CN100463749C - Method for producing compounding powder by using thermal decomposition of carbonyl nickel in vibration fluidized layer - Google Patents
Method for producing compounding powder by using thermal decomposition of carbonyl nickel in vibration fluidized layer Download PDFInfo
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- CN100463749C CN100463749C CNB2006101453536A CN200610145353A CN100463749C CN 100463749 C CN100463749 C CN 100463749C CN B2006101453536 A CNB2006101453536 A CN B2006101453536A CN 200610145353 A CN200610145353 A CN 200610145353A CN 100463749 C CN100463749 C CN 100463749C
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Abstract
A process for preparing the composite powder from carbonyl nickel by hot decomposing in vibrating-boiling layer features that the reactor containing metallic crystal seeds and carbonyl nickel is arranged on a vibrating platform, and the carbonyl nickel is decomposed on the metallic crystal seeds in a vibrating-boiling layer generated by vibration to obtain the composite powder.
Description
Technical field
A kind of method of utilizing carbonyl nickel thermal decomposition production composite powder in the vibration boiling bed relates to the method that composite powder is produced in a kind of carbonyl nickel thermal decomposition.
Background technology
Nickel-base alloy and nickel composite powder are high temperature resistant, corrosion resistance makes it occupy critical role in new material development uses, and these materials are extensively used at high temperature, are grinding under collision, wearing and tearing, the DRY SLIDING piece surface of working in corrosive medium.The carbonyl nickel thermal decomposition process prepares nickel powder, coated composite powder has incomparable advantage, can reach under cryogenic conditions at coating nickel on the powder grain to coat nickel at a high speed, avoids liquid carbonyl nickel toxic effect, forms loop, does not pollute surrounding environment.People are also seeking high efficiency nickel based metal composite powder method always.
Summary of the invention
The purpose of this invention is to provide a kind of high efficiency method of in the vibration boiling bed, utilizing carbonyl nickel thermal decomposition production composite powder.
The objective of the invention is to be achieved through the following technical solutions.
A kind of method of in the vibration boiling bed, utilizing carbonyl nickel thermal decomposition production composite powder, in the production process, reactor is placed on the shaking platform, in advance metal grain is added reactor, decompose on the metal grain in the vibration boiling bed that carbonyl nickel forms under being subjected to vibration condition, obtain composite powder, the harmonic motion frequency of its shaking platform is 0～70 hertz, and amplitude is 0～20mm; It is characterized in that its production process is after reactor temperature is increased to 180～220 ℃, with the mist of carbon monoxide in the air accumulator and carbonyl nickel steam air inlet supply response device by reactor lower part, open vibrating device simultaneously, make carbonyl nickel in the mist run into that hot crystal grain begins to decompose in the vibration boiling bed, generate CO gas and metallic nickel, nickel constantly is deposited on grain surface, makes crystal grain constantly grow up and finally obtains the nickel based metal composite powder of particle diameter at 3～20 μ m.
The inventive method is utilized carbonyl nickel thermal decomposition principle, and the throughput that control enters reactor is opened vibrating device, makes mist pass the vibration boiling bed that hot crystal grain is formed, and in flow process, carbonyl nickel begins to decompose at hot grain surface.Its carbonyl nickel thermal decomposition process carries out in the loop of a sealing, can not cause toxicity and pollution effect to external environment condition.The nickel based metal composite powder that obtains has advantages such as high temperature resistant, wear-resistant, that chemical purity is high, impurity content is few.Carbonyl nickel carries out thermal decomposition in the vibration boiling bed that crystal grain is formed, improved the efficient that reaction is carried out greatly.
The specific embodiment
A kind of method of utilizing carbonyl nickel thermal decomposition production composite powder in the vibration boiling bed is connected the vertical reactor bottom with vibrator, guarantee 0～70 hertz of vertical simple harmonic oscillation frequency, amplitude 0～20mm, and the reactor top and the bottom are provided with air inlet/outlet.In advance metal grain is added reactor, after by heater reactor temperature being increased to 180～220 ℃, with the mist of carbon monoxide in the air accumulator and carbonyl nickel steam air inlet supply response device by reactor lower part, control enters the gas flow of reactor, open vibrating device simultaneously, then the carbonyl nickel in the mist runs into that hot crystal grain begins to decompose in the vibration boiling bed, generate CO gas and metallic nickel, nickel constantly is deposited on grain surface, makes crystal grain constantly grow up and finally obtains the nickel based metal composite powder of particle diameter at 3～20 μ m.
Embodiment 1
Reactor size is Φ 15mm * 120mm, 4g aluminium powder material is put into reactor, by heater reactor is heated to 180 ℃, open vibrating device, 10 hertz of vertical simple harmonic oscillation frequencies, amplitude 0～4mm feeds the mist that carbonyl nickel concentration is 5% carbonomonoxide concentration 95%, and the flow that control gas enters reactor is 0.5L/min.Behind the 10min, stop reaction, feed pure carbon monoxide gas to decomposer, flushing, and make system's cooling.Reaction finishes the back and takes out powder, the powder 5.6g that weighs and obtain the nickel metallized aluminum.
Embodiment 2
Reactor size is Φ 15mm * 120mm, 2g nickel powder material is put into reactor, by heater reactor is heated to 200 ℃, open vibrating device, 20 hertz of vertical simple harmonic oscillation frequencies, amplitude 10mm feeds the mist that carbonyl nickel concentration is 50% carbonomonoxide concentration 50%, and the flow that control gas enters reactor is 1.0L/min.Behind the 10min, stop reaction, feed pure carbon monoxide gas to decomposer, flushing, and make system's cooling.Reaction finishes the back and takes out powder, the powder 37.1g that weighs and obtain the nickel metallized aluminum.
Embodiment 3
Reactor size is Φ 15mm * 120mm, 4g aluminium powder material is put into reactor, by heater reactor is heated to 220 ℃, open vibrating device, 45 hertz of vertical simple harmonic oscillation frequencies, amplitude 10mm feeds the mist that carbonyl nickel concentration is 50% carbonomonoxide concentration 50%, and the flow that control gas enters reactor is 2L/min.Behind the 10min, stop reaction, feed pure carbon monoxide gas to decomposer, flushing, and make system's cooling.Reaction finishes the back and takes out powder, the powder 77.5g that weighs and obtain the nickel metallized aluminum.
Embodiment 4
Reactor size is Φ 15mm * 120mm, 4g aluminium powder material is put into reactor, by heater reactor is heated to 220 ℃, open vibrating device, 60 hertz of vertical simple harmonic oscillation frequencies, amplitude 20mm feeds the mist that carbonyl nickel concentration is 95% carbonomonoxide concentration 5%, and the flow that control gas enters reactor is 2L/min.Behind the 10min, stop reaction, feed pure carbon monoxide gas to decomposer, flushing, and make system's cooling.Reaction finishes the back and takes out powder, the powder 139.2g that weighs and obtain the nickel metallized aluminum.
Claims (1)
1. one kind is utilized the carbonyl nickel thermal decomposition to produce the method for composite powder in the vibration boiling bed, in the production process, reactor is placed on the shaking platform, in advance metal grain is added reactor, decompose on the metal grain in the vibration boiling bed that carbonyl nickel forms under being subjected to vibration condition, obtain composite powder; The harmonic motion frequency of its shaking platform is 0～70 hertz, and amplitude is 0～20mm; It is characterized in that its production process is after reactor temperature is increased to 180～220 ℃, with the mist of carbon monoxide in the air accumulator and carbonyl nickel steam air inlet supply response device by reactor lower part, open vibrating device simultaneously, make carbonyl nickel in the mist run into that hot crystal grain begins to decompose in the vibration boiling bed, generate CO gas and metallic nickel, nickel constantly is deposited on grain surface, makes crystal grain constantly grow up and finally obtains the nickel based metal composite powder of particle diameter at 3～20 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101453536A CN100463749C (en) | 2006-11-24 | 2006-11-24 | Method for producing compounding powder by using thermal decomposition of carbonyl nickel in vibration fluidized layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101453536A CN100463749C (en) | 2006-11-24 | 2006-11-24 | Method for producing compounding powder by using thermal decomposition of carbonyl nickel in vibration fluidized layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1947903A CN1947903A (en) | 2007-04-18 |
| CN100463749C true CN100463749C (en) | 2009-02-25 |
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| CNB2006101453536A Active CN100463749C (en) | 2006-11-24 | 2006-11-24 | Method for producing compounding powder by using thermal decomposition of carbonyl nickel in vibration fluidized layer |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717066A (en) * | 2012-06-05 | 2012-10-10 | 金川集团股份有限公司 | Method for preparing iron-coated powder |
| CN102717067A (en) * | 2012-06-05 | 2012-10-10 | 金川集团股份有限公司 | Method for preparing nickel-coated powder |
| CN110976850B (en) * | 2019-12-06 | 2022-05-17 | 成都核八五七新材料有限公司 | Method for preparing nickel-coated powder by carbonyl vapor deposition |
Citations (9)
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| US2041493A (en) * | 1933-01-24 | 1936-05-19 | Ig Farbenindustrie Ag | Pulverulent alloy |
| GB882307A (en) * | 1958-03-07 | 1961-11-15 | Union Carbide Corp | Improvements in or relating to the production of aggregates |
| US3220875A (en) * | 1961-05-01 | 1965-11-30 | Int Nickel Co | Process and apparatus for decomposing gaseous metal compounds for the plating of particles |
| US3342587A (en) * | 1964-05-25 | 1967-09-19 | Int Nickel Co | Method for the production of metal and metal-coated powders |
| US3605685A (en) * | 1965-08-25 | 1971-09-20 | Int Nickel Co | Apparatus for fluidizing and coating a particulate material |
| US3632401A (en) * | 1968-11-08 | 1972-01-04 | Ugine Kuhlmann | Process for obtaining granular solids by the decomposition of gaseous reactants |
| US4936250A (en) * | 1988-01-18 | 1990-06-26 | Inco Limited | System for coating particles employing a pneumatic transport reactor |
| CN1214979A (en) * | 1997-10-17 | 1999-04-28 | 昭荣化学工业株式会社 | Nickel powder and preparation process thereof |
| US6048578A (en) * | 1998-11-03 | 2000-04-11 | Chemical Vapour Deposition Systems, Inc. | Closed loop carbon monoxide self-contained nickel carbonyl deposition process |
-
2006
- 2006-11-24 CN CNB2006101453536A patent/CN100463749C/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2041493A (en) * | 1933-01-24 | 1936-05-19 | Ig Farbenindustrie Ag | Pulverulent alloy |
| GB882307A (en) * | 1958-03-07 | 1961-11-15 | Union Carbide Corp | Improvements in or relating to the production of aggregates |
| US3220875A (en) * | 1961-05-01 | 1965-11-30 | Int Nickel Co | Process and apparatus for decomposing gaseous metal compounds for the plating of particles |
| US3342587A (en) * | 1964-05-25 | 1967-09-19 | Int Nickel Co | Method for the production of metal and metal-coated powders |
| US3605685A (en) * | 1965-08-25 | 1971-09-20 | Int Nickel Co | Apparatus for fluidizing and coating a particulate material |
| US3632401A (en) * | 1968-11-08 | 1972-01-04 | Ugine Kuhlmann | Process for obtaining granular solids by the decomposition of gaseous reactants |
| US4936250A (en) * | 1988-01-18 | 1990-06-26 | Inco Limited | System for coating particles employing a pneumatic transport reactor |
| CN1214979A (en) * | 1997-10-17 | 1999-04-28 | 昭荣化学工业株式会社 | Nickel powder and preparation process thereof |
| US6048578A (en) * | 1998-11-03 | 2000-04-11 | Chemical Vapour Deposition Systems, Inc. | Closed loop carbon monoxide self-contained nickel carbonyl deposition process |
Non-Patent Citations (2)
| Title |
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| 金属基复合粉末制备技术的现状及展望. 柴立元，钟海云，张传福.粉末冶金技术，第16卷第3期. 1998 |
| 金属基复合粉末制备技术的现状及展望. 柴立元，钟海云，张传福. 粉末冶金技术，第16卷第3期. 1998 * |
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| CN1947903A (en) | 2007-04-18 |
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