CN108212704A - A kind of tungsten carbide-polyurethane composite anti-wear corrosion-inhibiting coating and preparation method thereof - Google Patents

A kind of tungsten carbide-polyurethane composite anti-wear corrosion-inhibiting coating and preparation method thereof Download PDF

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Publication number
CN108212704A
CN108212704A CN201711366945.5A CN201711366945A CN108212704A CN 108212704 A CN108212704 A CN 108212704A CN 201711366945 A CN201711366945 A CN 201711366945A CN 108212704 A CN108212704 A CN 108212704A
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polyurethane
tungsten carbide
coating
preparation
composite anti
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张瑞珠
王文博
王重洋
田伟杰
任洋洋
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North China University of Water Resources and Electric Power
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North China University of Water Resources and Electric Power
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/002—Pretreatement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/134—Plasma spraying

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

The invention discloses a kind of preparation methods of tungsten carbide polyurethane composite anti-wear corrosion-inhibiting coating, are as follows：（1）Workpiece surface pre-processes；（2）Using acieral as spraying matrix, tungsten-carbide powder is sprayed on acieral surface using plasma spraying machine；（3）The brushing bonding agent on tungsten carbide coating stops 78 hours, then spray polyurethane elastic body material, cures 3 5h.Coating surface after spray polyurethane elastic body material is highly polished, cannot be only used for general workpiece, and the erosion resistant available for precision parts is handled, and substantially prolongs the service life of parts.Polyurethane elastomer material is prepared by polyurethane and polyamide curing agent, the addition of polyamide curing agent is substantially shorter the setting time of polyurethane, 3 5h were shortened to by original 7 hours or more, reduce the content for entering impurity in the curing process, preferably ensure the property of polyurethane coating.

Description

A kind of tungsten carbide-polyurethane composite anti-wear corrosion-inhibiting coating and preparation method thereof
Technical field
The invention belongs to coating for metal surfaces preparing technical fields, and in particular to a kind of tungsten carbide-polyurethane composite anti-wear Corrosion-inhibiting coating and preparation method thereof.
Background technology
The problems such as in current industrial production due to equipment dead weight in itself, causes the energy serious waste, and industry is Develop to equipment lightweight, the advantages such as acieral is low with its density, and price is relatively cheap are widely used in each neck of industry Domain also has very good application prospect in fields such as aerospaces.But itself there are it is certain the defects of, such as hardness Difference wears no resistance, impact resistance difference etc..And wear, etching problem is prevalent in industrial every field, once material Surface generate abrasion etc. breakoff phenomenons, the performance of material will drastically decline, service life is severely impacted, increase maintenance Maintenance cost causes economic loss.And how to solve these problems become the widely applied key of acieral, the prior art is deposited It is not high in the conjugation of coating and acieral, asking for acieral wearability, anti-corrosive properties and impact resistance can not be improved simultaneously Topic.
Invention content
The present invention in view of the above shortcomings of the prior art, provide a kind of tungsten carbide-polyurethane composite anti-wear corrosion-inhibiting coating and Preparation method not only can cause acieral to be combined well with coating, while it is resistance to greatly improve acieral Mill property, anti-corrosive properties and impact resistance, extend service life.
The purpose of the present invention is what is realized in the following manner：
A kind of preparation method of tungsten carbide-polyurethane composite anti-wear corrosion-inhibiting coating, is as follows：
（1）Workpiece surface pre-processes；
（2）Using acieral as spraying matrix, tungsten-carbide powder is sprayed on acieral surface using plasma spraying machine；
（3）The brushing bonding agent on tungsten carbide coating stops 7-8 hours, then spray polyurethane elastic body material, cures 3-5h.
Step（1）Specially：Sandblasting roughening treatment.
Step（2）Middle plasma spraying machine spraying parameter is：Spray distance 75-95mm, argon flow amount 25-40L/ Min, powder feeding rate 55-60g/min, hydrogen flowing quantity 6-8L/min, spray angle is 65 ° -90 °.
Step（3）Middle bonding agent is NR-9600.
Step（3）Middle polyurethane elastomer material thickness is 1-2mm, and hardness is shore hardness 80HA.
Step（3）Middle polyurethane elastomer material is made of polyurethane and polyamide curing agent, the body of polyamide curing agent Fraction is the 4-7% of polyurethane volume.
The polyamide curing agent is polyamide curing agent 650.
Tungsten carbide-polyurethane prepared by the preparation method of tungsten carbide-polyurethane composite anti-wear corrosion-inhibiting coating as described above is multiple Close wear-and corrosion-resistant coating.
Relative to the prior art, the present invention is using plasma spraying equipment, using acieral as painted object, in big gas bar Under part, using argon gas as protective gas, the hard alloy tungsten carbide with high intensity, high-wearing feature is used（WC）As wait from Sub- sprayed on material is sprayed on acieral surface, forms the alloy-layer of one layer of metallurgical binding high with matrix conjugation.With showing There is technology to compare, ordinary oxide ceramics and metal mixture coating microhardness 650HV, and tungsten carbide coating microhardness Up to more than 1100HV.The use of air spraying bond strength is 220MP, and the plasma spraying knot under inert gas shielding atmosphere Intensity is closed up to 320MP.The use of plasma Spraying of WC-Co Coating surface smoothness is ▽ 3- ▽ 5, on tungsten carbide coating again Spraying polyurethane coating, surface smoothness is up to ▽ 7, simultaneously because polyurethane coating is elastomer coating, is applied compared to hard Layer, impact resistance improve.
Compared with other metal surface treatment technologies, the present invention also has many advantages, such as that equipment is simple, easy to operate.It prepares Composite coating material has many advantages, such as hardness height, and wearability is good, has supplied the deficiency of acieral.It is sprayed on WC coatings poly- Urethane elastomeric material improves the shock resistance of material.Coating surface after spray polyurethane elastic body material is bright and clean Degree is high, cannot be only used for general workpiece, and the erosion resistant available for precision parts is handled, and substantially prolongs making for parts Use the service life.The problems such as plasma spray coating process method of use will not make aluminum-based alloy material generate thermal deformation.Aluminium after spraying Based alloy surface composite coating dense uniform, for WC coating layer thicknesses up to 50-70 μm, polyurethane elastomer material coating layer thickness is reachable 1-2mm, hardness, wearability and impact resistance all improve a lot, and extend the service life of workpiece.Polyurethane elastomer material Material is prepared by polyurethane and polyamide curing agent, and the addition of polyamide curing agent is substantially shorter the setting time of polyurethane, 3-5h was shortened to by original 7 hours or more, reduces the content for entering impurity in the curing process, preferably ensures poly- ammonia The property of ester coating.
Specific embodiment
Polyamide curing agent used in the present invention is commercially available, purchased from Xuzhou Chinaresearch Science＆Technology Industry Co., Ltd..
Embodiment 1：
A kind of preparation method of tungsten carbide-polyurethane composite anti-wear corrosion-inhibiting coating, is as follows：
（1）Workpiece surface pre-processes；
（2）Using acieral as spraying matrix, tungsten-carbide powder is sprayed on acieral surface using plasma spraying machine；
（3）The brushing bonding agent on tungsten carbide coating stops 7-8 hours, then spray polyurethane elastic body material, cures 3-5h.
Step（1）Specially：Sandblasting roughening treatment.
Step（2）Middle plasma spraying machine spraying parameter is：Spray distance 75-95mm, argon flow amount 25-40L/ Min, powder feeding rate 55-60g/min, hydrogen flowing quantity 6-8L/min, spray angle is 65 ° -90 °.
Step（3）Middle bonding agent is NR-9600.
Step（3）Middle polyurethane elastomer material thickness is 1-2mm, and hardness is shore hardness 80HA, and polyurethane is elasticity Body compared to alloy coat, improves the impact resistance of material.
Step（3）Middle polyurethane elastomer material is made of polyurethane and polyamide curing agent, the body of polyamide curing agent Fraction is the 4-7% of polyurethane volume, and polyurethane setting time shortened to 3-5h by original 7 hours or more.
The polyamide curing agent is polyamide curing agent 650.
Tungsten carbide-polyurethane prepared by the preparation method of tungsten carbide-polyurethane composite anti-wear corrosion-inhibiting coating as described above is multiple Close wear-and corrosion-resistant coating.
Embodiment 2：
A kind of preparation method of tungsten carbide-polyurethane composite anti-wear corrosion-inhibiting coating, is as follows：
（1）Workpiece surface sandblasting roughening treatment；
（2）Using acieral as spraying matrix, tungsten-carbide powder is sprayed on acieral surface using plasma spraying machine；Deng Plasma spray machine spraying parameter is：Spray distance 75mm, argon flow amount 25L/min, powder feeding rate 55g/min, hydrogen flowing quantity 6L/min, spray angle are 65 °.
（3）NR-9600 is brushed on tungsten carbide coating, is stopped 7 hours, then spray polyurethane elastic body material, cures 3h； Polyurethane elastomer material thickness is 1mm, and hardness is shore hardness 80HA.Tungsten carbide coating and aluminum-based alloy matrix bond strength More than 320MP, the bond strength between tungsten carbide coating and polyurethane elastomer material coating is more than 25 MP, surface smoothness Up to ▽ 7.
Polyurethane elastomer material is made of polyurethane and polyamide curing agent 650, the volume fraction of polyamide curing agent 4% for polyurethane volume.
Embodiment 3：
A kind of preparation method of tungsten carbide-polyurethane composite anti-wear corrosion-inhibiting coating, is as follows：
（1）Workpiece surface sandblasting roughening treatment；
（2）Using acieral as spraying matrix, tungsten-carbide powder is sprayed on acieral surface using plasma spraying machine；Deng Plasma spray machine spraying parameter is：Spray distance 80mm, argon flow amount 30L/min, powder feeding rate 56g/min, hydrogen flowing quantity 6.5L/min, spray angle are 70 °.
（3）NR-9600 is brushed on tungsten carbide coating, is stopped 7.2 hours, then spray polyurethane elastic body material, curing 3.5h；Polyurethane elastomer material thickness is 1.2mm, and hardness is shore hardness 80HA.Tungsten carbide coating and aluminum-based alloy matrix Bond strength is more than 320MP, and the bond strength between tungsten carbide coating and polyurethane elastomer material coating is more than 23 MP, table Face finish is up to ▽ 7.
Polyurethane elastomer material is made of polyurethane and polyamide curing agent 650, the volume fraction of polyamide curing agent 5% for polyurethane volume.
Embodiment 4：
A kind of preparation method of tungsten carbide-polyurethane composite anti-wear corrosion-inhibiting coating, is as follows：
（1）Workpiece surface sandblasting roughening treatment；
（2）Using acieral as spraying matrix, tungsten-carbide powder is sprayed on acieral surface using plasma spraying machine；Deng Plasma spray machine spraying parameter is：Spray distance 85mm, argon flow amount 35L/min, powder feeding rate 58g/min, hydrogen flowing quantity 7L/min, spray angle are 75 °.
（3）NR-9600 is brushed on tungsten carbide coating, is stopped 7.5 hours, then spray polyurethane elastic body material, curing 4h；Polyurethane elastomer material thickness is 1.5mm, and hardness is shore hardness 80HA.Tungsten carbide coating and aluminum-based alloy matrix knot It closes intensity and is more than 320MP, the bond strength between tungsten carbide coating and polyurethane elastomer material coating is more than 24 MP, surface Finish is up to ▽ 7.
Polyurethane elastomer material is made of polyurethane and polyamide curing agent 650, the volume fraction of polyamide curing agent 6% for polyurethane volume.
Embodiment 5：
A kind of preparation method of tungsten carbide-polyurethane composite anti-wear corrosion-inhibiting coating, is as follows：
（1）Workpiece surface sandblasting roughening treatment；
（2）Using acieral as spraying matrix, tungsten-carbide powder is sprayed on acieral surface using plasma spraying machine；Deng Plasma spray machine spraying parameter is：Spray distance 90mm, argon flow amount 38L/min, powder feeding rate 59g/min, hydrogen flowing quantity 7.5L/min, spray angle are 80 °.
（3）NR-9600 is brushed on tungsten carbide coating, is stopped 7.8 hours, then spray polyurethane elastic body material, curing 4.5h；Polyurethane elastomer material thickness is 1.8mm, and hardness is shore hardness 80HA.Tungsten carbide coating and aluminum-based alloy matrix Bond strength is more than 320MP, and the bond strength between tungsten carbide coating and polyurethane elastomer material coating is more than 22 MP, table Face finish is up to ▽ 7.
Polyurethane elastomer material is made of polyurethane and polyamide curing agent 650, the volume fraction of polyamide curing agent 7% for polyurethane volume.
Embodiment 6：
A kind of preparation method of tungsten carbide-polyurethane composite anti-wear corrosion-inhibiting coating, is as follows：
（1）Workpiece surface sandblasting roughening treatment；
（2）Using acieral as spraying matrix, tungsten-carbide powder is sprayed on acieral surface using plasma spraying machine；Deng Plasma spray machine spraying parameter is：Spray distance 95mm, argon flow amount 40L/min, powder feeding rate 60g/min, hydrogen flowing quantity 8L/min, spray angle are 90 °.
（3）NR-9600 is brushed on tungsten carbide coating, is stopped 8 hours, then spray polyurethane elastic body material, cures 5h； Polyurethane elastomer material thickness is 2mm, and hardness is shore hardness 80HA.Tungsten carbide coating and aluminum-based alloy matrix bond strength More than 320MP, the bond strength between tungsten carbide coating and polyurethane elastomer material coating is more than 23 MP, surface smoothness Up to ▽ 7.
Polyurethane elastomer material is made of polyurethane and polyamide curing agent 650, the volume fraction of polyamide curing agent 5.5% for polyurethane volume.
Embodiment 7：
The present embodiment is dealt with objects using the acieral test block of 50mm × 50mm as plasma spraying.
The first step：Workpiece surface is pre-processed：Sandblasting is first carried out before acieral surface carries out plasma spraying Processing.
Second step：Using acieral as spraying matrix, WC powder is sprayed on acieral table using plasma spraying machine Face, coating layer thickness are 55 μm, and spray parameters are：Spray distance：75mm, argon flow amount 40L/min, powder feeding rate 50g/min, hydrogen Flow 8L/min, spray angle are 65 °.
Third walks, the brush bonding agent on coating, stops 7 hours, then sprays the polyurethane elastomer material that hardness is 80HA, Cure 3h.WC coatings and aluminum-based alloy matrix metallurgical binding, bond strength are more than 320MP, the knot between polyurethane coating and WC It closes intensity and is more than 20MP, hardness is shore hardness 80HA, and surface smoothness is up to ▽ 7, polyurethane coating thickness 1mm.
Embodiment 8：
The present embodiment is dealt with objects using the acieral test block of 50mm × 50mm as plasma spraying.
The first step：Workpiece surface is pre-processed：Sandblasting is first carried out before acieral surface carries out plasma spraying Processing.
Second step：Using acieral as spraying matrix, WC powder is sprayed on acieral table using plasma spraying machine Face, coating layer thickness are 70 μm, and spray parameters are：Spray distance：80mm, argon flow amount 35L/min, powder feeding rate 55g/min, hydrogen Flow 8L/min, spray angle are 75 °.
Third walks, the brush bonding agent on coating, stops 8 hours, then sprays the polyurethane elastomer material that hardness is 80HA, Cure 3h.WC coatings and aluminum-based alloy matrix metallurgical binding, bond strength are more than 320MP, the knot between polyurethane coating and WC It closes intensity and is more than 22MP, hardness is shore hardness 80HA, and surface smoothness is up to ▽ 7, polyurethane coating thickness 1.2mm.
Embodiment 9：
The present embodiment is dealt with objects using the acieral test block of 50mm × 50mm as plasma spraying.
The first step：Workpiece surface is pre-processed：Sandblasting is first carried out before acieral surface carries out plasma spraying Processing.
Second step：Using acieral as spraying matrix, WC powder is sprayed on acieral table using plasma spraying machine Face, coating layer thickness are 60 μm, and spray parameters are：Spray distance：85mm, argon flow amount 30L/min, powder feeding rate 55g/min, hydrogen Flow 7L/min, spray angle are 80 °.
Third walks, the brush bonding agent on coating, stops 7 hours, then sprays the polyurethane elastomer material that hardness is 80HA, Cure 5h.WC coatings and aluminum-based alloy matrix metallurgical binding, bond strength are more than 320MP, the knot between polyurethane coating and WC It closes intensity and is more than 21MP, hardness is shore hardness 80HA, and surface smoothness is up to ▽ 7, polyurethane coating thickness 1.5mm.
Embodiment 10：
The present embodiment is dealt with objects using the acieral test block of 50mm × 50mm as plasma spraying.
The first step：Workpiece surface is pre-processed：Sandblasting is first carried out before acieral surface carries out plasma spraying Processing.
Second step：Using acieral as spraying matrix, WC powder is sprayed on acieral table using plasma spraying machine Face, coating layer thickness are 50 μm, and spray parameters are：Spray distance：95mm, argon flow amount 25L/min, powder feeding rate 60g/min, hydrogen Flow 6L/min, spray angle are 90 °.
Third walks, the brush bonding agent on coating, stops 8 hours, then sprays the polyurethane elastomer material that hardness is 80HA, Cure 5h.WC coatings and aluminum-based alloy matrix metallurgical binding, bond strength are more than 320MP, the knot between polyurethane coating and WC It closes intensity and is more than 23MP, hardness is shore hardness 80HA, and surface smoothness is up to ▽ 7, polyurethane coating thickness 2mm.
Ordinary oxide ceramics and metal mixture coating microhardness 650HV, and tungsten carbide coating microhardness is reachable More than 1100HV.The use of air spraying bond strength is 220MP, and plasma spraying combines by force under inert gas shielding atmosphere Degree is up to 320MP.The use of plasma Spraying of WC-Co Coating surface smoothness is ▽ 3- ▽ 5, is sprayed again on tungsten carbide coating Polyurethane coating, surface smoothness is up to ▽ 7, simultaneously because polyurethane coating is elastomer coating, compared to hard coat, Impact resistance improves.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those skilled in the art, Under the premise of general idea of the present invention is not departed from, several changes and improvements can also be made, these should also be considered as the present invention's Protection domain.

Claims (8)

1. a kind of preparation method of tungsten carbide-polyurethane composite anti-wear corrosion-inhibiting coating, it is characterised in that：It is as follows：
（1）Workpiece surface pre-processes；
（2）Using acieral as spraying matrix, tungsten-carbide powder is sprayed on acieral surface using plasma spraying machine；
（3）The brushing bonding agent on tungsten carbide coating stops 7-8 hours, then spray polyurethane elastic body material, cures 3-5h.
2. the preparation method of tungsten carbide according to claim 1-polyurethane composite anti-wear corrosion-inhibiting coating, it is characterised in that： Step（1）Specially：Sandblasting roughening treatment.
3. the preparation method of tungsten carbide according to claim 1-polyurethane composite anti-wear corrosion-inhibiting coating, it is characterised in that： Step（2）Middle plasma spraying machine spraying parameter is：Spray distance 75-95mm, argon flow amount 25-40L/min, powder feeding rate 55-60g/min, hydrogen flowing quantity 6-8L/min, spray angle are 65 ° -90 °.
4. the preparation method of tungsten carbide according to claim 1-polyurethane composite anti-wear corrosion-inhibiting coating, it is characterised in that： Step（3）Middle bonding agent is NR-9600.
5. the preparation method of tungsten carbide according to claim 1-polyurethane composite anti-wear corrosion-inhibiting coating, it is characterised in that： Step（3）Middle polyurethane elastomer material thickness is 1-2mm, and hardness is shore hardness 80HA.
6. the preparation method of tungsten carbide according to claim 1-polyurethane composite anti-wear corrosion-inhibiting coating, it is characterised in that： Step（3）Middle polyurethane elastomer material is made of polyurethane and polyamide curing agent, and the volume fraction of polyamide curing agent is The 4-7% of polyurethane volume.
7. the preparation method of tungsten carbide according to claim 6-polyurethane composite anti-wear corrosion-inhibiting coating, it is characterised in that： The polyamide curing agent is polyamide curing agent 650.
8. carbon prepared by the preparation method of tungsten carbide-polyurethane composite anti-wear corrosion-inhibiting coating as described in claim 1-7 is any Change tungsten-polyurethane composite anti-wear corrosion-inhibiting coating.
CN201711366945.5A 2017-12-18 2017-12-18 A kind of tungsten carbide-polyurethane composite anti-wear corrosion-inhibiting coating and preparation method thereof Pending CN108212704A (en)

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CN108857595A (en) * 2018-07-03 2018-11-23 肇庆市丰驰精密金属制品有限公司 A kind of automobile engine aluminium
CN109912962A (en) * 2019-01-18 2019-06-21 华北水利水电大学 A kind of preparation method of aluminium oxide/polyurethane/graphene oxide high temperature resistant composite

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108857595A (en) * 2018-07-03 2018-11-23 肇庆市丰驰精密金属制品有限公司 A kind of automobile engine aluminium
CN109912962A (en) * 2019-01-18 2019-06-21 华北水利水电大学 A kind of preparation method of aluminium oxide/polyurethane/graphene oxide high temperature resistant composite
CN109912962B (en) * 2019-01-18 2021-07-16 华北水利水电大学 Preparation method of alumina/polyurethane/graphene oxide high-temperature-resistant composite material

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Application publication date: 20180629