CN106181217A - Compression roller and manufacture method thereof for cement industry roll squeezer - Google Patents

Compression roller and manufacture method thereof for cement industry roll squeezer Download PDF

Info

Publication number
CN106181217A
CN106181217A CN201610563447.9A CN201610563447A CN106181217A CN 106181217 A CN106181217 A CN 106181217A CN 201610563447 A CN201610563447 A CN 201610563447A CN 106181217 A CN106181217 A CN 106181217A
Authority
CN
China
Prior art keywords
roller
layer
waste
compression roller
old
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610563447.9A
Other languages
Chinese (zh)
Inventor
曲作鹏
包志坚
杜海涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Kehuan Technology Co Ltd
Original Assignee
Jiangsu Kehuan Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Kehuan Technology Co Ltd filed Critical Jiangsu Kehuan Technology Co Ltd
Priority to CN201610563447.9A priority Critical patent/CN106181217A/en
Publication of CN106181217A publication Critical patent/CN106181217A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B23P6/00—Restoring or reconditioning objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/30—Shape or construction of rollers
    • 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
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • 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
    • C22C38/36—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.7% by weight of carbon
    • 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
    • C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Abstract

The present invention relates to compression roller of a kind of cement industry roll squeezer and preparation method thereof, this compression roller is to be prepared by reproducing method by the waste and old roller of steel industry.Waste and old for steel industry roller is prepared by reproducing method the compression roller of cement industry roll squeezer, not only solve the added value waste problem that a large amount of waste and old roller of current steel industry uses the tradition mode of melting down to cause, reduce tradition and melt down the problem of environmental pollution that technique is brought, and the manufacturing cost of cement industry roller press squeeze roll can be substantially reduced, the compression roller stable performance of the cement industry roll squeezer simultaneously manufactured, it is possible to meet application request.

Description

Compression roller and manufacture method thereof for cement industry roll squeezer
Technical field
The invention belongs to waste and old roller Rebuilding engineering technical field, be specifically related to a kind of squeezing for cement industry roll squeezer Pressure roller and manufacture method thereof.
Background technology
Present stage, growing continuously and fast and heavy industrialization trend of China's economic so that the nature that China lacks relatively Resource is bearing huge pressure.In this context, construction minimizing (Reduce), recycling (Reuse), recirculation are pursued And remanufacture " 4R " Circular Economy of (Remanufacture), and then change and chase after the most merely (Recycle) Seek the idea of development of scale and speed, be not only a kind of policy guidance, and admitted by increasing people in the industry.
Rebuilding engineering is an emerging research field quickly grown and new industry.China started again from 1999 Manufacturing engineering is studied comprehensively as a subject system and is promoted.Rebuilding engineering is Instruct, realize regeneration as target with waste product, with high-quality, efficient, energy-conservation, material-saving, environmental protection as criterion, with advanced technology It is produced as means with industrialization, carries out repairing, transforming a series of technical measures or the general name of engineering activity of waste product.Letter speech It, Rebuilding engineering is the industrialization of waste product high-tech maintenance.The object of study of Rebuilding engineering can be both complete machine, be System, facility, it is also possible to be its parts etc..
2011, the production of China's steel industry continued to continue to increase rapidly.From the point of view of cumulative production, crude steel yield adds up Reaching 6.83 hundred million tons, increase by 8.89% on a year-on-year basis, steel cumulative production reaches 8.81 hundred million tons, increases by 12.3% on a year-on-year basis.Continue to keep The position of world steel yield first, accounts for global 50%.
Iron and steel metallurgical industry is the basic activity of country, is also the heavy industry of country, and it is various that it produces equipment part, big portion Point be high (alternation) stress, high thermal stress adverse circumstances under work, as Continuous Casting Rolls, alignment roller, grooved roller, half steel rider, Support roller, Wrapping Roll, pinch roll, conveying roller, cast tube roller, heat (cold) roll working roll etc..Due to depositing of a variety of causes such as friction, abrasion , the normal operation of equipment to be maintained, substantial amounts of standby spare part will be consumed every year.In such devices, various rolls are beyond doubt The wherein equipment part of most critical, its consumption is big, expensive.
The large-scale roller of the iron and steel enterprise of present stage uses after arriving the life-span and processes initially with the mode changing position, After process in the way of scrap iron.Some large-scale roller weight reaches more than 30 tons, and new product purchasing price is more than 1,000,000, this kind of large-scale The added value that roll itself contains is the biggest.Traditional processing mode causes the huge waste of resource.
Therefore, the problem that presently, there are is to need to research and develop a kind of technique processing large-scale waste or old roll avoid or subtract Few wasting of resources.
Summary of the invention
The technical problem to be solved is for above-mentioned the deficiencies in the prior art, it is provided that a kind of cement industry roll-in Compression roller of machine and preparation method thereof.Waste and old for steel industry roller is prepared by reproducing method the extruding of cement industry roll squeezer Roller, not only solves the added value waste problem that a large amount of waste and old roller of current steel industry uses the tradition mode of melting down to cause, reduces Tradition melts down the problem of environmental pollution that technique is brought, and can be substantially reduced being manufactured into of cement industry roller press squeeze roll This, the compression roller stable performance of the cement industry roll squeezer simultaneously manufactured, it is possible to meet application request.
To this end, first aspect present invention provides a kind of compression roller for cement industry roll squeezer, it is with steel industry Waste and old roller is raw material, by forming gradient overlay cladding or preparation in the direct built-up welding in surface of the waste and old roller eliminating fatigue layer Roller shell prepares compression roller crude product, prepares hardened layer the most again on compression roller crude product surface or grinds compression roller crude product surface Optical processing prepares.
According to the present invention, described gradient overlay cladding radially includes crack arrest layer, transition the most successively along compression roller crude product Layer and hardstanding；Wherein, described crack arrest layer contains following element: Ni 0.3%-2%, Cr4%-9%, Si by weight 0.3%-1%, Mn 0.3%-1.5%, Co 0.1%-0.5% and the Fe of surplus；Described transition zone contain by weight with Lower element: Cr 23%-28%, Si 0.3%-1%, Mn 0.3%-1.5%, C 3%-4%, Mo 1%-2% and surplus Fe；Described hardstanding contains following element: Cr 26%-30%, Si0.3%-1%, Mn 0.3%-1.5%, C by weight 3%-5%, Mo 1%-2%, Nb 5%-8% and the Fe of surplus.
In some embodiments of the invention, in described gradient overlay cladding, the thickness of described crack arrest layer is 6-10mm；Institute Stating the thickness≤35mm of excessive layer, the thickness of the most described excessive layer is 35-42mm；The thickness of described hardstanding is 12-15mm.
According to the present invention, described compound roller shell includes internal layer, bimetallic fused layers and outer the most successively Layer；Wherein, described inner layer material is 35CrMo steel；Cladding material is 20MnCr5Steel；Bimetallic fused layers material is 35CrMo Steel/20MnCr5Steel.
In some embodiments of the invention, the thickness of described internal layer is 300-600mm；The thickness of described bimetallic fused layers Degree is 40-45mm；The thickness of described outer layer is 12-15mm.
In some embodiments of the invention, the material of described hardened layer is high Cr material.The thickness of described hardened layer is 30-60mm。
Second aspect present invention provides the preparation method of a kind of compression roller as described in the first aspect of the invention, including:
Step B, radially removes the fatigue layer of steel industry waste and old roller work surface, prepares and eliminates the waste and old of fatigue layer Roller；
Step C, carries out surface reconditioning process to the waste and old roller eliminating fatigue layer, prepares compression roller crude product；
Step D, carries out Surface Machining process to compression roller crude product, prepares the compression roller of cement industry roll squeezer；
Wherein, described surface reconditioning processes and includes that built-up welding processes or bushing process.
According to the present invention, in step C, work surface external diameter and the cement industry roll-in of the waste and old roller of fatigue layer will be eliminated The work surface external diameter of the compression roller of machine compares: as the two difference ＜ 150mm, and the mode using built-up welding to process carries out surface Repair process；As the two difference >=150mm, the mode of bushing process is used to carry out surface reconditioning process.
In some embodiments of the invention, described built-up welding processes the work surface being included in the waste and old roller eliminating fatigue layer Directly built-up welding forms gradient overlay cladding；Described gradient overlay cladding radially include the most successively along compression roller crude product crack arrest layer, Transition zone and hardstanding.
According to the present invention, described bushing process includes:
Step M, is combined roller shell with the waste and old roller eliminating fatigue layer for roller core preparation；
Step N, is embedded in compound roller shell on roller core, and combination forms the compression roller crude product of cement industry roll squeezer；
Wherein, the internal diameter of described compound roller shell is equal with the external diameter of roller core.
In some embodiments of the invention, in step D, described Surface Machining processes and is included in compression roller crude product surface Prepare hardened layer or compression roller crude product surface is carried out polishing process.
In other embodiments of the present invention, in stepb, the tired of the waste and old roller of steel industry radially work surface is being removed The thickness of the waste and old roller of the steel industry radially fatigue layer of work surface is first measured before labor layer.
According to the inventive method, described method is additionally included in step A before step B, waste and old to steel industry vertically Roller work surface is machined out processing so that the axial length of steel industry waste and old roller work surface squeezes with cement industry roll squeezer The axial length of pressure roller is identical.
Accompanying drawing explanation
Come below in conjunction with the accompanying drawings the present invention is described in further detail.
Fig. 1 is steel industry waste and old roller schematic diagram.
Fig. 2 is that the mode using bushing process carries out the signal of surface reconditioning process to the waste and old roller eliminating fatigue layer Figure；In figure, the implication of reference is as follows: the waste and old roller of 1 fatigue layer；2 are combined roller shell；3 compression roller crude products；11 internal layers；12 pairs of gold Belong to fused layers；13 outer layers.
Fig. 3 is the compression roller schematic diagram that the mode using built-up welding to process prepares；In figure, the implication of reference is as follows: 1 is tired The waste and old roller of labor layer；2 ' gradient overlay claddings；3 compression roller crude products；21 crack arrest layers；22 transition zones；23 hardstandings.
Detailed description of the invention
For making the present invention easy to understand, describe the present invention in detail below in conjunction with accompanying drawing.
As it was previously stated, the large-scale roller that the iron and steel enterprise of present stage uses is as it is shown in figure 1, the added value itself contained is non- Chang great, traditional processing mode causes the huge waste of resource；And, at present owing to lacking corresponding material and technology, adopt Directly recover original function of such roller after remanufacturing with technique for overlaying, there is certain technical problem, but inventor studies Find, remanufactured by upgrading and be used for other field after being remanufactured by such city mineral products can farthest to retain it attached Value added, it is achieved recycling economy.Inventor further study show that, after the fatigue layer on waste and old for steel industry roller surface is removed, then Use built-up welding to process or the mode of bushing process carries out repair process to the waste and old roller surface eliminating fatigue layer, one can be prepared Planting the compression roller of cement industry roll squeezer, this not only solves a large amount of waste and old roller of current steel industry and uses the tradition mode of melting down to make The added value waste problem become, reduces tradition and melts down the problem of environmental pollution that technique is brought, and can be substantially reduced cement The manufacturing cost of industry roller press squeeze roll.
Therefore, the preparation method of compression roller involved in the present invention includes:
Step B, radially removes the fatigue layer of steel industry waste and old roller work surface, prepares and eliminates the waste and old of fatigue layer Roller；
Step C, carries out surface reconditioning process to the waste and old roller eliminating fatigue layer, prepares compression roller crude product；
Step D, carries out Surface Machining process to compression roller crude product, prepares the compression roller of cement industry roll squeezer；
Wherein, described surface reconditioning processes and includes that built-up welding processes or bushing process.
According to certain embodiments of the present invention, in step C, the work surface external diameter of the waste and old roller of fatigue layer will be eliminated Compare with the work surface external diameter of the compression roller of cement industry roll squeezer: as the two difference ＜ 150mm, use built-up welding to process Mode carry out surface reconditioning process；As the two difference >=150mm, the mode of bushing process is used to carry out at surface reconditioning Reason.
In some embodiments of the invention, as it is shown on figure 3, described built-up welding processes to be included in eliminates the waste and old of fatigue layer The direct built-up welding of work surface of roller 1 forms gradient overlay cladding 2 ', prepares compression roller crude product 3；Described gradient overlay cladding is thick along compression roller Product radially include crack arrest layer 21, transition zone 22 and hardstanding 23 the most successively.
In some further embodiments of the present invention, described crack arrest layer contains following element by weight: Ni0.3%-2%, Cr 4%-9%, Si 0.3%-1%, Mn 0.3%-1.5%, Co 0.1%-0.5% and surplus Fe；Described transition zone contains following element: Cr 23%-28%, Si 0.3%-1%, Mn 0.3%-1.5%, C by weight 3%-4%, Mo 1%-2% and the Fe of surplus；Described hardstanding contains following element by weight: Cr26%-30%, Si 0.3%-1%, Mn 0.3%-1.5%, C 3%-5%, Mo 1%-2%, Nb 5%-8% and the Fe of surplus.
In the present invention, in described gradient overlay cladding, the thickness of each layer sets according to the concrete size of compression roller and waste and old roller Meter, such as, the thickness of crack arrest layer is 6-10mm；The thickness that excessively thickness of layer is total deducts the thickness of crack arrest layer and hardstanding Thickness, the under normal circumstances thickness≤35mm of excessive layer, preferably excessively the thickness of layer is 35-42mm；The thickness of hardstanding is 12- 15mm。
According to certain embodiments of the present invention, as in figure 2 it is shown, described bushing process includes:
Step M, is combined roller shell 2 with the waste and old roller 1 eliminating fatigue layer for roller core preparation；
Step N, is embedded in compound roller shell 2 on roller core 1, and combination forms the compression roller crude product 3 of cement industry roll squeezer；
Wherein, the internal diameter of described compound roller shell 2 is equal with the external diameter of roller core 1.
Described compound roller shell includes internal layer 11, bimetallic fused layers 12 and outer layer 13 the most successively；Its In, described inner layer material is 35CrMo steel；Cladding material is 20MnCr5Steel；Bimetallic fused layers material be 35CrMo steel/ 20MnCr5Steel.
In the present invention, in described compound roller shell, the thickness of layers of material is carried out according to the concrete size of compression roller and waste and old roller Design, such as, the thickness of internal layer is 300-600mm；The thickness of bimetallic fused layers is 40-45mm；The thickness of outer layer is 12- 15mm。
In the present invention, compound roller shell can be understood as complex abrasion-proof roller shell, and it uses bimetal centrifugal composite casting technique Manufacturing, it is high that composite roll set has case hardness, wear-resistant, internal layer hardness suitable, be easy to process the feature inlayed.
In the present invention, internal layer that the compound roller shell made by Embedded process is comprised the most successively, Bimetallic fused layers and outer layer actually constitute graded alloy wearing layer at roller core outer surface；And processed by built-up welding and going The gradient overlay cladding directly formed except the work surface of the waste and old roller of fatigue layer is it can be appreciated that eliminate the waste and old of fatigue layer The graded alloy wearing layer of the face surface of roller.Surface prepared by such two kinds of surface reconditioning process technique is resistance to by graded alloy What mill layer was formed remanufactures properties of product and all can meet the requirement of roller press squeeze roll.
According to the present invention, in step D, described Surface Machining process be included in compression roller crude product surface prepare hardened layer or Person carries out polishing process to compression roller crude product surface.
In some embodiments of the invention, the material of described hardened layer is high Cr material.The thickness of described hardened layer is 30-60mm。
According to the present invention, in stepb, first measured before removing the fatigue layer of the waste and old roller of steel industry radially work surface The thickness of the waste and old roller of the steel industry radially fatigue layer of work surface.
In some embodiments of the invention, such as, remove the waste and old roller of steel industry radially work surface fatigue layer it Before, the fatigue layer degree of depth of the waste and old roller of steel industry radially work surface can be confirmed by Dynamic Non-Destruction Measurement, then remove waste and old The fatigue layer of roller face surface, and according to compression roller drawing, next step processing scheme is formulated in the requirement of size.
According to the present invention, described method is additionally included in step A before step B, vertically roller work waste and old to steel industry It is machined out as face processing so that the axial length of steel industry waste and old roller work surface and the compression roller of cement industry roll squeezer Axial length identical.
In some specific embodiments of the present invention, for example, it is possible to according to the compression roller drawing of cement industry roll squeezer Requirement, selects the waste and old roller of steel industry that size is similar or close, and is used at the position beyond waste and old roller work surface vertically Machining mode is worked into the size of requirement.
It is appreciated that the compression roller for cement industry roll squeezer involved in the present invention is with steel industry based on above-mentioned Waste and old roller is raw material, by forming gradient overlay cladding or preparation in the direct built-up welding in surface of the waste and old roller eliminating fatigue layer Roller shell prepares compression roller crude product, prepares hardened layer the most again on compression roller crude product surface or grinds compression roller crude product surface Optical processing prepares.
In some embodiments of the invention, described gradient overlay cladding radially includes the most successively along compression roller crude product Crack arrest layer, transition zone and hardstanding；Wherein, described crack arrest layer contains following element by weight: Ni0.3%-2%, Cr 4%- 9%, Si 0.3%-1%, Mn 0.3%-1.5%, Co 0.1%-0.5% and the Fe of surplus；Described transition zone is by weight Containing following element: Cr 23%-28%, Si 0.3%-1%, Mn 0.3%-1.5%, C 3%-4%, Mo 1%-2% with And the Fe of surplus；Described hardstanding contains following element by weight: Cr26%-30%, Si 0.3%-1%, Mn 0.3%- 1.5%, C 3%-5%, Mo 1%-2%, Nb 5%-8% and the Fe of surplus.
In the present invention, in described gradient overlay cladding, the thickness of crack arrest layer is 6-10mm, and the thickness of excessive layer is total thickness Degree deducts the thickness of crack arrest layer and the thickness of hardstanding, the thickness≤35mm of excessive layer, and preferably excessively the thickness of layer is 35- 42mm；The thickness of hardstanding is 12-15mm.
In other embodiments of the present invention, described compound roller shell includes internal layer, double the most successively Metal alloying layer and outer layer；Wherein, described inner layer material is 35CrMo steel；Cladding material is 20MnCr5Steel；Bimetallic fused layers Material is 35CrMo steel/20MnCr5Steel.
In the present invention, in described compound roller shell, the thickness of internal layer is 300-600mm；The thickness of bimetallic fused layers is 40-45mm；The thickness of outer layer is 12-15mm.
In the other embodiment of the present invention, the material of described hardened layer is high Cr material.The thickness of described hardened layer For 30-60mm.
Heretofore described term " Dynamic Non-Destruction Measurement " refers to use X-ray non-destructive detecting device to detect waste and old roller surface The method of the defects such as crackle, pore or the fatigue layer existed.
Heretofore described term " work surface " refers to the outer surface the most from inside to outside of cylinder or roll body.
Heretofore described term " 35CrMo steel " refers to the structural alloy steel (quenching and tempering steel) that the trade mark is 35CrMo, its Execution standard is GB/T3077-1999.
Heretofore described term " 20MnCr5Steel " refer to that the trade mark is 20MnCr5Structural alloy steel (carburizing steel), it is The grade of steel introduced from Germany, its execution standard is EN 10084-2008 or EN 10084-1998 (European standard).
Heretofore described term " high Cr material " refers to rich chromium cast iron, and its execution standard is GB/T8263.
Compression roller of cement industry roll squeezer of the present invention and preparation method thereof has the advantage that
(1) the extrusion roller manufacturing cost of the cement industry roll squeezer of the present invention is substantially reduced, and this cement industry roll squeezer Service life being not less than cement industry roller press squeeze roll new product service life of extrusion roller, and stable performance, meet water The requirement of the compression roller of mud industry roll squeezer；
(2) by waste and old for steel industry roller by remanufacturing the extrusion roller producing cement industry roll squeezer, current steel is solved The added value waste problem that the mode of melting down that uses a large amount of waste and old roller of ferrum industry causes, farthest remains steel industry waste and old The added value of roller, reduces tradition and melts down the problem of environmental pollution that technique is brought.
Embodiment
For making the present invention easier to understand, further describe the present invention below in conjunction with embodiment, these Embodiment only plays illustrative effect, it is not limited to the range of application of the present invention.If the raw material used in the present invention or component All can be prepared by commercial sources or conventional method without specified otherwise, and NM specific experiment side in the following example Method, is generally carried out according to normal experiment method.
Embodiment 1:
Employing the inventive method will a size ofMaterial is Cr5Steel mill large-scale waste and old backing roll again Being manufactured into the compression roller of cement plant roll squeezer, the size of compression roller is
(1) waste and old backing roll work surface to steel mill is machined out processing vertically so that waste and old of steel mill The axial length in roll operable face is identical with the axial length of the compression roller of cement plant roll squeezer, by waste and old backing roll overall dimensions It is worked into the size of the compression roller of cement plant roll squeezer.
(2) work surface diametrically removes the fatigue layer of 60mm, prepares the waste and old backing roll eliminating fatigue layer.
(3) by the working surface external diameter of the waste and old backing roll except fatigue layerCompression roller with cement plant roll squeezer Work surface external diameterComparing, the two difference is 60mm, it is clear that the two difference ＜ 150mm, therefore uses built-up welding to process Mode carry out surface reconditioning process: as it is shown on figure 3, in the direct built-up welding of work surface of the waste and old backing roll 1 eliminating fatigue layer Form gradient overlay cladding 2 ', prepare the compression roller crude product 3 of cement plant roll squeezer.
Described gradient overlay cladding 2 ' radially includes crack arrest layer 21, transition zone 22 and hard the most successively along compression roller crude product Surface layer 23.
In above-mentioned gradient overlay cladding, the thickness of crack arrest layer is 6-10mm；Excessively the thickness of layer is 35-42mm；Hardstanding Thickness is 12-15mm.
In above-mentioned gradient overlay cladding, described crack arrest layer contains following element: Ni 0.3%-2%, Cr4%-by weight 9%, Si 0.3%-1%, Mn 0.3%-1.5%, Co 0.1%-0.5% and the Fe of surplus；Described transition zone is by weight Containing following element: Cr 23%-28%, Si 0.3%-1%, Mn 0.3%-1.5%, C 3%-4%, Mo 1%-2% with And the Fe of surplus；Described hardstanding contains following element: Cr 26%-30%, Si0.3%-1%, Mn 0.3%-by weight 1.5%, C 3%-5%, Mo 1%-2%, Nb 5%-8% and the Fe of surplus.
(4) compression roller crude product is carried out Surface Machining process, prepare hardened layer on compression roller crude product surface, prepare cement plant The compression roller of roll squeezer.
The material of above-mentioned hardened layer is high Cr material, and its thickness is 30-60mm.
After testing, result shows, uses technique for overlaying to prepare multi-gradient overlay cladding, thus obtained cement plant roll squeezer Compression roller, not only improve the shock resistance of base material but also improve the anti-wear performance on surface；The compression roller of this cement plant roll squeezer It is not less than the service life of cement industry roller press squeeze roll new product service life.
Embodiment 2
Employing the inventive method will a size ofMaterial is Cr5The large-scale waste and old backing roll of steel mill make again Causing the compression roller of cement plant roll squeezer, the size of compression roller is
(1) waste and old backing roll work surface to steel mill is machined out processing vertically so that waste and old backing roll works The axial length in face is identical with the axial length of the compression roller of cement plant roll squeezer, is worked into crowded by waste and old backing roll overall dimensions The size of pressure roller.
(2) work surface diametrically removes the fatigue layer of 60mm after removing fatigue layer, prepares and eliminates the useless of fatigue layer Old backing roll.
(3) by the working surface external diameter of the waste and old backing roll except fatigue layerThe work of the compression roller of cement plant roll squeezer Make face external diameterComparing, the two difference is 660mm, it is clear that the two difference ＞ 150mm, therefore uses bushing process Mode carries out surface reconditioning process: as in figure 2 it is shown, first use bimetallic with the waste and old backing roll 1 eliminating fatigue layer for roller core Centrifugal composite casting technology manufacture is combined roller shell 2, then is embedded on roller core 1 by compound roller shell edge 2, and combination forms cement plant roll squeezer Compression roller crude product 3, the internal diameter of described compound roller shell 2 is equal with the external diameter of roller core 1.Compound roller shell 2 is the most from inside to outside Include internal layer 11, bimetallic fused layers 12 and outer layer 13 successively.
In compound roller shell described above, the thickness of internal layer is 300-600mm；The thickness of bimetallic fused layers is 40-45mm； The thickness of outer layer is 12-15mm.
In above-mentioned compound roller shell, described inner layer material is 35CrMo steel；Cladding material is 20MnCr5Steel；Bimetallic fuses Layer material is 35CrMo steel/20MnCr5Steel.
(4) compression roller crude product is carried out Surface Machining process, compression roller crude product surface is carried out polishing process, prepare cement The compression roller of factory's roll squeezer.
After testing, result shows, owing to being the good alloy-layer of toughness inside compound roller shell, outside is wear-resistant alloy layer, The compression roller of thus obtained cement plant roll squeezer, not only improves the shock resistance of base material but also improves the wear-resisting of roller shell surface Performance；The service life of the compression roller of cement plant roll squeezer is not less than the service life of cement industry roller press squeeze roll new product.
It should be noted that, embodiment described above is only used for explaining the present invention, be not intended that the present invention is any Limit.By referring to exemplary embodiments, invention has been described, it should be appreciated that word wherein used is descriptive With explanatory vocabulary rather than limited vocabulary.Within the scope of the claims the present invention can be made by regulation Amendment, and in without departing substantially from scope and spirit of the present invention, the present invention is revised.Although the present invention described in it relates to And specific method, material and embodiment, it is not intended that the present invention is limited to wherein disclosed particular case, on the contrary, this Bright can be extended to other all methods and applications with identical function.

Claims (11)

1., for the compression roller of cement industry roll squeezer, it is with the waste and old roller of steel industry as raw material, by eliminate tired The direct built-up welding in surface of the waste and old roller of labor layer forms gradient overlay cladding or preparation roller shell prepares compression roller crude product, exists the most again Compression roller crude product surface prepare hardened layer or compression roller crude product surface is carried out polishing process prepare.
Compression roller the most according to claim 1, it is characterised in that
Described gradient overlay cladding radially includes crack arrest layer, transition zone and hardstanding the most successively along compression roller crude product；
Wherein, described crack arrest layer contain by weight following element: Ni 0.3%-2%, Cr 4%-9%, Si0.3%-1%, The Fe of Mn 0.3%-1.5%, Co 0.1%-0.5% and surplus；The thickness of the most described crack arrest layer is 6-10mm；
Described transition zone contains following element: Cr 23%-28%, Si 0.3%-1%, Mn0.3%-1.5%, C by weight 3%-4%, Mo 1%-2% and the Fe of surplus；Thickness≤the 35mm of the most described excessive layer, further preferred described excessively The thickness of layer is 35-42mm；
Described hardstanding contains following element: Cr 26%-30%, Si 0.3%-1%, Mn0.3%-1.5%, C by weight 3%-5%, Mo 1%-2%, Nb 5%-8% and the Fe of surplus；The thickness of the most described hardstanding is 12-15mm.
Compression roller the most according to claim 1 and 2, it is characterised in that
Described compound roller shell includes internal layer, bimetallic fused layers and outer layer the most successively；
Wherein, described inner layer material is 35CrMo steel；The thickness of the most described internal layer is 300-600mm；
Described cladding material is 20MnCr5Steel；The thickness of the most described outer layer is 12-15mm；
Bimetallic fused layers material is 35CrMo steel/20MnCr5Steel；The thickness of the most described bimetallic fused layers is 40-45mm.
4. according to the compression roller described in any one in claim 1-3, it is characterised in that described hardened layer material is high Cr material Matter；The thickness of the most described hardened layer is 30-60mm.
5. a preparation method for compression roller as described in any one in claim 1-4, including:
Step B, radially removes the fatigue layer of steel industry waste and old roller work surface, prepares the waste and old roller eliminating fatigue layer；
Step C, carries out surface reconditioning process to the waste and old roller eliminating fatigue layer, prepares compression roller crude product；
Step D, carries out Surface Machining process to compression roller crude product, prepares the compression roller of cement industry roll squeezer；
Wherein, described surface reconditioning processes and includes that built-up welding processes or bushing process.
Preparation method the most according to claim 5, it is characterised in that in step C, will eliminate the waste and old roller of fatigue layer The work surface external diameter of work surface external diameter and the compression roller of cement industry roll squeezer compare: as the two difference ＜ 150mm, The mode using built-up welding to process carries out surface reconditioning process；As the two difference >=150mm, the mode of bushing process is used to carry out Surface reconditioning processes.
7. according to the preparation method described in claim 5 or 6, it is characterised in that described built-up welding processes to be included in and eliminates fatigue The direct built-up welding of work surface of the waste and old roller of layer forms gradient overlay cladding；Described gradient overlay cladding along compression roller crude product radially by interior to Include crack arrest layer, transition zone and hardstanding successively outward.
8. according to the preparation method described in claim 5 or 6, it is characterised in that described bushing process includes:
Step M, is combined roller shell with the waste and old roller eliminating fatigue layer for roller core preparation；
Step N, is embedded in compound roller shell on roller core, and combination forms the compression roller crude product of cement industry roll squeezer；
Wherein, the internal diameter of described compound roller shell is equal with the external diameter of roller core.
9. according to the method described in any one in claim 5-8, it is characterised in that in step D, at described Surface Machining Reason is included in compression roller crude product surface and prepares hardened layer or compression roller crude product surface is carried out polishing process.
10., according to the method described in any one in claim 5-9, it is characterised in that in stepb, removing iron and steel row The thickness of the waste and old roller of the steel industry radially fatigue layer of work surface is first measured before the fatigue layer of the waste and old roller of industry radially work surface.
11. according to the method described in any one in claim 5-10, it is characterised in that described method is additionally included in step B Step A before, roller work surface waste and old to steel industry is machined out processing vertically so that the waste and old roller of steel industry works The axial length in face is identical with the axial length of the compression roller of cement industry roll squeezer.
CN201610563447.9A 2016-07-15 2016-07-15 Compression roller and manufacture method thereof for cement industry roll squeezer Pending CN106181217A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610563447.9A CN106181217A (en) 2016-07-15 2016-07-15 Compression roller and manufacture method thereof for cement industry roll squeezer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610563447.9A CN106181217A (en) 2016-07-15 2016-07-15 Compression roller and manufacture method thereof for cement industry roll squeezer

Publications (1)

Publication Number Publication Date
CN106181217A true CN106181217A (en) 2016-12-07

Family

ID=57474799

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610563447.9A Pending CN106181217A (en) 2016-07-15 2016-07-15 Compression roller and manufacture method thereof for cement industry roll squeezer

Country Status (1)

Country Link
CN (1) CN106181217A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110039253A (en) * 2019-04-18 2019-07-23 大唐东北电力试验研究院有限公司 A kind of middling speed roller surface restorative procedure preventing penetrating crack
CN110449838A (en) * 2019-08-15 2019-11-15 江苏科环新材料有限公司 A kind of compression roller method remanufacturing into cement roller press with useless roll

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1350890A (en) * 2000-10-26 2002-05-29 王明家 Sleeved roller with high-alloy composite sleeve and three structure layers
US20050166987A1 (en) * 2004-02-02 2005-08-04 Dai-Ichi High Frequency Co., Ltd. Clad pipe
CN200998733Y (en) * 2007-01-13 2008-01-02 燕山大学 Sleeve-inlaid supporting roller
CN102078882A (en) * 2010-11-25 2011-06-01 江苏润孚机械轧辊制造有限公司 Bushing type forged steel carrying roller
CN102744554A (en) * 2012-07-19 2012-10-24 盐城市成功机械制造有限公司 Remanufacturing technology of waste rollers in iron and steel industry
CN205237439U (en) * 2015-09-22 2016-05-18 盐城市成功机械制造有限公司 Old and useless roller refabrication system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1350890A (en) * 2000-10-26 2002-05-29 王明家 Sleeved roller with high-alloy composite sleeve and three structure layers
US20050166987A1 (en) * 2004-02-02 2005-08-04 Dai-Ichi High Frequency Co., Ltd. Clad pipe
CN200998733Y (en) * 2007-01-13 2008-01-02 燕山大学 Sleeve-inlaid supporting roller
CN102078882A (en) * 2010-11-25 2011-06-01 江苏润孚机械轧辊制造有限公司 Bushing type forged steel carrying roller
CN102744554A (en) * 2012-07-19 2012-10-24 盐城市成功机械制造有限公司 Remanufacturing technology of waste rollers in iron and steel industry
CN205237439U (en) * 2015-09-22 2016-05-18 盐城市成功机械制造有限公司 Old and useless roller refabrication system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110039253A (en) * 2019-04-18 2019-07-23 大唐东北电力试验研究院有限公司 A kind of middling speed roller surface restorative procedure preventing penetrating crack
CN110449838A (en) * 2019-08-15 2019-11-15 江苏科环新材料有限公司 A kind of compression roller method remanufacturing into cement roller press with useless roll

Similar Documents

Publication Publication Date Title
US10814382B2 (en) Special-shaped roll formed by a composite casting method and preparation process therefore
Chen et al. Behaviors of 40Cr steel treated by laser quenching on impact abrasive wear
CN205949478U (en) High -speed steel composite roll
CN102179681A (en) Pipe mold manufacturing process adopting continuous-casting blank to forge and roll rough blank periodically
CN109706448B (en) Laser repairing method for damaged roller
CN103692221B (en) A kind of preparation method of super wear-resistant composite roll
CN105441934A (en) Method for welding wearing-resistant layer by laser cladding on roller way roll surface
CN104325838A (en) High-speed rail wheel and hot-extrusion integrated forming method thereof
CN106181217A (en) Compression roller and manufacture method thereof for cement industry roll squeezer
CN101486044A (en) Method for producing restraint core rod of diameter above 330mm for tandem rolling tube
EP4105351A1 (en) Method for obtaining rolling mill rolls with a coating of tungsten carbide alloys, and resulting roll
CN102744554A (en) Remanufacturing technology of waste rollers in iron and steel industry
CN105562149A (en) Nonmetal-metal multiphase composite ultrahigh-wear resisting roll sleeve and manufacturing method thereof
CN106636976B (en) The increasing material manufacturing method of piston rod surface
CN111589874B (en) Combined roller manufactured in environment-friendly mode and manufacturing method thereof
CN107457523A (en) A kind of renovation technique of waste and old roller
Domitner et al. Thermomechanical wear testing of metal matrix composite cladding for potential application in hot rolling mills
JP6475416B2 (en) Piston ring and manufacturing method thereof
CN103056391A (en) Remanufacturing method of scrap finish rolling high speed steel working roll
CN108340123B (en) Remanufacturing method for scrapped supporting roll of plate and strip mill
CN110449838A (en) A kind of compression roller method remanufacturing into cement roller press with useless roll
CN209124874U (en) A kind of Vertical Mill wear resistant roll set
CN104741534B (en) A kind of adjustable roll shaft casting mould and manufacturing process
CN101444794A (en) Explosive-welded 3Cr13Mo/42CrMo abrasion resistant and corrosion resistant composite roll
Kushnarev et al. Modernization of railroad wheel manufacturing technology at Evraz Ntmk

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20161207

RJ01 Rejection of invention patent application after publication