CN106513288A - Anti-corrosion and anti-abrasion method of hydraulic turbine blade organic coating - Google Patents

Anti-corrosion and anti-abrasion method of hydraulic turbine blade organic coating Download PDF

Info

Publication number
CN106513288A
CN106513288A CN201611011905.4A CN201611011905A CN106513288A CN 106513288 A CN106513288 A CN 106513288A CN 201611011905 A CN201611011905 A CN 201611011905A CN 106513288 A CN106513288 A CN 106513288A
Authority
CN
China
Prior art keywords
epoxy resin
liquid rubber
blade surface
corrosion
modified epoxy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611011905.4A
Other languages
Chinese (zh)
Inventor
张达明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Mingsheng Textile Machinery Co Ltd
Original Assignee
Wuxi Mingsheng Textile Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuxi Mingsheng Textile Machinery Co Ltd filed Critical Wuxi Mingsheng Textile Machinery Co Ltd
Priority to CN201611011905.4A priority Critical patent/CN106513288A/en
Publication of CN106513288A publication Critical patent/CN106513288A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • 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
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • 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
    • 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
    • B05D2350/00—Pretreatment of the substrate
    • B05D2350/30—Change of the surface
    • B05D2350/33—Roughening
    • B05D2350/35—Roughening by chemical means
    • 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
    • B05D2504/00—Epoxy polymers
    • 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
    • B05D2601/00—Inorganic fillers
    • B05D2601/20—Inorganic fillers used for non-pigmentation effect

Landscapes

  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Hydraulic Turbines (AREA)
  • Paints Or Removers (AREA)

Abstract

The invention discloses an anti-corrosion and anti-abrasion method of a hydraulic turbine blade organic coating. The method comprises the steps that 1, sand-blasting roughening is carried out on a blade surface 2, the roughened blade surface is cleaned through acetone and ethyl alcohol and dried; 3, 20-45wt% of hard WC ceramic particles, 5-15wt% of Si3N4 nanometer particles and the balance terminal hydroxyl liquid rubber modified epoxy resin are prepared into slurry and mixed evenly; 4, the blade surface is evenly coated with the paste, the paste is dried at the temperature of 90-130 DEG C, and the WC-Si3N4 doped terminal hydroxyl liquid rubber modified epoxy resin anti-corrosion and anti-abrasion coating arranged on the blade surface in a fusion covering mode is obtained. After the coating is tried out in waste stream, no obvious abrasion and corrosion trace is found.

Description

A kind of turbine blade organic coating anticorrosion abrasionproof etching method
Technical field
A kind of the present invention relates to field of material technology, more particularly to turbine blade anticorrosion abrasionproof etching method.
Background technology
Abrasion wear phenomena all generally existing in many industries such as water conservancy, water power, machinery, weaving and metallurgy, and it is non- Chang Yanchong, the economic loss for thereby resulting in can quite show.China is very huge in the spending of this aspect, especially water conservancy, water power Department more projects.This is because China's silt content of river is big, complete excessively annual river of the sedimentary loading more than 10,000,000 tons of transporting is up to 115 Bar, according to first place in the world.Calendar year 2001 relevant statistics show Ml, and national power station total installation of generating capacity is 80.05GW, gross generation For 2184.5 hundred million kW/h, positioned at big areas of silt content of river such as northwest, southwest and North China, these are regional for wherein 105,600,000,000 kW h Component of Hydraulic Turbines not only washed away by high-velocity flow, denuded and mechanical force is acted on, but also by being mingled with current The abrasion of the media such as silt, ablation destruction, therefore the consume of material is very serious.In addition, in the power station of Central-South, East China, Although Component of Hydraulic Turbines receives sand erosion because silt content of river is few, loss is little, and the cavitation of current is at deep water to water The destruction of engine blade wheel material is then quite serious.Data shows according to the relevent statistics, and a large-scale power station is used for changing, repairing every year The expense of water conservancy machinery up to more than million yuan, therefore, solve hydraulic abrasion, erosion problem, it is very necessary.
A kind of most economical, most efficient method is exactly to coat the high anti-corrosion painting of high abrasion on the blade and arbor of the hydraulic turbine Layer, and wear resistant corrosion resistant metal coating is as its coating processes is simple, economic and effect is obvious, it is deep to be favored by people.
The content of the invention
It is an object of the invention to propose a kind of turbine blade anticorrosion abrasionproof etching method, resist can turbine blade Abrasion is simultaneously anticorrosive.
, including metal coating layer material, there is coating hardness and toughness be difficult to the contradiction taken into account, improve in traditional coating material The hardness of coating often to sacrifice its toughness as cost, causes coating to decline with skin and associativity with matrix.When by big When particle impacting, abrasion, coating is easy to crack, hard phase is easy to fall off.
It is that, up to this purpose, the present invention is employed the following technical solutions：
A kind of turbine blade anticorrosion abrasionproof etching method, which includes：
(1) sandblasting roughening is carried out in blade surface；
(2) acetone and ethanol purge roughening blade surface are used and is dried；
(3) 20-45wt%, Si are accounted for according to hard WC ceramic particles3N4Nano-particle accounts for 5-15wt%, terminal hydroxy liquid rubber The proportioning of glue modified epoxy surplus, makes slurry mix homogeneously；
(4) by the slurry uniform application in blade surface, be dried at 90-130 DEG C, cladding obtained in blade surface WC-Si3N4, doping terminal hydroxy liquid rubber modified epoxy resin abrasion-proof corrosion-proof erosion resisting coating.
The present invention improves both compatibilitys, and shape using the liquid rubber modified epoxy resin containing terminal functionality Into inierpeneirating network structure or half interpenetrating network structure, as terminal functionality liquid rubber contains butadiene long-chain, itself tool There is a preferable pliability, therefore the modified epoxy that adopts of the present invention has toughness, therefore its nonmetallic painting for preparing Layer good toughness, hardness are high, overcome the defect that conventional coatings hardness can not be taken into account with toughness.
The preparation method of terminal hydroxy liquid rubber modified epoxy resin of the present invention is the state of the art, this Art personnel can be selected in the range of prior art.Typical but non-limiting example is as follows：
First by terminal hydroxyl polybutadiene liquid rubber or end hydroxy butadiene/acrylonitrile liquid rubber and polyisocyanates Polyisocyanates terminated polybutadiene liquid rubber prepolymer is produced in reaction or polyisocyanates polybutadiene/acrylonitrile liquid rubber is pre- Then the prepolymer is reacted with epoxy resin, prepares terminal hydroxy liquid rubber modified epoxy resin by polymers.
The terminal hydroxy liquid rubber modified epoxy resin that the present invention is adopted, terminal hydroxyl polybutadiene liquid rubber is introduced by which In the cross-linked network of epoxy resin, play toughening effect, due between terminal hydroxy liquid rubber and various modified components with chemistry Bond is closed, and not only can retain the high-adhesion energy between epoxy resin and metal, and and high flexible with liquid rubber Property, thus obtained terminal hydroxy liquid rubber modified epoxy resin possesses the unification of pliability and hardness.
Preferably, epoxy resin of the present invention, its structural formula is：
In formula, G is epoxide group, and R is H or alkyl, and n is the integer of 2-4.
Preferably, in modified epoxy of the present invention, doped with additives such as firming agent.
Preferably, WC ceramic particles account for 30-40wt%, further preferred 35wt%.
The wear-resistant coating that the present invention is prepared, which is tightly combined with matrix, and bond strength is more than 800MPa, service life Extend more than 6-7 times compared to the blade without coating, anti-cavitation ability improves more than 10 times.
The WC-Si that the present invention is prepared3N4, doping terminal hydroxy liquid rubber modified epoxy resin wear resistant corrosion resistant apply Layer, which possesses the advantage of ceramic coating, and the characteristics of but also with Organic substance good film flexibility, not only anti scuffing, anticorrosive, flexible Property is not bad.Jing is tried out 1 month in waste stream, does not find significantly abrasion and evidence of corrosion.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.
Embodiment 1
A kind of turbine blade anticorrosion abrasionproof etching method, which includes：
(1) sandblasting roughening is carried out in blade surface；
(2) acetone and ethanol purge roughening blade surface are used and is dried；
(3) 20wt%, Si are accounted for according to hard WC ceramic particles3N4Nano-particle accounts for 15wt%, terminal hydroxy liquid modified rubber The proportioning of epoxy resin surplus, makes slurry mix homogeneously；
(4) by the slurry uniform application in blade surface, be dried at 90 DEG C, cladding obtained in the WC- of blade surface Si3N4The terminal hydroxy liquid rubber modified epoxy resin abrasion-proof corrosion-proof erosion resisting coating of doping.
Embodiment 2
A kind of turbine blade anticorrosion abrasionproof etching method, which includes：
(1) sandblasting roughening is carried out in blade surface；
(2) acetone and ethanol purge roughening blade surface are used and is dried；
(3) 45wt%, Si are accounted for according to hard WC ceramic particles3N4Nano-particle accounts for 5wt%, terminal hydroxy liquid modified rubber The proportioning of epoxy resin surplus, makes slurry mix homogeneously；
(4) by the slurry uniform application in blade surface, be dried at 130 DEG C, cladding obtained in the WC- of blade surface Si3N4The terminal hydroxy liquid rubber modified epoxy resin abrasion-proof corrosion-proof erosion resisting coating of doping.
Embodiment 3
A kind of turbine blade anticorrosion abrasionproof etching method, which includes：
(1) sandblasting roughening is carried out in blade surface；
(2) acetone and ethanol purge roughening blade surface are used and is dried；
(3) 35wt%, Si are accounted for according to hard WC ceramic particles3N4Nano-particle accounts for 10wt%, terminal hydroxy liquid modified rubber The proportioning of epoxy resin surplus, makes slurry mix homogeneously；
(4) by the slurry uniform application in blade surface, be dried at 100 DEG C, cladding obtained in the WC- of blade surface Si3N4The terminal hydroxy liquid rubber modified epoxy resin abrasion-proof corrosion-proof erosion resisting coating of doping.
The turbine blade that embodiment 1-3 is prepared, Jing are tried out 1 month in waste stream, do not find significantly mill Erosion and evidence of corrosion.

Claims (3)

1. a kind of turbine blade anticorrosion abrasionproof etching method, which includes：
(1) sandblasting roughening is carried out in blade surface；
(2) acetone and ethanol purge roughening blade surface are used and is dried；
(3) 20-45wt%, Si are accounted for according to hard WC ceramic particles3N4Nano-particle accounts for 5-15wt%, terminal hydroxy liquid rubber and changes Property epoxy resin surplus proportioning, make slurry mix homogeneously；
(4) by the slurry uniform application in blade surface, be dried at 90-130 DEG C, cladding obtained in the WC- of blade surface Si3N4The terminal hydroxy liquid rubber modified epoxy resin abrasion-proof corrosion-proof erosion resisting coating of doping；
Described epoxy resin, its structural formula is：
In formula, G is epoxide group, and R is H or alkyl, and n is the integer of 2-4.
2. turbine blade anticorrosion abrasionproof etching method as claimed in claim 1, it is characterised in that described terminal hydroxy liquid The preparation method of rubber modified epoxy resin is as follows：
First terminal hydroxyl polybutadiene liquid rubber or end hydroxy butadiene/acrylonitrile liquid rubber are reacted with polyisocyanates Produce polyisocyanates terminated polybutadiene liquid rubber prepolymer or polyisocyanates polybutadiene/acrylonitrile liquid rubber pre-polymerization Then the prepolymer is reacted with epoxy resin, prepares terminal hydroxy liquid rubber modified epoxy resin by thing.
3. turbine blade anticorrosion abrasionproof etching method as claimed in claim 1 or 2, it is characterised in that WC ceramic particles are accounted for 30-40wt%, further preferred 35wt%.
CN201611011905.4A 2016-11-17 2016-11-17 Anti-corrosion and anti-abrasion method of hydraulic turbine blade organic coating Pending CN106513288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611011905.4A CN106513288A (en) 2016-11-17 2016-11-17 Anti-corrosion and anti-abrasion method of hydraulic turbine blade organic coating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611011905.4A CN106513288A (en) 2016-11-17 2016-11-17 Anti-corrosion and anti-abrasion method of hydraulic turbine blade organic coating

Publications (1)

Publication Number Publication Date
CN106513288A true CN106513288A (en) 2017-03-22

Family

ID=58352173

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611011905.4A Pending CN106513288A (en) 2016-11-17 2016-11-17 Anti-corrosion and anti-abrasion method of hydraulic turbine blade organic coating

Country Status (1)

Country Link
CN (1) CN106513288A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103639101A (en) * 2013-11-15 2014-03-19 西安航空动力股份有限公司 Method for coating abradable coating of composite containing ring of aircraft engine
CN104610845A (en) * 2015-01-28 2015-05-13 芜湖县双宝建材有限公司 Modified epoxy resin anticorrosive paint
CN104817930A (en) * 2015-05-05 2015-08-05 济宁利特纳米技术有限责任公司 Heat-conductive and anti-corrosion coating based on graphene functional material and preparation method of same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103639101A (en) * 2013-11-15 2014-03-19 西安航空动力股份有限公司 Method for coating abradable coating of composite containing ring of aircraft engine
CN104610845A (en) * 2015-01-28 2015-05-13 芜湖县双宝建材有限公司 Modified epoxy resin anticorrosive paint
CN104817930A (en) * 2015-05-05 2015-08-05 济宁利特纳米技术有限责任公司 Heat-conductive and anti-corrosion coating based on graphene functional material and preparation method of same

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
徐甲强等: "《材料合成化学与合成实例》", 28 February 2015, 哈尔滨工业大学出版社 *
李青年: "《薄膜制品设计生产加工新工艺与应用新技术实务全书》", 30 April 2004 *
胡少坤等: "端羟基液体丁腈橡胶改性环氧树脂的结构与性能", 《加工应用》 *

Similar Documents

Publication Publication Date Title
CN101643612B (en) Waterproof antiseptic wearproof nano paint, preparation method, use method and application thereof
CN101407690A (en) Bi-component epoxy zinc rich primer
CN107337901B (en) High molecular alloy polymer and paint and preparation method thereof
CN107541133A (en) Graphene/ceramic particle modified synergic epoxy coating, its preparation method and application
CN102344738A (en) Composite antirust coating
CN114085596B (en) Fusion bonding epoxy powder coating and application thereof in low-surface treatment of rusty steel pipe
CN104946085A (en) Nanometer corrosion-resistant and wear-resistant paint special for intelligent ashtray metal shell
CN111040586A (en) Wear-resistant anticorrosive repair coating for circulating pump impeller
CN103937368B (en) A kind of anticorrosion antiwear patching material
CN106519903A (en) Anti-corrosion and anti-abrasion method for organic coating of hydraulic turbine blade
CN106675319A (en) Modified epoxy resin coating corrosion and abrasion prevention method for hydraulic turbine blade
CN106521395A (en) Anti-corrosion and anti-abrasion method for water turbine blades
CN106513288A (en) Anti-corrosion and anti-abrasion method of hydraulic turbine blade organic coating
CN111393880A (en) Graphene modified inorganic phosphate protective coating and preparation method thereof
CN106497333A (en) A kind of turbine blade modified epoxy coating antiseptic loses abrasionproof etching method
CN103254735A (en) Ocean heavy anti-corrosion epoxy aluminum-rich nano-coating and preparation method thereof
CN103214917A (en) Marine corrosion-resistant epoxy aluminum-magnesium-nickel rear earth rich nanometer material and preparation method thereof
CN106398476A (en) Anticorrosion anti-abrasion method for water turbine blade modified epoxy resin coating
CN106519904A (en) Water turbine blade modified epoxy resin coating corrosion and erosion prevention method
CN106752675A (en) A kind of turbine blade modified epoxy multicoat anticorrosion abrasionproof etching method
CN106752224A (en) A kind of turbine blade modified epoxy multicoat anticorrosion abrasionproof etching method
CN106497334A (en) A kind of turbine blade modified epoxy multicoat anticorrosion abrasionproof etching method
CN110241352B (en) Abrasion-resistant composite material for water turbine and preparation method and application thereof
CN106497335A (en) A kind of turbine blade modified epoxy multicoat anticorrosion abrasionproof etching method
CN106752674A (en) A kind of turbine blade modified epoxy multicoat anticorrosion abrasionproof etching method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170322