CN1095488C - Wet process for preparing aluminium powder pigment - Google Patents
Wet process for preparing aluminium powder pigment Download PDFInfo
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- CN1095488C CN1095488C CN00129352A CN00129352A CN1095488C CN 1095488 C CN1095488 C CN 1095488C CN 00129352 A CN00129352 A CN 00129352A CN 00129352 A CN00129352 A CN 00129352A CN 1095488 C CN1095488 C CN 1095488C
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- aluminium powder
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Abstract
The present invention relates to an aluminum power pigment, particularly to a wet-method production technology for the aluminum power pigment. Raw materials of aluminum power, solvents, auxiliary agents and steel balls are proportionally put into a ball mill, and filter cakes are obtained by separating solids and liquid after grinding; the filter cakes, the solvents, the auxiliary agents and metal column-shaped media are put into a grinding machine for low-speed grinding under the condition of oxidizing atmosphere, and aluminum sheets are obtained by the grinding and then are kneaded into finished products. In the technological process, stage treatment is carried out for the aluminum power (sheets) by adopting a grading device, and rough materials and fine materials are generated in the grading device and are also sent into a next process or graded by the grading device again according to requirements for products. The aluminum power pigment has the advantages of narrow distribution of grain sizes, strong covering power, high whiteness value, high brightness value, etc.
Description
Technical field
The present invention relates to aluminium powder pigment, is a kind of wet process technique of aluminium powder pigment.
Background technology
At present, wet process for preparing aluminium powder pigment well known in the art normally: the aluminium powder raw material is dropped into ball mill grinding, sieve then, again screen underflow is carried out solid, liquid and separate, make product after mediating.Adopt the deficiency of this method to be: the aluminum powder particle size wider distribution; That owe on the aluminium flake surface is smooth, the regular shape degree is relatively poor; Opacifying power is lower; Brightness value and whiteness value are all lower, and its decorative effect is poor.This area is in order to improve technical feature such as aluminium powder pigment narrow particle size distribution in recent years, the aluminium powder raw material carried out selected, makes the size-grade distribution that drops into the aluminium powder raw material before the wet process technique reach narrow technical feature, but, this method makes complex manufacturing, and production cost improves.
Summary of the invention
The objective of the invention is, a kind of aluminium powder pigment warm therapy production technique is provided, make aluminium powder pigment have narrow particle size distribution, opacifying power, whiteness value and brightness value advantages of higher, and further improve performances such as aluminium flake surface finish and regular shape degree.
The present invention to achieve the above object of the invention, the technical scheme that provides is, with aluminium powder raw material, solvent, auxiliary agent and steel ball, drop into ball mill in proportion, after grinding under the weak oxide atmospheric condition, carry out solid-liquid separation, make filter cake, filter cake, solvent, auxiliary agent and metal cylindricality medium are dropped into shredder, under the weak oxide atmospheric condition, carry out low speed and grind, obtain the aluminium powder raw material or product is made in the aluminium flake solid-liquid separation after the processing of aluminium powder raw material, kneading through grinding.In above-mentioned technological process, adopt sorting equipment, carry out stage treatment with the aluminium powder raw material or with the aluminium flake after the processing of aluminium powder raw material,, coarse fodder, fines are then sent into next procedure or adopted sorting equipment to carry out stage treatment once more according to the demand of product by producing coarse fodder and fines in the sorting equipment.
The present invention is for reaching goal of the invention, and the main solution of employing is that in wet process technique, the employing sorting equipment carries out stage treatment with the aluminium powder raw material or with the aluminium flake after the processing of aluminium powder raw material.Because in existing production, adopt vibratory screening apparatus to carry out big small particle size differentiation with the aluminium powder raw material or with the aluminium flake after the processing of aluminium powder raw material, in practice, the effect of this screening, can't reach the purpose that the particle diameter of aluminium powder or aluminium flake is accurately distinguished, and then influence quality product, make the size-grade distribution of aluminium powder pigment wide, opacifying power is low, whiteness value and brightness value are low etc., cause home products and external product quality gap big, force a large amount of import external products of user's high price.The present invention draws through a large amount of tests, make in the production process of aluminium powder pigment in wet method,, place any procedure sorting equipment, carry out stage treatment to the aluminium powder raw material or with the aluminium flake after the processing of aluminium powder raw material, all will the technical feature of product be increased.For example, sorting equipment can be placed after the grinding second time of this technology, technology then of the present invention is: with the aluminium powder raw material, solvent, auxiliary agent and steel ball, drop into ball mill in proportion under the weak oxide atmospheric condition, carry out solid-liquid separation after the grinding, obtain filter cake, with filter cake, solvent, auxiliary agent and metal cylindricality medium drop into shredder, under the weak oxide atmospheric condition, carry out low speed and grind, after grinding, obtain aluminium flake, adopt sorting equipment to carry out stage treatment, by producing coarse fodder in the sorting equipment, fines according to the needs of product, carries out mediating after the solid-liquid separation to coarse fodder and fines and makes product.After sorting equipment being placed grinding for the first time, technology then of the present invention is: with aluminium powder raw material, solvent, auxiliary agent and steel ball, drop into ball mill in proportion, material after the grinding, adopt sorting equipment to carry out stage treatment, by producing coarse fodder, fines in the sorting equipment, needs according to product, coarse fodder, fines are carried out solid-liquid separation, obtain filter cake, again filter cake, solvent, auxiliary agent and metal cylindricality medium are dropped into shredder, under the weak oxide atmospheric condition, carry out low speed and grind, after grinding, obtain aluminium flake, after solid-liquid separation, mediate and make product.Before sorting equipment being placed grinding for the first time, production technique then of the present invention then is: with concentration is that the aluminium powder raw material of 1-20% places sorting equipment, by producing coarse fodder in the sorting equipment, fines, according to product demand with coarse fodder, fines is as the aluminium powder raw material, again with the aluminium powder raw material, solvent, auxiliary agent and steel ball, drop into ball mill in proportion, carry out solid-liquid separation after the grinding, obtain filter cake, with filter cake, solvent, auxiliary agent and metal cylindricality medium drop into shredder, under the weak oxide atmospheric condition, carry out low speed and grind, the aluminium flake that obtains after grinding is mediated after solid-liquid separation and is made product.Sorting equipment of the present invention, be to separate with the mutual relationship between the centrifugal force according to the aluminium powder raw material or with the size and the weight of the aluminium flake after the processing of aluminium powder raw material, its working process is, squeeze in the sorting equipment with pump with the aluminium powder raw material or with the aluminium flake after the processing of aluminium powder raw material, utilize the different positions of particle in sorting equipment of different sizes and quality, respectively will be thick, atomized aluminium raw material or the aluminium flake after the processing of aluminium powder raw material separated.The present invention can or carry out multiple fractionation with the aluminium flake after the processing of aluminium powder raw material and handle according to the needs of product the aluminium powder raw material, and the classification number of times is many more, the aluminium powder raw material that obtains or the aluminium flake size-grade distribution after the processing of aluminium powder raw material is relatively then narrow more.Sorting equipment of the present invention can adopt separator, and the present invention is in order further to improve the quality of products, and is described with filter cake solvent, auxiliary agent and metal cylindricality medium input shredder, under weak oxide institute atmosphere condition, carry out the operation that low speed grinds, can repeat, repeat at most 8 times.Described employing sorting equipment carries out in the operation of stage treatment with the aluminium powder raw material or with the aluminium flake after the processing of aluminium powder raw material, and the aluminium flake concentration that drops in the sorting equipment is 1-20%, and temperature is 10-80 ℃.In the technology process of lapping of the present invention, adopt two kinds of different media, the medium that grinds is a steel ball for the first time, and the medium in grinding for the second time adopts the metal cylindricality.The grinding of two kinds of different medias of process using of the present invention can comprehensively improve the product performance of aluminium powder pigment.Technology of the present invention is in grinding the first time of adopting the steel ball medium, and the proportional range of steel ball and aluminium powder raw material is 10-100: 1, and solvent and aluminium powder material rate are 1-5: 1, promoter addition is the 1.2-15% of aluminium powder.Technology of the present invention is in the grinding of adopting metal cylindricality medium, and the proportional range of used metal cylindricality medium, solvent, auxiliary agent and aluminium powder raw material grinds identical with the first time.Solvent described in the technology of the present invention, auxiliary agent and operation, processing condition and the equipment used of detailed description are not known technology.
The present invention has adopted sorting equipment to carry out stage treatment to the aluminium powder raw material or with the aluminium flake after the processing of aluminium powder raw material because in production technique, thereby makes the aluminium powder raw material or with the size distribution narrow of the aluminium flake after the processing of aluminium powder raw material, D
10With D
90, width can reach 25-41.5um.Production technique of the present invention has the advantage of aluminium powder pigment narrow particle size distribution, simultaneously, opacifying power can improve about 60% with kind product roughly the same than existing, and brightness value and whiteness value be than all can improving 2-3 with kind product roughly the same, and aluminium flake surfacing, regular shape degree are better.The present invention also has the low advantage of production cost.The product that adopts technology of the present invention to make is compared with external like product, and under the identical situation of product performance, production cost reduces significantly.
The above-mentioned technology according to the present invention, it is as follows to describe embodiment:
1, gets 30 kilograms of aluminium powder raw materials, 1200 kilograms of grinding medium steel balls, 66 kilograms of 200# industrial napthas, 1.5 kilograms of butyl stearates, drop in the ball mill, make it keep weak oxide atmosphere, rotating speed with 40r/m ground 240 minutes, with the discharging of 120 kg 200# industrial naptha, should expect to adopt filter press, and remove most of solvent and make its solid-liquid separation, obtain filter cake.With this filter cake, solvent, auxiliary agent and metal cylindricality medium in above-mentioned component and ratio, drop in the shredder, under the weak oxide atmospheric condition, ground 70 minutes with the rotating speed of 13r/m, with the discharging of 120 kg 200# industrial naptha, obtain aluminium flake, according to product requirement or in order further to improve the quality of products, aluminium flake can be repeated to grind, at this moment, need aluminium flake is carried out solid-liquid separation, that is: adopt filter press to remove most of solvent and obtain filter cake and again filter cake is ground.If when not needing to repeat to grind, can adopt to be pumped into and carry out stage treatment in the separator directly with the aluminium flake that obtains after grinding, obtain coarse fodder, fines, temperature is 30 ℃ in the separator, aluminium flake concentration is 3%, at last coarse fodder, fines is made product after mediating.
2, get 30 kilograms of aluminium powder raw materials, 1200 kilograms of grinding medium steel balls, 66 kilograms of 200# industrial napthas, 1.5 kilograms of butyl stearates, drop in the ball mill, make it keep weak oxide atmosphere, rotating speed with 40r/m ground 80 minutes, with the discharging of 120 kg 200# industrial naptha, this material inserted carry out classification in the separator, obtain coarse fodder, fines, according to product requirement to coarse fodder, fines carries out solid-liquid separation, obtain filter cake, with this filter cake, solvent, auxiliary agent and metal cylindricality medium drop in the shredder, under the weak oxide atmospheric condition in above-mentioned component and ratio, rotating speed with 13r/m ground 70 minutes, with the discharging of 120 kg gasoline, obtain aluminium flake, solid-liquid separation is after product is made in kneading.
3, get the aluminium powder raw material and add solvent, make its concentration reach 15%, drop in the separator and carry out stage treatment, obtain coarse fodder, fines, again according to product requirement, with coarse fodder or fines as 30 kilograms of aluminium powder raw materials, 1200 kilograms of grinding medium steel balls, 66 kilograms of 200# industrial napthas, 1.5 kilograms of butyl stearates, drop in the ball mill, make it keep weak oxide atmosphere, rotating speed with 40r/m ground 40 minutes, with the discharging of 120 kg 200# solution gasoline, this material was adopted filter press, remove most of solvent and make its solid-liquid separation, obtain filter cake.With this filter cake, solvent, auxiliary agent according to the above ratio with metal cylindricality medium, drop in the shredder, under the weak oxide atmospheric condition, ground 70 minutes with the rotating speed of 13r/m, with the discharging of 120 kg 200# industrial naptha, obtain aluminium flake, aluminium flake can be repeated to grind, at this moment, need aluminium flake is carried out solid-liquid separation, that is: adopt filter press to remove most of solvent and obtain filter cake, again filter cake is ground.With the aluminium flake that obtains after grinding, solid-liquid separation is made product after mediating.
Claims (4)
1, wet process for preparing aluminium powder pigment, with the aluminium powder raw material, solvent, auxiliary agent and steel ball, drop into ball mill in proportion, after grinding under the weak oxide atmospheric condition, carry out solid-liquid separation, make filter cake, it is characterized in that: with filter cake, solvent, auxiliary agent and metal cylindricality medium drop into shredder, under the weak oxide atmospheric condition, carrying out low speed grinds, after grinding obtains aluminium flake, mediate and make product, in above-mentioned technological process, adopt sorting equipment, carry out stage treatment with the aluminium powder raw material or with the aluminium flake after the processing of aluminium powder raw material, by producing coarse fodder in the sorting equipment, fines is to coarse fodder, fines is sent into next procedure or is adopted sorting equipment to carry out stage treatment once more according to the demand of product.
2, wet process for preparing aluminium powder pigment according to claim 1, it is characterized in that: described with filter cake, solvent, auxiliary agent and metal cylindricality medium input shredder, under the weak oxide atmospheric condition, carry out the operation that low speed grinds, can repeat, repeat at most 8 times.
3, wet process for preparing aluminium powder pigment according to claim 1 and 2 is characterized in that: the aluminium flake concentration that drops in the sorting equipment is 1-20%, and temperature is 10-80 ℃.
4, wet process for preparing aluminium powder pigment according to claim 1 and 2 is characterized in that: described sorting equipment can adopt separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00129352A CN1095488C (en) | 2000-11-27 | 2000-11-27 | Wet process for preparing aluminium powder pigment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00129352A CN1095488C (en) | 2000-11-27 | 2000-11-27 | Wet process for preparing aluminium powder pigment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1298905A CN1298905A (en) | 2001-06-13 |
| CN1095488C true CN1095488C (en) | 2002-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00129352A Expired - Fee Related CN1095488C (en) | 2000-11-27 | 2000-11-27 | Wet process for preparing aluminium powder pigment |
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| Country | Link |
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| CN (1) | CN1095488C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580653B (en) * | 2009-06-10 | 2012-05-09 | 华南理工大学 | Organic-inorganic hybrid nanometer film coating aluminum powder pigment and preparation method and application thereof |
| CN101914315A (en) * | 2010-08-25 | 2010-12-15 | 长沙奥特金属颜料有限公司 | Method for preparing high-whiteness aluminum paste |
| CN102002266B (en) * | 2010-10-28 | 2013-03-13 | 长沙族兴新材料股份有限公司 | Preparation method of silver dollar-shaped aluminum pigment |
| CN102476183B (en) * | 2010-11-29 | 2013-07-03 | 合肥旭阳铝颜料有限公司 | Preparation method for flake-like aluminium powder pigment |
| CN113789070A (en) * | 2021-09-16 | 2021-12-14 | 山东银箭金属颜料有限公司 | Wet production process of aluminum powder pigment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1006732A6 (en) * | 1994-08-15 | 1994-11-29 | Shamrock Aluminium R And D Lim | A method of manufacturing aluminium pigment. |
-
2000
- 2000-11-27 CN CN00129352A patent/CN1095488C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1006732A6 (en) * | 1994-08-15 | 1994-11-29 | Shamrock Aluminium R And D Lim | A method of manufacturing aluminium pigment. |
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| Publication number | Publication date |
|---|---|
| CN1298905A (en) | 2001-06-13 |
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Owner name: ZHANG WEI Free format text: FORMER OWNER: SHANDONG MAIYINGDE CHEMICAL CO., LTD. Effective date: 20100122 |
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Effective date of registration: 20100122 Address after: Building 3, building 13, Kaiyuan villa, No. 108 ring mountain road, Lixia District, Shandong, Ji'nan, 301 Patentee after: Zhang Wei Address before: Shandong city of Ji'nan province private science and Technology Industrial Park Xinsha Road No. 5 Patentee before: Manyingde Chemical Co., Ltd., Shandong |
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Granted publication date: 20021204 Termination date: 20131127 |