CN111286639A - A special slag breaking agent for recycled aluminum-silicon alloy and its preparation method and application - Google Patents
A special slag breaking agent for recycled aluminum-silicon alloy and its preparation method and application Download PDFInfo
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- 229910000676 Si alloy Inorganic materials 0.000 title claims abstract description 56
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000002893 slag Substances 0.000 title abstract description 32
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims abstract description 30
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 30
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000002994 raw material Substances 0.000 claims abstract description 25
- 238000001035 drying Methods 0.000 claims abstract description 23
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 16
- 229910001634 calcium fluoride Inorganic materials 0.000 claims abstract description 15
- 229910001610 cryolite Inorganic materials 0.000 claims abstract description 15
- 239000001103 potassium chloride Substances 0.000 claims abstract description 15
- 235000011164 potassium chloride Nutrition 0.000 claims abstract description 15
- 235000010333 potassium nitrate Nutrition 0.000 claims abstract description 15
- 239000004323 potassium nitrate Substances 0.000 claims abstract description 15
- 239000011780 sodium chloride Substances 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims description 43
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 43
- 238000000034 method Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 4
- 239000011734 sodium Substances 0.000 claims 4
- 229910052708 sodium Inorganic materials 0.000 claims 4
- 238000002156 mixing Methods 0.000 claims 1
- 238000007873 sieving Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000003723 Smelting Methods 0.000 abstract description 20
- 238000004519 manufacturing process Methods 0.000 abstract description 18
- 229910045601 alloy Inorganic materials 0.000 abstract description 12
- 239000000956 alloy Substances 0.000 abstract description 12
- -1 sodium fluorosilicate Chemical compound 0.000 abstract description 11
- 239000000203 mixture Substances 0.000 abstract description 10
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000002203 pretreatment Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 230000007423 decrease Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 abstract description 3
- 229910052749 magnesium Inorganic materials 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract description 3
- 229910052725 zinc Inorganic materials 0.000 abstract description 3
- 239000002973 irritant agent Substances 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000265 homogenisation Methods 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000012805 post-processing Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
发明公开了一种再生铝硅合金专用打渣剂及其制备方法与应用。所述的再生铝硅合金专用打渣剂包括原料重量份的氯化钠30~50份、氯化钾10~40份、氟硅酸钠10~30份、冰晶石10~30份、硝酸钾2~6份和氟化钙2~6份。制备方法包括前处理、烘干和后处理步骤。应用为所述的再生铝硅合金专用打渣剂在制备熔炼铝硅合金打渣剂中的应用。本发明所述的再生铝硅合金专用打渣剂在生产过程中无其他杂质合金元素引入（如Mg、Cu、Zn），保证了所熔炼合金的化学成分稳定，同时可以有效防止金属熔体的吸气，避免产生气孔、疏松等缺陷。生产工人的劳动强度显著降低，减轻了企业生产环保压力。同时由于对原材料的挑剔性下降，降低了企业的原材料成本，提高了企业的经济效益。The invention discloses a special slagging agent for regenerated aluminum-silicon alloy and its preparation method and application. The special slag breaking agent for regenerated aluminum-silicon alloy includes 30-50 parts of sodium chloride, 10-40 parts of potassium chloride, 10-30 parts of sodium fluorosilicate, 10-30 parts of cryolite, and potassium nitrate in parts by weight of raw materials. 2~6 parts and calcium fluoride 2~6 parts. The preparation method includes pre-treatment, drying and post-treatment steps. The application is the application of the special slagging agent for regenerated aluminum-silicon alloys in the preparation of the slag-removing agent for smelting aluminum-silicon alloys. The special slagging agent for regenerated aluminum-silicon alloy according to the present invention has no other impurity alloy elements (such as Mg, Cu, Zn) introduced in the production process, which ensures the stable chemical composition of the smelted alloy, and can effectively prevent the metal melt from breaking down. Inhale to avoid defects such as pores and looseness. The labor intensity of production workers is significantly reduced, which relieves the pressure on production and environmental protection of enterprises. At the same time, due to the decline in the picky of raw materials, the cost of raw materials of enterprises is reduced, and the economic benefits of enterprises are improved.
Description
技术领域technical field
本发明属于冶金技术领域，进一步属于再生铝合金生产领域，具体涉及一种再生铝硅合金专用打渣剂及其制备方法与应用。The invention belongs to the technical field of metallurgy, and further belongs to the field of regenerated aluminum alloy production, in particular to a special slagging agent for regenerated aluminum-silicon alloy and a preparation method and application thereof.
背景技术Background technique
随着全球资源日益匮乏张和能源短缺，节能环保已成为全球铝企业共同孜孜以求的目标。自2001年中国原铝产量超过美国之后，就一直保持世界第一铝生产国和消费国的头衔。随着铝资源的不断开采，我国剩余的铝资源已显得不够富余。随着生产量和消费量的激增，我国可供使用的废铝资源也逐渐增加，废铝的应用潜力不断显现。从铝冶炼角度看，生产一吨电解铝需要耗电12000-13000kw/h，而应用废铝进行再生铝合金生产，只需要进行重熔，避免了冶炼过程的高能源消耗，生产耗能仅为电解阶段的10%，同时排放的污染物更少。因此，在铝合金生产过程中采用部分废铝替代重熔用铝锭，甚至全部用废铝重熔进行再生铝生产，可以大幅度降低企业的生产成本，使用废铝进行再生铝合金生产已经成为了龙头铝企业的新趋势。由于废铝往往会在其表面喷涂各种涂料或包覆各种有机或无机材料等，一旦这些物质被带入到原料的熔炼过程中，会产生一定数量的非金属夹杂，使得再生铝合金的性能品质下降，因此开发与之相适应的打渣剂显得尤为迫切。With the increasing scarcity of global resources and energy shortages, energy conservation and environmental protection have become the common goal of global aluminum companies. Since China's primary aluminum output surpassed that of the United States in 2001, it has maintained the title of the world's largest aluminum producer and consumer. With the continuous exploitation of aluminum resources, the remaining aluminum resources in my country have become insufficient. With the surge in production and consumption, the available scrap aluminum resources in my country have gradually increased, and the application potential of scrap aluminum has continued to emerge. From the perspective of aluminum smelting, the production of one ton of electrolytic aluminum requires power consumption of 12000-13000kw/h, and the use of scrap aluminum for the production of recycled aluminum alloys only requires remelting, which avoids the high energy consumption in the smelting process, and the production energy consumption is only 10% of the electrolysis stage, while emitting less pollutants. Therefore, in the process of aluminum alloy production, the use of part of scrap aluminum to replace aluminum ingots for remelting, or even remelting all scrap aluminum for secondary aluminum production, can greatly reduce the production cost of enterprises. The use of scrap aluminum for secondary aluminum alloy production has become a The new trend of leading aluminum enterprises. Since scrap aluminum is often sprayed with various coatings or coated with various organic or inorganic materials, etc., once these substances are brought into the smelting process of raw materials, a certain amount of non-metallic inclusions will be generated, which makes the secondary aluminum alloy. The performance and quality have declined, so it is particularly urgent to develop a suitable slag agent.
发明内容SUMMARY OF THE INVENTION
本发明的第一目的在于提供一种再生铝硅合金专用打渣剂；第二目的在于提供所述的再生铝硅合金专用打渣剂的制备方法；第三目的在于提供所述的再生铝硅合金专用打渣剂的应用。The first object of the present invention is to provide a special slag agent for regenerated aluminum-silicon alloy; the second object is to provide a preparation method of the special slag agent for regenerated aluminum-silicon alloy; the third object is to provide the regenerated aluminum-silicon alloy Application of special slag agent for alloys.
本发明的第一目的是这样实现的，所述的再生铝硅合金专用打渣剂包括原料重量份的氯化钠30~50份、氯化钾10~40份、氟硅酸钠10~30份、冰晶石10~30份、硝酸钾2~6份和氟化钙2~6份。The first object of the present invention is achieved in this way, the special slag agent for regenerated aluminum-silicon alloy includes 30-50 parts of sodium chloride, 10-40 parts of potassium chloride, and 10-30 parts of sodium fluorosilicate in parts by weight of raw materials. parts, 10~30 parts cryolite, 2~6 parts potassium nitrate and 2~6 parts calcium fluoride.
本发明的第二目的是这样实现的，包括前处理、烘干和后处理步骤，具体包括：The second object of the present invention is achieved in this way, including pre-processing, drying and post-processing steps, specifically including:
A、前处理：将配方配比的各原料分别粉碎过10目筛混合均匀得到物料a；A. Pre-treatment: pulverize each raw material of the formula and pass through a 10-mesh sieve and mix evenly to obtain material a;
B、烘干：将物料a烘干至含水率＜0.5%得到物料b；B. Drying: drying material a to a moisture content <0.5% to obtain material b;
C、后处理：将物料b破碎得到目标物再生铝硅合金专用打渣剂。C. Post-processing: crushing the material b to obtain a special slag agent for the regenerated aluminum-silicon alloy of the target object.
本发明的第三目的是这样实现的，所述的再生铝硅合金专用打渣剂在制备熔炼铝硅合金打渣剂中的应用。The third object of the present invention is achieved by the application of the slag-removing agent for regenerated aluminum-silicon alloys in the preparation of the slag-removing agent for smelting aluminum-silicon alloys.
本发明所述的再生铝硅合金专用打渣剂与传统铝硅合金熔炼用打渣剂相比，在生产过程中无其他杂质合金元素引入（如Mg、Cu、Zn），保证了所熔炼合金的化学成分稳定。在使用过程中具有较广的温度范围（740-780℃），无刺激性气体产生，能够将各种复杂成分的熔炼渣吸附至铝熔体表面，在扒渣工序熔炼渣与铝熔体分离彻底，同时可以有效防止金属熔体的吸气，避免产生气孔、疏松等缺陷。生产工人的劳动强度显著降低，减轻了企业生产环保压力。同时由于对原材料的挑剔性下降，降低了企业的原材料成本，提高了企业的经济效益。Compared with the traditional slagging agent for aluminum-silicon alloy smelting, the special slagging agent for regenerated aluminum-silicon alloy of the present invention has no other impurity alloy elements (such as Mg, Cu, Zn) introduced in the production process, which ensures that the smelted alloy is smelted. The chemical composition is stable. It has a wide temperature range (740-780°C) during use, no irritating gas is generated, and it can adsorb smelting slag of various complex components to the surface of the aluminum melt, and separate the smelting slag from the aluminum melt in the slag removal process. At the same time, it can effectively prevent the inhalation of the metal melt and avoid defects such as pores and looseness. The labor intensity of production workers is significantly reduced, which relieves the pressure on production and environmental protection of enterprises. At the same time, due to the decline in the picky of raw materials, the cost of raw materials of enterprises is reduced, and the economic benefits of enterprises are improved.
本发明解决废铝作为原料熔炼过程中渣成分复杂，不易铝渣分离的问题，具体方案如下:（1）该打渣剂由下列重量份数的组分组成：氯化钠40-50份，氯化钾10-30份，氟硅酸钠15-20份，冰晶石10-20份，硝酸钾2-4份，氟化钙2-4份。（2）按照重量份数比将原料配好后，通过混粉机混合均匀，将混合均匀的打渣剂放入干燥箱内烘干，在150-200℃下烘干1小时，烘干后重新破碎，破碎后按规定重量用防水塑料袋封装。（3）该打渣剂适合在硅含量5-10%的铝硅合金中使用，同时对熔炼过程中原材料品质要求大幅度下降，废铝替代原铝的使用量最高可提升至80%。（4）在合金熔炼过程中，添加温度控制在740-780℃，将本产品均匀的投入到铝熔体中，搅拌均匀后，其产生松散灰白色的浮渣，将浮渣扒干净即可得到洁净的熔体。The present invention solves the problem that the slag composition of waste aluminum is complex in the smelting process of the raw material, and it is not easy to separate the aluminum slag, and the specific scheme is as follows: (1) this slag breaking agent is composed of the following components by weight: 40-50 parts of sodium chloride, 10-30 parts of potassium chloride, 15-20 parts of sodium fluorosilicate, 10-20 parts of cryolite, 2-4 parts of potassium nitrate, and 2-4 parts of calcium fluoride. (2) After the raw materials are prepared according to the ratio of parts by weight, they are mixed evenly by a powder mixer, and the evenly mixed slag agent is placed in a drying box for drying, and dried at 150-200 ° C for 1 hour. After drying Re-crushed, and packaged in waterproof plastic bags according to the specified weight after crushing. (3) The slagging agent is suitable for use in aluminum-silicon alloys with a silicon content of 5-10%. At the same time, the quality requirements of raw materials in the smelting process are greatly reduced, and the use of scrap aluminum to replace primary aluminum can be increased to 80% at most. (4) During the alloy smelting process, the addition temperature is controlled at 740-780℃, and the product is evenly put into the aluminum melt. After stirring evenly, it will produce loose gray-white scum, which can be obtained by cleaning the scum. clean melt.
本发明的有益效果：Beneficial effects of the present invention:
通过该打渣剂的使用，在生产过程中无其他杂质合金元素引入（如Mg、Cu、Zn），保证了所熔炼合金的化学成分稳定。在使用过程中具有较广的温度范围（740-780℃），无刺激性气体产生，能够将各种复杂成分的熔炼渣吸附至铝熔体表面，在扒渣工序熔炼渣与铝熔体分离彻底，同时可以有效防止金属熔体的吸气，避免产生气孔、疏松等缺陷。生产工人的劳动强度显著降低，减轻了企业生产环保压力。同时由于对原材料的挑剔性下降，降低了企业的原材料成本，提高了企业的经济效益。Through the use of the slagging agent, no other impurity alloy elements (such as Mg, Cu, Zn) are introduced in the production process, which ensures the stable chemical composition of the smelted alloy. It has a wide temperature range (740-780°C) during use, no irritating gas is generated, and it can adsorb smelting slag of various complex components to the surface of the aluminum melt, and separate the smelting slag from the aluminum melt in the slag removal process. At the same time, it can effectively prevent the inhalation of the metal melt and avoid defects such as pores and looseness. The labor intensity of production workers is significantly reduced, which relieves the pressure on production and environmental protection of enterprises. At the same time, due to the decline in the picky of raw materials, the cost of raw materials of enterprises is reduced, and the economic benefits of enterprises are improved.
本发明的再生铝硅合金专用打渣剂在硅含量为5~10%（wt）的铝硅合金熔炼中使用，其中废铝替代原铝的使用量最高可提升至80%。具体为：在硅含量5-10%的铝硅合金熔炼过程中，将本产品均匀的投入到铝熔体中，添加温度控制在740-780℃，搅拌均匀后，其产生松散灰白色的浮渣，将浮渣扒干净即可得到洁净的熔体。The special-purpose slag agent for recycled aluminum-silicon alloys of the present invention is used in the smelting of aluminum-silicon alloys with a silicon content of 5-10% (wt), wherein the use amount of waste aluminum to replace primary aluminum can be increased to 80% at most. Specifically: in the smelting process of aluminum-silicon alloy with a silicon content of 5-10%, the product is evenly put into the aluminum melt, the temperature of addition is controlled at 740-780 °C, and after stirring evenly, it produces loose gray-white scum. , clean the scum to get a clean melt.
具体实施方式Detailed ways
下面结合实施例对本发明作进一步的说明，但不以任何方式对本发明加以限制，基于本发明教导所作的任何变换或替换，均属于本发明的保护范围。The present invention is further described below in conjunction with the examples, but the present invention is not limited in any way, and any transformation or replacement made based on the teachings of the present invention belongs to the protection scope of the present invention.
本发明所述的再生铝硅合金专用打渣剂包括原料重量份的氯化钠30~50份、氯化钾10~40份、氟硅酸钠10~30份、冰晶石10~30份、硝酸钾2~6份和氟化钙2~6份。The special slagging agent for regenerated aluminum-silicon alloys of the present invention comprises 30-50 parts by weight of raw materials of sodium chloride, 10-40 parts of potassium chloride, 10-30 parts of sodium fluorosilicate, 10-30 parts of cryolite, 2 to 6 parts of potassium nitrate and 2 to 6 parts of calcium fluoride.
所述的再生铝硅合金专用打渣剂包括原料重量份的氯化钠40~50份、氯化钾10~30份、氟硅酸钠15~20份、冰晶石10~20份、硝酸钾2~4份和氟化钙2~4份。The special slag breaking agent for regenerated aluminum-silicon alloy includes 40-50 parts of sodium chloride, 10-30 parts of potassium chloride, 15-20 parts of sodium fluorosilicate, 10-20 parts of cryolite, and potassium nitrate in parts by weight of raw materials. 2~4 parts and calcium fluoride 2~4 parts.
所述的再生铝硅合金专用打渣剂包括原料重量份的氯化钠45份、氯化钾25份、氟硅酸钠10份、冰晶石15份、硝酸钾3份和氟化钙3份。The slagging agent for the regenerated aluminum-silicon alloy includes 45 parts of sodium chloride, 25 parts of potassium chloride, 10 parts of sodium fluorosilicate, 15 parts of cryolite, 3 parts of potassium nitrate and 3 parts of calcium fluoride in parts by weight of raw materials. .
所述的再生铝硅合金专用打渣剂包括原料重量份的氯化钠35份、氯化钾20份、氟硅酸钠20份、冰晶石20份、硝酸钾2份和氟化钙3份。The slagging agent for regenerated aluminum-silicon alloys includes 35 parts of sodium chloride, 20 parts of potassium chloride, 20 parts of sodium fluorosilicate, 20 parts of cryolite, 2 parts of potassium nitrate and 3 parts of calcium fluoride in parts by weight of raw materials. .
本发明所述的再生铝硅合金专用打渣剂的制备方法，包括前处理、烘干和后处理步骤，具体包括：The preparation method of the special slagging agent for regenerated aluminum-silicon alloy according to the present invention includes the steps of pre-treatment, drying and post-treatment, and specifically includes:
A、前处理：将配方配比的各原料分别粉碎过10目筛混合均匀得到物料a；A. Pre-treatment: pulverize each raw material of the formula and pass through a 10-mesh sieve and mix evenly to obtain material a;
B、烘干：将物料a烘干至含水率＜0.5%得到物料b；B. Drying: drying material a to a moisture content <0.5% to obtain material b;
C、后处理：将物料b破碎得到目标物再生铝硅合金专用打渣剂。C. Post-processing: crushing the material b to obtain a special slag agent for the regenerated aluminum-silicon alloy of the target object.
所述的烘干的温度为150~200℃。The drying temperature is 150-200°C.
所述的破碎的粒度为1~4cm。The crushed particle size is 1 to 4 cm.
本发明所述的再生铝硅合金专用打渣剂的应用为所述的再生铝硅合金专用打渣剂在制备熔炼铝硅合金打渣剂中的应用。The application of the special slagging agent for regenerated aluminum-silicon alloys of the present invention is the application of the special slag-removing agent for regenerated aluminum-silicon alloys in preparing the slag-removing agent for smelting aluminum-silicon alloys.
所述的铝硅合金为硅含量为质量百分数5~10%的铝硅合金。The aluminum-silicon alloy is an aluminum-silicon alloy with a silicon content of 5-10% by mass.
所述的再生铝硅合金打渣剂是在铝硅合金熔炼温度在740~780℃时候添加到铝熔体中，搅拌均匀后产生松散灰白色的浮渣，将浮渣扒干净后即得到洁净的熔体。The regenerated aluminum-silicon alloy slag-removing agent is added to the aluminum melt when the aluminum-silicon alloy melting temperature is 740-780 ° C, and after stirring evenly, a loose gray-white scum is produced, and the scum is cleaned to obtain a clean scum. melt.
下面以具体实施案例对本发明做进一步说明：The present invention is further described below with specific implementation cases:
实施例1Example 1
（1）将氯化钠45份，氯化钾25份，氟硅酸钠10份，冰晶石15份，硝酸钾3份，氟化钙3份。(1) 45 parts of sodium chloride, 25 parts of potassium chloride, 10 parts of sodium fluorosilicate, 15 parts of cryolite, 3 parts of potassium nitrate, and 3 parts of calcium fluoride.
（2）按照重量份数比将原料配好后，分别粉碎过10目筛通过混粉机混合均匀，将混合均匀的打渣剂放入干燥箱内烘干，在180℃下烘干1小时，烘干后重新破碎至粒度为1~2cm，破碎后按规定重量用防水塑料袋封装。(2) After the raw materials are prepared according to the ratio of parts by weight, pulverize them through a 10-mesh sieve and mix them evenly with a powder mixer. Put the evenly mixed slag agent in a drying box and dry it at 180 ° C for 1 hour. , re-crushed to a particle size of 1~2cm after drying, and packaged in a waterproof plastic bag according to the specified weight after crushing.
（3）该打渣剂适合在硅含量5-7%的铝硅合金中使用，在合金熔炼过程中，添加温度控制在740-760℃，将本产品均匀的投入到铝熔体中，搅拌均匀后，其产生松散灰白色的浮渣，将浮渣扒干净即可得到洁净的熔体。整个过程无刺激性气体产生，浮渣与铝熔体分离效果好。采用本打渣剂生产得到的再生铝硅合金抗拉强度≥195MPa，铝熔体氢含量＜0.16ml/100gAl，熔体渣含量＜0.03mm2/kgAl，产品针孔度提升至1级。(3) The slagging agent is suitable for use in aluminum-silicon alloys with silicon content of 5-7%. During the alloy smelting process, the addition temperature is controlled at 740-760 ° C, and the product is evenly put into the aluminum melt and stirred. After homogenization, it produces loose gray-white scum, and the scum can be cleaned to obtain a clean melt. No irritating gas is produced in the whole process, and the separation effect of dross and aluminum melt is good. The tensile strength of the recycled aluminum-silicon alloy produced by the slag breaker is greater than or equal to 195MPa, the hydrogen content of the aluminum melt is less than 0.16ml/100gAl, the slag content of the melt is less than 0.03mm 2 /kgAl, and the pinhole degree of the product is improved to level 1.
实施例2Example 2
（1）将氯化钠35份，氯化钾20份，氟硅酸钠20份，冰晶石20份，硝酸钾2份，氟化钙3份。(1) 35 parts of sodium chloride, 20 parts of potassium chloride, 20 parts of sodium fluorosilicate, 20 parts of cryolite, 2 parts of potassium nitrate, and 3 parts of calcium fluoride.
（2）按照重量份数比将原料配好后，分别粉碎过10目筛通过混粉机混合均匀，将混合均匀的打渣剂放入干燥箱内烘干，在180℃下烘干1小时，烘干后重新破碎至粒度为1~3cm，破碎后按规定重量用防水塑料袋封装。(2) After the raw materials are prepared according to the ratio of parts by weight, pulverize them through a 10-mesh sieve and mix them evenly with a powder mixer. Put the evenly mixed slag agent in a drying box and dry it at 180 ° C for 1 hour. , re-crushed to a particle size of 1~3cm after drying, and packaged in a waterproof plastic bag according to the specified weight after crushing.
（3）该打渣剂适合在硅含量7-10%的铝硅合金中使用，在合金熔炼过程中，添加温度控制在760-780℃，将本产品均匀的投入到铝熔体中，搅拌均匀后，其产生松散灰白色的浮渣，将浮渣扒干净即可得到洁净的熔体。整个过程无刺激性气体产生，浮渣与铝熔体分离效果好。采用本打渣剂生产得到的铝硅合金抗拉强度≥205MPa，铝熔体氢含量＜0.18ml/100gAl，熔体渣含量＜0.05mm2/kgAl，产品针孔度提升至1级。(3) The slagging agent is suitable for use in aluminum-silicon alloys with silicon content of 7-10%. During the alloy smelting process, the addition temperature is controlled at 760-780 °C, and the product is evenly put into the aluminum melt and stirred. After homogenization, it produces loose gray-white scum, and the scum can be cleaned to obtain a clean melt. No irritating gas is produced in the whole process, and the separation effect of dross and aluminum melt is good. The tensile strength of the aluminum-silicon alloy produced by the slagging agent is greater than or equal to 205MPa, the hydrogen content of the aluminum melt is less than 0.18ml/100gAl, the slag content of the melt is less than 0.05mm 2 /kgAl, and the pinhole degree of the product is improved to level 1.
实施例3Example 3
（1）将氯化钠30份，氯化钾10份，氟硅酸钠10份，冰晶石10份，硝酸钾2份，氟化钙2份。(1) 30 parts of sodium chloride, 10 parts of potassium chloride, 10 parts of sodium fluorosilicate, 10 parts of cryolite, 2 parts of potassium nitrate, and 2 parts of calcium fluoride.
（2）按照重量份数比将原料配好后，分别粉碎过10目筛通过混粉机混合均匀，将混合均匀的打渣剂放入干燥箱内烘干，在150℃下烘干1.5小时，烘干后重新破碎至粒度为2~3cm，破碎后按规定重量用防水塑料袋封装。(2) After preparing the raw materials according to the ratio of parts by weight, pulverize them through a 10-mesh sieve and mix them evenly with a powder mixer. Put the evenly mixed slag agent in a drying box and dry it at 150 ° C for 1.5 hours. , re-crushed to a particle size of 2~3cm after drying, and packaged in a waterproof plastic bag according to the specified weight after crushing.
（3）该打渣剂适合在硅含量5-7%的铝硅合金中使用，在合金熔炼过程中，添加温度控制在740-760℃，将本产品均匀的投入到铝熔体中，搅拌均匀后，其产生松散灰白色的浮渣，将浮渣扒干净即可得到洁净的熔体。整个过程无刺激性气体产生，浮渣与铝熔体分离效果好。采用本打渣剂生产得到的再生铝硅合金抗拉强度≥200MPa，铝熔体氢含量＜0.17ml/100gAl，熔体渣含量＜0.05mm2/kgAl，产品针孔度提升至1级。(3) The slagging agent is suitable for use in aluminum-silicon alloys with silicon content of 5-7%. During the alloy smelting process, the addition temperature is controlled at 740-760 ° C, and the product is evenly put into the aluminum melt and stirred. After homogenization, it produces loose gray-white scum, and the scum can be cleaned to obtain a clean melt. No irritating gas is produced in the whole process, and the separation effect of dross and aluminum melt is good. The tensile strength of the recycled aluminum-silicon alloy produced by the slag breaker is greater than or equal to 200MPa, the hydrogen content of the aluminum melt is less than 0.17ml/100gAl, the slag content of the melt is less than 0.05mm 2 /kgAl, and the pinhole degree of the product is improved to level 1.
实施例4Example 4
（1）将氯化钠50份，氯化钾40份，氟硅酸钠30份，冰晶石30份，硝酸钾6份，氟化钙6份。(1) 50 parts of sodium chloride, 40 parts of potassium chloride, 30 parts of sodium fluorosilicate, 30 parts of cryolite, 6 parts of potassium nitrate, and 6 parts of calcium fluoride.
（2）按照重量份数比将原料配好后，分别粉碎过10目筛通过混粉机混合均匀，将混合均匀的打渣剂放入干燥箱内烘干，在200℃下烘干0.9小时，烘干后重新破碎至粒度为3~4cm，破碎后按规定重量用防水塑料袋封装。(2) After the raw materials are prepared according to the ratio of parts by weight, pulverize them through a 10-mesh sieve and mix them evenly with a powder mixer. Put the evenly mixed slag agent in a drying box to dry, and dry it at 200 ° C for 0.9 hours , re-crushed to a particle size of 3~4cm after drying, and packaged in a waterproof plastic bag according to the specified weight after crushing.
（3）该打渣剂适合在硅含量5-7%的铝硅合金中使用，在合金熔炼过程中，添加温度控制在740-760℃，将本产品均匀的投入到铝熔体中，搅拌均匀后，其产生松散灰白色的浮渣，将浮渣扒干净即可得到洁净的熔体。整个过程无刺激性气体产生，浮渣与铝熔体分离效果好。采用本打渣剂生产得到的再生铝硅合金抗拉强度≥220MPa，铝熔体氢含量＜0.18ml/100gAl，熔体渣含量＜0.04mm2/kgAl，产品针孔度提升至1级。(3) The slagging agent is suitable for use in aluminum-silicon alloys with silicon content of 5-7%. During the alloy smelting process, the addition temperature is controlled at 740-760 ° C, and the product is evenly put into the aluminum melt and stirred. After homogenization, it produces loose gray-white scum, and the scum can be cleaned to obtain a clean melt. No irritating gas is produced in the whole process, and the separation effect of dross and aluminum melt is good. The tensile strength of the recycled aluminum-silicon alloy produced by the slag breaker is greater than or equal to 220MPa, the hydrogen content of the aluminum melt is less than 0.18ml/100gAl, the slag content of the melt is less than 0.04mm 2 /kgAl, and the pinhole degree of the product is improved to level 1.
最后说明的是，以上优选实施例仅用于说明本发明的技术方案而非限制，尽管通过上述优选实施例已经对本发明进行了详细的描述，但本领域技术人员应当理解，可以在形式上和细节上对其作出各种各样的改变，而不偏离本发明权利要求书所限定的范围。Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should Various changes may be made in details without departing from the scope of the invention as defined by the claims.
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