CN101229699B - Lacunaris metal carrier and manufacturing method thereof - Google Patents
Lacunaris metal carrier and manufacturing method thereof Download PDFInfo
- Publication number
- CN101229699B CN101229699B CN2007100343177A CN200710034317A CN101229699B CN 101229699 B CN101229699 B CN 101229699B CN 2007100343177 A CN2007100343177 A CN 2007100343177A CN 200710034317 A CN200710034317 A CN 200710034317A CN 101229699 B CN101229699 B CN 101229699B
- Authority
- CN
- China
- Prior art keywords
- metal
- metal layer
- coating
- preparation
- lacunaris
- 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.)
- Active
Links
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses a porous metal carrier and a preparation method thereof. The porous metal carrier has a continuous micro-porous structure formed through mutual connection of polyhedron cabinets; a first layer is a substrate metal layer which comprises one or a plurality of the compositions: nickel, iron or copper; metal quantity of the substrate metal layer is more than or equal to 100g/m<2>; a function metal coating of MCrAl or MCrAlR is arranged on the substrate metal layer and M refers to Fe, Ni and Co or alloy of Fe, Ni and Co and R is rare earth element. The preparation method includes the following steps: first, metallization pretreatment is carried out for nonmetal porous substrate to form the substrate metal layer; second, the function metal layer with chromium and aluminum are sprayed on the substrate metal layer by adopting a thermal spraying process; at last, flame remelt and induction remelt are carried out for the function coating. The material provided by the invention has high porosity, large surface area, high strength, favorable flow disturbance, excellent high temperature and oxidization resistance, simple preparation method and process and low cost.
Description
Technical field
The present invention relates to a kind of alloy material and preparation method thereof, particularly relate to a kind of Lacunaris metal carrier and preparation method thereof.
Background technology
In tail gas cleaner for motor-driven vehicle, most domestic adopts the ceramic honeycomb material as the tai-gas clean-up catalyst carrier at present, and generally adopts the metal beehive material abroad.Compare with ceramic monolith, metallic carrier has following advantage: 1) thermal capacity is little, and thermal conductivity is high, and the tail gas ignition is rapid; 2) mechanical strength is good, and shockproof properties is good, long service life; 3) percent opening is high, and exhaust back pressure is low, helps improving engine performance, good economy performance; 4) structure is various, and specific area is high, can effectively improve catalytic activity and tail gas clean-up rate.Along with country is more and more stricter to the automotive emission standard-required, metal beehive carrier will progressively replace ceramic honeycomb carrier.
At present both at home and abroad generally via the rolling technological forming such as soldering assembling that rolls of metal foil, cost is high for metallic carrier, and simultaneously in order to guarantee the processing characteristics of foil, chromium aluminium restricted levels has been sacrificed its high temperature oxidation resistance.Straight, the smooth surface through the metallic carrier duct of roll forming causes catalyst poor adhesive force, unit volume specific area little, thereby has limited the service efficiency of catalyst.
Summary of the invention
The present invention aims to provide the Lacunaris metal carrier that a kind of porosity is high, the unit volume specific area is big, flow perturbation property is good, pyro-oxidation resistance is good, the catalyst service efficiency is high, and the preparation method that a kind of technology is simple, cost is low is provided.
Technical scheme of the present invention is following:
The mesoporous metal carrier structure is following more than the present invention: have through the polyhedron cell and interconnect the continuous microcellular structure that forms; Ground floor is the parent metal layer; The parent metal layer comprises one or more in the following metal: nickel, iron or copper, the amount of metal>=100g/m of parent metal layer
2Be the function metal coating of MCrAl or MCrAlR on the parent metal layer, wherein M is Fe, Ni, Co or their alloy, and R is a rare earth element.
The preferred 30 μ m of the thickness of described function metal coating～300 μ m.
The weight of chromium preferably accounts for 12%～28% of total coating weight in the said function metal coating; The weight of aluminium preferably accounts for 2%～7% of total coating weight.
Preparation method of the present invention may further comprise the steps: at first to the preliminary treatment of metallizing of the nonmetal porous substrate of toughness; Form the parent metal layer; Adopt hot-spraying technique on the parent metal layer, to spray the function metal coating of MCrAl or MCrAlR again, at last functional coating is carried out flame remolten or inducting remolten.Before thermal spraying, can remove the nonmetal porous substrate of toughness in advance through modes such as burning or organic reagent decomposition.
Described hot-spraying technique can adopt technologies such as electric arc spraying, flame-spraying; Selecting diameter for use is the metal wire material of forming with formed function metal coating of 1.6～2.0mm; Wire feed rate 1.0～2.0m/min, gas pressure are 0.5MPa～0.8MPa, and spray distance is 100～250mm.The temperature of described flame remolten or inducting remolten is preferably 1500 ℃～3000 ℃.The nonmetal porous substrate of described toughness can be selected a kind of in the following material for use: nonwoven, polyester sponge, polyethers sponge, cotton, chemical & blended fabric, fleece, cloth.The metallization preliminary treatment can be adopted the non-metallic substrate metallization process of present routine, like chemical plating and composite electroplated technology, physical vapour deposition (PVD) and composite electroplated technology etc., the parent metal layer of plating q.s on the nonmetal porous substrate of toughness.
Compare with material of prior art and preparation method thereof; The present invention has the following advantages: the function metal coating of hole composite material has overcome metal material sludge proof defective not at high temperature more than (1) the present invention; 1000 ℃ of insulations 2 hours, its oxidation weight gain was no more than 6%～10%; (2) the hole composite material is compared with the metal foil through roll forming more than the present invention, and it is three-dimensional porous structure, and porosity is very high; Generally more than 85%, the specific area of material unit volume is very big, the duct rough surface; Therefore, when being used as the tai-gas clean-up catalyst carrier of automobile, the adhesive force of catalyst is good; The perturbation of air-flow in carrier is good, and tail gas is the contact carrier surface fully, improves the utilization rate and the effect of catalyst: (3) preparation method of the present invention; Owing to adopt the nonmetal porous substrate of toughness as foraminous die plate, obtain three-dimensional porous structure easily; Compare with the preparation mechanical method of rolled metal foil, need not to use a large amount of machining moulding equipment, needn't adopt the block of metal foil, simplified preparation technology greatly, reduced cost, the raising owing to aluminium content has simultaneously strengthened the coating high temperature oxidation resistance.
The specific embodiment
Below in conjunction with embodiment the present invention is done further explain, but these embodiment must not be used to explain the restriction to protection domain of the present invention.
Embodiment 1
The Lacunaris metal carrier of present embodiment has through the polyhedron cell and interconnects the continuous microcellular structure that forms, and the parent metal layer is a dilval, amount of metal 1500g/m
2Be FeCrAl function metal coating on the parent metal layer, the thickness of coating is 30 μ m, and chromium accounts for 12% of gross weight in the coating, and aluminium accounts for 2%.
The preparation method: at first adopt the process integration of chemical nickel plating-ferro-nickel alloy electroplating, plating parent metal layer on the polyester sponge substrate, amount of metal is 1500g/m
2Adopt flame heat spray technology on the parent metal layer, to spray FeCrAl function metal coating again, selecting diameter during thermal spraying for use is the FeCrAl wire of 1.6mm, and chromium accounts for 12% of gross weight in the wire; Aluminium accounts for 2% of gross weight; Surplus is an iron, and wire feed rate 2.0m/min, gas pressure are 0.5MPa; Spray distance is 100mm, stops wire feed after being sprayed into thickness 30 μ m; At last functional coating is carried out flame remolten at 1500 ℃ more than the temperature.
Through detecting, the porosity of this composite reaches 95%, at 1000 ℃ of insulations 2 hours, its oxidation weight gain about 8.8%.
Embodiment 2
Mesoporous metal alloy material more than the present embodiment, parent metal layer are the ambrose alloy ferroalloy, amount of metal 500g/m
2Be NiCrAl function metal coating on the parent metal layer, the thickness of coating is 100 μ m, and chromium accounts for 20% of gross weight, and aluminium accounts for 4%.
The preparation method: at first adopt the process integration of electroless copper-ferro-nickel alloy electroplating, plating parent metal alloy-layer on the polyethers sponge substrate, amount of metal is 500g/m
2Burn then and remove sponge substrate; Adopt electric-arc thermal spray coating technology on the parent metal layer, to spray NiCrAl function metal coating again, it is the NiCrAl wire of 1.8mm that diameter is selected in thermal spraying for use, and chromium accounts for 20% of gross weight in the wire; Aluminium accounts for 4% of gross weight, and surplus is a nickel, wire feed rate 1.5m/min; Gas pressure 0.7MPa, spray distance 150mm, voltage 32V; Electric current 100A stops wire feed after being sprayed into thickness 100 μ m; Under 2500 ℃ of temperature, carry out flame remolten at last.
Through detecting, the porosity of this composite reaches 95%, at 1000 ℃ of insulations 2 hours, its oxidation weight gain about 7.5%.
Embodiment 3
The Lacunaris metal carrier of present embodiment, parent metal layer are the ambrose alloy ferroalloy, amount of metal 150g/m
2Be NiCrAl-Y function metal coating on the parent metal layer, the thickness of coating is 250 μ m, and chromium accounts for 15% of gross weight in the coating, and aluminium accounts for 5%, and yttrium accounts for 1%.
The preparation method: at first adopt the process integration of chemical nickel plating-electronickelling, plating parent metal nickel dam on the cotton base material, amount of metal is 150g/m
2Burn then and remove the cotton base material; Adopt electric-arc thermal spray coating technology on the parent metal layer, to spray NiCrAl-Y function metal coating again, selecting diameter during thermal spraying for use is the NiCrAl-Y wire of 2mm, and chromium accounts for 15% of gross weight in the metal wire material; Aluminium accounts for 5% of gross weight, and yttrium accounts for 1% of gross weight, wire feed rate 1.0m/min; Gas pressure is 0.8MPa, and spray distance is 200mm, voltage 30V; Electric current 200A stops wire feed after being sprayed into thickness 250 μ m; At last functional coating is carried out flame remolten under 2000 ℃ of temperature.
Through detecting, the porosity of this composite reaches 85%, at 1000 ℃ of insulations 2 hours, its oxidation weight gain about 8%.
Embodiment 4
The Lacunaris metal carrier of present embodiment has through the polyhedron cell and interconnects the continuous microcellular structure that forms, parent metal layer monel, amount of metal 100g/m
2It on the parent metal layer FeCrAl-mishmetal function metal coating.The thickness of coating is 300 μ m, and chromium accounts for 28% of gross weight in the coating, and aluminium accounts for 7%, and mishmetal accounts for 2%.
The preparation method: at first adopt the process integration of chemical nickel plating-plating cobalt, plating parent metal alloy-layer on web substrates, amount of metal is 100g/m
2Flame heat spray FeCrAl-mishmetal function metal coating on the parent metal layer again, selecting diameter during thermal spraying for use is the FeCrAl-mishmetal NiCrAl-Y wire of 1.7mm, chromium accounts for 28% of gross weight in the wire; Aluminium accounts for 7%; Mishmetal accounts for 2%, and wire feed rate 1.8m/min, gas pressure are 0.8MPa; Spray distance is 180mm, stops wire feed after being sprayed into thickness 300 μ m; At last functional coating is carried out flame remolten under 3000 ℃ of temperature.
Through detecting, the porosity of this composite reaches 95%, at 1000 ℃ of insulations 2 hours, its oxidation weight gain about 6.5%.
Claims (8)
1. Lacunaris metal carrier; It is characterized in that: have through the polyhedron cell and interconnect the continuous microcellular structure that forms; Ground floor is the parent metal layer, and the parent metal layer comprises one or more in the following metal: nickel, iron or copper, the amount of metal>=100g/m of parent metal layer
2Be the function metal coating of MCrAl or MCrAlR on the parent metal layer, wherein M is Fe, Ni, Co or their alloy, and R is a rare earth element.
2. Lacunaris metal carrier as claimed in claim 1 is characterized in that: the thickness of described function metal coating is 30 μ m～300 μ m.
3. according to claim 1 or claim 2 Lacunaris metal carrier, it is characterized in that: in the described function metal coating, the weight of chromium accounts for 12%～28% of total coating weight, and the weight of aluminium accounts for 2%～7% of total coating weight.
4. like the preparation method of claim 1 or 2 or 3 described Lacunaris metal carriers; It is characterized in that: may further comprise the steps: at first to the preliminary treatment of metallizing of the nonmetal porous substrate of toughness; Form the parent metal layer; Adopt hot-spraying technique on the parent metal layer, to spray MCrAl or MCrAlR function metal coating again, at last functional coating is carried out flame remolten or inducting remolten.
5. the preparation method of Lacunaris metal carrier as claimed in claim 4; It is characterized in that: in the described hot-spraying technique; Selecting diameter for use is that 1.6mm～2.0mm and composition are formed identical metal wire material with formed function metal coating; Wire feed rate 1.0m/min～2.0m/min, gas pressure are 0.5MPa～0.8MPa, and spray distance is 100mm～250mm.
6. like the preparation method of claim 4 or 5 described Lacunaris metal carriers, it is characterized in that: the temperature of described flame remolten or inducting remolten is 1500 ℃～3000 ℃.
7. like the preparation method of claim 4 or 5 described Lacunaris metal carriers, it is characterized in that: the nonmetal porous substrate of said toughness is a kind of in nonwoven, polyester sponge, polyethers sponge, chemical & blended fabric, fleece, the cloth.
8. the preparation method of Lacunaris metal carrier as claimed in claim 6 is characterized in that: the nonmetal porous substrate of said toughness is a kind of in nonwoven, polyester sponge, polyethers sponge, chemical & blended fabric, fleece, the cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100343177A CN101229699B (en) | 2007-01-25 | 2007-01-25 | Lacunaris metal carrier and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100343177A CN101229699B (en) | 2007-01-25 | 2007-01-25 | Lacunaris metal carrier and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101229699A CN101229699A (en) | 2008-07-30 |
| CN101229699B true CN101229699B (en) | 2012-06-27 |
Family
ID=39896646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100343177A Active CN101229699B (en) | 2007-01-25 | 2007-01-25 | Lacunaris metal carrier and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101229699B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101983757B (en) * | 2010-12-06 | 2012-12-19 | 西北有色金属研究院 | Palladium composite membrane taking multihole FeAlCr as substrate and preparation method thereof |
| CN102127731B (en) * | 2011-02-17 | 2012-06-27 | 长沙力元新材料有限责任公司 | Method for preparing porous metal substrate with high temperature oxidation resistance |
| CN102286669A (en) * | 2011-08-24 | 2011-12-21 | 吉林卓尔科技股份有限公司 | Preparation method of porous foam iron-chromium-aluminum alloy material |
| CN102492865B (en) * | 2011-12-01 | 2013-08-14 | 西北有色金属研究院 | Porous material for purifying high-temperature gas and preparation method thereof |
| CN104190918B (en) * | 2014-08-31 | 2017-01-18 | 成都易态科技有限公司 | Powder sintering porous filter alloy, preparation method thereof and pre-pressing molding body for preparing powder sintering porous filter alloy |
| CN104630635B (en) * | 2015-03-05 | 2016-08-24 | 北京绿洁美科技有限公司 | A kind of ferrum-chromium-aluminum base porous metal material and preparation method thereof |
| CN106111975A (en) * | 2016-07-27 | 2016-11-16 | 黄宇 | A kind of automobile porous metal composite material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5741556A (en) * | 1994-06-24 | 1998-04-21 | Praxair S.T. Technology, Inc. | Process for producing an oxide dispersed MCrAlY-based coating |
| CN1656251A (en) * | 2002-05-24 | 2005-08-17 | 西门子公司 | MCRAL layer |
| CN1657653A (en) * | 2005-04-01 | 2005-08-24 | 中国航空工业第一集团公司北京航空材料研究院 | High-temp. alloy surface heat barrier coating and its preparation method |
| CN1665959A (en) * | 2002-07-09 | 2005-09-07 | 西门子公司 | Highly oxidation resistant component |
-
2007
- 2007-01-25 CN CN2007100343177A patent/CN101229699B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5741556A (en) * | 1994-06-24 | 1998-04-21 | Praxair S.T. Technology, Inc. | Process for producing an oxide dispersed MCrAlY-based coating |
| CN1656251A (en) * | 2002-05-24 | 2005-08-17 | 西门子公司 | MCRAL layer |
| CN1665959A (en) * | 2002-07-09 | 2005-09-07 | 西门子公司 | Highly oxidation resistant component |
| CN1657653A (en) * | 2005-04-01 | 2005-08-24 | 中国航空工业第一集团公司北京航空材料研究院 | High-temp. alloy surface heat barrier coating and its preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101229699A (en) | 2008-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101229699B (en) | Lacunaris metal carrier and manufacturing method thereof | |
| CN1114963C (en) | Process for preparing metallic porous body, electrody substrate for battery and process for preparing the same | |
| CN109943803B (en) | Anti-corrosion composite coating of molten aluminum-silicon alloy and preparation method and application thereof | |
| KR20160010433A (en) | Electrical contact element | |
| CN101172257A (en) | Bubble iron chromium aluminum applied in vent gas filtering and catalyst carrier, and production technique thereof | |
| CN110983764B (en) | Conductive aromatic polyamide fiber with composite metal coating structure | |
| Zhang et al. | Electroless nickel plating on alumina ceramic activated by metallic nickel as electrocatalyst for oxygen evolution reaction | |
| CN102286669A (en) | Preparation method of porous foam iron-chromium-aluminum alloy material | |
| CN1244710C (en) | Porous body of composite metal and its preparing method | |
| CN103552312A (en) | Composite material with titanium diboride intermediate coating | |
| CN100357027C (en) | Metal carrier for automobile tail gas purifier catalyst and its prepn | |
| KR20170054145A (en) | Catalyst, manufacturing method of the same and fuel cell comprising the same | |
| CN102443796B (en) | Porous Fe-Al intermetallic compound coating and its preparation method | |
| CN101613813B (en) | Porous iron-based composite powder material preparation method | |
| CN102277486A (en) | Method for preparing porous foam nickel-iron-chromium alloy material | |
| Belakhmima et al. | Preparation and characterization of electroless Cu–P deposition protection for mild steel corrosion in molar hydrochloric solution | |
| CN107419243B (en) | Preparation method of open-cell foam copper-nickel composite material | |
| CN103801858A (en) | Deposition rod for electric spark deposition of TiB2-TiC multi-phase coating on surface of spot-welding electrode and manufacturing method thereof | |
| CN102888605A (en) | Al-plated CoNiCrAlY high-temperature antioxidative composite coating, and preparation method and application thereof | |
| CN110373689B (en) | Preparation of Ni-Fe-P-MnFeO by electrochemical method3Method of electrocatalyst | |
| CN102634824A (en) | Foam iron and manufacturing method thereof | |
| CN106756186A (en) | The preparation method of porous foam nickel-iron-chromium alloy material | |
| CN101824617A (en) | Process method for realizing porousness of surface of iron and steel material | |
| CN106801157A (en) | A kind of preparation method of high compactness nickel foam | |
| EP3294932B1 (en) | Method for producing a metallic coating with macro-pores, coated substrate with such a coating and use of such a substrate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210723 Address after: 410100 first floor, building 10, advanced energy storage and energy conservation demonstration Industrial Park, No. 169, Section 2, Renmin East Road, Changsha Economic and Technological Development Zone, Hunan Province Patentee after: NATIONAL ENGINEERING RESEARCH OF ADVANCED ENERGY STORAGE MATERIALS Address before: 410100 No. 6 South Xingsha Road, Changsha economic and Technological Development Zone, Hunan, China Patentee before: Hunan Corun New Energy Co.,Ltd. |
|
| TR01 | Transfer of patent right |