CN107244937A - A kind of forming method of precision castings smelting furnace gainster and furnace lining - Google Patents
A kind of forming method of precision castings smelting furnace gainster and furnace lining Download PDFInfo
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- CN107244937A CN107244937A CN201710543666.5A CN201710543666A CN107244937A CN 107244937 A CN107244937 A CN 107244937A CN 201710543666 A CN201710543666 A CN 201710543666A CN 107244937 A CN107244937 A CN 107244937A
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- 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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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D1/1694—Breaking away the lining or removing parts thereof
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
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- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B2014/0843—Lining or casing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/13—Smelting
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- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
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Abstract
A kind of precision castings smelting furnace gainster, is related to precision casting technology field, is made up of following raw material：60 80 parts of quartz sand, 20 30 parts of silica flour, 68 parts of boric acid, 13 parts of waterglass, 10 20 parts of fire clay, 35 parts of carborundum, 13 parts of fine chrome mine, 24 parts of ceramic fibre, 35 parts of mineral fibres, appropriate amount of water；Beneficial effects of the present invention are：Of the invention novel in design, the composition of raw materials of use is scientific and reasonable, it is ensured that outside the abundant cooperation between raw material, the gainster superior performance of preparation, fire-resistant abrasion-proof, and using effect is notable, while during shaping, Multilevel method, it is ensured that furnace lining fastening performance is easy to promote and used.
Description
Technical field
The present invention relates to precision casting technology field, and in particular to a kind of shaping side of precision castings smelting furnace gainster and furnace lining
Method.
Background technology
Casting is a kind of history of mankind's grasp than metal heat processing technique, about 6000 earlier.China about exists
B.C. 1700~it is first 1000 between have been enter into heyday of bronze casting, technique and reached at a relatively high level.Casting
It is that liquid metals is cast in the casting cavity being adapted with part shape, after after its cooled and solidified, to obtain part or hair
The method of base.
When being cast in progress, processed by wax-pattern processed, wax pattern welding, dewaxing, roasting, melting, cast, cleaning and post processing
Complete, be prepares follow-up high-quality precision castings basic, wherein melting wherein the standard operation of any one link in casting
The refining stage is the most key, and it is to ensure that the liquefaction of metal material is basic, is generally all carried out in a furnace, due to the sheet of smelting furnace
Body feature, in actual operation, must carry out corresponding furnace lining addition and use for the inwall of smelting furnace, therefore in order to ensure stove
Hard, the wear-resisting and resistance to elevated temperatures of lining, it will usually carry out corresponding gainster and use, but matched in current gainster
In, because the selection of raw material is not clear and definite enough, cause the poor performance that gainster is actual, and gainster is actual when being molded, and also has very
Big operation lack of standard energy, directly results in the limitation of smelting furnace melting, the actual quality of the actual follow-up cast member of influence.
The content of the invention：
The technical problems to be solved by the invention are to provide a kind of technical specification, are formulated rationally, it is convenient and prolonged to be molded
Durable precision castings smelting furnace gainster and the forming method of furnace lining.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of precision castings smelting furnace gainster, it is characterised in that be made up of following raw material：
60-80 parts of quartz sand, 20-30 parts of silica flour, 6-8 parts of boric acid, 1-3 parts of waterglass, 10-20 parts of fire clay, carbonization
3-5 parts of silicon, 1-3 parts of fine chrome mine, 2-4 parts of ceramic fibre, 3-5 parts of mineral fibres, appropriate amount of water；
The preferred component of each raw material is：
70 parts of quartz sand, 25 parts of silica flour, 7 parts of boric acid, 2 parts of waterglass, 15 parts of fire clay, 4 parts of carborundum, fine chrome mine 2
Part, 3 parts of ceramic fibre, 4 parts of mineral fibres, appropriate amount of water；
Described quartz sand particle fineness is 10-20 mesh, and described silica flour grain fineness is 250-270 mesh；
Described fire clay is prepared from after being compounded using 6 parts of alumine, 2 parts of magnesia, 5 parts of silica；
Described mineral fibres is prepared from using 15 parts of asbestos, 3 parts of silica, 6 parts of compoundings of aluminum oxide；
Above-mentioned precision castings smelting furnace gainster is in the preparation：It is first according to aforementioned proportion and weighs each group, then by the quartz of weighing
Sand, with reference to the dry-mixed stirring of silica flour, waterglass and fire clay, obtain premix；Finally remaining load weighted raw material is added again
In the premix of gained, dry-mixed stirring adds water wet mixing and stirs into paste and produces.
Use above-mentioned gainster carry out the method for furnace lining shaping for, it is characterised in that comprise the steps：
1) old furnace lining is all removed to the induction coil position in smelting furnace；
2) layer of glass cloth is applied along induction coil inwall；
3) the paste gainster after above-mentioned preparation is carried out into layering to make firm by ramming, total layer control adds the pine of material every time at 3-4 layers
Thickness control is dissipated in 30-40mm；
4) continue layering to make firm by ramming, until gainster, to fire door, and when being made firm by ramming, when being connected with each other between every layer, is adopted
With drill rod upper strata carry out loosen, and with being fully connected between layers, you can realize shaping.
Beneficial effects of the present invention are：Of the invention novel in design, the composition of raw materials of use is scientific and reasonable, it is ensured that between raw material
Abundant cooperation outside, the gainster superior performance of preparation, fire-resistant abrasion-proof, using effect significantly, while during shaping, at multilayer
Reason, it is ensured that furnace lining fastening performance, is easy to promote and uses.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
Embodiment 1
A kind of precision castings smelting furnace gainster, is made up of following raw material：
Quartz sand 60kg, silica flour 20kg, boric acid 6kg, waterglass 1kg, fire clay 10kg, carborundum 3kg, fine chrome mine
1kg, ceramic fibre 2kg, mineral fibres 3kg, appropriate amount of water；
The preferred component of each raw material is：
Quartz sand 70kg, silica flour 25kg, boric acid 7kg, waterglass 2kg, fire clay 15kg, carborundum 4kg, fine chrome mine
2kg, ceramic fibre 3kg, mineral fibres 4kg, appropriate amount of water；
Described quartz sand particle fineness is 10 mesh, and described silica flour grain fineness is 250-270 mesh；
Described fire clay is prepared from after being compounded using alumine 6kg, magnesia 2kg, silica 5kg；
Described mineral fibres is prepared from using asbestos 15kg, silica 3kg, aluminum oxide 6kg compoundings；
Above-mentioned precision castings smelting furnace gainster is in the preparation：It is first according to aforementioned proportion and weighs each group, then by the quartz of weighing
Sand, with reference to the dry-mixed stirring of silica flour, waterglass and fire clay, obtain premix；Finally remaining load weighted raw material is added again
In the premix of gained, dry-mixed stirring adds water wet mixing and stirs into paste and produces.
Above-mentioned gainster is used to carry out the method for furnace lining shaping to comprise the steps：
1) old furnace lining is all removed to the induction coil position in smelting furnace；
2) layer of glass cloth is applied along induction coil inwall；
3) the paste gainster after above-mentioned preparation is carried out into layering to make firm by ramming, total layer control adds the pine of material every time at 3-4 layers
Thickness control is dissipated in 30mm；
4) continue layering to make firm by ramming, until gainster, to fire door, and when being made firm by ramming, when being connected with each other between every layer, is adopted
With drill rod upper strata carry out loosen, and with being fully connected between layers, you can realize shaping.
Embodiment 2
A kind of precision castings smelting furnace gainster, is made up of following raw material：
Quartz sand 80kg, silica flour 30kg, boric acid 8kg, waterglass 3kg, fire clay 20kg, carborundum 5kg, fine chrome mine
3kg, ceramic fibre 4kg, mineral fibres 5kg, appropriate amount of water；
The preferred component of each raw material is：
Quartz sand 70kg, silica flour 25kg, boric acid 7kg, waterglass 2kg, fire clay 15kg, carborundum 4kg, fine chrome mine
2kg, ceramic fibre 3kg, mineral fibres 4kg, appropriate amount of water；
Described quartz sand particle fineness is 20 mesh, and described silica flour grain fineness is 250-270 mesh；
Described fire clay is prepared from after being compounded using alumine 6kg, magnesia 2kg, silica 5kg；
Described mineral fibres is prepared from using asbestos 15kg, silica 3kg, aluminum oxide 6kg compoundings；
Above-mentioned precision castings smelting furnace gainster is in the preparation：It is first according to aforementioned proportion and weighs each group, then by the quartz of weighing
Sand, with reference to the dry-mixed stirring of silica flour, waterglass and fire clay, obtain premix；Finally remaining load weighted raw material is added again
In the premix of gained, dry-mixed stirring adds water wet mixing and stirs into paste and produces.
Above-mentioned gainster is used to carry out the method for furnace lining shaping to comprise the steps：
1) old furnace lining is all removed to the induction coil position in smelting furnace；
2) layer of glass cloth is applied along induction coil inwall；
3) the paste gainster after above-mentioned preparation is carried out into layering to make firm by ramming, total layer control adds the pine of material every time at 3-4 layers
Thickness control is dissipated in 40mm；
4) continue layering to make firm by ramming, until gainster, to fire door, and when being made firm by ramming, when being connected with each other between every layer, is adopted
With drill rod upper strata carry out loosen, and with being fully connected between layers, you can realize shaping.
Embodiment 3
A kind of precision castings smelting furnace gainster, is made up of following raw material：
Quartz sand 70kg, silica flour 25kg, boric acid 7kg, waterglass 2kg, fire clay 15kg, carborundum 4kg, fine chrome mine
2kg, ceramic fibre 3kg, mineral fibres 4kg, appropriate amount of water；
The preferred component of each raw material is：
Quartz sand 70kg, silica flour 25kg, boric acid 7kg, waterglass 2kg, fire clay 15kg, carborundum 4kg, fine chrome mine
2kg, ceramic fibre 3kg, mineral fibres 4kg, appropriate amount of water；
Described quartz sand particle fineness is 15 mesh, and described silica flour grain fineness is 250-270 mesh；
Described fire clay is prepared from after being compounded using alumine 6kg, magnesia 2kg, silica 5kg；
Described mineral fibres is prepared from using asbestos 15kg, silica 3kg, aluminum oxide 6kg compoundings；
Above-mentioned precision castings smelting furnace gainster is in the preparation：It is first according to aforementioned proportion and weighs each group, then by the quartz of weighing
Sand, with reference to the dry-mixed stirring of silica flour, waterglass and fire clay, obtain premix；Finally remaining load weighted raw material is added again
In the premix of gained, dry-mixed stirring adds water wet mixing and stirs into paste and produces.
Above-mentioned gainster is used to carry out the method for furnace lining shaping to comprise the steps：
1) old furnace lining is all removed to the induction coil position in smelting furnace；
2) layer of glass cloth is applied along induction coil inwall；
3) the paste gainster after above-mentioned preparation is carried out into layering to make firm by ramming, total layer control adds the pine of material every time at 3-4 layers
Thickness control is dissipated in 35mm；
4) continue layering to make firm by ramming, until gainster, to fire door, and when being made firm by ramming, when being connected with each other between every layer, is adopted
With drill rod upper strata carry out loosen, and with being fully connected between layers, you can realize shaping.
It is after smelting furnace furnace lining shaping and existing to be carried out using the gainster of the invention prepared and using gainster of the present invention below
There is the performance comparision parameter list between the common furnace lining in technology：
| Refractoriness (DEG C) | Abrasion resistance (Mohs' hardness) | The mm/a of resistance to erosion degree | |
| The technology of the present invention | 2000-3000 | 8.55 | 25 |
| Prior art | 1580-1770 | 6.85 | 61 |
Can significantly be reflected by upper table, the furnace lining in present techniques more in the prior art, refractoriness, abrasion resistance and
Resistance to erosion degree is higher by furnace lining of the prior art.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. a kind of precision castings smelting furnace gainster, it is characterised in that be made up of following raw material：
60-80 parts of quartz sand, 20-30 parts of silica flour, 6-8 parts of boric acid, 1-3 parts of waterglass, 10-20 parts of fire clay, carborundum 3-5
Part, 1-3 parts of fine chrome mine, 2-4 parts of ceramic fibre, 3-5 parts of mineral fibres, appropriate amount of water.
2. a kind of precision castings smelting furnace gainster according to claim 1, it is characterised in that the preferred component of each raw material is：
70 parts of quartz sand, 25 parts of silica flour, 7 parts of boric acid, 2 parts of waterglass, 15 parts of fire clay, 4 parts of carborundum, 2 parts of fine chrome mine, ceramics are fine
3 parts of dimension, 4 parts of mineral fibres, appropriate amount of water.
3. a kind of precision castings smelting furnace gainster according to claim 1, it is characterised in that：Described quartz sand particle fineness
For 10-20 mesh, described silica flour grain fineness is 250-270 mesh.
4. a kind of precision castings smelting furnace gainster according to claim 1, it is characterised in that：Described fire clay uses high alumina
It is prepared from after 6 parts of alumina, 2 parts of magnesia, 5 parts of compoundings of silica.
5. a kind of precision castings smelting furnace gainster according to claim 1, it is characterised in that：Described mineral fibres uses stone
15 parts of cotton, 3 parts of silica, 6 parts of compoundings of aluminum oxide are prepared from.
6. a kind of method that gainster carries out smelting furnace furnace lining shaping in use claim 1, it is characterised in that including following steps
Suddenly：
1) old furnace lining is all removed to the induction coil position in smelting furnace；
2) layer of glass cloth is applied along induction coil inwall；
3) the paste gainster after above-mentioned preparation is carried out into layering to make firm by ramming, total layer control adds the loose thickness of material every time at 3-4 layers
Degree control is in 30-40mm；
4) continue layering to make firm by ramming, until gainster is to fire door, and when being made firm by ramming, when being connected with each other between every layer, using steel
Pricker loosens the progress on upper strata, and with being fully connected between layers, you can realize shaping.
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| CN201710543666.5A CN107244937A (en) | 2017-07-05 | 2017-07-05 | A kind of forming method of precision castings smelting furnace gainster and furnace lining |
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| CN201710543666.5A CN107244937A (en) | 2017-07-05 | 2017-07-05 | A kind of forming method of precision castings smelting furnace gainster and furnace lining |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109503184A (en) * | 2018-12-29 | 2019-03-22 | 云南永昌硅业股份有限公司 | A kind of dry type high temperature resistant gainster and the preparation method and application thereof |
| CN110054435A (en) * | 2019-05-05 | 2019-07-26 | 安徽龙泉硅材料有限公司 | A kind of sodium metasilicate processing production method of smelting furnace furnace body wadding |
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| CN111908907A (en) * | 2020-08-11 | 2020-11-10 | 长兴鑫原耐火材料科技有限公司 | High-temperature-resistant crucible and manufacturing process thereof |
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