CN117344242A - Steel for laser texturing work roll and method for manufacturing texturing work roll - Google Patents
Steel for laser texturing work roll and method for manufacturing texturing work roll Download PDFInfo
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- CN117344242A CN117344242A CN202311134827.7A CN202311134827A CN117344242A CN 117344242 A CN117344242 A CN 117344242A CN 202311134827 A CN202311134827 A CN 202311134827A CN 117344242 A CN117344242 A CN 117344242A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 49
- 239000010959 steel Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 238000010791 quenching Methods 0.000 claims abstract description 36
- 230000000171 quenching effect Effects 0.000 claims abstract description 36
- 238000005242 forging Methods 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 238000007788 roughening Methods 0.000 claims abstract description 25
- 230000008569 process Effects 0.000 claims abstract description 19
- 238000005516 engineering process Methods 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 9
- 238000003723 Smelting Methods 0.000 claims abstract description 7
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 238000003754 machining Methods 0.000 claims abstract description 5
- 238000002844 melting Methods 0.000 claims description 16
- 230000008018 melting Effects 0.000 claims description 16
- 238000004321 preservation Methods 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 238000007514 turning Methods 0.000 claims description 9
- 229910000734 martensite Inorganic materials 0.000 claims description 6
- 229910052720 vanadium Inorganic materials 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 238000005496 tempering Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000005097 cold rolling Methods 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 description 8
- 239000000956 alloy Substances 0.000 description 8
- 230000007547 defect Effects 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 7
- 238000005204 segregation Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 210000001787 dendrite Anatomy 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000005480 shot peening Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/18—Electroslag remelting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention discloses steel for a laser texturing working roller and a manufacturing method of the texturing working roller, and belongs to the field of machine manufacturing. The steel comprises the chemical components of 0.70-0.90% of C, 0.20-0.80% of Si, 0.20-0.80% of Mn, 2.50-4.00% of Cr, less than or equal to 0.30% of Ni, 0.50-1.00% of Mo, 0.30-0.60% of V, less than or equal to 0.015% of P and less than or equal to 0.015% of S in weight ratio; the balance of Fe and unavoidable impurities. The key point of the manufacturing method of the laser roughing working roller is that electroslag ingots are manufactured by smelting steel ingots meeting requirements and adopting a low-melting-speed electroslag remelting process, a large-width anvil forging technology is adopted in the forging process, sub-temperature solution quenching treatment is adopted in heat treatment, and finally machining and laser roughing treatment are carried out. The steel and the method can solve the problem of random microcrack dark lines on the roller surface after laser roughening of the laser roughening working roller for the cold rolling mill, prolong the service life of the roughening working roller and reduce the consumption of a roughening layer.
Description
Technical Field
The invention relates to a roller and a manufacturing method thereof, in particular to a manufacturing method of a texturing roller for rolling a cold-rolled thin steel plate with special surface morphology, belonging to the field of mechanical manufacturing.
Background
Cold rolled steel sheets having specific surface morphology have been widely used in manufacturing industry, and particularly in the automotive and household industries, steel sheets having a surface with a concave-convex pattern have been widely used. The surface appearance of the steel plate is embossed on the surface of the steel by the concave-convex pattern on the surface of the roller in the steel rolling process, and the special appearance of the working surface of the roller is finished by processing and roughening the roller surface of the roller by a roughening method such as laser, electric spark, roller shot blasting and the like.
The laser texturing technology is a new technology for roughening the roll surface of a cold-rolled working roll which is newly developed in the world. The laser roughening is to irradiate the surface of the roller with pulse laser beam with high energy density to form several tiny molten pools, and after the pulse is stopped or passed, the molten pool metal is cooled fast to form the concave-convex pattern of the annular boss structure of the micro pit and pit edge and to form the phase change strengthening point. The laser roughening roller has longer service life than shot peening, can improve rolling speed in the plate rolling process, reduce scratch on the surface of the steel plate, improve plate shape, and can remarkably improve production efficiency and product quality of factories.
The roller for rolling the steel generally has very high hardness, strength, toughness and impact resistance, so most of rollers are made of high-carbon high-alloy steel, and the carbon content of the steel used for the roller is mostly more than 1 percent, even more than 2 percent although the steel rolling process is divided into various working conditions such as hot rolling, cold rolling and the like; the alloy content is also high. Chinese patent document CN103624403a discloses a method for roughening the surface of a roll, wherein in the steel material used for the roll, the alloy elements comprise the following components in percentage by weight: 0.85 to 1.10 percent of C,0.6 to 1.0 percent of Si,0.20 to 0.8 percent of Mn,5.5 to 7.5 percent of Cr,0.30 to 0.8 percent of Mo,0.1 to 0.3 percent of V, less than or equal to 0.4 percent of Ni, less than or equal to 0.020 percent of P and less than or equal to 0.015 percent of S; the balance of Fe and unavoidable impurities. The carbon content of the steel used by the texturing roller is about 1%, and the total alloy content is approximately 9%.
The laser roughening technique is actually a modification treatment to the roll surface, and not only changes the shape and pattern of the working surface, but also changes the structure and performance of molten pool metal, so that the roughened steel surface and the rolled steel are required to have extremely high component uniformity and structure uniformity. Laser strengthening has higher requirements on roll surface composition and tissue uniformity, otherwise, the original defects on the surface of the workpiece can be amplified after roughening.
In the actual production process of the rough roller, steel microcracking often occurs when the rough roller is roughened, so that dark lines appear on the roller surface, which belongs to macroscopic defects of the rough roller, the defects not only can accelerate the scrapping period of the rough roller, but also can imprint on a plate when the steel plate is rolled, thereby reducing the quality of the plate and even leading to scrapping treatment of the plate.
Disclosure of Invention
The invention aims to solve the technical problems of providing a laser roughening working roll steel with uniform and stable chemical components and tissues and a method for manufacturing a roughened working roll by adopting the steel, so as to solve the problem of random roller surface dark marks on the roller surface after laser roughening caused by manufacturing defects of the working roll for a cold rolling mill.
In order to solve the technical problems, the invention adopts the following technical scheme:
the steel for the laser texturing working roller comprises the following chemical components in percentage by weight: 0.70 to 0.90 percent of C,0.20 to 0.80 percent of Si,0.20 to 0.80 percent of Mn,2.50 to 4.00 percent of Cr, less than or equal to 0.30 percent of Ni,0.50 to 1.00 percent of Mo,0.30 to 0.60 percent of V, less than or equal to 0.015 percent of P, less than or equal to 0.015 percent of S; the balance of Fe and unavoidable impurities.
A manufacturing method of laser texturing work rolls is characterized in that: and smelting steel ingots conforming to the chemical components and the weight percentage content, preparing electroslag ingots by adopting a low melting speed electroslag remelting process, adopting a wide anvil forging technology in a forging process, adopting sub-temperature solution quenching treatment in heat treatment, and finally carrying out mechanical processing and laser roughening treatment to obtain the laser roughing working roll.
A further improvement of the method of the invention is that: in the electroslag remelting production process, the melting speed of the electroslag remelting is controlled to be 500-600kg/h, and the melting speed deviation is controlled to be 10-30kg/h.
A further improvement of the method of the invention is that: the forging process adopts a large-width anvil forging technology, namely upsetting and drawing a billet obtained by electroslag remelting on a wide anvil, forging the billet into a cylindrical billet with the diameter close to the diameter of the roll body of a working roll, rapidly forging the cylindrical billet on a conventional anvil to form a roll billet with the required size, and performing turning after heat treatment after forging; forging heating temperature is 1100-1300 ℃, and heat preservation time is 20-30h.
A further improvement of the method of the invention is that: the heat treatment adopts the sub-temperature solution quenching treatment, which is to carry out the sub-temperature solution quenching on the turning roller blank, the quenching heating and heat preservation temperature is 850-900 ℃, the heat preservation time is 50-80min, the working layer of the roller needs to obtain the full quenching martensitic structure after quenching, and then tempering is immediately carried out.
The method of the invention is further improved in that: the method comprises the steps of preheating a turning roller blank during heat treatment, transferring the roller blank into a differential quenching device, and rapidly heating to 850-900 ℃ for heat preservation.
By adopting the technical scheme, the invention has the following technical progress:
the carbon content of the steel used in the invention is 0.70% -0.90%, which is lower than the carbon content of other roughening rollers at present, the content of conventional alloy elements such as Si, mn and the like and the content of strong carbide forming elements such as Cr, ni, mo, V and the like are also lower than the content of other roughening rollers at present, especially the content of C, cr is reduced, the segregation tendency of carbide in the steel structure can be reduced, the alloy components in the steel can be uniformly distributed by adding reasonable smelting and forging, the component segregation and the structure segregation of the steel can be reduced, and the components and the structures between the metal in a tiny molten pool and the adjacent molten pool are uniform and are not easy to generate microscopic cracks during laser roughening. The contents of Ni, mo and V in the invention can ensure the high-temperature stability of the steel and further refine grains.
On the basis of reasonably selecting alloy elements, the invention ensures that the roughing working roll does not generate dark lines during laser roughing by adopting low melting speed and controlling melting speed deviation, then adopting a large-width anvil forging technology and sub-temperature solution quenching treatment in the process of reasonably smelting, especially electroslag remelting electroslag ingot.
The control of the melting speed and the melting speed deviation in the electroslag remelting production process can improve the stability of voltage and current, thereby improving the stability of electrode melting and recrystallization, further ensuring the uniformity of electroslag steel ingot components, reducing solidification segregation and obviously improving the stability of the remelting process.
During forging, the large-width anvil forging technology is adopted, the steel billet is firstly subjected to large-proportion upsetting and drawing on the wide anvil, then the steel billet is rapidly forged into a roller billet with a required size, under the condition of large upsetting-drawing ratio, the flow of metal in the forging process can be promoted, the bridging of micro defects in the steel billet is promoted, the expansion of the micro defects on the surface layer of the steel billet caused under the condition of small upsetting-drawing proportion is avoided, the individual aggregation points of alloy carbide possibly occurring in the steelmaking process are further kneaded, and the defect expansion caused by the flow of the surface metal is avoided to the greatest extent.
The subtemperature solution quenching during heat treatment adopts the quenching heating temperature lower than the intersection of normal quenching temperature and long-time heat preservation to prevent the coarsening of the structure of the steel, promote more alloying elements in the steel to be fused into a matrix, further homogenize the components and obtain more uniform quenching structure after quenching.
The heat treatment process of the invention heats the roller body of the roller in the differential quenching device, thereby not only ensuring the metallographic structure and performance requirements of the working face part of the roller, but also reducing the deformation of the two ends of the working roller. By adopting integral preheating and rapid heating of the roller body, the aggregation growth of an austenite structure in the heating and heat preservation process can be prevented, and the working layer of the quenched working roller is ensured to be a quenched martensite structure, and the martensite structure particles are fine.
By adopting the material and the manufacturing method, the laser texturing working roller with good component uniformity, tissue uniformity and hardness uniformity can be obtained, and the abnormal consumption of the roller is reduced. Through experimental detection, dendrite segregation of the working roller obtained by the invention can be controlled within 1.5 level, most of dendrite segregation is within 0.5 level, and no problem of dark marks on the roller surface occurs after laser roughening of the roller surface.
Detailed Description
The steel for the laser texturing working roller comprises the following alloy contents in percentage by weight: 0.70 to 0.90 percent of C,0.20 to 0.80 percent of Si,0.20 to 0.80 percent of Mn,2.50 to 4.00 percent of Cr, less than or equal to 0.30 percent of Ni,0.50 to 1.00 percent of Mo,0.30 to 0.60 percent of V, less than or equal to 0.015 percent of P, less than or equal to 0.015 percent of S; the balance of Fe and unavoidable impurities. The method for manufacturing the roughened working roller by adopting the steel mainly grasps the following scheme:
smelting steel which accords with the chemical components and the weight percentage content, and preparing electroslag ingots by adopting a low-melting-rate electroslag remelting process method; in the electroslag remelting production process, the melting speed of the electroslag remelting is controlled to be 500-600kg/h, and the melting speed deviation is controlled to be 10-30kg/h.
In the forging process, a large-width anvil forging technology is adopted, upsetting and drawing of a billet with a large upsetting-drawing ratio are firstly carried out on a wide anvil, the billet is forged into a cylindrical billet with the diameter close to the diameter of a roller body of a working roller, then the cylindrical billet is rapidly forged into a roller billet with the required size on a conventional anvil, and the roller billet is subjected to turning after being subjected to heat treatment after forging. Forging heating temperature is 1100-1300 ℃, and heat preservation time is 20-30h.
The heat treatment adopts the sub-temperature solution quenching treatment, which is to carry out the sub-temperature solution quenching on the turning roller blank. During quenching, the turning roller blank is first preheated integrally at 400-500 deg.c, then transferred into a differential quenching unit to heat the roller body, the roller is then heated to 850-900 deg.c, and the temperature is maintained for 50-80min to obtain fully quenched martensitic structure for the working layer of the roller after quenching, and finally tempering is performed immediately. And finally, carrying out mechanical finish machining and laser roughening treatment to obtain the laser roughening working roll.
The specific process for manufacturing the laser texturing work roll according to the present invention may comprise the following process steps:
1) Preparing steel raw materials according to the chemical components and weight percentage content required by the steel, and preparing steel ingots according to a smelting production process;
2) The electroslag ingot is prepared according to the low melting speed process method of electroslag remelting. In the electroslag remelting production process, the melting speed is reduced to 500-600kg/h, and the melting speed deviation is reduced to 10-30kg/h.
3) In the forging process, the roller blank is manufactured according to the production process of the large-width anvil forging technology. In the process, an electroslag ingot is heated to a forging temperature in a trolley furnace at 1100-1300 ℃, heat is preserved for 20-30h, then upsetting and drawing forging are carried out on the electroslag ingot by adopting a wide anvil on an 80MN oil press through a large upsetting and drawing ratio, the electroslag ingot is forged into a cylindrical billet with the diameter close to the requirement of a roll body, then the cylindrical billet is quickly forged into a roll billet by adopting a conventional anvil by adopting a 30MN press, and then the forged roll billet is subjected to post-forging heat treatment and then is subjected to mechanical processing by adopting a machining workshop.
4) And carrying out heat treatment on the machined roller blank. During heat treatment, the roller blank after being processed is preheated in a trolley furnace at 400-500 ℃, and after the preheating is completed, the roller blank is transferred into a differential quenching device, and two ends of a roller are exposed outside the differential quenching device and only the roller body is heated. The roller body is quickly heated to 850-900 ℃ in a differential quenching device, and the temperature is kept for 50-80min after the roller body reaches the temperature. After the heat preservation is completed, transferring the roller blank into a quenching device for quenching and cooling, so that the working layer obtains a fully quenched martensitic structure, and then immediately tempering.
5) And then machining the semi-finished product working roller after heat treatment to a required shape and size, performing laser texturing treatment, and detecting to obtain the laser texturing working roller after passing the detection.
When the working roll manufactured by the method is detected, the dendrite segregation state is randomly detected on the roll body, and the components and the tissue uniformity grade of the working roll are evaluated.
The invention is further illustrated by the following examples:
the chemical compositions, main manufacturing process parameters and test results of examples 1 to 4 are shown in the following table.
Examples 1-4 the heating apparatus for forging was a trolley furnace, the large-width anvil forging press was an 80MN oil press, and the conventional anvil rapid forging used a 30MN press. The heat treatment is to preheat in a trolley furnace, the quenching heating equipment is a differential quenching device, and the quenching cooling is to cool in the quenching device by oil. The roll can be manufactured into a smooth roll shape when leaving the factory, before rolling, a user can automatically carry out laser roughening treatment according to the surface roughening shape required by the steel plate, and after the steel and the manufacturing method are used, the leaving the factory of the roll does not have the quality problems reflected by the user any more, and the feedback information is good.
Claims (6)
1. A steel for a laser roughening work roll is characterized in that: the steel comprises the following chemical components in percentage by weight: 0.70 to 0.90 percent of C,0.20 to 0.80 percent of Si,0.20 to 0.80 percent of Mn,2.50 to 4.00 percent of Cr, less than or equal to 0.30 percent of Ni,0.50 to 1.00 percent of Mo,0.30 to 0.60 percent of V, less than or equal to 0.015 percent of P, less than or equal to 0.015 percent of S; the balance of Fe and unavoidable impurities.
2. A manufacturing method of a laser texturing work roll is characterized in that: an electroslag ingot is produced by smelting steel ingots which accord with the chemical compositions and weight percentage of the steel according to claim 1 and adopting a low melting speed electroslag remelting process, a forging process adopts a wide anvil forging technology, heat treatment adopts a sub-temperature solution quenching treatment, and finally, machining and laser roughening treatment are carried out to obtain the laser roughing working roller.
3. The method for manufacturing a laser texturing roller according to claim 2, wherein: in the electroslag remelting production process, the melting speed of the electroslag remelting is controlled to be 500-600kg/h, and the melting speed deviation is controlled to be 10-30kg/h.
4. The method for manufacturing a laser texturing roller according to claim 2, wherein: the forging process adopts a large-width anvil forging technology, namely upsetting and drawing a billet obtained by electroslag remelting on a wide anvil, forging the billet into a cylindrical billet with the diameter close to the diameter of the roll body of a working roll, rapidly forging the cylindrical billet on a conventional anvil to form a roll billet with the required size, and performing turning after heat treatment after forging; forging heating temperature is 1100-1300 ℃, and heat preservation time is 20-30h.
5. The method for manufacturing a laser texturing roller according to claim 2, wherein: the heat treatment adopts the sub-temperature solution quenching treatment, which is to carry out the sub-temperature solution quenching on the turning roller blank, the quenching heating and heat preservation temperature is 850-900 ℃, the heat preservation time is 50-80min, the working layer of the roller needs to obtain the full quenching martensitic structure after quenching, and then tempering is immediately carried out.
6. The method for manufacturing a laser texturing roller according to claim 5, wherein: the method comprises the steps of preheating a turning roller blank during heat treatment, transferring the roller blank into a differential quenching device, and rapidly heating to 850-900 ℃ for heat preservation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311134827.7A CN117344242A (en) | 2023-09-05 | 2023-09-05 | Steel for laser texturing work roll and method for manufacturing texturing work roll |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311134827.7A CN117344242A (en) | 2023-09-05 | 2023-09-05 | Steel for laser texturing work roll and method for manufacturing texturing work roll |
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| CN117344242A true CN117344242A (en) | 2024-01-05 |
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| CN202311134827.7A Pending CN117344242A (en) | 2023-09-05 | 2023-09-05 | Steel for laser texturing work roll and method for manufacturing texturing work roll |
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- 2023-09-05 CN CN202311134827.7A patent/CN117344242A/en active Pending
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