CN110216381A - A method of the laser melting coating based on double-sided adhesive metal powder film fore-put powder repairs mill housing - Google Patents
A method of the laser melting coating based on double-sided adhesive metal powder film fore-put powder repairs mill housing Download PDFInfo
- Publication number
- CN110216381A CN110216381A CN201910530447.2A CN201910530447A CN110216381A CN 110216381 A CN110216381 A CN 110216381A CN 201910530447 A CN201910530447 A CN 201910530447A CN 110216381 A CN110216381 A CN 110216381A
- Authority
- CN
- China
- Prior art keywords
- metal powder
- double
- sided adhesive
- laser melting
- melting coating
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
- B23K26/342—Build-up welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/60—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
- B23K35/3086—Fe as the principal constituent with Cr as next major constituent containing Ni or Mn
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The method that the laser melting coating that the present invention provides a kind of based on double-sided adhesive metal powder film fore-put powder repairs mill housing, is related to field of metal surface treatment technology.The present invention obtains double-sided adhesive metal powder film the following steps are included: metal powder is sprayed in the side glue surface of double-sided adhesive and is carried out rolling processing by (1)；The component of the metal powder includes C, Cr, Ni, Mo and Fe；(2) other side glue surface of the double-sided adhesive metal powder film is bonded in the window side and notch face of mill housing to be repaired, realizes the preset of double-sided adhesive metal powder film；(3) laser melting coating is carried out to the preset double-sided adhesive metal powder film, obtains laser melting coating metal layer.Method provided by the invention greatly improves the utilization rate of metal powder, and improves laser melting coating efficiency, reduces rehabilitation cost, while being remarkably improved the service life of mill housing after reparation.
Description
Technical field
The present invention relates to field of metal surface treatment technology, in particular to a kind of to be based on double-sided adhesive metal powder film fore-put powder
Laser melting coating repair mill housing method.
Background technique
During Rolling production, most mill housing materials are normal steel casting part, bear high temperature, high pressure water for a long time
The shock and vibration of steam corrosion and adjoint acid water, oil corrosion and reciprocal roll-force, takes under so severe working condition
Labour, the window of mill housing, notch surface are easy by corrosive wear.In order to restore window size precision, usually have following several
The conventional restorative procedure of kind: 1. memorial archway is repaired by the way of being machined online；2. being carried out using metal mending liquid
It repairs；3. conventional arc surfacing reparation.These types of method all there is bond strength not enough or large area arc surfacing may cause
The problems such as memorial archway malformation, cannot effectively improve the wearability and corrosion resistance of memorial archway.
Current state-of-the-art mill housing restorative procedure is using laser melting and coating technique, and cladding laser surfaces have energy close
The features such as degree is high, and cladding quality is fine and close, and bond strength is high, and the dilution rate of microstructure of surface cladding layer is low, heat affected area is small, is repaired using laser
Compound method can solve the deficiency of above-mentioned 3 kinds of conventional methods in mill housing reparation.
It is realized in the online repair process of mill housing using laser melting and coating technique, due to facade, the presence of top surface, in cladding
Coaxial powder-feeding mode need to be used.But in opposite and top surface using in coaxial powder-feeding laser cladding process, metal powder is wasted
Seriously, the utilization rate of powder is only 40%~60%.How in the cladding process such as mill housing facade and top surface powder is improved
Utilization rate reduces rehabilitation cost, becomes one of the critical issue that urgently engineers and technicians solve.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of laser melting coatings based on double-sided adhesive metal powder film fore-put powder
The method for repairing mill housing.Method provided by the invention greatly improves the utilization rate of metal powder, and improves laser
Cladding efficiency, reduces rehabilitation cost.
In order to achieve the above-mentioned object of the invention, the present invention the following technical schemes are provided:
The present invention provides a kind of, and the laser melting coating based on double-sided adhesive metal powder film fore-put powder repairs the side of mill housing
Method, comprising the following steps:
(1) metal powder is sprayed in the side glue surface of double-sided adhesive and is carried out rolling processing, obtain double-sided adhesive metal powder
Film；
The component of the metal powder includes C, Cr, Ni, Mo and Fe；
(2) other side glue surface of the double-sided adhesive metal powder film is bonded in the window side and slot of mill housing to be repaired
On mouth face, the preset of double-sided adhesive metal powder film is realized；
(3) laser melting coating is carried out to the preset double-sided adhesive metal powder film, obtains laser melting coating metal layer.
Preferably, the mass percentage of described C, Cr, Ni, Mo and Fe in metal powder are as follows: C 0.31~0.35%,
Cr 16~17%, Ni 9~11%, Mo 1.9~2.2%, surplus Fe；The granularity of the metal powder is 350~450 mesh.
Preferably, the sprinkling is carried out using the method for electrostatic dusting.
Preferably, in the double-sided adhesive metal powder film metal powder layer with a thickness of 0.8~1mm.
It preferably, further include the window side and notch to the mill housing before the double-sided adhesive metal powder film is preset
Face is successively machined out and cleans.
Preferably, the mach unilateral processing capacity is 0.2~0.3mm.
Preferably, the hot spot of the laser melting coating is circular light spot, and the diameter of the circular light spot is 3mm；The laser
The scan power of cladding is 3000~3300W, and scanning speed is 800~1000mm/min；The overlapping rate of the laser melting coating is
30~50%.
Preferably, the laser melting coating metal layer with a thickness of 0.5~0.6mm.
Preferably, it obtains after the laser melting coating metal layer further including carrying out non-destructive testing the laser melting coating metal layer
With sanding and polishing processing.
Preferably, the stock removal of the sanding and polishing processing is 0.2~0.3mm.
The present invention provides a kind of, and the laser melting coating based on double-sided adhesive metal powder film fore-put powder repairs the side of mill housing
Method, comprising the following steps: (1) metal powder is sprayed in the side glue surface of double-sided adhesive and is carried out rolling processing, obtain two-sided
Glue metal powder film；The component of the metal powder includes C, Cr, Ni, Mo and Fe；(2) by the another of the double-sided adhesive metal powder film
Side glue surface is bonded in the window side and notch face of mill housing to be repaired, realizes the preset of double-sided adhesive metal powder film；(3) right
The preset double-sided adhesive metal powder film carries out laser melting coating, obtains laser melting coating metal layer.Method provided by the invention uses
The preset metal powder of double-sided adhesive metal powder film improves the utilization rate of metal powder, metal powder compared with the method for coaxial powder-feeding
The utilization rate at end reaches 98% or so, has reached saving material, energy-saving and environment-friendly purpose；And the method for the present invention is omitted coaxially
Dust feeder simplifies the configuration and weight of laser head, reduces equipment cost, reduces the maintenance workload of laser equipment；
Therefore, mill housing is repaired using the method for the present invention, greatly improves the laser repairing efficiency of mill housing, reduced
Rehabilitation cost.Meanwhile the metal powder that uses of the method for the present invention is remarkably improved the wearability of laser melting coating metal layer and resistance to
Corrosivity, to significantly improve the service life of mill housing after reparation.
Specific embodiment
The present invention provides a kind of, and the laser melting coating based on double-sided adhesive metal powder film fore-put powder repairs the side of mill housing
Method, comprising the following steps:
(1) metal powder is sprayed in the side glue surface of double-sided adhesive and is carried out rolling processing, obtain double-sided adhesive metal powder
Film；
The component of the metal powder includes C, Cr, Ni, Mo and Fe；
(2) other side glue surface of the double-sided adhesive metal powder film is bonded in the window side and slot of mill housing to be repaired
On mouth face, the preset of double-sided adhesive metal powder film is realized；
(3) laser melting coating is carried out to the preset double-sided adhesive metal powder film, obtains laser melting coating metal layer.
Metal powder is sprayed in the side glue surface of double-sided adhesive and is carried out rolling processing by the present invention, obtains double-sided adhesive metal
Powder film.In the present invention, the component of the metal powder includes C, Cr, Ni, Mo and Fe；Described C, Cr, Ni, Mo and Fe are in metal
Mass percentage in powder is preferred are as follows: and C 0.31~0.35%, Cr 16~17%, Ni 9~11%, Mo 1.9~
2.2%, surplus Fe, more preferably C 0.33%, Cr 16.5%, Ni 10%, Mo 2.0%, surplus Fe.In the present invention
In, the metal powder is iron(-)base powder, and wherein Fe is core element；Effect of the C in alloy-layer be improve hardness and
Intensity；The harden ability of laser melting coating metal layer can be improved in Cr, improves the wearability of alloy-layer；Deposited metals layer can be improved in Ni
Harden ability, have solution strengthening effect, refine crystal grain, improve the plasticity and toughness of metal layer；Mo can reduce other elements
Caused temper brittleness has secondary hardening effect, and the heat resistance and creep that alloy-layer can be improved are strengthened, while improving metal
The corrosion resistance of layer.The present invention preferably mixes described C, Cr, Ni, Mo and Fe, obtains the metal powder；The present invention is to described
Mixed mode does not require particularly, is uniformly mixed each component using method well known in the art.In the present invention,
The granularity of the metal powder is preferably 350~450 mesh, more preferably 400 mesh.It can be shown using metal powder of the present invention
The wearability and corrosion resistance for improving laser melting coating metal layer are write, to significantly improve the service life of mill housing after reparation.
The present invention does not require the source of the double-sided adhesive particularly, using commercially available double-sided adhesive.The present invention couple
The size of the double-sided adhesive does not require particularly, accordingly select according to the size of mill housing area to be repaired.
Metal powder is sprayed in the side glue surface of the double-sided adhesive by the present invention, i.e., removes a face paster of the double-sided adhesive backward
Metal powder is sprayed in this glue surface.In the present invention, the sprinkling is preferably carried out using the method for electrostatic dusting, to guarantee metal
The uniformity of powder sprinkling；The present invention does not require the equipment of the electrostatic dusting particularly, is set using well known in the art
It is standby.After the completion of metal powder sprinkling, the present invention carries out rolling processing to the glue surface for having sprayed metal powder.In the present invention
In, the rolling is preferably carried out using manual roll squeezer；The present invention does not require the manual roll squeezer particularly, using this
Manual roll squeezer known to field.The present invention is handled by the rolling, and the double-sided adhesive metal powder film guaranteed is rear
Continue the metal powder sprayed thereon when being bonded in mill housing not fall off.In the present invention, gained double-sided adhesive gold after rolling
The thickness for belonging to metal powder layer in powder film is preferably 0.8~1mm, more preferably 0.9mm.
After obtaining double-sided adhesive metal powder film, the other side glue surface of the double-sided adhesive metal powder film is bonded in be repaired by the present invention
In the window side and notch face of multiple mill housing, the preset of double-sided adhesive metal powder film is realized.The present invention is to the mill housing
It does not require particularly, mill housing well known in the art.Carry out double-sided adhesive metal powder film it is preset before, the present invention
Further preferably carry out a series of preliminary preparation；The preliminary preparation is particularly preferred as: to fore side memorial archway bottom surface into
Row machining, is detected to whole memorial archway in this, as benchmark and has been recorded the measurement data at each position；Then it is operating
Rack detection is carried out under the memorial archway working condition of side, and adjusts operation side frame and transmission side frame to best Shaft alignment state；Finally
Complete detection is carried out to framework window and notch, determines the resection of window and notch.
After the completion of the preliminary preparation, window side and notch face of the present invention preferably to the mill housing successively into
Row machining and cleaning.In the present invention, the mach unilateral processing capacity is preferably 0.2~0.3mm；The present invention passes through institute
State the fatigue wear layer that machining removes mill housing window face and notch face to be repaired.In the present invention, the cleaning is used
Cleaning agent is preferably dehydrated alcohol；The present invention removes the oil in mill housing window face and notch face to be repaired by the cleaning
The impurity such as dirt.
After the completion of cleaning, the other side glue surface of the double-sided adhesive metal powder film is bonded in milling train board to be repaired by the present invention
In the window side and notch face in mill, i.e., the another side paster of the double-sided adhesive metal powder film is removed, by this glue surface be bonded in
The window side of the mill housing of reparation and notch face.The present invention uses the preset metal powder of double-sided adhesive metal powder film, send with coaxial
The method of powder is compared, and the utilization rate of metal powder is improved, and the utilization rate of metal powder reaches 98% or so, has reached saving material
Material, energy-saving and environment-friendly purpose, and eliminate coaxial powder feeding apparatus；Therefore, using the preset metal powder of double-sided adhesive metal powder film
Laser cladding method mill housing is repaired, greatly improve the laser repairing efficiency of mill housing, reduce and repair
Multiple cost.
After preset double-sided adhesive metal powder film, the present invention carries out laser melting coating to the preset double-sided adhesive metal powder film, obtains
To laser melting coating metal layer (i.e. repair layer).In the present invention, the preferably circular hot spot of the hot spot of the laser melting coating, the circle
The diameter of shape hot spot is preferably 3mm；The scan power of the laser melting coating is preferably 3000~3300W, more preferably 3200W,
Scanning speed is preferably 800~1000mm/min, more preferably 900mm/min；The overlapping rate of the laser melting coating is preferably 30
~50%, more preferably 40%.In the present invention, the laser melting coating preferably uses optical fiber laser to carry out.In the present invention,
In the laser cladding process, the fusion of metal powder being bonded on double-sided adhesive, the coating metal with mill housing matrix melts
Metallurgical reaction occurs, forms the extremely low deposited metals layer of dilution rate, metallurgical bonding is formed with mill housing metallic matrix, in conjunction with strong
It spends very high；Meanwhile in laser cladding process, double-sided adhesive fusing is even gasified, i.e., after cladding, double-sided adhesive has disappeared, only
The metal powder for having it to bond above is fused together with mill housing matrix, forms deposited metals layer.In the present invention, described
The thickness of the laser melting coating metal layer obtained after laser melting coating is preferably 0.5~0.6mm.Milling train is realized using laser melting and coating technique
During memorial archway is repaired online, due to facade, the presence of top surface, coaxial powder-feeding mode need to be usually used in cladding, it is not only unrestrained
Take metal powder, while also needing the devices such as the dedicated laser head configured with coaxial powder feeding head and matched wind path, increases
The weight of laser head, and these devices are cumbersome and uncontrollable and at high price；And the present invention is because using double-sided adhesive metal powder
The laser cladding of film fore-put powder, eliminates coaxial powder feeding apparatus, to simplify the configuration and weight of laser head, reduces
Equipment cost reduces the maintenance workload of laser equipment, improves cladding efficiency.
In the present invention, after obtaining the laser melting coating metal layer, the present invention is further preferably to gained laser melting coating metal layer
It carries out non-destructive testing and sanding and polishing processing.In the present invention, the non-destructive testing preferably uses surface Dye inspectiong；This hair
It is bright that the surface Dye inspectiong is not required particularly, using method well known in the art.The present invention passes through described
Whether non-destructive testing, detection laser melting coating metal layer have the defects of crackle；After detection is qualified, sanding and polishing processing can be carried out；
If detection is unqualified, need to remove deposited metals layer, again metal powder described in cladding.In the present invention, the polishing is thrown
The stock removal of light processing is preferably 0.2~0.3mm.The present invention is molten by the laser that the sanding and polishing handles to obtain any surface finish
Metal-clad.
Below with reference to embodiment to the laser melting coating reparation provided by the invention based on double-sided adhesive metal powder film fore-put powder
The method of mill housing is described in detail, but they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1
Firstly, being machined out to fore side memorial archway bottom surface, whole memorial archway is detected in this, as benchmark；By drawing
It is required that recording the measurement data at good each position；Fore side memorial archway in the operating condition, carries out rack detection, adjustment fore side machine
Frame and transmission side frame to best Shaft alignment state；Next complete detection is carried out to framework window, notch, determines window, notch
Resection；Window, notch surface fatigue wear layer, resection 0.2mm are removed using machine-tooled method；Utilize dehydrated alcohol
Surface cleaning face, degrease equal impurity；Alloyage powder, each component are respectively as follows: C:0.31% according to mass percent,
Cr:16%, Ni:9%, Mo:1.9%, surplus Fe, the granularity of alloy powder used are 350~450 mesh；Utilize double-sided adhesive gold
Belong to the preset alloy powder of powder film, the paster of double-sided adhesive one side is removed, is uniformly sprayed metal powder using electrodusting device
It is rolled in glue surface, and using manual roll squeezer, double-sided adhesive metal powder film is made in 0.8mm in powder layer thickness control；It takes off two-sided
The double-sided adhesive metal powder film for being bonded with alloy powder is attached at memorial archway and waits for cladding surface by glue another side paster；Pass through manipulator
The optical fiber laser scanning of operation is preset in mill housing window face, the metal powder film on notch face, prepares cladding alloy
Layer, the technological parameter of optical-fiber laser are as follows: circle of the laser hot spot for diameter 3mm, scan power 3000W, scanning speed are
800mm/min, overlapping rate 30%, be made cladding alloy-layer with a thickness of 0.5mm；To cladding alloyed layer progress surface
Color flaw detection non-destructive testing；Sanding and polishing processing, stock removal 0.3mm are carried out to cladding layer.
Embodiment 2
Firstly, being machined out to fore side memorial archway bottom surface, whole memorial archway is detected in this, as benchmark；By drawing
It is required that recording the measurement data at good each position；Fore side memorial archway in the operating condition, carries out rack detection, adjustment fore side machine
Frame and transmission side frame to best Shaft alignment state；Next complete detection is carried out to framework window, notch, determines window, notch
Resection；Window, notch surface fatigue wear layer, resection 0.3mm are removed using machine-tooled method；Utilize dehydrated alcohol
Surface cleaning face, degrease equal impurity；Alloyage powder, each component are respectively as follows: C:0.35% according to mass percent,
Cr:17%, Ni:11%, Mo:2.2%, surplus Fe, the granularity of alloy powder used are 350~450 mesh；Utilize double-sided adhesive gold
Belong to the preset alloy powder of powder film, the paster of double-sided adhesive one side is removed, is uniformly sprayed metal powder using electrodusting device
It is rolled in glue surface, and using manual roll squeezer, double-sided adhesive metal powder film is made in 0.8mm in powder layer thickness control；It takes off two-sided
The double-sided adhesive metal powder film for being bonded with alloy powder is attached at memorial archway and waits for cladding surface by glue another side paster；Pass through manipulator
The optical fiber laser scanning of operation is preset in mill housing window face, the metal powder film on notch face, prepares cladding alloy
Layer, the technological parameter of optical-fiber laser are as follows: circle of the laser hot spot for diameter 3mm, scan power 3300W, scanning speed are
1000mm/min, overlapping rate 50%, be made cladding alloy-layer with a thickness of 0.5mm；Surface is carried out to cladding alloyed layer
Dye penetrant inspection non-destructive testing；Sanding and polishing processing, stock removal 0.2mm are carried out to cladding layer.
Embodiment 3
Firstly, being machined out to fore side memorial archway bottom surface, whole memorial archway is detected in this, as benchmark；By drawing
It is required that recording the measurement data at good each position；Fore side memorial archway in the operating condition, carries out rack detection, adjustment fore side machine
Frame and transmission side frame to best Shaft alignment state；Next complete detection is carried out to framework window, notch, determines window, notch
Resection；Window, notch surface fatigue wear layer, resection 0.2mm are removed using machine-tooled method；Utilize dehydrated alcohol
Surface cleaning face, degrease equal impurity；Alloyage powder, each component are respectively as follows: C:0.31% according to mass percent,
Cr:17%, Ni:9%, Mo:1.9%, surplus Fe, the granularity of alloy powder used are 350~450 mesh；Utilize double-sided adhesive gold
Belong to the preset alloy powder of powder film, the paster of double-sided adhesive one side is removed, is uniformly sprayed metal powder using electrodusting device
It is rolled in glue surface, and using manual roll squeezer, double-sided adhesive metal powder film is made in 0.8mm in powder layer thickness control；It takes off two-sided
The double-sided adhesive metal powder film for being bonded with alloy powder is attached at memorial archway and waits for cladding surface by glue another side paster；Pass through manipulator
The optical fiber laser scanning of operation is preset in mill housing window face, the metal powder film on notch face, prepares cladding alloy-layer, light
The technological parameter of fine laser are as follows: laser hot spot is the circle of diameter 3mm, scan power 3000W, scanning speed 800mm/
Min, overlapping rate 40%, be made cladding alloy-layer with a thickness of 0.5mm；Surface dye penetrant inspection is carried out to cladding alloyed layer
Non-destructive testing；Sanding and polishing processing, stock removal 0.3mm are carried out to cladding layer.
Embodiment 4
Firstly, being machined out to fore side memorial archway bottom surface, whole memorial archway is detected in this, as benchmark；By drawing
It is required that recording the measurement data at good each position；Fore side memorial archway in the operating condition, carries out rack detection, adjustment fore side machine
Frame and transmission side frame to best Shaft alignment state；Next complete detection is carried out to framework window, notch, determines window, notch
Resection；Window, notch surface fatigue wear layer, resection 0.2mm are removed using machine-tooled method；Utilize dehydrated alcohol
Surface cleaning face, degrease equal impurity；Alloyage powder, each component are respectively as follows: C:0.31% according to mass percent,
Cr:17%, Ni:10%, Mo:2.0%, surplus Fe, the granularity of alloy powder used are 350~450 mesh；Utilize double-sided adhesive gold
Belong to the preset alloy powder of powder film, the paster of double-sided adhesive one side is removed, is uniformly sprayed metal powder using electrodusting device
It is rolled in glue surface, and using manual roll squeezer, double-sided adhesive metal powder film is made in 0.8mm in powder layer thickness control；It takes off two-sided
The double-sided adhesive metal powder film for being bonded with alloy powder is attached at memorial archway and waits for cladding surface by glue another side paster；Pass through manipulator
The optical fiber laser scanning of operation is preset in mill housing window face, the metal powder film on notch face, prepares cladding alloy
Layer, the technological parameter of optical-fiber laser are as follows: circle of the laser hot spot for diameter 3mm, scan power 3200W, scanning speed are
900mm/min, overlapping rate 30%, be made cladding alloy-layer with a thickness of 0.5mm；To cladding alloyed layer progress surface
Color flaw detection non-destructive testing；Sanding and polishing processing, stock removal 0.3mm are carried out to cladding layer.
Embodiment 5
Firstly, being machined out to fore side memorial archway bottom surface, whole memorial archway is detected in this, as benchmark；By drawing
It is required that recording the measurement data at good each position；Fore side memorial archway in the operating condition, carries out rack detection, adjustment fore side machine
Frame and transmission side frame to best Shaft alignment state；Next complete detection is carried out to framework window, notch, determines window, notch
Resection；Window, notch surface fatigue wear layer, resection 0.3mm are removed using machine-tooled method；Utilize dehydrated alcohol
Surface cleaning face, degrease equal impurity；Alloyage powder, each component are respectively as follows: C:0.31% according to mass percent,
Cr:16.5%, Ni:9.5%, Mo:2.2%, surplus Fe, the granularity of alloy powder used are 350~450 mesh；Using two-sided
The preset alloy powder of glue metal powder film, the paster of double-sided adhesive one side is removed, using electrodusting device that metal powder is uniform
It is sprayed in glue surface, and is rolled using manual roll squeezer, double-sided adhesive metal powder film is made in 0.8mm in powder layer thickness control；It takes off
The double-sided adhesive metal powder film for being bonded with alloy powder is attached at memorial archway and waits for cladding surface by double-sided adhesive another side paster；Pass through machine
The optical fiber laser scanning of tool hand operation is preset in mill housing window face, the metal powder film on notch face, prepares laser melting coating
Alloy-layer, the technological parameter of optical-fiber laser are as follows: laser hot spot is the circle of diameter 3mm, scan power 3150W, scanning speed
Degree be 950mm/min, overlapping rate 35%, be made cladding alloy-layer with a thickness of 0.5mm；Table is carried out to cladding alloyed layer
Face colouring flaw detection non-destructive testing；Sanding and polishing processing, stock removal 0.2mm are carried out to cladding layer.
Embodiment 6
Firstly, being machined out to fore side memorial archway bottom surface, whole memorial archway is detected in this, as benchmark；By drawing
It is required that recording the measurement data at good each position；Fore side memorial archway in the operating condition, carries out rack detection, adjustment fore side machine
Frame and transmission side frame to best Shaft alignment state；Next complete detection is carried out to framework window, notch, determines window, notch
Resection；Window, notch surface fatigue wear layer, resection 0.2mm are removed using machine-tooled method；Utilize dehydrated alcohol
Surface cleaning face, degrease equal impurity；Alloyage powder, each component are respectively as follows: C:0.33% according to mass percent,
Cr:16%, Ni:11%, Mo:1.9%, surplus Fe, the granularity of alloy powder used are 350~450 mesh；Utilize double-sided adhesive gold
Belong to the preset alloy powder of powder film, the paster of double-sided adhesive one side is removed, is uniformly sprayed metal powder using electrodusting device
It is rolled in glue surface, and using manual roll squeezer, double-sided adhesive metal powder film is made in 0.8mm in powder layer thickness control；It takes off two-sided
The double-sided adhesive metal powder film for being bonded with alloy powder is attached at memorial archway and waits for cladding surface by glue another side paster；Pass through manipulator
The optical fiber laser scanning of operation is preset in mill housing window face, the metal powder film on notch face, prepares cladding alloy
Layer, the technological parameter of optical-fiber laser are as follows: circle of the laser hot spot for diameter 3mm, scan power 3300W, scanning speed are
1000mm/min, overlapping rate 30%, be made cladding alloy-layer with a thickness of 0.5mm；Surface is carried out to cladding alloyed layer
Dye penetrant inspection non-destructive testing；Sanding and polishing processing, stock removal 0.3mm are carried out to cladding layer.
Embodiment 7
Firstly, being machined out to fore side memorial archway bottom surface, whole memorial archway is detected in this, as benchmark；By drawing
It is required that recording the measurement data at good each position；Fore side memorial archway in the operating condition, carries out rack detection, adjustment fore side machine
Frame and transmission side frame to best Shaft alignment state；Next complete detection is carried out to framework window, notch, determines window, notch
Resection；Window, notch surface fatigue wear layer, resection 0.3mm are removed using machine-tooled method；Utilize dehydrated alcohol
Surface cleaning face, degrease equal impurity；Alloyage powder, each component are respectively as follows: C:0.35% according to mass percent,
Cr:16%, Ni:9%, Mo:2.1%, surplus Fe, the granularity of alloy powder used are 350~450 mesh；Utilize double-sided adhesive gold
Belong to the preset alloy powder of powder film, the paster of double-sided adhesive one side is removed, is uniformly sprayed metal powder using electrodusting device
It is rolled in glue surface, and using manual roll squeezer, double-sided adhesive metal powder film is made in 0.8mm in powder layer thickness control；It takes off two-sided
The double-sided adhesive metal powder film for being bonded with alloy powder is attached at memorial archway and waits for cladding surface by glue another side paster；Pass through manipulator
The optical fiber laser scanning of operation is preset in mill housing window face, the metal powder film on notch face, prepares cladding alloy
Layer, the technological parameter of optical-fiber laser are as follows: circle of the laser hot spot for diameter 3mm, scan power 3000W, scanning speed are
800mm/min, overlapping rate 50%, be made cladding alloy-layer with a thickness of 0.6mm；To cladding alloyed layer progress surface
Color flaw detection non-destructive testing；Sanding and polishing processing, stock removal 0.3mm are carried out to cladding layer.
Embodiment 8
Firstly, being machined out to fore side memorial archway bottom surface, whole memorial archway is detected in this, as benchmark；By drawing
It is required that recording the measurement data at good each position；Fore side memorial archway in the operating condition, carries out rack detection, adjustment fore side machine
Frame and transmission side frame to best Shaft alignment state；Next complete detection is carried out to framework window, notch, determines window, notch
Resection；Window, notch surface fatigue wear layer, resection 0.2mm are removed using machine-tooled method；Utilize dehydrated alcohol
Surface cleaning face, degrease equal impurity；Alloyage powder, each component are respectively as follows: C:0.35% according to mass percent,
Cr:17%, Ni:10.5%, Mo:2.0%, surplus Fe, the granularity of alloy powder used are 350~450 mesh；Utilize double-sided adhesive
The preset alloy powder of metal powder film, the paster of double-sided adhesive one side is removed, and is uniformly sprayed metal powder using electrodusting device
It is sprinkled upon in glue surface, and is rolled using manual roll squeezer, double-sided adhesive metal powder film is made in 0.8mm in powder layer thickness control；It takes off double
The double-sided adhesive metal powder film for being bonded with alloy powder is attached at memorial archway and waits for cladding surface by face glue another side paster；Pass through machinery
The optical fiber laser scanning of hand operation is preset in mill housing window face, the metal powder film on notch face, prepares laser melting coating conjunction
Layer gold, the technological parameter of optical-fiber laser are as follows: laser hot spot is the circle of diameter 3mm, scan power 3280W, scanning speed
For 1000mm/min, overlapping rate 50%, be made cladding alloy-layer with a thickness of 0.5mm；Table is carried out to cladding alloyed layer
Face colouring flaw detection non-destructive testing；Sanding and polishing processing, stock removal 0.3mm are carried out to cladding layer.
Wearability and corrosion resistance test, 1~8 gained of acetonideexample are carried out to deposited metals layer obtained by Examples 1 to 8
Deposited metals layer all has good wearability and corrosion resistance, i.e., the metal layer that cladding of the present invention obtains is anticorrosion antiwear metal
Layer, to be remarkably improved the service life of mill housing after reparation.And Examples 1 to 8 is for the utilization rate of metal powder
Reach 98% or so, has reached saving material, energy-saving and environment-friendly purpose；Coaxial powder feeding apparatus is eliminated simultaneously, is greatlyd improve
The laser repairing efficiency of mill housing, reduces rehabilitation cost.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of method that the laser melting coating based on double-sided adhesive metal powder film fore-put powder repairs mill housing, which is characterized in that
The following steps are included:
(1) metal powder is sprayed in the side glue surface of double-sided adhesive and is carried out rolling processing, obtain double-sided adhesive metal powder film；
The component of the metal powder includes C, Cr, Ni, Mo and Fe；
(2) other side glue surface of the double-sided adhesive metal powder film is bonded in window side and the notch face of mill housing to be repaired
On, realize the preset of double-sided adhesive metal powder film；
(3) laser melting coating is carried out to the preset double-sided adhesive metal powder film, obtains laser melting coating metal layer.
2. the method according to claim 1, wherein the quality of described C, Cr, Ni, Mo and Fe in metal powder
Percentage composition are as follows: C 0.31~0.35%, Cr 16~17%, Ni 9~11%, Mo 1.9~2.2%, surplus Fe；It is described
The granularity of metal powder is 350~450 mesh.
3. the method according to claim 1, wherein the sprinkling is carried out using the method for electrostatic dusting.
4. the method according to claim 1, wherein in the double-sided adhesive metal powder film metal powder layer thickness
For 0.8~1mm.
5. the method according to claim 1, wherein further including pair before the double-sided adhesive metal powder film is preset
The window side of the mill housing and notch face are successively machined out and clean.
6. according to the method described in claim 5, it is characterized in that, the mach unilateral processing capacity is 0.2~0.3mm.
7. the method according to claim 1, wherein the hot spot of the laser melting coating is circular light spot, the circle
The diameter of shape hot spot is 3mm；The scan power of the laser melting coating is 3000~3300W, and scanning speed is 800~1000mm/
min；The overlapping rate of the laser melting coating is 30~50%.
8. the method according to claim 1, wherein the laser melting coating metal layer with a thickness of 0.5~
0.6mm。
9. method according to claim 1 or 8, which is characterized in that obtain after the laser melting coating metal layer further including pair
The laser melting coating metal layer carries out non-destructive testing and sanding and polishing processing.
10. according to the method described in claim 9, it is characterized in that, the sanding and polishing processing stock removal be 0.2~
0.3mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910530447.2A CN110216381A (en) | 2019-06-19 | 2019-06-19 | A method of the laser melting coating based on double-sided adhesive metal powder film fore-put powder repairs mill housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910530447.2A CN110216381A (en) | 2019-06-19 | 2019-06-19 | A method of the laser melting coating based on double-sided adhesive metal powder film fore-put powder repairs mill housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110216381A true CN110216381A (en) | 2019-09-10 |
Family
ID=67817735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910530447.2A Pending CN110216381A (en) | 2019-06-19 | 2019-06-19 | A method of the laser melting coating based on double-sided adhesive metal powder film fore-put powder repairs mill housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110216381A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111531178A (en) * | 2020-04-14 | 2020-08-14 | 燕山大学 | Method for recycling laser cladding layer processing scraps |
| CN114574858A (en) * | 2022-03-09 | 2022-06-03 | 上海彩石激光科技有限公司 | Copper substrate and manufacturing method of silver coating on surface of copper substrate |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0328383A (en) * | 1989-06-24 | 1991-02-06 | Mazda Motor Corp | Production of cam by remelting of high alloy |
| CN102453898A (en) * | 2010-10-26 | 2012-05-16 | 沈阳大陆激光技术有限公司 | Field laser repairing method of mill housing |
| CN103741139A (en) * | 2014-01-22 | 2014-04-23 | 韶关学院 | Quick laser cladding device and cladding method of flat metal parts |
| CN103820780A (en) * | 2012-11-16 | 2014-05-28 | 吴立松 | Preparation method of wear-resistant coating on surface of roller |
| CN104250805A (en) * | 2013-06-28 | 2014-12-31 | 沈阳大陆激光成套设备有限公司 | Method for preparing wear-resistant heat-resistant coating through laser cladding of surface of guide roller by bar rolling mill |
| CN105937035A (en) * | 2016-06-21 | 2016-09-14 | 上海工程技术大学 | Laser cladding method for titanium alloy |
| CN108326509A (en) * | 2018-02-01 | 2018-07-27 | 张文秀 | A kind of quick reproducing method of conticaster roller |
| CN108342727A (en) * | 2018-03-01 | 2018-07-31 | 燕山大学 | A kind of laser strengthening method of straightening roll |
| CN109868469A (en) * | 2019-03-13 | 2019-06-11 | 沈阳大陆激光工程技术有限公司 | A kind of dusty material and its manufacturing method for laser manufacture mill housing and roll chock composite liner |
-
2019
- 2019-06-19 CN CN201910530447.2A patent/CN110216381A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0328383A (en) * | 1989-06-24 | 1991-02-06 | Mazda Motor Corp | Production of cam by remelting of high alloy |
| CN102453898A (en) * | 2010-10-26 | 2012-05-16 | 沈阳大陆激光技术有限公司 | Field laser repairing method of mill housing |
| CN103820780A (en) * | 2012-11-16 | 2014-05-28 | 吴立松 | Preparation method of wear-resistant coating on surface of roller |
| CN104250805A (en) * | 2013-06-28 | 2014-12-31 | 沈阳大陆激光成套设备有限公司 | Method for preparing wear-resistant heat-resistant coating through laser cladding of surface of guide roller by bar rolling mill |
| CN103741139A (en) * | 2014-01-22 | 2014-04-23 | 韶关学院 | Quick laser cladding device and cladding method of flat metal parts |
| CN105937035A (en) * | 2016-06-21 | 2016-09-14 | 上海工程技术大学 | Laser cladding method for titanium alloy |
| CN108326509A (en) * | 2018-02-01 | 2018-07-27 | 张文秀 | A kind of quick reproducing method of conticaster roller |
| CN108342727A (en) * | 2018-03-01 | 2018-07-31 | 燕山大学 | A kind of laser strengthening method of straightening roll |
| CN109868469A (en) * | 2019-03-13 | 2019-06-11 | 沈阳大陆激光工程技术有限公司 | A kind of dusty material and its manufacturing method for laser manufacture mill housing and roll chock composite liner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111531178A (en) * | 2020-04-14 | 2020-08-14 | 燕山大学 | Method for recycling laser cladding layer processing scraps |
| CN114574858A (en) * | 2022-03-09 | 2022-06-03 | 上海彩石激光科技有限公司 | Copper substrate and manufacturing method of silver coating on surface of copper substrate |
| CN114574858B (en) * | 2022-03-09 | 2024-03-29 | 上海彩石激光科技有限公司 | Copper base material and method for manufacturing silver-coated layer on surface of copper base material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109536955B (en) | Using laser coaxial synchronous powder feeding system method cladding mould repair technique | |
| CN101358344B (en) | Repair method of backup roll surface of steckel mill and special repair powder used thereon | |
| CN104532233B (en) | Rotor axle position laser melting coating restorative procedure | |
| CN103451650A (en) | Laser quick repair process method for large rotary machine bearing bush | |
| CN104786003A (en) | Method for repairing main bearing hole of body | |
| CN110042390B (en) | Flexible film-pasting laser cladding strengthening method for die-casting die | |
| CN109590668A (en) | A kind of steam turbine cylinder sealing surface renovation technique | |
| CN103668175B (en) | Be beneficial to the laser cladding repair technique of the thin-wall sleeve reducing built-up welding static stress and distortion | |
| CN103088336B (en) | Laser cladding method for roller | |
| CN104141129A (en) | Repairing method for threaded rod | |
| CN102732831A (en) | Laser repairing process for automobile mold | |
| CN110747458A (en) | Method for repairing crankshaft of hot-rolling fixed-width press | |
| CN110216381A (en) | A method of the laser melting coating based on double-sided adhesive metal powder film fore-put powder repairs mill housing | |
| CN102453896A (en) | Method for preparing air inlet edge surface wear-resistant anti-corrosion alloy coating of tail stage blade of steam turbine | |
| CN103820780A (en) | Preparation method of wear-resistant coating on surface of roller | |
| CN110923700A (en) | Steel surface coating, preparation method and device | |
| CN104975288A (en) | Rapid remanufacturing method for pulling-straightening roller | |
| CN110102878A (en) | The CMT and laser melting coating combined-repair method of roller mill main axle flat head sleeve inner hole | |
| CN109487265A (en) | A kind of large rotating machinery bearing shell laser broadband scanning process | |
| CN108326509A (en) | A kind of quick reproducing method of conticaster roller | |
| CN103194749A (en) | Method for preparing heat and wear resistant alloy coat on surface of roll gang | |
| CN114434086A (en) | Method for repairing surface cracks of titanium alloy thin-walled workpiece | |
| CN110453218A (en) | A kind of restorative procedure of the coalcutter planet carrier based on laser melting coating welding | |
| CN110747462A (en) | High-speed laser cladding process | |
| CN106757011A (en) | A kind of laser melting coating reproducing method of worm screw |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190910 |