CN110172692A - A kind of method of cutter head of shield machine surface recombination reinforcing selfreparing - Google Patents
A kind of method of cutter head of shield machine surface recombination reinforcing selfreparing Download PDFInfo
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- CN110172692A CN110172692A CN201910330984.2A CN201910330984A CN110172692A CN 110172692 A CN110172692 A CN 110172692A CN 201910330984 A CN201910330984 A CN 201910330984A CN 110172692 A CN110172692 A CN 110172692A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- 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
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Abstract
The present invention provides a kind of method of cutter head of shield machine surface recombination reinforcing selfreparing, by the way that the reparation powder laser cladding on cutterhead surface is carried out complex intensifying, it is kept the temperature after stress annealing, then selfreparing outer coating is obtained by the way that self-repair material is compressed on cutterhead surface, can overcomes the problems, such as that cutter head of shield machine in use frequently repair by working environment complexity, serious wear by the coating that this method obtains.
Description
Technical field
The present invention relates to cutters to repair field, and in particular to a kind of side of cutter head of shield machine surface recombination reinforcing selfreparing
Method.
Background technique
Shield machine is to integrate the multidisciplinary advanced material manufacture key technology such as materialogy, machinery, transmission, it is marked
Will the comprehensive advanced manufacture level of a country, shield machine apparatus value is larger, and relatively high, and shield machine is accounted in construction cost
Working environment is complicated in use for cutterhead, serious wear, its remaining service life is not after shield machine completes a project
When being enough to continue next project, the past usually scraps processing, but build a conservation-minded society at present, friendly environment society and
Under the theme developed a circular economy, by technologies such as composite surface treatment technology, nano surface works, specialization is repaired or is risen
The method of grade transformation meets or exceeds new product to make it remanufacture the performance of product, and saving to resource, the energy and right
The protecting effect of environment is more excellent.
Microcapsules self-repair method is current coatings field using most methods, by micro- glue containing renovation agent
Capsule is imbedded in advance in polymeric matrix or coating, and when matrix or coating material are damaged, capsules break simultaneously discharges reparation
Agent, curing reaction is crosslinked when renovation agent encounters the catalyst in matrix or coating, and damage location is realized in repair crack face
Self-regeneration.
Graphene coating has excellent high thermal conductivity, high temperature resistant, wear-resisting property, and coating attachment can be enhanced in graphene microchip
Power can make graphite ene coatings have excellent wear-resisting and scraping and wiping resistance performance, while good heat-resisting and thermal conductivity, can be cracking
The heat generated during Decentralized Friction prevents the hot-spot of coating surface and the chemical degradation that occurs；Using nanoparticle
Son enhancing composite technology makes full use of the high intensity of New Two Dimensional nano material graphene, high-modulus, high intensity and low rubs
The outstanding feature for wiping coefficient, improves graphene composite material friction and wear behavior；TiC has very high fusing point and hardness, tool
There are good heat transfer property and electric conductivity；Carbon nanotube is the material with highest specific strength that can be prepared at present, will be with
Other engineering material are that composite material is made in matrix and carbon nanotube, and composite material exhibits can be made to go out good intensity, elasticity, resist
Fatigability and isotropism bring great improvement to the performance of composite material.
Compound mineral fiber (FKF fiber) is one group and includes multi mineral fiber, and difference depending on the application, and be aided with has on a small quantity
Novel friction, the sealing material use reinforcing material of machine fiber and other enhancing compositions, reinforcing effect can meet disc brake pad
With the basic demand of drum-type brake pad, it is able to satisfy the enhancing requirement of most of rubber, sealing plate material, is able to satisfy brake block to friction
The requirement of performance, heat resistance are better than asbestos, and cost performance is high；Glass fibre belongs to inorganic silicate fibrous, has intensity height, corrosion resistant
The advantages that erosion, thermal stability good (can long-term stable work at 550 DEG C or less)；It can make after modified resin and rubber powder etc. is added
Glass fiber material has preferable adhesion and excellent friction and wear behavior.
Summary of the invention
The object of the present invention is to provide a kind of methods of cutter head of shield machine surface recombination reinforcing selfreparing, overcome shield machine
Cutterhead the problem of working environment is complicated in use, serious wear.
The technical solution of the present invention is as follows: a kind of method of cutter head of shield machine surface recombination reinforcing selfreparing；By by cutterhead
The reparation powder laser cladding on surface carries out complex intensifying, keeps the temperature after stress annealing, then by the way that self-repair material to be compressed on
Cutterhead surface obtains selfreparing outer coating, can overcome cutter head of shield machine in use by the coating that this method obtains
The problem of working environment is complicated, serious wear is frequently repaired；Specific implementation method is as follows:
(1) removing surface: except the iron rust and greasy dirt on cutterhead surface；
(2) face crack reparation: by 10 ~ 30 parts of nanoscale graphene, TiC10 ~ 30 part, 10 ~ 30 parts of carbon nanotube, titanium dioxide
10 ~ 30 parts and 10 ~ 30 parts Q235 powder of molybdenum pass through powder-feeding nozzle by vibration of ultrasonic wave after mixing and spray to cutterhead fray,
It is filled with protective gas and is warming up to 3200 DEG C ~ 3500 DEG C, laser power is 1500 ~ 2000W, 100 ~ 150um of spot diameter, laser
Heat treatment time is 1 ~ 1.5s, under laser irradiation, carries out one or many laser melting coatings to the cutterhead fray, makes described
The surface of cutterhead fray forms laser melting coating graphene-TiC- carbon nanotube-molybdenum dioxide-Q235 microplate layer；Cutterhead is cooling
To after room temperature, by induction heating to 620 DEG C ~ 640 DEG C progress stress relief annealings, 2 ~ 3h is kept the temperature, room temperature is then air-cooled to；
(3) phenolic resin modified: by nanoscale SiO210 ~ 30 parts, TiO210 ~ 30 parts, Al2O310 ~ 30 parts and 10 ~ 30 parts of ZnO
Phenolic resin is added in powder, and modified nano phenolic resin is made after mixing by vibration of ultrasonic wave；
(4) prepared by outer coating: by 20 ~ 30 parts of modified nano phenolic resin, 20 ~ 30 parts of FKF fiber, 3 ~ 6 parts of glass fibre, carbon
3 ~ 6 parts, 30 ~ 40 parts 3 ~ 6 parts of fiber, 3 ~ 6 parts of barite, 3 ~ 6 parts of chromite powder, 3 ~ 6 parts of Fluorspar Powder, Alpha-alumina KH-550 idols
Connection agent and 30 ~ 40 parts of uramit coating dicyclopentadiene (DCPD) microcapsules are uniformly mixed to obtain by vibration of ultrasonic wave
The selfreparing outer coating material of FKF composite fibre friction enhancing；
(5) outer coating adheres to: the selfreparing outer coating material of the FKF composite fibre prepared friction enhancing is passed through spraying
On the laser melting coating graphene-TiC- carbon nanotube-molybdenum dioxide-Q235 microplate layer of machine spraying after repair, then pass through pressure
Machine processed compacting, 160 ~ 170 DEG C of press temperature, 14 ~ 17MPa of pressing pressure, 70 ~ 80s/mm of heat-insulation pressure keeping, it is to slowly warm up to 200 ~
220 DEG C, then keep 8 ~ 10h；
(6) reconditioning: the outer coating being attached on cutterhead is finally subjected to reconditioning processing according to cutterhead size, is finally examined
Up to a kind of material of cutter head of shield machine surface recombination reinforcing selfreparing after qualification.
Beneficial effects of the present invention:
The present invention provides a kind of cutter head of shield machine surface recombination reinforcing and the methods of selfreparing, and overcoming cutter head of shield machine makes
With the complexity of working environment in the process, serious wear, frequent problem is repaired, its remaining military service after shield machine completes a project
When service life is not enough to continue next project, by technologies such as composite surface treatment technology, nano surface works, specialization is repaired
Or the method for upgrading meets or exceeds new product come the performance for making it remanufacture product, avoids and scraps processing, to resource,
The saving of the energy and significant to the protecting effect of environment.
The microcapsules of raw materials for production addition of the present invention are that the microcapsules containing renovation agent are imbedded at polymeric matrix in advance
Or in coating, when matrix or coating material are damaged when generating micro-crack, it is broken that the stress concentration of crack tip will lead to capsule
Renovation agent is split and discharged, crosslinks curing reaction when renovation agent encounters the catalyst in matrix or coating, repair crack face,
Realize the self-regeneration of damage location.
Graphene-TiC- carbon nanotube-molybdenum dioxide-Q235 powder coating of raw materials for production addition of the present invention has excellent
High thermal conductivity, high temperature resistant, wear-resisting property, coating adhesion, while good heat-resisting and thermal conductivity can be enhanced, can be cracking
The heat generated during Decentralized Friction prevents the hot-spot of coating surface and the chemical degradation that occurs；Using nanoparticle
Son enhancing composite technology makes full use of the high intensity of New Two Dimensional nano material graphene, high-modulus, high intensity and low rubs
The outstanding feature for wiping coefficient improves graphene-TiC- carbon nanotube-molybdenum dioxide-Q235 coating frictional strength, hardness, resists
The performance of fatigability and abrasion；
The nano material modified phenolic resins of raw materials for production addition of the present invention, by increasing nanoscale in traditional phenolic resin
SiO2、TiO2、Al2O3And ZnO and compound mineral fiber, glass fibre, carbon fiber select barite, chromium as reinforcement
Iron Ore Powder, fluorite, calcium carbonate, Alpha-alumina material make friction class filler, and KH-550 coupling agent makees affinity agent, nano modification phenolic aldehyde
Resin not only can be such that each component of friction material is organically bonded together, and assign material certain structural strength, and right
The friction and wear behavior of material, especially high temperature friction and wear function have a significant impact, and have good anti-pressure ability.
Specific embodiment
With reference to embodiment, technical solution of the present invention is described in further detail
Embodiment 1:
A kind of cutter head of shield machine surface recombination reinforcing and the method for selfreparing, comprising the following steps:
(1) removing surface: except the iron rust and greasy dirt on cutterhead surface；
(2) face crack reparation: by 10 parts of nanoscale nanoscale graphene, TiC10 parts, 10 parts of carbon nanotube, titanium dioxide
10 parts and 10 parts Q235 powder of molybdenum pass through powder-feeding nozzle to cutterhead fray by vibration of ultrasonic wave after mixing, are filled with protection
Gas is simultaneously warming up to 3200 DEG C, laser power 1500W, spot diameter 100um, and the laser heat treatment time is 1s, shines in laser
It penetrates down, one or many laser melting coatings is carried out to the cutterhead fray, so that the surface of the cutterhead fray is formed laser molten
Cover graphene-TiC- carbon nanotube-molybdenum dioxide-Q235 microplate layer；After cutterhead is cooled to room temperature, pass through induction heating to 620
DEG C carry out stress relief annealing, keep the temperature 2h, be then air-cooled to room temperature；
(3) phenolic resin modified: by nanoscale SiO210 parts, TiO210 parts, Al2O310 parts and 10 parts of ZnO powders addition phenolic aldehyde
Modified nano phenolic resin is made by vibration of ultrasonic wave in resin after mixing；
(4) outer coating prepare: by 20 parts of modified nano phenolic resin, 20 parts of FKF fiber, 3 parts of glass fibre, 3 parts of carbon fiber,
3 parts of barite, 3 parts of chromite powder, 3 parts of Fluorspar Powder, 3 parts, 30 parts KH-550 coupling agents of Alpha-alumina and 30 parts of uramit packets
Cover dicyclopentadiene (DCPD) microcapsules by vibration of ultrasonic wave be uniformly mixed to obtain the friction enhancing of FKF composite fibre from
Repair outer coating material；
(5) outer coating adheres to: the selfreparing outer coating material of the FKF composite fibre prepared friction enhancing is passed through spraying
On the laser melting coating graphene-TiC- carbon nanotube-molybdenum dioxide-Q235 microplate layer of machine spraying after repair, then pass through pressure
Machine compacting processed, 160 DEG C of press temperature, pressing pressure 14MPa, heat-insulation pressure keeping 70s/mm are to slowly warm up to 200 DEG C, then keep
8h；
(6) reconditioning: the outer coating being attached on cutterhead is finally subjected to reconditioning processing according to cutterhead size, is finally examined
Up to a kind of material of cutter head of shield machine surface recombination reinforcing selfreparing after qualification.
Embodiment 2:
(1) removing surface: except the iron rust and greasy dirt on cutterhead surface；
(2) face crack reparation: by 20 parts of nanoscale nanoscale graphene, TiC20 parts, 20 parts of carbon nanotube, titanium dioxide
20 parts and 20 parts Q235 powder of molybdenum pass through powder-feeding nozzle by vibration of ultrasonic wave after mixing and spray to cutterhead fray, are filled with guarantor
Shield gas is simultaneously warming up to 3300 DEG C, laser power 1700W, spot diameter 130um, and the laser heat treatment time is 1.2s, is swashing
Under light irradiation, one or many laser melting coatings are carried out to the cutterhead fray, form the surface of the cutterhead fray sharp
Light cladding graphene-TiC- carbon nanotube-molybdenum dioxide-Q235 microplate layer；After cutterhead is cooled to room temperature, arrived by induction heating
620 DEG C ~ 640 DEG C progress stress relief annealings keep the temperature 2.5h, are then air-cooled to room temperature；
(3) phenolic resin modified: by nanoscale SiO220 parts, TiO220 parts, Al2O320 parts and 20 parts of ZnO powders addition phenolic aldehyde
Modified nano phenolic resin is made by vibration of ultrasonic wave in resin after mixing；
(4) outer coating prepare: by 25 parts of modified nano phenolic resin, 25 parts of FKF fiber, 4 parts of glass fibre, 4 parts of carbon fiber,
4 parts of barite, 4 parts of chromite powder, 4 parts of Fluorspar Powder, 4 parts, 35 parts KH-550 coupling agents of Alpha-alumina and 35 parts of uramit packets
Cover dicyclopentadiene (DCPD) microcapsules by vibration of ultrasonic wave be uniformly mixed to obtain the friction enhancing of FKF composite fibre from
Repair outer coating material；
(5) outer coating adheres to: the selfreparing outer coating material of the FKF composite fibre prepared friction enhancing is passed through spraying
On the laser melting coating graphene-TiC- carbon nanotube-molybdenum dioxide-Q235 microplate layer of machine spraying after repair, then pass through pressure
Machine compacting processed, 165 DEG C of press temperature, pressing pressure 15MPa, heat-insulation pressure keeping 75s/mm are to slowly warm up to 210 DEG C, then keep
9h；
(6) reconditioning: the outer coating being attached on cutterhead is finally subjected to reconditioning processing according to cutterhead size, is finally examined
Up to a kind of material of cutter head of shield machine surface recombination reinforcing selfreparing after qualification.
Embodiment 3:
(1) removing surface: except the iron rust and greasy dirt on cutterhead surface；
(2) face crack reparation: by 30 parts of nanoscale nanoscale graphene, TiC30 parts, 30 parts of carbon nanotube, titanium dioxide
30 parts and 30 parts Q235 powder of molybdenum pass through powder-feeding nozzle by vibration of ultrasonic wave after mixing and spray to cutterhead fray, are filled with guarantor
Shield gas is simultaneously warming up to 3500 DEG C, laser power 2000W, spot diameter 150um, and the laser heat treatment time is 1.5s, is swashing
Under light irradiation, one or many laser melting coatings are carried out to the cutterhead fray, form the surface of the cutterhead fray sharp
Light cladding graphene-TiC- carbon nanotube-molybdenum dioxide-Q235 microplate layer；After cutterhead is cooled to room temperature, arrived by induction heating
620 DEG C ~ 640 DEG C progress stress relief annealings keep the temperature 3h, are then air-cooled to room temperature；
(3) phenolic resin modified: by nanoscale SiO230 parts, TiO230 parts, Al2O330 parts and 30 parts of ZnO powders addition phenolic aldehyde
Modified nano phenolic resin is made by vibration of ultrasonic wave in resin after mixing；
(4) outer coating prepare: by 30 parts of modified nano phenolic resin, 30 parts of FKF fiber, 6 parts of glass fibre, 6 parts of carbon fiber,
6 parts of barite, 6 parts of chromite powder, 6 parts of Fluorspar Powder, 6 parts, 40 parts KH-550 coupling agents of Alpha-alumina and 40 parts of uramit packets
Cover dicyclopentadiene (DCPD) microcapsules by vibration of ultrasonic wave be uniformly mixed to obtain the friction enhancing of FKF composite fibre from
Repair outer coating material；
(5) outer coating adheres to: the selfreparing outer coating material of the FKF composite fibre prepared friction enhancing is passed through spraying
On the laser melting coating graphene-TiC- carbon nanotube-molybdenum dioxide-Q235 microplate layer of machine spraying after repair, then pass through pressure
Machine compacting processed, 170 DEG C of press temperature, pressing pressure 17MPa, heat-insulation pressure keeping 80s/mm are to slowly warm up to 220 DEG C, then keep
10h；
(6) reconditioning: the outer coating being attached on cutterhead is finally subjected to reconditioning processing according to cutterhead size, is finally examined
Up to a kind of material of cutter head of shield machine surface recombination reinforcing selfreparing after qualification.
Claims (5)
1. a kind of method of cutter head of shield machine surface recombination reinforcing selfreparing, it is characterised in that by by the reparation powder on cutterhead surface
Last laser melting coating carries out complex intensifying, keeps the temperature after stress annealing, is then obtained by the way that self-repair material is compressed on cutterhead surface
Selfreparing outer coating, capable of overcoming cutter head of shield machine by the coating that this method obtains, working environment is multiple in use
The problem of miscellaneous, serious wear is frequently repaired；Its step of preparation process is: (a) removing the iron rust and greasy dirt on cutterhead surface；(b) will
Nanoscale graphene, TiC, carbon nanotube, molybdenum dioxide and Q235 powder are passed through after mixing by vibration of ultrasonic wave to be sent
Powder nozzle sprays to cutterhead fray, is filled with protective gas and is warming up to 3200 DEG C ~ 3500 DEG C, and laser power is 1500 ~ 2000W,
100 ~ 150um of spot diameter, the laser heat treatment time is 1 ~ 1.5s, under laser irradiation, carries out one to the cutterhead fray
Secondary or multiple laser melting coating makes the surface of the cutterhead fray form graphene-TiC- carbon nanotube-molybdenum dioxide-Q235
Microplate layer；After cutterhead is cooled to room temperature, stress relief annealing is carried out by induction heating, 2 ~ 3h is kept the temperature, is then air-cooled to room temperature；
(c) phenolic resin is modified, by nanoscale SiO2、TiO2、Al2O3Phenolic resin is added with ZnO powder, passes through ultrasound
Modified nano phenolic resin is made in wave vibration after mixing；(d) by modified nano phenolic resin, FKF fiber, glass fibre,
Carbon fiber, barite, chromite powder, Fluorspar Powder, Alpha-alumina, KH-550 coupling agent and uramit coating dicyclopentadiene
(DCPD) uniform microcapsule is mixed to get a kind of selfreparing outer coating material of FKF composite fibre friction enhancing.
2. a kind of method of cutter head of shield machine surface recombination reinforcing selfreparing according to claim 1, it is characterised in that logical
Cross this method acquisition coating ingredient are as follows: 10 ~ 30 parts of nanoscale graphene, TiC10 ~ 30 part, 10 ~ 30 parts of carbon nanotube,
Molybdenum dioxide 10 ~ 30 parts and 10 ~ 30 parts Q235 powder, nanoscale SiO210 ~ 30 parts, TiO210 ~ 30 parts, Al2O310 ~ 30 parts
With 10 ~ 30 parts of ZnO powders, 20 ~ 30 parts of modified nano phenolic resin, 20 ~ 30 parts of FKF fiber, 3 ~ 6 parts of glass fibre, carbon fiber 3
~ 6 parts, 3 ~ 6 parts of barite, 3 ~ 6 parts of chromite powder, 3 ~ 6 parts, 30 ~ 40 parts 3 ~ 6 parts of Fluorspar Powder, Alpha-alumina KH-550 coupling agents
With 30 ~ 40 parts of uramit coating dicyclopentadiene (DCPD) microcapsules.
3. the method for a kind of cutter head of shield machine surface recombination reinforcing selfreparing according to claim 1, it is characterized in that: this hair
The microcapsules of bright raw materials for production addition are that the microcapsules containing renovation agent are imbedded in advance in polymeric matrix or coating, work as base
Body or coating material are damaged when generating micro-crack, and the stress concentration of crack tip will lead to capsules break and discharge reparation
Agent, curing reaction is crosslinked when renovation agent encounters the catalyst in matrix or coating, and damage location is realized in repair crack face
Self-regeneration.
4. the method for a kind of cutter head of shield machine surface recombination reinforcing selfreparing according to claim 1, it is characterized in that: this hair
Graphene-TiC- carbon nanotube-molybdenum dioxide-Q235 coating of bright raw materials for production addition have excellent high thermal conductivity, high temperature resistant,
Coating adhesion, while good heat-resisting and thermal conductivity can be enhanced in wear-resisting property, can produce during cracking Decentralized Friction
Raw heat prevents the hot-spot of coating surface and the chemical degradation that occurs；Composite material skill is enhanced using nanoparticle
Art makes full use of the prominent special of the high intensity of New Two Dimensional nano material graphene, high-modulus, high intensity and low-friction coefficient
Point improves graphene-TiC- carbon nanotube-molybdenum dioxide-Q235 coating frictional strength, hardness, fatigue resistance and abrasion
Performance.
5. the method for a kind of cutter head of shield machine surface recombination reinforcing selfreparing according to claim 1, it is characterized in that: this hair
The nano material modified phenolic resins of bright raw materials for production addition, by increasing nanoscale SiO in traditional phenolic resin2、
TiO2、Al2O3And ZnO and compound mineral fiber, glass fibre, carbon fiber select barite, chromite as reinforcement
Powder, fluorite, calcium carbonate, Alpha-alumina material make friction class filler, and KH-550 coupling agent makees affinity agent, modified nano phenolic resin
Not only each component of friction material can be made organically to be bonded together, assign material certain structural strength, and to material
Friction and wear behavior, especially high temperature friction and wear function has a significant impact, and has good anti-pressure ability.
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| CN201910330984.2A CN110172692B (en) | 2019-04-23 | 2019-04-23 | Method for compositely strengthening self-repairing of surface of cutter head of shield machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115216763A (en) * | 2022-07-15 | 2022-10-21 | 武汉东臻科技有限公司 | Wear-resistant ceramic coating material, wear-resistant coating and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115216763A (en) * | 2022-07-15 | 2022-10-21 | 武汉东臻科技有限公司 | Wear-resistant ceramic coating material, wear-resistant coating and preparation method thereof |
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