CN108930013A - A kind of multicomponent alloy infiltration anti-corrosion method - Google Patents
A kind of multicomponent alloy infiltration anti-corrosion method Download PDFInfo
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- CN108930013A CN108930013A CN201810643632.8A CN201810643632A CN108930013A CN 108930013 A CN108930013 A CN 108930013A CN 201810643632 A CN201810643632 A CN 201810643632A CN 108930013 A CN108930013 A CN 108930013A
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- steel construction
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- heating
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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
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/18—Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions
- C23C10/26—Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions more than one element being diffused
-
- 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
-
- 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
- C23C4/18—After-treatment
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The present invention relates to a kind of technical fields of Metal surface anti-corrosion, and in particular to preserving method is closed in zincizing；The problem of solved, is to provide a kind of simple process, and anti-corrosion method is closed in high with good corrosion stability, wear-resisting, high tenacity, tension and yield strength, environmental protection zincizing；Used technical solution are as follows: be surface-treated first ball blast, high-temperature heating, double zinc-aluminium silk capacitor solutions are sprayed onto steel surface, heating infiltration again, surface zinc-aluminium iron alloy layer is formed, reaches anti-and collides with, anticorrosion optimum efficiency, confining bed alloyed powder is sprayed again using zincizing waste heat, and the present invention is widely used in the preservative treatment field of steel construction piece.
Description
Technical field
The present invention relates to a kind of technical fields of Metal surface anti-corrosion, and in particular to preserving method is closed in zincizing.
Background technique
Railroad track equipment, bolt, railway spike, rail clip and contact net fitting etc. are mounted on open-air atmosphere, exposing to the weather
It drenches with rain, severe cold, high temperature, rainwater, dust storm, severe air pollution, particularly Acid Rain Area operating condition are severe, existing anticorrosion
Technique, method are not able to satisfy the requirement of product.Especially today of China express railway fast development, to track equipment antiseptic property
More stringent requirements are proposed.The bridge of reinforced concrete structure equally exists etching problem.Its reason mainly has frost demolition, changes
Burn into steel bar corrosion and alkali-aggregate reaction etc. are learned, especially because humidity, temperature and CO2Effect, the carbon of concrete can be caused
Change, along with the effect of corrosive media will lead to steel bar corrosion, and then destroys concrete structure.It is existing for rolling stock
Anti-corrosion measure mainly has painting, coating Dacroment, nitridation, hot galvanizing and simple zincizing.Painting is anti-corrosion in these methods
Effect is poor, and coating combines bad, easily peeling；The anti-corrosion effect of Dacroment is fine, but coating is thin and flexible, not wear-resisting, easily peels off；Nitrogen
Change hardness high abrasion, is combined, but corrosion resisting property is inadequate；Hot galvanizing can obtain thickness coating, but surface quality is not high, Yi Jie
Tumor, especially screw element groove are easily filled and led up and cannot be used.Hot galvanizing simultaneously is seriously polluted, and temperature high energy consumption is big, spring etc.
Some parts should not use.In the prior art, the corrosion resistance of part is also often improved by increasing the thickness of anti-corrosion layer, still
This also makes the size of part change, increase between part with the use of difficulty.
It needs to vacuumize in the technique of alloy permeation, and under vacuum conditions to structural member, accurately adjusts temperature, therefore
It is higher to process conditions and equipment requirement, and since it is desired that being vacuumized to structural member, heating in vacuum case also limits structural member
Size.Alloy permeation simultaneously is mainly used for needing high temperature resistant, corrosion-resistant and impact-resistant component, can not be to integral structure component
Carry out permeation processing.Its antiseptic principle is physical shielding and cathodic protection synergy, zinc layers phase in the technique of electric arc zn spraying
It is not higher than bond strength for the zincizing coating of zincizing technique, and be far from zincizing coating of the zinc layers hardness for spraying zinc technology is high.
Summary of the invention
Present invention solves the technical problem that be to provide a kind of simple process, have good corrosion stability, wear-resisting, high tenacity,
The multicomponent alloy infiltration anti-corrosion method of tension and yield strength height, environmental protection.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is as follows: a kind of multicomponent alloy infiltration anti-corrosion side
Method, comprising the following steps:
Shot Blasting: the structural member after welding is subjected to ball blast surface treatment, obtains pure metal surface；
Steel part heating: the steel construction piece after ball blast is heated, is heated to 220-250 DEG C；
Surface spraying: carrying out allumen for the steel construction piece after heating and heat spinneret, so that allumen penetrates into steel construction piece
Surface layer, alloying layer thickness be 10-100 μm, in the allumen volume ratio of zinc and aluminium be 1:1；
Infiltration heating: by the steel construction piece after spraying, it is heated to 280-350 DEG C, keeps the temperature 1-2 hours；
It applies confining bed: after cooling the temperature to 200 DEG C, sealer being sprayed to steel construction piece surface, enclosed layer thickness is 10-100 μ
m；
Heat preservation solidification: by be sprayed with the steel construction piece of confining bed 180-210 DEG C at a temperature of solidify 3-7 hour, it is i.e. complete after cooling down
At.
The partial size of the sealer is 20-60 μm.
The raw material of the sealer is according to following weight: 10 parts of zinc powder, 1-2 parts of nickel powder, and 0.05-0.1 parts of magnesium salts,
0.1-0.5 parts of surfactant.
The surfactant is fatty alcohol-ether sodium sulfate, fatty alcohol polyoxyethylene ether, perfluoro capryl sulphonyl season iodide
Or at least one of fatty acid diethanolamine.
Finished parts hardness is HV380-400.
As described above, compared with the prior art, the invention has the beneficial effects that: the present invention first uses electric arc spraying
Metal zinc-aluminium is sprayed on structural member surface and then heats infiltration processing under open condition by method, without vacuumizing, is wanted to equipment
It asks not high, reduces costs, treated, and infiltration coating has bond strength high again, and hardness is wear-resisting up to HV380-400
Damage, corrosion resistance is strong, and the tension and yield strength of structural member also can be further improved.
1, coating uniform of the present invention, metallographic structure is fine and close, and alloying layer thickness can reach 10 μm -100 μm, regulates and controls as needed,
Meet national working standard >=15 μm, >=30 μm, be one layer of firm anti-corrosion barrier, anti-corrosion property can be significantly better than hot galvanizing, electricity
Zinc-plated and ordinary powder zincizing.Meanwhile zinc coat is equal for atmosphere, seawater, suds, petroleum, benzene and high temperature vulcanized hydrogen
There is excellent resistance to corrosion.
2, there is no Hydrogen Brittleness Phenomena after preservative treatment of the present invention, there is good heat resistance, therefore can meet strong to fatigue
The preservative treatment of degree, wearability, toughness reguirements high steel structural part and fastener.Infiltration treated steel piece is not simultaneously
The structure for changing matrix, nor affects on its mechanical property, tension, yield strength also increase.
3, steel surface of the present invention handles first ball blast, high-temperature heating, and zinc-aluminium silk capacitor solution is sprayed onto steel surface, again high temperature
Infiltration forms surface zinc-aluminium iron alloy layer, reaches anti-and collides with, anticorrosion optimum efficiency sprays confining bed using infiltration waste heat again
With alloyed powder, heating is bright double from anticorrosion ability, three-waste free discharge to reach appearance again.
Present invention process principle are as follows: Shot Blasting: by structural members such as H profile steel column, steel plate, profile, steel pipes after welding
Ball blast surface treatment is carried out, scale removal, rust and foreign matter are allowed to obtain pure metal surface；
Steel part heating: the steel construction piece after ball blast is heated at high temperature, and temperature regulates and controls in 220-250 DEG C of range；
Surface spraying: steel construction piece surface after the heating carries out double zinc-aluminium silk capacitor solution processing, so that zinc and other metals member
Element penetrates into steel surface layer, and the metallurgical bonding of interreaction and its parent metal, forms a variety of alloy zinc coats between multi-element metal, and
Infiltration layer is uniform, and metallographic structure is fine and close, regulates and controls as needed, can effectively improve basic anti-corrosion and collision.
Infiltration heating: it is heated at high temperature infiltration after spraying again, makes its alloying element is more efficient to be uniformly adhered to steel knot
Structure surface reaches anti-corrosion protection effect.
It applies confining bed: spraying Seal treatment being carried out to its surface after steel construction piece appearance infiltration high temperature, coating layer thickness is reachable
To 10 μm -100 μm, regulate and control as needed.It dusts and uses powder coating particles for 30 μm -50 μm, even application is in matrix surface.
Heat preservation solidification: steel construction piece after spraying by 180-200 DEG C of solidification, can further improve oxidation resistance and its
Wearability, flat appearance and no sag situation.
Steel construction piece its coating layer thickness after preservative treatment of the present invention: generally between 10-100um, can be made according to matrix
Depending on situation；Layer surface hardness: HV380-400 (is equivalent to HRC40-42)；Layer surface situation: uniform bright and clean, color
Silvery white or silver gray, do not change part size, no hydrogen embrittlement.
National standard can be met in national standard experiment: copper-bath test: meeting national standard (GB2317-85) skill
Art condition test；Neutral salt spray test: its experimental condition presses GB/T10125-1997 technical conditions, meets national standard.It is heat-resisting
Property is good, and zincizing part will not kill in 600 DEG C；AdhesionStrength experiment: binding force is strong, is diffusion metallurgical bonding, accords with through experiment
National combining power test standard (GB2694-81) is closed, other test thin slices do 90 DEG C of bendings with furnace zincizing sample and infiltration layer does not occur
It peels off, Hammering Test infiltration layer meets concerned countries standard without peeling.
Specific embodiment
The present invention is further detailed in conjunction with following specific embodiments.
Embodiment 1
A kind of multicomponent alloy infiltration anti-corrosion method, comprising the following steps:
Shot Blasting: the structural member after welding is subjected to ball blast surface treatment, obtains pure metal surface；
Steel part heating: the steel construction piece after ball blast is heated at high temperature, is heated to 250 DEG C；
Surface spraying: carrying out allumen for the steel construction piece after heating and heat spinneret, so that allumen penetrates into steel construction piece
Surface layer, alloying layer thickness is 10-100 μm, and the volume ratio of zinc and aluminium is 1:1 in the allumen；
Infiltration heating: by the steel construction piece after spray zinc, 280 DEG C are heated to, keeps the temperature 1 hour；
It applies confining bed: after cooling the temperature to 200 DEG C, sealer being sprayed to steel construction piece surface, enclosed layer thickness is 10-100 μ
m；
Heat preservation solidification: by be sprayed with the steel construction piece of confining bed 180 DEG C at a temperature of solidify 7 hours, completed after cooling.
The raw material of sealer is according to following weight: 10 parts of zinc powder, 1 part of nickel powder, and 0.1 part of magnesium salts, fatty alcohol ether sulphur
0.1 part of sour sodium.
The partial size of the sealer is 30-40 μm.
Embodiment 2
A kind of multicomponent alloy infiltration anti-corrosion method, comprising the following steps:
Shot Blasting: the structural member after welding is subjected to ball blast surface treatment, obtains pure metal surface；
Steel part heating: the steel construction piece after ball blast is heated at high temperature, is heated to 220 DEG C；
Surface spraying: carrying out allumen for the steel construction piece after heating and heat spinneret, so that allumen penetrates into steel construction piece
Surface layer, alloying layer thickness is 10-100 μm, and the volume ratio of zinc and aluminium is 1:1 in the allumen；
Infiltration heating: by the steel construction piece after spray zinc, 350 DEG C are heated to, keeps the temperature 2 hours；
It applies confining bed: after cooling the temperature to 200 DEG C, sealer being sprayed to steel construction piece surface, enclosed layer thickness is 10-100 μ
m；
Heat preservation solidification: by be sprayed with the steel construction piece of confining bed 210 DEG C at a temperature of solidify 3 hours, completed after cooling.
The raw material of sealer is according to following weight: 10 parts of zinc powder, 2 parts of nickel powder, and 0.05 part of magnesium salts, fatty alcohol polyoxy
0.5 part of vinethene.
The partial size of the sealer is 40-60 μm.
Embodiment 3
A kind of multicomponent alloy infiltration anti-corrosion method, comprising the following steps:
Shot Blasting: the structural member after welding is subjected to ball blast surface treatment, obtains pure metal surface；
Steel part heating: the steel construction piece after ball blast is heated at high temperature, is heated to 230 DEG C；
Surface spraying: carrying out allumen for the steel construction piece after heating and heat spinneret, so that allumen penetrates into steel construction piece
Surface layer, alloying layer thickness is 10-100 μm, and the volume ratio of zinc and aluminium is 1:1 in the allumen；
Infiltration heating: by the steel construction piece after spray zinc, 320 DEG C are heated to, keeps the temperature 1.5 hours；
It applies confining bed: after cooling the temperature to 200 DEG C, sealer being sprayed to steel construction piece surface, enclosed layer thickness is 10-100 μ
m；
Heat preservation solidification: by be sprayed with the steel construction piece of confining bed 190 DEG C at a temperature of solidify 5 hours, completed after cooling.
The raw material of sealer is according to following weight: 10 parts of zinc powder, 1.5 parts of nickel powder, and 0 .08 parts of magnesium salts, fatty acid
0.2 part of diethanol amine.
Surfactant is fatty alcohol-ether sodium sulfate, fatty alcohol polyoxyethylene ether, perfluoro capryl sulphonyl season iodide or rouge
At least one of fat acid diethanol amine.
The partial size of the sealer is 30-50 μm.
Embodiment 4
A kind of multicomponent alloy infiltration anti-corrosion method, comprising the following steps:
Shot Blasting: the structural member after welding is subjected to ball blast surface treatment, obtains pure metal surface；
Steel part heating: the steel construction piece after ball blast is heated at high temperature, is heated to 230 DEG C；
Surface spraying: carrying out allumen for the steel construction piece after heating and heat spinneret, so that allumen penetrates into steel construction piece
Surface layer, alloying layer thickness is 10-100 μm, and the volume ratio of zinc and aluminium is 1:1 in the allumen；
Infiltration heating: by the steel construction piece after spray zinc, 320 DEG C are heated to, keeps the temperature 1.5 hours；
It applies confining bed: after cooling the temperature to 200 DEG C, sealer being sprayed to steel construction piece surface, enclosed layer thickness is 10-100 μ
m；
Heat preservation solidification: by be sprayed with the steel construction piece of confining bed 190 DEG C at a temperature of solidify 5 hours, completed after cooling.
The raw material of sealer is according to following weight: 10 parts of zinc powder, 1.2 parts of nickel powder, 0 .05 parts of magnesium salts, perfluor is pungent
0.4 part of iodide of base sulphonyl season.
The partial size of the sealer is 30-50 μm.
Above embodiment is merely exemplary to illustrate the principle of the present invention and its effect, and is not intended to limit the present invention.For
Person skilled in the art all without departing from the spirit and scope of the present invention, modifies above-described embodiment or is improved.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by tool usually intellectual in all act technical fields
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (5)
1. a kind of multicomponent alloy infiltration anti-corrosion method, which comprises the following steps:
Shot Blasting: the structural member after welding is subjected to ball blast surface treatment, obtains pure metal surface；
Steel part heating: the steel construction piece after ball blast is heated, is heated to 220-250 DEG C；
Surface spraying: carrying out allumen for the steel construction piece after heating and heat spinneret, so that allumen penetrates into steel construction piece
Surface layer, alloying layer thickness be 10-100 μm, in the allumen volume ratio of zinc and aluminium be 1:1；
Infiltration heating: by the steel construction piece after spraying, it is heated to 280-350 DEG C, keeps the temperature 1-2 hours；
It applies confining bed: after cooling the temperature to 200 DEG C, sealer being sprayed to steel construction piece surface, enclosed layer thickness is 10-100 μ
m；
Heat preservation solidification: by be sprayed with the steel construction piece of confining bed 180-210 DEG C at a temperature of solidify 3-7 hour, it is i.e. complete after cooling down
At.
2. a kind of multicomponent alloy infiltration anti-corrosion method according to claim 1, it is characterised in that: the partial size of the sealer
It is 20-60 μm.
3. a kind of multicomponent alloy infiltration anti-corrosion method according to claim 1 or 2, it is characterised in that: the sealer
Raw material is according to following weight: 10 parts of zinc powder, 1-2 parts of nickel powder, 0.05-0.1 parts of magnesium salts, 0.1-0.5 parts of surfactant.
4. a kind of multicomponent alloy infiltration anti-corrosion method according to claim 3, it is characterised in that: the surfactant is
In fatty alcohol-ether sodium sulfate, fatty alcohol polyoxyethylene ether, perfluoro capryl sulphonyl season iodide or fatty acid diethanolamine at least
It is a kind of.
5. a kind of multicomponent alloy infiltration anti-corrosion method according to claim 1, it is characterised in that: finished parts hardness is
HV380-400。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113980562A (en) * | 2021-11-19 | 2022-01-28 | 中国船舶重工集团公司第七二五研究所 | Anchor chain anti-corrosion wear-resistant coating and preparation method thereof |
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| CN101294267A (en) * | 2007-04-24 | 2008-10-29 | 延锋伟世通汽车饰件***有限公司 | Anticorrosion method for slush mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113980562A (en) * | 2021-11-19 | 2022-01-28 | 中国船舶重工集团公司第七二五研究所 | Anchor chain anti-corrosion wear-resistant coating and preparation method thereof |
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Application publication date: 20181204 |