CN1212211C - Manufacturing method for scale shaped metal powder - Google Patents
Manufacturing method for scale shaped metal powder Download PDFInfo
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- CN1212211C CN1212211C CNB031356338A CN03135633A CN1212211C CN 1212211 C CN1212211 C CN 1212211C CN B031356338 A CNB031356338 A CN B031356338A CN 03135633 A CN03135633 A CN 03135633A CN 1212211 C CN1212211 C CN 1212211C
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Abstract
The present invention relates to a manufacture method for scaly metal powder, which is particularly to suitable for producing environmental protection green paint: dacromet solution, zinc rich paint, and other kinds of anti-corrosive paint. The metal powder and grinding media are mixed according to proportion and added with grinding aid and surfactant to be ground in a close grinder; through regulating the water quantity of a water-cooling jacket of the grinder, the grinding temperature is controlled between 20 DEG C and 100 DEG C; inert gas is led into the grinder in order to prevent oxygen from entering atmosphere, and the oxidation of metal is avoided; the rotation speed of the grinder is regulated, and the dry ball grinding of the rotation speed of different grinders in different sections is controlled. The method can be used for producing not only scaly zinc powder and aluminium powder but also the metal powder or alloy powder of copper powder, copper zinc powder, silver powder, etc.
Description
One, technical field: hydrometallurgy manufacturing.
Two, background technology: Dacromet Technology is a kind of metal coating treatment technology that is similar to electrogalvanizing, later 1960s is by U.S. diamond Sa Muke company invention, is one of classic new and high technology of steel part corrosion resistance in the Treatment of Metal Surface in the world today.The Dacroment coating has worldwide obtained extensive use rapidly owing to have characteristics such as nuisanceless, no hydrogen embrittlement, good corrosion resistance, impregnability, hear resistance, is that alternative traditional electrical is zinc-plated, the best-of-breed technology of hot-dip galvanizing technique at present.The present invention is a kind of production Technology that is used for the scaled metal powder end, is particularly suitable for to produce Dacroment liquid, inorganic zinc-rich paint, the scaled metal powder of heavy-duty anticorrosive coating.
The manufacture method at domestic existing scaled metal powder end is by selecting materials, grinding sorting at present, filter dry, screening, redrying, operations such as packing are used ball mill with the method production of wet ball grinding, grinding step, and the sorting operation is used the scaled metal powder screening installation.Wet grinding need add grinding aid and grind media, the drying process complexity, cycle is long, efficient is low, the easy oxidation of metal powder, the residual a part of media of metal powder meeting after drying, influence the scope of application and the quality of metal powder, can only be used for the lower Dacroment liquid of class, and sheet can not be used for other purposes directly than not reaching requirement.
At application number is 901103918, name is called and discloses a kind of being used in the patent application of " manufacture method of flakey alloy powder " and print, the manufacture method of the flakey alloy powder of spraying: this technology has been got rid of wet ball grinding and annealing in process, adopt under temperature control, the control oxygen and carry out dry ball milling, under 150-250 ℃ state, feed pure oxygen with the control oxidizability, thereby improve the metallic luster and the ductility of scale alloy powder, its technical characterictic is to feed in the circulating dry ball milling system with hot-air, coats through painted processing and last film to form.At application number is 01103176X, name is called the production method that the another kind that proposes in the patent application of " process for preparing scaled metal powder " is particularly suitable for producing Dacroment flake zinc, aluminium powder, it is characterized in that: the operation of selecting materials is to choose granularity between 50 order to 150 orders, purity is raw materials for production at the metal powder more than 90%, and other processes and known, public technology at present are not without difference.
Three, summary of the invention
Main purpose of the present invention is: the grinding temperature that adopts the control metal powder, regulate the grinder rotating speed, feed inert gas and carry out dry ball milling with the method for the oxidation that prevents metal powder, thereby improve the metallic luster and the ductility at scaled metal powder end, improve the quality and the scope of application of metal powder, enlarge the purposes of zinc flake.
Further purpose of the present invention is to obtain a kind of method of producing different flake metal powders that is applicable to, aluminium powder for example, copper powder, cu-zn alloy powder, silver powder etc.This method is to grind in airtight device, prevents the oxidation of easy oxidation metal powder, has avoided entering of air.
The manufacture method at scaled metal powder provided by the present invention end, its raw material is the spherical metal powder of particle diameter 3-10 micron, abrasive media is the Ceramic Balls or the steel ball of diameter 5-15 millimeter, ball and metal charge ratio are 6: 1-15: 1, and grinding aid and the organic surface active agent of the 0.5-1.5% of adding feed metal grain weight amount, make metal powder be unlikely to cold welding, in airtight grinder, feed inert gas, keeping in the grinding machine is malleation, avoid oxygen to enter, prevent the metal powder oxidation, the grinding temperature of control metal powder carries out segmentation and grinds under 20-100 ℃ condition, first section grinding control mill speed ground 3-10 minute at 200-400 rev/min; Second section grinding control mill speed ground 5-20 minute at 700-1200 rev/min again, spherical metal powder ground be flake metal powder.
The manufacture method at scaled metal powder provided by the present invention end has compared with prior art not only replaced in the wet-milling with the method for hydro-abrasion media with long drying and ball milling, and the high energy milling of employing water-cool control, control different grinder rotating speeds, feed inert gas and avoided the airtight dry grinding of air-polluting, thereby eliminated the problem of oxidation that the scale metal contains abrasive media and metal powder, the quality and the scope of application of metal powder have been improved, obtain high-quality metal powder, this product not only can be used for Dacroment liquid, also can be used for other anticorrosive paints such as zinc-rich paint, this method not only can be used for producing zinc flake, aluminium powder, also can be used for producing copper powder, metal and alloyed powders such as copper zinc powder and silver powder.
Four, the specific embodiment:
Embodiment one: with grain through be the zirconia ball of 5～8 millimeters of 5～7 microns spherical zinc powders and diameters by zirconia ball: the proportioning of spherical zinc powder=10: 1 adds 0.6% (accounting for the percentage by weight of zinc powder amount) zinc stearate and 0.5% (accounting for the percentage of zinc powder weight) surfactant dodecyl sodium sulfate, after the batch mixes, in airtight grinder, grind, discharge by control grinder water-cooling jacket is controlled grinding temperature at 60-80 ℃, divide two sections to grind 20 minutes, feed nitrogen, keeping in the grinding machine is malleation, avoid air to enter, the control mill speed is 300 rev/mins earlier, ground 5 minutes, adjusting mill speed is 1000 rev/mins, ground again 15 minutes, obtain zinc flake, carry out classification by cyclone classified device, after be packaged into product.
Embodiment two: with particle diameter is that 6-8 millimeter stainless steel ball and particle diameter are that the copper zinc powder of 5-10 micron is 8: 1 ratio batching in ratio of grinding media to material, 0.8% odium stearate and 0.4% palm oil (surfactant) that add copper zinc powder weight grind in the sealing grinder, discharge by control grinding machine water-cooling jacket is controlled 60-80 ℃ of temperature, feed argon gas, keeping in the grinding machine is malleation; Ground 25 minutes, earlier the control mill speed is 200 rev/mins, grinds 5 minutes, and the adjustment mill speed is 800 rev/mins, grinds 20 minutes again, and the sheet of copper zinc powder that obtains is packaged into product after classified.
Embodiment three: stainless steel ball and the particle diameter that with particle diameter is the 5-10 millimeter is that the spherical aluminium powder of 8-10 micron is 6.5: 1 proportioning 0.5% the ammonium stearate that cooperates the back to add to account for spherical aluminium powder weight and 0.4% alundum (Al (surfactant) by ratio of grinding media to material, in the grinder of sealing, grind, discharge by control grinding machine water-cooling jacket is controlled 40-50 ℃ of grinding temperature, feeding contains the nitrogen of 3-5% oxygen, keeping in the grinding machine is malleation, the control mill speed is 200 rev/mins and ground 3 minutes, adjusting mill speed is 700 rev/mins, regrinding obtained flake aluminum in 17 minutes, classified back packing.
Embodiment four: be the pottery magnetic ball of 10-15 millimeter and silver powder that particle diameter is the 3-5 micron according to pottery magnetic ball and silver powder ratio with particle diameter be after 6: 1 ratio cooperates, add 0.6% glyceryl alcohol grinding aid of silver powder weight and 0.5% surfactant polyethylene, grind, discharge control temperature by control grinding machine water-cooling jacket is 60-70 ℃, 400 rev/mins of mill speeds, ground 5-10 minute, adjusting mill speed is 1200 rev/mins, and regrinding obtained flake silver powder in 5 minutes.
Claims (6)
1, the manufacture method at a kind of scaled metal powder end, comprise batching, grind, classification, packaging process, it is characterized in that: raw material is the spherical metal powder of particle diameter 3-10 micron, abrasive media is the Ceramic Balls or the steel ball of diameter 5-15 millimeter, ball and metal charge ratio are 6: 1-15: 1, and grinding aid and the organic surface active agent of the 0.5-1.5% of adding feed metal grain weight amount, make metal powder be unlikely to cold welding, in airtight grinder, feed inert gas, keeping in the grinding machine is malleation, avoid oxygen to enter, prevent the metal powder oxidation, the grinding temperature of control metal powder carries out segmentation and grinds under 20-100 ℃ condition, first section grinding control mill speed ground 3-10 minute at 200-400 rev/min; Second section grinding control mill speed ground 5-20 minute at 700-1200 rev/min again, spherical metal powder ground be flake metal powder.
2, the manufacture method of metal dust according to claim 1 is characterized in that: metal powder is a kind of in spherical zinc powder, aluminium powder, copper zinc powder, the silver powder.
3, the manufacture method of metal dust according to claim 1 is characterized in that: grinding temperature is to control by the water yield of regulating the grinding machine water-cooling jacket.
4, the manufacture method of metal dust according to claim 1 is characterized in that: the inert gas of feeding is nitrogen or argon gas.
5, the manufacture method of metal dust according to claim 4 is characterized in that: the nitrogen of feeding is the nitrogen that contains 3-5% oxygen.
6, the manufacture method of metal dust according to claim 1 is characterized in that: grinding aid is zinc stearate, odium stearate, stearmide or glyceryl alcohol, and organic surface active agent is dodecyl sodium sulfate, palm oil, alundum (Al or polyethylene glycol.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB031356338A CN1212211C (en) | 2003-08-18 | 2003-08-18 | Manufacturing method for scale shaped metal powder |
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| CNB031356338A CN1212211C (en) | 2003-08-18 | 2003-08-18 | Manufacturing method for scale shaped metal powder |
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| CN1513629A CN1513629A (en) | 2004-07-21 |
| CN1212211C true CN1212211C (en) | 2005-07-27 |
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| CNB031356338A Expired - Fee Related CN1212211C (en) | 2003-08-18 | 2003-08-18 | Manufacturing method for scale shaped metal powder |
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Families Citing this family (29)
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| CN100384573C (en) * | 2006-01-23 | 2008-04-30 | 内蒙古蒙西高新技术集团有限公司 | Method for preparing copper zinc alloy powder |
| CN100436007C (en) * | 2006-11-28 | 2008-11-26 | 中南大学 | Method for laminating round metallic aluminium in aqueous solution |
| CN102031033B (en) * | 2009-09-30 | 2012-07-04 | 研祥智能科技股份有限公司 | Method for improving Dacromet coating conductivity and metal member with high conductive Dacromet coating |
| CN101956149B (en) * | 2010-10-08 | 2012-08-29 | 昆明理工大学 | Process for preparing carbon nano-tube-enhanced aluminum-based composite material |
| CN102151835B (en) * | 2011-03-17 | 2012-12-19 | 昆明理工大学 | Method for preparing ultrafine platy copper-zinc alloy powder |
| CN102601375A (en) * | 2012-03-29 | 2012-07-25 | 浙江南欧金属粉有限公司 | Flaky metal powder production process |
| CN103100718B (en) * | 2012-12-28 | 2015-06-17 | 深圳市中金岭南科技有限公司 | Preparation method for flake zinc powder containing indium and bismuth and aluminum and calcium |
| CN103341632B (en) * | 2013-07-08 | 2015-08-12 | 昆明理工大学 | A kind of technique of dry process zinc flake |
| CN103433481B (en) * | 2013-07-31 | 2015-08-26 | 江苏麟龙新材料股份有限公司 | Scale-like multi-component zinc aluminum silicon alloy powder containing La, Ce and Pr and preparation method thereof |
| CN103406539B (en) * | 2013-07-31 | 2016-03-30 | 江苏麟龙新材料股份有限公司 | Scale-like multi-component zinc aluminum silicon alloy powder containing Ce and Pr and preparation method thereof |
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| CN103357868B (en) * | 2013-07-31 | 2016-03-02 | 江苏麟龙新材料股份有限公司 | Scale-like multi-component zinc aluminum silicon alloy powder containing La, Ce, Pr and Nd and preparation method thereof |
| CN103722175B (en) * | 2013-12-31 | 2016-02-17 | 昆明海创兴科技有限公司 | The manufacture method of superfine flaky zinc powder with high corrosion resistance |
| CN103949649B (en) * | 2014-05-13 | 2016-03-02 | 中南大学 | The method of flake copper is prepared under a kind of water-based system |
| CN104117681B (en) * | 2014-07-31 | 2016-02-10 | 宁波广博纳米新材料股份有限公司 | A kind of preparation method of ultra-fine copper sheet |
| CN104611613A (en) * | 2014-12-12 | 2015-05-13 | 北京北矿锌业有限责任公司 | Zinc nickel alloy piece pigment and production method and application thereof |
| CN105170987B (en) * | 2015-09-23 | 2018-07-24 | 深圳市中金岭南科技有限公司 | A kind of dry type ball milling prepares the method and device of flaky metal powder |
| CN106216707B (en) * | 2016-08-05 | 2018-05-25 | 佛山市顺德区天地彩粉末涂料实业有限公司 | A kind of preparation method of anticorrosive paint Scale Zinc Ultrafine Powders |
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| CN106346009A (en) * | 2016-10-11 | 2017-01-25 | 江苏华力索菲新材料有限公司 | Flaky nano metal zinc powder processing method |
| CN110003690A (en) * | 2018-05-25 | 2019-07-12 | 佛山市高明区爪和新材料科技有限公司 | A kind of preparation method of anticorrosive paint flake zinc powder |
| CN108421983A (en) * | 2018-05-29 | 2018-08-21 | 曲源 | The method for preparing the device of Metal Flake powder and preparing Metal Flake powder using the device |
| CN109763128B (en) * | 2019-03-23 | 2020-07-03 | 昆明理工大学 | Method for preparing superfine flaky copper powder by alloy corrosion method |
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| CN110508825B (en) * | 2019-09-16 | 2022-01-18 | 湖南昊宏新材料科技有限公司 | Method for preparing superfine flaky zinc-containing alloy powder by wet ball milling, product and application thereof |
| CN110722169A (en) * | 2019-11-15 | 2020-01-24 | 衡东县金源铝银粉有限公司 | Fireworks aluminum powder production process |
| CN111167569B (en) * | 2019-12-31 | 2021-08-17 | 曲靖华益兴新材料有限公司 | Method and equipment for preparing easily-dispersible aluminum powder pigment by direct ball milling |
| CN113140383B (en) * | 2021-04-23 | 2024-01-30 | 阜阳师范大学 | Preparation method of cerium-based amorphous soft magnetic alloy material |
| CN113680463B (en) * | 2021-07-02 | 2023-03-24 | 中国科学院重庆绿色智能技术研究院 | Method for improving compounding efficiency of binary optical absorbent |
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Owner name: KUMING UNIV. OF SCIENCE AND ENGINEERING; SHENZHEN Free format text: FORMER OWNER: KUMING UNIV. OF SCIENCE AND ENGINEERING Effective date: 20080125 |
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Effective date of registration: 20080125 Address after: No. 253, Xuefu Road, Kunming, Yunnan Province, China: 650031 Co-patentee after: Shenzhen Nonfemet Technology Co., Ltd. Patentee after: kunming university of science and technology Address before: No. 253, Xuefu Road, Kunming, Yunnan Province, China: 650031 Patentee before: Kunming University of Science and Technology |
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