CN108654950A - The Anticorrosion measure of steel construction under saline-alkali environment - Google Patents
The Anticorrosion measure of steel construction under saline-alkali environment Download PDFInfo
- Publication number
- CN108654950A CN108654950A CN201810295455.9A CN201810295455A CN108654950A CN 108654950 A CN108654950 A CN 108654950A CN 201810295455 A CN201810295455 A CN 201810295455A CN 108654950 A CN108654950 A CN 108654950A
- Authority
- CN
- China
- Prior art keywords
- steel construction
- epoxy resin
- alkali environment
- construction under
- under saline
- 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
- 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
- B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
-
- 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
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- 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
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
-
- 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
-
- 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
- C23C4/06—Metallic material
- C23C4/08—Metallic material containing only metal elements
-
- 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
- C23C4/131—Wire arc spraying
Abstract
The invention discloses the Anticorrosion measures of steel construction under saline-alkali environment, belong to the anticorrosion process field of steel structure surface, the technique carries out electric arc spraying admiro to steel construction substrate surface first, zn-ni alloy deposits are obtained, then in one layer graphene of zn-ni alloy deposits external coating/epoxy resin corrosion-inhibiting coating.The present invention uses electric arc spraying admiro, is formed by plated layer compact, the intensity bonded with steel construction base material height, avoids coating and base material cracking phenomena；The graphene on admiro surface/epoxy resin corrosion-inhibiting coating adhesive force is good, performance with excellent resistance to strong acid, resistance to highly basic and various chemicals, both anticorrosion process combine, substantially prolong service life of the steel construction under saline-alkali environment, steel construction maintenance cost is reduced, realizes extended protection.
Description
Technical field
The present invention relates to steel structure anti-corrosion process fields, in particular for the anticorrosion process of steel construction under saline-alkali environment.
Background technology
It is well known that nature substance is always intended to more stable state, steel is no exception, it is always to stable form
(iron oxide) changes, and this transformation is therefore it also occurs with ambient enviroment phase separation as a result, corroding.Residing for steel construction
One of an important factor for natural environment is also its service life of decision.If sea salt particle content is high in the air of coastal area, corrosion
Property is strong；And the content of sulphur is high in the place in city and factory, air, the alkalinity or sour gas in air are dissolved in after water just
It can become strong corrosive media, the steel construction under this saline-alkali environment is made to be highly prone to corrode.Under normal circumstances, steel construction
On the one hand anticorrosive work is by steel structure surface metal cladding, but some coats of metal easily peel off, toxicity is very big, such as cadmium
Metal, its toxicity is very big, drinks containing the exceeded water of cadmium, can make humans and animals that the diseases such as osteoporosis, muscular atrophy occur, this
Have to attract much attention；On the other hand it is by coating corrosion-inhibiting coating in steel structure surface, but there are corrosion-inhibiting coatings
Poor adhesive force, not ageing-resistant, service life is short, pollutes the environment etc. therefore how each side's planar defect finds a kind of be suitble to
The anticorrosion of steel structure coating to work under saline-alkali environment has become an important issue to be solved.
Invention content
In order to overcome, corrosion-inhibiting coating poor adhesive force in existing anticorrosion of steel structure work, not ageing-resistant, service life is short, to ring
Border pollutes equal each side's planar defect, and the present invention provides good available of a kind of environmentally protective, favorable anti-corrosion effect, ageing-resistant effect
The Anticorrosion measure of steel construction under saline-alkali environment.
In order to achieve the above object, the technical solution adopted in the present invention is：Steel construction substrate surface is sprayed first
Sand processing of rust removing is polishing to St2 grades, using electric arc spraying admiro, has obtained zn-ni alloy deposits, and the thickness of the coating is
80 μm~250 μm, then in one layer graphene of zn-ni alloy deposits external coating/epoxy resin corrosion-inhibiting coating, the thickness of coating
At 50 μm~260 μm.
The Anticorrosion measure of steel construction under above-mentioned saline-alkali environment, the electric arc spraying zn-ni alloy deposits using
Arc spraying system, the system make it to molten condition with the arc-melting zinc-nickel metal to burn, while will using high-speed flow
The zinc-nickel of molten state is atomized, and is formed high-velocity particles stream, is uniformly sprayed in steel construction substrate surface.
The Anticorrosion measure of steel construction under above-mentioned saline-alkali environment, in the zn-ni alloy deposits, the mass fraction of nickel
Control is 5%~20%.
The Anticorrosion measure of steel construction under above-mentioned saline-alkali environment, arc pistol and matrix table when electric arc spraying admiro
The distance controlling in face is in 140mm~200mm, and at 60 °~90 °, arc voltage is controlled in 30V~35V, electric arc for spray angle control
Current control is controlled in 150A~250A, compressed air pressure in 0.3MPa~0.6MPa.
The Anticorrosion measure of steel construction under above-mentioned saline-alkali environment, the zinc coat thickness control of the admiro is at 80 μm
~250 μm.
The Anticorrosion measure of steel construction under above-mentioned saline-alkali environment, the graphene/epoxy resin corrosion-inhibiting coating component
It is with mass fraction：30~60 parts of epoxy resin, 20~40 parts of curing agent, 0.1~1.0 part of antifoaming agent, 2~6 parts of dispersant, stone
Black alkene.
The Anticorrosion measure of steel construction under above-mentioned saline-alkali environment, the ring of the graphene/epoxy resin corrosion-inhibiting coating
Oxygen resin is epoxy resin E-44 or epoxy resin E-51；The curing agent be polyamide curing agent, methyl tetrahydro phthalic anhydride and
One kind in hexahydrophthalic anhydride.
The Anticorrosion measure of steel construction under above-mentioned saline-alkali environment, the graphene/epoxy resin corrosion-inhibiting coating disappear
Infusion is organic silicon antifoaming agent；The dispersant is magnesium stearate, hexenyl bis-stearamides and glyceryl monostearate
In one kind.
The Anticorrosion measure of steel construction under above-mentioned saline-alkali environment, the stone of the graphene/epoxy resin corrosion-inhibiting coating
Black alkene accounts for 0.5%~1.0% of other component gross masses in formula.
The invention has the advantages that having carried out Double-protection to steel construction, i.e., to steel construction substrate surface electric arc spraying
Zn-ni alloy deposits, and coat one layer graphene/epoxy resin corrosion-inhibiting coating on zn-ni alloy deposits surface；It is sprayed using electric arc
Admiro is applied, coated metal can be made to be bonded well with steel construction base material, avoid the generation of cracking phenomena；Graphene is
Chemically inert material, anti-oxidant, the laminar structured infiltration that can hinder oxygen and corrosive medium have excellent mechanical property
Can, graphene/epoxy resin corrosion-inhibiting coating of use has longer service life, good adhesive force and superpower chemically-resistant
Corrosion, the double protection of coating and corrosion-inhibiting coating can make steel construction preferably work under saline-alkali environment.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is schematic diagram of the present invention；
1. steel construction base material in figure, 2. zn-ni alloy deposits, 3. graphenes/epoxy resin corrosion-inhibiting coating.
Specific implementation mode
With reference to specific embodiment, the present invention will be further described, but claimed range is not only limited to
The following examples.
【Embodiment 1】
The Anticorrosion measure of steel construction under saline-alkali environment, the preparation process of zn-ni alloy deposits：
(1) derusting by sandblasting processing is carried out to steel construction substrate surface, is polishing to St2 grades.
(2) electric arc spraying admiro is utilized, the mass fraction of nickel controls the electric arc at 8%, spraying and sprays in admiro
The distance controlling of rifle and matrix surface is 90 ° in 150mm, spray angle control, and arc voltage is controlled in 30V, arc current control
System is controlled in 190A, compressed air pressure in 0.4MPa, and gained zn-ni alloy deposits thickness control is at 100 μm.
The preparation method of the Anticorrosion measure of steel construction under saline-alkali environment, graphene/epoxy resin corrosion-inhibiting coating is as follows：
0.62 part of graphene is added in 200mL acetone and carries out ultrasound, ultrasonic time 40min obtains graphene dispersion
Liquid；45 parts of epoxy resin E-44s are added under magnetic force heating stirring, wait for 30 parts of the complete addition polyamide curing agent of acetone evaporated, organic
0.4 part of silicon class antifoaming agent, 2.5 parts of magnesium stearate, have obtained graphene/anti-corrosive paint of epoxy resin, which is coated in steel
The admiro surface of structure, the thickness for controlling corrosion-inhibiting coating are 200 μm.
【Embodiment 2】
The Anticorrosion measure of steel construction under saline-alkali environment, the preparation process of zn-ni alloy deposits：
(1) derusting by sandblasting processing is carried out to steel construction substrate surface, is polishing to St2 grades.
(2) electric arc spraying admiro is utilized, the mass fraction of nickel controls the electric arc at 9%, spraying and sprays in admiro
The distance controlling of rifle and matrix surface is 60 ° in 180mm, spray angle control, and arc voltage is controlled in 34V, arc current control
System is controlled in 200A, compressed air pressure in 0.5MPa, and gained zn-ni alloy deposits thickness control is at 150 μm.
The preparation method of the Anticorrosion measure of steel construction under saline-alkali environment, graphene/epoxy resin corrosion-inhibiting coating is as follows：
0.5 part of graphene is added in 200mL acetone and carries out ultrasound, ultrasonic time 40min obtains graphene dispersion
Liquid；50 parts of epoxy resin E-44s are added under magnetic force heating stirring, wait for 25 parts of the complete addition methyl tetrahydro phthalic anhydride of acetone evaporated, organic
0.3 part of silicon class antifoaming agent, 2.0 parts of hexenyl bis-stearamides, have obtained graphene/anti-corrosive paint of epoxy resin, by the coating
Admiro surface coated in steel construction, the thickness for controlling corrosion-inhibiting coating are 210 μm.
Claims (9)
1. the Anticorrosion measure of steel construction under saline-alkali environment, which is characterized in that the technique mainly includes the sandblasting of steel structure surface
Derusting；The thickness of steel construction substrate surface electric arc spraying zn-ni alloy deposits, the coating is 80 μm~250 μm；And in zinc-nickel
One layer graphene of alloy layer external coating/epoxy resin corrosion-inhibiting coating, the thickness of the corrosion-inhibiting coating is at 50 μm~260 μm.
2. the Anticorrosion measure of steel construction under saline-alkali environment according to claim 1, which is characterized in that the electric arc spray
Zn-ni alloy deposits are applied using arc spraying system, which makes it to molten with the arc-melting zinc-nickel metal to burn
State, while being atomized the zinc-nickel of molten state using high-speed flow, high-velocity particles stream is formed, is uniformly sprayed in steel construction base material table
Face.
3. the Anticorrosion measure of steel construction under saline-alkali environment according to claim 1 or 2, which is characterized in that the zinc
In nickel alloy coating, the mass fraction of nickel is controlled 5%~20%.
4. the Anticorrosion measure of steel construction under saline-alkali environment according to claim 1 or 2, which is characterized in that electric arc spraying
In 140mm~200mm, spray angle is controlled at 60 °~90 ° the distance controlling of arc pistol and matrix surface when admiro,
Arc voltage control in 30V~35V, arc current control in 150A~250A, compressed air pressure control 0.3MPa~
0.6MPa。
5. electric arc zn spraying nickel alloy technique according to claim 1 or 2, which is characterized in that the plating of the admiro
Layer thickness is controlled at 80 μm~250 μm.
6. the Anticorrosion measure of steel construction under saline-alkali environment according to claim 1, which is characterized in that the graphite
Alkene/epoxy resin corrosion-inhibiting coating component and mass fraction are：30~60 parts of epoxy resin, 20~40 parts of curing agent, antifoaming agent 0.1
~1.0 parts, 2~6 parts of dispersant, graphene.
7. the Anticorrosion measure of steel construction under saline-alkali environment according to claim 1 or 6, which is characterized in that the stone
The epoxy resin of black alkene/epoxy resin corrosion-inhibiting coating is epoxy resin E-44 or epoxy resin E-51；The curing agent is poly-
One kind in amide hardener, methyl tetrahydro phthalic anhydride and hexahydrophthalic anhydride.
8. the Anticorrosion measure of steel construction under saline-alkali environment according to claim 1 or 6, which is characterized in that the stone
The antifoaming agent of black alkene/epoxy resin corrosion-inhibiting coating is organic silicon antifoaming agent；The dispersant is magnesium stearate, hexenyl pair
One kind in stearmide and glyceryl monostearate.
9. the Anticorrosion measure of steel construction under saline-alkali environment according to claim 1 or 6, which is characterized in that the stone
The graphene of black alkene/epoxy resin corrosion-inhibiting coating accounts for 0.5%~1.0% of other component gross masses in formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810295455.9A CN108654950A (en) | 2018-03-30 | 2018-03-30 | The Anticorrosion measure of steel construction under saline-alkali environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810295455.9A CN108654950A (en) | 2018-03-30 | 2018-03-30 | The Anticorrosion measure of steel construction under saline-alkali environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108654950A true CN108654950A (en) | 2018-10-16 |
Family
ID=63783100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810295455.9A Pending CN108654950A (en) | 2018-03-30 | 2018-03-30 | The Anticorrosion measure of steel construction under saline-alkali environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108654950A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324958A (en) * | 2000-05-18 | 2001-12-05 | 中国科学院海洋研究所 | Anticorrosion method of marine steel |
| CN101451243A (en) * | 2008-12-31 | 2009-06-10 | 江苏中矿大正表面工程技术有限公司 | Method and process of steel structure arc spraying composite corrosion proof coating system |
| US20120302668A1 (en) * | 2011-05-27 | 2012-11-29 | G&Cs Co., Ltd. | Semiconductor sealing material composition |
| CN107603418A (en) * | 2017-10-27 | 2018-01-19 | 重庆三峡油漆股份有限公司 | The graphene anticorrosive paint of application on low prepared surface grade steel construction |
-
2018
- 2018-03-30 CN CN201810295455.9A patent/CN108654950A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324958A (en) * | 2000-05-18 | 2001-12-05 | 中国科学院海洋研究所 | Anticorrosion method of marine steel |
| CN101451243A (en) * | 2008-12-31 | 2009-06-10 | 江苏中矿大正表面工程技术有限公司 | Method and process of steel structure arc spraying composite corrosion proof coating system |
| US20120302668A1 (en) * | 2011-05-27 | 2012-11-29 | G&Cs Co., Ltd. | Semiconductor sealing material composition |
| CN107603418A (en) * | 2017-10-27 | 2018-01-19 | 重庆三峡油漆股份有限公司 | The graphene anticorrosive paint of application on low prepared surface grade steel construction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Saha et al. | Erosion–corrosion resistance of microcrystalline and near-nanocrystalline WC–17Co high velocity oxy-fuel thermal spray coatings | |
| CN102774112B (en) | The alloy resin composite anti-corrosive coating of steel construction and construction technology thereof under marine environment | |
| CN104177986B (en) | A kind of zinc-aluminium composite coating and construction technology thereof | |
| CN105463359B (en) | Heat resistant and wear resistant damages nickel chromium triangle-chromium carbide compounded powder of anticorrosive anti-cavitation, coating and preparation method thereof | |
| KR102064583B1 (en) | Amorphous alloy powder exhibiting corrosion and wear resistance properties, manufactruing method thereof | |
| CN111205738B (en) | Low-zinc anticorrosive composition compounded by graphene and flaky conductive material and application thereof | |
| CN103589273B (en) | Ceramic metal anticorrosive paint and preparation method thereof | |
| CN101407690A (en) | Bi-component epoxy zinc rich primer | |
| CN106756712B (en) | A kind of abrasion-resistant metal corrosion-inhibiting coating and its electric arc spraying process | |
| Zhou et al. | Corrosion behavior of HVOF sprayed WC-10Co4Cr coatings in the simulated seawater drilling fluid under the high pressure | |
| CN102266847A (en) | Method for preparing ductile cast iron tube with strong acid and alkali resistance | |
| CN105568206B (en) | A kind of super-hydrophobic antifouling coating formula based on corronil, coating and preparation method thereof | |
| CN108977003A (en) | Watery anti-corrosion low temperature self-drying paint and anti-flash rusting coating process for ironcasting | |
| CN110467832A (en) | A kind of single-component water-based lithium base zinc-rich coating of environment-friendly type and preparation method thereof | |
| CN108654950A (en) | The Anticorrosion measure of steel construction under saline-alkali environment | |
| CN107384121A (en) | A kind of anticorrosive paint and spraying method of water conservancy gate protective coating | |
| JP5564691B2 (en) | Electrically conductive water-based paint and method for cathodic protection of reinforced concrete structures using the paint | |
| Zhixiang et al. | Study on the corrosion electrochemistry behavior and wear resistance of the arc thermal sprayed Zn–Al alloy coating | |
| CN108559940A (en) | A kind of wear-resistant erosion shield and spraying method of hydraulic and hydroelectric engineering steel-slag sand | |
| CN114605891A (en) | Waterborne two-component epoxy zinc-rich coating and preparation method and application thereof | |
| CN107983608A (en) | A kind of bottom of ship corrosion-resistant construction method | |
| CN113045950B (en) | Method for improving corrosion resistance of metal component | |
| CN1412259A (en) | Heavy metal anticorrosive ceramic paint | |
| CN201257788Y (en) | Epoxy resin coating reinforcing steel bar | |
| JP2005144446A (en) | Method of forming conductive rough surface and forming material for conductive rough surface |
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 |
Application publication date: 20181016 |
|
| RJ01 | Rejection of invention patent application after publication |