CN102774071A - Composite coating using stainless steel as base materials - Google Patents
Composite coating using stainless steel as base materials Download PDFInfo
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- CN102774071A CN102774071A CN2012102838048A CN201210283804A CN102774071A CN 102774071 A CN102774071 A CN 102774071A CN 2012102838048 A CN2012102838048 A CN 2012102838048A CN 201210283804 A CN201210283804 A CN 201210283804A CN 102774071 A CN102774071 A CN 102774071A
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Abstract
The invention discloses a composite coating using stainless steel as base materials. The composite coating comprises a middle layer and a surface layer. The middle layer is formed on the base materials. The middle layer is made from the materials with good electric conduction and heat conduction performances, such as the metals of Cu, Ni, Co, Mo, W, and the like. The surface layer is formed on the middle layer. The surface layer is a strengthening protection layer. The surface layer is made from hydronalium materials with prominent abrasion resistant performance, corrosion resistant performance and antioxidant ability. The invention discloses a composite coating using stainless steel as base materials, and the composite coating is formed by two layers of metal materials. The electric conduction, heat conduction performances and the corrosion resistant performance of the stainless steel base materials are effectively improved. A coating process of the coating has the advantages of simple, convenient and scientific operation, moderate cost; the bonding strength of the coating is high and the durability of the coating is lasting.
Description
Technical field
The present invention relates to the coating that a kind of stainless steel is a base material, relate in particular to a kind of composite coating that can effectively improve stainless steel substrate conduction, heat conductivility and corrosion resisting property, belong to the coating technology field.
Background technology
Stainless steel is difficult for producing burn into spot corrosion, corrosion or wear phenomenon, and it is one of material that intensity is the highest in the metal material for building.Because stainless steel has good anti-corrosion, so it can make structure member for good and all keep the integrality of engineering design.Chromium stainless steel also integrates mechanical strength and deep drawing quality, is easy to the processing and manufacturing of parts, can satisfy architect and structural design personnel's needs.
But stainless steel is compared with ordinary carbon steel, the 3-5 that its resistivity is about carbon steel doubly, linear expansion coefficient is bigger more than 40% than carbon steel at least, and the not enough carbon steel of thermal conductivity 1/3; Simultaneously, still corrosion phenomenon can take place when stainless steel uses in marine environment, regular meeting reduces the serviceability of stainless steel parts during these performance drawbacks; Therefore, people can apply other metals of one deck at the skin of stainless steel parts, to improve its serviceability, for example, Cu, Zn, Al etc.; The material that certain corrosion potential of single coating is lower, though can play the cathodic protection effect to stainless steel parts, owing to receive the influence of outside adverse circumstances; Coating is easy to generate and comes off; Durability is relatively poor, also can influence the mechanical property of stainless steel parts simultaneously, reduces its practicality.
Summary of the invention
To the demand, the invention provides the composite coating that a kind of stainless steel is a base material, this composite coating can effectively improve conduction, heat conductivility and the corrosion resisting property of stainless steel substrate, and coating and high base strength height, and durability is lasting.
The present invention is that a kind of stainless steel is the composite coating of base material; This composite coating comprises intermediate layer and top layer; Described intermediate layer takes shape on the base material, and the material in intermediate layer is metals such as the Cu that conducts electricity, heat conductivility is good, Ni, Co, Mo, W, and described top layer takes shape on the intermediate layer; The top layer is the enhanced protection layer, and the material on top layer is the outstanding hydronalium of wearability, corrosion resistance and oxidation resistance.
In the present invention's one preferred embodiment, the raw material in described intermediate layer can be in Cu, Ni, Co, Mo, the W metal particle one or more, the granularity of employed metal particle is about the 600-800 order.
In the present invention's one preferred embodiment, described intermediate layer adopts plasma spray technology to prepare, and its molding thickness is about 15-30um.
In the present invention's one preferred embodiment, described top layer adopts electric arc spraying process to prepare, and its molding thickness is about 20-40um.
In the present invention's one preferred embodiment, described top layer raw material is highly purified magnesium rod and aluminum strip, and impurity content all is no more than 0.2% in two kinds of bonding jumpers.
The present invention has disclosed the composite coating that a kind of stainless steel is a base material; This composite coating is made up of the double layer of metal material; Can effectively improve conduction, heat conductivility and the corrosion resisting property of stainless steel substrate, and the coating processes of coating is easy to implement, science, cost is moderate; Coating and high base strength are high, and durability is lasting.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation:
Fig. 1 is that embodiment of the invention stainless steel is the composite coating structure sketch map of base material;
The mark of each parts is following in the accompanying drawing: 1, intermediate layer, 2, the top layer, 3, base material.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
Fig. 1 is that embodiment of the invention stainless steel is the composite coating structure sketch map of base material; This composite coating comprises intermediate layer 1 and top layer 2; Described intermediate layer 1 takes shape on the base material 3; The material in intermediate layer 1 is metals such as the Cu that conducts electricity, heat conductivility is good, Ni, Co, Mo, W; Described top layer 2 takes shape on the intermediate layer 1, and top layer 2 is the enhanced protection layer, and the material on top layer is the outstanding hydronalium of wearability, corrosion resistance and oxidation resistance.
It is following that the stainless steel that the present invention mentions is that the preparation method of the composite coating of base material specifically prepares process:
A) pretreatment of base material at first, is processed thickness with the stainless steel blank through rolling mill practice and is about 0.5-0.8mm, the thin plate of width 0.8-1m; Then, stainless sheet steel is carried out cleaning by degreasing, the degreasing agent main component is a potassium hydroxide, and uses organic complexing agent as cleaning additive, and temperature is controlled at about 25 ℃ during cleaning, cleans finish back flushing with clean water and oven dry; Then, stainless sheet steel is carried out blasting treatment, it is the quartz sand about the 200-300 order that the sandblast raw material is selected granularity for use, and blasting pressure is 0.5-0.6MPa, and main purpose is to eliminate the oxide layer on stainless sheet steel surface; At last, use flushing with clean water and oven dry, subsequent use;
B) thermal spraying intermediate layer, intermediate layer adopt plasma spray coating process to prepare, raw material can be in Cu, Ni, Co, Mo, the W metal particle one or more, the granularity of employed metal particle is about the 600-800 order; In this spraying coating process implementation process, plasma gas is selected Ar gas for use, and spray distance is controlled at 80-120mmmm, and angle is 40 °-45 °; After above-mentioned plasma spraying repeats to implement 2-3 time, can make the film that thickness is about 15-30um;
C) thermal spraying top layer, top layer adopt electric arc spraying process to prepare, and the top layer raw material is selected highly purified magnesium rod and aluminum strip for use, and the percentage composition proportioning of magnesium, aluminum strip is 40%-45%:55%-60%, and impurity content all is no more than 0.2% in two kinds of bonding jumpers; In this electric arc spraying process implementation process, arc voltage is controlled at about 22-26V, and electric current is 100-120A, and spray distance is 120-140mm, and air pressure is 0.8-1MPa, and the skin depth after the moulding is about 20-30um;
D) composite coating post processing, composite coating post processing comprise polishing, polishing and sealing of hole processing; Wherein, polishing, polishing operation adopt shot-blast process, and it is the ceramic pellet about 200 orders that shot-peening is selected granularity for use, and shot-peening pressure is controlled at 0.08-0.1MPa, and after the bead, the composite coating surface roughness is below the 0.32um; Hole sealing agent during sealing of hole is handled is selected air drying type phenolic resins for use, and consumption is 7.5m2/L, uses ketone, aromatic hydrocarbon and absolute ethyl alcohol to make diluent during spraying; After spraying finishes, part is placed in the baking oven baking 15-20 minute, solidify, oven temperature is controlled at 130-140 ℃.
The present invention has disclosed the composite coating that a kind of stainless steel is a base material; Be characterized in: this composite coating is made up of the double layer of metal material; Can effectively improve conduction, heat conductivility and the corrosion resisting property of stainless steel substrate, and the coating processes of coating is easy to implement, science, cost is moderate; Coating and high base strength are high, and durability is lasting.
The above; Be merely the specific embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any those of ordinary skill in the art are in the technical scope that the present invention disclosed, and variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (5)
1. composite coating that stainless steel is a base material; This composite coating comprises intermediate layer and top layer, it is characterized in that, described intermediate layer takes shape on the base material; The material in intermediate layer is metals such as the Cu that conducts electricity, heat conductivility is good, Ni, Co, Mo, W; Described top layer takes shape on the intermediate layer, and the top layer is the enhanced protection layer, and the material on top layer is the outstanding hydronalium of wearability, corrosion resistance and oxidation resistance.
2. stainless steel according to claim 1 is the composite coating of base material, it is characterized in that, the raw material in described intermediate layer can be in Cu, Ni, Co, Mo, the W metal particle one or more, the granularity of employed metal particle is about the 600-800 order.
3. stainless steel according to claim 2 is the composite coating of base material, it is characterized in that, described intermediate layer adopts plasma spray technology to prepare, and its molding thickness is about 15-30um.
4. stainless steel according to claim 1 is the composite coating of base material, it is characterized in that, described top layer adopts electric arc spraying process to prepare, and its molding thickness is about 20-40um.
5. stainless steel according to claim 4 is the composite coating of base material, it is characterized in that, described top layer raw material is highly purified magnesium rod and aluminum strip, and impurity content all is no more than 0.2% in two kinds of bonding jumpers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012102838048A CN102774071A (en) | 2012-08-10 | 2012-08-10 | Composite coating using stainless steel as base materials |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102838048A CN102774071A (en) | 2012-08-10 | 2012-08-10 | Composite coating using stainless steel as base materials |
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| CN102774071A true CN102774071A (en) | 2012-11-14 |
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| CN2012102838048A Pending CN102774071A (en) | 2012-08-10 | 2012-08-10 | Composite coating using stainless steel as base materials |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104757857A (en) * | 2014-01-07 | 2015-07-08 | 无锡新大中薄板有限公司 | Manufacturing method of flocked carpet for oceanographic engineering |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86105621A (en) * | 1985-06-14 | 1987-02-25 | 住友特殊金属株式会社 | The manufacture method of composite plate, composite plate and equipment |
| CN1275764C (en) * | 2000-10-18 | 2006-09-20 | 东洋钢钣株式会社 | Multilayered metal laminate and process for producing the same |
| JP2012021208A (en) * | 2010-07-16 | 2012-02-02 | Nissan Motor Co Ltd | Conductive member, method for manufacturing the same, separator for fuel cell, and solid polymer fuel cell |
-
2012
- 2012-08-10 CN CN2012102838048A patent/CN102774071A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86105621A (en) * | 1985-06-14 | 1987-02-25 | 住友特殊金属株式会社 | The manufacture method of composite plate, composite plate and equipment |
| CN1275764C (en) * | 2000-10-18 | 2006-09-20 | 东洋钢钣株式会社 | Multilayered metal laminate and process for producing the same |
| JP2012021208A (en) * | 2010-07-16 | 2012-02-02 | Nissan Motor Co Ltd | Conductive member, method for manufacturing the same, separator for fuel cell, and solid polymer fuel cell |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104757857A (en) * | 2014-01-07 | 2015-07-08 | 无锡新大中薄板有限公司 | Manufacturing method of flocked carpet for oceanographic engineering |
| CN104757857B (en) * | 2014-01-07 | 2016-05-04 | 无锡新大中薄板有限公司 | Be used for the manufacture method of the flocked carpet of ocean engineering |
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Application publication date: 20121114 |