability, thickness of strip good uniformity.Applicant infers that producing the reason of this good phenomenon may be that the combination of three kinds of techniques is not only adjusted the roughness on cooling roller surface, the restriction of each processing parameter simultaneously may make its surperficial microtexture that change has occurred, in the slippage of cooling roller metal inside structure generation, there is viscous deformation, in the process that surfaceness reduces, three kinds of technique synergies make metal lattice distortion, distortion causes atoms metal in high potential, unsteady state, the slippage of crystal grain has reduced the ununiformity of internal crystal structure, the refinement of crystal grain, change the shape of crystal grain, strengthen the braking effect of slippage, on polycrystal deformation direction, crystal grain is elongated, form fibrous tissue, increase the area of crystal grain circumference, strengthen the surface tension of crystal grain, in several atoms ranges of microtexture stress crystal grain and in several crystal grain, all reach balance.The wetting property between cooling roller and amorphous alloy liquation is adjusted to a suitable scope by above-mentioned change, thereby the amorphous band that this cooling roller that makes to flow through prepares has excellent character.
(2), through shot peening, mechanical stitch and three kinds of art breading of supersound process, the surfaceness that has reduced cooling roller declines, and has improved its hardness and fatigue resistance.
Embodiment
Embodiment 1
(1) cooling roller copper roller shell surface is cut to the injustice place that can observe to remove naked eyes;
(2) described copper roller shell is fixed on turning axle, makes it rotation, speed of rotation 60rpm;
(3) shot peening is carried out in the roller shell surface in rotation, described shot-peening is the amorphous powder of particle diameter 0.01mm, nozzle extended line and shot-peening are 50 ° at the angle of roller shell surface impacts point place tangent line, injection direction is identical with roller shell sense of rotation, jet length 60mm, spraying pressure 0.8MPa, the time of shot peening is 15min;
(4) adopt the mode of mechanical stitch to carry out roll extrusion processing, the reactive force 400N of roll extrusion, rolling speed 10m/min, rolling times 2 times to the roller shell surface in rotation;
(5) before cooling roller uses, adopt ultrasonic vibration producer to carry out ultrasonication to roller shell surface, polishing precompression 80N, frequency 18KHZ, the circumferential speed 20m/s of hard roller, the output of described ultrasonic vibration producer shake spoke 4 μ m, in this step the rotating speed 15rmp of described roller shell.Adopting after measured its surfaceness of cooling roller that aforesaid method obtains is 0.23 μ m.
Embodiment 2
(1) cooling roller copper roller shell surface is cut to the injustice place that can observe to remove naked eyes;
(2) described copper roller shell is fixed on turning axle, makes it rotation, speed of rotation 65rpm;
(3) shot peening is carried out in the roller shell surface in rotation, described shot-peening is the Al-Ni-Y amorphous powder of particle diameter 0.02mm, nozzle extended line and shot-peening are 55 ° at the angle of roller shell surface impacts point place tangent line, injection direction is identical with roller shell sense of rotation, jet length 70mm, spraying pressure 0.7MPa, the time of shot peening is 10min;
(4) adopt the mode of mechanical stitch to carry out roll extrusion processing, the reactive force 300N of roll extrusion, rolling speed 11m/min, rolling times 1 time to the roller shell surface in rotation;
(5) before cooling roller uses, adopt ultrasonic vibration producer to carry out ultrasonication to roller shell surface, polishing precompression 60N, frequency 19KHZ, the circumferential speed 25m/s of hard roller, the output of described ultrasonic vibration producer shake spoke 5 μ m, in this step the rotating speed 10rmp of described roller shell.Adopting after measured its surfaceness of cooling roller that aforesaid method obtains is 0.01 μ m.
Embodiment 3
(1) cooling roller copper roller shell surface is cut to the injustice place that can observe to remove naked eyes;
(2) described copper roller shell is fixed on turning axle, makes it rotation, speed of rotation 70rpm;
(3) shot peening is carried out in the roller shell surface in rotation, described shot-peening is the Al-Ni-La amorphous powder of particle diameter 0.03mm, nozzle extended line and shot-peening are 60 ° at the angle of roller shell surface impacts point place tangent line, injection direction is identical with roller shell sense of rotation, jet length 100mm, spraying pressure 0.9MPa, the time of shot peening is 20min;
(4) adopt the mode of mechanical stitch to carry out roll extrusion processing, the reactive force 350N of roll extrusion, rolling speed 12m/min, rolling times 3 times to the roller shell surface in rotation;
(5) before cooling roller uses, adopt ultrasonic vibration producer to carry out ultrasonication to roller shell surface, polishing precompression 100N, frequency 20KHZ, the circumferential speed 30m/s of hard roller, the output of described ultrasonic vibration producer shake spoke 4 μ m, in this step the rotating speed 20rmp of described roller shell.Adopting after measured its surfaceness of cooling roller that aforesaid method obtains is 0.16 μ m.
Embodiment 4
(1) cooling roller copper roller shell surface is cut to the injustice place that can observe to remove naked eyes;
(2) described copper roller shell is fixed on turning axle, makes it rotation, speed of rotation 80rpm;
(3) shot peening is carried out in the roller shell surface in rotation, described shot-peening is the Fe-Co-B amorphous powder of particle diameter 0.02mm, nozzle extended line and shot-peening are 70 ° at the angle of roller shell surface impacts point place tangent line, injection direction is identical with roller shell sense of rotation, jet length 80mm, spraying pressure 0.9MPa, the time of shot peening is 18min;
(4) adopt the mode of mechanical stitch to carry out roll extrusion processing, the reactive force 500N of roll extrusion, rolling speed 12m/min, rolling times 2 times to the roller shell surface in rotation;
(5) before cooling roller uses, adopt ultrasonic vibration producer to carry out ultrasonication to roller shell surface, polishing precompression 110N, frequency 19.5KHZ, the circumferential speed 25m/s of hard roller, the output of described ultrasonic vibration producer shake spoke 5 μ m, in this step the rotating speed 15rmp of described roller shell.Adopting after measured its surfaceness of cooling roller that aforesaid method obtains is 0.52 μ m.
Embodiment 5
(1) cooling roller copper roller shell surface is cut to the injustice place that can observe to remove naked eyes;
(2) described copper roller shell is fixed on turning axle, makes it rotation, speed of rotation 75rpm;
(3) shot peening is carried out in the roller shell surface in rotation, described shot-peening is the Ni-Ti amorphous powder of particle diameter 0.03mm, nozzle extended line and shot-peening are 65 ° at the angle of roller shell surface impacts point place tangent line, injection direction is identical with roller shell sense of rotation, jet length 90mm, spraying pressure 0.8MPa, the time of shot peening is 15min;
(4) adopt the mode of mechanical stitch to carry out roll extrusion processing, the reactive force 200N of roll extrusion, rolling speed 11m/min, rolling times 2 times to the roller shell surface in rotation;
(5) before cooling roller uses, adopt ultrasonic vibration producer to carry out ultrasonication to roller shell surface, polishing precompression 120N, frequency 18.5KHZ, the circumferential speed 30m/s of hard roller, the output of described ultrasonic vibration producer shake spoke 5 μ m, in this step the rotating speed 10rmp of described roller shell.Adopting after measured its surfaceness of cooling roller that aforesaid method obtains is 0.45 μ m.
Embodiment 6
(1) cooling roller copper roller shell surface is cut to the injustice place that can observe to remove naked eyes;
(2) described copper roller shell is fixed on turning axle, makes it rotation, speed of rotation 70rpm;
(3) shot peening is carried out in the roller shell surface in rotation, described shot-peening is the iron-based amorphous powder of particle diameter 0.01mm, nozzle extended line and shot-peening are 60 ° at the angle of roller shell surface impacts point place tangent line, injection direction is identical with roller shell sense of rotation, jet length 60mm, spraying pressure 0.7MPa, the time of shot peening is 20min;
(4) adopt the mode of mechanical stitch to carry out roll extrusion processing, the reactive force 250N of roll extrusion, rolling speed 10m/min, rolling times 2 times to the roller shell surface in rotation;
(5) before cooling roller uses, adopt ultrasonic vibration producer to carry out ultrasonication to roller shell surface, polishing precompression 90N, frequency 18KHZ, the circumferential speed 20m/s of hard roller, the output of described ultrasonic vibration producer shake spoke 4 μ m, in this step the rotating speed 20rmp of described roller shell.Adopting after measured its surfaceness of cooling roller that aforesaid method obtains is 0.63 μ m.
Comparative example 1
Adopt the method in patent documentation CN103447968A embodiment 1 to enter to process to copper roller surface.Adopting after measured its surfaceness of cooling roller that aforesaid method obtains is 23 μ m.
Evaluation Example
The cooling roller that adopts the processing condition processing of embodiment 1-6 and comparative example 1 to obtain is prepared the Fe that thickness is 25 μ m
78si
13b
9amorphous band, and the performance of the amorphous band preparing is evaluated, adopt APD10 type X-ray diffractometer (CuK α radiation, wavelength X=0.154nm, voltage 35Kv) to measure the phase structure of band, determine whether it exists crystalline structure peak; On WDT electronic universal tester, measure the tensile property of amorphous band, adopt the U.S. Quanta200 of FEI Co. type scanning electron microscopic observation surface microscopic topographic, its fracture apperance is observed and is carried out on metallographic/microhardness analyser (Shanghai is light HS-1000AK still).The structure obtaining is as shown in table 1, and wherein in table 1, surface topography refers to that amorphous band is pasting the pattern of the one side of cooling roller.
Table 1 amorphous band performance
It there is crystalline structure peak in the band that the cooling roller of finding out employing comparative example that can be clear and definite by table 1 prepares, show that amorphous band exists crystal form, and the band primary structure that the cooling roller of embodiment 1-6 prepares is non-crystalline state, in addition, the inhomogeneous meeting of stress distribution of amorphous band inside causes material internal mechanical property distribution inhomogeneous, it shows as the serious unfairness of fracture surface while stretching, as can be seen here, its fracture apperance of band that the cooling roller that adopts comparative example 1 to process prepares is the curved surface rising and falling, the stress distribution that shows its amorphous band inside is inhomogeneous.In addition, the acquisition of thickness is that the highs and lows that is pasting the one side of cooling roller with root thickness 25 μ m plus-minus amorphous bands obtains.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.And the apparent variation of being extended out thus or variation are still among the protection domain in the invention.
Claims (6)
1. a cooling roller surface processing technique, comprises,
(1) cooling roller roller shell surface is cut to the injustice place that can observe to remove naked eyes;
(2) described roller shell is fixed on turning axle, makes it rotation;
(3) shot peening is carried out in the roller shell surface in rotation, described shot-peening is the amorphous powder of particle diameter 0.01-0.03mm, nozzle extended line and shot-peening are 50-70 ° at the angle of roller shell surface impacts point place tangent line, injection direction is identical with roller shell sense of rotation, jet length 60-100mm, spraying pressure 0.7-0.9MPa, roller shell speed of rotation 60-80rpm;
(4) adopt the mode of mechanical stitch to carry out roll extrusion processing, the reactive force 200N-500N of roll extrusion, rolling speed 10～12m/min to the roller shell surface in rotation;
(5) before cooling roller uses, adopt ultrasonic vibration producer to carry out ultrasonication to roller shell surface, polishing precompression 60-120N, frequency 18-20KHZ, the circumferential speed of hard roller is not less than 20m/s.
2. cooling roller surface processing technique according to claim 1, it is characterized in that, in step (3), described amorphous powder is iron-based amorphous powder, Al-Ni-Y amorphous powder, Al-Ni-La amorphous powder, Fe-Co-B amorphous powder or Ni-Ti amorphous powder.
3. cooling roller surface processing technique according to claim 2, is characterized in that, in step (3), the time of shot peening is 10-20min.
4. cooling roller surface processing technique according to claim 3, is characterized in that, described roller shell is copper roller.
5. according to the arbitrary described cooling roller surface processing technique of claim 1-4, it is characterized in that, in described step (4), rolling times 1-3 time.
6. cooling roller surface processing technique according to claim 5, is characterized in that, the output of the described ultrasonic vibration producer spoke 4-5 μ m that shakes, the rotating speed 10-20rmp of described roller shell.
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| CN201410260383.6A CN103993143B (en) | 2014-06-12 | 2014-06-12 | A kind of cooling roller surface processing technique |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261473A (en) * | 2015-11-05 | 2016-01-20 | 宁波同创强磁材料有限公司 | Method for sintering neodymium-iron-boron magnet |
| CN106272087A (en) * | 2015-05-29 | 2017-01-04 | 宝山钢铁股份有限公司 | A kind of thin band continuous casting crystallization roller texturing surface specific morphology preparation method |
| CN106868427A (en) * | 2017-02-27 | 2017-06-20 | 盘固新型合金材料（常州）有限公司 | Novel partculate shot-peening pill and its manufacture method |
| CN107457613A (en) * | 2017-08-08 | 2017-12-12 | 蒂森克虏伯普利斯坦汽车零部件（上海）有限公司 | A kind of processing method of worm shaft |
| CN108582607A (en) * | 2018-04-10 | 2018-09-28 | 浙江祥邦科技股份有限公司 | Chill roll design method for solar cell packaging adhesive film |
| CN114083225A (en) * | 2021-12-01 | 2022-02-25 | 北京理工大学 | Strong rolling and ultrasonic rolling composite strengthening method and machine tool for high-strength steel torsion shaft |
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| CN102343497A (en) * | 2011-11-23 | 2012-02-08 | 马鞍山市恒意机械有限责任公司 | Method for reconstructing surface of mill roll |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106272087A (en) * | 2015-05-29 | 2017-01-04 | 宝山钢铁股份有限公司 | A kind of thin band continuous casting crystallization roller texturing surface specific morphology preparation method |
| CN106272087B (en) * | 2015-05-29 | 2019-09-20 | 宝山钢铁股份有限公司 | A kind of thin band continuous casting crystallization roller texturing surface specific morphology preparation method |
| CN105261473A (en) * | 2015-11-05 | 2016-01-20 | 宁波同创强磁材料有限公司 | Method for sintering neodymium-iron-boron magnet |
| CN106868427A (en) * | 2017-02-27 | 2017-06-20 | 盘固新型合金材料（常州）有限公司 | Novel partculate shot-peening pill and its manufacture method |
| CN107457613A (en) * | 2017-08-08 | 2017-12-12 | 蒂森克虏伯普利斯坦汽车零部件（上海）有限公司 | A kind of processing method of worm shaft |
| CN107457613B (en) * | 2017-08-08 | 2019-09-10 | 蒂森克虏伯普利斯坦汽车零部件（上海）有限公司 | A kind of processing method of worm shaft |
| CN108582607A (en) * | 2018-04-10 | 2018-09-28 | 浙江祥邦科技股份有限公司 | Chill roll design method for solar cell packaging adhesive film |
| CN114083225A (en) * | 2021-12-01 | 2022-02-25 | 北京理工大学 | Strong rolling and ultrasonic rolling composite strengthening method and machine tool for high-strength steel torsion shaft |
| CN114083225B (en) * | 2021-12-01 | 2022-09-06 | 北京理工大学 | Strong rolling and ultrasonic rolling composite strengthening method and machine tool for high-strength steel torsion shaft |
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