CN1817521A - Production of composite copper powder with nickle coating - Google Patents
Production of composite copper powder with nickle coating Download PDFInfo
- Publication number
- CN1817521A CN1817521A CN 200610065029 CN200610065029A CN1817521A CN 1817521 A CN1817521 A CN 1817521A CN 200610065029 CN200610065029 CN 200610065029 CN 200610065029 A CN200610065029 A CN 200610065029A CN 1817521 A CN1817521 A CN 1817521A
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- CN
- China
- Prior art keywords
- nickel
- copper
- powder
- solution
- coats
- 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.)
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims description 47
- 239000002131 composite material Substances 0.000 title claims description 17
- 239000011248 coating agent Substances 0.000 title description 3
- 238000000576 coating method Methods 0.000 title description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 76
- 239000000843 powder Substances 0.000 claims abstract description 31
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 claims abstract description 17
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 238000001291 vacuum drying Methods 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 37
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 229910052802 copper Inorganic materials 0.000 claims description 21
- 239000010949 copper Substances 0.000 claims description 21
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 14
- 238000002360 preparation method Methods 0.000 claims description 12
- 238000013019 agitation Methods 0.000 claims description 9
- HIRWGWMTAVZIPF-UHFFFAOYSA-N nickel;sulfuric acid Chemical compound [Ni].OS(O)(=O)=O HIRWGWMTAVZIPF-UHFFFAOYSA-N 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 238000003756 stirring Methods 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 2
- 150000004985 diamines Chemical class 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 6
- 235000011613 Pinus brutia Nutrition 0.000 description 6
- 241000018646 Pinus brutia Species 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 238000005253 cladding Methods 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 239000006210 lotion Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000004663 powder metallurgy Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- Powder Metallurgy (AREA)
Abstract
A process for preparing the Cu-in-Ni particles by wet metallurgical method includes such steps as preparing the solution of nickel sulfate, heating, adding Cu powder while stirring, regulating pH=11.5-13.5, slowly adding diamine while stirring, reaction, filtering, washing and vacuum drying.
Description
Technical field
A kind of nickel coats the production method of the composite powder of copper, relates to a kind of metal dust that adopts Wet-process metallurgy method to prepare powder used in metallurgy, has particularly coated the preparation method of the metal composite powder of nickel on the copper powder surface.
Background technology
In the sintered metal product, the consumption of premixed powder is increasing.When parts prepare, copper powder is mixed with other metal powder when carrying out powder metallurgy, the various metal dusts of use must evenly mix, otherwise influential to the quality of parts.In powdered metal parts was made, a large amount of metal dusts of use generally, all were that several powder are used, and amount according to demand just mixes after quantitatively in advance, carries out the sintering compacting again.When batch mixing, it is inhomogeneous that local mixing always takes place inevitably, makes the quality of parts be affected.
Summary of the invention
The objective of the invention is the deficiency at above-mentioned prior art existence, providing a kind of has metal dust, the elimination powder metallurgy of nickel to prepare the evenly production method of the composite powder of batch mixing nickel coating copper of parts in the copper powder coated with uniform.
The objective of the invention is to be achieved through the following technical solutions.
A kind of nickel coats the production method of the composite powder of copper, it is characterized in that preparation process at first prepares the nickel sulfate solution of 35～45g/l, be heated to 80～90 ℃, under agitation add copper powder, regulator solution pH to 11.5～13.5, under agitation the amount by every liter of nickel sulfate solution adding 75～95ml slowly adds hydrazine, reaction is to finishing, filtration washing, 60～80 ℃ of vacuum drying obtain nickel coated copper powder.
A kind of nickel coats the production method of the composite powder of copper, it is characterized in that being with solid sulphuric acid nickel or nickel sulfate solution preparation nickel sulfate solution.
A kind of nickel coats the production method of the composite powder of copper, it is characterized in that adding the granularity of copper powder less than 0.074mm.
A kind of nickel coats the production method of the composite powder of copper, and the pH that it is characterized in that solution regulates with the NaOH solution of 2mol/l.
A kind of nickel coats the production method of the composite powder of copper, and the addition that it is characterized in that copper powder is that the theoretical amount ratio by the ambrose alloy in the coated composite powder that makes adds.
Adopting method of the present invention, is core with the electrolytic copper powder, is elemental nickel with the nickel of hydrazine reduction nickel sulfate solution, forms one deck nickel film at the copper powder surface deposition, covers the surface of copper powder particle, forms the nickel cladding powder.Preparation technology is simple, and reaction is fast, coating is complete.Can prepare nickel content and coat copper powder at the nickel of 17%-25%, the cladding powder of preparation has the characteristic that the common mechanical mixed-powder does not have, and as being easy to alloying in the powder metallurgy, segregation etc. does not take place in the use.If nickel is coated on the copper powder outside, make nickel form thin film in the copper powder outside, can thoroughly change two kinds of uneven problems of powder, simultaneously, this cladding powder can replace the copper powder of sneaking into nickel fully, and reaches better effect.Nickel coated copper powder is similar to general copper powder in the processing performance of the metallurgical parts that makes powder, and briquettability is good, and the color of sintered part is more shallow, and its hardness is higher than red copper, and approximate sintered bronze is lower than sinterred brass.It is the normal a kind of cladding powder that adopts during present metallurgical parts is made.
The specific embodiment
A kind of nickel coats the production method of the composite powder of copper, it is characterized in that preparation process is at first with the nickel sulfate solution of solid sulphuric acid nickel or nickel sulfate solution preparation 35～45g/l, be heated to 80～90 ℃, under agitation add the copper powder of granularity less than 0.074mm, regulator solution pH to 11.5～13.5, under agitation the amount by every liter of nickel sulfate solution adding 75～95ml slowly adds hydrazine, reaction is to finishing, filtration washing, 60～80 ℃ of vacuum drying obtain nickel coated copper powder.
Below in conjunction with example method of the present invention is further described.
Example 1
3 liters of the nickel sulfate solutions of solid sulphuric acid nickel preparation sulfur acid nickel 35g/l under the measurement of acidometer, are 11.5 with the NaOH regulator solution pH of 2mol/l, heated solution to 80 ℃, under agitation add the 100g washes clean-0.074mm, pine is than being 1.78g/cm
3Copper powder, slowly add the 240ml hydrazine, to drip the NaOH solution of 2mol/l in the course of reaction at any time, to keep pH value of solution constant, after reaction is finished, stop to stir, filter, be washed with distilled water to the washing lotion sulfate radical-free, put in the vacuum drying chamber that is warming up to 80 ℃ dry 2 hours into, be nickel coated copper powder, its nickel content is 17%, surplus is a copper, and pine is than being 1.81g/cm
3
Example 2
With 3 liters of the nickel sulfate solutions of nickel sulfate solution preparation sulfur acid nickel 40g/l, under the measurement of acidometer, be 12 with the NaOH regulator solution pH of 2mol/l, heated solution to 85 ℃ under agitation adds the 0.074mm of 100g washes clean, and pine is than being 1.78g/cm
3Copper powder, slowly add the 240ml hydrazine, to drip the NaOH solution of 2mol/l in the course of reaction at any time, to keep pH value of solution in stable scope, reaction stops to stir to finishing, and filters, be washed with distilled water to the washing lotion sulfate radical-free, put in the vacuum drying chamber that is warming up to 70 ℃ dry 2 hours into, be nickel coated copper powder, its nickel content is 20.5%, surplus is a copper, and pine is than being 1.80g/cm
3
Example 2
3 liters of the nickel sulfate solutions of preparation sulfur acid nickel 45g/l under the measurement of acidometer, are 13.5 with the NaOH regulator solution pH of 2mol/l, and heated solution to 90 ℃ under agitation adds the 0.074mm of 100g washes clean, and pine is than being 1.78g/cm
3Copper powder, slowly add the 240ml hydrazine, to drip the NaOH solution of 2mol/l in the course of reaction at any time, to keep pH value of solution in stable scope, reaction stops to stir to finishing, and filters, be washed with distilled water to the washing lotion sulfate radical-free, put in the vacuum drying chamber that is warming up to 80 ℃ dry 2 hours into, be nickel coated copper powder, its nickel content is 24%, surplus is a copper, and pine is than being 1.80g/cm
3
Claims (5)
1. a nickel coats the production method of the composite powder of copper, it is characterized in that preparation process at first prepares the nickel sulfate solution of 35～45g/l, be heated to 80～90 ℃, under agitation add copper powder, regulator solution pH to 11.5～13.5, under agitation the amount by every liter of nickel sulfate solution adding 75～95ml slowly adds hydrazine, reaction is to finishing, filtration washing, 60～80 ℃ of vacuum drying obtain nickel coated copper powder.
2. a kind of nickel according to claim 1 coats the production method of the composite powder of copper, it is characterized in that being with solid sulphuric acid nickel or nickel sulfate solution preparation nickel sulfate solution.
3. a kind of nickel according to claim 1 coats the production method of the composite powder of copper, it is characterized in that adding the granularity of copper powder less than 0.074mm.
4. a kind of nickel according to claim 1 coats the production method of the composite powder of copper, and the pH that it is characterized in that solution regulates with the NaOH solution of 2mol/l.
5. a kind of nickel according to claim 1 coats the production method of the composite powder of copper, and the addition that it is characterized in that copper powder is that the theoretical amount ratio by the ambrose alloy in the coated composite powder that makes adds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610065029 CN1817521A (en) | 2006-03-17 | 2006-03-17 | Production of composite copper powder with nickle coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610065029 CN1817521A (en) | 2006-03-17 | 2006-03-17 | Production of composite copper powder with nickle coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1817521A true CN1817521A (en) | 2006-08-16 |
Family
ID=36917829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610065029 Pending CN1817521A (en) | 2006-03-17 | 2006-03-17 | Production of composite copper powder with nickle coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1817521A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008675A (en) * | 2012-12-19 | 2013-04-03 | 国家钽铌特种金属材料工程技术研究中心 | Preparation method of nickel coated copper composite powder |
| CN103060780A (en) * | 2013-01-22 | 2013-04-24 | 北京工业大学 | Preparation method of nickel-coated copper powder for conductive rubber |
| CN103611931A (en) * | 2013-12-18 | 2014-03-05 | 江苏科技大学 | Method for preparing nickel-coated copper composite powder in laboratory through electroplating |
| CN103611933A (en) * | 2013-12-18 | 2014-03-05 | 江苏科技大学 | Method for efficiently preparing nickel-coating copper composite powder through ultrasonic chemistry |
| CN104143385A (en) * | 2014-07-23 | 2014-11-12 | 浙江大学 | A copper conductive paste for silicon solar cell grid and preparation method thereof |
| CN104801709A (en) * | 2015-03-20 | 2015-07-29 | 邱羽 | Nickel-coated copper clad metal powder and preparation method and application thereof |
| CN108555286A (en) * | 2018-06-13 | 2018-09-21 | 中国科学技术大学 | A kind of nickel copper-clad micron film, preparation method and its application of nucleocapsid |
| CN110039063A (en) * | 2019-05-28 | 2019-07-23 | 白银矿冶职业技术学院 | The method for preparing micron-stage sheet-like nickel coated copper powder with waste solution of copper electrolysis |
-
2006
- 2006-03-17 CN CN 200610065029 patent/CN1817521A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008675A (en) * | 2012-12-19 | 2013-04-03 | 国家钽铌特种金属材料工程技术研究中心 | Preparation method of nickel coated copper composite powder |
| CN103060780A (en) * | 2013-01-22 | 2013-04-24 | 北京工业大学 | Preparation method of nickel-coated copper powder for conductive rubber |
| CN103060780B (en) * | 2013-01-22 | 2014-10-29 | 北京工业大学 | Preparation method of nickel-coated copper powder for conductive rubber |
| CN103611931A (en) * | 2013-12-18 | 2014-03-05 | 江苏科技大学 | Method for preparing nickel-coated copper composite powder in laboratory through electroplating |
| CN103611933A (en) * | 2013-12-18 | 2014-03-05 | 江苏科技大学 | Method for efficiently preparing nickel-coating copper composite powder through ultrasonic chemistry |
| CN103611933B (en) * | 2013-12-18 | 2016-01-20 | 江苏科技大学 | A kind of sonochemistry efficiently prepares the method for nickel coated copper composite powder |
| CN104143385A (en) * | 2014-07-23 | 2014-11-12 | 浙江大学 | A copper conductive paste for silicon solar cell grid and preparation method thereof |
| CN104801709A (en) * | 2015-03-20 | 2015-07-29 | 邱羽 | Nickel-coated copper clad metal powder and preparation method and application thereof |
| CN104801709B (en) * | 2015-03-20 | 2017-05-17 | 邱羽 | Nickel-coated copper clad metal powder and preparation method and application thereof |
| CN108555286A (en) * | 2018-06-13 | 2018-09-21 | 中国科学技术大学 | A kind of nickel copper-clad micron film, preparation method and its application of nucleocapsid |
| CN110039063A (en) * | 2019-05-28 | 2019-07-23 | 白银矿冶职业技术学院 | The method for preparing micron-stage sheet-like nickel coated copper powder with waste solution of copper electrolysis |
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