KR890006516A - 반수석고의 수화방법 - Google Patents

반수석고의 수화방법 Download PDF

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Publication number
KR890006516A
KR890006516A KR1019880013283A KR880013283A KR890006516A KR 890006516 A KR890006516 A KR 890006516A KR 1019880013283 A KR1019880013283 A KR 1019880013283A KR 880013283 A KR880013283 A KR 880013283A KR 890006516 A KR890006516 A KR 890006516A
Authority
KR
South Korea
Prior art keywords
gypsum
mold
water
hydration method
cooled
Prior art date
Application number
KR1019880013283A
Other languages
English (en)
Other versions
KR910003864B1 (ko
Inventor
다쯔히로 고스기
마사히꼬 즈에미쯔
마사미 고또
Original Assignee
고가 요시네
토토기끼 가부시끼가이샤
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 고가 요시네, 토토기끼 가부시끼가이샤 filed Critical 고가 요시네
Publication of KR890006516A publication Critical patent/KR890006516A/ko
Application granted granted Critical
Publication of KR910003864B1 publication Critical patent/KR910003864B1/ko

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/344—Moulds, cores, or mandrels of special material, e.g. destructible materials from absorbent or liquid- or gas-permeable materials, e.g. plaster moulds in general
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/346—Manufacture of moulds
    • 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
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00939—Uses not provided for elsewhere in C04B2111/00 for the fabrication of moulds or cores

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Mold Materials And Core Materials (AREA)

Abstract

내용 없음

Description

반수석고의 수화방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (4)

  1. -40℃ 내지 5℃로 냉각한 반수석고와 물과의 혼합물을 교반해서 -5℃ 내지 10℃인 석고 슬러리를 얻고, 이것을 불투수성인 형에 흘러넣어서 응격 반응이 종료될때까지 보지하고, 그런 다음에 탈형하는 것을 특징으로 하는 반수석고의 수화 방법.
  2. 제 1 항에 있어서, 석고 슬러리가 다시 응고점 강하제를 포함하는 것을 특징으로 하는 반수석고의 수화 방법.
  3. 제 1 항에 있어서, 반수석고를 액화가스를 써서 냉각하는 것을 특징으로 하는 반수석고의 수화방법.
  4. 제 1 항에 있어서, 석고 슬러리를 불투수성인 형에 흘려 넣은 다음, -20℃ 내지 10℃인 분위기중에서 응결 반응이 종료될때까지 보유하는 것을 특징으로 하는 반수석고의 수화방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880013283A 1987-10-13 1988-10-12 반수석고의 수화방법 KR910003864B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP258117 1987-10-13
JP62-258117 1987-10-13
JP62258117A JP2527339B2 (ja) 1987-10-13 1987-10-13 半水石膏の水和方法

Publications (2)

Publication Number Publication Date
KR890006516A true KR890006516A (ko) 1989-06-14
KR910003864B1 KR910003864B1 (ko) 1991-06-15

Family

ID=17315739

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880013283A KR910003864B1 (ko) 1987-10-13 1988-10-12 반수석고의 수화방법

Country Status (9)

Country Link
US (1) US4906449A (ko)
EP (1) EP0312027B1 (ko)
JP (1) JP2527339B2 (ko)
KR (1) KR910003864B1 (ko)
CN (1) CN1014141B (ko)
AT (1) ATE87532T1 (ko)
CA (1) CA1318109C (ko)
DE (1) DE3879849T2 (ko)
PT (1) PT88740B (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6398864B1 (en) 1999-11-30 2002-06-04 United States Gypsum Company Pottery plaster formulations for the manufacture of plaster molds
US6630153B2 (en) * 2001-02-23 2003-10-07 Smith & Nephew, Inc. Manufacture of bone graft substitutes
US6387172B1 (en) 2000-04-25 2002-05-14 United States Gypsum Company Gypsum compositions and related methods
JP4667597B2 (ja) * 2000-11-22 2011-04-13 豊之 倉井 歯科技工におけるクラウン製作法
GB2497574B (en) * 2011-12-15 2019-10-02 Saint Gobain Placo Sas A method of forming a gypsum based product
US10246378B2 (en) * 2014-10-16 2019-04-02 Georgia-Pacific Gypsum Llc Building products composites and methods

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3179528A (en) * 1962-11-26 1965-04-20 Pan American Petroleum Corp Low temperature cementing composition
US3583172A (en) * 1969-06-30 1971-06-08 Union Carbide Corp Cryogenic cooling of concrete
WO1981002010A1 (en) * 1980-01-09 1981-07-23 Tenax Maskin Ab Plaster products and a process for the production thereof
US4443261A (en) * 1980-02-22 1984-04-17 Tenax Maskin Ab Method of preparing gypsum articles
DE3117813A1 (de) * 1981-05-06 1982-11-25 Chemische Werke Hüls AG, 4370 Marl Verfahren zur herstellung von gipsformsteinen
ATE23033T1 (de) * 1982-12-31 1986-11-15 Ici Plc Stabile zementzusammensetzung.
DE3331110A1 (de) * 1983-08-30 1985-03-14 Rigips GmbH, 3452 Bodenwerder Verfahren zur herstellung von formkoerpern, insbesondere platten unter verwendung von kalziumsulfathaltigen bindemitteln

Also Published As

Publication number Publication date
JP2527339B2 (ja) 1996-08-21
KR910003864B1 (ko) 1991-06-15
EP0312027B1 (en) 1993-03-31
US4906449A (en) 1990-03-06
DE3879849D1 (de) 1993-05-06
CA1318109C (en) 1993-05-25
PT88740B (pt) 1992-12-31
JPH0199806A (ja) 1989-04-18
CN1014141B (zh) 1991-10-02
EP0312027A3 (en) 1991-01-30
EP0312027A2 (en) 1989-04-19
DE3879849T2 (de) 1993-07-08
ATE87532T1 (de) 1993-04-15
CN1035098A (zh) 1989-08-30

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