HRP20190823T1 - Sastav gipsa za vatrostalne kalupe - Google Patents

Sastav gipsa za vatrostalne kalupe Download PDF

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Publication number
HRP20190823T1
HRP20190823T1 HRP20190823TT HRP20190823T HRP20190823T1 HR P20190823 T1 HRP20190823 T1 HR P20190823T1 HR P20190823T T HRP20190823T T HR P20190823TT HR P20190823 T HRP20190823 T HR P20190823T HR P20190823 T1 HRP20190823 T1 HR P20190823T1
Authority
HR
Croatia
Prior art keywords
mineral
composition according
powder
mineral composition
aluminum oxide
Prior art date
Application number
HRP20190823TT
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English (en)
Inventor
Hélène RETOT
Nathalie Petigny
Emmanuel Fourdrin
Stéphane THIOLIERE
Original Assignee
Saint-Gobain Placo
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Saint-Gobain Placo filed Critical Saint-Gobain Placo
Publication of HRP20190823T1 publication Critical patent/HRP20190823T1/hr

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C1/00Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C1/00Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16Compositions 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
    • B22C1/18Compositions 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
    • B22C1/181Cements, oxides or clays
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/02Sand moulds or like moulds for shaped castings
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • C04B28/145Calcium sulfate hemi-hydrate with a specific crystal form
    • C04B28/146Calcium sulfate hemi-hydrate with a specific crystal form alpha-hemihydrate
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00939Uses not provided for elsewhere in C04B2111/00 for the fabrication of moulds or cores

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mold Materials And Core Materials (AREA)
  • Civil Engineering (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Claims (10)

1. Mineralni sastav za pripremu kalupa za lijevanje, naznačen time što sadrži: (a) od 20 do 90% po masi gipsa, (b) od 10 do 75% po masi mineralne komponente na bazi silicijevog dioksida i / ili aluminijevog oksida, i (c) od 0,5 do 4,8%, poželjno od 1,5 do 4,5%, a posebno od 2 do 4,5% po masi mineralnog praha koji ima toplinsku vodljivost (λ) na 20°C između 20 i 500 W/(m.K) i BET specifičnu površinu sadržanu između 12 i 50 m2/g, ti se postoci odnose na ukupnu težinu zbroja komponenti (a), (b) i (c).
2. Mineralni sastav prema zahtjevu 1, naznačen time da je mineralni prah (c) prah grafita, poželjno ekspandirani grafitni prah ili zbijeni ekspandirani grafitni prah.
3. Mineralni sastav prema bilo kojem od prethodnih zahtjeva, naznačen time da je srednji promjer (D50) mineralnog praha (c), određen laserskom granulometrijom, sadržan između 5 i 250 µm, poželjno između 10 i 200 µm, a naročito između 20 i 150 µm.
4. Mineralni sastav prema bilo kojem od prethodnih zahtjeva, naznačen time da je BET specifična površina mineralnog praha (c) sadržana između 15 i 40 m2/g, a posebno između 20 i 30 m2/g.
5. Mineralni sastav prema bilo kojem od prethodnih zahtjeva, naznačen time da mineralni prah (c) ima nasipnu gustoću između 0,02 i 0,3 g/cm3, poželjno između 0,03 i 0,2 g/cm3.
6. Mineralni sastav prema bilo kojem od prethodnih zahtjeva, naznačen time da je mineralna komponenta (b) na bazi silicijevog dioksida i / ili aluminijevog oksida odabrana iz skupine koju čine silicijev dioksid, aluminijev oksid, kordierit ili vatrostalnog šamota na bazi mulita.
7. Mineralni sastav prema bilo kojem od prethodnih zahtjeva, naznačen time da on dalje sadrži do 30% težinski jednog ili više drugih aditiva, poželjno odabranih iz skupine sačinjene od staklenih perli, ekspandiranih ili ne, staklenih pahuljica, mineralnih vlakana i vermikulita, po mogućnosti u skupini koju čine ekspandirane staklene kuglice i staklena vlakna.
8. Postupak za proizvodnju kalupa za lijevanje, sadržeći - miješanje mineralnog sastava prema bilo kojem od prethodnih zahtjeva s vodom tako da se dobije fluidni sastav, - izlijevanje fluidnog sastava u kalup koji sadrži model dijela koji se oblikuje, - postavljanje miješanog sastava i, nakon potpunog stvrdnjavanja, - uklanjanje modela ili razdvajanje modela i dobivenog kalupa.
9. Kalup za lijevanje koji se može dobiti postupkom prema zahtjevu 8.
10. Kalup za lijevanje prema prethodnom zahtjevu, naznačen time da ima toplinsku difuzivnost pri sobnoj temperaturi između 0,2 i 2 mm2/s, poželjno između 0,3 i 1,5 mm2/s, posebno između 0,7 i 1,2 mm2/s.
HRP20190823TT 2012-05-30 2019-05-02 Sastav gipsa za vatrostalne kalupe HRP20190823T1 (hr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1254957A FR2991314B1 (fr) 2012-05-30 2012-05-30 Composition de platre pour moules refractaires
EP13728500.3A EP2855395B1 (fr) 2012-05-30 2013-05-27 Composition de plâtre pour moules refractaires
PCT/FR2013/051169 WO2013178923A1 (fr) 2012-05-30 2013-05-27 Composition de plâtre pour moules refractaires

Publications (1)

Publication Number Publication Date
HRP20190823T1 true HRP20190823T1 (hr) 2019-06-28

Family

ID=48614061

Family Applications (1)

Application Number Title Priority Date Filing Date
HRP20190823TT HRP20190823T1 (hr) 2012-05-30 2019-05-02 Sastav gipsa za vatrostalne kalupe

Country Status (16)

Country Link
US (1) US10052680B2 (hr)
EP (1) EP2855395B1 (hr)
CN (1) CN104350024B (hr)
BR (1) BR112014028477B1 (hr)
DK (1) DK2855395T3 (hr)
ES (1) ES2724849T3 (hr)
FR (1) FR2991314B1 (hr)
HR (1) HRP20190823T1 (hr)
HU (1) HUE044185T2 (hr)
IN (1) IN2014DN09279A (hr)
MY (1) MY174166A (hr)
PL (1) PL2855395T3 (hr)
PT (1) PT2855395T (hr)
SI (1) SI2855395T1 (hr)
TR (1) TR201906358T4 (hr)
WO (1) WO2013178923A1 (hr)

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US20150231696A1 (en) * 2014-02-18 2015-08-20 General Electric Company Methods for directional solidification casting
KR101575989B1 (ko) * 2014-12-24 2015-12-09 고영신 팽창흑연을 이용한 경량화된 흡음내화 단열재 및 그 제조방법
CN105436410A (zh) * 2015-12-25 2016-03-30 西安奥邦科技有限责任公司 一种用于钛合金铸造的石膏模具
US10604929B2 (en) * 2016-11-01 2020-03-31 United States Gypsum Company Fire resistant gypsum board comprising expandable graphite and related methods and slurries
US11339572B1 (en) 2017-01-23 2022-05-24 Gold Bond Building Products, Llc Method of manufacturing gypsum board with improved fire
CN118341946B (zh) * 2024-06-18 2024-08-20 成都新航工业科技股份有限公司 一种用于异型零件的铸造装置和铸造方法

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Also Published As

Publication number Publication date
ES2724849T3 (es) 2019-09-16
FR2991314A1 (fr) 2013-12-06
DK2855395T3 (da) 2019-05-13
WO2013178923A1 (fr) 2013-12-05
TR201906358T4 (tr) 2019-05-21
BR112014028477B1 (pt) 2020-12-08
CN104350024A (zh) 2015-02-11
CN104350024B (zh) 2018-06-15
BR112014028477A2 (pt) 2018-05-29
US10052680B2 (en) 2018-08-21
SI2855395T1 (sl) 2019-05-31
MY174166A (en) 2020-03-11
IN2014DN09279A (hr) 2015-07-10
EP2855395B1 (fr) 2019-03-06
PL2855395T3 (pl) 2019-09-30
EP2855395A1 (fr) 2015-04-08
HUE044185T2 (hu) 2019-10-28
US20150183023A1 (en) 2015-07-02
FR2991314B1 (fr) 2014-06-06
PT2855395T (pt) 2019-05-20

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