CN104550981A - Method for preparing nanometer CeO2/Zn (cerium oxide/zinc) metal-based composite material in zinc galvanizing layer - Google Patents
Method for preparing nanometer CeO2/Zn (cerium oxide/zinc) metal-based composite material in zinc galvanizing layer Download PDFInfo
- Publication number
- CN104550981A CN104550981A CN201310507916.1A CN201310507916A CN104550981A CN 104550981 A CN104550981 A CN 104550981A CN 201310507916 A CN201310507916 A CN 201310507916A CN 104550981 A CN104550981 A CN 104550981A
- Authority
- CN
- China
- Prior art keywords
- ball milling
- zinc
- powder
- composite material
- ceo2
- 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
Abstract
The invention discloses a method for preparing a nanometer CeO2/Zn (cerium oxide/zinc) metal-based composite material in a zinc galvanizing layer. The method comprises the following steps of mixing a pure Zn powder with granularity of 47-100m and a CeO powder with average granularity of 30nm according to the weight ratio of 8:1 (wt%), and performing ball milling in a self high-efficiency ball milling machine; using stainless steel balls with diameters of 3mm, 6mm and 10mm as ball milling mediums, wherein the proportion of the three types of steel balls is 3:6:10, and the ratio of ball materials is 30:1 (wt%); before ball milling, sucking vacuum, performing ball milling on the mixed powder under the argon protecting state, setting the rotation speed of the ball milling machine as 120r/min, and sampling after different times. The method has the advantages that the high-efficiency ball milling and the powder metallurgical sintering are the effective methods for preparing the nanometer CeO2/Zn composite material; after detecting by XRD (X-ray diffraction) and FESEM (field emission scanning electron microscopy), the new alloy phase is not generated in the ball milling and hot pressing sintering processes, namely that the nanometer CeO2/Zn and Al composite material is obtained; the structure is uniform, and the property is stable.
Description
Technical field
The invention belongs to alloy cast iron casting technology field, be specifically related to a kind of ceria nanopowder/Zn metal-base composites applied in zinc coating.
Background technology
Zinc coating is for preventing the corrosion of steel product, and the history of existing more than 200 year, so far, it still occupies an important position in ferrous materials underseal.Depend on the anti-corrosion capability of coating the service life of zinc coating, the anti-corrosion capability of coating is stronger, then the service life of coating is longer.Along with the needs of growing science technology and economy, the anti-corrosion capability how better improving coating is had higher requirement to coating material.Along with the developmental research to rare earth material, people recognize its superiority gradually, and are applied in different field.The eighties in 20th century, Hinton and Wilson have studied the corrosion inhibition of rare earth to pure zinc first, find that the CeCL3 of 1.0g/L can make the corrosion rate of pure zinc be reduced to original 1/10, make the corrosion rate of electrogalvanizing be reduced to original 1/2, after corrosion test, pure zinc and electrogalvanizing surface define the film of one deck yellow.Afterwards, Hinton further study the composition and structure of the rare-earth conversion coatings on pure zinc and electrogalvanizing surface, find that in film, main component is CeO2 and Zn, and Ce is present in film with tetravalent form.Associate professor Guo Zhongcheng of Kunming University of Science and Technology delivered one section " rare earth is on impact of composite depositing process and coating performance " in " Acta Metallurgica Sinica " of the 5th phase in 1996, have studied the impact of rare earth on Ni-SiC composite depositing process and coating performance.Result shows, adds appropriate rare earth and can improve the content of particulate in composite deposite, hardness and wearability significantly.There are some researches show, it is as follows to add the rare earth oxide ceo2 effect of producing: 1. rare earth element refinement heterogeneous microstructure, reduction second-phase tree spacing and coating inclusion content; 2. rare earth element to add the minimizing diffusion of coating metal material on matrix be effectively; 3. rare earth element can increase the angle of diffraction, reduces interplanar distance and lattice constant; 4. rare earth element add raising corrosion resistance, passivation significantly improves, and corrosion rate obviously reduces.But rare earth element also shows slightly not enough, so technique also fails to obtain extensive use aborning for reduction corrosion of coating rate amplitude compared with the desired value of people.
Summary of the invention
The invention provides and be a kind ofly manufactured on the method receiving CeO2/Zn metal-base composites applied in zinc coating, because, nano rare earth powder is because its granularity is very tiny, specific surface energy is large especially, usually aggregating state is in, if it is directly joined in galvanizing plating solution, its agglomeration by even more serious, but also can produce segregation.For this reason, intend adopting powder metallurgy process first to prepare ceria nanopowder/Zn composite, as intermediate, ceria nanopowder is brought in galvanizing plating solution.But for conventional powder metallurgical method, uniformity of mixture depends on the difference of two kinds of powder sizes to a great extent, and the particle diameter of ceria nanopowder powder and pure zinc powder differs greatly, this uniformity just determining mixture of powders is poor; And CeO_2 nanoparticles is again in aggregating state, is uniformly distributed so be difficult to realize the disperse of CeO_2 nanoparticles in Zinc Matrix.For addressing this problem, key first prepares uniform ceria nanopowder/Zn composite powder.A kind of important process method that high-energy ball milling is prepared as material, is subject to the attention of domestic and international material supply section educational circles day by day.Particularly in nanometer material science and technical field, the research that relevant high-energy ball milling method prepares nano metal, nanocrystalline intermetallics material, nano composite material, non-crystalline material, nano ceramics etc. is a lot, and makes great progress.Author adopt high-energy ball milling method successfully prepare CeO_2 nanoparticles disperse evenly coated, be embedded in ceria nanopowder/Zn composite powder on zinc particle, and studied in great detail composition, the microscopic appearance of powder by XRD, SEM.
Method is the pure of 47 ~ 100 m by granularity
znpowder and particle mean size are 30nm's
ceOpowder, after mixing, carries out ball milling by weight (wt%) 8:1 in homemade high energy ball mill.Adopt 3mm, 6mm and 10mm stainless steel ball to make ball-milling medium, three kinds of steel ball matchings are 3:6:10, and ratio of grinding media to material (wt%) is 30:1; First vacuumize before ball milling, then ball milling mixed-powder under argon shield state, drum's speed of rotation is 120 r/min, samples after different time.
Hot pressing parameters
zn-CeO2(0.1%): 1 450 r/min 2 h; 9 t 2 h 370 DEG C 6 DEG C/min encloseds
zn-CeO, (1%): 1 450 r/min 2h; 9 t 2 h 370 DEG C 6 DEG C/min encloseds
zn-CeO, (5%): 1 450 r/min 2h; 9 t 2 h 370 DEG C 6 DEG C/min encloseds
Ceria nanopowder/Zn metal-base composites that production provided by the invention is applied in zinc coating, its beneficial effect is:
High-energy ball milling and powder metallurgy sintered be the effective ways preparing nano-cerium oxide/zinc composite,
xRDwith
fESEMdetection shows, does not produce new alloy phase, namely obtain nanometer in ball milling and hot pressed sintering process
ceO2/Zn, Alcomposite, and its even structure, stable performance.
As replaced simple kirsite using this rare earth metal based nano composite material as intermediate alloy, being used in steel and iron parts surface and implementing hot-dip, the decay resistance of zinc coating can be significantly improved, in addition, high-energy ball milling method preparation technology is simple, with low cost, easily realizes heavy industrialization application.
Detailed description of the invention
Below in conjunction with embodiment, to ceria nanopowder/Zn metal-base composites of applying in zinc coating provided by the invention and production method thereof, be described in detail.
Embodiment one
Be pure Zn powder and the particle mean size of 47 ~ 100 m by granularity be 30 nm's
ceOpowder, after mixing, carries out ball milling by weight (wt%) 8:1 in homemade high energy ball mill.Ball-milling medium made by employing 3mm, 6 mm and 10mm stainless steel balls, and three kinds of steel ball matchings are 3:6:10, and ratio of grinding media to material (wt%) is 30:1; First vacuumize before ball milling, then ball milling mixed-powder under argon shield state, drum's speed of rotation is 120 r/min, samples after different time.
Hot pressing parameters
zn-CeO2(0.1%): 1 450 r/min 2 h; 9 t 2 h 370 DEG C 6 DEG C/min encloseds
zn-CeO, (1%): 1 450 r/min 2h; 9 t 2 h 370 DEG C 6 DEG C/min encloseds
zn-CeO, (5%): 1 450 r/min 2h; 9 t 2 h 370 DEG C 6 DEG C/min encloseds
Hot-press equipment: the equipment that this test adopts is vacuum hotpressing stove; be the vertical vacuum resistance furnace making heater with graphite, have the two column frame of frame-type outward, have hydraulic jack to be elevated as pressure source below; can supply Preparation of Refractory Metal Compounds, pottery etc. heats pressing component in vacuum or protective atmosphere.The technical specification of vacuum hotpressing stove: specified 50kW, 30kW, supply voltage 380V, heater voltage 36V, 28V, rated temperature 2000 DEG C, maximum pressure 20t, pressure head diameter phi 85 mm, hydraulic stroke 100 mm, vacuum degree of cold state 0.001 Pa, work 200mm X 160 mm, 120 mm X 120 mm.Structure brief introduction: body of heater is vertical furnace, the cylinder that its layer is made for 1Crl8Ni9, shell is that carbon steel is made.Form chuck between two-layer and can lead to cooling water, the heat passing to furnace shell inwall is taken away.There is pressure head above bell, pressure sensor and hold down gag, can be elevated.In stove, heat screen is made up of molybdenum sheet and lCr18Ni9 plate, and innermost layer is graphite, and bottom thermal insulation screen is made up of graphite.Hydraulic pressure framework is made up of entablature, base, long column, grate etc.Hydraulic jack is contained in the middle of base, and hydraulic oil is entered oil cylinder by reversal valve by oil hand pump, and oil cylinder is elevated.Vacuum system is the compositions such as k 1 oil diffusion pump (nominal displacement 1500 L/s), 2X 1 rotary vane mechanical pump and vacuum valve.The measurement of vacuum, is measured by coil component spring vacuum meter within the scope of black vacuum, by thermocouple vacuum gauge during low vacuum, is measured during high vacuum by ion gauge.This instrument uses 380V single phase poaer supply, by step-down transformer, reduces to 36V (28V), is then delivered on electrode by cable.
Claims (1)
1. one kind is manufactured on the method receiving CeO2/Zn metal-base composites applied in zinc coating, it is characterized in that: the CeO powder of to be the pure Zn powder of 47 ~ 100 m and particle mean size by granularity be 30 nm, after mixing by weight (wt%) 8:1, in homemade high energy ball mill, carry out ball milling; Adopt 3mm, 6mm and 10mm stainless steel ball to make ball-milling medium, three kinds of steel ball matchings are 3:6:10, and ratio of grinding media to material (wt%) is 30:1; First vacuumize before ball milling, then ball milling mixed-powder under argon shield state, drum's speed of rotation is 120 r/min, samples after different time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310507916.1A CN104550981A (en) | 2013-10-25 | 2013-10-25 | Method for preparing nanometer CeO2/Zn (cerium oxide/zinc) metal-based composite material in zinc galvanizing layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310507916.1A CN104550981A (en) | 2013-10-25 | 2013-10-25 | Method for preparing nanometer CeO2/Zn (cerium oxide/zinc) metal-based composite material in zinc galvanizing layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104550981A true CN104550981A (en) | 2015-04-29 |
Family
ID=53068639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310507916.1A Pending CN104550981A (en) | 2013-10-25 | 2013-10-25 | Method for preparing nanometer CeO2/Zn (cerium oxide/zinc) metal-based composite material in zinc galvanizing layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104550981A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728733A (en) * | 2016-02-26 | 2016-07-06 | 龙岩学院 | Method for preparing nanometer Co-CeO2 composite powder through mechanical alloying |
| CN111826598A (en) * | 2020-07-28 | 2020-10-27 | 攀钢集团研究院有限公司 | Wear-resistant corrosion-resistant zinc-aluminum-magnesium coated steel plate and preparation method thereof |
| CN112542912A (en) * | 2020-12-22 | 2021-03-23 | 石狮市星盛五金制品有限公司 | Motor end cover and preparation process thereof |
| CN113046671A (en) * | 2021-03-11 | 2021-06-29 | 南京工程学院 | Nano CeO2Method for enhancing corrosion resistance of ZnAl-based composite material |
-
2013
- 2013-10-25 CN CN201310507916.1A patent/CN104550981A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728733A (en) * | 2016-02-26 | 2016-07-06 | 龙岩学院 | Method for preparing nanometer Co-CeO2 composite powder through mechanical alloying |
| CN111826598A (en) * | 2020-07-28 | 2020-10-27 | 攀钢集团研究院有限公司 | Wear-resistant corrosion-resistant zinc-aluminum-magnesium coated steel plate and preparation method thereof |
| CN112542912A (en) * | 2020-12-22 | 2021-03-23 | 石狮市星盛五金制品有限公司 | Motor end cover and preparation process thereof |
| CN113046671A (en) * | 2021-03-11 | 2021-06-29 | 南京工程学院 | Nano CeO2Method for enhancing corrosion resistance of ZnAl-based composite material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Li et al. | Study on the formation of core–rim structure in Ti (CN)-based cermets | |
| CN109161774A (en) | Haystellite and preparation method thereof by high-entropy alloy as binder | |
| CN104550981A (en) | Method for preparing nanometer CeO2/Zn (cerium oxide/zinc) metal-based composite material in zinc galvanizing layer | |
| Zhang et al. | Microstructures and mechanical properties of Mo2FeB2-based cermets prepared by two-step sintering technique | |
| Kumar et al. | Development of nano-crystalline cold sprayed Ni–20Cr coatings for high temperature oxidation resistance | |
| Ren et al. | High-temperature cyclic oxidation behavior of Al2O3–YAG composite coating prepared by EPD and microwave sintering | |
| CN108998716A (en) | A kind of preparation method of electric arc deposited powder cored filament material and its high entropy alloy coating | |
| CN103374684A (en) | Aluminum oxide containing dispersion strengthening ferrite steel and preparation method thereof | |
| Yan et al. | High-temperature oxidation and wear resistance of WC-Co based coatings with WB addition | |
| CN104141122B (en) | A kind of metal base surface aluminum oxide coating layer and preparation method thereof | |
| Yan et al. | Synthesis of nano-diamond/alumina composite by detonation method | |
| Kasada et al. | Sol–gel composite coatings as anti-corrosion barrier for structural materials of lead–bismuth eutectic cooled fast reactor | |
| Gupta et al. | Effect of cobalt oxide doping on the corrosion behavior of iron-alumina metal matrix nanocomposites | |
| Tyrpekl et al. | Synthesis of dense yttrium-stabilised hafnia pellets for nuclear applications by spark plasma sintering | |
| CN103357867B (en) | A kind of Scale-like multi-component zinc aluminum silicon alloy powder and preparation method thereof | |
| CN100494058C (en) | Process for preparing high-density zirconium diboride blocks by spark plasma sintering | |
| CN106631009A (en) | Composite powder for zirconium boride based composite material and preparation method of composite powder | |
| Wang et al. | The production of in situ (Mo, Ti)(C, N)-based cermets without a core/rim structure by reaction hot pressing: formation mechanism and mechanical properties | |
| Dou et al. | Preliminary study on nano-and micro-composite sol–gel based alumina coatings on structural components of lead–bismuth eutectic cooled fast breeder reactors | |
| CN106756231B (en) | A kind of nanocrystalline titanium alloy fastener preparation method | |
| CN102021570B (en) | Treatment process for forming SiO2 coating/Ni-Si alloyed layer composite structure on surface of cold-rolled mild steel plate | |
| CN103406539B (en) | Scale-like multi-component zinc aluminum silicon alloy powder containing Ce and Pr and preparation method thereof | |
| CN103046042A (en) | Reaction nitrogen arc melting coating preparation method of titanium carbonitride/iron-based alloy composite coating | |
| CN105624535A (en) | Preparation method for Fe-Al-Mn-Si alloy | |
| CN105624537B (en) | The preparation method of Fe Al Mn Zr alloys |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |
|
| WD01 | Invention patent application deemed withdrawn after publication |