WO2020096541A1 - Mélange contenant des déchets de sable de moulage de précision pour la fabrication de glaçure opaque et de fritte opaque et son procédé de production - Google Patents

Mélange contenant des déchets de sable de moulage de précision pour la fabrication de glaçure opaque et de fritte opaque et son procédé de production Download PDF

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Publication number
WO2020096541A1
WO2020096541A1 PCT/TR2019/050085 TR2019050085W WO2020096541A1 WO 2020096541 A1 WO2020096541 A1 WO 2020096541A1 TR 2019050085 W TR2019050085 W TR 2019050085W WO 2020096541 A1 WO2020096541 A1 WO 2020096541A1
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WO
WIPO (PCT)
Prior art keywords
opaque
frit
precision casting
glaze
mixture
Prior art date
Application number
PCT/TR2019/050085
Other languages
English (en)
Inventor
Tuba Bahtli
Original Assignee
Tuba Bahtli
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 Tuba Bahtli filed Critical Tuba Bahtli
Publication of WO2020096541A1 publication Critical patent/WO2020096541A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
    • C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/10—Forming beads
    • C03B19/1005—Forming solid beads
    • C03B19/104—Forming solid beads by rolling, e.g. using revolving cylinders, rotating discs, rolls
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/10—Forming beads
    • C03B19/1005—Forming solid beads
    • C03B19/1045—Forming solid beads by bringing hot glass in contact with a liquid, e.g. shattering

Definitions

  • the invention relates to a method of making the wax casting mold sand, which is used as a precision casting in the industry, completes its life and becomes a solid waste and has no mold properties, available in the production of opaque glaze, a kind of ceramic coating material, and opaque frit production that is used in the production of this glaze.
  • the invention is about to research the use of wax casting mold sand, which is used as a precision casting in the industry, completes its life after a certain use and becomes a solid waste and has no mold properties, in the production of opaque frit, which is a kind of ceramic coating material, and in the production of opaque frit production that is used in the production of this glaze; to regain a waste material whose amount is increasing day by day to a different production sector, ensure economic gain, contribute to natiire and and also to reduce the cost of raw materials by supplying zircon material, which is a major component for opaque glaze material, from waste material.
  • FIG. 1 Schematic representation of zirconia cubic polymorph
  • Figure 2b Schematic representation of the zirconia tetragonal polymorph
  • Figure 2c Schematic representation of monoclinic polymorph of zirconia Figure 3.
  • the precision casting sand material which is converted into waste, can be used for making opaque glaze and opaque frit so that both the waste material will be recovered and the economic gain will be obtained.
  • zircon material Since the zircon material is difficult to melt and has a high tendency to crystallize, it is an important material for the opaque glaze layer used as a coating material in ceramic materials.
  • the presence of Zircon (ZrSi04) in the waste sand to be used in our invention makes possible the method subject to our invention.
  • Oxides with a high melting temperature increase the opacity of the glaze and make it opaque, because they are placed as crystals in the glaze composition. It is a kind of glaze which is used in cases where ceramic structure is to be completely covered.
  • Zircon material which melts during firing and crystallizes during cooling, is an important opacifying material.
  • Frit is a glass structure intermediate product which is formed as a result of melting of ground and powdered ceramic raw materials after weighing according to a recipe and mixing, then rapidly cooling of the melt. Glazes could be obtained with or without frit.
  • Zirconia is a refractory material with high temperature resistance and excellent insulation. Especially it has high corrosion resistance to basic slag in continuous casting. Sintered zirconia has high stability against temperature and chemical effects. Ladles and firing boats made of sintered compact Zr02 and can be used up to 2500 °C. Depending on the type of stabilizing component, the melting temperature of the stabilized Zr02 is lower than pure Zr02. There are 3 known polymorphs of zirconia ( Figure 2).
  • zirconia toughening was applied to many ceramics, the most studied system is zirconia toughened alumina.
  • the addition of sintered alumina zirconia as the second component causes the final particle size of the alumina to be small.
  • the second phase in the grain boundaries prevents simultaneous grain growth during high temperature plastic deformation.
  • Casting is the process by filling the liquid metal into the molds with cavity having the shape of the part to be produced.
  • the dimensions of the mold cavity are made slightly larger than the part to be obtained. Thus, the size reduction resulting from cooling will be balanced.
  • Metal casting is very important for many modern machine parts and elements. For example, more than 50% of the weight of a tractor is cast. This exceeds 90% for the automobile engine.
  • the turbine and jet engine propeller are cast parts that require high precision. On average, one tenth of the iron and steel produced in the last 20 years was used as casting. 75% of all metal casting is gray (Camel Graphite) cast iron. Steel, malleable iron, copper alloys, Al, Zn alloys, Mg-Ni-based alloys, Pb and Ti cast follow it. According to the historical information available, copper alloys have been poured for at least 6000 years and gray iron has been poured for 4000 years. Aluminum has been casted since 1900, nickel-based alloys are casted since 1940 and titanium have been casted since 1950.
  • the precision casting technology is the process of transferring molten metal to the ceramic mold cavity which is emptied by firing the ceramic and melting of the wax inside the ceramic after the around of melting wax parts at the appropriate temperature are covered with ceramic.
  • the other name is "Wax Molding”.
  • First, the model made of wax or plastic is covered with room temperature curing refractory mud. When heated, the wax melts away. Wax and plastic-like models are used in this method where the number of model is required as much as produced parts. Models are produced by injection of wax or plastic into a metal mold and a large number of models are connected to a common path and arranged as bunch. Even models of the most complex parts can be produced very quickly by using these methods. Generally, mixed-shaped parts which are difficult to manufacture in machines are produced by this method. After casting almost it can be used without additional processing. It provides high dimensional accuracy and smoother surface according to other casting methods. METHOD
  • a part of the Zircon input seen in the sample opaque frit recipe is provided at least 1 % by using the above-mentioned precision casting sand waste.
  • Aluminum oxide, dolomite, marble, quartz, zircon (at least 1 % will be obtained from precision casting sand waste) that are used for producing of opaque frit will be ground. It is homogenously blended in a suitable mixer. The raw material mixture is filled into the furnace. At least one of the box, rotary, continuous oven is used as furnace. The melted mixture is cooled rapidly in water or with water-cooled rolls.
  • the sample opaque glaze recipe to be used in the processes is given below.
  • a part of the Zircon input seen in the sample opaque glaze recipe, at least 1 %, above, is provided by the use of the precision cast sand waste that is mentioned above in the our invention. Thus zircon raw material cost is reduced in production.
  • Glaze preparation begins with the weighing of contents such as: kaolin (AI2O3.2SiO2.2H2O), zircon (ZrSi04) and frit for opaque glaze with frit; kaolin (AI2O3.2SiO2.2H2O), zircon (ZrSi04), dolomite (CaMg(C03)2), marble (CaCOs), Na- feldspar (Na20.Al203.6Si02) and K-feldspar (K2O.AI2O3.6S1O2) quartz (S1O2), Zinc Oxide (ZnO), Boric acid (H3BO3), Alumina (AI2O3) components for frit-free opaque glaze.
  • contents such as: kaolin (AI2O3.2SiO2.2H2O), zircon (ZrSi04) and frit for opaque glaze with frit; kaolin (AI2O3.2SiO2.2H2O), zircon (ZrSi04), dolomite (CaMg(
  • the weighed raw materials are ground with precision casting sand waste at least 1 % with water and auxiliary additives are milled in ball mill.
  • Fritted or non- fritted glazes could be prepared depending on the firing temperature.
  • the sieve residue, liter weight, viscosity and thixotropy values of the prepared opaque glaze suspension are measured. If it is in accordance with the standard values, it is applied by dipping, spraying and pouring on the ceramic body. An opaque glaze layer that is transformed to a glassy layer by heat treatment (sintering) and completely covers the ceramic body is obtained.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

L'invention porte sur un procédé de mise à disposition du sable de moule de moulage à la cire, qui est utilisé en tant que moulage de précision dans l'industrie, qui achève sa durée de vie et qui devient un déchet solide et qui n'a pas de propriétés de moule, dans la production de glaçure opaque, un type de matériau de revêtement céramique, et dans la production de fritte opaque qui est utilisée dans la production de cette glaçure.
PCT/TR2019/050085 2018-11-08 2019-02-11 Mélange contenant des déchets de sable de moulage de précision pour la fabrication de glaçure opaque et de fritte opaque et son procédé de production WO2020096541A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201816818 2018-11-08
TR2018/16818 2018-11-08

Publications (1)

Publication Number Publication Date
WO2020096541A1 true WO2020096541A1 (fr) 2020-05-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2019/050085 WO2020096541A1 (fr) 2018-11-08 2019-02-11 Mélange contenant des déchets de sable de moulage de précision pour la fabrication de glaçure opaque et de fritte opaque et son procédé de production

Country Status (1)

Country Link
WO (1) WO2020096541A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111960801A (zh) * 2020-08-28 2020-11-20 福建泉州顺美集团有限责任公司 一种具有乳浊釉面的低温一次烧成陶瓷及制备方法
CN112142328A (zh) * 2020-09-22 2020-12-29 佛山市三水新明珠建陶工业有限公司 一种具有精细模具纹理瓷片的制造方法
CN115353416A (zh) * 2022-08-31 2022-11-18 广东简一(集团)陶瓷有限公司 一种低温超耐磨陶瓷砖及其制备方法
CN115636585A (zh) * 2022-10-21 2023-01-24 江西和美陶瓷有限公司 一种锆基材料、化妆土釉料及制备方法与应用

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1055038A (en) * 1964-02-28 1967-01-11 Cons Electronics Ind Methods of coating electrical units with ceamic material in a vitrified matrix
GB1086577A (en) * 1965-06-29 1967-10-11 Albert Frederick Mayers Foundry moulding sand
GB1466250A (en) * 1972-12-27 1977-03-02 Toppan Printing Co Ltd Ceramics
US20080199708A1 (en) * 2007-02-16 2008-08-21 Nichiha Corporation Glaze composition
WO2009058746A1 (fr) * 2007-11-01 2009-05-07 Ferro Corporation Glacis de carreau

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1055038A (en) * 1964-02-28 1967-01-11 Cons Electronics Ind Methods of coating electrical units with ceamic material in a vitrified matrix
GB1086577A (en) * 1965-06-29 1967-10-11 Albert Frederick Mayers Foundry moulding sand
GB1466250A (en) * 1972-12-27 1977-03-02 Toppan Printing Co Ltd Ceramics
US20080199708A1 (en) * 2007-02-16 2008-08-21 Nichiha Corporation Glaze composition
WO2009058746A1 (fr) * 2007-11-01 2009-05-07 Ferro Corporation Glacis de carreau

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111960801A (zh) * 2020-08-28 2020-11-20 福建泉州顺美集团有限责任公司 一种具有乳浊釉面的低温一次烧成陶瓷及制备方法
CN111960801B (zh) * 2020-08-28 2022-01-28 福建泉州顺美集团有限责任公司 一种具有乳浊釉面的低温一次烧成陶瓷及制备方法
CN112142328A (zh) * 2020-09-22 2020-12-29 佛山市三水新明珠建陶工业有限公司 一种具有精细模具纹理瓷片的制造方法
CN112142328B (zh) * 2020-09-22 2022-09-13 佛山市三水新明珠建陶工业有限公司 一种具有精细模具纹理瓷片的制造方法
CN115353416A (zh) * 2022-08-31 2022-11-18 广东简一(集团)陶瓷有限公司 一种低温超耐磨陶瓷砖及其制备方法
CN115636585A (zh) * 2022-10-21 2023-01-24 江西和美陶瓷有限公司 一种锆基材料、化妆土釉料及制备方法与应用

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