CN105170891A - High-aluminum blast furnace slag-coal ash lost foam casting paint and preparation method thereof - Google Patents
High-aluminum blast furnace slag-coal ash lost foam casting paint and preparation method thereof Download PDFInfo
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- CN105170891A CN105170891A CN201510620135.2A CN201510620135A CN105170891A CN 105170891 A CN105170891 A CN 105170891A CN 201510620135 A CN201510620135 A CN 201510620135A CN 105170891 A CN105170891 A CN 105170891A
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Abstract
Lost foam casting paint which is excellent in use performance and low in production cost is prepared from high-aluminum blast furnace slag, coal ash, magnesia, sodium bentonite, silicon carbide, magnesium fluosilicate, talcum powder, zinc borate, expanded perlite, calaium strarate, water glass, gamma-amido propyl triethoxysilane, bi(pyrophosphoric acid dioctyl phthalate) ethylene titanate, poly-hydroxyethyl methacrylate, glycidyl methacrylate, polypropylene glycol diglycidyl ether, isopropyl myristate, acrylonitrile fibers, sodium potassium tartrate tetrahydrate, sodium abietate, alcohol and water. The lost foam casting paint which is excellent in using performance and low in production cost is prepared, and the purposes of comprehensively recycling the high-aluminum blast furnace slag and the coal ash and reducing production cost are achieved.
Description
Technical field
The invention belongs to lost foam casting coating field, particularly relate to a kind of high alumina blast furnace slag-flyash lost foam casting coating and preparation method thereof.
Background technology
Technology of EPC is a kind of casting technique emerging in casting industry, lost foam casting process refers to and to be made into and required cast shape structure, the identical apperance of size with foamed plastics (EPS, ETMMA or EPMMA), brushing fireproof coating post-drying, imbed moulding in special sandbox dry sand (generally using quartz sand), pour into a mould under the certain negative pressure state of maintenance, apperance is by thermal evaporation decomposition, and molten metal constantly occupies final molding after modal position.Lost foam casting is mainly called dry sand cavityless casting, vacuum full mold casting at home, and the external EPC of abbreviation casts.
Lost foam casting process the most ripe is at present the batch production for automobile casting, and the product produced has aluminium alloy castings (as air inlet pipe, gray iron etc.) and ironcasting (as bent axle, cylinder cap, case of transmission, blast pipe etc.).Practice at home and abroad proves, lost foam casting has huge development potentiality in production automobile casting.Current, the automobile work of China is in developing period, estimates that automobile casting output has increase by a relatively large margin within from now on period, simultaneously will be stricter to the requirement of automobile casting quality.The development of auto industry, for China's casting industry brings opportunities and challenges, also brings new opportunity for promoting in China and developing Technology of EPC.
Lost foam casting is for producing success or not in enormous quantities, and 50% depends on apperance, and 30% depends on coating, and 20% depends on other technological factor.Undoubtedly, coating obtains the requisite process procedure of premium casting, and research and production confirm all, and for lost foam casting process, coating can make its potentiality succeeded greatly increase.Abroad to the research starting comparatively morning of lost foam casting coating, oneself is through there being the coating of some commodity, but price is partially expensive, causes production cost to improve, and limits the development of lost foam casting process to a certain extent.At present, existing Duo Jia colleges and universities of China and research unit carry out the research and development of the links such as model material, moulding process, coating technology, tooling device for lost foam casting, obtain certain achievement, such as, but still have larger gap compared with abroad, the commercialized degree of coating is very poor.Therefore, for promoting applying of this advanced manufacturing technology of lost foam casting, in conjunction with Domestic Resources situation, start with from each constituent species and the impact of addition on coating property of studying coating, the cost of the applicable China's national situation of development is low, the measured lost foam casting coating of matter, and the production domesticization realizing lost foam casting coating is very important.
The refuse of discharging from blast furnace when blast furnace slag is manUfaCtUre of pig iron, when furnace temperature reaches 1400-1600 DEG C, furnace charge melting, the gangue in ore, the ash content in coke and cosolvent and other impurity that can not enter in the pig iron form the slag floated over above molten iron for master with silicate and aluminate.In blast furnace slag, main component is CaO, SiO2, Al2O3.A kind of industrial solid wastes of blast furnace slag, the slag of discharging in blast furnace ironmaking process, also known as blast-furnace cinder, can be divided into conversion pig slag, foundry iron slag, ferromanganese ore slag etc., China is again the limited country of a per capita resource reserve, the comprehensive utilization of blast furnace slag, turn waste into wealth, turn bane into boon, having become in China's economic construction an important techno-economic policy, is solve environmental pollution, the important means of contradiction between resource shortage.
Flyash, be receive to catch the thin ash got off from the flue gas after coal combustion, flyash is the primary solids refuse that coal-burning power plant discharges.The main oxides of power plants flyash consists of: SiO2, Al2O3, FeO, Fe2O3, CaO, TiO2 etc.Flyash is the industrial residue one that the current discharge capacity of China is larger, and along with the development of power industry, the flyash discharge capacity of coal-burning power plant increases year by year.A large amount of flyash does not add process, will produce airborne dust, atmosphere pollution; River can be caused to silt up if enter water system, and toxic chemical substance wherein also can work the mischief to human body and biology.Shi Ge big coal country of China take coal as the basic fuel of power generation.The energy industry stable development of China, generating capacity annual growth is 7.3%, developing rapidly of power industry, bring the sharply increase of flyash discharge capacity, annual the discharged flyash total amount of Hazards in Power Plant increases year by year, nineteen ninety-five flyash discharge capacity reach 1.25 hundred million tons, within 2000, be about 1.5 hundred million tons, 300,000,000 tons will be reached by 2010, cause huge pressure to the development of the national economy of China and ecological environment.On the other hand, China is again the limited country of a per capita resource reserve, the comprehensive utilization of flyash, turn waste into wealth, turn bane into boon, to become in China's economic construction an important techno-economic policy, solve China power generation environmental pollution, the important means of contradiction between resource shortage, be also power generation one of the task of facing solution.
Summary of the invention
The object of this invention is to provide one and can overcome above-mentioned defect, utilize high alumina blast furnace slag-flyash production and application function admirable, lost foam casting coating that production cost is low, to reach comprehensive reutilization high alumina blast furnace slag, flyash reduce the object of producing lost foam casting coating cost.
For achieving the above object, the present invention adopts following technical scheme:
A kind of high alumina blast furnace slag-flyash lost foam casting coating, it is characterized in that, described lost foam casting coating is made up of the raw material of following weight portion:
High alumina blast furnace slag 30-34 part
Flyash 28-32 part
Magnesia 12-15 part
Sodium bentonite 7-10 part
Carborundum 6-8 part
Magnesium fluosilicate 2 ~ 6 parts
Talcum powder 2-5 part
Firebrake ZB 2-4 part
Expanded perlite 2 ~ 4 parts
Calcium stearate 2 ~ 3 parts
Waterglass 2 ~ 3 parts
γ-aminocarbonyl propyl triethoxysilane 4-6 part
Two (dioctyl pyrophosphate) ethylene titanate esters 6-8 part
Poly hydroxy ethyl acrylate 2-4 part
GMA 0.3-0.6 part
Polypropylene glycol diglycidyl ether 0.4-0.6 part
Isopropyl myristate 0.3-0.6 part
Dralon 2 ~ 3 parts
Sodium potassium tartrate tetrahydrate 1 ~ 3 part
Sodium abietate 2 ~ 3 parts
Ethanol 20-25 part
Water 6-13 part;
The main chemical compositions of described high alumina blast furnace slag is Al
2o
318.41wt%, MgO13.2wt%, CaO34.12wt%, SiO
233.12wt%, MnO0.53wt%, FeO0.62wt%;
The main chemical compositions of described flyash is flyash: SiO
249.65wt%, Al
2o
328.92wt%, Fe
2o
311.34wt%, CaO2.21wt%, MgO0.45wt%, SO
30.31wt%, K
2o2.21wt%, Ti
2o1.12wt%;
Content of magnesia >=95wt% in described magnesia.
The preparation method of described high alumina blast furnace slag-flyash lost foam casting coating, is characterized in that, comprise the following steps:
1) 30-34 part high alumina blast furnace slag, 28-32 part flyash, 12-15 part magnesia, 7-10 part sodium bentonite, 6-8 part carborundum, 2 ~ 6 parts of magnesium fluosilicates, 2 ~ 5 parts of talcum powder, 2 ~ 4 parts of Firebrake ZBs, 2 ~ 4 parts of expanded perlites, 2 ~ 3 parts of calcium stearates, 2 ~ 3 parts of waterglass are put into ball mill ball milling 2 hours, mix, then sieve, obtain the mixed material of below 200 orders;
2) reactor is opened, 4-6 part γ-aminocarbonyl propyl triethoxysilane, 6-8 part two (dioctyl pyrophosphate) ethylene titanate esters, 20-25 part ethanol, 6-13 part water are joined in reactor, under agitation be hydrolyzed reaction, rotating speed is 1200r/min, reaction temperature is 80 DEG C, mixing time is 30min, obtains the alcohol solution of coupling agent;
3) step 1) gained mixed material material is joined step 2) in coupling agent alcohol solution in, at 80 DEG C stir 2 hours; And then 2-4 part poly hydroxy ethyl acrylate, 0.3-0.6 part GMA, 0.4-0.6 part polypropylene glycol diglycidyl ether, 0.3-0.6 part isopropyl myristate, 2 ~ 3 parts of Dralons, 1 ~ 3 part of sodium potassium tartrate tetrahydrate, 2 ~ 3 parts of sodium abietates are joined in reactor, continue to stir 30min, i.e. obtained high alumina blast furnace slag-flyash lost foam casting coating.
Compared with prior art, its advantage is in the present invention:
1) make use of the industrial solid castoffs such as high alumina blast furnace slag, flyash and prepare lost foam casting coating preparing in coating process, greatly reduce the manufacturing cost of refractory material;
2) and by γ-aminocarbonyl propyl triethoxysilane and two (dioctyl pyrophosphate) ethylene titanate esters, surface modification treatment has been carried out to high alumina blast furnace slag, flyash, magnesia, sodium bentonite, carborundum, magnesium fluosilicate talcum powder, Firebrake ZB, expanded perlite, calcium stearate, waterglass, improve caking property and the dispersiveness of material and base-material, at high temperature structure is more stable to make lost foam casting coating, substantially increases lost foam casting coating fire endurance.
Detailed description of the invention
Embodiment 1
A kind of high alumina blast furnace slag-flyash lost foam casting coating, it is characterized in that, described lost foam casting coating is made up of the raw material of following weight portion:
High alumina blast furnace slag 30 parts
28 parts, flyash
12 parts, magnesia
Sodium bentonite 7 parts
6 parts, carborundum
Magnesium fluosilicate 2 parts
Talcum powder 2 parts
Firebrake ZB 2 parts
Expanded perlite 2 parts
Calcium stearate 2 parts
Waterglass 2 parts
γ-aminocarbonyl propyl triethoxysilane 4 parts
Two (dioctyl pyrophosphate) ethylene titanate esters 6 parts
Poly hydroxy ethyl acrylate 2 parts
GMA 0.3 part
Polypropylene glycol diglycidyl ether 0.4 part
Isopropyl myristate 0.3 part
Dralon 2 parts
Sodium potassium tartrate tetrahydrate 1 part
Sodium abietate 2 parts
Ethanol 20 parts
6 parts, water;
The preparation method of described high alumina blast furnace slag-flyash lost foam casting coating, comprises the following steps:
1) 30 parts of high alumina blast furnace slags, 28 parts of flyash, 12 parts of magnesia, 7 parts of sodium bentonites, 6 parts of carborundum, 2 parts of magnesium fluosilicates, 2 parts of talcum powder, 2 parts of Firebrake ZBs, 2 parts of expanded perlites, 2 parts of calcium stearates, 2 parts of waterglass are put into ball mill ball milling 2 hours, mix, then sieve, obtain the mixed material of below 200 orders;
2) reactor is opened, 4 parts of γ-aminocarbonyl propyl triethoxysilane, 6 part of two (dioctyl pyrophosphate) ethylene titanate esters, 20 parts of ethanol, 6 parts of water are joined in reactor, under agitation be hydrolyzed reaction, rotating speed is 1200r/min, reaction temperature is 80 DEG C, mixing time is 30min, obtains the alcohol solution of coupling agent;
3) step 1) gained mixed material material is joined step 2) in coupling agent alcohol solution in, at 80 DEG C stir 2 hours; And then 2 parts of poly hydroxy ethyl acrylates, 0.3 part of GMA, 0.4 part of polypropylene glycol diglycidyl ether, 0.3 part of isopropyl myristate, 2 parts of Dralons, 1 part of sodium potassium tartrate tetrahydrate, 2 parts of sodium abietates are joined in reactor, continue to stir 30min, i.e. obtained high alumina blast furnace slag-flyash lost foam casting coating.
Embodiment 2
A kind of high alumina blast furnace slag-flyash lost foam casting coating, it is characterized in that, described lost foam casting coating is made up of the raw material of following weight portion:
High alumina blast furnace slag 34 parts
32 parts, flyash
15 parts, magnesia
Sodium bentonite 10 parts
8 parts, carborundum
Magnesium fluosilicate 6 parts
Talcum powder 5 parts
Firebrake ZB 4 parts
Expanded perlite 4 parts
Calcium stearate 3 parts
Waterglass 3 parts
γ-aminocarbonyl propyl triethoxysilane 6 parts
Two (dioctyl pyrophosphate) ethylene titanate esters 8 parts
Poly hydroxy ethyl acrylate 4 parts
GMA 0.6 part
Polypropylene glycol diglycidyl ether 0.6 part
Isopropyl myristate 0.6 part
Dralon 3 parts
Sodium potassium tartrate tetrahydrate 3 parts
Sodium abietate 3 parts
Ethanol 25 parts
13 parts, water;
The preparation method of described high alumina blast furnace slag-flyash lost foam casting coating, comprises the following steps:
1) 34 parts of high alumina blast furnace slags, 32 parts of flyash, 15 parts of magnesia, 10 parts of sodium bentonites, 8 parts of carborundum, 6 parts of magnesium fluosilicates, 5 parts of talcum powder, 4 parts of Firebrake ZBs, 4 parts of expanded perlites, 3 parts of calcium stearates, 3 parts of waterglass are put into ball mill ball milling 2 hours, mix, then sieve, obtain the mixed material of below 200 orders;
2) reactor is opened, 6 parts of γ-aminocarbonyl propyl triethoxysilane, 8 part of two (dioctyl pyrophosphate) ethylene titanate esters, 25 parts of ethanol, 13 parts of water are joined in reactor, under agitation be hydrolyzed reaction, rotating speed is 1200r/min, reaction temperature is 80 DEG C, mixing time is 30min, obtains the alcohol solution of coupling agent;
3) step 1) gained mixed material material is joined step 2) in coupling agent alcohol solution in, at 80 DEG C stir 2 hours; And then 4 parts of poly hydroxy ethyl acrylates, 0.6 part of GMA, 0.6 part of polypropylene glycol diglycidyl ether, 0.6 part of isopropyl myristate, 3 parts of Dralons, 3 parts of sodium potassium tartrate tetrahydrates, 3 parts of sodium abietates are joined in reactor, continue to stir 30min, i.e. obtained high alumina blast furnace slag-flyash lost foam casting coating.
Claims (3)
1. high alumina blast furnace slag-flyash lost foam casting coating, is characterized in that, described lost foam casting coating is made up of the raw material of following weight portion:
High alumina blast furnace slag 30-34 part
Flyash 28-32 part
Magnesia 12-15 part
Sodium bentonite 7-10 part
Carborundum 6-8 part
Magnesium fluosilicate 2 ~ 6 parts
Talcum powder 2-5 part
Firebrake ZB 2-4 part
Expanded perlite 2 ~ 4 parts
Calcium stearate 2 ~ 3 parts
Waterglass 2 ~ 3 parts
γ-aminocarbonyl propyl triethoxysilane 4-6 part
Two (dioctyl pyrophosphate) ethylene titanate esters 6-8 part
Poly hydroxy ethyl acrylate 2-4 part
GMA 0.3-0.6 part
Polypropylene glycol diglycidyl ether 0.4-0.6 part
Isopropyl myristate 0.3-0.6 part
Dralon 2 ~ 3 parts
Sodium potassium tartrate tetrahydrate 1 ~ 3 part
Sodium abietate 2 ~ 3 parts
Ethanol 20-25 part
Water 6-13 part.
2. lost foam casting coating as described in claim 1, is characterized in that:
The main chemical compositions of described high alumina blast furnace slag is Al
2o
318.41wt%, MgO13.2wt%, CaO34.12wt%, SiO
233.12wt%, MnO0.53wt%, FeO0.62wt%;
The main chemical compositions of described flyash is flyash: SiO
249.65wt%, Al
2o
328.92wt%, Fe
2o
311.34wt%, CaO2.21wt%, MgO0.45wt%, SO
30.31wt%, K
2o2.21wt%, Ti
2o1.12wt%;
Content of magnesia >=95wt% in described magnesia.
3. the preparation method of high alumina blast furnace slag-flyash lost foam casting coating according to claim 1 and 2, is characterized in that, comprise the following steps:
1) 30-34 part high alumina blast furnace slag, 28-32 part flyash, 12-15 part magnesia, 7-10 part sodium bentonite, 6-8 part carborundum, 2 ~ 6 parts of magnesium fluosilicates, 2 ~ 5 parts of talcum powder, 2 ~ 4 parts of Firebrake ZBs, 2 ~ 4 parts of expanded perlites, 2 ~ 3 parts of calcium stearates, 2 ~ 3 parts of waterglass are put into ball mill ball milling 2 hours, mix, then sieve, obtain the mixed material of below 200 orders;
2) reactor is opened, 4-6 part γ-aminocarbonyl propyl triethoxysilane, 6-8 part two (dioctyl pyrophosphate) ethylene titanate esters, 20-25 part ethanol, 6-13 part water are joined in reactor, under agitation be hydrolyzed reaction, rotating speed is 1200r/min, reaction temperature is 80 DEG C, mixing time is 30min, obtains the alcohol solution of coupling agent;
3) step 1) gained mixed material material is joined step 2) in coupling agent alcohol solution in, at 80 DEG C stir 2 hours; And then 2-4 part poly hydroxy ethyl acrylate, 0.3-0.6 part GMA, 0.4-0.6 part polypropylene glycol diglycidyl ether, 0.3-0.6 part isopropyl myristate, 2 ~ 3 parts of Dralons, 1 ~ 3 part of sodium potassium tartrate tetrahydrate, 2 ~ 3 parts of sodium abietates are joined in reactor, continue to stir 30min, i.e. obtained high alumina blast furnace slag-flyash lost foam casting coating.
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| CN201510620135.2A CN105170891A (en) | 2015-09-25 | 2015-09-25 | High-aluminum blast furnace slag-coal ash lost foam casting paint and preparation method thereof |
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|---|---|---|---|
| CN201510620135.2A CN105170891A (en) | 2015-09-25 | 2015-09-25 | High-aluminum blast furnace slag-coal ash lost foam casting paint and preparation method thereof |
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|---|---|
| CN105170891A true CN105170891A (en) | 2015-12-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728640A (en) * | 2016-04-27 | 2016-07-06 | 霍邱县鑫瑞金属制品有限责任公司 | High-strength and high-toughness water-based lost foam coating for magnesium alloy casting and preparation method thereof |
| CN106391995A (en) * | 2016-04-27 | 2017-02-15 | 霍邱县鑫瑞金属制品有限责任公司 | High-thermal stability water-based EPC paint for magnesium alloy casting and preparation method thereof |
| CN106391994A (en) * | 2016-04-27 | 2017-02-15 | 霍邱县鑫瑞金属制品有限责任公司 | High-bonding force water-based EPC paint for magnesium alloy casting and preparation method thereof |
-
2015
- 2015-09-25 CN CN201510620135.2A patent/CN105170891A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728640A (en) * | 2016-04-27 | 2016-07-06 | 霍邱县鑫瑞金属制品有限责任公司 | High-strength and high-toughness water-based lost foam coating for magnesium alloy casting and preparation method thereof |
| CN106391995A (en) * | 2016-04-27 | 2017-02-15 | 霍邱县鑫瑞金属制品有限责任公司 | High-thermal stability water-based EPC paint for magnesium alloy casting and preparation method thereof |
| CN106391994A (en) * | 2016-04-27 | 2017-02-15 | 霍邱县鑫瑞金属制品有限责任公司 | High-bonding force water-based EPC paint for magnesium alloy casting and preparation method thereof |
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Application publication date: 20151223 |