CN1051002A - Make the method and apparatus of refining metallic powder - Google Patents
Make the method and apparatus of refining metallic powder Download PDFInfo
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- CN1051002A CN1051002A CN 90106130 CN90106130A CN1051002A CN 1051002 A CN1051002 A CN 1051002A CN 90106130 CN90106130 CN 90106130 CN 90106130 A CN90106130 A CN 90106130A CN 1051002 A CN1051002 A CN 1051002A
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- powder
- atomizing
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- metallic powder
- refining metallic
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Abstract
Make the method for refining metallic powder, it is characterized in that atomizing, condensation technologies such as gas jet atomization, the atomizing of mechanical rotary impact, cooling medium impact atomizing organically being incorporated into one by custom-designed rapid condensation device, reduce the melt volume that synchronization will solidify, increase its area of dissipation, improve the heat conduction speed of the heat eliminating medium that contacts with melt, be crushed to minimum particle size before making melt solidifying, thereby make Fine Aluminum Powder, amorphous, accurate crystalline substance and microcrystalline powder.Adopt the present invention to make its cooling velocity of refining metallic powder and reach 10
5-107K/s, the powder production amount is 1-5kg/min, the I of powder mean particle sizes reaches 10 microns.
Description
The invention belongs to the manufacturing field of metal dust, especially make refining metallic powder and amorphous. accurate crystalline substance and microcrystalline powder.
The manufacturing of relevant Fine Aluminum Powder, main by horizontal-jet control of dust method. vertically go up the spray method. following spray method. U.S.'s Alexandre Desplat of ultrasonic gas atomization method and " non-ferrous metal progress (a powder metallurgy piece of writing) " the 60th page of introduction of fascicle April the 36th in 1985. the rotating disc atomization of Whitney airline invention, all can not directly make particle mean size is 10-30 μ m powder, and these method energy consumptions are high, powder cost costliness all is difficult to be used in the industrial production at present.
Relevant amorphous. the manufacturing at accurate crystalline flour end, mainly adopt methods such as ultrasonic atomizatio method and rotating circular disk atomizing.P.49-52, the U.S. " Metal Powder Reports " Vol.41 No.1 in 1987 introduces, and the powder size that these methods are produced is big, the cost costliness.
Its auxiliary equipment complexity of above-mentioned prior art. huge, involve great expense.
The object of the present invention is to provide not only suitable carry out continuously industrial. but also both can produce refining metallic powder, also can produce amorphous. accurate crystalline flour end. the method and apparatus of crystallite metal dust; And this method energy consumption is low, process stabilizing, and powder property adapts to various requirement, and production cost is low; This device structure is simple, and is easy to operate, and condensation rate is big, and its auxiliary equipment is simple, and cost is low.
It is to have adopted the process of the multistage rapid condensation of a cover and the device of rapid condensation thereof that above-mentioned purpose of the present invention reaches.The RAPID SOLIDIFICATION TECHNIQUE key is to reduce the melt volume that synchronization will solidify, increase its area of dissipation, improve the heat conduction speed of the heat eliminating medium (heat sink) contact with melt. this method be with metal or alloy superheat after melt, adopt conventional gas jet atomization to become very little drop, when cooling medium impacts atomizing, and centrifugal through repeatedly machinery.Impact-atomizing is broken, thus the rapid condensation powdered.This method is implemented by the rapid condensation device, the feature of this device is that round roller and the disk that moves both vertically mutually is housed in cooler bin, the perhaps parallel round rollers that three contrary each other successively directions motions are housed, and the spray conduit that cooling fluid is provided, be crushed to minimum particle size before making melt solidifying, and keep the heat conduction speed of heat eliminating medium.
Do detailed description below in conjunction with accompanying drawing:
Fig. 1: " roller dish " rapid condensation device front view.
Fig. 2: " three rollers " rapid condensation device front view
Fig. 1 has described the concrete structure of " roller dish " rapid condensation device.The cooler bin 12 that is become by the metal material embedding has a discharging opening 13, and nozzle 3 has been installed on it, and its wall has been installed chilling spray pipe 8.11 and transmission channels 4; Justifying roller 9 does not draw among the rotating shaft figure by rotating shaft 6(circle roller respectively with disk 5) being connected with cooler bin motor outward moves both vertically mutually; Its linear velocity is 30-150m/s, and roller is 175-450mm with the centre distance of dish two rotating shafts; The equal diameters of roller and dish is generally 350-500mm; The thickness of roller is 120-180mm; The thickness of dish is 8-15mm.Have vent on the dish, its diameter is 10-14mm, and hole count is 10-20, apart from disc axis 80-180mm place one circle band 7 is housed, and its thickness is 5-8mm.
Fig. 2 has described the structure of " three rollers " rapid condensation device.Parallelly in the cooler bin 14 the round roller 31.26.29 of different-diameter is housed and should be the spray conduit 32.25.30 that it provides cooling medium mutually, three round rollers move against directions successively each other, and its linear velocity is 80-150m/s, and the best is 100-130m/s, and its diameter compares X
31: Y
26: Z
29Be 1: 1.2: 1.5-1: 1.5: 3, its diameter was 300-500mm, and its length is 120-180mm.
Fig. 1. the described round roller of Fig. 2. disk is all made with copper material, can also make with other heat conductivility good metal materials such as Ag.Ni and stainless steels.
Fig. 1 and Fig. 2 have also described the state of arts of rapid condensation device manufacturing attritive powder. as shown in Figure 1, the melt that fills in the crucible 2 by induction coil 1 winding, under the gas pressure effect of tracheae 10,3 be atomized into the liquid pearl by leting slip a remark, be crashed to pieces above being ejected into the round metal roller 6 that rotates at a high speed. discrete, impact rapid condensation on the disk 7 of adjusting rotation immediately again, and be thrown out of.This process is disperseed melt with the cooling medium of conduit 8.11 sprays all the time.Smash molten drop. take away heat. cooling circle roller and disk.Transmission channels 4 matches the guiding drop at the circle roller with circle band 7. smashes in the zone that disk limits. and cooled powder is wandered in the collection container from discharging opening 13 with cooling fluid.
Other parameter of this rapid condensation milling method is:
Orifice gas expulsion pressure: 0.6-1.5MPa
Nozzle from the copper roll spacing from 20-100mm
Metal liquid fluidization tower diameter: 2.5-4mm
First order cooling water (shower 8) pressure is: 0.03-1.0MPa
Second level cooling water (shower 11) pressure is: 0.1-2.0MPa
Its cooling velocity of device of the present invention reaches 10
5-10
7K/s, the powder production amount is that the I of the particle mean size of 1-5Kg/min. powder reaches 10 μ m. and has been applied to the continuity industrial production, has produced tens kinds of amorphous. accurate crystalline substance and microcrystalline powder.
Embodiment:
1. the solid rocket propellant manufacturing of Fine Aluminum Powder
Gas atomization pressure 0.8MPa, circle roller, disk diameter are 450mm, linear velocity 100m/s, metal bath flow 1Kg/min. cooling fluid is a water, and the hydraulic pressure first order is 0.05MPa, and the second level is 0.2MPa, and the powder mean particle sizes that makes is 10 μ m.
2. the manufacturing of fine copper powder
Gas atomization pressure is 0.8-1.6MPa, the circle roller. disk diameter is 450mm, and linear velocity is 100m/s, and the metal bath flow is 4Kg/min, and cooling medium is H
2O, making the copper powder particle mean size is 10-12 μ m.
3. the manufacturing of amorphous Al-Ni-Y alloy powder
Gas atomization pressure 0.8MPa, circle roller, disk diameter are 450mm, and linear velocity is that 100m/s. metal bath flow is 3Kg/min., and cooling fluid is H
2O, the hydraulic pressure first order is 0.1MPa, and the second level is 0.2MPa, and cooling velocity reaches 10
7K/s, the Al-Ni-Y amorphous powder particle mean size that makes is 14-18 μ m.
4.Al-Si microcrystalline powder manufacturing
Gas atomization pressure 0.8-1.2MPa, the circle roller, disk diameter is 450mm, and linear velocity is 100m/s, and metal bath flow 2Kg/min. cooling fluid is H
2O, the hydraulic pressure first order is 0.1MPa, and the second level is 0.2MPa, and cooling velocity is 10
6K/s makes the Al-Si powder, primary silicon＜1 μ m, and particle mean size is 8-10 μ m.
5.Al-Mn the manufacturing at accurate crystalline flour end
Gas atomization pressure 1.2MPa, circle roller, disk diameter are 450mm, and linear velocity is 100m/s, and the metal bath flow is 2Kg/min., and cooling fluid is a liquid nitrogen, makes the accurate crystalline flour of Al-Mn alloy end, particle mean size is 15-18 μ m.
Claims (4)
1, a kind of method of making refining metallic powder is characterized in that by custom-designed rapid condensation device, and with the gas jet atomization, cooling medium impacts atomizing.Condensation technologies such as machinery rotary impact atomizing organically are incorporated into one, control suitable pressure, linear velocity, and technological parameters such as metal bath flow are made refining metallic powder with the metal bath rapid condensation, amorphous, accurate crystalline substance and microcrystalline powder.
2, method according to claim 1 is characterized in that linear velocity is 30-150m/s.
3, make the device of refining metallic powder, it has a cooler bin (12; 34), nozzle (3 is housed on this case; 23), cooling medium shower (8,11; 25,30,32), transmission channels (4; 24,27) it is characterized in that the orthogonal round roller installed in the cooler bin and disk or parallel installation three the round rollers (31,26,29) of contrary each other direction motion successively.
4,, it is characterized in that the diameter ratio of described three rollers is 1: 1.2: 2 to 1: 1.5: 3. according to the described device of claim 2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90106130 CN1019362B (en) | 1990-12-05 | 1990-12-05 | Method and device of making refining metallic powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90106130 CN1019362B (en) | 1990-12-05 | 1990-12-05 | Method and device of making refining metallic powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1051002A true CN1051002A (en) | 1991-05-01 |
| CN1019362B CN1019362B (en) | 1992-12-09 |
Family
ID=4879832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90106130 Expired CN1019362B (en) | 1990-12-05 | 1990-12-05 | Method and device of making refining metallic powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1019362B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997009144A1 (en) * | 1995-09-07 | 1997-03-13 | Shanghai Shen-Jian Metallurgical & Machinery-Electrical Technology Engineering Corp. | A method and an equipment for producing rapid condensation hydrogen storage alloy powder |
| CN1059369C (en) * | 1995-09-07 | 2000-12-13 | 上海申建冶金机电技术工程公司 | Method for preparing quickly solidifing hydrogen-stored alloy powder material |
| CN100409980C (en) * | 2006-09-01 | 2008-08-13 | 鞍钢实业微细铝粉有限公司 | Production technology of two-nozzle atomization aluminium powder |
| CN100425377C (en) * | 2002-09-10 | 2008-10-15 | 昭荣化学工业株式会社 | Method for mfg. metal powder |
| US7449044B2 (en) | 2002-09-30 | 2008-11-11 | Toho Titanium Co., Ltd. | Method and apparatus for producing metal powder |
| CN103042222A (en) * | 2013-01-29 | 2013-04-17 | 武汉科技大学 | Device for preparing fine crystal powder based on electrostatic spraying, and using method thereof |
| CN103056374A (en) * | 2011-10-22 | 2013-04-24 | 湖南省冶金材料研究所 | Method for preparing prealloy powder for low-oxygen-content micro-diamond product and using ultrahigh-pressure water atomization |
| CN105668619A (en) * | 2016-01-27 | 2016-06-15 | 柳州豪祥特科技有限公司 | Method for preparing anhydrous stannic chloride |
| CN112170857A (en) * | 2020-09-30 | 2021-01-05 | 宁波中科毕普拉斯新材料科技有限公司 | Preparation method of fine alloy powder |
-
1990
- 1990-12-05 CN CN 90106130 patent/CN1019362B/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997009144A1 (en) * | 1995-09-07 | 1997-03-13 | Shanghai Shen-Jian Metallurgical & Machinery-Electrical Technology Engineering Corp. | A method and an equipment for producing rapid condensation hydrogen storage alloy powder |
| CN1059369C (en) * | 1995-09-07 | 2000-12-13 | 上海申建冶金机电技术工程公司 | Method for preparing quickly solidifing hydrogen-stored alloy powder material |
| CN100425377C (en) * | 2002-09-10 | 2008-10-15 | 昭荣化学工业株式会社 | Method for mfg. metal powder |
| US7449044B2 (en) | 2002-09-30 | 2008-11-11 | Toho Titanium Co., Ltd. | Method and apparatus for producing metal powder |
| CN100409980C (en) * | 2006-09-01 | 2008-08-13 | 鞍钢实业微细铝粉有限公司 | Production technology of two-nozzle atomization aluminium powder |
| CN103056374A (en) * | 2011-10-22 | 2013-04-24 | 湖南省冶金材料研究所 | Method for preparing prealloy powder for low-oxygen-content micro-diamond product and using ultrahigh-pressure water atomization |
| CN103042222A (en) * | 2013-01-29 | 2013-04-17 | 武汉科技大学 | Device for preparing fine crystal powder based on electrostatic spraying, and using method thereof |
| CN103042222B (en) * | 2013-01-29 | 2014-12-03 | 武汉科技大学 | Device for preparing fine crystal powder based on electrostatic spraying, and using method thereof |
| CN105668619A (en) * | 2016-01-27 | 2016-06-15 | 柳州豪祥特科技有限公司 | Method for preparing anhydrous stannic chloride |
| CN112170857A (en) * | 2020-09-30 | 2021-01-05 | 宁波中科毕普拉斯新材料科技有限公司 | Preparation method of fine alloy powder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1019362B (en) | 1992-12-09 |
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