CN105728724A - 3D printing repair method of chain wheel - Google Patents

3D printing repair method of chain wheel Download PDF

Info

Publication number
CN105728724A
CN105728724A CN201610158778.4A CN201610158778A CN105728724A CN 105728724 A CN105728724 A CN 105728724A CN 201610158778 A CN201610158778 A CN 201610158778A CN 105728724 A CN105728724 A CN 105728724A
Authority
CN
China
Prior art keywords
sprocket wheel
prints
restorative procedure
prime coat
chain wheel
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.)
Granted
Application number
CN201610158778.4A
Other languages
Chinese (zh)
Other versions
CN105728724B (en
Inventor
周峰
杨庆东
澹台凡亮
杨帆
何建群
陶常胜
杜学芸
宋其伟
李阳
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.)
Limited liability company of the Shandong energy heavy equipment manufacturing group
Shandong Manufacturing Co., Ltd again of energy refitting big nation of group
Original Assignee
Shandong Manufacturing Co Ltd Again Of Energy Refitting Big Nation Of Group
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 Shandong Manufacturing Co Ltd Again Of Energy Refitting Big Nation Of Group filed Critical Shandong Manufacturing Co Ltd Again Of Energy Refitting Big Nation Of Group
Priority to CN201610158778.4A priority Critical patent/CN105728724B/en
Publication of CN105728724A publication Critical patent/CN105728724A/en
Priority to AU2016253557A priority patent/AU2016253557B2/en
Application granted granted Critical
Publication of CN105728724B publication Critical patent/CN105728724B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/80—Data acquisition or data processing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/66—Treatment of workpieces or articles after build-up by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • 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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/30—Process control
    • B22F10/32—Process control of the atmosphere, e.g. composition or pressure in a building chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/30—Process control
    • B22F10/36—Process control of energy beam parameters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Powder Metallurgy (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Laser Beam Processing (AREA)

Abstract

The invention discloses a 3D printing repair method of a chain wheel. The method comprises following steps: firstly, scanning, wherein the chain wheel is scanned, and space coordinates of the chain wheel surface are obtained; secondly, model processing and code generation, wherein the space coordinates of the chain wheel surface are compared with standard space coordinates of the chain wheel surface, a three-dimensional model required to be repaired is obtained, and the three-dimensional model is sliced to generate numerical control codes; thirdly, 3D printing; wherein the initial stage is printed, power of a laser device is set to range from 1200 W to 1500 W, and after 0.5 mm to 1.5 mm is printed, the power of the laser device is set to range from 600 W to 800 W; and fourthly, aftertreatment, wherein the chain wheel obtained after 3D printing is subject to sand blasting and polishing processing. According to the repair method, the wear portion can be precisely repaired, a double-coating cladding method is adopted, it is ensured that a cladding layer and a base body are completely in metallurgical bonding, and meanwhile hardness and wear resistance of the surface of the repaired position of the chain wheel can be superior to those of a new product.

Description

The 3D of a kind of sprocket wheel prints restorative procedure
Technical field
The present invention relates to mining machinery recovery technique field, the 3D in particular to a kind of sprocket wheel prints restorative procedure.
Background technology
Drag conveyor, elevating conveyor are the most frequently used and most important parts in mining machinery, and sprocket wheel be drag conveyor, The vitals of elevating conveyor transmission.Drag conveyor, elevating conveyor haulage chain by chain wheel drive, when sprocket wheel rotates, the gear teeth are successively Engaging traction scraper chain to move continuously with chain link, thus be delivered to coal etc. specify position, sprocket shaft group is the most also wanted Bear the peak torque of whole equipment, bear pulsating load and additional load, working condition very severe.Mine flight conveyer Sprocket wheel is by chain alternate stress effect during down-hole uses, and therefore, chain nest position is also easily generated abrasion, causes the sprocket wheel can not Normally use and scrap.As the abrasion of sprocket member is not repaired, the biggest waste can be caused undoubtedly.Sprocket and chain nest portion Position is curved surface, and existing recovery technique is difficult to applicable herein, and this also considerably increases the reparation difficulty of sprocket wheel.
Summary of the invention
For above-mentioned problems of the prior art, the present invention provides the 3D of a kind of sprocket wheel to print restorative procedure, this Bright restorative procedure can accurately repair abrading section, and uses the cladding method of double coating, it is ensured that cladding layer and matrix are complete Being all metallurgical binding, hardness and the wearability on surface, sprocket wheel repair place can be better than new product simultaneously.
For achieving the above object, the present invention provides following technical scheme:
The 3D of a kind of sprocket wheel prints restorative procedure, comprises the following steps:
(1) scanning: sprocket wheel is scanned, it is thus achieved that the space coordinates of sprocket surface；
(2) models treated and code building: the sprocket surface space coordinates of the space coordinates of sprocket surface with standard is entered Row compares, and obtains the threedimensional model needing to repair, then described threedimensional model burst is generated numerical control code；
(3) 3D prints: print the starting stage, and the power setting of laser instrument is at 1200-1500W, after printing 0.5-1.5mm, The power setting of laser instrument is at 600-800W；
(4) post processing: the sprocket wheel printed through 3D is carried out sandblasting and grinding process.
Further, in described step (3), the cutter lifting speed of laser instrument is 2000-3000mm/min, and linear velocity is 600- 1800mm/min。
Further, in described step (3), the negative defocusing amount of laser instrument is 3-8mm, and powder feed rate is 10-20g/min.
Further, in described step (3), laser instrument first prints prime coat printer cover surface layer again, the hardness of described capping layer It is made up of alloy powder respectively more than the hardness of prime coat, described prime coat and capping layer.
Further, the monolayer powder thickness of described prime coat is 0.3-0.6mm, prime coat 3-5 layer altogether.
Further, alloy powder composition and the weight/mass percentage composition thereof of described prime coat is: Cr 16-23, Mn 0.4- 1.2, Si 0.5-1, Ni 23-30 and Mo 2-4, surplus is Fe.
Further, alloy powder composition and the weight/mass percentage composition thereof of described capping layer is: C 0.8-1.2, Cr 3-5, Mn 0.3-1.0, Si 0.2-0.5, Ni 8-10, Mo 3.0-5.0, V 1.0-2.0 and W 5.0-6.0, surplus is Fe.
Further, alloy powder composition and the weight/mass percentage composition thereof of described capping layer is: C 0.8-1.2, Cr 3.0- 5.0, Mn 3.0-4.0, Si 1.0-1.5, Ni 0.5-2.0, B 0.1-1.0, V 1.0-2.0 and W 8.0-10.0, surplus is Fe。
Further, in described step (3), protection gas is argon, and flow is 300m3/ h, pressure 0.3-0.5MPa.
Further, before described step (1), also include the step that the position to be repaired of sprocket wheel is carried out and is polished.
Beneficial effects of the present invention is as follows:
1,3D printing technique is applied in the reparation of sprocket wheel by the present invention, solves what curved surface many to sprocket wheel was repaired cleverly A difficult problem, and use 3D printing technique to carry out the reparation of controllable precise, both decrease the waste of repair materials, turn avoid reparation Rear large-area machining, reduces rehabilitation cost；
2, the present invention uses double coated laser cladding, and prime coat is for realizing sprocket wheel matrix and the transition of capping layer, it is ensured that It is metallurgical binding between matrix, prime coat and capping layer, solves the combination problem of high-strength alloy powder and matrix, capping layer Use high-strength alloy, promote the surface strength of sprocket wheel after repairing.
Accompanying drawing explanation
Fig. 1 is the hardness test result figure of the embodiment of the present invention three；
Fig. 2 is the hardness test result figure of the embodiment of the present invention seven；
Detailed description of the invention
In order to make those skilled in the art be more fully understood that technical scheme, below in conjunction with the accompanying drawing of the present invention, right Technical scheme carries out clear, complete description, and based on the embodiment in the application, those of ordinary skill in the art exist Other the similar embodiment obtained on the premise of not making creative work, all should belong to the scope of the application protection.
Embodiment one:
The 3D of a kind of sprocket wheel prints restorative procedure, comprises the following steps:
(1) scanning: the surface defect at position to be repaired of sprocket wheel, oxide, greasy dirt etc. are carried out, use grinder buffing Fall surface fatigue layer to exposing metallic luster, then sprocket wheel is carried out the scanning of three-dimensional, it is thus achieved that the space coordinates of sprocket surface, three Dimension scanning technique can realize non-cpntact measurement, and has the advantage that speed is fast, precision is high；
(2) models treated and code building: the sprocket surface space coordinates of the space coordinates of sprocket surface with standard is entered Row compares, and obtains the threedimensional model needing to repair, then described threedimensional model burst is generated numerical control code；
(3) 3D prints: initially with laser red light to point, determine the initial point that need to repair part；Then run program, open Protection gas, runs powder feeder, successively prints reparation.Print the starting stage, the power setting of laser instrument at 1200-1500W, After printing 0.5-1.5mm, the power setting of laser instrument, at 600-800W, this is done to prevent the dilution rate mistake of cladding layer Greatly, it is ensured that prime coat and the function of capping layer, after printing certain thickness, reduce the power of laser instrument simultaneously, the most printed Heat radiation in journey.The cutter lifting speed of laser instrument is 2000-3000mm/min, and linear velocity is 600-1800mm/min, laser instrument Negative defocusing amount is 3-8mm, and powder feed rate is 10-20g/min, and laser instrument first prints prime coat printer cover surface layer again, described capping The hardness of layer is more than the hardness of prime coat, and the monolayer powder thickness of described prime coat is 0.3-0.6mm, prime coat 3-5 layer altogether, protects Protecting gas is argon, and flow is 300m3/ h, pressure 0.3-0.5MPa, sprocket wheel matrix is 42CrMo steel；
(4) post processing: the sprocket wheel printed through 3D carries out sandblasting and grinding process, and the reparation district of processing sprocket wheel is to standard Size.3D printing technique is applied in the reparation of sprocket wheel by the present invention, solves the difficult problem that curved surface many to sprocket wheel is repaired cleverly, And use 3D printing technique to carry out the reparation of controllable precise, both decrease the waste of repair materials, big after turn avoid reparation The machining of area, reduces rehabilitation cost.
The alloy powder composition of described prime coat and weight/mass percentage composition thereof be: Cr 16-23, Mn 0.4-1.2, Si 0.5-1, Ni 23-30 and Mo 2-4, surplus is Fe.This alloy powder adds Ni, Cr of high level, utilizes the good of Ni element Good wettability promotes the friendly interface performance of cladding layer, relies on the cheap element Cr of larger proportion to improve the corrosion-resistant of cladding layer Property, another add a certain amount of Mo element so that cladding layer is provided simultaneously with good ductility and toughness, but the content of generally Cr During more than 15%, can reduce intensity and the hardness of cladding layer, when the content of Ni is bigger, the toughness of cladding layer can substantially reduce, this Composition and content in prime coat alloy powder are allocated by invention, make each component synergism, both can make alloy powder valency Lattice are cheap, cladding layer can be made again to have higher hardness and certain wearability, have both good corrosion resistance and obdurability.Also The combination between sprocket wheel matrix can be realized well.
Alloy powder composition and the weight/mass percentage composition thereof of described capping layer be: C 0.8-1.2, Cr 3-5, Mn 0.3-1, Si 0.2-0.5, Ni 8-10, Mo 3.0-5.0, V 1.0-2.0 and W 5.0-6.0, surplus is Fe.This alloy powder possesses relatively High hardness, wherein Ni, Mn, Mo can form stable austenite, possess " from hardenability ".And W, V are strong carbides forms unit Element, can form the carbide of small and dispersed, gives the intensity that cladding layer is good.Cr, Si unit under the hot conditions of laser melting coating Element can promote metal surface to generate fine and close oxide-film, improves non-oxidizability and the high temperature resistance gas attack of entirety.This The double coated laser cladding of bright employing, prime coat is for realizing sprocket wheel matrix and the transition of capping layer, it is ensured that matrix, prime coat and lid Being metallurgical binding between surface layer, solve the combination problem of high-strength alloy powder and matrix, capping layer uses high-strength alloy, Promote the surface strength of sprocket wheel after repairing.
Embodiment two:
The part identical with embodiment one repeats no more, except for the difference that, and the alloy powder composition of described prime coat and matter thereof Amount percentage composition is: Cr 16, Mn 0.4, Si 0.5, Ni 23 and Mo 2, surplus is Fe.The alloy powder of described capping layer becomes Divide and weight/mass percentage composition is: C 0.8, Cr 3, Mn 0.3, Si 0.2, Ni 8, Mo 3.0, V 1.0 and W 5.0, surplus is Fe。
Embodiment three:
The part identical with embodiment one repeats no more, except for the difference that, and the alloy powder composition of described prime coat and matter thereof Amount percentage composition is: Cr 20.4, Mn 0.82, Si 0.71, Ni 26.5 and Mo 3.3, surplus is Fe.The conjunction of described capping layer Gold powdered ingredients and weight/mass percentage composition be: C 1.0, Cr 4, Mn 0.7, Si 0.4, Ni 9, Mo 4.0, V 1.5 and W 5.5, surplus is Fe.
Chain wheel sample after the reparation obtain the present embodiment carries out microstructure test and hardness test:
Size of sample 10 × 10 × 10mm, after sand papering polishing, uses HVS-1000A digital display microhardness testers pair Sample section carries out hardness determination, takes the region of test point across matrix, land, prime coat and capping layer.For ease of observing Zonule carries out being spaced 0.1mm and takes a little, hardness number plateau region interval 0.5mm.Hardness result as it is shown in figure 1, abscissa be away from From the distance (unit is mm) of matrix surface, vertical coordinate is hardness test result, capping layer hardness average out to 660HV (58HRC), Prime coat hardness is averagely at 350HV (37HRC), and matrix hardness average out to 275HV (20-30HRC), therefore capping layer significantly improves The hardness of sprocket surface.Microstructure result display prime coat and matrix combination interface, prime coat and capping layer combination interface Clearly, smooth, in metallurgical binding.Capping layer and prime coat even tissue, zero defect.
Embodiment four:
The part identical with embodiment one repeats no more, except for the difference that, and the alloy powder composition of described prime coat and matter thereof Amount percentage composition is: Cr 23, Mn 1.2, Si 1, Ni 30 and Mo 4, surplus is Fe.The alloy powder composition of described capping layer And weight/mass percentage composition is: C 1.2, Cr 5, Mn 1, Si 0.5, Ni 10, Mo 5.0, V 2.0 and W 6.0, surplus is Fe.
Embodiment five:
The part identical with embodiment one repeats no more, except for the difference that, and the alloy powder composition of described capping layer and matter thereof Amount percentage composition be: C 0.8-1.2, Cr 3.0-5.0, Mn 3.0-4.0, Si 1.0-1.5, Ni 0.5-2.0, B 0.1-1.0, V 1.0-2.0 and W 8.0-10.0, surplus is Fe.Cr-B-W-V system of this alloy powder system multiple elements design reinforced iron-base high-temperature wearable Alloy powder, possesses higher hardness (HRC66-68), has the alloying element of strong deoxidation and slaggability containing Si, B etc., can The preferential oxide with the oxygen in coating material and matrix surface reacts the roc silicate etc. of generation low melting point and swims in molten bath table Face, thus reduce oxygen content and the slag inclusion of capping layer, improve matrix and the wettability of coating and technological forming performance.And Cr, W, V, B all can form hard particles phase, promote the overall wear resistance of capping layer, and wherein W can also strengthen the red hardness of cladding layer.
Embodiment six:
The part identical with embodiment one repeats no more, except for the difference that, and the alloy powder composition of described prime coat and matter thereof Amount percentage composition is: Cr 16, Mn 0.4, Si 0.5, Ni 23 and Mo 2, surplus is Fe.The alloy powder of described capping layer becomes Divide and weight/mass percentage composition is: C 0.8, Cr 3.0, Mn 3.0, Si 1.0, Ni 0.5, B 0.1, V 1.0 and W 8.0, remaining Amount is Fe.
Embodiment seven:
The part identical with embodiment one repeats no more, except for the difference that, and the alloy powder composition of described prime coat and matter thereof Amount percentage composition is: Cr 19.2, Mn 0.76, Si 0.72, Ni 27.4 and Mo 3.1, surplus is Fe.The conjunction of described capping layer Gold powdered ingredients and weight/mass percentage composition be: C 1.02, Cr 4.1, Mn 3.55, Si 1.23, Ni 1.21, B 0.56, V 1.52 and W 9.2, surplus is Fe.
Chain wheel sample after the reparation obtain the present embodiment carries out microstructure test and hardness test:
Size of sample 10 × 10 × 10mm, after sand papering polishing, uses HVS-1000A digital display microhardness testers pair Sample section carries out hardness determination, takes the region of test point across matrix, land, prime coat and capping layer.For ease of observing Zonule carries out being spaced 0.1mm and takes a little, hardness number plateau region interval 0.5mm.Hardness result as in figure 2 it is shown, abscissa be away from From the distance (unit is mm) of matrix surface, vertical coordinate is hardness test result, capping layer hardness average out to 900HV (68HRC), Prime coat hardness is averagely at 345HV (36.8HRC), and matrix hardness average out to 275HV (20-30HRC), therefore capping layer substantially carries The high hardness of sprocket surface.Microstructure result display prime coat is combined boundary with matrix combination interface, prime coat with capping layer Face is clear, smooth, in metallurgical binding.Capping layer and prime coat even tissue, zero defect.
Embodiment eight:
The part identical with embodiment one repeats no more, except for the difference that, and the alloy powder composition of described prime coat and matter thereof Amount percentage composition is: Cr 23, Mn 1.2, Si 1, Ni 30 and Mo 4, surplus is Fe.The alloy powder composition of described capping layer And weight/mass percentage composition is: C 1.2, Cr 5.0, Mn 4.0, Si 1.5, Ni 2.0, B 1.0, V 2.0 and W 10.0, surplus For Fe.
Contrast test one:
Use MMU-10G computer controller high temperature friction and wear testing machine detection wearability, take the embodiment of the present invention three and obtain The sprocket wheel arrived is repaired sample and as test group 2, is taken 42CrMo base as test group 1, the sprocket wheel reparation sample that embodiment seven obtains As a control group, the weight that weighs respectively cleaned, dried, as weight before experiment, carries out mill operation with 45 steel, to mill body Time controls to be 1.5h, and again cleaning, weigh weight after drying, as weight after test, every battery of tests in triplicate, draws Result is as shown in table 1.
Table 1
As can be seen from Table 1, the wear weight loss amount of matched group is much higher than the wear weight loss amount of test group, therefore, uses Sprocket wheel wearability after the alloy powder reparation of the embodiment of the present invention three and embodiment seven significantly improves, thus after extending reparation The service life of sprocket wheel.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only wraps Containing an independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should Description can also be formed those skilled in the art through appropriately combined as an entirety, the technical scheme in each embodiment May be appreciated other embodiments.

Claims (10)

1. the 3D of a sprocket wheel prints restorative procedure, it is characterised in that comprise the following steps:
(1) scanning: sprocket wheel is scanned, it is thus achieved that the space coordinates of sprocket surface；
(2) models treated and code building: the sprocket surface space coordinates of the space coordinates of sprocket surface with standard is compared Relatively, obtain the threedimensional model needing to repair, then described threedimensional model burst is generated numerical control code；
(3) 3D prints: print the starting stage, and the power setting of laser instrument is at 1200-1500W, after printing 0.5-1.5mm, and laser The power setting of device is at 600-800W；
(4) post processing: the sprocket wheel printed through 3D is carried out sandblasting and grinding process.
The 3D of sprocket wheel the most according to claim 1 prints restorative procedure, it is characterised in that in described step (3), laser instrument Cutter lifting speed be 2000-3000mm/min, linear velocity is 600-1800mm/min.
The 3D of sprocket wheel the most according to claim 1 prints restorative procedure, it is characterised in that in described step (3), laser instrument Negative defocusing amount be 3-8mm, powder feed rate is 10-20g/min.
The 3D of sprocket wheel the most according to claim 1 prints restorative procedure, it is characterised in that in described step (3), laser instrument First printing prime coat printer cover surface layer again, the hardness of described capping layer is more than the hardness of prime coat, described prime coat and capping layer It is made up of alloy powder respectively.
The 3D of sprocket wheel the most according to claim 4 prints restorative procedure, it is characterised in that the monolayer powder of described prime coat Thickness is 0.3-0.6mm, prime coat 3-5 layer altogether.
The 3D of sprocket wheel the most according to claim 5 prints restorative procedure, it is characterised in that the alloy powder of described prime coat Composition and weight/mass percentage composition thereof be: Cr 16-23, Mn 0.4-1.2, Si 0.5-1, Ni 23-30 and Mo 2-4, surplus is Fe。
The 3D of sprocket wheel the most according to claim 6 prints restorative procedure, it is characterised in that the alloy powder of described capping layer Composition and weight/mass percentage composition thereof be: C 0.8-1.2, Cr 3-5, Mn 0.3-1.0, Si 0.2-0.5, Ni 8-10, Mo 3.0- 5.0, V 1.0-2.0 and W 5.0-6.0, surplus is Fe.
The 3D of sprocket wheel the most according to claim 6 prints restorative procedure, it is characterised in that the alloy powder of described capping layer Composition and weight/mass percentage composition thereof be: C 0.8-1.2, Cr 3.0-5.0, Mn 3.0-4.0, Si 1.0-1.5, Ni 0.5-2.0, B 0.1-1.0, V 1.0-2.0 and W 8.0-10.0, surplus is Fe.
9. print restorative procedure according to the 3D of the arbitrary described sprocket wheel of claim 1-8, it is characterised in that in described step (3), Protection gas is argon, and flow is 300m3/ h, pressure 0.3-0.5MPa.
The 3D of sprocket wheel the most according to claim 9 prints restorative procedure, it is characterised in that before described step (1), also Including the step that the position to be repaired of sprocket wheel is carried out and polishes.
CN201610158778.4A 2016-03-18 2016-03-18 A kind of 3D printing restorative procedure of sprocket wheel Active CN105728724B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201610158778.4A CN105728724B (en) 2016-03-18 2016-03-18 A kind of 3D printing restorative procedure of sprocket wheel
AU2016253557A AU2016253557B2 (en) 2016-03-18 2016-11-01 A method for repairing a sprocket wheel by 3d printing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610158778.4A CN105728724B (en) 2016-03-18 2016-03-18 A kind of 3D printing restorative procedure of sprocket wheel

Publications (2)

Publication Number Publication Date
CN105728724A true CN105728724A (en) 2016-07-06
CN105728724B CN105728724B (en) 2018-11-20

Family

ID=56250959

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610158778.4A Active CN105728724B (en) 2016-03-18 2016-03-18 A kind of 3D printing restorative procedure of sprocket wheel

Country Status (2)

Country Link
CN (1) CN105728724B (en)
AU (1) AU2016253557B2 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3284551A1 (en) * 2016-08-19 2018-02-21 BAE Systems PLC Additive layer manufacturing
WO2018033701A1 (en) * 2016-08-18 2018-02-22 Bae Systems Plc Additive layer manufacturing
CN108972006A (en) * 2018-08-30 2018-12-11 大连交通大学 A kind of increase and decrease composite intelligent repair system of metal parts
CN109202378A (en) * 2018-08-30 2019-01-15 大连交通大学 A kind of increase and decrease composite intelligent restorative procedure of metal parts
CN109722664A (en) * 2019-02-18 2019-05-07 苏州大学 A kind of novel steel rail reparation alloy powder and the method for Rail Surface Abrasion reparation
CN110273155A (en) * 2019-07-31 2019-09-24 天津玛斯特车身装备技术有限公司 A kind of laser cladding reconstructing technique
CN110312669A (en) * 2017-02-22 2019-10-08 三菱电机株式会社 The prosthetic device of elevator
CN110484911A (en) * 2019-08-19 2019-11-22 山东能源重装集团大族再制造有限公司 A kind of alloy powder and preparation method thereof for laser melting coating
CN115029644A (en) * 2022-06-23 2022-09-09 西安必盛激光科技有限公司 Powder for improving self-lubricating property and heat resistance of tube core binding rod and laser cladding method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114762897A (en) * 2020-12-31 2022-07-19 中国科学院沈阳自动化研究所 Laser additive heterogeneous alloy repair method for small-thickness defects on surface of injection mold steel
CN113249718B (en) * 2021-05-13 2022-09-30 清华大学 Laser cladding method of 42CrMo gear ring and 42CrMo gear ring

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1674408A (en) * 2004-03-26 2005-09-28 沈阳大陆激光技术有限公司 Electric power generator, steam turbine rotor spindle repaired by laser and repairing method thereof
US20100287754A1 (en) * 2007-10-18 2010-11-18 Andreas Graichen Repair of a stationary rotor seal
CN101974751A (en) * 2010-07-06 2011-02-16 山东建能大族激光再制造技术有限公司 Method for repairing speed reduction gearbox hole
CN102453908A (en) * 2010-11-02 2012-05-16 沈阳大陆激光技术有限公司 Repairing technology of metallurgy TRT unit bearing cylinder
CN103911612A (en) * 2014-04-25 2014-07-09 山东大学 Cr12MoV cold stamping mold laser repair technology using cobalt-based tungsten carbide as fusion covering alloy
CN105154870A (en) * 2015-09-01 2015-12-16 广东工业大学 Metal part remanufacturing method adopting stress control and 3D printing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160389A (en) * 1990-01-24 1992-11-03 Nippon Stainless Steel Co., Ltd. Flexible tube for automotive exhaust systems
US5378427A (en) * 1991-03-13 1995-01-03 Sumitomo Metal Industries, Ltd. Corrosion-resistant alloy heat transfer tubes for heat-recovery boilers
CN102021568B (en) * 2010-07-06 2011-11-23 山东能源机械集团大族再制造有限公司 Method for laser hardening gear part
CN203419984U (en) * 2013-02-06 2014-02-05 上海高斯雷洁激光技术有限公司 Manufacturing equipment of anti-corrosion hydraulic rod

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1674408A (en) * 2004-03-26 2005-09-28 沈阳大陆激光技术有限公司 Electric power generator, steam turbine rotor spindle repaired by laser and repairing method thereof
US20100287754A1 (en) * 2007-10-18 2010-11-18 Andreas Graichen Repair of a stationary rotor seal
CN101974751A (en) * 2010-07-06 2011-02-16 山东建能大族激光再制造技术有限公司 Method for repairing speed reduction gearbox hole
CN102453908A (en) * 2010-11-02 2012-05-16 沈阳大陆激光技术有限公司 Repairing technology of metallurgy TRT unit bearing cylinder
CN103911612A (en) * 2014-04-25 2014-07-09 山东大学 Cr12MoV cold stamping mold laser repair technology using cobalt-based tungsten carbide as fusion covering alloy
CN105154870A (en) * 2015-09-01 2015-12-16 广东工业大学 Metal part remanufacturing method adopting stress control and 3D printing

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018033701A1 (en) * 2016-08-18 2018-02-22 Bae Systems Plc Additive layer manufacturing
EP3284551A1 (en) * 2016-08-19 2018-02-21 BAE Systems PLC Additive layer manufacturing
CN110312669A (en) * 2017-02-22 2019-10-08 三菱电机株式会社 The prosthetic device of elevator
CN110312669B (en) * 2017-02-22 2021-03-30 三菱电机株式会社 Elevator repairing device
CN108972006A (en) * 2018-08-30 2018-12-11 大连交通大学 A kind of increase and decrease composite intelligent repair system of metal parts
CN109202378A (en) * 2018-08-30 2019-01-15 大连交通大学 A kind of increase and decrease composite intelligent restorative procedure of metal parts
CN109202378B (en) * 2018-08-30 2021-02-05 大连交通大学 Increasing and decreasing composite intelligent repair method for metal parts
CN109722664A (en) * 2019-02-18 2019-05-07 苏州大学 A kind of novel steel rail reparation alloy powder and the method for Rail Surface Abrasion reparation
CN109722664B (en) * 2019-02-18 2021-01-01 苏州大学 Novel alloy powder for repairing steel rail and method for repairing surface damage of steel rail
CN110273155A (en) * 2019-07-31 2019-09-24 天津玛斯特车身装备技术有限公司 A kind of laser cladding reconstructing technique
CN110484911A (en) * 2019-08-19 2019-11-22 山东能源重装集团大族再制造有限公司 A kind of alloy powder and preparation method thereof for laser melting coating
CN115029644A (en) * 2022-06-23 2022-09-09 西安必盛激光科技有限公司 Powder for improving self-lubricating property and heat resistance of tube core binding rod and laser cladding method

Also Published As

Publication number Publication date
AU2016253557B2 (en) 2018-01-18
CN105728724B (en) 2018-11-20
AU2016253557A1 (en) 2017-10-05

Similar Documents

Publication Publication Date Title
CN105728724B (en) A kind of 3D printing restorative procedure of sprocket wheel
Weng et al. Wear resistance of diode laser-clad Ni/WC composite coatings at different temperatures
CN110273155A (en) A kind of laser cladding reconstructing technique
CN104588963B (en) Break repair technology for universal connecting rod of universal coupling
CN110257826A (en) Grain roll bearing position laser cladding method and laser melting coating alloy powder
CN110438487A (en) Wear-resistant corrosion-resistant laser cladding layer of a kind of micro-nano granules enhancing and preparation method thereof
CN103894757A (en) Nickle-based WC-NbC-hard-alloy-contained flux-cored wire for MIG (metal-inert gas) surfacing
CN103233224A (en) Method for preparing high-chromium wear-resistant alloy through laser cladding
CN104195550A (en) Preparation method of WC-NiSiB laser cladding material
CN109055932A (en) A kind of heavy-duty gear reparation alloy powder and its restorative procedure using waste hand alloy material
CN113832461A (en) Nickel-based alloy powder for laser cladding, ceramic particle reinforced composite powder and application
CN103817320A (en) Cobalt-based composite powder used for restoring rack of rolling mill and method for restoring rack of rolling mill
CN107236950A (en) The method for improving high temperature DRY SLIDING lower valve rod surface abrasion resistance
CN104789962B (en) A kind of scraper plate reproducing method
CN102453911B (en) Surface strengthening method for excavator bucket teeth
Zhao et al. Study on wear properties of 7075 aluminum alloy by laser alloying imitating shell surface structure with different unit spacing
CN109487262A (en) A kind of FeNi base laser melting coating doping tungsten carbide/chromium carbide compounded strengthens wear-resistant coating resistant to high temperatures and preparation method thereof
CN105349992B (en) It is a kind of to be directed to aircraft vertical pin, the laser melting coating restorative procedure of bolt piece surface
CN109112529A (en) A kind of restorative procedure of milling train downstairs backing plate
Viňáš et al. Application of hard surfacing for repairing of agricultural parts
CN106283035B (en) A kind of application of TiC/ cobalt-base alloys composite coating on elevator traction sheave
AU2016101936A4 (en) A method for repairing a sprocket wheel
CN106283032B (en) A kind of method that mining machinery hydraulic cylinder outer round surface remanufactures
CN102191496B (en) Material of guide sliding shoe of coal-winning machine and preparation method of material
CN115673314B (en) Iron-based laser cladding material and wear-resistant iron-based laser cladding layer

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C41 Transfer of patent application or patent right or utility model
TA01 Transfer of patent application right

Effective date of registration: 20161031

Address after: Tai'an City, Shandong Province town of 271222 east of Xintai new road three

Applicant after: Limited liability company of the Shandong energy heavy equipment manufacturing group

Applicant after: Shandong Manufacturing Co., Ltd again of energy refitting big nation of group

Address before: Tai'an City, Shandong Province town of 271222 east of Xintai new road three

Applicant before: Shandong Manufacturing Co., Ltd again of energy refitting big nation of group

GR01 Patent grant
GR01 Patent grant