CN106348765A - Working table castable - Google Patents
Working table castable Download PDFInfo
- Publication number
- CN106348765A CN106348765A CN201610706703.5A CN201610706703A CN106348765A CN 106348765 A CN106348765 A CN 106348765A CN 201610706703 A CN201610706703 A CN 201610706703A CN 106348765 A CN106348765 A CN 106348765A
- Authority
- CN
- China
- Prior art keywords
- parts
- castable
- work top
- spinel
- working table
- 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.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
Abstract
The invention provides working table castable. The working table castable is prepared from the following components in parts by weight: 3 to 8 parts of synthetic strontium aluminate, 5 to 10 parts of nickel iron spinel, 20 to 35 parts of raw pyrophyllite, 5 to 10 parts of synthetic corundum, 30 to 40 parts of special-grade bauxite, 10 to 15 parts of synthetic magnesia-zirconia powder, 5 to 15 parts of kaolin, 3 to 5 parts of nano nickel carbonate, 3 to 8 parts of calcium aluminate cement, 0.1 to 0.2 part of additional dispersing agent, and 0.1 part of flatting agent. By implementing the whole technical scheme, the weaknesses of the current product are relieved, the requirement of the current product can be well met, and the technical purpose of the invention is realized.
Description
Technical field
The present invention relates to a kind of unshape refractory, the work top castable of especially a kind of heating furnace.
Background technology
At present, in heat treatment industry, need heavier Large Steel baslled iron body to be placed directly on kiln car, then kiln car
Push in heat-treatment furnace, after time is up after workpiece heat, then the workpiece of high temperature is transported to forged before forging machine.With height
The heavy refractory material work top of warm absorption surface not only will bear weigh several tons or tens of tons of high temperature workpiece, also wants energy
Enough resist the reaction of high-temperature steel baslled iron body and refractory material.Require work top will have relatively at 1100 to 1400 DEG C at high temperature
Good creep resistance, thermal shock resistance, high wearability is it is often more important that opposing iron scale is anti-to the erosion damage of work top
Should.In the prior art, typically to carry out pouring into a mould work top using high alumina castable and mullite castable.Using this
Although two kinds of castables can meet certain high temperature requirement to a certain extent, can not preferably resist the infiltration of iron scale
Corrode, application property is poor, and wearability is poor, and creep resistance is poor, and globality is poor, during use, table top produces substantial amounts of splitting
Stricture of vagina, service life is extremely short, up to three or four months.Have a strong impact on the normal use of heating furnace kiln car, frequent maintenance, impact
Product quality, increases energy resource consumption.
Content of the invention
For the defect during overcoming existing High-Alumina and mullite castable to use, the present invention provides one kind to have
Antioxidation iron sheet corrodes, and fire resisting, wear-resisting and abrasion resistance are high, and preferably, workability preferably, can greatly prolong kiln for creep resistance
The castable refractory of ride face service life.
The present invention solves above-mentioned technical problem and be the technical scheme is that a kind of work top castable, by following heavy
Amount weighbf component composition: synthesis strontium aluminate 3-8, NiFe_2O_4 spinel 5-10, leave alabaster 20-35, synthesize corundum 5-10, special
Level Alumina 30-40, synthesizes magnesium zircon sand 10-15, sub- high soil 5-15, nano-calcium carbonate nickel 3-5, aluminous cement 3-8；Additional dispersant
0.1-0.2, levelling agent 0.1.
Further, described NiFe_2O_4 spinel is positive NiFe_2O_4 spinel.
Further, the weight content of described leave alabaster is more than 98%.
Further, what described sub- height was native mainly consists of highly active anhydrous aluminium silicate and zirconium nitride, weight both it
Amount ratio is 90:10.
Further, described dispersant is refpac®288, its true specific gravity is 2.60-2.70 gram of per cubic centimeter, heap
Long-pending density 1.15-1.30 gram is per cubic centimeter, and Exemplary chemical composition is (percentage by weight): aluminium oxide 62-64%, sio2＜
1.0%.
Further, the weight content of described nano-calcium carbonate nickel is more than 99%.
Further, the weight content of described synthesis magnesium zircon sand is more than 99%.
Further, the weight content of described synthesis corundum is more than 99%, and remaining impurity is mainly silicon dioxide.
Further, described levelling agent is polyether siloxane copolymer.
A kind of preparation method of work top castable, comprises the following steps: stirs mixing in above-mentioned parts by weight ratio
Uniformly, then onsite application when add appropriate clean water, be stirred with forced stirrer, when meeting construction requirement, stirring
The castable mixed is put into inside the mould of work top, carries out vibrations with vibrating head and constructs.
Compared with the material of existing use, the invention has the beneficial effects as follows: 1, work top castable of the present invention has
Higher elevated temperature strength, can undertake the weight of heating steel billet；The infiltration that iron scale can be resisted under high temperature is corroded, and improves
Wearability, extends body of heater service life 2-3 times.2nd, castable good thermal shock of the present invention, not shrinkage cracking, globality
Good, it is effectively protected the globality safety of work top.3rd, the present invention can step-reaction in use, sub- high soil and
Aluminous cement has the effect of plural gel, can suppress the surface alkalinization of table top again；Strontium aluminate, synthesizes corundum, nickel
Hercynite, the material such as nano-calcium carbonate nickel is permissible to the steel billet iron sheet impurity entering in using inside work top fire resisting liner body
Play purification, substantially increase the high temperature overall performance of workbench castable；The present invention is due to adding dispersant with high efficiency
refpac®288, the rational grain size distribution of leave alabaster and whole scheme obtains a kind of good castable of workability,
Solve the bad defect of current production workability.By the enforcement of whole technical scheme, improve current production presence
Deficiency, preferably meets the needs of current production it is achieved that the technical purpose of the present invention.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
A kind of work top castable, is made up of following parts by weighbf component: synthesis strontium aluminate 5, NiFe_2O_4 spinel 10, leave
Alabaster 20, synthesizes corundum 5, high grade bauxite 30, synthesizes magnesium zircon sand 10, sub- high soil 10, nano-calcium carbonate nickel 5, aluminous cement 5；
Additional refpac®288,0.2, polyether siloxane copolymer 0.1.
Embodiment 2
A kind of work top castable, is made up of following parts by weighbf component: synthesis strontium aluminate 6, NiFe_2O_4 spinel 10, leave
Alabaster 20, synthesizes corundum 5, high grade bauxite 30, synthesizes magnesium zircon sand 10, sub- high soil 9, nano-calcium carbonate nickel 3, aluminous cement 7；Outward
Plus refpac®288,0.16, polyether siloxane copolymer 0.1.
Embodiment 3
A kind of work top castable, is made up of following parts by weighbf component: synthesis strontium aluminate 7, NiFe_2O_4 spinel 10, leave
Alabaster 20, synthesizes corundum 5, high grade bauxite 30, synthesizes magnesium zircon sand 10, sub- high soil 8, nano-calcium carbonate nickel 3, aluminous cement 7；Outward
Plus refpac®288,0.18, polyether siloxane copolymer 0.1.
Embodiment 4
A kind of work top castable, is made up of following parts by weighbf component: synthesis strontium aluminate 8, NiFe_2O_4 spinel 10, leave
Alabaster 20, synthesizes corundum 5, high grade bauxite 30, synthesizes magnesium zircon sand 11, sub- high soil 9, nano-calcium carbonate nickel 3, aluminous cement 4；Outward
Plus refpac®288,0.16, polyether siloxane copolymer 0.1.
Embodiment 5
A kind of Silicon-magnesium fireproof wear-resistant composite castable, is made up of following parts by weighbf component: synthesis strontium aluminate 6, and ferronickel point is brilliant
Stone 10, leave alabaster 20, synthesize corundum 5, high grade bauxite 30, synthesize magnesium zircon sand 10, sub- high soil 8, nano-calcium carbonate nickel 3, aluminic acid
Calcium cement 8；Additional refpac®288,0.15, polyether siloxane copolymer 0.1.
A kind of preparation method of work top castable, comprises the following steps: stirs mixing in above-mentioned parts by weight ratio
Uniformly, then onsite application when add appropriate clean water, be stirred with forced stirrer, when meeting construction requirement,
The castable being stirred is put into inside the mould of work top, carries out vibrations with vibrating head and constructs.Above-described embodiment 1,2,
3rd, 4,5 through using, and service life is current 2-3 times, and trolley surface is smooth, flawless, and no alkalize table top, antioxidation iron sheet
Aggressivity is good.
As described above, only presently preferred embodiments of the present invention, when can not with this limit the present invention enforcement scope,
Those skilled in the art can make any modification to the present embodiment after reading this specification as needed, but as long as at this
All protected by Patent Law in the right of invention.
Claims (4)
1. a kind of work top castable, is made up of following parts by weighbf component: synthesis strontium aluminate 3-8, NiFe_2O_4 spinel 5-
10, leave alabaster 20-35, synthesize corundum 5-10, high grade bauxite 30-40, synthesize magnesium zircon sand 10-15, sub- high soil 5-15, nanometer
Nickelous carbonate 3-5, aluminous cement 3-8；Additional dispersant 0.1-0.2, levelling agent 0.1.
2. as claimed in claim 1 a kind of work top castable it is characterised in that: described NiFe_2O_4 spinel be positive ferronickel
Spinelle.
3. as claimed in claim 1 a kind of work top castable it is characterised in that: mainly the consisting of of described sub- high soil
Highly active anhydrous aluminium silicate and zirconium nitride, part by weight both it is 90:10.
4. as claimed in claim 1 a kind of work top castable it is characterised in that: the weight content of described raw pyrophillite
For more than 98%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610706703.5A CN106348765A (en) | 2016-08-23 | 2016-08-23 | Working table castable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610706703.5A CN106348765A (en) | 2016-08-23 | 2016-08-23 | Working table castable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106348765A true CN106348765A (en) | 2017-01-25 |
Family
ID=57843904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610706703.5A Pending CN106348765A (en) | 2016-08-23 | 2016-08-23 | Working table castable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106348765A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07291747A (en) * | 1994-04-26 | 1995-11-07 | Nippon Steel Corp | Heat insulating monolithic refractory |
| CN102203033A (en) * | 2008-10-24 | 2011-09-28 | 新日本制铁株式会社 | Binder for unshaped refractory, and unshaped refractory |
-
2016
- 2016-08-23 CN CN201610706703.5A patent/CN106348765A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07291747A (en) * | 1994-04-26 | 1995-11-07 | Nippon Steel Corp | Heat insulating monolithic refractory |
| CN102203033A (en) * | 2008-10-24 | 2011-09-28 | 新日本制铁株式会社 | Binder for unshaped refractory, and unshaped refractory |
Non-Patent Citations (3)
| Title |
|---|
| 朱新伟等: "电熔镁锆砂加入量对RH精炼炉用刚玉-尖晶石浇注料性能的影响", 《耐火材料》 * |
| 贾江议等: "铝酸钙水泥对硅酸铝质浇注料性能的影响", 《陶瓷》 * |
| 金国泉等: "添加NiCO3对常压浸出除铁效果的探讨", 《新疆有色金属》 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170125 |
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| WD01 | Invention patent application deemed withdrawn after publication |