CN105036776B - A kind of foundry ladle castable and preparation method thereof - Google Patents
A kind of foundry ladle castable and preparation method thereof Download PDFInfo
- Publication number
- CN105036776B CN105036776B CN201510516636.6A CN201510516636A CN105036776B CN 105036776 B CN105036776 B CN 105036776B CN 201510516636 A CN201510516636 A CN 201510516636A CN 105036776 B CN105036776 B CN 105036776B
- Authority
- CN
- China
- Prior art keywords
- particle diameter
- alumine
- castable
- mesh
- raw materials
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Mold Materials And Core Materials (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses a kind of foundry ladle castable and preparation method thereof, described castable is that the alumine fine powder of 200 mesh, particle diameter≤0.02um fine silica powder, particle diameter are the carbide fine powder and cement of 500 ~ 700 mesh by alumine aggregate, particle diameter that particle diameter is 0 ~ 25mm, and accounts for sodium polyphosphate that above-mentioned raw materials total amount be 0.02 ~ 1% and account for the explosion-proof fiber that above-mentioned raw materials total amount is 0.01 ~ 1% and be formulated.Castable prepared by the present invention recycles carborundum recovery powder caused by grinding tool Abrasive Industry, reduce environmental pollution, reduce the cost of raw material, and its coefficient safe to use is high, the pretreatment of KR methods molten iron wraps service life more than 800 times more than 100 tons, realizes the purpose that safety, low cost and material recovery recycle.
Description
Technical field
The invention belongs to castable technical field, is related to one kind and contains carborundum recovery for large-scale pretreatment ladle
A kind of castable of thing, and in particular to foundry ladle castable and preparation method thereof.
Background technology
In order to improve the quality of steel, improve the working condition of converter, so as to reduce STEELMAKING PRODUCTION cost, improve productivity ratio.
Iron and steel enterprise is all carrying out " three is de- " processing, wherein mechanical mixing method using hot metal pretreatment technology to molten iron both at home and abroad at present
（KR）It is to carry out most representative, most effective way in " three is de- " processing that cooperative mechanical arm, which is skimmed,.Mechanical mixing method（KR）Make
What molten iron seething in iron bag had to the brick ladle of tradition washes away, corrodes strongly, course brickwork joint is progressively increased, easily
Cause to wear bag accident.And the slagging of bag mouth need to use quartering hammer to carry out scarfing cinder processing, powerful mechanical shock in use
Power is even more to cause the loosening of brick layer, come off and damage whole ladle, causes to waste.Brick ladle is from refractory material enterprise
Building by laying bricks or stones in iron and steel enterprise's use is fabricated into, the proportion manually put into production, constructed is very big, and production efficiency is low, and cost is high.
Especially Large Fe bag is built by laying bricks or stones, with refractory brick quantity is big, to build the number of plies by laying bricks or stones more, it is high to worker's masonry technology skill requirement, according to
Lai Xingqiang, hand labor intensity is big, is unfavorable for mechanized construction, and cannot ensure the uniformity built by laying bricks or stones.Built by laying bricks or stones not if any one piece
Very likely cause overall using effect bad in place, cause serious leakage accident.
At present, aluminium-carbon, the refractory brick based on aluminium-silicon carbide-carbon are widely used in large-scale preprocessed molten iron and wrapped.
High-purity contained therein, brand-new carborundum are the products of highly energy-consuming, high pollution.Price is high to cause refractory material to be produced into
This rise.Brick bag globality poor, in more in molten iron slag and sticky larger working environment, during mechanical deslagging easily
Cause fragment of brick is broken to come off, causing local particularly iron bag mouth to need again overhaul or overall masonry to scrap causes in cost
Rise, produce the appearance of the serious problems such as nervous, labor strength increase.Grinding tool Abrasive Industry largely uses high-grade carborundum
During as Raw material processing product, output a big chunk superfine silicon carbide waste material, itself can not be recycled, and not only cause environment
Pollution, while cause the waste of natural material.
The content of the invention
It is an object of the invention to provide a kind of foundry ladle castable.The castable is in grinding tool Abrasive Industry with carborundum
The carborundum of recycling, reduce environmental pollution, reduce production cost；Used with the large-scale preprocessed molten iron bag of this material cast
Castable has easily construction, good integrity, and medium and high temperature strength is high, and resistance to mechanical impact, resistance molten iron, slag corrosion power are strong.
It is a further object of the present invention to provide a kind of preparation method of foundry ladle castable.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of foundry ladle castable, the percentage by weight that the castable contains material composition are：
Particle diameter is 5 ~ 10mm alumine 18 ~ 25%,
Particle diameter is 3 ~ 5mm alumine 15 ~ 20%,
Particle diameter is 1 ~ 3mm alumine 13 ~ 18%,
Particle diameter is 0 ~ 1mm alumine 10 ~ 15%,
Particle diameter is the alumine 15 ~ 20% of 200 mesh,
Particle diameter≤0.02um fine silica powder 3 ~ 6%,
Carbide fine powder 5 ~ 8%,
Cement 3 ~ 7%,
The additional sodium polyphosphate for accounting for above-mentioned raw materials total amount 0.06 ~ 0.15% and account for the anti-of above-mentioned raw materials total amount 0.05 ~ 0.1%
Quick-fried fiber.
Described foundry ladle castable, the particle diameter is 5 ~ 10mm, particle diameter is 3 ~ 5mm, particle diameter is 1 ~ 3mm, particle diameter 0
~ 1mm, particle diameter are Al in the alumine of 200 mesh2O3Percentage by weight be 85 ~ 88%.
A kind of foundry ladle castable, the percentage by weight that the castable contains material composition are：
Particle diameter is 10 ~ 25mm alumine 10 ~ 16%,
Particle diameter is 5 ~ 10mm alumines 17 ~ 20%,
Particle diameter is 3 ~ 5mm alumines 15 ~ 18%,
Particle diameter is 1 ~ 3mm alumine 10 ~ 15%,
Particle diameter is 0 ~ 1mm alumine 10 ~ 14%,
Particle diameter is the alumine 11 ~ 14% of 200 mesh,
Particle diameter≤0.02um fine silica powder 3 ~ 6%,
Carbide fine powder 5 ~ 10%,
Cement 5 ~ 8%,
It is additional, account for the sodium polyphosphate of above-mentioned raw materials total amount 0.07 ~ 0.16% and account for above-mentioned raw materials total amount 0.05 ~ 0.1%
Explosion-proof fiber.
Described foundry ladle castable, the particle diameter is 10 ~ 25mm, particle diameter is 5 ~ 10mm, particle diameter is 3 ~ 5mm, particle diameter
For Al in 1 ~ 3mm, particle diameter are 0 ~ 1mm, particle diameter is 200 mesh alumine2O3Percentage by weight be 80 ~ 88%.
Described foundry ladle castable, the particle diameter is 10 ~ 25mm, particle diameter is 5 ~ 10mm, particle diameter is 3 ~ 5mm, particle diameter
For 1 ~ 3mm, the alumine Al that particle diameter is 0 ~ 1mm2O3Percentage by weight be 80 ~ 85%；The particle diameter is the high alumina alum of 200 mesh
Al in soil2O3Percentage by weight be 85 ~ 88%.
Described foundry ladle castable, described carbide fine powder be grinding tool Abrasive Industry processing scrap concrete again
With carborundum particle diameter is 500 ~ 700 mesh, hardness is Mohs 9.0, proportion 3.2g/cm3.Take discarded object to analyze its carborundum to contain
Amount, the discarded object containing not same amount carborundum, which is mixed, makes carborundum content be 70 ~ 90%, for producing above-mentioned castable.
Described foundry ladle castable, the cement are match 71 cement of card or 925 cement；Described sodium polyphosphate is
The mixture of sodium tripolyphosphate and calgon；Described explosion-proof fiber is the mixed of polypropylene explosion-proof fiber and water-soluble fibre
Compound.
Described foundry ladle castable, the softening point of described polypropylene explosion-proof fiber is 120 ± 10 DEG C, described
Dissolving for water-soluble fibre is a little 80 ± 10 DEG C.
A kind of method for preparing foundry ladle castable described above, preparation process are as follows：
（1）All material is inserted into mixer by above-described any proportioning（Forced mixer）It is interior, dry-mixed 3 ~ 6
Minute, the water for accounting for above-mentioned raw materials gross weight 5 ~ 8% is then added, is stirred；
（2）By step（1）In the mould for the preparation ladle that the castable injection to stir has been set, Bian Jia
Expect side vibration, castable is uniformly filled whole iron bag, add untill expecting to be vibrated to bubble-free discharge again, 6 ~ 8 are stood under normal temperature
It is stripped after hour；
（3）By step（2）Castable after the described demoulding, using roaster, started to warm up in 55 ~ 76h by room temperature
It is baked to 900 ~ 1100 DEG C, you can use.
The described method for preparing foundry ladle castable, described heating baking are：Castable will be stripped with 20 ~ 25
DEG C/h heating rate rises to 200 DEG C from room temperature, it is incubated 16 ~ 20 hours；Then with 35 ~ 40 DEG C/h heating rate by 200 DEG C
500 DEG C are warming up to, is incubated 12 ~ 16h；Continue to be warming up to 900 ~ 1100 DEG C by 500 DEG C with 60 ~ 70 DEG C/h heating rate, insulation 8
~12h。
Compared with prior art, the present invention has the positive effect that：
（1）The castable of the present invention has recycled the thinner carborundum of fineness caused by the processing of grinding tool Abrasive Industry and returned
Powder is received, reduces environmental pollution, reduces the cost of raw material.The castable produced compared with brick bag is easy to mechanization at the scene
Construction, greatly reduce the labor intensity of worker.
（2）This product coordinates other materials easy-sintering to react to form compacted zone, and intensity is higher, and Linear change rate is lower, has
Good integrity, do not fall off, resistant to corrosion, medium and high temperature strength is high, and resistance to mechanical, high temperature liquid iron impulsive force are strong.
（3）The castable coefficient safe to use of the present invention is high, and KR methods molten iron pre-processes and wraps service life more than 100 tons
More than 800 times；Its service life is more than 2000 times when directly transferring molten iron.It is sharp again to realize safety, low cost and material recovery
Purpose.
（4）This product compares more than 150 yuan/ton of cost of raw material decline with brand-new silicon carbide products are added（Brand-new carbonization
Silicon market price more than 5,000, reclaim 2,000 yuan or so of powder）.The use of charge weight it is 100 tons exemplified by steel to produce 5000000 tons of steel per year is looked forward to
Ladle, use 50,000 heats in year, each bag averagely uses 1000 times.50 iron bags, each bag materials 40 need to be poured into a mould every year
Ton, then annual 2000 tons of materials, save 2000*150 yuan/ton 300,000 yuan, produce 700000000 tons of calculating of steel per year at present with China, drop this effect
Benefit is obviously.
And the castable of the addition recovery carborundum powder of the invention used, compared with adding brand-new carborundum, items are surveyed
Index is not less than the castable for adding brand-new carborundum, as shown in table 1：
Embodiment：
The present invention is 600 purposes using the alumine of different-grain diameter, particle diameter≤0.02um fine silica powder, particle diameter
Carbide fine powder, cement and external feeding sodium polyphosphate, explosion-proof fiber, water prepare molten iron pretreatment ladle, wherein carbon
SiClx is the carborundum recycled in grinding tool Abrasive Industry, and the castable prepared using the reclaimed materials has brand-new carborundum system
The performance that standby castable can reach.Therefore the present invention reduces environmental pollution during preparing castable, reduces production
Cost, and obtained the product of better performances.With reference to specific embodiment, the present invention is described in further detail, but
Do not limit present disclosure.
Embodiment 1
A kind of foundry ladle castable, by weight percentage, it is made up of following raw material：
Particle diameter is 5 ~ 10mm alumine 20%,
Particle diameter is 3 ~ 5mm alumine 20%,
Particle diameter is 1 ~ 3mm alumine 18%,
Particle diameter is 0 ~ 1mm alumine 10%
Particle diameter is the alumine 20% of 200 mesh
Particle diameter≤0.02um fine silica powder 3%
Particle diameter is the carbide fine powder 5% of 500 ~ 700 mesh
Match 71 cement 4% of card
It is additional, account for above-mentioned raw materials total amount be 0.06% sodium tripolyphosphate and calgon mixture, account for above-mentioned raw materials
Polypropylene explosion-proof fiber that the softening point that total amount is 0.03% is 120 ± 10 DEG C and to account for above-mentioned raw materials total amount be 0.02% to dissolve
Point is 80 ± 10 DEG C of water-soluble fibre；
The high alumina alum that particle diameter is 5 ~ 10mm, particle diameter is 3 ~ 5mm, particle diameter is 1 ~ 3mm, particle diameter is 0 ~ 1mm, particle diameter is 200 mesh
Al in soil2O3Percentage by weight be 85%.
Embodiment 2
A kind of foundry ladle castable, by weight percentage, it is made up of following raw material：
Particle diameter is 5 ~ 10mm alumine 18%
Particle diameter is 3 ~ 5mm alumine 20%
Particle diameter is 1 ~ 3mm alumine 15%
Particle diameter is 0 ~ 1mm alumine 14%
Particle diameter is the alumine 19% of 200 mesh
Particle diameter≤0.02um fine silica powder 4%
Particle diameter is the carbide fine powder 5% of 500 ~ 700 mesh
Match 71 cement 5% of card
It is additional, account for sodium tripolyphosphate that above-mentioned raw materials total amount is 0.1% and calgon mixture, to account for above-mentioned raw materials total
Polypropylene explosion-proof fiber that the softening point measured as 0.06% is 120 ± 10 DEG C and to account for above-mentioned raw materials total amount be 0.04% to dissolve a little
For 80 ± 10 DEG C of water-soluble fibre；
The high alumina alum that particle diameter is 5 ~ 10mm, particle diameter is 3 ~ 5mm, particle diameter is 1 ~ 3mm, particle diameter is 0 ~ 1mm, particle diameter is 200 mesh
Al in soil2O3Percentage by weight be 88%.
Embodiment 3
A kind of foundry ladle castable, by weight percentage, it is made up of following raw material：
Particle diameter is 5 ~ 10mm alumine 22%,
Particle diameter is 3 ~ 5mm alumine 18%,
Particle diameter is 1 ~ 3mm alumine 14%,
Particle diameter is 0 ~ 1mm alumine 14%,
Particle diameter is the alumine 15% of 200 mesh,
Particle diameter≤0.02um fine silica powder 4%,
Particle diameter is the carbide fine powder 8% of 500 ~ 700 mesh,
Match 71 cement of card are 5%,
It is additional, account for above-mentioned raw materials total amount be 0.15% sodium tripolyphosphate and calgon mixing, account for above-mentioned raw materials total amount
Polypropylene explosion-proof fiber that softening point for 0.03% is 120 ± 10 DEG C and to account for above-mentioned raw materials total amount be 0.02% to dissolve and be a little
80 ± 10 DEG C of water-soluble fibre；
The high alumina alum that particle diameter is 5 ~ 10mm, particle diameter is 3 ~ 5mm, particle diameter is 1 ~ 3mm, particle diameter is 0 ~ 1mm, particle diameter is 200 mesh
Al in soil2O3Percentage by weight be 86%.
Embodiment 4
A kind of foundry ladle castable, by weight percentage, it is made up of following raw material：
Particle diameter is 5 ~ 10mm alumine 22%,
Particle diameter is 3 ~ 5mm alumine 18%,
Particle diameter is 1 ~ 3mm alumine 14%,
Particle diameter is 0 ~ 1mm alumine 12%,
Particle diameter is the alumine 15% of 200 mesh,
Particle diameter≤0.02um fine silica powder 4%,
Particle diameter is the carbide fine powder 8% of 500 ~ 700 mesh,
925 cement 7%,
It is additional, account for sodium tripolyphosphate that above-mentioned raw materials total amount is 0.15% and calgon mixture, to account for above-mentioned raw materials total
Polypropylene explosion-proof fiber that the softening point measured as 0.03% is 120 ± 10 DEG C and to account for above-mentioned raw materials total amount be 0.02% to dissolve a little
For 80 ± 10 DEG C of water-soluble fibre；
The high alumina alum that particle diameter is 5 ~ 10mm, particle diameter is 3 ~ 5mm, particle diameter is 1 ~ 3mm, particle diameter is 0 ~ 1mm, particle diameter is 200 mesh
Al in soil2O3Percentage by weight be 87%.
Embodiment 5
A kind of foundry ladle castable, by weight percentage, it is made up of following raw material：
Particle diameter is 5 ~ 10mm alumine 25%,
Particle diameter is 3 ~ 5mm alumine 15%,
Particle diameter is 1 ~ 3mm alumine 13%,
Particle diameter is 0 ~ 1mm alumine 15%,
Particle diameter is the alumine 16% of 200 mesh,
Particle diameter≤0.02um fine silica powder 6%,
Particle diameter is the carbide fine powder 7% of 500 ~ 700 mesh,
925 cement 3%,
It is additional, account for sodium tripolyphosphate that above-mentioned raw materials total amount is 0.08% and calgon mixture, to account for above-mentioned raw materials total
Polypropylene explosion-proof fiber that the softening point measured as 0.04% is 120 ± 10 DEG C and to account for above-mentioned raw materials total amount be 0.03% to dissolve a little
For 80 ± 10 DEG C of water-soluble fibre；
The high alumina alum that particle diameter is 5 ~ 10mm, particle diameter is 3 ~ 5mm, particle diameter is 1 ~ 3mm, particle diameter is 0 ~ 1mm, particle diameter is 200 mesh
Al in soil2O3Percentage by weight be 85%.
Embodiment 6
A kind of foundry ladle castable, by weight percentage, it is made up of following raw material：
Particle diameter is 10 ~ 25mm alumine 10%,
Particle diameter is 5 ~ 10mm alumines 17%,
Particle diameter is 3 ~ 5mm alumines 15%,
Particle diameter is 1 ~ 3mm alumine 15%,
Particle diameter is 0 ~ 1mm alumine 10%,
Particle diameter is the alumine 12% of 200 mesh,
Particle diameter≤0.02um fine silica powder 5%,
Particle diameter is the carbide fine powder 10% of 500 ~ 700 mesh,
925 cement 6%,
It is additional, account for above-mentioned raw materials total amount be 0.16% sodium tripolyphosphate and calgon mixture, account for above-mentioned raw materials
Polypropylene explosion-proof fiber that the softening point that total amount is 0.04% is 120 ± 10 DEG C and account for above-mentioned raw materials total amount be 0.02% it is molten
Change point as 80 ± 10 DEG C of water-soluble fibre；
Particle diameter is 10 ~ 25mm, Al in 5 ~ 10mm, 3 ~ 5mm, 1 ~ 3mm, 0 ~ 1mm alumine2O3Percentage by weight it is equal
For 85%, particle diameter is Al in the alumine of 200 mesh2O3Percentage by weight be 88%.
Embodiment 7
A kind of foundry ladle castable, by weight percentage, it is made up of following raw material：
Particle diameter is 10 ~ 25mm alumine 16%,
Particle diameter is 5 ~ 10mm alumines 18%,
Particle diameter is 3 ~ 5mm alumines 15%,
Particle diameter is 1 ~ 3mm alumine 10%,
Particle diameter is 0 ~ 1mm alumine 14%,
Particle diameter is the alumine 11% of 200 mesh,
Particle diameter≤0.02um fine silica powder 6%,
Particle diameter is the carbide fine powder 5% of 500 ~ 700 mesh,
925 cement 5%,
It is additional, account for above-mentioned raw materials total amount be 0.07% sodium tripolyphosphate and calgon mixture, account for above-mentioned raw materials
Polypropylene explosion-proof fiber that the softening point that total amount is 0.05% is 120 ± 10 DEG C and to account for above-mentioned raw materials total amount be 0.02% to dissolve
Point is 80 ± 10 DEG C of water-soluble fibre；
Particle diameter is 10 ~ 25mm, Al in 5 ~ 10mm, 3 ~ 5mm, 1 ~ 3mm, 0 ~ 1mm alumine2O3Percentage by weight it is equal
For 80%, particle diameter is Al in the alumine of 200 mesh2O3Percentage by weight be 85%.
Embodiment 8
A kind of foundry ladle castable, by weight percentage, it is made up of following raw material：
Particle diameter is 10-25mm alumine 13%,
Particle diameter is 5-10mm alumine 17%,
Particle diameter is 3-5mm alumine 17%,
Particle diameter is 1-3mm alumine 14%,
Particle diameter is 0-1mm alumine 10%,
Particle diameter is the alumine fine powder 11% of 200 mesh,
Particle diameter≤0.02um fine silica powder 3%,
Particle diameter is the carbide fine powder 9% of 500 ~ 700 mesh,
Match 71 cement 6% of card,
It is additional, account for above-mentioned raw materials total amount be 0.15% sodium tripolyphosphate and calgon mixture, account for above-mentioned raw materials
Polypropylene explosion-proof fiber that the softening point that total amount is 0.03% is 120 ± 10 DEG C and to account for above-mentioned raw materials total amount be 0.02% to dissolve
Point is 80 ± 10 DEG C of water-soluble fibre；
Particle diameter is 10 ~ 25mm, Al in 5 ~ 10mm, 3 ~ 5mm, 1 ~ 3mm, 0 ~ 1mm alumine2O3Percentage by weight it is equal
For 85%, particle diameter is Al in the alumine of 200 mesh2O3Percentage by weight be 88%.
Embodiment 9
A kind of foundry ladle castable, by weight percentage, it is made up of following raw material：
Particle diameter is 10-25mm alumine 14%,
Particle diameter is 5-10mm alumine 17%,
Particle diameter is 3-5mm alumine 17%,
Particle diameter is 1-3mm alumine 14%,
Particle diameter is 0-1mm alumine 10%,
Particle diameter is the alumine fine powder 14% of 200 mesh,
Particle diameter≤0.02um fine silica powder 3%,
Particle diameter is the carbide fine powder 6% of 500 ~ 700 mesh,
925 cement 5%,
It is additional, account for above-mentioned raw materials total amount be 0.15% sodium tripolyphosphate and calgon mixture, account for above-mentioned raw materials
Polypropylene explosion-proof fiber that the softening point that total amount is 0.03% is 120 ± 10 DEG C and to account for above-mentioned raw materials total amount be 0.02% to dissolve
Point is 80 ± 10 DEG C of water-soluble fibre；
Particle diameter is 10 ~ 25mm, Al in 5 ~ 10mm, 3 ~ 5mm, 1 ~ 3mm, 0 ~ 1mm alumine2O3Percentage by weight it is equal
For 80%, particle diameter is Al in the alumine of 200 mesh2O3Percentage by weight be 85%.
Embodiment 10
A kind of foundry ladle castable, by weight percentage, it is made up of following raw material：
Particle diameter is 10-25mm alumine 11%,
Particle diameter is 5-10mm alumine 20%,
Particle diameter is 3-5mm alumine 18%,
Particle diameter is 1-3mm alumine 12%,
Particle diameter is 0-1mm alumine 11%,
Particle diameter is the alumine fine powder 12% of 200 mesh,
Particle diameter≤0.02um fine silica powder 3%,
Particle diameter is the carbide fine powder 5% of 500 ~ 700 mesh,
925 cement 8%,
It is additional, account for above-mentioned raw materials total amount be 0.09% sodium tripolyphosphate and calgon mixture, account for above-mentioned raw materials
Polypropylene explosion-proof fiber that the softening point that total amount is 0.06% is 120 ± 10 DEG C and to account for above-mentioned raw materials total amount be 0.04% to dissolve
Point is 80 ± 10 DEG C of water-soluble fibre；
Particle diameter is 10 ~ 25mm, Al in 5 ~ 10mm, 3 ~ 5mm, 1 ~ 3mm, 0 ~ 1mm alumine2O3Percentage by weight it is equal
For 83%, particle diameter is Al in the alumine of 200 mesh2O3Percentage by weight be 86%.
The testing result for the ladle castable that the dispensing of above-described embodiment 1 ~ 10 obtains is shown in Table 2.
One of any described preparation method of foundry ladle castable of above-described embodiment 1 ~ 10, step is as follows：
（1）All material is inserted in forced mixer by said ratio, dry-mixed 3 ~ 6 minutes, then addition accounts for above-mentioned
The water of raw material gross weight 5 ~ 8%, stirs；
（2）By step（1）The castable injection to stir has been set in the iron bag of mould, is shaken in charging
It is dynamic, castable is uniformly filled whole iron bag, add untill expecting to be vibrated to again without the discharge of a large amount of bubbles, 6 hours are stood under normal temperature
After be stripped；
（3）By step（2）Pour mass after the described demoulding, with 20 DEG C/h heating rate by room temperature to 200 DEG C,
After being incubated 16h, then with 35 DEG C/h heating rate it is warming up to 500 DEG C by 200 DEG C, is incubated 12 hours, then the heating with 60 DEG C/h
Speed is warming up to 900 ~ 1100 DEG C by 500 DEG C, is incubated 8 hours, obtains product.
The two of the preparation method of any described foundry ladle castable of above-described embodiment 1 ~ 10, step is as follows：
（1）All material is inserted in forced mixer by said ratio, dry-mixed 3 ~ 6 minutes, then addition accounts for above-mentioned
The water of raw material gross weight 5 ~ 8%, stirs；
（2）By step（1）The castable injection to stir has been set in the iron bag of mould, is shaken in charging
It is dynamic, castable is uniformly filled whole iron bag, add untill expecting to be vibrated to again without the discharge of a large amount of bubbles, 8 hours are stood under normal temperature
After be stripped；
（3）By step（2）Pour mass after the described demoulding, with 25 DEG C/h heating rate by room temperature to 200 DEG C,
After being incubated 20h, then with 40 DEG C/h heating rate it is warming up to 500 DEG C by 200 DEG C, is incubated 16 hours, then the heating with 70 DEG C/h
Speed is warming up to 900 ~ 1100 DEG C by 500 DEG C, is incubated 12 hours, obtains product.
The three of the preparation method of any described foundry ladle castable of above-described embodiment 1 ~ 10, step is as follows：
（1）All material is inserted in forced mixer by said ratio, dry-mixed 3 ~ 6 minutes, then addition accounts for above-mentioned
The water of raw material gross weight 5 ~ 8%, stirs；
（2）By step（1）The castable injection to stir has been set in the iron bag of mould, is shaken in charging
It is dynamic, castable is uniformly filled whole iron bag, add untill expecting to be vibrated to again without the discharge of a large amount of bubbles, 7 hours are stood under normal temperature
After be stripped；
（3）By step（2）Pour mass after the described demoulding, with 22 DEG C/h heating rate by room temperature to 200 DEG C,
After being incubated 18h, then with 38 DEG C/h heating rate it is warming up to 500 DEG C by 200 DEG C, is incubated 14 hours, then the heating with 65 DEG C/h
Speed is warming up to 900 ~ 1100 DEG C by 500 DEG C, is incubated 10 hours, produces product.
The four of the preparation method of any described foundry ladle castable of above-described embodiment 1 ~ 10, step is as follows：
（1）All material is inserted in forced mixer by said ratio, dry-mixed 3 ~ 6 minutes, then addition accounts for above-mentioned
The water of raw material gross weight 5 ~ 8%, stirs；
（2）By step（1）The castable injection to stir has been set in the iron bag of mould, is shaken in charging
It is dynamic, castable is uniformly filled whole iron bag, add untill expecting to be vibrated to again without the discharge of a large amount of bubbles, 7 hours are stood under normal temperature
After be stripped；
（3）By step（2）Pour mass after the described demoulding, with 23 DEG C/h heating rate by room temperature to 200 DEG C,
After being incubated 17h, then with 37 DEG C/h heating rate it is warming up to 500 DEG C by 200 DEG C, is incubated 13 hours, then the heating with 63 DEG C/h
Speed is warming up to 900 ~ 1100 DEG C by 500 DEG C, is incubated 9 hours, produces product.
。
Claims (6)
- A kind of 1. preparation method of foundry ladle castable, it is characterised in that：Preparation process is as follows：（1）The raw material of following percentage by weight is placed in mixer and mixed：Particle diameter be 5 ~ 10mm alumine 18 ~ 25%, grain Footpath is 3 ~ 5mm alumine 15 ~ 20%, and particle diameter is 1 ~ 3mm alumine 13 ~ 18%,Particle diameter be 0 ~ 1mm alumine 10 ~ 15%, particle diameter be 200 mesh alumine 15 ~ 20%, the two of particle diameter≤0.02um Ultrafine silica powder 3 ~ 6%, carbide fine powder 5 ~ 8%, cement 3 ~ 7%；And the additional above-mentioned raw materials total amount 0.06 ~ 0.15% of accounting for Sodium polyphosphate and the explosion-proof fiber for accounting for above-mentioned raw materials total amount 0.05 ~ 0.1%；By above-mentioned raw materials dry-mixed 3 ~ 6 points in mixer Clock, the water for accounting for above-mentioned all material gross weight 5 ~ 8% is then added, is stirred；（2）By step（1）The castable injection to stir has been set in the iron bag of mould, is vibrated, is made in charging Castable uniformly fills whole iron bag mould, adds untill expecting to be vibrated to bubble-free discharge again, is taken off after standing 6 ~ 8 hours under normal temperature Mould；（3）By step（2）Castable after the described demoulding, baking is started to warm up by room temperature, it is warming up to 900 in 55 ~ 76h ~ 1100 DEG C, you can use；Described heating is toasted：Demoulding castable is risen to 200 with 20 ~ 25 DEG C/h heating rate from room temperature DEG C, it is incubated 16 ~ 20 hours；Then 500 DEG C are warming up to by 200 DEG C with 35 ~ 40 DEG C/h heating rate, are incubated 12 ~ 16h；Continue 900 ~ 1100 DEG C are warming up to by 500 DEG C with 60 ~ 70 DEG C/h heating rate, is incubated 8 ~ 12h；Wherein, step（1）Described carbide fine powder is the discarded object of grinding tool Abrasive Industry processing, and the particle diameter of carbide fine powder is 500 ~ 700 mesh, hardness are Mohs 9.0, proportion 3.2g/cm3；The high alumina alum that the particle diameter is 5 ~ 10mm, particle diameter is 3 ~ 5mm, particle diameter is 1 ~ 3mm, particle diameter is 0 ~ 1mm, particle diameter is 200 mesh Al in soil2O3Percentage by weight be 85 ~ 88%.
- 2. the preparation method of foundry ladle castable according to claim 1, it is characterised in that：Step（1）Described water Mud is match 71 cement of card or 925 cement；Described sodium polyphosphate is the mixture of sodium tripolyphosphate and calgon；It is described Explosion-proof fiber for polypropylene explosion-proof fiber and water-soluble fibre mixture.
- 3. the preparation method of foundry ladle castable according to claim 2, it is characterised in that：Described polypropylene is explosion-proof The softening point of fiber is 120 ± 10 DEG C, and dissolving for described water-soluble fibre is a little 80 ± 10 DEG C.
- A kind of 4. preparation method of foundry ladle castable, it is characterised in that：Preparation process is as follows：A. the raw material of following percentage by weight is placed in mixer and mixed：Particle diameter is 10 ~ 25mm alumine 10 ~ 16%, Particle diameter is 5 ~ 10mm alumines 17 ~ 20%, and particle diameter is 3 ~ 5mm alumines 15 ~ 18%, and particle diameter is 1 ~ 3mm alumine 10 ~ 15%, particle diameter is 0 ~ 1mm alumine 10 ~ 14%, and particle diameter is the alumine 11 ~ 14% of 200 mesh, particle diameter≤0.02um's Fine silica powder 3 ~ 6%, carbide fine powder 5 ~ 10%, cement 5 ~ 8%；And the additional above-mentioned raw materials total amount 0.07 ~ 0.16% of accounting for Sodium polyphosphate and the explosion-proof fiber for accounting for above-mentioned raw materials total amount 0.05 ~ 0.1%；By above-mentioned raw materials dry-mixed 3 ~ 6 points in mixer Clock, the water for accounting for above-mentioned all material gross weight 5 ~ 8% is then added, is stirred；B. the castable to be stirred described in step a injection has been set in the iron bag of mould, has been vibrated in charging, make cast Material uniformly fills whole iron bag mould, adds untill expecting to be vibrated to bubble-free discharge again, is stripped after standing 6 ~ 8 hours under normal temperature；C. by the castable after the demoulding described in step b, baking is started to warm up by room temperature, 900 ~ 1100 are warming up in 55 ~ 76h DEG C, you can use；Described heating is toasted：Demoulding castable is risen to 200 DEG C with 20 ~ 25 DEG C/h heating rate from room temperature, Insulation 16 ~ 20 hours；Then 500 DEG C are warming up to by 200 DEG C with 35 ~ 40 DEG C/h heating rate, are incubated 12 ~ 16h；Continue with 60 ~ 70 DEG C/h heating rate is warming up to 900 ~ 1100 DEG C by 500 DEG C, is incubated 8 ~ 12h；Wherein, the carbide fine powder described in step a is the discarded object of grinding tool Abrasive Industry processing, and the particle diameter of carbide fine powder is 500 ~ 700 mesh, hardness are Mohs 9.0, proportion 3.2g/cm3；The high alumina that the particle diameter is 10 ~ 25mm, particle diameter is 5 ~ 10mm, particle diameter is 3 ~ 5mm, particle diameter is 1 ~ 3mm, particle diameter is 0 ~ 1mm Al in alumina2O3Percentage by weight be 80 ~ 85%；The particle diameter is Al in the alumine of 200 mesh2O3Percentage by weight be 85~88%。
- 5. the preparation method of foundry ladle castable according to claim 4, it is characterised in that：Cement described in step a For match 71 cement of card or 925 cement；Described sodium polyphosphate is the mixture of sodium tripolyphosphate and calgon；Described Explosion-proof fiber is the mixture of polypropylene explosion-proof fiber and water-soluble fibre.
- 6. the preparation method of foundry ladle castable according to claim 5, it is characterised in that：Described polypropylene is explosion-proof The softening point of fiber is 120 ± 10 DEG C, and dissolving for described water-soluble fibre is a little 80 ± 10 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510516636.6A CN105036776B (en) | 2015-08-21 | 2015-08-21 | A kind of foundry ladle castable and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510516636.6A CN105036776B (en) | 2015-08-21 | 2015-08-21 | A kind of foundry ladle castable and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105036776A CN105036776A (en) | 2015-11-11 |
| CN105036776B true CN105036776B (en) | 2017-11-17 |
Family
ID=54443825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510516636.6A Active CN105036776B (en) | 2015-08-21 | 2015-08-21 | A kind of foundry ladle castable and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105036776B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107344860B (en) * | 2017-07-18 | 2021-03-23 | 攀枝花市昌宁冶金材料有限责任公司 | Pouring material and pouring method for hot-metal ladle |
| CN107903047B (en) * | 2017-11-10 | 2021-06-22 | 中冶武汉冶金建筑研究院有限公司 | Iron runner castable containing more than 70% of high-alumina aggregate |
| CN110240487A (en) * | 2019-07-05 | 2019-09-17 | 巩义市兴嘉耐火材料有限公司 | A method of Industrial Stoves castable is prepared as raw material to build useless brick |
| CN110615686A (en) * | 2019-09-24 | 2019-12-27 | 安徽信息工程学院 | Cast iron ladle building process |
| CN112430064B (en) * | 2020-11-30 | 2022-12-16 | 江西和美陶瓷有限公司 | Ceramic tile containing silicon carbide waste and preparation method thereof |
| CN113072385A (en) * | 2021-03-09 | 2021-07-06 | 山东九龙新材料有限公司 | Ladle opening castable added with waste daily glass powder |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100503517C (en) * | 2007-09-21 | 2009-06-24 | 郑州荣达工矿集团有限公司 | Corundum ladle seat brick casting material |
| CN101407851A (en) * | 2008-11-28 | 2009-04-15 | 莱芜钢铁股份有限公司 | Side hot metal charging chute inner lining of hot-metal mixer and manufacturing method thereof |
| CN101712560B (en) * | 2009-10-28 | 2012-01-04 | 郑州真金耐火材料有限责任公司 | High-strength castable |
-
2015
- 2015-08-21 CN CN201510516636.6A patent/CN105036776B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105036776A (en) | 2015-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105036776B (en) | A kind of foundry ladle castable and preparation method thereof | |
| CN101691291B (en) | Method for producing pasty unclassified tailing filling materials containing red mud | |
| CN103864455B (en) | Method for yellow phosphorus slag base aerated building blocks | |
| CN104355634A (en) | Alumina electric furnace cover and preparation method thereof | |
| CN102153327A (en) | Ceramic tile adhesive | |
| CN108892462A (en) | A method of high-strength concrete is prepared using granite barren rock and Low-silica iron ore tailings | |
| CN102491330B (en) | Production process of silicon carbide | |
| CN103936441B (en) | A kind ofly reclaim and utilize the making method of the fast dry type anti-explosion refractory castable of scrap iron ditch reworked material | |
| CN107879733A (en) | A kind of blast furnace iron outlet groove quick-drying gravity flow pouring material | |
| CN102701671A (en) | High-content coal ash foam filling body and preparation method thereof | |
| CN104016601B (en) | The method that industrial residue sludge produces cement cementitious material | |
| CN104193357B (en) | A kind of recovery corundum gravity flow pouring material and constructional method thereof | |
| CN103011758A (en) | High-strength red mud concrete and industrial production method and application thereof | |
| JP2017080642A (en) | Earthwork material and manufacturing method thereof | |
| CN109320266B (en) | Method for producing environment-friendly quick-drying converter gunning mix by adopting waste magnesia-calcium bricks | |
| CN104311078A (en) | Castable for working layer of refining ladle slag line as well as preparation method and application of castable | |
| CN107721436A (en) | A kind of metallurgical intermediate frequency furnace dry type ramming material | |
| CN104876534B (en) | A method of steam-pressing brisk is prepared using Tungsten tailing and tungsten ore barren rock | |
| CN104402471A (en) | Low-cost aluminum-chromium-zirconium ramming material and preparation method thereof | |
| CN102515808A (en) | Recycling method of blast furnace tapping channel refractory material castable and corundum furnace slag | |
| CN103159490B (en) | Swinging chute working lining castable of composite material and preparation method of castable | |
| CN109721342A (en) | A kind of tapping pouring refractories and preparation method thereof | |
| CN104446548A (en) | Low-cost aluminum furnace lining hot repairing mix and preparation method thereof | |
| CN102372486A (en) | Low-cost magnesium tundish paint and its preparation method | |
| CN102489218A (en) | Method for granulating and forming silicon carbide fine powder and silicon carbide granule |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |