CS203198B2 - Insulating material,especially for insulating sheets for moulds for steel ingots - Google Patents
Insulating material,especially for insulating sheets for moulds for steel ingots Download PDFInfo
- Publication number
- CS203198B2 CS203198B2 CS784992A CS499278A CS203198B2 CS 203198 B2 CS203198 B2 CS 203198B2 CS 784992 A CS784992 A CS 784992A CS 499278 A CS499278 A CS 499278A CS 203198 B2 CS203198 B2 CS 203198B2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- weight
- insulating
- weight percent
- insulating material
- parts
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 12
- 239000010959 steel Substances 0.000 title claims description 12
- 239000011810 insulating material Substances 0.000 title claims description 11
- 239000004005 microsphere Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 3
- 239000011347 resin Substances 0.000 claims abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000292 calcium oxide Substances 0.000 claims description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 3
- 230000009970 fire resistant effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
- C04B18/082—Cenospheres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/06—Ingot moulds or their manufacture
- B22D7/10—Hot tops therefor
- B22D7/102—Hot tops therefor from refractorial material only
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing Of Solid Wastes (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Thermal Insulation (AREA)
- Inorganic Insulating Materials (AREA)
- Building Environments (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
Description
Vynález se týká izolační hmoty, vhodné zejména na izolační desky pro formy na ocelové ingoty. Tato hmota je vhodná zejména jako izolační vrstva pro desky používané pro zarovnání horní vnitřní části ingotové formy při odlévání ocelových ingotů.The invention relates to an insulating material, particularly suitable for insulating boards for steel ingot molds. This mass is particularly suitable as an insulating layer for plates used to align the upper inner part of the ingot mold when casting steel ingots.
Tepelně izolující desky, známé již z patentu NSR č. 2 007196, sestávají z vrstvy mající izolační vlastnosti a z další exothermické vrstvy mající rovněž ohnivzdorné vlastnosti. Izolační hmota je vytvořena z jednotné složky sestávající z přírodní rudy O zrnitosti v rozmezí 1 až 5 mm v množství 20 až 60 hmotnostních %, organické vláknité látky v množství 1 až 8 hmotnostních %, ohnivzdorného porézního materiálu o zrnitosti 1 až 5 mm v množství 5 až 20 hmotnostních '% a organického pojivá v množství 3 až 12 hmotnostních %.The thermally insulating panels already known from German Patent No. 2 007196 consist of a layer having insulating properties and another exothermic layer also having fireproof properties. The insulating material is formed from a uniform component consisting of natural ore having a grain size of 1 to 5 mm in an amount of 20 to 60% by weight, an organic fibrous substance in an amount of 1 to 8% by weight, a fire-resistant porous material up to 20% by weight and organic binder in an amount of 3 to 12% by weight.
Hlavní složky takovéto izolační hmoty jsou přírodní ruda a ohnivzdorný porézní materiál, což přispívá к dalšímu zvýšení výrobní ceny oceli. Uvedená izolační látka má kromě toho špatné izolační vlastnosti.The main components of such an insulating material are natural ore and a fireproof porous material, which contributes to a further increase in the cost of production of steel. Furthermore, the insulating material has poor insulating properties.
Tyto nedostatky jsou z převážné části odstraněny u izolační hmoty, zejména na izolační desky pro formy na ocelové in2 goty, obsahující organické pojivo podle vynálezu.These drawbacks are largely eliminated with the insulating material, in particular the insulating boards for steel insect molds containing the organic binder according to the invention.
Podstata vynálezu spočívá v tom, že izolační hmota obsahuje (a) 85 až 97 hmotnostních dílů mikrosféry, která je produktem využití elektrárenských popílků, má formu tenkostěnných mikrokuliček izolovaných z uvedených elektrárenských popílků, je naplněna plyny a obsahuje 40 až 60 hmotnostních % kysličníku křemičitého, 26 až 34 hmotnostních % kysličníku hlinitého, 4 až 14 hmotnostních % kysličníku železitého, 1,3 až 6 hmotnostních % kysličníku vápenatého a kysličníku hořečnatého a 0,5 až 6 hmotnostních % kysličníku draselného a kysličníku sodného, a (b) 3 až 15 hmotnostních dílů organické pryskyřice, přičemž pro suché mikrosféry se používá fenolformaldehydové pryskyřice a pro vlhké mikrosféry se používá močovinové pryskyřice.SUMMARY OF THE INVENTION The insulating material comprises (a) 85 to 97 parts by weight of a microsphere which is the product of power plant ash utilization, is in the form of thin-walled microspheres isolated from said power plant ash, filled with gases and contains 40 to 60 weight percent silica, 26 to 34% by weight of alumina, 4 to 14% by weight of iron oxide, 1.3 to 6% by weight of calcium oxide and magnesium oxide, and 0.5 to 6% by weight of potassium oxide and sodium oxide, and (b) 3 to 15% by weight parts of organic resin, phenol-formaldehyde resin is used for dry microspheres and urea resin is used for wet microspheres.
Izolační hmota podle vynálezu má velmi dobré Izolační vlastnosti dosahující okoloi 0,07 W/m?K. To umožňuje zpomalit unikání tepla z hlavy ingotu, takže ocel v této oblasti tuhne pomaleji. Nečistoty se při tom přemísťují do horní části ingotu a smrštěním se vytváří mělká dutina. V důsledku toho má ocel vyrobená ve formách z hmo ty podle vynálezu méně nečistot, čímž se zvyšuje výtěžek oceli. Další výhodou izolační hmoty podle vynálezu je pak využití mikrosféry, získané z elektrárenských popílků, jako· základního materiálu, která jinak znečišťuje atmosféru a nevyužívá se jí pro praktické účely.The insulating material according to the invention has very good insulating properties of about 0.07 W / m @ 2. This makes it possible to slow down heat leakage from the ingot head, so that the steel solidifies more slowly in this region. In doing so, the impurities are transferred to the top of the ingot and a shallow cavity is formed by shrinkage. As a result, the steel produced in the molds of the present invention has fewer impurities, thereby increasing the steel yield. A further advantage of the insulating material according to the invention is the use of the microsphere obtained from power plant ash as a base material, which otherwise pollutes the atmosphere and is not used for practical purposes.
V příkladném provedení izolační hmota může obsahovat 94 hmotnostních dílů kysličníku křemičitého a 6 hmotnostních dílů fenolformaldehydové pryskyřice. Izolač ní deska vyrobená z této hmoty je na vnitřní straně, kde přichází do styku s tekutou ocelí, opatřena ohnivzdornou vrstvou, protože v případě bezprostředního styku tekuté oceli s deskou vyrobenou z izolační hmoty podle vynálezu nastává částečná ztráta izolačních vlastností, čímž se snižuje účinek zahřívání hlavy ingotu. Ohnivzdorná vrstva může být ze strany, kde se stýká s tekutou ocelí, povlečená exothermickou látkou.In an exemplary embodiment, the insulating composition may comprise 94 parts by weight of silica and 6 parts by weight of phenol-formaldehyde resin. The insulating board made of this material is provided with a fireproof layer on the inner side where it comes into contact with the liquid steel, since in the case of immediate contact of the liquid steel with the board made of the insulating material according to the invention there is a partial loss of insulating properties. ingot head. The fire-resistant layer may be coated with an exothermic substance on the liquid steel side.
PŘEDMĚTSUBJECT
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL19995077 | 1977-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS203198B2 true CS203198B2 (en) | 1981-02-27 |
Family
ID=19983876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS784992A CS203198B2 (en) | 1977-07-28 | 1978-07-27 | Insulating material,especially for insulating sheets for moulds for steel ingots |
Country Status (11)
| Country | Link |
|---|---|
| BE (1) | BE869329A (en) |
| CS (1) | CS203198B2 (en) |
| DD (1) | DD137541A5 (en) |
| DE (1) | DE2833004A1 (en) |
| ES (1) | ES472177A1 (en) |
| FR (1) | FR2398563A1 (en) |
| GB (1) | GB2001658B (en) |
| IT (1) | IT1097797B (en) |
| LU (1) | LU80054A1 (en) |
| SE (1) | SE7808180L (en) |
| SU (1) | SU865119A3 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3414153A1 (en) * | 1984-04-14 | 1985-10-17 | Dynamit Nobel Ag, 5210 Troisdorf | Process for the production of refractory bricks or other shaped articles |
| GB9308363D0 (en) * | 1993-04-22 | 1993-06-09 | Foseco Int | Refractory compositions for use in the casting of metals |
| US6133340A (en) * | 1996-03-25 | 2000-10-17 | Ashland Inc. | Sleeves, their preparation, and use |
| BR9601454C1 (en) * | 1996-03-25 | 2000-01-18 | Paulo Roberto Menon | Process for the production of exothermic and insulating gloves. |
| ES2134729B1 (en) * | 1996-07-18 | 2000-05-16 | Kemen Recupac Sa | IMPROVEMENTS INTRODUCED IN OBJECT APPLICATION FOR A SPANISH INVENTION PATENT N. 9601607 FOR "PROCEDURE FOR THE MANUFACTURE OF EXACT SLEEVES AND OTHER ELEMENTS OF MAZAROTAJE AND FEEDING FOR CAST MOLDS. |
| ES2114500B1 (en) * | 1996-07-18 | 1999-04-01 | Kemen Recupac Sa | PROCEDURE FOR THE MANUFACTURE OF EXACT SLEEVES AND OTHER ELEMENTS OF MAZAROTAJE AND FEEDING FOR CAST MOLDS, INCLUDING THE FORMULATION FOR THE OBTAINING OF SUCH SLEEVES AND ELEMENTS. |
| AU729604B2 (en) * | 1996-12-27 | 2001-02-08 | Iberia Ashland Chemical, S.A. | Molding sand suitable for manufacturing cores and chill- molds |
| US5983984A (en) * | 1998-01-12 | 1999-11-16 | Ashland Inc. | Insulating sleeve compositions and their uses |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE494843A (en) * | ||||
| FR1385669A (en) * | 1963-12-17 | 1965-01-15 | Sandvikens Jernverk Aktiebolag | Heat-insulating compositions for casting metals and their method of use |
| DE1783045A1 (en) * | 1968-09-24 | 1971-02-11 | Keramicke Zd Y N P | Mold to reduce metal heat losses |
| GB1301922A (en) * | 1969-02-18 | 1973-01-04 | ||
| GB1311881A (en) * | 1969-03-29 | 1973-03-28 | Resil Processes Ltd | Heat insulating material for moulding purposes |
| FR2213822A1 (en) * | 1973-01-15 | 1974-08-09 | Seprom Thermonite Sa | Hot top lining compsn contg. non-toxic binder - comprising phenol formaldehyde resin system free of nitrogen |
| GB1448320A (en) * | 1974-03-04 | 1976-09-02 | Univ Washington | Lightweight inorganic material |
| GB1480589A (en) * | 1974-09-03 | 1977-07-20 | Foseco Int | Refractory heat-insulating materials |
| GB1464720A (en) * | 1974-12-03 | 1977-02-16 |
-
1978
- 1978-07-26 SU SU782641005A patent/SU865119A3/en active
- 1978-07-27 BE BE189548A patent/BE869329A/en unknown
- 1978-07-27 DE DE19782833004 patent/DE2833004A1/en not_active Withdrawn
- 1978-07-27 GB GB7831275A patent/GB2001658B/en not_active Expired
- 1978-07-27 SE SE7808180A patent/SE7808180L/en unknown
- 1978-07-27 FR FR7822295A patent/FR2398563A1/en not_active Withdrawn
- 1978-07-27 CS CS784992A patent/CS203198B2/en unknown
- 1978-07-28 ES ES472177A patent/ES472177A1/en not_active Expired
- 1978-07-28 DD DD20700878A patent/DD137541A5/en unknown
- 1978-07-28 IT IT2625178A patent/IT1097797B/en active
- 1978-07-28 LU LU80054A patent/LU80054A1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SU865119A3 (en) | 1981-09-15 |
| ES472177A1 (en) | 1979-10-01 |
| FR2398563A1 (en) | 1979-02-23 |
| LU80054A1 (en) | 1978-12-12 |
| GB2001658A (en) | 1979-02-07 |
| GB2001658B (en) | 1982-04-07 |
| IT1097797B (en) | 1985-08-31 |
| DD137541A5 (en) | 1979-09-12 |
| SE7808180L (en) | 1979-01-29 |
| DE2833004A1 (en) | 1979-02-15 |
| BE869329A (en) | 1978-11-16 |
| IT7826251A0 (en) | 1978-07-28 |
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