CN103801678A - Brass alloy coverage slag removal agent and preparation method thereof - Google Patents
Brass alloy coverage slag removal agent and preparation method thereof Download PDFInfo
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- CN103801678A CN103801678A CN201210454746.0A CN201210454746A CN103801678A CN 103801678 A CN103801678 A CN 103801678A CN 201210454746 A CN201210454746 A CN 201210454746A CN 103801678 A CN103801678 A CN 103801678A
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- slag
- slag removal
- removal agent
- cleaning agent
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Abstract
The invention provides a brass alloy coverage slag removal agent and a preparation method thereof. The brass alloy coverage slag removal agent is characterized by comprising following components in percent by mass: 10-20% of a chloride, 20-30% of a fluoride, 10-15% of charcoal dust and the balance of a carbonate. The preparation method of the brass alloy coverage slag removal agent comprises the following steps: burdening by means of putting the components from a large ratio to a small ratio; mixing and uniformly stirring; secondly, drying a mixture and controlling a water content within a range of 0.5%; finally, grinding the dried materials in a powder manner, and controlling the particle size of the powder within a range of 80 meshes. The brass alloy coverage slag removal agent provided by the invention has the advantages of good spreading property, coverage property, separation property and purification property and good effect of slag removal. Not only can slag of a furnace wall and a furnace bottom be removed in a furnace cleaning process by using a manual sprinkling and stirring method, but also the brass alloy coverage slag removal agent can be directly and uniformly sprinkled to the surface of a brass alloy molten body. Compared with the traditional slag removal agent, the additive amount of the slag removal agent provided by the invention is only 0.3-0.5% of a processing amount of brass, so that the copper content in the furnace slag can be effectively reduced, and the gas removal and coverage effects can be realized.
Description
Technical field
The invention belongs to casting technical field of flux, particularly a kind of covering slag-cleaning agent of for brass alloys casting process, cleaning molten being processed use and preparation method thereof.
Background technology
Slag-cleaning agent has another name called deslagging agent, slagging agent, covering slag-cleaning flux, is widely used in casting industry.In brass alloys casting process, for preventing that brass alloys are air-breathing in fusion process, being oxidized and removing gas and oxide slag inclusion in alloy, need to add alloying elements by flux, in order to crystal grain thinning, suppress the illeffects of some trace impurity, improve the processing performance of brass alloys.Existingly for brass alloys casting process, cleaning molten is processed to the covering slag-cleaning agent of use, mostly be neutral flux, i.e. the villaumite of metal and alkaline-earth metal or villiaumite, it becomes and is mainly ice crystal 40%+ salt 60%.This neutral flux both can with brass alloys in oxide slag making, also can remove oxide by adsorbing or melting, degas in addition and covering and heat insulating effect simultaneously, but slag making effect is bad in actual application, slag and brass melt are not easily separated, and slag is loose not, and caking phenomenon is serious; And in slag bright copper content up to slag heavy 20 ~ 25%, not only make the effective use amount of slag-cleaning agent reduce, affect result of use, and copper metal waste seriously, cause the wasting of resources.To this, be badly in need of a kind of novel brass alloy covering slag-cleaning agent of exploitation and reduce costs and economize on resources.
Summary of the invention
First technical problem to be solved by this invention is to provide a kind of brass alloys covering slag-cleaning agent, can effectively carry out scarfing cinder, and reduces the bright copper content in slag, cost-saving.
Second technical problem to be solved by this invention is to provide a kind of preparation method of brass alloys covering slag-cleaning agent, and preparation technology is simple, and the brass alloys covering slag-cleaning agent result of use that makes is good, and can effectively reduce the bright copper content in slag, cost-saving.
The present invention solves the technical scheme that above-mentioned first technical problem adopts: a kind of brass alloys covering slag-cleaning agent, is characterized in that component and content are:
Above percentage is mass percent.
As preferably, described chloride is potassium chloride or sodium chloride.
As preferably, described fluoride is ice crystal or fluorite.
As preferably, described carbonate is calcium carbonate and magnesium carbonate.
Finally, in described brass alloys covering slag-cleaning agent, being also added with mass percent is that 1 ~ 5% order number is spray carbon black powder more than 1000 orders.
The present invention solves the technical scheme that above-mentioned second technical problem adopt: a kind of preparation method of brass alloys covering slag-cleaning agent, is characterized in that step is followed successively by:
1) prepare burden by following component and mass percent:
2), according to the large batching of first output-input ratio, the mixing that feeds intake of the principle of the batching that rear output-input ratio is little, then stirs;
3) utilize baking oven that mixture is dried, its moisture is controlled in 0.5% (wt);
4) last, the material after drying is ground into powder, control granular size in 80 orders.
Finally, described chloride is preferably potassium chloride or sodium chloride, and described fluoride is preferably ice crystal or fluorite, and described carbonate is preferably calcium carbonate and magnesium carbonate.
Compared with prior art, the invention has the advantages that: slag-cleaning agent of the present invention has good spreading out property, spreadability, separation property and refining, and slag is loose; The slagging-off of furnace wall and furnace bottom when it both can adopt the method for manually shedding paddling process for prepurging, also can by manual method Direct Uniform throw to brass bath surface.Compared with traditional slag-cleaning agent, slag-cleaning agent addition of the present invention is only 0.3 ~ 0.5% of brass treating capacity, effectively reduces bright copper content in slag, can also play degasification and covering, is applicable to the melting slagging-off of brass alloys.
The specific embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
Constituent mass proportioning is:
After said components is weighed, by the large batching of first output-input ratio, the principle of the batching that rear output-input ratio is little adds batch mixer, and wherein sodium chloride, potassium chloride play covering effect, ice crystal, fluorite play refining effect, and calcium carbonate, magnesium carbonate play the effect that supplements refining agent; Utilize baking oven that mixture is dried, its moisture is controlled in 0.5wt%; Finally, be ground into powder, its granular size, in 80 orders, is required brass alloys covering slag-cleaning agent.
Subsequent machining technology is described:
Copper material adds stove → fusing (1000 about degree) → stir (2~3 minutes) → add slag-cleaning agent (0.3 ~ 0.5% that consumption is weight of copper) → fully stir (1~2 minute) → insulation and drags for slag
Embodiment 2
Component proportion is:
All the other preparation methods are with embodiment 1
Embodiment 3
Component proportion is:
All the other preparation methods are with embodiment 1
Comparative example 1: mass ratio
Ice crystal (Na
3alF
6) 40%;
Sodium chloride (NaCL) 60%;
Comparative example 2: mass ratio
Calcium carbonate (CaCO
3) 55%;
Sodium chloride (NaCL) 30%;
Silica sand (SiO
2) 15%;
Compare with regard to the result of use of above-described embodiment and existing comparative example comparative example below, comparative result is as follows:
As can be seen from the above table, slag-cleaning agent of the present invention has degasification and covering effect, can obviously reduce the defect such as pore, cracking of copper ingot, reduces zinc oxide scaling loss, and makes the bright copper content to 15.2% in slag, has greatly saved copper resource.
Claims (7)
2. brass alloys covering slag-cleaning agent according to claim 1, is characterized in that described chloride is potassium chloride or sodium chloride.
3. brass alloys covering slag-cleaning agent according to claim 1, is characterized in that described fluoride is ice crystal or fluorite.
4. brass alloys covering slag-cleaning agent according to claim 1, is characterized in that described carbonate is calcium carbonate and magnesium carbonate.
5. brass alloys covering slag-cleaning agent according to claim 1, it is characterized in that being also added with in described brass alloys covering slag-cleaning agent mass percent and be 1 ~ 5% order number is spray carbon black powder more than 1000 orders.
6. a preparation method for brass alloys covering slag-cleaning agent, is characterized in that step is followed successively by:
1) prepare burden by following component and mass percent:
2), according to the large batching of first output-input ratio, the mixing that feeds intake of the principle of the batching that rear output-input ratio is little, then stirs;
3) utilize baking oven that mixture is dried, its moisture is controlled at 0.5%(wt) in;
4) last, the material after drying is ground into powder, control granular size in 80 orders.
7. preparation method according to claim 6, is characterized in that described chloride is potassium chloride or sodium chloride, and described fluoride is ice crystal or fluorite, and described carbonate is calcium carbonate and magnesium carbonate.
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Cited By (9)
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CN104894411A (en) * | 2015-04-16 | 2015-09-09 | 新疆大学 | Slagging agent used for melting copper alloy and application method thereof |
CN105695790A (en) * | 2016-04-05 | 2016-06-22 | 绍兴市越宇铜带有限公司 | Copper alloy aluminum removing compound agent and preparation and use method thereof |
CN106811615A (en) * | 2016-12-12 | 2017-06-09 | 佛山市尚好门窗有限责任公司 | A kind of aluminium alloy smelting cleaning agent |
CN110331305A (en) * | 2019-07-23 | 2019-10-15 | 北京科技大学 | A kind of preparation and its application method of brass alloys coverture |
CN110527858A (en) * | 2019-08-29 | 2019-12-03 | 浙江科宇金属材料有限公司 | A kind of holding furnace brass coverture and its application method |
CN110791680A (en) * | 2019-12-10 | 2020-02-14 | 宁波金田铜业(集团)股份有限公司 | Free-cutting brass wire and preparation method thereof |
CN113088750A (en) * | 2021-03-19 | 2021-07-09 | 宁波金田铜业(集团)股份有限公司 | Copper-iron alloy wire and preparation method thereof |
CN114134352A (en) * | 2021-11-26 | 2022-03-04 | 宁波金田铜业(集团)股份有限公司 | Slag remover for scrap smelting of brass and method for smelting brass |
CN115558820A (en) * | 2022-11-01 | 2023-01-03 | 安徽鑫科铜业有限公司 | Bronze deslagging agent, preparation method and application |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104894411A (en) * | 2015-04-16 | 2015-09-09 | 新疆大学 | Slagging agent used for melting copper alloy and application method thereof |
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CN105695790B (en) * | 2016-04-05 | 2018-06-19 | 绍兴市越宇铜带有限公司 | One Albatra metal is except aluminium complexing agent and its prepares application method |
CN106811615A (en) * | 2016-12-12 | 2017-06-09 | 佛山市尚好门窗有限责任公司 | A kind of aluminium alloy smelting cleaning agent |
CN110331305A (en) * | 2019-07-23 | 2019-10-15 | 北京科技大学 | A kind of preparation and its application method of brass alloys coverture |
CN110527858A (en) * | 2019-08-29 | 2019-12-03 | 浙江科宇金属材料有限公司 | A kind of holding furnace brass coverture and its application method |
CN110791680A (en) * | 2019-12-10 | 2020-02-14 | 宁波金田铜业(集团)股份有限公司 | Free-cutting brass wire and preparation method thereof |
CN113088750A (en) * | 2021-03-19 | 2021-07-09 | 宁波金田铜业(集团)股份有限公司 | Copper-iron alloy wire and preparation method thereof |
CN114134352A (en) * | 2021-11-26 | 2022-03-04 | 宁波金田铜业(集团)股份有限公司 | Slag remover for scrap smelting of brass and method for smelting brass |
CN115558820A (en) * | 2022-11-01 | 2023-01-03 | 安徽鑫科铜业有限公司 | Bronze deslagging agent, preparation method and application |
CN115558820B (en) * | 2022-11-01 | 2023-11-24 | 广西鑫科铜业有限公司 | Bronze deslagging agent, preparation method and application |
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