CN109516819A - Grid section of refractory coating and preparation method thereof is fired on a kind of refractory coating, surface - Google Patents
Grid section of refractory coating and preparation method thereof is fired on a kind of refractory coating, surface Download PDFInfo
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- CN109516819A CN109516819A CN201811502213.9A CN201811502213A CN109516819A CN 109516819 A CN109516819 A CN 109516819A CN 201811502213 A CN201811502213 A CN 201811502213A CN 109516819 A CN109516819 A CN 109516819A
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- 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
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- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
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- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses the grid sections and preparation method thereof that refractory coating is fired on a kind of refractory coating, surface, it is applied to field of metal matrix composite, the refractory coating includes the liquid material and solid material that mass ratio is 1:1, and the liquid material is stirring evenly and then adding into solid abrasive lapping 15-30 minutes and refractory coating slurries are made；The grid section includes grid section ontology, and the surface of the grid section ontology, which is fired, one layer and the combined refractory coating of grid section ontology, and the production stage of the grid section includes: (1) surface sand-blasting process；(2) ingredient；(3) it is stained with slurry；(4) it dries；(5) secondary to be stained with slurry drying；(6) it fires；(7) cooling；(8) storage is examined；The refractory coating can be used as the protective layer of all metal products, and grid section made from this method is firmly combined with refractory coating, not easily to fall off；Its wearability and good corrosion resistance, effective protection grid section, extend its service life, there is the necessity widelyd popularize.
Description
Technical field
The present invention relates to field of metal matrix composite, refractory coating is fired on specifically a kind of refractory coating, surface
Grid section and preparation method thereof.
Background technique
Metal product can all be arrived in every aspect, the every trade industry industry of daily life, in use process, metal surface vulnerable to
Different degrees of abrasion, corrosion and be damaged to waste product, it is necessary to metal surface can be coated in, for protecting gold by researching and developing one kind
The material of metal surface, to increase its service life.
Grid section is the critical component of sintering machine, and operating temperature is usually up to 900 DEG C or more.Sintering machine is completed to be sintered
Task and after laying down sinter, grid section, again by cooling effect sharply, while still suffering from sinter on loop
Shock, corrosion and high temperature wear.After the iterative cycles effect for the processes such as being heated, cooling down, hit, wear and corrode,
Grid section surface gradually aoxidizes, cracks, collapsing and damage with bending deformation, influences the normal work of sintering machine.So grid section belongs to
Vulnerable part, the quality of grid section performance determine the superiority and inferiority of sintering machine technical indicator.
Currently, the grid section majority that China's sintering machine uses is used and is integrally cast, average life 12-18
A month, in order to prolong its service life, it is necessary to coat a protective layer on the surface of grid section ontology.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of refractory coating, surface fire refractory coating grid section and its
Preparation method, the refractory coating can be coated in the surface of cast iron, play protection cast iron body as protective layer, extend its use
The effect in service life；The grid section has fired one layer of refractory coating to shield on the surface of former grid section ontology, effectively extends
The service life of grid section, and then the service life of sintering machine is improved, this method makes the surface and refractory coating jail of grid section ontology
Jail combines, which plays the role of being effectively protected to grid section ontology, and wearability provides significantly, and service life is prolonged
It is long.
In order to solve the above technical problems, the technical scheme adopted by the invention is that:
A kind of refractory coating, the liquid material and solid material for being 1:1 including mass ratio, the liquid material are stirring evenly and then adding into solid
Refractory coating slurries are made within abrasive lapping 15-30 minutes；The liquid material includes composition mass parts ratio are as follows: waterglass 75-85, temperature
The water 35-45 and sodium tripolyphosphate 7-11 that degree is 60-80 DEG C；The solid material includes composition mass parts ratio are as follows: aluminium oxide 15-
25, calcium carbonate 3-5, chromium oxide 25-32, iron oxide 4-7, silica 40-50 and prodan 5-9.
The present invention also provides the grid section that refractory coating is fired on a kind of surface, including grid section ontology, the tables of the grid section ontology
Face, which is fired, one layer of refractory coating, and the refractory coating is inorganic material, with a thickness of 1.5-2.5mm.
The grid section further improvement lies in that: the refractory coating with a thickness of 2mm.
The grid section further improvement lies in that: the refractory coating includes bottom and surface layer, and the bottom is arranged in grid section
Between the surface and surface layer of ontology.
The present invention also provides a kind of surface fire refractory coating grid section preparation method the following steps are included:
(1) blasting treatment sandblasting: is carried out on the surface of grid section ontology；
(2) ingredient slurrying: being stirring evenly and then adding into the solid material of mass ratio 1:1 for liquid material and grinds 15-30 minutes and is slurried,
Slurries are contained in slurry pool；
The liquid material includes composition mass parts ratio are as follows: waterglass 75-85, the water 35-45 and trimerization phosphorus that temperature is 60-80 DEG C
Sour sodium 7-11；The solid material includes composition mass parts ratio are as follows: aluminium oxide 15-25, calcium carbonate 3-5, chromium oxide 25-32, oxygen
Change iron 4-7, silica 40-50 and prodan 5-9；
(3) be stained with slurry: the grid section ontology of step (1) is completely immersed in the slurry pool of step (2), and the surface of grid section ontology is made to overwork slurry
Liquid；
(4) it dries: the grid section ontology that step (3) overworks slurries is put into drying in drying chamber；
(5) secondary slurry of being stained with: one layer of bottom is formed on the grid section ontology after step (4) drying, has the grid section ontology of bottom herein
It is put into the slurry pool of step (2), so that its surface is overworked slurries again, and the grid section ontology for overworking slurries again is placed into baking
It is dried in room, the grid section body surface after drying again forms one layer of surface layer；
(6) it fires: the later grid section ontology of step (5) drying being placed into heating furnace and is fired 2 hours through 390-410 DEG C；
(7) cooling: after the completion of grid section ontology is fired, natural cooling；
(8) it examines: being packed in storage after the surface examination of grid section ontology is qualified.
This preparation method further improvement lies in that: step (4) and step (5) drying temperature in drying chamber are 50-55 DEG C,
Drying time is 24 hours.
This preparation method further improvement lies in that: step (6) sintering procedure carries out in resistance-type heating furnace, fire behaviour
Make as follows: the grid section ontology after drying again is put into resistance-type heating furnace, makes in-furnace temperature to the energization of resistance-type heating furnace
It increases: being first warming up to 100 DEG C with the speed of 50 DEG C/h, kept the temperature after being then warming up to 390-410 DEG C with the speed of 100 DEG C/h
2h, power-off stop heating, come out of the stove to be cooled to 80 DEG C or less in the resistance-type heating furnace.
This preparation method further improvement lies in that: the test stone of step (8): grid section body surface forms a layer thickness
Uniform refractory coating, the refractory coating with a thickness of 1.5-2.5mm.
By adopting the above-described technical solution, the beneficial effect that the present invention obtains is:
Refractory coating disclosed by the invention can be coated or be fired on the surface of all metal products, be played to the surface of metal product
Effect is effectively protected, extends the service life of metal product.
The present invention on the basis of former grid section ontology, is fired under the premise of not changing grid section installation dimension by high temperature,
It is formed on its surface refractory coating.The grid section has following excellent performance:
1, the grid section ontology is firmly combined with refractory coating, is tested and is not fallen off from 3 meters of Free Falling Body in Upper Air refractory coatings；
2, the refractory coating on grid section surface has completely cut off grid section ontology and has contacted with the direct of sinter, and refractory coating belongs to inorganic material
Material plays protection grid section ontology, improves wearability not with sinter and other substance reactions；
3, the refractory coating on grid section surface is beautiful, bright and clean.When the bright and clean raising crossed reduces stirring between grate-layer material and grid section
Frictional force keeps stirring completely thorough, so that the paste for reducing grid section blocks up phenomenon, it is especially flat to burn trolley.
Under the premise of guaranteeing finished product rate, the service life of grid section is extended.Effectively extend the use of sintering vehicle
Service life.Its design science, thinking is advanced, specifies direction for the sound development of this field.
Meanwhile the intensity of grid section itself increases, abrasion reduces, and the probability of sintering vehicle parking maintenance tails off, and improving it makes
With the service life, covert protects bicycle beam and sintering vehicle.
Specific embodiment
The present invention is described in further details below with reference to embodiment:
A kind of refractory coating, the liquid material and solid material for being 1:1 including mass ratio, the liquid material are stirring evenly and then adding into solid
Refractory coating slurries are made within abrasive lapping 15-30 minutes；The liquid material includes composition mass parts ratio are as follows: waterglass 75-85, temperature
The water 35-45 and sodium tripolyphosphate 7-11 that degree is 60-80 DEG C；The solid material includes composition mass parts ratio are as follows: aluminium oxide 15-
25, calcium carbonate 3-5, chromium oxide 25-32, iron oxide 4-7, silica 40-50 and prodan 5-9.
The refractory coating can be used as the protective layer coating of metal or fire in all metallic surfaces, play effective protection work
With greatly improving the service life of metal product.
The present invention also provides the grid section that refractory coating is fired on a kind of surface, the table including grid section ontology and the grid section ontology
The refractory coating firmly combined with grid section ontology that face is fired, through high temperature firing, the two occurs physical-chemical reaction and securely ties
Close a kind of composite material, the refractory coating be inorganic material, play the role of effective protection grid section ontology, can blackening in institute
There is metallic surface, with a thickness of 1.5-2.5mm, optimum thickness 2mm.
The refractory coating includes bottom and surface layer, and the bottom is arranged between the surface and surface layer of grid section ontology.Institute
Stating bottom is the flame retardant coating being applied directly on grid section ontology, and the coating of bottom can make grid section ontology and surface layer generate firm knot
It closes.The surface layer is coated in the surface of product, and effective protection grid section ontology, wearability are fired in the coating of bottom and surface layer
It greatly improves, extends the service life of grid section.
Embodiment 1
The present invention preparation method for sending out surface a kind of and firing the grid section of enamel oil reservoir is provided the following steps are included:
(1) sandblasting: the surface of grid section ontology is subjected to blasting treatment, improves the mechanical performance of grid section ontology, obtains grid section surface
Cleannes and roughness centainly are obtained, the adhesive force between grid section ontology and coating is increased；
(2) ingredient slurrying: solid abrasive lapping 15 minutes that liquid material is stirring evenly and then adding into homogenous quantities are slurried, and slurries are contained
Enter in slurry pool；
The liquid material includes mass fraction proportion are as follows: waterglass 75, the water 35 and sodium tripolyphosphate 7 that temperature is 60 DEG C；It is described
Solid material includes mass fraction proportion are as follows: aluminium oxide 15, calcium carbonate 3, chromium oxide 25, iron oxide 4, silica 40 and prodan
5；
(3) be stained with slurry: the grid section ontology of step (1) is completely immersed in the slurry pool of step (2), and the surface of grid section ontology is made to overwork slurry
Liquid；
(4) it dries: the grid section ontology that step (2) overworks slurries is put into drying in drying chamber, temperature control is at 50 DEG C, drying time
It is 24 hours, the grid section ontology for being coated with bottom is made；
(5) secondary to be stained with slurry: the grid section ontology of one layer of bottom will to be formed after step (4) drying, be completely immersed in the slurry of step (2) again
In liquid pool, the surface of grid section ontology is made to overwork slurries again, the grid section ontology that surface is overworked to slurries again is sent into drying chamber, and will
Drying room temperature control is dried 24 hours in 50 DEG C of environment, and grid section body surface forms one layer of surface layer；
(6) it fires: the later grid section ontology of step (5) drying being placed into high temperature kiln and is fired 2 hours through 390 DEG C；
(7) after the completion of firing, natural cooling；
(8) be packed in storage after the assay was approved, test stone: Cast Iron Surface forms the uniform refractory coating of a layer thickness, with a thickness of
1.5mm。
Embodiment 2: being carried out by above step completely, wherein
(2) ingredient slurrying: solid abrasive lapping 23 minutes that liquid material is stirring evenly and then adding into homogenous quantities are slurried, by slurries contain into
In slurry pool；
The liquid material includes mass fraction proportion are as follows: waterglass 80, the water 40 and sodium tripolyphosphate 9 that temperature is 70 DEG C；It is described
Solid material includes that mass fraction proportion is aluminium oxide 20, calcium carbonate 4, chromium oxide 28, iron oxide 5, silica 45 and prodan
7；
(4) and (5) bottom and the control of the baking temperature of surface layer are at 53 DEG C, and drying time is 24 hours；
(6) at 400 DEG C, the firing time is 2 hours for firing temperature control；
(8) be made the grid section ontology with refractory coating, refractory coating with a thickness of 2mm.
Embodiment 3: being carried out by above step completely, wherein
(2) ingredient slurrying: solid abrasive lapping 30 minutes that liquid material is stirring evenly and then adding into homogenous quantities are slurried, by slurries contain into
In slurry pool；The liquid material includes mass fraction proportion are as follows: waterglass 85, the water 45 and sodium tripolyphosphate that temperature is 80 DEG C
11；The solid material includes mass fraction proportion: for aluminium oxide 25, calcium carbonate 5, chromium oxide 32, iron oxide 7,50 and of silica
Prodan 9；
(4) and (5) bottom and the control of the baking temperature of surface layer are at 55 DEG C, and drying time is 24 hours；
(6) at 410 DEG C, the firing time is 2 hours for firing temperature control；
(8) be made the grid section ontology with refractory coating, be made the refractory coating with a thickness of 2.5mm.
Step (3) is stained with slurry and step (5) is secondary is stained with during slurry, needs hand to catch on the both ends of grid section ontology, by grid section sheet
Body invades in slurry pool completely, it is ensured that overworks slurries bubble-free completely in the surface of grid section ontology.Then, hand hooks the two of grid section ontology
End takes out it out of slurry pool, hangs on the stretcher being arranged in slurry pool.To overwork 4-5 root grid section on stretcher, with two fingers
Slurries extra on grid section were gently smoothed out with the fingers, two hands lift stretcher and exert oneself to shake the grid section for speckling with slurries, it is ensured that the slurry on grid section surface
Liquid layer is uniformly without dripping off.Later, two hand fingers trigger grid section, and grid section is placed on stoving rack, and adjacent grid section can not be close in
Together, to prevent adhesion, slurry is stained in completion.
Step (6) sintering procedure carries out in resistance-type heating furnace in embodiment, firstly, the grid section dried is put into electricity
Then the center of resistive heating furnace is powered to the resistance-type heating furnace, furnace temperature is made to be to slowly warm up to 100 DEG C with 50 DEG C/h,
Selection slow heating heating can effectively prevent the slurry on grid section surface to burst apart within the scope of 0-100 DEG C, then quickly be risen with 100 DEG C/h
Then temperature keeps the temperature 2h to 400 ± 10 DEG C, later, power-off stops heating, comes out of the stove wait be furnace-cooled to 80 DEG C or less, as fires and completes.
Grid section with refractory coating made from this method and common grid section performance comparison specific experiment number under the same conditions
According to as follows:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Common grid section | |
| Wearability | 0.164g | 0.173g | 0.182g | 0.223g |
| Corrosion resistance | 0.138g | 0.154g | 0.1492g | 0.278g |
| Service life | 20 months | 20.5 months | 21 months | 16 months |
The comb with refractory coating that the embodiment of the present invention 1, embodiment 2 and embodiment 3 produce is concluded that by upper table
For item compared with common grid section, the grid section wearability with refractory coating is strong, corrosion-resistant good, long service life.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (8)
1. a kind of refractory coating, it is characterised in that: the liquid material and solid material for being 1:1 including mass ratio, the liquid material stirring
It is added solid abrasive lapping 15-30 minutes after uniformly and refractory coating slurries is made；
The liquid material includes composition mass parts ratio are as follows: waterglass 75-85, the water 35-45 and trimerization phosphorus that temperature is 60-80 DEG C
Sour sodium 7-11；
The solid material includes composition mass parts ratio are as follows: aluminium oxide 15-25, calcium carbonate 3-5, chromium oxide 25-32, iron oxide 4-
7, silica 40-50 and prodan 5-9.
2. the grid section such as claim 1 refractory coating, including grid section ontology are fired in a kind of surface, it is characterised in that: the grid section
The surface of ontology, which is fired, one layer of refractory coating, and the refractory coating is inorganic material, with a thickness of 1.5-2.5mm.
3. grid section according to claim 2, it is characterised in that: the refractory coating with a thickness of 2mm.
4. grid section according to claim 3, it is characterised in that: the refractory coating includes bottom and surface layer, the bottom
It is arranged between the surface and surface layer of grid section ontology.
5. such as the preparation method of the described in any item grid sections of claim 2-4, it is characterised in that the following steps are included:
(1) blasting treatment sandblasting: is carried out on the surface of grid section ontology；
(2) ingredient slurrying: being stirring evenly and then adding into the solid material of mass ratio 1:1 for liquid material and grinds 15-30 minutes and is slurried,
Slurries are contained in slurry pool；
The liquid material includes composition mass parts ratio are as follows: waterglass 75-85, the water 35-45 and trimerization phosphorus that temperature is 60-80 DEG C
Sour sodium 7-11；The solid material includes composition mass parts ratio are as follows: aluminium oxide 15-25, calcium carbonate 3-5, chromium oxide 25-32, oxygen
Change iron 4-7, silica 40-50 and prodan 5-9；
(3) be stained with slurry: the grid section ontology of step (1) is completely immersed in the slurry pool of step (2), and the surface of grid section ontology is made to overwork slurry
Liquid；
(4) it dries: the grid section ontology that step (3) overworks slurries is put into drying in drying chamber；
(5) secondary slurry of being stained with: one layer of bottom is formed on the grid section ontology after step (4) drying, has the grid section ontology of bottom herein
It is put into the slurry pool of step (2), so that its surface is overworked slurries again, and the grid section ontology for overworking slurries again is placed into baking
It is dried in room, the grid section body surface after drying again forms one layer of surface layer；
(6) it fires: the later grid section ontology of step (5) drying being placed into heating furnace and is fired 2 hours through 390-410 DEG C；
(7) cooling: after the completion of grid section ontology is fired, natural cooling；
(8) it examines: being packed in storage after the surface examination of grid section ontology is qualified.
6. the preparation method of grid section according to claim 5, it is characterised in that: step (4) and step (5) are dried in drying chamber
Dry temperature is 50-55 DEG C, and drying time is 24 hours.
7. the preparation method of grid section according to claim 5, it is characterised in that: step (6) sintering procedure adds in resistance-type
It is carried out in hot stove, it is as follows to fire operation: the grid section ontology after drying again is put into resistance-type heating furnace, heated to resistance-type
Furnace energization increases in-furnace temperature: being first warming up to 100 DEG C with the speed of 50 DEG C/h, is then warming up to the speed of 100 DEG C/h
2h is kept the temperature after 390-410 DEG C, power-off stops heating, comes out of the stove to be cooled to 80 DEG C or less in the resistance-type heating furnace.
8. the preparation method of grid section according to claim 5, it is characterised in that: the test stone of step (8): grid section ontology
Surface forms the uniform refractory coating of a layer thickness, the refractory coating with a thickness of 1.5-2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811502213.9A CN109516819A (en) | 2018-12-10 | 2018-12-10 | Grid section of refractory coating and preparation method thereof is fired on a kind of refractory coating, surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811502213.9A CN109516819A (en) | 2018-12-10 | 2018-12-10 | Grid section of refractory coating and preparation method thereof is fired on a kind of refractory coating, surface |
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| Publication Number | Publication Date |
|---|---|
| CN109516819A true CN109516819A (en) | 2019-03-26 |
Family
ID=65795351
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|---|---|---|---|
| CN201811502213.9A Pending CN109516819A (en) | 2018-12-10 | 2018-12-10 | Grid section of refractory coating and preparation method thereof is fired on a kind of refractory coating, surface |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101698230A (en) * | 2009-10-24 | 2010-04-28 | 内蒙古科技大学 | Method for preparing surface composite sinterer grate bars |
| CN102010623A (en) * | 2010-11-16 | 2011-04-13 | 北方涂料工业研究设计院 | High temperature resistant and erosion resistant inorganic protective coating |
| CN102190480A (en) * | 2010-03-18 | 2011-09-21 | 刘新洲 | Wear-resistant coating of hot air tube, and preparation method thereof |
| CN104611634A (en) * | 2014-12-31 | 2015-05-13 | 桃江新兴管件有限责任公司 | Grate bar material of trolley of sinter machine and production method of grate bar material |
| CN107081941A (en) * | 2016-02-16 | 2017-08-22 | 中国科学院大连化学物理研究所 | Structure and its application of a kind of metal surface with thermal protection coating material |
-
2018
- 2018-12-10 CN CN201811502213.9A patent/CN109516819A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101698230A (en) * | 2009-10-24 | 2010-04-28 | 内蒙古科技大学 | Method for preparing surface composite sinterer grate bars |
| CN102190480A (en) * | 2010-03-18 | 2011-09-21 | 刘新洲 | Wear-resistant coating of hot air tube, and preparation method thereof |
| CN102010623A (en) * | 2010-11-16 | 2011-04-13 | 北方涂料工业研究设计院 | High temperature resistant and erosion resistant inorganic protective coating |
| CN104611634A (en) * | 2014-12-31 | 2015-05-13 | 桃江新兴管件有限责任公司 | Grate bar material of trolley of sinter machine and production method of grate bar material |
| CN107081941A (en) * | 2016-02-16 | 2017-08-22 | 中国科学院大连化学物理研究所 | Structure and its application of a kind of metal surface with thermal protection coating material |
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