CN100410415C - Flexible wire material for flame spray coating and preparing method therefor - Google Patents
Flexible wire material for flame spray coating and preparing method therefor Download PDFInfo
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- CN100410415C CN100410415C CNB200510047857XA CN200510047857A CN100410415C CN 100410415 C CN100410415 C CN 100410415C CN B200510047857X A CNB200510047857X A CN B200510047857XA CN 200510047857 A CN200510047857 A CN 200510047857A CN 100410415 C CN100410415 C CN 100410415C
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- metal component
- forming agent
- ceramic composition
- silicon rubber
- wire rod
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Abstract
The present invention relates to a flexible wire material for spraying flames and a preparing method. The flexible wire material is mixed according to the following weight percentage: 8 to 16% of organic forming agent, 42 to 46% of metal component and 42 to 46% of ceramic component. The preparing method of the flexible wire material comprises the following steps according to the proportion that the organic forming agent adopts silicon rubber which does not need heating and pressurizing under room temperature to be cured; before the wire material is pressed, the metal component and the ceramic component are mixed in advance and then is mixed with the forming agent; mixture is placed into a mould and the pressing speed of an extrusion apparatus is controlled to keep the coiling speed of the wire material in synchronization with the pressing speed of the extrusion apparatus so as to uniformly press and wind the wire material; finally, the wire material is properly vulcanized and dried. The flexible wire material has the characteristics of anti-corrosion, wear resistance, anti-friction, high temperature resistance, anti-oxidation, thermal insulation, etc. The present invention overcomes non uniformity and unstable performance for a component in a coating micro-region due to the component segregation of the two kinds of components and effectively solves the problems that the two kinds of components can not uniformly mixed and mutually dispersed, and therefore, the performance of a coating is guaranteed.
Description
Technical field:
The present invention relates to the surface protection technique field, specifically a kind of flame plating is with flexible wire and preparation method.
Background technology:
Thermospray is a kind of reparation and surface protection technique.It is the thermal source that utilizes oxy-acetylene flame, electric arc, plasma arc, wave of explosion etc. to produce, various spray material such as metal, pottery, metal are added pottery, plastics etc., instantaneously heating is to plastic state or molten state, high-velocity spray also deposits to through pretreated component surface, forms a kind of method of surface finish of coating.Along with the development of modern aeroengine, also more and more higher to its performance demands.Particularly prepare the flexible wire that a kind of flame plating is used, this wire rod is an organic forming agent with silicon rubber, contains metal component and ceramic composition in the wire rod.Because these two kinds of component properties are widely different, as granularity, flowing property etc., particularly aspect density of material, the density of metallic substance is much larger than stupalith.Therefore, in the powder course of conveying of coating preparation, two kinds of components are easy to generate component segregation, thereby cause the instability of the inhomogeneous and performance of coating micro-area composition.Owing to existing sharp interface to be easy to peel off between intermediate metal and the ceramic topcoats, the shortcoming that causes coating to lose efficacy.In light of this situation, only by the simple mixing of two kinds of powdered materials, the preparation of carrying out coating is difficult to meet the demands.
Summary of the invention:
In order to overcome above-mentioned deficiency, solve the uniform mixing and mutual scattering problem of two kinds of components, the present invention has adopted a kind of flame plating with flexible wire and preparation method, and described flame plating mixes by following weight percent with flexible wire: organic forming agent silicon rubber is 8～16%, metal component be 42～46% and ceramic composition be 42～46%; To carry out strict control to the granularity of metal component and ceramic composition, described metal component require the metal powder granularity be+260 order proportions reach-320 order proportions less than 5% ,-260～+ 320 order proportions less than 40% should be greater than 50%; Described ceramic composition require the ceramic powder granularity be+260 order proportions reach-320 order proportions less than 2% ,-260～+ 320 order proportions less than 10% should be greater than 90%.
The preparation method of described flexible wire is according to said ratio, realize by following step:
1), material preparation
Adopt silicon rubber as organic forming agent; This organic forming agent silicon rubber at room temperature is liquid, and it is promptly curable to need not to heat in moulding process, pressurize; Metal component is that main component is Ni, Al and W by the alloy powder of aerosolization method preparation; The ceramic composition main component is aluminum oxide and chromic oxide, and principal crystalline phase is α-Al
2O
3, carry out the preparation of stupalith by the high temperature sintering method;
In wire rod, metal component mixes with the subparticle form with ceramic composition, to realize the uniformity consistency of wire rod component, in order to guarantee the performance of coating, to carry out strict control to the granularity of these two kinds of components, described metal component require the metal powder granularity be+260 order proportions reach-320 order proportions less than 5% ,-260～+ 320 order proportions less than 40% should be greater than 50%; Described ceramic composition require the ceramic powder granularity be+260 order proportions reach-320 order proportions less than 2% ,-260～+ 320 order proportions less than 10% should be greater than 90%;
2), wire rod preparation
With above-mentioned organic forming agent silicon rubber, metal component and ceramic composition, before carrying out the wire rod compacting, to carry out the premix of metal component and ceramic composition earlier, and then mix with organic forming agent silicon rubber.Because organic forming agent silicon rubber consumption is less relatively,, take the Forced Mixing mode for realizing metal component and the homodisperse of ceramic composition in organic forming agent silicon rubber; Put into mould behind the material mixing, the pressing speed of control extrusion equipment keeps wire rod coiling speed synchronous with it, guarantees that wire rod can evenly extrude and twine.In order to improve wire rod intensity, vulcanize and drying; At first, wire rod natural vulcanization 5～6 hours is dried processing then under 130～150 ℃; The compacting finish after, the composition of wire rod is detected, the wire rod composition will meet product requirement, detect qualified after, encapsulate preservation.
Characteristics of the present invention: described flexible wire has anticorrosion, wear-resisting, anti-attrition, high temperature resistance, performance such as anti-oxidant, heat insulation.Owing to before carrying out the wire rod compacting, will carry out the premix of metal component and ceramic composition earlier, and then mix, overcome two kinds of components and be easy to generate component segregation, the instability of the inhomogeneous and performance of the coating micro-area composition that causes with organic forming agent silicon rubber.Efficiently solve the uniform mixing and mutual scattering problem of two kinds of components, and then guaranteed the performance of coating.Adopt the coating of this wire rod preparation, have the multilayered structure characteristic, thereby cushioned the transition between bottom and the surface layer, effectively improved in traditional bilayer structure, owing to existing sharp interface to be easy to peel off between intermediate metal and the ceramic topcoats, the shortcoming that causes coating to lose efficacy.
Description of drawings:
Fig. 1 flame plating preparation method's schema of flexible wire
Embodiment:
With reference to Fig. 1, flame plating with flexible wire and preparation method be that organic forming agent silicon rubber is 8～16%, metal component be 42～46% and ceramic composition be 42～46%; To carry out strict control to the granularity of metal component and ceramic composition, described metal component require the metal powder granularity be+260 order proportions reach-320 order proportions less than 5% ,-260～+ 320 order proportions less than 40% should be greater than 50%; Described ceramic composition require the ceramic powder granularity be+260 order proportions reach-320 order proportions less than 2% ,-260～+ 320 order proportions less than 10% should be greater than 90%, its preparation method is realized by following step:
The material preparation
The selected organic forming agent of the present invention is a kind of silicon rubber.This organic forming agent silicon rubber at room temperature is liquid, need not heat in moulding process, pressurize and can solidify, and technological operation is very convenient, and the use temperature scope is at-60～250 ℃.
Table one: some main performance index of silicon rubber
| Project | Technical indicator |
| Outward appearance | The white flowable liquids |
| Viscosity (Pas) | 0.5～2.0 |
| Fugitive constituent (%) | ≤2.0 |
| Tensile strength (MPa) | ≥0.5 |
| Elongation (%) | ≥110 |
The metal component that the present invention adopts is that main component is Ni, Al and W by the powdered alloy of aerosolization method preparation, and ceramic composition is mainly aluminum oxide and chromic oxide, and principal crystalline phase is α-Al
2O
3, carry out the preparation of stupalith by the high temperature sintering method.In wire rod, metal component mixes with the subparticle form with ceramic composition, to realize the uniformity consistency of wire rod component.In order to guarantee the performance of coating, to carry out strict control to the granularity of these two kinds of components.
Table two: metal component chemical ingredients
| Element | Al | W | Cr | Ni |
| Content (%) | 25～30 | 2～3 | 1～2 | Surplus |
Table three: metal powder granularity
| Granularity (order) | +260 | -260～+320 | -320 |
| Content (%) | ＜5 | ＜40 | ＞50 |
Table four: ceramic powder chemical ingredients
| Composition | Cr 2O 3 | Fe 2O 3 | SiO 2 | TiO 2 | Al 2O 3 |
| Content (%) | 3～5 | ≤1.0 | ≤0.5 | 1～2 | Surplus |
Table five: ceramic powder granularity
| Granularity (order) | +260 | -260～+320 | -320 |
| Content (%) | ＜2 | ＜10 | ＞90 |
The wire rod preparation
The wire rod that the present invention developed, component comprise organic forming agent silicon rubber, metal component and ceramic composition.
Table six: the composition proportion of wire rod
| Component | Forming agent | Metal component | Ceramic composition |
| Ratio (%) | 8～16 | 42～46 | 42～46 |
In order to guarantee coating performance, the uniform distribution of wire rod composition is most important.
Before carrying out the wire rod compacting, to carry out the premix of metal component and ceramic composition earlier, and then mix with organic forming agent silicon rubber.Because organic forming agent silicon rubber consumption is less relatively,, take the Forced Mixing mode therefore in order to realize metal component and the ceramic composition homodisperse in organic forming agent silicon rubber.
Compound with good plasticity is put into mould, and the pressing speed of control extrusion equipment, and the wire rod that matches with it coiling speed guarantee that wire rod can evenly extrude and twine.
In order to improve wire rod intensity, carry out suitable sulfuration and drying.At first, wire rod natural vulcanization 5～6 hours is dried processing then under 130～150 ℃.
After compacting is finished, the composition of wire rod is detected, the wire rod composition will meet product requirement.Detect qualified after, encapsulate preservation.
Gauge or diameter of wire is controlled at 4.0～4.3mm, requires smooth surface simultaneously, thereby satisfies the requirement of flame plating technology.In order to prepare qualified wire rod, Mould design processing is extremely important, and mould requires to have higher precision.In the wire rod pressing process, the grasp of mixing time, the control of pressing speed etc. also is unusual significant effects factor.
Embodiment 1:
Composition proportion:
| Component | Forming agent | Metal component | Ceramic composition |
| Ratio (%) | 8 | 46 | 46 |
The wire rod compacting:
| Operating parameters | Pressing speed (m/min) | Forming pressure (MPa) | Gauge or diameter of wire (mm) |
| Numerical value | 2.1 | 0.4 | 4.20 |
Embodiment 2:
Composition proportion:
| Component | Forming agent | Metal component | Ceramic composition |
| Ratio (%) | 9 | 45.5 | 45.5 |
The wire rod compacting:
| Operating parameters | Pressing speed (m/min) | Forming pressure (MPa) | Gauge or diameter of wire (mm) |
| Numerical value | 2.2 | 0.4 | 4.22 |
Embodiment 3:
Composition proportion:
| Component | Forming agent | Metal component | Ceramic composition |
| Ratio (%) | 12 | 44 | 44 |
The wire rod compacting:
| Operating parameters | Pressing speed (m/min) | Forming pressure (MPa) | Gauge or diameter of wire (mm) |
| Numerical value | 2.0 | 0.4 | 4.16 |
Embodiment 4:
Composition proportion:
| Component | Forming agent | Metal component | Ceramic composition |
| Ratio (%) | 13 | 43.5 | 43.5 |
The wire rod compacting:
| Operating parameters | Pressing speed (m/min) | Forming pressure (MPa) | Gauge or diameter of wire (mm) |
| Numerical value | 2.6 | 0.45 | 4.12 |
Embodiment 5:
Composition proportion:
| Component | Forming agent | Metal component | Ceramic composition |
| Ratio (%) | 16 | 42 | 42 |
The wire rod compacting:
| Operating parameters | Pressing speed (m/min) | Forming pressure (MPa) | Gauge or diameter of wire (mm) |
| Numerical value | 2.4 | 0.36 | 4.10 |
Claims (8)
1. a flame plating flexible wire is characterized in that, it is to mix by following weight percent: organic forming agent silicon rubber is 8～16%, metal component be 42～46% and ceramic composition be 42～46%; To carry out strict control to the granularity of metal component and ceramic composition, described metal component require the metal powder granularity be+260 order proportions reach-320 order proportions less than 5% ,-260～+ 320 order proportions less than 40% should be greater than 50%; Described ceramic composition require the ceramic powder granularity be+260 order proportions reach-320 order proportions less than 2% ,-260～+ 320 order proportions less than 10% should be greater than 90%.
2. a kind of flame plating flexible wire according to claim 1 is characterized in that, it is to mix by following weight percent: organic forming agent silicon rubber is 8%, metal component be 46% and ceramic composition be 46%.
3. a kind of flame plating flexible wire according to claim 1 is characterized in that, it is to mix by following weight percent: organic forming agent silicon rubber is 9%, metal component be 45.5% and ceramic composition be 45.5%.
4. a kind of flame plating flexible wire according to claim 1 is characterized in that, it is to mix by following weight percent: organic forming agent silicon rubber is 12%, metal component be 44% and ceramic composition be 44%.
5. a kind of flame plating flexible wire according to claim 1 is characterized in that, it is to mix by following weight percent: organic forming agent silicon rubber is 13%, metal component be 43.5% and ceramic composition be 43.5%.
6. a kind of flame plating flexible wire according to claim 1 is characterized in that, it is to mix by following weight percent: organic forming agent silicon rubber is 16%, metal component be 42% and ceramic composition be 42%.
7. according to each described a kind of flame plating flexible wire among the claim 1-6, it is characterized in that the main component of described metal component is Ni, Al and W; Described ceramic composition is mainly aluminum oxide and chromic oxide, and principal crystalline phase is α-Al
2O
3
8. use the preparation method of flexible wire according to each described a kind of flame plating among the claim 1-6, realize by following step:
1), material preparation
Adopt silicon rubber as organic forming agent; This organic forming agent silicon rubber at room temperature is liquid, and it is promptly curable to need not to heat in moulding process, pressurize; Metal component is that main component is Ni, Al and W by the powdered alloy of aerosolization method preparation; The ceramic composition main component is aluminum oxide and chromic oxide, and principal crystalline phase is α-Al
2O
3, carry out the preparation of stupalith by the high temperature sintering method;
In wire rod, metal component mixes with the subparticle form with ceramic composition, to realize the uniformity consistency of wire rod component, in order to guarantee the performance of coating, to carry out strict control to the granularity of these two kinds of components, described metal component require the metal powder granularity be+260 order proportions reach-320 order proportions less than 5% ,-260～+ 320 order proportions less than 40% should be greater than 50%; Described ceramic composition require the ceramic powder granularity be+260 order proportions reach-320 order proportions less than 2% ,-260～+ 320 order proportions less than 10% should be greater than 90%;
2), wire rod preparation
With above-mentioned organic forming agent silicon rubber, metal component and ceramic composition, before carrying out the wire rod compacting, to carry out the premix of metal component and ceramic composition earlier, and then mix with organic forming agent silicon rubber; Because organic forming agent silicon rubber consumption is less relatively,, take the Forced Mixing mode for realizing metal component and the homodisperse of ceramic composition in organic forming agent silicon rubber; Put into mould behind the material mixing, the pressing speed of control extrusion equipment keeps wire rod coiling speed synchronous with it, guarantees that wire rod can evenly extrude and twine; In order to improve wire rod intensity, vulcanize and drying; At first, wire rod natural vulcanization 5～6 hours is dried processing then under 130～150 ℃; The compacting finish after, the composition of wire rod is detected, the wire rod composition will meet product requirement, detect qualified after, encapsulate preservation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510047857XA CN100410415C (en) | 2005-11-29 | 2005-11-29 | Flexible wire material for flame spray coating and preparing method therefor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510047857XA CN100410415C (en) | 2005-11-29 | 2005-11-29 | Flexible wire material for flame spray coating and preparing method therefor |
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|---|---|
| CN1775995A CN1775995A (en) | 2006-05-24 |
| CN100410415C true CN100410415C (en) | 2008-08-13 |
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| CNB200510047857XA Expired - Fee Related CN100410415C (en) | 2005-11-29 | 2005-11-29 | Flexible wire material for flame spray coating and preparing method therefor |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101177771B (en) * | 2007-12-06 | 2011-06-08 | 北京矿冶研究总院 | Multi-component thermal spraying flexible wire and preparation method thereof |
| RU2443554C1 (en) * | 2010-07-29 | 2012-02-27 | Государственное образовательное учреждение высшего профессионального образования Омский государственный университет путей сообщения | Method of centrifugal building up of polymer layer inside metal sleeve |
| CN105385898B (en) * | 2015-11-20 | 2017-09-26 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of preparation method of flexible wire used for hot spraying |
| CN106591759A (en) * | 2016-11-29 | 2017-04-26 | 沈阳黎明航空发动机(集团)有限责任公司 | Preparation method of novel thermal spraying ceramic-based flexible wire |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1232802A (en) * | 1999-05-28 | 1999-10-27 | 清华大学 | Preparation of oxide ceramic bar for flame spraying |
| WO2004098792A1 (en) * | 2003-05-06 | 2004-11-18 | Yasuhiro Mori | Method for surface preparation of solid substances and surface-prepared solid substances |
| CN1594641A (en) * | 2004-06-23 | 2005-03-16 | 哈尔滨工业大学 | Flame spraying method for high melting metal skin flexible ceramic wire |
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2005
- 2005-11-29 CN CNB200510047857XA patent/CN100410415C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1232802A (en) * | 1999-05-28 | 1999-10-27 | 清华大学 | Preparation of oxide ceramic bar for flame spraying |
| WO2004098792A1 (en) * | 2003-05-06 | 2004-11-18 | Yasuhiro Mori | Method for surface preparation of solid substances and surface-prepared solid substances |
| CN1594641A (en) * | 2004-06-23 | 2005-03-16 | 哈尔滨工业大学 | Flame spraying method for high melting metal skin flexible ceramic wire |
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| CN1775995A (en) | 2006-05-24 |
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