CN103467115A - Waste ceramic castable - Google Patents
Waste ceramic castable Download PDFInfo
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- CN103467115A CN103467115A CN2013103705442A CN201310370544A CN103467115A CN 103467115 A CN103467115 A CN 103467115A CN 2013103705442 A CN2013103705442 A CN 2013103705442A CN 201310370544 A CN201310370544 A CN 201310370544A CN 103467115 A CN103467115 A CN 103467115A
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- waste ceramic
- waste
- alumina
- cement
- ceramic
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Abstract
The invention discloses a waste ceramic castable which comprises the following raw materials by weight: 70-80 wt% of waste ceramic, 10-20 wt% of alumina, 5-8 wt% of 92 silica powder, 1-2 wt% of AL2O3 and 2-3 wt% of CA-70 cement. Industrial waste namely the waste ceramic is introduced to be taken as aggregate and powder to be added into a recipe to adjust the appropriate substrate composition, so that the wear-resisting property of the castable is improved, the thermal shock resistance is improved, meanwhile, the cost is reduced, the environmental pollution is reduced, and the waste ceramic castable has the characteristics that the economic benefit is high, and the performance fits in with the market requirements.
Description
Technical field
The present invention relates to the waste ceramic mould material.
Background technology
At present, the pouring box integral cast forever is lined with Al
2o
3-SiO
2based material, Al
2o
3a series of products such as the low cement deposit material that-MgO based material, interpolation ultrafine powder and other additive are feature, ultra-low cement deposit material, cement-free castable, the common employing corundum of product aggregate part, mullite, zircon, silicon carbide, alumina etc.Wear resisting property and the thermal shock resistance of mould material are poor, and cost is also higher.
Summary of the invention
Technical problem to be solved by this invention just is to provide a kind of waste ceramic mould material, improves the wear resisting property of mould material, improves thermal shock resistance, reduces costs environmental contamination reduction simultaneously.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of waste ceramic mould material is comprised of the raw material of following components by weight percent: waste ceramic 70～80wt%, alumina 10～20wt%, 92 silicon powder 5～8wt%, AL
2o
3micro mist 1～2wt%, CA-70 cement 2～3wt%.
Preferably, the consisting of of waste ceramic in described raw material, particle diameter is waste ceramic 10～15wt%, the waste ceramic 25～35wt% that particle diameter is 0～3mm that 5～8mm waste ceramic, 25～30wt%, particle diameter are 3～5mm.
Preferably, in described raw material, the weight percent of each component is waste ceramic 75wt%, alumina 15wt%, 92 silicon powder 6wt%, AL
2o
3micro mist 1.5wt%, CA-70 cement 2.5wt%.
Preferably, in described raw material, the weight percent of each component is waste ceramic 70wt%, alumina 20wt%, 92 silicon powder 6wt%, AL
2o
3micro mist 2wt%, CA-70 cement 2wt%.
Preferably, in described raw material, the weight percent of each component is waste ceramic 80wt%, alumina 11wt%, 92 silicon powder 5wt%, AL
2o
3micro mist 1wt%, CA-70 cement 3wt%.
The present invention introduces the trade waste waste ceramic and adds in formula as aggregate and powder, and adjust suitable matrix and form, thus the wear resisting property of raising mould material, improve thermal shock resistance, reduce costs, environmental contamination reduction, have the advantages that economic benefit is high, performance accords with the demands of the market simultaneously.
Thereby the present invention has the following advantages:
1. introduce industrial waste-porcelain powder:
The Industry Waste porcelain has passed through the high temperature of 1200 ℃～1300 ℃ and has watered into processing, has certain intensity, and dense and stable, volume density is lighter, and hardness is high, its AI
2o
3content generally between 20～30%, SiO
2content generally between 60～70%, the impurity such as iron content are few, research and development that the low aluminium alkali resistance of high silicon is good is incorporated into the porcelain powder according to these character mould material with apply.Improving the waste utilization rate and reducing waste discharge is target, take technological innovation as power, and strengthening economizes on resources and protection of the environment consciousness.
Raw material extensively, make resource be able to recycle:
China is ceramic production and consumption big country.The starting material of pottery are mainly natural earth, the Nonrenewable resources such as ore deposit, and annual consumes number in hundred million tons.Due to its process of casting through high temperature, will inevitably produce waste product.These waste ceramic extreme hardness, can't digest naturally, also can not be as the ceramic raw material repeat function, can only landfill disposal, and processing cost is high, and useless porcelain quantity is considerable, these waste ceramics have been become to resource and be applied, the industrial refuse of both having dissolved, make again resource be able to recycle.
3, long service life:
The high silicon of this product utilization ceramic particle hangs down the good characteristics of aluminium alkali resistance, when the waste ceramic particle of take loses as aggregate in use runs into the alkali gas cut, the low al composition of high silicon and alkali solid/liquid/gas reactions generate the high viscosity liquid phase, be attached to the mould material surface, form glaze shape protective layer, thereby the blocking surface pore stops the erosion of alkali, strengthen alkaline resistance properties; And add micropowders in product, thereby intensity is high; The construction good fluidity, easy construction; Maintenance is simple, without special curing, and heat-shock resistance and erosion-resisting characteristics excellence in use, by the test climbing steel, water steel, be 100～110 heats mean life, higher than at present more than normal pouring material heat in work-ing lifes 20.
4, low-cost, be applicable to applying:
At first, starting material porcelain powder market value is not higher than 500.00 yuan/tons, and corundum 4900-5500 yuan/ton, mullite 2800-3000 yuan/ton, 80% alumina 1400-1700 yuan/ton, utilize in porcelain powder mould material starting material 75% to be the porcelain powder, contrast is adjusted most economical alumina raw and is also fallen this 1000 yuan of left and right.
Secondly, product performance, work-ing life are all suitable with conventional products, and product cost has realized the reduction steel-making cost well below conventional mould material, and popularizing application prospect is long-range.
Embodiment
Waste ceramic mould material of the present invention is comprised of the raw material of following components by weight percent: waste ceramic 70～80wt%, alumina 10～20wt%, 92 silicon powder 5～8wt%, AL
2o
3micro mist 1～2wt%, CA-70 cement 2～3wt%.The consisting of of waste ceramic in described raw material, particle diameter is waste ceramic 10～15wt%, the waste ceramic 25～35wt% that particle diameter is 0～3mm that 5～8mm waste ceramic, 25～30wt%, particle diameter are 3～5mm.
Specific embodiment 1, in described raw material, the weight percent of each component is waste ceramic 75wt%, alumina 15wt%, 92 silicon powder 6wt%, AL
2o
3micro mist 1.5wt%, CA-70 cement 2.5wt%.
Specific embodiment 2, in described raw material, the weight percent of each component is waste ceramic 70wt%, alumina 20wt%, 92 silicon powder 6wt%, AL
2o
3micro mist 2wt%, CA-70 cement 2wt%.
Specific embodiment 3, in described raw material, the weight percent of each component is waste ceramic 80wt%, alumina 11wt%, 92 silicon powder 5wt%, AL
2o
3micro mist 1wt%, CA-70 cement 3wt%.
Above-mentioned waste ceramic mould material preparation method comprises the following steps successively:
A) after waste ceramic is sieved by the particle diameter size, waste ceramic 25～30wt% that to get particle diameter be 5～8mm; Waste ceramic 10～15wt% that particle diameter is 3～5mm; Waste ceramic 25～35wt% that particle diameter is 0～3mm;
B) after alumina is sieved by the particle diameter size, alumina 3～5wt% that to get particle diameter be 0～1mm;
C) get the alumina particle of particle diameter below 1mm and be finely ground into ball mill the alumina fine powder that particle diameter is 0.088mm, get alumina fine powder 10～12wt% of 0.088mm;
F) take batching and carry out the composite binder pre-mixing: take 92 silicon powders: 60wt%; AL
2o
3micro mist 15%; CA-70 cement 25wt%, pour batching into the forced stirrer stirring and carry out pre-mixing in 50～60 minutes, gets 10wt% after pre-mixing and put to Preblend system PBS;
G) waste ceramic particle, alumina particle are filled in the Preblend system PBS tank, batch mixing was delivered to mixing system after 6～8 minutes;
H) in mixing system by f) batching and the g that carry) auxiliary material carried of step stirs together after 8～12 minutes and carries out packing and obtain waste ceramic mould material finished product.
In foregoing description, in composite binder, each component is that part by weight is to occupy the weight percent of composite binder, and other are the weight percent that occupies waste ceramic mould material gross weight.
The technical performance index of product of the present invention is as follows:
1、Al
2O
3（%）≥55
2, volume density (g/cm3): 110 ℃ of * 24h >=2.4
1400℃×3h≥2.36
3,110 ℃ of * 24h >=5 of folding strength (MPa)
1400℃×3h≥12
4,110 ℃ of * 24h >=30 of compressive strength (MPa)
1400℃×3h≥90
5, heater wire velocity of variation %1400 ℃ of * 3h ± 0.5.
Claims (5)
1. a waste ceramic mould material, is characterized in that being comprised of the raw material of following components by weight percent: waste ceramic 70～80wt%, alumina 10～20wt%, 92 silicon powder 5～8wt%, AL
2o
3micro mist 1～2wt%, CA-70 cement 2～3wt%.
2. waste ceramic mould material according to claim 1, it is characterized in that: the consisting of of waste ceramic in described raw material, particle diameter is waste ceramic 13～15wt%, the waste ceramic 30～35wt% that particle diameter is 0～3mm that 5～8mm waste ceramic, 27～30wt%, particle diameter are 3～5mm.
3. waste ceramic mould material according to claim 1, it is characterized in that: in described raw material, the weight percent of each component is waste ceramic 75wt%, alumina 15wt%, 92 silicon powder 6wt%, AL
2o
3micro mist 1.5wt%, CA-70 cement 2.5wt%.
4. waste ceramic mould material according to claim 1, it is characterized in that: in described raw material, the weight percent of each component is waste ceramic 70wt%, alumina 20wt%, 92 silicon powder 6wt%, AL
2o
3micro mist 2wt%, CA-70 cement 2wt%.
5. waste ceramic mould material according to claim 1, it is characterized in that: in described raw material, the weight percent of each component is waste ceramic 80wt%, alumina 11wt%, 92 silicon powder 5wt%, AL
2o
3micro mist 1wt%, CA-70 cement 3wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103705442A CN103467115A (en) | 2013-08-22 | 2013-08-22 | Waste ceramic castable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103705442A CN103467115A (en) | 2013-08-22 | 2013-08-22 | Waste ceramic castable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103467115A true CN103467115A (en) | 2013-12-25 |
Family
ID=49792198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103705442A Pending CN103467115A (en) | 2013-08-22 | 2013-08-22 | Waste ceramic castable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103467115A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103771884A (en) * | 2014-01-07 | 2014-05-07 | 邹平耀华特耐科技有限公司 | Light abrasion-resistance flame-retardant castable by using silicate waste as raw material and preparation method thereof |
| CN110903077A (en) * | 2019-12-20 | 2020-03-24 | 攀枝花钢城集团有限公司 | Castable for ladle cover of steelmaking tundish |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159491A (en) * | 2013-04-11 | 2013-06-19 | 金刚新材料股份有限公司 | Preparation method of wear-resistant high-temperature-resistant casting material |
-
2013
- 2013-08-22 CN CN2013103705442A patent/CN103467115A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159491A (en) * | 2013-04-11 | 2013-06-19 | 金刚新材料股份有限公司 | Preparation method of wear-resistant high-temperature-resistant casting material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103771884A (en) * | 2014-01-07 | 2014-05-07 | 邹平耀华特耐科技有限公司 | Light abrasion-resistance flame-retardant castable by using silicate waste as raw material and preparation method thereof |
| CN110903077A (en) * | 2019-12-20 | 2020-03-24 | 攀枝花钢城集团有限公司 | Castable for ladle cover of steelmaking tundish |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131225 |