RU2014118127A - COMPOSITIONS FOR COATING INORGANIC CASTING FORMS AND BARS CONTAINING COMPOUND ETHERS OF FORMIC ACID, AND ALSO USE - Google Patents

COMPOSITIONS FOR COATING INORGANIC CASTING FORMS AND BARS CONTAINING COMPOUND ETHERS OF FORMIC ACID, AND ALSO USE Download PDF

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Publication number
RU2014118127A
RU2014118127A RU2014118127/02A RU2014118127A RU2014118127A RU 2014118127 A RU2014118127 A RU 2014118127A RU 2014118127/02 A RU2014118127/02 A RU 2014118127/02A RU 2014118127 A RU2014118127 A RU 2014118127A RU 2014118127 A RU2014118127 A RU 2014118127A
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Russia
Prior art keywords
coating composition
composition according
weight
formic acid
refractory materials
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RU2014118127/02A
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Russian (ru)
Inventor
Михаэль Клосковски
Петер ВАХТАРКЦИК
Каролин ВАЛЛЕНХОРСТ
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Аск Кемикалз Гмбх
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Publication of RU2014118127A publication Critical patent/RU2014118127A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
    • B22C1/04—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives for protection of the casting, e.g. against decarbonisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/18—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of inorganic agents
    • B22C1/186—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of inorganic agents contaming ammonium or metal silicates, silica sols
    • B22C1/188—Alkali metal silicates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/12—Treating moulds or cores, e.g. drying, hardening

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Paints Or Removers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

1. Композиция обмазки, содержащая(A) сложные эфиры муравьиной кислоты,(B) жидкость-носитель, содержащую или состоящую из воды, и(C) огнеупорные материалы.2. Композиция обмазки по п. 1, отличающаяся тем, что спиртовая группа (группы) сложного эфира (эфиров) муравьиной кислоты в каждом случае содержит менее 10, предпочтительно менее 6 и особенно предпочтительно менее 3 атомов углерода.3. Композиция обмазки по п. 1 или 2, отличающаяся тем, что концентрация сложного эфира муравьиной кислоты в композиции обмазки составляет 1-8 вес. %, предпочтительно 2-8 вес. % и особенно предпочтительно 3-6 вес. %.4. Композиция обмазки по п. 1, отличающаяся тем, что жидкость-носитель содержит более 50 вес. % воды, а также предпочтительно содержит спирты, включая многоатомные спирты и неполные эфиры многоатомных спиртов, и, в частности, может полностью испаряться при температуре до 160°C и давлении 1013 мбар.5. Композиция обмазки по п. 1, отличающаяся тем, что содержание твердых веществ композиции обмазки составляет до 30-70 вес. %.6. Композиция обмазки по п. 1, отличающаяся тем, что композиция обмазки содержит 10-85 вес. % огнеупорного материала, исходя из содержания твердых веществ композиции обмазки.7. Композиция обмазки по п. 1, отличающаяся тем, что огнеупорными материалами являются кварц, оксид алюминия, диоксид циркония, силикаты алюминия, циркониевые пески, силикаты циркония, оливин, тальк, слюда, кокс, полевой шпат, диатомит, каолины, кальцинированные каолины, каолинит, метакаолинит, оксид железа, боксит и/или их смеси.8. Композиция обмазки по п. 1, в которой огнеупорные материалы имеют размеры частиц 0,1-500 мкм, в частности, 1-200 мкм, измеренные с помощью рассеяния света с�1. A coating composition containing (A) formic acid esters, (B) a carrier fluid containing or consisting of water, and (C) refractory materials. 2. The coating composition according to claim 1, characterized in that the alcohol group (s) of the formate ester (s) in each case contains less than 10, preferably less than 6, and particularly preferably less than 3 carbon atoms. The coating composition according to claim 1 or 2, characterized in that the concentration of formic acid ester in the coating composition is 1-8 weight. %, preferably 2-8 weight. % and particularly preferably 3-6 weight. %.4. The coating composition according to claim 1, characterized in that the carrier fluid contains more than 50 weight. % water, and also preferably contains alcohols, including polyhydric alcohols and partial esters of polyhydric alcohols, and, in particular, can completely evaporate at temperatures up to 160 ° C and a pressure of 1013 mbar. 5. The coating composition according to claim 1, characterized in that the solids content of the coating composition is up to 30-70 weight. % .6. The coating composition according to claim 1, characterized in that the coating composition contains 10-85 weight. % refractory material based on the solids content of the coating composition. 7. The coating composition according to claim 1, characterized in that the refractory materials are quartz, alumina, zirconia, aluminum silicates, zirconium sands, zirconium silicates, olivine, talc, mica, coke, feldspar, diatomite, kaolins, calcined kaolins, kaolinite , metakaolinite, iron oxide, bauxite and / or mixtures thereof. 8. The coating composition according to claim 1, in which the refractory materials have particle sizes of 0.1-500 μm, in particular 1-200 μm, measured using light scattering with

Claims (14)

1. Композиция обмазки, содержащая1. The coating composition containing (A) сложные эфиры муравьиной кислоты,(A) formic acid esters, (B) жидкость-носитель, содержащую или состоящую из воды, и(B) a carrier fluid containing or consisting of water, and (C) огнеупорные материалы.(C) refractory materials. 2. Композиция обмазки по п. 1, отличающаяся тем, что спиртовая группа (группы) сложного эфира (эфиров) муравьиной кислоты в каждом случае содержит менее 10, предпочтительно менее 6 и особенно предпочтительно менее 3 атомов углерода.2. The coating composition according to claim 1, wherein the alcohol group (s) of the formic acid ester (s) in each case contains less than 10, preferably less than 6, and particularly preferably less than 3 carbon atoms. 3. Композиция обмазки по п. 1 или 2, отличающаяся тем, что концентрация сложного эфира муравьиной кислоты в композиции обмазки составляет 1-8 вес. %, предпочтительно 2-8 вес. % и особенно предпочтительно 3-6 вес. %.3. The coating composition according to claim 1 or 2, characterized in that the concentration of formic acid ester in the coating composition is 1-8 weight. %, preferably 2-8 weight. % and particularly preferably 3-6 weight. % 4. Композиция обмазки по п. 1, отличающаяся тем, что жидкость-носитель содержит более 50 вес. % воды, а также предпочтительно содержит спирты, включая многоатомные спирты и неполные эфиры многоатомных спиртов, и, в частности, может полностью испаряться при температуре до 160°C и давлении 1013 мбар.4. The coating composition according to claim 1, characterized in that the carrier fluid contains more than 50 weight. % water, and also preferably contains alcohols, including polyhydric alcohols and partial esters of polyhydric alcohols, and, in particular, can completely evaporate at temperatures up to 160 ° C and a pressure of 1013 mbar. 5. Композиция обмазки по п. 1, отличающаяся тем, что содержание твердых веществ композиции обмазки составляет до 30-70 вес. %.5. The coating composition according to claim 1, characterized in that the solids content of the coating composition is up to 30-70 weight. % 6. Композиция обмазки по п. 1, отличающаяся тем, что композиция обмазки содержит 10-85 вес. % огнеупорного материала, исходя из содержания твердых веществ композиции обмазки.6. The coating composition according to claim 1, characterized in that the coating composition contains 10-85 weight. % refractory material, based on the solids content of the coating composition. 7. Композиция обмазки по п. 1, отличающаяся тем, что огнеупорными материалами являются кварц, оксид алюминия, диоксид циркония, силикаты алюминия, циркониевые пески, силикаты циркония, оливин, тальк, слюда, кокс, полевой шпат, диатомит, каолины, кальцинированные каолины, каолинит, метакаолинит, оксид железа, боксит и/или их смеси.7. The coating composition according to claim 1, characterized in that the refractory materials are quartz, alumina, zirconia, aluminum silicates, zirconium sands, zirconium silicates, olivine, talc, mica, coke, feldspar, diatomite, kaolins, calcined kaolins , kaolinite, metakaolinite, iron oxide, bauxite and / or mixtures thereof. 8. Композиция обмазки по п. 1, в которой огнеупорные материалы имеют размеры частиц 0,1-500 мкм, в частности, 1-200 мкм, измеренные с помощью рассеяния света согласно DIN/ISO 13320.8. The coating composition according to claim 1, in which the refractory materials have particle sizes of 0.1-500 μm, in particular 1-200 μm, measured by light scattering according to DIN / ISO 13320. 9. Композиция обмазки по п. 1, отличающаяся тем, что композиция обмазки содержит 0,1-20 вес. %, в частности, 0,5-5 вес. % по меньшей мере одного связующего, исходя из содержания твердых веществ композиции обмазки.9. The coating composition according to claim 1, characterized in that the coating composition contains 0.1-20 weight. %, in particular, 0.5-5 weight. % of at least one binder based on the solids content of the coating composition. 10. Композиция обмазки по п. 1, отличающаяся тем, что композиция обмазки содержит образующее блестящий углерод средство или графит, в частности, в количестве 0,1-10 вес. %, в частности, 0,5-3 вес. %.10. The coating composition according to claim 1, characterized in that the coating composition contains a carbon-forming agent or graphite, in particular in an amount of 0.1-10 weight. %, in particular, 0.5-3 weight. % 11. Применение композиции обмазки по одному или нескольким из предыдущих пунктов для нанесения покрытия на смеси формовочного материала, отвержденные жидким стеклом в качестве связующего, необязательно после разведения по меньшей мере водой.11. The use of a coating composition according to one or more of the preceding paragraphs for coating a molding material mixture cured with liquid glass as a binder, optionally after dilution with at least water. 12. Применение по п. 11, отличающееся тем, что смеси формовочного материала содержат диоксид кремния, оксид алюминия, оксид титана или оксид цинка и/или их смеси и, в частности, аморфный диоксид кремния.12. The use according to claim 11, characterized in that the molding material mixture contains silicon dioxide, aluminum oxide, titanium oxide or zinc oxide and / or mixtures thereof and, in particular, amorphous silicon dioxide. 13. Смеси формовочного материала, отвержденные жидким стеклом в качестве связующего, покрытые композицией обмазки по одному или нескольким из пп. 1-10, необязательно после разбавления композиции обмазки по меньшей мере водой.13. A mixture of molding material, cured with liquid glass as a binder, coated with a coating composition according to one or more of claims. 1-10, optionally after diluting the coating composition with at least water. 14. Смеси формовочного материала, отвержденные жидким стеклом в качестве связующего, по п. 13, отличающиеся тем, что смеси формовочного материала содержат диоксид кремния, оксид алюминия, оксид титана или оксид цинка и/или их смеси, в частности, аморфный диоксид кремния. 14. A mixture of molding material, cured with liquid glass as a binder, according to claim 13, characterized in that the mixture of molding material contains silicon dioxide, alumina, titanium oxide or zinc oxide and / or mixtures thereof, in particular, amorphous silicon dioxide.
RU2014118127/02A 2011-10-07 2012-10-05 COMPOSITIONS FOR COATING INORGANIC CASTING FORMS AND BARS CONTAINING COMPOUND ETHERS OF FORMIC ACID, AND ALSO USE RU2014118127A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011115024A DE102011115024A1 (en) 2011-10-07 2011-10-07 Coating compositions for inorganic casting molds and cores comprising formic acid esters and their use
DE102011115024.6 2011-10-07
PCT/DE2012/000973 WO2013050023A2 (en) 2011-10-07 2012-10-05 Coating compositions for inorganic casting molds and cores, comprising formic acid esters, and use thereof

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US (1) US20140242269A1 (en)
EP (1) EP2763806B1 (en)
JP (1) JP2014534075A (en)
KR (1) KR20140077196A (en)
CN (1) CN103857480A (en)
BR (1) BR112014008377A2 (en)
DE (1) DE102011115024A1 (en)
IN (1) IN2014KN00957A (en)
MX (1) MX2014004211A (en)
RU (1) RU2014118127A (en)
WO (1) WO2013050023A2 (en)
ZA (1) ZA201402090B (en)

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US20140242269A1 (en) 2014-08-28
WO2013050023A2 (en) 2013-04-11
IN2014KN00957A (en) 2015-10-09
CN103857480A (en) 2014-06-11
KR20140077196A (en) 2014-06-23
DE102011115024A1 (en) 2013-04-11
MX2014004211A (en) 2014-05-28
EP2763806A2 (en) 2014-08-13
ZA201402090B (en) 2015-06-24
BR112014008377A2 (en) 2017-04-11
WO2013050023A3 (en) 2013-05-30
JP2014534075A (en) 2014-12-18
EP2763806B1 (en) 2016-07-06

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