CN112624775A - Preparation process of silicochromite refractory wear-resistant castable - Google Patents
Preparation process of silicochromite refractory wear-resistant castable Download PDFInfo
- Publication number
- CN112624775A CN112624775A CN202011529670.4A CN202011529670A CN112624775A CN 112624775 A CN112624775 A CN 112624775A CN 202011529670 A CN202011529670 A CN 202011529670A CN 112624775 A CN112624775 A CN 112624775A
- Authority
- CN
- China
- Prior art keywords
- refractory
- wear
- castable
- preparation process
- cast stone
- 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
Links
Images
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
-
- 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
-
- 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
- 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
- C04B2235/3427—Silicates other than clay, e.g. water glass
-
- 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
- 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
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/444—Halide containing anions, e.g. bromide, iodate, chlorite
- C04B2235/445—Fluoride containing anions, e.g. fluosilicate
-
- 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
- F27D2001/1605—Repairing linings
- F27D2001/161—Hot repair
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a preparation process of a silicochromite refractory wear-resistant castable in the technical field of refractory wear-resistant materials, aiming at the problem of safety and stability of bundled firework packages in the prior art, the invention provides the following scheme that firstly, crushed ferrochromium slag and cast stone powder are added with refractory mortar, a binder, water and sodium fluosilicate for stirring to prepare the castable for later use; then, preprocessing the laid object; finally, the prepared castable is distributed on the pretreated object, the silicochromite refractory wear-resistant castable prepared by the preparation process has the advantages of low cost, good thermal stability, effective corrosion resistance and wear resistance, good impact resistance and water flow scouring resistance, suitability for middle and low temperature areas in a kiln and accessory facilities thereof, long service life of a sintered furnace body and good practicability.
Description
Technical Field
The invention relates to the technical field of refractory wear-resistant materials, in particular to a preparation process of a silicochromite refractory wear-resistant castable.
Background
At present, raw coal hoppers of cyclone furnaces, opposed firing furnaces and fluidized bed boilers (separators, hearth water-cooled walls, horizontal flues, combustion chambers, air chambers and the like) in the thermal power industry, particularly inner villages of middle and low temperature parts such as cold ash hoppers and water seal tanks with serious water erosion and corrosion, and kilns and parts with serious erosion and abrasion in the metallurgy and cement industries need to be protected against fire and abrasion, the working temperature of the parts is generally below 1000 ℃, the service lives of the kilns and the accessory facilities can be effectively prolonged after the parts are subjected to fire-resistant and abrasion-resistant treatment, and at present, the parts are treated by adopting silicon carbide or high-alumina corundum castable materials.
The commonly used silicon carbide and high alumina corundum castings suffer from the following disadvantages:
1. the cost of raw materials is high;
2. only can be primarily condensed, and can not be sintered at medium and low temperature, so that the furnace body can not effectively resist corrosion, abrasion, impact, water flow scouring and the like, the service life of the furnace body is short, and generally is not more than three months;
3. the heat treatment is carried out in one week in the kiln, which increases the cost and causes misleading errors, thereby greatly hindering the use of the materials in the middle and low temperature areas of the kiln and the accessory facilities.
Disclosure of Invention
The invention provides a silicochromite refractory wear-resistant castable material, aiming at overcoming the defects that the existing silicon carbide castable material and high-alumina corundum castable material with high cost and poor thermal stability are used at medium and low temperatures.
In order to achieve the purpose, the invention provides the following technical scheme:
a silicochromite refractory wear-resistant castable comprises the following steps:
s1, adding refractory mortar, a binder, water and sodium fluosilicate into the crushed ferrochromium slag and the cast stone powder, and stirring to prepare a castable for later use;
s2, preprocessing the laid object;
and S3, distributing the castable prepared in the S1 onto the object pretreated in the S2.
Preferably, in S1, the ferrochromium slag is crushed into coarse, medium and fine aggregates and fine powder, the particle size of the coarse aggregate is 5-8mm, the particle size of the medium aggregate is 1-3mm, the particle size of the fine aggregate is 0-1mm, the particle size of the fine powder is more than or equal to 50 meshes, and the mixing ratio of the coarse aggregate, the medium aggregate, the fine aggregate and the fine powder is 3:7:2: 2.
Preferably, in S1, the binder is water glass.
Preferably, in S1, the coarse, medium and fine aggregates and the fine powder are mixed with the cast stone powder to form the silicochrome material, the particle size range of the cast stone powder is more than or equal to 100 meshes, and the mixing ratio of the ferrochromium slag to the cast stone powder is 14: 1.
Preferably, in S1, the silico-chromium material and the refractory mortar are uniformly mixed and packed into a mixture, the particle size range of the refractory mortar is more than or equal to 80 meshes, and the mixing ratio of the ferrochromium slag to the cast stone powder to the refractory mortar is 14:1: 1.
Preferably, in S1, water glass is added into the mixture and stirred uniformly, and the mixing ratio of the ferrochromium slag to the cast stone powder, the refractory mortar and the water glass is 14:1:1: 3.
Preferably, in S1, sodium fluosilicate is added into the mixture added with the water glass and the mixture is stirred uniformly, and the mixing ratio of the ferrochromium slag to the cast stone powder, the refractory mortar, the water glass and the sodium fluosilicate is 14:1:1:3: 1.
Preferably, in S1, adding a mixture of water glass and sodium fluosilicate in a mass ratio of 19: 1, adding water and stirring uniformly.
Preferably, in S2, the pretreatment includes degreasing, derusting, and dedusting the applied object.
Preferably, in S3, the castable prepared in S1 is applied to the surface of the object pretreated in S2 by laying, pouring, ramming, and repairing, and is compacted and then trowelled.
Compared with the existing silicon carbide castable and high-alumina corundum castable, the invention has the beneficial effects that:
1. the silicochromite refractory wear-resistant castable prepared by the preparation process can be fired at low temperature, is beneficial to molding of the castable and can be stably attached to a poured object, so that the refractory, wear-resistant and scouring-resistant performances of middle and low temperature parts and accessory equipment in a kiln are improved, and the service life of a furnace body is prolonged by more than 5-10 times;
2. the silico-chrome refractory wear-resistant castable prepared by the preparation process has high compactness, good adhesive force, good thermal shock resistance and no cracking, and effectively protects a furnace body and accessory facilities thereof;
3. the silico-chrome refractory wear-resistant castable prepared by the preparation process disclosed by the invention utilizes waste materials as raw materials, fully utilizes resources, reduces the manufacturing cost and achieves the purposes of energy conservation and environmental protection;
4. the silicochromite refractory wear-resistant castable prepared by the preparation process disclosed by the invention does not need oven heat treatment, maintenance and natural drying, greatly improves the preparation efficiency, is simple and convenient in construction process, and has good practicability and popularization and application space.
Drawings
FIG. 1 is a schematic view of a preparation process flow of the silicochromite refractory wear-resistant castable of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in the attached figure 1, the preparation process of the silicochromite refractory wear-resistant castable specifically comprises the following steps:
s1, mixing the crushed ferrochromium slag and the cast stone powder with refractory mortar, water glass, water and sodium fluosilicate, and stirring to prepare a casting material for later use;
in S1, the ferrochrome slag is crushed into coarse, medium and fine aggregates and fine powder, the particle size of the coarse aggregates is 5-8mm, the particle size of the medium aggregates is 1-3mm, the particle size of the fine aggregates is 0-1mm, the particle size of the fine powder is more than or equal to 50 meshes, and the mixing ratio of the coarse aggregates, the medium aggregates, the fine aggregates and the fine powder is 3:7:2: 2;
in S1, mixing coarse, medium and fine aggregates and fine powder with cast stone powder to obtain a silicochromic material, wherein the grain size range of the cast stone powder is more than or equal to 100 meshes, and the mixing ratio of ferrochrome slag to the cast stone powder is 14: 1;
in S1, uniformly mixing the silicochrome with refractory mortar, and pouring into a mixture, wherein the grain size range of the refractory mortar is more than or equal to 80 meshes, and the mixing ratio of the ferrochromium slag to the cast stone powder to the refractory mortar is 14:1: 1;
in S1, adding water glass into the mixture, and uniformly stirring, wherein the mixing ratio of the ferrochromium slag to the cast stone powder to the refractory mortar to the water glass is 14:1:1: 3;
in S1, adding sodium fluosilicate into the mixture added with the water glass, and uniformly stirring, wherein the mixing ratio of the ferrochromium slag to the cast stone powder, the refractory mortar, the water glass and the sodium fluosilicate is 14:1:1:3: 1;
in S1, adding a mixture of water glass and sodium fluosilicate according to a mass ratio of 19: 1, adding water and stirring uniformly.
S2, preprocessing the laid object;
in S2, the pretreatment includes degreasing, removing rust, and removing dust of the applied object.
S3, distributing the castable prepared in the S1 on the object pretreated in the S2;
in S3, the casting material prepared in S1 is applied to the surface of the object pretreated in S2 by laying, casting, ramming and repairing, and is tamped and leveled.
A silicochromite refractory wear-resistant castable is prepared from the following components in parts by weight: 70 parts of coarse, medium and fine powder ferrochromium slag, 5 parts of cast stone powder (aka diabase), 5 parts of refractory mortar, 10 parts of water glass, 5 parts of sodium fluosilicate and 5 parts of water, and the preparation process comprises the following steps:
the preparation method comprises the following steps: firstly, mixing the coarse, medium and fine aggregates and fine ferrochromium slag which are crushed into coarse, medium and fine powders with the cast stone powder and the refractory mortar according to the proportion, adding the binder, the water and the sodium fluosilicate according to the proportion, and uniformly stirring for later use;
the construction process comprises the following steps: the applied object is subjected to oil removal, rust removal and dust removal treatment, the castable prepared by the preparation method is quickly applied or poured, rammed and repaired on the surface of the applied object, and the object is tamped and leveled, is quickly condensed without cracking, and can be ignited for operation without drying and natural drying.
The ferrochrome slag is an industrial waste, the main components of the ferrochrome slag are silicon dioxide, chromium oxide, magnesium oxide, aluminum oxide and iron oxide, and the ferrochrome slag is crushed into coarse, medium and fine aggregates and fine powder, so that the ferrochrome slag has the effects of fire resistance, wear resistance and scouring resistance; the cast stone powder and the refractory mortar have the functions of enhancing compactness and bonding, and the cast stone powder, also called diabase powder, is prepared by taking a raw material for producing excellent cast stone and diabase as a main raw material, crystallizing the cast stone, crushing and ball-milling the cast stone; the binder plays a role in binding and increasing the adhesive force of the castable, and reacts with sodium fluosilicate to quickly condense the castable.
The castable prepared by the preparation process mainly comprises industrial waste ferrochrome slag, the main components of the castable comprise carbon dioxide, chromium oxide, magnesium oxide, ferric oxide and aluminum trioxide, the castable can be integrally formed on the inner wall of an object in a kiln in a low temperature range, has high compactness, temperature resistance, wear resistance, impact resistance and water flushing resistance, the specific range of the medium temperature and the low temperature is below 900 ℃, the thermal shock resistance is good, cracking is avoided, a furnace is not required to be baked, the service life of the kiln and accessory equipment can be effectively prolonged, the cost is low, and energy is saved and consumption is reduced.
The castable prepared by the invention can be sintered at medium and low temperature, has no crack, is corrosion-resistant and wear-resistant, is waterproof and scour-resistant, and can effectively prolong the service life of a furnace body and accessory equipment by more than 5-10 times; the preparation process has the advantages of wide raw material source, full utilization of waste materials, great reduction of preparation cost, realization of the purposes of energy conservation and environmental protection, simple and convenient construction process and wider application range; the preparation process disclosed by the invention does not need oven heat treatment, does not need maintenance and natural drying, can be operated at any time in an oven, effectively improves the preparation efficiency and has good practicability.
The silicochromite refractory wear-resistant castable prepared by the invention passes the detection of refractory material quality supervision, the drying compressive strength (110 ℃ +/-5 ℃ for 24 h) is 30MPa, the drying flexural strength (110 ℃ +/-5 ℃ for 24 h) is 5MPa, the fired compressive strength (800 ℃) for 3 h) is 45MPa, the fired linear change rate (1100 ℃) is-0.09%, the refractoriness is 1100 ℃, the water content is 5%, the heat conductivity coefficient (500 ℃) is 0.75W/m.k, the product quality inspection is qualified, the comprehensive judgment is qualified, and the silicochromite refractory wear-resistant castable prepared by the preparation process has wide application in the thermal power industry, such as a cold ash hopper, a water seal tank, a coal hopper, a coal economizer lower collection box, a preheater, furnace top sealing, furnace top repairing, a separator, a combustion chamber, an air chamber and the like of a sulfur fluidized bed, a separator, a combustion chamber and the like, The air chamber, the high screen, the ash cooling bucket, the midline barrel, the horizontal flue and the like.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The preparation process of the silicochromite refractory wear-resistant castable is characterized by comprising the following steps of:
s1, adding refractory mortar, a binder, water and sodium fluosilicate into the crushed ferrochromium slag and the cast stone powder, and stirring to prepare a castable for later use;
s2, preprocessing the laid object;
and S3, distributing the castable prepared in the S1 onto the object pretreated in the S2.
2. The preparation process of the silico-chromite refractory wear-resistant castable according to claim 1, characterized in that in S1, the ferrochrome slag is crushed into coarse, medium and fine grade aggregates and fine powder, the particle size of the coarse aggregate is 5-8mm, the particle size of the medium aggregate is 1-3mm, the particle size of the fine aggregate is 0-1mm, the particle size of the fine powder is not less than 50 meshes, and the mixing ratio of the coarse aggregate, the medium aggregate, the fine aggregate and the fine powder is 3:7:2: 2.
3. The process of claim 2, wherein in S1, the binder is water glass.
4. The preparation process of the silico-chromium refractory wear-resistant castable according to claim 3, characterized in that in S1, coarse, medium and fine aggregates and fine powder are mixed with cast stone powder to form silico-chromium material, the particle size range of the cast stone powder is more than or equal to 100 meshes, and the mixing ratio of ferrochromium slag to the cast stone powder is 14: 1.
5. The preparation process of the silicochromic refractory and wear-resistant castable according to claim 4, wherein in S1, the silicochromic material and refractory mortar are uniformly mixed and poured into a mixture, the particle size range of the refractory mortar is more than or equal to 80 meshes, and the mixing ratio of the ferrochromium slag to the cast stone powder to the refractory mortar is 14:1: 1.
6. The preparation process of the silico-chromium refractory and wear-resistant castable material according to claim 5, characterized in that in S1, water glass is added into the mixture and stirred uniformly, and the mixing ratio of the ferrochromium slag to the cast stone powder, the refractory mortar and the water glass is 14:1:1: 3.
7. The preparation process of the silico-chromium refractory and wear-resistant castable material according to claim 6, wherein in S1, sodium fluosilicate is added into the mixture added with water glass and stirred uniformly, and the mixing ratio of the ferrochromium slag to the cast stone powder, the refractory mortar, the water glass and the sodium fluosilicate is 14:1:1:3: 1.
8. The preparation process of the silicochromite refractory wear-resistant castable according to claim 7, wherein in S1, in the mixture added with the water glass and the sodium fluosilicate, the weight ratio of the mixture is 19: 1, adding water and stirring uniformly.
9. The preparation process of the silicochromia refractory and wear-resistant castable material according to claim 8, wherein in S2, the pretreatment includes degreasing, derusting and dedusting the applied object.
10. The process of claim 9, wherein in step S3, the castable prepared in step S1 is applied, poured, rammed, repaired to the surface of the pretreated object in step S2, and rammed and leveled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011529670.4A CN112624775A (en) | 2020-12-22 | 2020-12-22 | Preparation process of silicochromite refractory wear-resistant castable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011529670.4A CN112624775A (en) | 2020-12-22 | 2020-12-22 | Preparation process of silicochromite refractory wear-resistant castable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112624775A true CN112624775A (en) | 2021-04-09 |
Family
ID=75321197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011529670.4A Pending CN112624775A (en) | 2020-12-22 | 2020-12-22 | Preparation process of silicochromite refractory wear-resistant castable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112624775A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114149267A (en) * | 2021-11-18 | 2022-03-08 | 偏关县晋电化工有限责任公司 | Slag hole protection material for submerged arc furnace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1287372A (en) * | 1970-11-12 | 1972-08-31 | Tsni I Pexi Promy Zdany I Soor | Acid-resistant materials |
| CN102731113A (en) * | 2011-04-02 | 2012-10-17 | 湖南省新化瑞达高温防磨材料厂 | Silicon-magnesium fireproof wear-resistant composite castable |
| CN105541359A (en) * | 2016-01-18 | 2016-05-04 | 武汉科技大学 | Refractory casting material for ladle splash guard and preparation method of refractory casting material |
-
2020
- 2020-12-22 CN CN202011529670.4A patent/CN112624775A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1287372A (en) * | 1970-11-12 | 1972-08-31 | Tsni I Pexi Promy Zdany I Soor | Acid-resistant materials |
| CN102731113A (en) * | 2011-04-02 | 2012-10-17 | 湖南省新化瑞达高温防磨材料厂 | Silicon-magnesium fireproof wear-resistant composite castable |
| CN105541359A (en) * | 2016-01-18 | 2016-05-04 | 武汉科技大学 | Refractory casting material for ladle splash guard and preparation method of refractory casting material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114149267A (en) * | 2021-11-18 | 2022-03-08 | 偏关县晋电化工有限责任公司 | Slag hole protection material for submerged arc furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106966740B (en) | Waste incinerator calcium hexaluminate/silicon carbide castable and preparation method thereof | |
| CN101555146B (en) | Refractory castable composition with heat insulation and wear resistance and application thereof | |
| CN102896308B (en) | Cold-state repair method for torpedo ladle impact area | |
| CN109851333B (en) | Nano sol combined wear-resisting plate for blast furnace main iron runner and preparation method and application thereof | |
| CN110156445B (en) | High-strength wear-resistant castable for rotary hearth furnace and preparation method thereof | |
| CN112624775A (en) | Preparation process of silicochromite refractory wear-resistant castable | |
| CN109111209B (en) | Microcrystal material for cement kiln | |
| CZ2019602A3 (en) | Composite with high heat accumulation | |
| CN103922759B (en) | Preparation method of silicon carbide wear-resistant fireproof wind-guiding wall crossbeam and wind-guiding wall brick | |
| CN101386541A (en) | Anti-acid(alkalis) etching abrasion-proof and refractory pouring material | |
| JP2016150854A (en) | Monolithic refractory for blast furnace trough | |
| CN106977187A (en) | Mineral hot furnace, cast with multi-functional moldable and preparation method thereof | |
| CN110950670A (en) | Wear-resistant heat-resistant anticorrosive lining coating for power plant boiler | |
| CN102731113B (en) | Silicon-magnesium fireproof wear-resistant composite castable | |
| CN105801147B (en) | A kind of method of hot patching fish torpedo ladle | |
| JP2000203952A (en) | Dense slip casting refractory composition and its execution method | |
| CN106431427A (en) | Zirconium-chromium-silicon carbide wear-resistant corrosion-resistant plastic refractory material for circulating fluidized bed boiler | |
| FI63926C (en) | FERROKROMSLAGG FOER AENDMAOL SOM KRAEVER ELDFASTHET OCH MEKANISK HAOLLFASTHET | |
| Montgomery | Heat-resisting and refractory concretes | |
| Tukhareli et al. | Methodological approaches in assessing the possibility of using waste electrocorundum materials in concrete compositions | |
| CN105418073A (en) | Preparation method of super wear-resistant ceramic substrate for pure low temperature waste heat power generation | |
| Khlystov et al. | Claydite dust-a unique technogenic raw material for heat-resistant concretes production | |
| CN104944988B (en) | Garbage disposal cement rotary kiln corrosion-resistant common brick and preparation process | |
| Pyrikov et al. | Certain aspects in the use of refractory materials and their waste products in industry | |
| CN1036194A (en) | Alumina carbon brick and making thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210409 |