CN103469005A - Method for preparing copper-tin-nickel alloy powder by water atomization - Google Patents
Method for preparing copper-tin-nickel alloy powder by water atomization Download PDFInfo
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- CN103469005A CN103469005A CN2013103971169A CN201310397116A CN103469005A CN 103469005 A CN103469005 A CN 103469005A CN 2013103971169 A CN2013103971169 A CN 2013103971169A CN 201310397116 A CN201310397116 A CN 201310397116A CN 103469005 A CN103469005 A CN 103469005A
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- 239000000843 powder Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 27
- 229910000990 Ni alloy Inorganic materials 0.000 title claims abstract description 19
- VRUVRQYVUDCDMT-UHFFFAOYSA-N [Sn].[Ni].[Cu] Chemical compound [Sn].[Ni].[Cu] VRUVRQYVUDCDMT-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000009692 water atomization Methods 0.000 title claims abstract description 10
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 29
- 239000000956 alloy Substances 0.000 claims abstract description 29
- 239000010949 copper Substances 0.000 claims abstract description 21
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000000889 atomisation Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 13
- 229910052718 tin Inorganic materials 0.000 claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 12
- 239000011259 mixed solution Substances 0.000 claims abstract description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000003723 Smelting Methods 0.000 claims abstract description 5
- 238000007670 refining Methods 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 abstract description 5
- 238000005245 sintering Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000002411 adverse Effects 0.000 abstract description 4
- 239000000243 solution Substances 0.000 abstract 5
- 230000003116 impacting effect Effects 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 229910001229 Pot metal Inorganic materials 0.000 description 7
- 238000005452 bending Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- WIKSRXFQIZQFEH-UHFFFAOYSA-N [Cu].[Pb] Chemical compound [Cu].[Pb] WIKSRXFQIZQFEH-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- CLDVQCMGOSGNIW-UHFFFAOYSA-N nickel tin Chemical compound [Ni].[Sn] CLDVQCMGOSGNIW-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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Abstract
The embodiment of the invention discloses a method for preparing copper-tin-nickel alloy powder by water atomization. The method comprises the following steps: 1, adding 84-86 percent of copper by weight, 5-7 percent of tin by weight and 8-10 percent of nickel by weight into a smelting furnace, and smelting at normal pressure and a temperature of 1,200-1,300 DEG C to form an alloy solution; 2, performing chemical refining deoxidation and slagging-off operation on the alloy solution; 3, measuring and controlling components of the alloy solution; 4, pouring the alloy solution into a stopper ladle, and enabling the alloy solution to flow into an atomization barrel through holes of the stopper ladle, impacting and crushing the alloy mixed solution by high-pressure water generated by a high-pressure water pump, and crushing the alloy mixed solution by the high-pressure water sprayed from a nozzle to form fine spherical powder, wherein the angle of the nozzle is between 16 and 22 degrees; 5, dehydrating; and 6, screening powder. The method is used for improving the influence of a lead-containing metal material on the environment in a sintering process, so that the adverse affect of lead-containing waste products on the environment can be avoided.
Description
Technical field
The invention belongs to the powdered alloy preparing technical field, relate to especially a kind of method of preparing copper-tin-nickel alloy powder by water atomization.
Background technology
CuSn6Ni9 is a kind of bimetallic type materials such as copper-lead (Sn10-Pb10, Sn6-Pb6-Zn3) that replace, be mainly used in the aspects such as component of machine, oil bearing and structural parts, its meaning is to improve the impact on environment in sintering process of leaded metallic substance, avoids leaded waste products to environment.
Summary of the invention
For addressing the above problem, the object of the present invention is to provide a kind of method of preparing copper-tin-nickel alloy powder by water atomization, mainly with electrolysis copper coin, nickel ingot, tin slab etc., according to certain ratio, be mixed into raw material, substituted the lead-containing alloy powder, improve the impact on environment in sintering process of leaded metallic substance, avoid leaded waste products to cause adverse consequences to environment.
For achieving the above object, technical scheme of the present invention is:
A kind of method of preparing copper-tin-nickel alloy powder by water atomization comprises the following steps:
The copper Cu that the 1st step is 84～86% by weight percent, 5～7% tin Sn and 8～10% nickel, add smelting furnace, at normal pressure, the temperature of 1200 ℃ to 1300 ℃, carry out melting, form aluminium alloy, Cu wherein, the total impurities content in Sn and Ni is below 0.5%;
The 2nd step, alloy liquid carries out the chemical refining deoxidation and the operation of rake slag is processed;
The 3rd step, alloy liquid carries out composition observing and controlling, and the weight percent of controlling Cu is 84～86%, the weight percent of Sn is 5～7%, the weight percent of Ni is 8～10%, and the impurity that unavoidably maybe can't reject≤0.3%, then add the standing insulation of insulating covering agent between 1220～1260 ℃;
The 4th step, pour aluminium alloy into bottom pour ladle, bottom pour ladle leaks footpath between 2.0-3.5mm, flow into the atomization bucket by the bottom pour ladle hole, implement high pressure water alloy mixed solution that high-pressure hydraulic pump produces hits broken, by the alloy mixed solution through by nozzle, high pressure water out smashes the tiny spherical powder of formation, nozzle angle is between the 16-22 degree, in atomization process, in the middle of constantly keeping, bottom pour ladle copper liquid height, not higher than 15cm, maintains certain water level in the bucket of atomization simultaneously;
The 5th step, carry out drying treatment by the powdered alloy after dehydration by drying machine, specifically powdered alloy in drying machine do not stopped to stir, and whipping process rises to 220 ℃ by dryer temperature from 60 ℃;
The 6th step, the sieve powder prepares-325～+ 350 purpose copper tin-nickel alloy powder.
Preferably, described nozzle is the plate hole nozzle, and the nozzle hole count is 16-20, and injection diameter is 2.0～3.5mm, and atomization hydraulic pressure is 4.0～5.0Mp, and water temperature is 40-50 ℃.
Be inferior ball dress or elliposoidal by the resulting copper tin-nickel alloy powder of above method, powder shape, size are more approximate.Copper tin-nickel alloy powder loose density 5.0-5.3g/cm 3, mobility≤20s/50g, the bending strength performance is suitable with the pot metal powder, and wear resistance, stretchiness and erosion resistance all are better than the pot metal powder.This copper tin-nickel alloy powder can fine replacement pot metal powder, especially improves the impact on environment in sintering process of leaded metallic substance, avoids leaded waste products to cause adverse consequences to environment.
The accompanying drawing explanation
The flow chart of steps of the method for the preparing copper-tin-nickel alloy powder by water atomization that Fig. 1 is the embodiment of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
On the contrary, the present invention contain any by claim definition on marrow of the present invention and scope, make substitute, modification, equivalent method and scheme.Further, in order to make the public, the present invention is had a better understanding, in hereinafter details of the present invention being described, detailed some specific detail sections of having described.Do not have for a person skilled in the art the description of these detail sections can understand the present invention fully yet.
Referring to Fig. 1, be depicted as the method steps schema of a kind of preparing copper-tin-nickel alloy powder by water atomization of the embodiment of the present invention, it comprises the following steps:
S101, melting: the copper Cu that is 84～86% by weight percent, 5～7% tin Sn and 8～10% nickel, add smelting furnace, at normal pressure, the temperature of 1200 ℃ to 1300 ℃, carry out melting, form aluminium alloy, Cu wherein, the total impurities content in Sn and Ni is below 0.5%;
In a concrete application example, be mixed into raw material with electrolysis copper coin, tin slab, nickel ingot etc. according to the ratio of 85: 6: 9 and add melting in mid-frequency melting furnace, specifically every stove is 200 kilograms, copper 170Kg tin 12Kg nickel 18Kg.
S102, alloy liquid carries out the chemical refining deoxidation and the operation of rake slag is processed;
S103, alloy liquid carries out composition observing and controlling, and the weight percent of controlling Cu is 84～86%, the weight percent of Sn is 5～7%, the weight percent of Ni is 8～10%, and the impurity that unavoidably maybe can't reject≤0.3%, then add the standing insulation of insulating covering agent between 1220～1260 ℃;
S104, atomization: pour aluminium alloy into bottom pour ladle, bottom pour ladle leaks footpath between 2.0-3.5mm, flow into the atomization bucket by the bottom pour ladle hole, the high pressure water alloy mixed solution of implementing the high-pressure hydraulic pump generation hits broken, the high pressure water that the alloy mixed solution is passed through by nozzle out smashes the tiny spherical powder of formation, nozzle angle is between the 16-22 degree, in atomization process, in the middle of constantly keeping, bottom pour ladle copper liquid height is not higher than 15cm, maintain certain water level in the bucket of atomization simultaneously, the elevation of water surface that maintains atomization bucket inside is constant, be conducive under powder particle fall behind cooling formation ball-type rapidly, this measure be for reduce the different elevation of water surface of contact be in the powder dropping process the tactile water time in contact atomization copper identical, prevent the change of powder surface shape.
In concrete application example, can select nozzle is the plate hole nozzle, and the nozzle hole count is 16-20, and injection diameter is 2.0～3.5mm, and atomization hydraulic pressure is 4.0～5.0Mp, and the atomization water temperature is at 40-50 ℃.By adopting above plate hole nozzle and atomization hydraulic pressure, can be so that resulting alloy powder be inferior ball dress or elliposoidal, powder shape, size are more approximate.
S105, carry out drying treatment by the powdered alloy after dehydration by drying machine, specifically powdered alloy in drying machine do not stopped to stir, and whipping process rises to 220 ℃ by dryer temperature from 60 ℃.Drying temperature is too low, not exclusively dry, excess Temperature, and powder can lump, and slowly stirs and heats up, and makes powder more easily dry, has saved time of drying, improves the quality of alloy powder.
S106, the sieve powder prepares-325～+ 350 purpose copper tin-nickel alloy powder.
The Performance Ratio that following table shows the copper tin-nickel alloy powder that is prepared from by the embodiment of the present invention and pot metal powder is:
The copper tin-nickel alloy powder loose density 5.0-5.3g/cm prepared by aforesaid method
3, mobility≤20s/50g, the bending strength performance is suitable with the pot metal powder, and wear resistance, stretchiness and erosion resistance all are better than the pot metal powder.Therefore, this copper tin-nickel alloy powder can fine replacement pot metal powder, especially improves the impact on environment in sintering process of leaded metallic substance, avoids leaded waste products to cause adverse consequences to environment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. the method for a preparing copper-tin-nickel alloy powder by water atomization, is characterized in that, comprises the following steps:
The copper Cu that the 1st step is 84～86% by weight percent, 5～7% tin Sn and 8～10% nickel, add smelting furnace, at normal pressure, the temperature of 1200 ℃ to 1300 ℃, carry out melting, form aluminium alloy, Cu wherein, the total impurities content in Sn and Ni is below 0.5%;
The 2nd step, alloy liquid carries out the chemical refining deoxidation and the operation of rake slag is processed;
The 3rd step, alloy liquid carries out composition observing and controlling, and the weight percent of controlling Cu is 84～86%, the weight percent of Sn is 5～7%, the weight percent of Ni is 8～10%, and the impurity that unavoidably maybe can't reject≤0.3%, then add the standing insulation of insulating covering agent between 1220～1260 ℃;
The 4th step, pour aluminium alloy into bottom pour ladle, bottom pour ladle leaks footpath between 2.0-3.5mm, flow into the atomization bucket by the bottom pour ladle hole, implement high pressure water alloy mixed solution that high-pressure hydraulic pump produces hits broken, by the alloy mixed solution through by nozzle, high pressure water out smashes the tiny spherical powder of formation, nozzle angle is between the 16-22 degree, in atomization process, in the middle of constantly keeping, bottom pour ladle copper liquid height, not higher than 15cm, maintains certain water level in the bucket of atomization simultaneously;
The 5th step, carry out drying treatment by the powdered alloy after dehydration by drying machine, specifically powdered alloy in drying machine do not stopped to stir, and whipping process rises to 220 ℃ by dryer temperature from 60 ℃;
The 6th step, the sieve powder prepares-325～+ 350 purpose copper tin-nickel alloy powder.
2. the method for preparing copper-tin-nickel alloy powder by water atomization according to claim 1, is characterized in that, described nozzle is the plate hole nozzle, and the nozzle hole count is 16-20, and injection diameter is 2.0～3.5mm, and atomization hydraulic pressure is 4.0～5.0Mp, and water temperature is 40-50 ℃.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943749A (en) * | 2017-12-20 | 2019-06-28 | 东莞市精研粉体科技有限公司 | A kind of copper alloy spherical powder material applied to ornaments 3D printing head mould |
| CN113579237A (en) * | 2021-07-15 | 2021-11-02 | 江苏萌达新材料科技有限公司 | Preparation method for reducing apparent density of copper-tin alloy powder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102586646A (en) * | 2012-02-28 | 2012-07-18 | 浙江吉利来新材料有限公司 | Copper alloy powder for lead-free bimetallic lubricating materials and preparation method thereof |
| CN103042220A (en) * | 2012-12-14 | 2013-04-17 | 浦江汇凯粉体科技有限公司 | Method for preparing aluminum bronze powder by water atomization |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102586646A (en) * | 2012-02-28 | 2012-07-18 | 浙江吉利来新材料有限公司 | Copper alloy powder for lead-free bimetallic lubricating materials and preparation method thereof |
| CN103042220A (en) * | 2012-12-14 | 2013-04-17 | 浦江汇凯粉体科技有限公司 | Method for preparing aluminum bronze powder by water atomization |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943749A (en) * | 2017-12-20 | 2019-06-28 | 东莞市精研粉体科技有限公司 | A kind of copper alloy spherical powder material applied to ornaments 3D printing head mould |
| CN113579237A (en) * | 2021-07-15 | 2021-11-02 | 江苏萌达新材料科技有限公司 | Preparation method for reducing apparent density of copper-tin alloy powder |
| CN113579237B (en) * | 2021-07-15 | 2023-08-18 | 江苏萌达新材料科技有限公司 | Preparation method for reducing apparent density of copper-tin alloy powder |
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Effective date of registration: 20160525 Address after: Zhongxing Road, Pujiang County, Zhejiang Province Huang Zhai Zhen 322204 Jinhua Zhongshan City Industrial Zone No. 11 Applicant after: ZHEJIANG XUDE NEW MATERIALS CO.,LTD. Address before: Zhongxing Road, Pujiang County, Zhejiang Province Huang Zhai Zhen 322204 Jinhua Zhongshan City Industrial Zone No. 1 Applicant before: PUJIANG HUIKAI POWDER TECHNOLOGY Co.,Ltd. |
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Denomination of invention: A method for preparing copper tin nickel alloy powder by water atomization Effective date of registration: 20231121 Granted publication date: 20160622 Pledgee: Zhejiang Pujiang Rural Commercial Bank Co.,Ltd. Pledgor: ZHEJIANG XUDE NEW MATERIALS CO.,LTD. Registration number: Y2023980066577 |