CN109702141B - High-efficiency silicon-iron alloy ingot mold release agent - Google Patents
High-efficiency silicon-iron alloy ingot mold release agent Download PDFInfo
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- CN109702141B CN109702141B CN201910101869.8A CN201910101869A CN109702141B CN 109702141 B CN109702141 B CN 109702141B CN 201910101869 A CN201910101869 A CN 201910101869A CN 109702141 B CN109702141 B CN 109702141B
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- ingot mold
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Abstract
The invention discloses a high-efficiency silicon-iron alloy ingot mold release agent which is characterized by comprising the following components: sodium-containing compound, silica powder and water, wherein the sodium-containing compound and the silica powder can generate sodium silicate under the condition of heating in aqueous solution, the sodium-containing alkali is sodium hydroxide, and the ferrosilicon ingot mold release agent comprises the following components in parts by weight: the proportion of the sodium hydroxide, the silicon micropowder and the water is as follows: 0.05-0.3: 0.05-0.3: 1. in actual use, the release agent has a simple formula and is convenient to prepare, a layer of gel can be formed on the surface of the ingot mold, so that direct contact between molten iron and the ingot mold is prevented, cooled ferroalloy can be easily separated from the ingot mold after the molten iron is cooled and solidified, solid waste silicon micro powder generated in the ferroalloy production process is effectively used as a raw material to prepare the release agent, the cost of ferroalloy production is not increased, and the actual use effect is good.
Description
Technical Field
The invention relates to a mold release agent, in particular to a high-efficiency silicon-iron alloy ingot mold release agent.
Background
The domestic iron alloy pouring mode mostly adopts the ingot mould pouring, and the ingot mould pouring method has the characteristics of high flexibility, easily-distinguished finished product grade and suitability for pouring of almost all kinds of iron alloys, but has low labor productivity, needs more manual work for operation, and is a necessary trend for the development of future iron alloy pouring by adopting automatic pouring instead of manual work. At present, only france and japan are countries in which the automated casting technology is mature. The finished product thickness of a French straight line casting machine is not suitable for most customers in China, and the release agent component of a Japanese disc casting machine is difficult to intervene because the release agent component is not shared externally.
With the rapid development of science and technology in China, the mechanical automation and transmission functions are no longer the problem of no breakthrough, but the easy adhesion between the ferroalloy and the ingot mold is still the bottleneck problem of preventing the ferroalloy industry from realizing automatic tapping. In the PVC/PVA recycling economy industry chain, the smelting of lime, ferroalloy and calcium carbide and the preparation of products such as caustic soda, caustic soda flakes, paste resin are generally accompanied at the same time, and the invention utilizes the by-products generated in the PVC/PVA recycling economy industry chain to obtain a reagent which has strong heat resistance and is suitable for separating ferroalloy from an ingot mould by using local materials.
Disclosure of Invention
The invention solves the bottleneck problem that the easy adhesion between ferroalloy and an ingot mold still hinders the realization of automatic tapping in ferroalloy industry in the ferrosilicon production process in the prior art, and provides a high-efficiency ferrosilicon alloy ingot mold release agent.
The invention is realized by the following technical scheme:
the utility model provides a high-efficient ferrosilicon alloy ingot mould release agent which characterized in that, ferrosilicon alloy ingot mould release agent includes following component: the sodium silicate solution comprises a sodium-containing compound, silicon micropowder and water, wherein the sodium-containing compound and the silicon micropowder can generate sodium silicate under the condition of heating in an aqueous solution.
At present, after the good molten iron of smelting pours on the ingot mould in ferrosilicon production process, molten iron can produce the bonding with between the ingot mould, it comes to hardly separate molten iron and ingot mould after the molten iron cooling solidifies, in the hot stove production process in large-scale ferroalloy ore deposit, this problem has directly influenced the ferroalloy trade and has realized automatic tapping, so this application provides a high-efficient ferrosilicon alloy ingot mould release agent, through using sodium hydroxide, water and the release agent of making after mixing according to certain proportion with the silicon micropowder of ferroalloy production field collection, and according to: firstly, adding quantitative clear water, sodium hydroxide and silicon micropowder into a release agent preparation tank, and then stirring the mixed solution to fully mix caustic soda, the silicon micropowder and water; secondly, a certain amount of mixed release agent reagent is taken, the release agent is put into a spraying device, and a release agent layer with the thickness of 0.1mm to 5mm is formed on the surface of the ferrosilicon alloy ingot mold by spraying; thirdly, spraying a release agent on the ingot mould, heating and drying the release agent, solidifying the release agent and forming a layer of film on the surface of the release agent, pouring the smelted molten iron on the ingot mould, and quickly hardening and solidifying the release agent on the surface of the ingot mould by the heat (200-300 ℃) of the ferrosilicon alloy ingot mould to form a layer of gel on the surface of the ingot mould; and finally, naturally cooling the ingot mold filled with the molten iron, and separating the iron alloy from the ingot mold after tapping the cooled iron alloy surface by using a blunt instrument. The method and the application of the release agent not only improve the production efficiency of the ferroalloy, but also greatly save the labor intensity of personnel in the original production process, provide powerful support for the continuous production operation of high-capacity and continuous ferroalloy production enterprises, and solve the key bottleneck problem in the ingot mold demolding process in the ferroalloy production process, thereby promoting the ferroalloy production industry in China to further advance to automatic production.
Further, the high-efficiency ferrosilicon ingot mold release agent has the sodium-containing alkali which is sodium hydroxide, and the sodium hydroxide has the best using effect in practical use, but other sodium-containing compounds can also realize the function, such as sodium bicarbonate and other sodium-containing compounds.
Further, a high-efficient ferrosilicon alloy ingot mould release agent, the weight component proportion in the ferrosilicon alloy ingot mould release agent is: sodium hydroxide: silicon micropowder: water in the range of 0.05-0.3: 0.05-0.3: 1.
further, a silicon iron alloy ingot mold demoulding method, the high-efficiency silicon iron alloy ingot mold demoulding agent is characterized in that the demoulding method of the demoulding agent in actual use is as follows:
(1) firstly, adding quantitative clear water into a release agent preparation tank, then weighing a certain amount of sodium hydroxide and a certain amount of silicon micropowder, adding the weighed sodium hydroxide and silicon micropowder into the release agent preparation tank, and then stirring the mixed solution to fully mix the sodium hydroxide, the silicon micropowder and the water;
(2) taking a certain amount of mixed release agent reagent, putting the release agent into a spray coating device, starting spraying, and spraying on the surface of the ferrosilicon alloy ingot mold to form a release agent layer with the thickness of 0.1-5 mm;
(3) spraying a release agent on the ingot mould, heating and drying the release agent, solidifying the release agent and forming a layer of film on the surface of the release agent, pouring the smelted molten iron on the ingot mould, and quickly hardening and solidifying the release agent on the surface of the ingot mould by the heat of the ferrosilicon alloy ingot mould to form a layer of gel on the surface of the ingot mould;
(4) and naturally cooling the molten iron in the ingot mould, and tapping the cooled surface of the ferroalloy by using a blunt instrument to separate the ferroalloy from the ingot mould.
In summary, the following beneficial effects of the invention are:
1. according to the high-efficiency silicon-iron alloy ingot mold release agent, the release agent is sprayed on the surface of the silicon-iron alloy ingot mold, so that when molten iron after smelting is poured on the ingot mold, the release agent on the surface of the ingot mold can be quickly hardened and solidified by the heat of the silicon-iron alloy ingot mold (200 plus 300 ℃), a layer of gel is formed on the surface of the ingot mold, direct contact between the molten iron and the ingot mold is prevented, and the cooled iron alloy can be easily separated from the ingot mold after the molten iron is cooled and solidified.
2. According to the high-efficiency ferrosilicon alloy ingot mold release agent, the ingot mold can be effectively separated from ferrosilicon by the ingot mold release method, the number of personnel participating in mold release on site and the labor intensity of demolding personnel can be greatly reduced in the actual operation process, and the actual demolding time is reduced, so that the ferrosilicon production is more continuous and automatic.
3. The high-efficiency ferrosilicon alloy ingot mold release agent has a simple formula, is convenient to prepare, effectively utilizes the solid waste silicon micro powder generated in the ferrosilicon production process as a raw material to prepare the release agent, basically has no cost increase on the ferrosilicon production, and has a good actual use effect.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not used as limitations of the present invention.
Examples
The utility model provides a high-efficient ferrosilicon alloy ingot mould release agent which characterized in that, ferrosilicon alloy ingot mould release agent includes following component: sodium-containing compound, silica powder and water, wherein the sodium-containing compound and the silica powder can generate sodium silicate under the condition of heating in aqueous solution, the sodium-containing alkali is sodium hydroxide, and the weight component proportion in the ferrosilicon ingot mold release agent is as follows: sodium hydroxide: silicon micropowder: water in the range of 0.05-0.3: 0.05-0.3: 1, the high-efficiency silicon-iron alloy ingot mold release agent is characterized in that the release agent is prepared by the following release method in actual use: firstly, adding quantitative clear water into a release agent preparation tank, then weighing a certain amount of sodium hydroxide and a certain amount of silicon micropowder, adding the weighed sodium hydroxide and silicon micropowder into the release agent preparation tank, and then stirring the mixed solution to fully mix the sodium hydroxide, the silicon micropowder and the water; taking a certain amount of mixed release agent reagent, putting the release agent into a spray coating device, starting spraying, and spraying on the surface of the ferrosilicon alloy ingot mold to form a release agent layer with the thickness of 0.1-5 mm; spraying a release agent on the ingot mould, heating and drying the release agent, solidifying the release agent and forming a layer of film on the surface of the release agent, pouring the smelted molten iron on the ingot mould, and quickly hardening and solidifying the release agent on the surface of the ingot mould by the heat of the ferrosilicon alloy ingot mould to form a layer of gel on the surface of the ingot mould; and naturally cooling the molten iron in the ingot mould, and tapping the cooled surface of the ferroalloy by using a blunt instrument to separate the ferroalloy from the ingot mould.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (2)
1. The utility model provides a high-efficient ferrosilicon alloy ingot mould release agent which characterized in that, ferrosilicon alloy ingot mould release agent includes following component: the silicon-iron alloy ingot mold release agent comprises a sodium-containing compound, silicon micropowder and water, wherein the sodium-containing compound and the silicon micropowder can generate sodium silicate under the condition of heating in an aqueous solution, the sodium-containing compound is sodium hydroxide, and the silicon-iron alloy ingot mold release agent comprises the following components in parts by weight: sodium hydroxide: silicon micropowder: water in the range of 0.05-0.3: 0.05-0.3: 1.
2. a silicon-iron alloy ingot mold stripping method, based on the high-efficiency silicon-iron alloy ingot mold stripping agent in claim 1, characterized in that the stripping method of the stripping agent in actual use is as follows:
(1) firstly, adding quantitative clear water into a release agent preparation tank, then weighing a certain amount of sodium hydroxide and a certain amount of silicon micropowder, adding the weighed sodium hydroxide and silicon micropowder into the release agent preparation tank, and then stirring the mixed solution to fully mix the sodium hydroxide, the silicon micropowder and the water;
(2) taking a certain amount of mixed release agent reagent, putting the release agent into a spray coating device, starting spraying, and spraying on the surface of the ferrosilicon alloy ingot mold to form a release agent layer with the thickness of 0.1-5 mm;
(3) spraying a release agent on the ingot mould, heating and drying the release agent, solidifying the release agent and forming a layer of film on the surface of the release agent, pouring the smelted molten iron on the ingot mould, and quickly hardening and solidifying the release agent on the surface of the ingot mould by the heat of the ferrosilicon alloy ingot mould to form a layer of gel on the surface of the ingot mould;
(4) and naturally cooling the molten iron in the ingot mould, and tapping the cooled surface of the ferroalloy by using a blunt instrument to separate the ferroalloy from the ingot mould.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62168637A (en) * | 1986-01-20 | 1987-07-24 | Kao Corp | Parting material for production of casting mold |
| CN102266930A (en) * | 2011-04-26 | 2011-12-07 | 江苏标新久保田工业有限公司 | Baffle device for sealing molten steel and fabrication method thereof as well as die applying the baffle device |
| CN104759578A (en) * | 2015-04-16 | 2015-07-08 | 西南大学 | Releasing agent and application method thereof |
| CN105817572A (en) * | 2016-05-27 | 2016-08-03 | 马鞍山市兴隆铸造有限公司 | Anti-crack modified quartz-based mica powder full mold paint and preparation method thereof |
| CN105817573A (en) * | 2016-05-27 | 2016-08-03 | 马鞍山市兴隆铸造有限公司 | Modified quartz-based mica powder full mold paint containing carbon fibers and preparation method of modified quartz-based mica powder full mold paint containing carbon fibers |
| CN107030253A (en) * | 2017-06-22 | 2017-08-11 | 安徽银力铸造有限公司 | A kind of preparation method of high-performance water base casting coatings |
-
2019
- 2019-02-01 CN CN201910101869.8A patent/CN109702141B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62168637A (en) * | 1986-01-20 | 1987-07-24 | Kao Corp | Parting material for production of casting mold |
| CN102266930A (en) * | 2011-04-26 | 2011-12-07 | 江苏标新久保田工业有限公司 | Baffle device for sealing molten steel and fabrication method thereof as well as die applying the baffle device |
| CN104759578A (en) * | 2015-04-16 | 2015-07-08 | 西南大学 | Releasing agent and application method thereof |
| CN105817572A (en) * | 2016-05-27 | 2016-08-03 | 马鞍山市兴隆铸造有限公司 | Anti-crack modified quartz-based mica powder full mold paint and preparation method thereof |
| CN105817573A (en) * | 2016-05-27 | 2016-08-03 | 马鞍山市兴隆铸造有限公司 | Modified quartz-based mica powder full mold paint containing carbon fibers and preparation method of modified quartz-based mica powder full mold paint containing carbon fibers |
| CN107030253A (en) * | 2017-06-22 | 2017-08-11 | 安徽银力铸造有限公司 | A kind of preparation method of high-performance water base casting coatings |
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