CN105127205A - Large bushing roll used for producing plate strips and preparation method thereof - Google Patents
Large bushing roll used for producing plate strips and preparation method thereof Download PDFInfo
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- CN105127205A CN105127205A CN201510546922.7A CN201510546922A CN105127205A CN 105127205 A CN105127205 A CN 105127205A CN 201510546922 A CN201510546922 A CN 201510546922A CN 105127205 A CN105127205 A CN 105127205A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/03—Sleeved rolls
- B21B27/032—Rolls for sheets or strips
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- 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
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- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- 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
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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- 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
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- 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
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- 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
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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Abstract
The invention belongs to the technical field of steel rolling and discloses a large bushing roll used for producing plate strips and a preparation method thereof. Firstly, a composite roll sleeve is cast and formed by compositing and integrating outer-layer cast abrasion-resistant alloy and an inner-layer low alloy steel sleeve in a static casting method, then the composite roll sleeve and a machined waste plate strip roll are composited and integrated in a heated mode, and finally the large bushing roll used for producing the plate strips is obtained. According to the invention, large waste plate strip rollers are recycled, the energy conservation and material conversation effects are remarkable, and the economic and social benefits are high.
Description
Technical field
The invention discloses a kind of bushing roll and preparation method thereof, particularly for the production of the large-scale bushing roll and preparation method thereof of strip, belong to technical field of steel rolling.
Background technology
The wearing and tearing of roller surface working lining are that in the operation of rolling, roll consumes normally, are also the most common reasons causing roll to be scrapped.In the normal operation of rolling, after roll working lining wear extent acquires a certain degree, roll continues to use after need removing surface coarsening and be full of cracks layer by grinding roller operation, and after several grinding roller is repaired, the too small or working lining of dimension of roller runs out of, and roll entirety is scrapped.And roll working lining refers generally to roll barrel quench-hardened case thickness, monolateral general at below 100mm, usual not enough roll oeverall quality 20%.As can be seen here, the roll caused due to the consumption of working lining is scrapped and be there is great waste of material.
In order to extend roll campaign, current common method carries out built-up welding process at roller surface, Chinese invention patent CN104416293 discloses a kind of composite manufacturing by hard surfacing Casting Roller method, and it comprises: the matrix 1) manufacturing Casting Roller, processes the surface of matrix; 2) preheating is carried out to matrix; 3) built-up welding prime coat and transition zone successively in matrix periphery; 4) form Casting Roller at transition zone surface overlaying capping layer, the chemical element composition quality percentage composition of capping layer is: C0.3 ~ 0.8%; Mn1.0 ~ 4.8%; Si0.4 ~ 6.0%; Cr4.0 ~ 8.0%; Ti0.01 ~ 1.0%; V2.0 ~ 10%; W2.0 ~ 10.0%; Mo1.0 ~ 6.0%; Co2.0 ~ 5.0%; Ca0 ~ 0.4%; Ba0 ~ 0.4%; Rare earth element 0 ~ 0.5%; Surplus is Fe and other inevitable impurity; 5) slowly to heat up to Casting Roller and the temper of Slow cooling, temperature is 560 DEG C ~ 600 DEG C.Chinese invention patent CN103009015 also discloses the manufacture method of bimetal composite wear resistant metallurgical roller, comprise roller core procedure of processing, preheating step, built-up welding composite bed step, finishing step and heat treatment step, wherein: roller core procedure of processing is first pass through forging and stamping and modifier treatment with the steel that tensile strength, yield strength and shock resistance are excellent, make roller core blank, then by extremely reserved for the roughing of roller core blank built-up welding composite bed size; Preheating step is by the suitable weldering temperature of Preheating Core to 380 DEG C ± 5 DEG C.Built-up welding composite bed step is filled up by reserved built-up welding composite bed medication core welding wire built-up welding by the roller core surface submerged welding process after preheating; Finishing step is that the bimetal composite wear resistant metallurgical roller blank of heap postwelding is machined to design size; Heat treatment step is carried out quenching and modifier treatment by the bimetal composite wear resistant metallurgical roller after fine finishining, the antisticking wearing and tearing its top layer being reached possessed, the requirement of anti-abrasive wear, red hardness, thermal fatigue resistance and resistance to flaking.Chinese invention patent CN103785976 also discloses a kind of hot roll built-up welding submerged arc flux-cored wire and preparation method thereof, and its drug core component is by weight percentage: 5% ~ 14%CaF2,0% ~ 5%Na2SiF6,0% ~ 5%BaCO3,0.1% ~ 0.4%C, 2.0% ~ 5.5%Mn, 14% ~ 28%Cr, 0.8% ~ 6%Ni, 2% ~ 4.8%Si, 0.6% ~ 4.8%V, 0.8% ~ 7.2%W, 2% ~ 6%Mo, surplus is Fe.The steel band of flux-cored wire adopts low-carbon (LC), and carbon content is less than 0.05%; Medicinal powder filling rate is 18% ~ 28%, and granularity is 80 ~ 200 orders.The submerged-arc welding flux-cored wire that this invention proposes, have surfacing layer metal alloying elements distribution evenly, carbide be that disperse shape, hardness are even, impurity and diffusible hydrogen content low, crack resistance is good, and Thermal fatigue properties is strong, and surfacing hardness uniform abrasion resistance is high, the feature of long service life.Chinese invention patent CN101804530 also discloses a kind of BD roll overlaying special flux-cored wire for repairing, be made up of pipe skin and medicine core, its pipe skin is HO8A steel band, its medicine core consists of: containing the high carbon ferro-chrome of 15-25% mass percent, the chromic carbide iron of 2-10% mass percent, the manganese metal of 5-7% mass percent, the molybdenum-iron of 6-12% mass percent, the ferrotungsten of 3-10% mass percent, the vanadium iron of 5-10% mass percent, the ferrotianium of 0.5-6% mass percent, the Yttrium base rare earth of 0.3-5% mass percent, the ferro-niobium of 1-3% mass percent, the ice crystal of 4-10% mass percent, the iron powder of 10-50% mass percent, activity coefficient is 30-45%.The Cr-Mo-W-V alloy system that this invention selects optimal alloy to mate, and carry out Ti-Nb-Re microalloy crystal grain thinning, make heap apply repair layer and there is high rigidity, high abrasion, high heat-resisting, high tenacity, high resistance alternating hot and cold thermal fatigue property, the BD roll of Bead weld repair has been had than the BD roll campaign of common roll flux-cored wire reparation and increases exponentially.Chinese invention patent CN101658986 Cr3 series of rollers surfacing electrode for repairing and overlaying method, its welding rod comprises core wire and coating, and core wire is H08A steel, the quality % component of described electrode coating is: marble 36 ~ 42, fluorite 20 ~ 26, low-carbon ferromanganese 1.5 ~ 4, molybdenum-iron 1 ~ 4, high carbon ferro-chrome 13 ~ 17, soda ash 0 ~ 1.5, rare earth alloy 1 ~ 4, titanium dioxide 4 ~ 8, graphite 0.5 ~ 1.5, No. 45 ferrosilicon 3 ~ 5, silica 4 ~ 7.Deposited metal flawless, cracking resistance is good, and wearability is good, hardness and plasticity high, temper resistance is good.Welding method is easy, and deposited metal and roll are connected firmly, and meets the reparation requirement of Cr3 series of support roll preferably.Chinese invention patent CN101104180 also discloses a kind of technical scheme that medication core welding wire built-up welding repairs half steel rider.Welding process divides three layers; Ground floor transition zone, flux-cored wire composition C < 0.1%, Mn1.4-1.85%, all the other are Fe.Throat thickness 3mm.Second layer strength layer, flux-cored wire composition C0.15-0.25%, Si < 0.8%, Mn0.8-1.2%, Cr12-14%, Ni < 1%, Mo < 1%, Nb < 0.3, all the other are Fe.Throat thickness 10mm.Hardness HRC33-43.Third layer wearing layer, flux-cored wire composition C0.3-0.4%, Si < 0.8%, Mn1.2-1.5%, Cr13-15%, Ni3.5-4.5%, Mo1.5-2.5%, V < 1%, W < 3%, all the other are Fe.Throat thickness 15mm, hardness HRC40-50.Interlayer temperature about 300 DEG C is ensured, at 600 DEG C of holding furnace inside holding certain hours after being soldered continuously during welding.Improve 1-2 doubly with this technique welding ferrosteel roll life-span, cost is 1/3 of former cost, and repeatedly can repeat welding.There is fine economic benefit and social benefit.Chinese invention patent CN101003104 also discloses a kind of section roll build-up welding repair process, and its sequence of process steps is rough turn before being followed successively by roll weldering, carrying out flaw detection, preheating, built-up welding transition zone, built-up welding working lining, post weld heat treatment, roll finished product turnery processing, carrying out flaw detection; Transition zone resurfacing welding material adopts SN-YD1031 flux-cored wire to join SSF solder flux, working lining resurfacing welding material adopts SN-YD285 flux-cored wire to join HJ107 solder flux, carry out an intermediate heat-treatment when monolateral every built-up welding 30mm is thick in weld deposit process, after built-up welding completes, carry out post weld heat treatment.The BD2 roll repaired by the method is through flaw detection, and without weld defects such as slag inclusion, incomplete fusion, lack of penetration, crackles, hardness, in HRC35-42 scope, can meet roll rolling instructions for use.Chinese invention patent CN104551444 also discloses a kind of cold roll high rigidity high cracking resistance submerged arc overlay welding sintered flux and preparation method, sintered flux constituent mass percentage is: 5%≤SiO2≤12%, 1%≤ZrO2≤5%, 8%≤Al2O3≤18%, 1%≤MnO2≤5%, 3≤CaF2≤14, 5%≤MgO≤9%, 1%≤SrCO3≤4%, 5%≤Cr3C2≤12%, 2%≤NbC≤5%, 1%≤Nd2O3≤3%, 2%≤Y≤5%, 2%≤C≤5%, 3%≤Ni≤8%, 6%≤Cr-Fe≤16%, 5%≤Ti-Fe≤8%, 1%≤V-Fe≤3%, 1%≤B-Fe≤3%, 1%≤Mn-Fe≤5%, 2%≤Si-Fe≤5%, the mass percent summation of each component is 100% above.Under submerged-arc welding condition, welding technological properties is excellent, not preheating before weldering, and postwelding is without slow cooling, appearance of weld is attractive in appearance, and the removability of slag is good, and built-up welding deposited metal hardness is greater than 60HRC, and hardness is evenly distributed, do not have crackle, surfacing layer metal crack resistance is excellent, and impact flexibility is greater than 12J.Chinese invention patent CN1152491 also discloses a kind of surfacing welding electrode for roller, H08A steel is adopted to do core wire, electrode coating is low hydrogen type slag system, coating is by high carbon ferro-chrome 8 ~ 10%, molybdenum-iron 3 ~ 5%, tungsten 0.5 ~ 1.5%, high carbon ferromanganese 1 ~ 3%, lithium carbonate 0 ~ 1%, composition such as carboxymethyl cellulose 1 ~ 2% grade (proportioning is by weight percentage).This welding rod is applicable to the built-up welding of the roll stells such as 9Cr2,9CrSi, 9CrV, 9Cr2Mo, 9CrW, 9Cr2MoV, also can be used for the built-up welding of other carbon steel and steel alloy, surfacing hardness HRc >=60 under normal temperature, not preheating before weldering, postwelding need not be heat-treated again, overlay cladding flawless, can directly use under as-welded.Chinese invention patent CN103418923 also discloses a kind of build-up welding repair method of worn rolls, it is characterized in that comprising following processing step: first the wear surface of worn rolls is carried out turnery processing, then the high tough transition zone of built-up welding on finished surface, build-up wear-resistant working lining on transition zone again, then Bead weld repair roll is heat-treated, be finally refined to given size and precision.This invention and manufacturing process are in the past compared with production method, and manufacturing cost is lower, and manufacturing cycle is shorter, and Bead weld repair roll working life is long.
But, adopt overlaying method repaired roller, be suitable only for the steel rider that carbon content is lower at present, and for the large-scale roller of production strip, usually be all the high-carbon steel rider and cast iron roll that carbon content is higher, adopting overlaying method reparation, very easily there is crackle in overlay cladding and transition zone, repaired roller percent defective is high, cannot apply in the industrial production.
Summary of the invention
The present invention seeks to utilize the waste and old large-sized strip roll after using, adopt bushing method, recover roll barrel appearance and size and hardness, guarantee that large-sized strip roll has excellent result of use.
The object of the invention can be realized by following technical matters measure.
A kind of large-scale bushing roll for the production of strip, it is characterized in that, for the production of the large-scale bushing roll of strip be compound roller shell with use after the waste and old large-sized strip roll roll body hot charging of getting rid of the wearing layer of roll surface, surface coarsening layer and the layer gained that chap be combined into one, compound roller shell is combined into one by outer cast abrasion-resistant alloy and internal layer low-alloy steel bushing employing static casting methods;
Chemical composition and the mass fraction % thereof of outer cast abrasion-resistant alloy are: 1.8-2.5C, 18-25Cr, 1.5-2.0V, 1.0-1.5Mo, 1.0-1.5Ni, 3.0-3.5Mn, 0.03-0.06Ca, 0.08-0.12Mg, 0.008-0.015Ce, 0.08-0.15Ti, 0.12-0.16N, 0.03-0.06Zn, 0.5-1.0Si, <0.04S, <0.04P, surplus Fe, 10≤Cr/C≤12;
Chemical composition and the mass fraction % thereof of internal layer low-alloy steel bushing are: 0.15-0.30C, 0.17-0.40Si, 1.6-2.0Mn, 0.17-0.28Cr, 0.015-0.030Nb, 0.018-0.029Zr, 0.025-0.040V, 0.02-0.04Y, <0.03S, <0.03P, surplus Fe.
The outer cast abrasion-resistant alloy thickness of further compound roller shell reaches 50-80mm, and internal layer low-alloy steel bushing thickness is 15-25mm.
The preparation method of above-mentioned a kind of large-scale bushing roll for the production of strip, is characterized in that, comprise the following steps:
(1) low-alloy steel bushing outer surface is carried out sandblast texturing, after making its outer surface roughness reach 90-140 μm, at outer surface BAS, the volume ratio of BAS mesoboric acid and water is 1:(4.5-5.5), the coating thickness of BAS is 0.6-0.9mm;
(2) casting mold is loaded after adopting electric induction heater to be heated to 800-900 DEG C the low-alloy steel bushing after step (1) outer surface sandblast texturing and coating BAS, pour into a mould cast abrasion-resistant alloy liquation subsequently, during cast cast abrasion-resistant alloy liquation, the temperature of low-alloy steel bushing is not less than 450 DEG C, cast abrasion-resistant alloy liquation pouring temperature 1530-1560 DEG C, the cast of cast abrasion-resistant alloy liquation is after 2-4 hour, unpack and remove foundry goods, obtain composite roll cover blank, composite roll is overlapped blank to enter stove and be heated to 520-550 DEG C, be incubated stove after 8-10 hour and be chilled to temperature lower than 180 DEG C, come out of the stove air cooling to room temperature, then machining is carried out to the composite roll cover blank after heat treatment and obtain compound roller shell,
(3) composite roll that step (2) processes is inserted in stove and is heated to 300 ~ 450 DEG C, be incubated and come out of the stove after 6-8 hour, the roll body hot charging getting rid of the wearing layer of roll surface, surface coarsening layer and the layer gained that chap with waste and old large-sized strip roll is combined into one, its magnitude of interference is preferably 0.12-0.18mm, roll after hot charging compound is continued to be heated to 350-380 DEG C into stove, be incubated stove after 12-15 hour and be chilled to temperature lower than 120 DEG C, come out of the stove air cooling to room temperature, finally be refined to given size and precision, the large-scale bushing roll for the production of strip can be obtained.
After the present invention utilizes waste or old roll machined, do the roll body of bushing roll, play carrying effect, realize the recycling of waste or old roll.The present invention adopts compound roller shell, and guarantee that roller shell surface has high rigidity and excellent wearability, roller shell internal layer has the toughness of high strength and excellence and excellent machining property.Chemical composition and the mass fraction % thereof of the outer cast abrasion-resistant alloy of compound roller shell of the present invention are: 1.8-2.5C, 18-25Cr, 1.5-2.0V, 1.0-1.5Mo, 1.0-1.5Ni, 3.0-3.5Mn, 0.03-0.06Ca, 0.08-0.12Mg, 0.008-0.015Ce, 0.08-0.15Ti, 0.12-0.16N, 0.03-0.06Zn, 0.5-1.0Si, <0.04S, <0.04P, surplus Fe, 10≤Cr/C≤12, can guarantee MC and M in outer tissue
7c
3type carbide hard phase, is firmly embedded on martensite-bainite matrix, makes cladding material have excellent wearability and antifatigue peel-ability.
Chemical composition and the mass fraction % thereof of compound roller shell internal layer low-alloy steel bushing of the present invention are: 0.15-0.30C, 0.17-0.40Si, 1.6-2.0Mn, 0.17-0.28Cr, 0.015-0.030Nb, 0.018-0.029Zr, 0.025-0.040V, 0.02-0.04Y, <0.03S, <0.03P, surplus Fe, guarantee that internal layer has excellent obdurability and processing characteristics.In addition, in order to improve outer abrasion resistant alloy and internal layer low-alloy steel bushing in conjunction with effect, achieve firmly metallurgical binding, low-alloy steel bushing outer surface is carried out sandblast texturing by the present invention, after making its outer surface roughness reach 90-140 μm, at outer surface BAS, the volume ratio of BAS mesoboric acid and water is (1:4.5)-(1:5.5), and the coating thickness of BAS is 0.6-0.9mm.In order to improve bond quality further, the present invention loads casting mold after also adopting electric induction heater to be heated to 800-900 DEG C the low-alloy steel bushing after outer surface sandblast texturing and coating BAS, pour into a mould cast abrasion-resistant alloy liquation subsequently, during cast cast abrasion-resistant alloy liquation, the temperature of low-alloy steel bushing is not less than 450 DEG C, cast abrasion-resistant alloy liquation pouring temperature 1530-1560 DEG C.
Crackle is there is not in order to ensure compound roller sleeve abrasion resistant layer, in the cast of cast abrasion-resistant alloy liquation after 2-4 hour, unpack and remove foundry goods, obtain composite roll cover blank, composite roll is overlapped blank to enter stove and be heated to 520-550 DEG C, be incubated stove after 8-10 hour and be chilled to temperature lower than 180 DEG C, come out of the stove air cooling to room temperature, then machining is carried out to the composite roll cover blank after heat treatment and obtain compound roller shell, make the outer cast abrasion-resistant alloy thickness of compound roller shell reach 50-80mm, internal layer low-alloy steel bushing thickness is 15-25mm.
The composite roll processed also is inserted in stove and is heated to 300 ~ 450 DEG C by the present invention, be incubated and come out of the stove after 6-8 hour, the roll body hot charging getting rid of the wearing layer of roll surface, surface coarsening layer and the layer gained that chap with waste and old large-sized strip roll is combined into one, and its magnitude of interference is 0.12-0.18mm.In order to ensure the safe handling of large-scale bushing roll, roll after hot charging compound also continues to be heated to 350-380 DEG C into stove by the present invention, be incubated stove after 12-15 hour and be chilled to temperature lower than 120 DEG C, come out of the stove air cooling to room temperature, finally be refined to given size and precision, the large-scale bushing roll for the production of strip can be obtained.
The present invention compared with prior art, has the following advantages:
1) the large-sized strip roll scrapped can be used, accomplish to make the best use of everything, save roll fund;
2) decrease the manufacturing cycle of large-sized strip roll, there is significantly energy-saving and cost-reducing advantage;
3) bushing roll working lining hardness is high, reaches 82-85HSD, and uniformity of hardness is good, and roll surface difference of hardness is less than 1.8HSD;
4) the large-scale bushing roll for the production of strip has excellent result of use, reach the 120-125% of former roll its service life, but production cost only has the 50-55% of former roll, applies achievement of the present invention and have good economic and social benefit.
Accompanying drawing explanation
Fig. 1 is for waste and old large-sized strip roll schematic diagram after the use of machining
The roll body of the waste and old large-sized strip roll of 1-, wearing layer, the surface coarsening layer of the waste and old large-sized strip roll surface of 4-and the layer that chaps.
Fig. 2 is for the production of the large-scale bushing roll schematic diagram of strip
The roll body of the waste and old large-sized strip roll of 1-, 2-cast abrasion-resistant alloy is outer, 3-internal layer low-alloy steel bushing.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further described, but the present invention is not limited to following examples.
Embodiment 1:
The present invention utilizes the waste and old large-sized strip roll after use, adopts bushing method, recovers large-sized strip roll barrel appearance and size and hardness, guarantees that large-sized strip roll has excellent result of use.
First cast compound roller shell, compound roller shell adopts static casting methods to be combined into one by outer cast abrasion-resistant alloy 2 and internal layer low-alloy steel bushing 3, roll body 1 hot charging again compound roller shell and waste and old large-sized strip roll being got rid of the wearing layer of roll surface, surface coarsening layer and the layer gained that chap is combined into one, and obtains the large-scale bushing roll for the production of strip;
Chemical composition and the mass fraction % thereof of outer cast abrasion-resistant alloy 2 are: 1.82C, 20.47Cr, 1.53V, 1.44Mo, 1.49Ni, 3.05Mn, 0.034Ca, 0.116Mg, 0.009Ce, 0.12Ti, 0.121N, 0.058Zn, 0.64Si, 0.017S, 0.028P, surplus Fe, Cr/C=11.25;
Chemical composition and the mass fraction % thereof of internal layer low-alloy steel bushing 3 are: 0.19C, 0.36Si, 1.88Mn, 0.18Cr, 0.019Nb, 0.027Zr, 0.028V, 0.035Y, 0.014S, 0.026P, surplus Fe.
Its concrete technical matters step is:
(1) low-alloy steel bushing 3 outer surface is carried out sandblast texturing, after making its outer surface roughness reach 90-115 μm, at outer surface BAS, the volume ratio of BAS mesoboric acid and water is 1:4.5, and the coating thickness of BAS is 0.6-0.8mm;
(2) casting mold is loaded after adopting medium frequency induction heater to be heated to 800-900 DEG C the low-alloy steel bushing 3 after outer surface sandblast texturing and coating BAS, pour into a mould cast abrasion-resistant alloy liquation subsequently, during cast cast abrasion-resistant alloy liquation, the temperature of low-alloy steel bushing 3 is not less than 450 DEG C, cast abrasion-resistant alloy liquation pouring temperature 1532 DEG C, after cast abrasion-resistant alloy liquation pours into a mould 4 hours, unpack and remove foundry goods, obtain composite roll cover blank, composite roll is overlapped blank to enter stove and be heated to 520 DEG C, be incubated stove after 10 hours and be chilled to temperature lower than 180 DEG C, come out of the stove air cooling to room temperature, then machining is carried out to the composite roll cover blank after heat treatment and obtain compound roller shell, outer cast abrasion-resistant alloy 2 thickness of compound roller shell is made to reach 52mm, internal layer low-alloy steel bushing 3 thickness is 18mm,
(3) composite roll processed is inserted in stove and is heated to 380 DEG C, be incubated and come out of the stove after 7 hours, roll body 1 hot charging getting rid of the wearing layer of roll surface, surface coarsening layer and the layer gained that chap with waste and old large-sized strip roll is combined into one, its magnitude of interference is 0.12mm, roll after hot charging compound is continued be heated to 360 DEG C into stove, be incubated stove after 14 hours and be chilled to temperature lower than 120 DEG C, come out of the stove air cooling to room temperature, finally be refined to given size and precision, can obtain the large-scale bushing roll for the production of strip, its mechanical property is in table 1.
Embodiment 2:
The present invention utilizes the waste and old large-sized strip roll after use, adopts bushing method, recovers large-sized strip roll barrel appearance and size and hardness, guarantees that large-sized strip roll has excellent result of use.
First cast compound roller shell, compound roller shell adopts static casting methods to be combined into one by outer cast abrasion-resistant alloy 2 and internal layer low-alloy steel bushing 3, roll body 1 hot charging again compound roller shell and waste and old large-sized strip roll being got rid of the wearing layer of roll surface, surface coarsening layer and the layer gained that chap is combined into one, and obtains the large-scale bushing roll for the production of strip;
Chemical composition and the mass fraction % thereof of outer cast abrasion-resistant alloy 2 are: 2.44C, 24.68Cr, 1.99V, 1.02Mo, 1.36Ni, 3.48Mn, 0.059Ca, 0.087Mg, 0.014Ce, 0.09Ti, 0.148N, 0.033Zn, 0.92Si, 0.021S, 0.030P, surplus Fe, Cr/C=10.11;
Chemical composition and the mass fraction % thereof of internal layer low-alloy steel bushing 3 are: 0.29C, 0.18Si, 1.61Mn, 0.26Cr, 0.028Nb, 0.018Zr, 0.038V, 0.021Y, 0.017S, 0.025P, surplus Fe.
Concrete technical matters step is:
(1) low-alloy steel bushing 3 outer surface is carried out sandblast texturing, after making its outer surface roughness reach 120-140 μm, at outer surface BAS, the volume ratio of BAS mesoboric acid and water is 1:5.5, and the coating thickness of BAS is 0.7-0.9mm;
(2) casting mold is loaded after adopting line-frequency induction heater to be heated to 800-900 DEG C the low-alloy steel bushing 3 after outer surface sandblast texturing and coating BAS, pour into a mould cast abrasion-resistant alloy liquation subsequently, during cast cast abrasion-resistant alloy liquation, the temperature of low-alloy steel bushing 3 is not less than 450 DEG C, cast abrasion-resistant alloy liquation pouring temperature 1559 DEG C, after cast abrasion-resistant alloy liquation pours into a mould 2 hours, unpack and remove foundry goods, obtain composite roll cover blank, composite roll is overlapped blank to enter stove and be heated to 550 DEG C, be incubated stove after 8 hours and be chilled to temperature lower than 180 DEG C, come out of the stove air cooling to room temperature, then machining is carried out to the composite roll cover blank after heat treatment and obtain compound roller shell, outer cast abrasion-resistant alloy 2 thickness of compound roller shell is made to reach 75mm, internal layer low-alloy steel bushing 3 thickness is 25mm,
(3) composite roll processed is inserted in stove and is heated to 450 DEG C, be incubated and come out of the stove after 6 hours, roll body 1 hot charging getting rid of the wearing layer of roll surface, surface coarsening layer and the layer gained that chap with waste and old large-sized strip roll is combined into one, its magnitude of interference is 0.18mm, roll after hot charging compound is continued be heated to 380 DEG C into stove, be incubated stove after 12 hours and be chilled to temperature lower than 120 DEG C, come out of the stove air cooling to room temperature, finally be refined to given size and precision, can obtain the large-scale bushing roll for the production of strip, its mechanical property is in table 1.
Embodiment 3:
The present invention utilizes the waste and old large-sized strip roll after use, adopts bushing method, recovers large-sized strip roll barrel appearance and size and hardness, guarantees that large-sized strip roll has excellent result of use
First cast compound roller shell, compound roller shell adopts static casting methods to be combined into one by outer cast abrasion-resistant alloy 2 and internal layer low-alloy steel bushing 3, roll body 1 hot charging again compound roller shell and waste and old large-sized strip roll being got rid of the wearing layer of roll surface, surface coarsening layer and the layer gained that chap is combined into one, and obtains the large-scale bushing roll for the production of strip;
Chemical composition and the mass fraction % thereof of outer cast abrasion-resistant alloy 2 are: 2.14C, 24.69Cr, 1.79V, 1.35Mo, 1.08Ni, 3.28Mn, 0.049Ca, 0.099Mg, 0.011Ce, 0.107Ti, 0.144N, 0.051Zn, 0.82Si, 0.012S, 0.029P, surplus Fe ,≤Cr/C=11.54;
Chemical composition and the mass fraction % thereof of internal layer low-alloy steel bushing 3 are: 0.22C, 0.31Si, 1.97Mn, 0.19Cr, 0.020Nb, 0.025Zr, 0.031V, 0.034Y, 0.019S, 0.020P, surplus Fe.
Its concrete technical matters step is:
(1) low-alloy steel bushing 3 outer surface is carried out sandblast texturing, after making its outer surface roughness reach 100-130 μm, at outer surface BAS, the volume ratio of BAS mesoboric acid and water is 1:5, and the coating thickness of BAS is 0.6-0.7mm;
(2) casting mold is loaded after adopting electric induction heater to be heated to 800-900 DEG C the low-alloy steel bushing 3 after outer surface sandblast texturing and coating BAS, pour into a mould cast abrasion-resistant alloy liquation subsequently, during cast cast abrasion-resistant alloy liquation, the temperature of low-alloy steel bushing 3 is not less than 450 DEG C, cast abrasion-resistant alloy liquation pouring temperature 1541 DEG C, after cast abrasion-resistant alloy liquation pours into a mould 3 hours, unpack and remove foundry goods, obtain composite roll cover blank, composite roll is overlapped blank to enter stove and be heated to 540 DEG C, be incubated stove after 9 hours and be chilled to temperature lower than 180 DEG C, come out of the stove air cooling to room temperature, then machining is carried out to the composite roll cover blank after heat treatment and obtain compound roller shell, outer cast abrasion-resistant alloy 2 thickness of compound roller shell is made to reach 60mm, internal layer low-alloy steel bushing 3 thickness is 20mm,
(3) composite roll processed is inserted in stove and is heated to 300 DEG C, be incubated and come out of the stove after 8 hours, roll body 1 hot charging getting rid of the wearing layer of roll surface, surface coarsening layer and the layer gained that chap with waste and old large-sized strip roll is combined into one, its magnitude of interference is 0.15mm, roll after hot charging compound is continued be heated to 350 DEG C into stove, be incubated stove after 15 hours and be chilled to temperature lower than 120 DEG C, come out of the stove air cooling to room temperature, finally be refined to given size and precision, can obtain the large-scale bushing roll for the production of strip, its mechanical property is in table 1.
Table 1 is for the production of the large-scale bushing roll mechanical property of strip
The present invention is high for the production of the large-scale bushing roll working lining hardness of strip, reach 82-85HSD, and uniformity of hardness is good, roll surface difference of hardness is less than 1.8HSD, for large strip rolling mill, the high Ni-Cr infinite cold hardness cast iron roll generally used at present can be replaced, reach the 120-125% of former roll its service life, but production cost only has the 50-55% of former roll, present invention achieves the twice laid of large-scale waste and old strip roll, there is significantly energy-conservation, material-saving effect, apply achievement of the present invention and there is good economic and social benefit.
Claims (4)
1. the large-scale bushing roll for the production of strip, it is characterized in that, large-scale bushing roll for the production of strip is that the roll body hot charging that compound roller shell and waste and old large-sized strip roll get rid of the wearing layer of roll surface, surface coarsening layer and the layer gained that chap is combined into one, and compound roller shell adopts static casting methods to be combined into one by outer cast abrasion-resistant alloy and internal layer low-alloy steel bushing;
Chemical composition and the mass fraction % thereof of outer cast abrasion-resistant alloy are: 1.8-2.5C, 18-25Cr, 1.5-2.0V, 1.0-1.5Mo, 1.0-1.5Ni, 3.0-3.5Mn, 0.03-0.06Ca, 0.08-0.12Mg, 0.008-0.015Ce, 0.08-0.15Ti, 0.12-0.16N, 0.03-0.06Zn, 0.5-1.0Si, <0.04S, <0.04P, surplus Fe, 10≤Cr/C≤12;
Chemical composition and the mass fraction % thereof of internal layer low-alloy steel bushing are: 0.15-0.30C, 0.17-0.40Si, 1.6-2.0Mn, 0.17-0.28Cr, 0.015-0.030Nb, 0.018-0.029Zr, 0.025-0.040V, 0.02-0.04Y, <0.03S, <0.03P, surplus Fe.
2. according to a kind of large-scale bushing roll for the production of strip of claim 1, it is characterized in that, the outer cast abrasion-resistant alloy thickness of compound roller shell reaches 50-80mm, and internal layer low-alloy steel bushing thickness is 15-25mm.
3., according to the preparation method of a kind of large-scale bushing roll for the production of strip of claim 1, it is characterized in that, comprise the following steps:
(1) low-alloy steel bushing outer surface is carried out sandblast texturing, after making its outer surface roughness reach 90-140 μm, at outer surface BAS, the volume ratio of BAS mesoboric acid and water is 1:(4.5-5.5), the coating thickness of BAS is 0.6-0.9mm;
(2) casting mold is loaded after adopting electric induction heater to be heated to 800-900 DEG C the low-alloy steel bushing after step (1) outer surface sandblast texturing and coating BAS, pour into a mould cast abrasion-resistant alloy liquation subsequently, during cast cast abrasion-resistant alloy liquation, the temperature of low-alloy steel bushing is not less than 450 DEG C, cast abrasion-resistant alloy liquation pouring temperature 1530-1560 DEG C, the cast of cast abrasion-resistant alloy liquation is after 2-4 hour, unpack and remove foundry goods, obtain composite roll cover blank, composite roll is overlapped blank to enter stove and be heated to 520-550 DEG C, be incubated stove after 8-10 hour and be chilled to temperature lower than 180 DEG C, come out of the stove air cooling to room temperature, then machining is carried out to the composite roll cover blank after heat treatment and obtain compound roller shell,
(3) composite roll that step (2) processes is inserted in stove and is heated to 300 ~ 450 DEG C, be incubated and come out of the stove after 6-8 hour, the roll body hot charging getting rid of the wearing layer of roll surface, surface coarsening layer and the layer gained that chap with waste and old large-sized strip roll is combined into one, roll after hot charging compound is continued to be heated to 350-380 DEG C into stove, be incubated stove after 12-15 hour and be chilled to temperature lower than 120 DEG C, come out of the stove air cooling to room temperature, finally be refined to given size and precision, the large-scale bushing roll for the production of strip can be obtained.
4. according to the method for claim 3, it is characterized in that, its magnitude of interference of step (3) hot charging compound tense is 0.12-0.18mm.
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Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57195517A (en) * | 1981-05-27 | 1982-12-01 | Kubota Ltd | Three-layered sleeve for h-steel rolling roll |
| JPS57195517U (en) * | 1981-06-03 | 1982-12-11 | ||
| CN1173403A (en) * | 1996-08-13 | 1998-02-18 | 鞍山钢铁集团公司 | Sleeving regeneration tech. for cold-rolling working roller |
| CN2281228Y (en) * | 1995-03-10 | 1998-05-13 | 鞍山钢铁公司 | Composite support roller for cold rolling |
| CN101058099A (en) * | 2006-04-21 | 2007-10-24 | 佳木斯大学 | Producing technology method for centrifugal casting composite bimetallic combination roll |
| CN101412105A (en) * | 2008-11-28 | 2009-04-22 | 北京工业大学 | Method for producing wear-resistant composite roller |
| CN101412050A (en) * | 2008-11-28 | 2009-04-22 | 北京工业大学 | Abrasion-proof cast iron roll collar for straightening steel rail and preparation method thereof |
| CN101439351A (en) * | 2008-12-31 | 2009-05-27 | 北京工业大学 | Centrifugal casting production method of high-boron high-speed steel composite roller |
| CN101704024A (en) * | 2009-11-20 | 2010-05-12 | 娄底市三泰轧辊有限公司 | Hot charging thick-wall combination roller with bimetal roll cover |
| CN102251187A (en) * | 2011-07-19 | 2011-11-23 | 中材装备集团有限公司 | High-speed steel, extrusion roller containing high-speed steel and production method of extrusion roller |
| CN102430582A (en) * | 2011-12-29 | 2012-05-02 | 河北津西钢铁集团大方重工科技有限公司 | Roll sleeve of ultra-strong wear-resistant high alloy steel roll squeezer and manufacturing method roll sleeve |
| CN102615108A (en) * | 2012-04-09 | 2012-08-01 | 北京工业大学 | Centrifugal casting high-speed steel composite roll and manufacture method thereof |
| CN102962423A (en) * | 2012-11-28 | 2013-03-13 | 江苏共昌轧辊股份有限公司 | Centrifugal high-carbon, high-boron and high-speed steel composite roller shell and fabrication method of combined roller of composite roller shell |
| CN103008050A (en) * | 2012-10-23 | 2013-04-03 | 河北华宇法兰制造有限公司 | Surfacing-free centrifugal combined ultra-high anti-abrasion roll squeezer roller sleeve and manufacturing method thereof |
| CN103624084A (en) * | 2013-11-20 | 2014-03-12 | 枣庄瑞兴机械制造有限公司 | Resource-saving type high-boron high-speed steel composite roll and manufacturing method thereof |
| CN103866200A (en) * | 2013-10-28 | 2014-06-18 | 娄底市鸿亿新型耐磨材料厂（普通合伙） | High-boron high-speed steel combined roller and manufacturing method thereof |
| CN104148399A (en) * | 2014-06-16 | 2014-11-19 | 枣庄瑞兴机械制造有限公司 | Wear-resisting roll used for steel rolling intermediate mill frame and manufacturing method thereof |
| CN104384193A (en) * | 2014-10-16 | 2015-03-04 | 中钢集团邢台机械轧辊有限公司 | High speed steel finishing roll of wire bar mill and manufacturing method of high speed steel finishing roll |
| JP5768947B2 (en) * | 2013-05-02 | 2015-08-26 | 日立金属株式会社 | Composite roll for hot rolling made by centrifugal casting |
-
2015
- 2015-08-31 CN CN201510546922.7A patent/CN105127205B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57195517A (en) * | 1981-05-27 | 1982-12-01 | Kubota Ltd | Three-layered sleeve for h-steel rolling roll |
| JPS57195517U (en) * | 1981-06-03 | 1982-12-11 | ||
| CN2281228Y (en) * | 1995-03-10 | 1998-05-13 | 鞍山钢铁公司 | Composite support roller for cold rolling |
| CN1173403A (en) * | 1996-08-13 | 1998-02-18 | 鞍山钢铁集团公司 | Sleeving regeneration tech. for cold-rolling working roller |
| CN101058099A (en) * | 2006-04-21 | 2007-10-24 | 佳木斯大学 | Producing technology method for centrifugal casting composite bimetallic combination roll |
| CN101412105A (en) * | 2008-11-28 | 2009-04-22 | 北京工业大学 | Method for producing wear-resistant composite roller |
| CN101412050A (en) * | 2008-11-28 | 2009-04-22 | 北京工业大学 | Abrasion-proof cast iron roll collar for straightening steel rail and preparation method thereof |
| CN101439351A (en) * | 2008-12-31 | 2009-05-27 | 北京工业大学 | Centrifugal casting production method of high-boron high-speed steel composite roller |
| CN101704024A (en) * | 2009-11-20 | 2010-05-12 | 娄底市三泰轧辊有限公司 | Hot charging thick-wall combination roller with bimetal roll cover |
| CN102251187A (en) * | 2011-07-19 | 2011-11-23 | 中材装备集团有限公司 | High-speed steel, extrusion roller containing high-speed steel and production method of extrusion roller |
| CN102430582A (en) * | 2011-12-29 | 2012-05-02 | 河北津西钢铁集团大方重工科技有限公司 | Roll sleeve of ultra-strong wear-resistant high alloy steel roll squeezer and manufacturing method roll sleeve |
| CN102615108A (en) * | 2012-04-09 | 2012-08-01 | 北京工业大学 | Centrifugal casting high-speed steel composite roll and manufacture method thereof |
| CN103008050A (en) * | 2012-10-23 | 2013-04-03 | 河北华宇法兰制造有限公司 | Surfacing-free centrifugal combined ultra-high anti-abrasion roll squeezer roller sleeve and manufacturing method thereof |
| CN102962423A (en) * | 2012-11-28 | 2013-03-13 | 江苏共昌轧辊股份有限公司 | Centrifugal high-carbon, high-boron and high-speed steel composite roller shell and fabrication method of combined roller of composite roller shell |
| JP5768947B2 (en) * | 2013-05-02 | 2015-08-26 | 日立金属株式会社 | Composite roll for hot rolling made by centrifugal casting |
| CN103866200A (en) * | 2013-10-28 | 2014-06-18 | 娄底市鸿亿新型耐磨材料厂（普通合伙） | High-boron high-speed steel combined roller and manufacturing method thereof |
| CN103624084A (en) * | 2013-11-20 | 2014-03-12 | 枣庄瑞兴机械制造有限公司 | Resource-saving type high-boron high-speed steel composite roll and manufacturing method thereof |
| CN104148399A (en) * | 2014-06-16 | 2014-11-19 | 枣庄瑞兴机械制造有限公司 | Wear-resisting roll used for steel rolling intermediate mill frame and manufacturing method thereof |
| CN104384193A (en) * | 2014-10-16 | 2015-03-04 | 中钢集团邢台机械轧辊有限公司 | High speed steel finishing roll of wire bar mill and manufacturing method of high speed steel finishing roll |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623861A (en) * | 2016-10-17 | 2017-05-10 | 武汉春禾科技有限公司 | Wear-resisting roll collar |
| CN107350289A (en) * | 2017-06-29 | 2017-11-17 | 太仓市钧胜轧辊有限公司 | A kind of high hardness wear-resisting type composite roll |
| CN108277436A (en) * | 2018-03-27 | 2018-07-13 | 东北大学 | A kind of high-toughness wear-resistant bimetallic composite roll set and preparation method |
| CN108342657A (en) * | 2018-03-27 | 2018-07-31 | 东北大学 | A kind of high abrasion cermet composite roll set and preparation method thereof |
| CN108342657B (en) * | 2018-03-27 | 2019-06-11 | 东北大学 | A kind of high abrasion cermet composite roll set and preparation method thereof |
| 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 |
| CN109513903A (en) * | 2018-11-22 | 2019-03-26 | 湖南三泰新材料股份有限公司 | A kind of low-carbon high-boron wear-resistant alloy roll and preparation method thereof |
| CN109550787A (en) * | 2018-12-07 | 2019-04-02 | 燕山大学 | Segmented changeable shrinking-fitting range combined type cold-rolling support roll |
| CN111438201A (en) * | 2020-04-01 | 2020-07-24 | 上海英佛曼纳米科技股份有限公司 | Cold rolling tensioning roller with wear-resistant rough and super-reduction-resistant nano coating |
| CN117226075A (en) * | 2023-10-08 | 2023-12-15 | 湖南省品源机械制造有限公司 | Integrally formed bimetal cast roller and casting process thereof |
| CN117226075B (en) * | 2023-10-08 | 2024-02-23 | 湖南省品源机械制造有限公司 | Manufacturing process of integrally formed bimetal cast roller |
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Inventor after: Yan Ming Inventor before: Yan Jianwen |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170717 Address after: 417000 Loudi City, Hunan province Lian bin Cun Huangnitang Louxing district public offices Applicant after: Loudi Juneng high wear-resistant materials Co. Ltd. Address before: 417000 Loudi City, Hunan province Huangnitang Lian bin Cun, Louxing District Office Applicant before: Loudi Hongyi new type abrasion resistant material factory (general partnership) |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |