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WO2020076279A1 - Poudre-précurseur et liant pour fabriquer des articles céramiques par impression tridimensionnelle - Google Patents

Poudre-précurseur et liant pour fabriquer des articles céramiques par impression tridimensionnelle Download PDF

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Publication number
WO2020076279A1
WO2020076279A1 PCT/UA2019/000025 UA2019000025W WO2020076279A1 WO 2020076279 A1 WO2020076279 A1 WO 2020076279A1 UA 2019000025 W UA2019000025 W UA 2019000025W WO 2020076279 A1 WO2020076279 A1 WO 2020076279A1
Authority
WO
WIPO (PCT)
Prior art keywords
powder
composition
binder
dimensional printing
clay
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/UA2019/000025
Other languages
English (en)
Russian (ru)
Inventor
Володымыр Володымыровыч УСОВ
Гэоргий Стэпановыч СЭЛИВАНОВ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Priority claimed from UAA201810035A external-priority patent/UA120412C2/uk
Application filed by Individual filed Critical Individual
Publication of WO2020076279A1 publication Critical patent/WO2020076279A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • 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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients

Definitions

  • the invention relates to the technology of industrial three-dimensional printing of 5 ceramic products, in particular to the composition of the ingredients of the precursor powder and the composition of the binder ingredients.
  • a precursor powder and a binder For the manufacture of ceramic products by three-dimensional printing, for example, on a printer Z CGR 310, use a precursor powder and a binder.
  • composition is selected as a prototype of the inventive powder -
  • Ns 8475946 contains a frit
  • the prototype composition has the following disadvantages.
  • SUBSTITUTE SHEET due to the low flowability (less than 5 g / s) of the powder in front of the shaft (which rotates from left to right) at the beginning of the process of applying the powder to the print chamber, and also due to the large (over 20%) difference in bulk (0.82 g / cm 3 ) density and true (1.21 g / cm 3 ) density of the powder (see Table 1).
  • the compressive strength of products prepared from the specified powder does not exceed the value of 73 kg / cm 2 , even when using the pressure mechanism (see Table 1).
  • the powder product has a fire shrink of at least 10-12%, which requires an increase in the model at the printing stage and limits the available area of the print chamber.
  • the powder contains a respirable fraction in an amount of 6 mg / m 3 and a respirable fraction in an amount of 3 mg / m 3 , which creates an increased danger for the operator and contributes to clogging of the mechanical components of the 3 d-printer.
  • Known binder composition for the manufacture of ceramic products by three-dimensional printing which includes the following components:
  • composition of this binder is selected as a prototype.
  • the basis of the invention is the task to create a composition of the ingredients of the precursor powder and a composition of the binder ingredients for the manufacture of ceramic products by three-dimensional printing, which provide improved consumer properties of the finished product, accelerating the production of both one of the components and the ceramic product as a whole.
  • the problem is solved by two inventions, united by a single inventive concept: the composition of the ingredients of the precursor powder and the composition of the binder ingredients for the manufacture of ceramic products by three-dimensional printing.
  • the task is solved by the composition of the ingredients of the powder - a precursor for the manufacture of ceramic products by three-dimensional printing containing clay and fluff so that, unlike the prototype, the composition additionally contains aluminum oxide, and as smoothing - glaze, with the following ratio of these components, May. %:
  • composition contains:
  • the task is solved by the composition of the binder ingredients for three-dimensional printing of ceramic products containing glycerin, ethylene glycol, secondary alcohol and distilled water, in that, unlike the prototype, the composition further comprises PEG-7, and it contains isopropyl alcohol as a secondary alcohol , in the following ratio of these components, May. %:
  • PEG-7 glyceryl cocoate
  • composition further comprises a dye in an amount of 0, 5-4, 0 wt.%.
  • New in the first invention is the introduction of an additional component, aluminum oxide, the replacement of flux, and also the mass ratio of the components.
  • Clay grade MKL-1 is a typical clay, which is available in many countries, including and in Ukraine. It is non-granulated clay and has a high density.
  • the glaze is introduced in an amount of less than 4 wt.%. this will lead to destruction of the product during firing. If clay is introduced in an amount of less than 2 wt.% - this will lead to destruction of the product when removed from the print chamber. An increase in the amount of glaze (more than 20 wt.%) And clay (more than 40 wt.%) Leads to excessive deformation during firing.
  • Clay performs 2 functions: a water absorber (binder) and a powder body (base).
  • An increase in clay content also leads to a decrease in flowability, density, strength and an increase in shrinkage.
  • a decrease in the amount of clay Leads to the fact that the powder cannot adequately (sufficiently) saturate the binder and, as a result, the product loses its shape and its strength drops sharply (decreases) (see example Ns 6).
  • the glaze serves as a fusion substance (melt) at high temperature (970-1020 ° C).
  • a fusion substance (melt) at high temperature (970-1020 ° C).
  • the choice of particle size of aluminum oxide can be explained as follows. It is desirable that the particle size in the powder A1 2 0 3 be as small as possible, while maintaining high flowability.
  • the hardness of the material - aluminum oxide is one of the most solid substances, and allows you to save flowability for particles less than 50 microns; the vast majority of clays become non-flowing with a fractional composition of less than 50 microns;
  • New in the second invention is the presence of an additional component - PEG-7 (glyceryl cocoate), the replacement of secondary alcohol, as well as the mass ratio of the components.
  • the components of the claimed composition are readily available, which ensures the efficiency and economy of obtaining ceramic products that meet the requirements of the ceramic industry.
  • composition of the powder precursor ingredients for the manufacture of ceramic products by three-dimensional printing is prepared by mixing an aluminum oxide powder with a particle size of 40-50 microns with clay, for example, grade MKL-1, and with glaze, for example, grade VTR-100 in random order. The mixture of components is mixed for ⁇ 5 minutes. until complete homogenization. These components are taken in the following ratio, in May. %: clay, for example, grade MKL-1 2-40
  • composition is a whitish powder and is intended for the preparation of ceramic products by three-dimensional printing.
  • composition was prepared as described above. The components were taken in the following ratio, May. %
  • a test sample of a ceramic product was prepared (size 5x5x5 cm).
  • the ceramic product was made by three-dimensional printing on a Z corp 310 printer.
  • Examples 2-9 illustrate the manufacture of ceramic products by three-dimensional printing in the same way as described in example 1, but with different mass ratios of components, as well as the test results of the samples obtained in examples 2-9.
  • Example 10 illustrates the physical characteristics of a ceramic product obtained by three-dimensional printing using Stoneware Ceramic Powder, sold under the brand name Tethonite.
  • the amount of glaze is not enough to maintain shape - the product crumbled during firing (photo 4).
  • the density of the powder was determined in the print chamber on the right side and on the left side after printing, prepared according to example 1 and powder Stoneware Ceramic Powder brand Tethonite (example 10).
  • the density of the powder prepared according to example 1 is 155% higher, and on the left side - 134% higher than the density of the powder Stoneware Ceramic Powder.
  • a binder composition for three-dimensional printing of ceramic products is prepared by mixing glycerol, isopropyl alcohol, PEG-7 (glyceryl cocoate), ethylene glycol and distilled water in a random order.
  • the components are then mixed for ⁇ 5 min until complete homogenization. If necessary, give the finished product a certain color to the specified composition additionally add a water-soluble dye.
  • PEG-7 glyceryl cocoate
  • dye is introduced into the composition in the amount of 0, 5-4, 0 wt.%.
  • the resulting composition is a moderately viscous transparent liquid or has the color of the corresponding dye.
  • This composition is suitable for creating ceramic products by three-dimensional printing.
  • Example 1 A binder composition was prepared as described above.
  • the ceramic product was made by three-dimensional printing on a Zcorp 310 printer.
  • Examples 12-25 illustrate the manufacture and testing of ceramic products manufactured in the same way as described in example 11, but with different mass ratios of the components of the inventive binder.
  • the average density is higher by 239-276 units (kg / m 3 );
  • compressive strength is higher at 1.93-1.37 units (kg / cm 2 ).
  • Prototypes made ceramic products by three-dimensional printing using these compositions.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

L'invention se rapporte aux techniques d'impression tridimensionnelle industrielle d'articles céramiques, et concerne notamment une composition d'ingrédients de poudre-précurseur et une composition d'ingrédients de liant. L'invention concerne une poudre-précurseur pour fabriquer des articles céramiques par impression tridimensionnelle, qui comprend les composants suivants en % en poids: glaçure, par exemple de la marque VTR-100, 4-20; argile, par exemple de la marque MKL-1, 2-40; le reste se composant d'oxde d'alumine par exemple sous forme de poudre avec une taille des particules de 40-50 microns. Le liant pour l'impression tridimensionnelle industrielle d'articles céramiques comprend les composants suivants en % en poids: glycérine 0,5-9,0; alcool isopropylique 0,5-9,0; PEG-7 (cocoate de glycéryl) 0,3-5,0; éthylène glycol 5,0-30,0; le reste se composant d'eau distillée. S'il est nécessaire de donner au produit fini une couleur prédéterminée, la composition du liant peut en outre comprendre un colorant soluble dans l'eau. Cette invention permet d'améliorer les propriétés d'utilisation de l'article fini, et d'accélérer la production de l'un des composants (poudre-précurseur ou liant) et de l'article créamique en soi.
PCT/UA2019/000025 2018-10-08 2019-02-26 Poudre-précurseur et liant pour fabriquer des articles céramiques par impression tridimensionnelle Ceased WO2020076279A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
UAA201810035A UA120412C2 (uk) 2018-10-08 2018-10-08 Композиція інгредієнтів зв'язувального для тривимірного друку керамічного виробу
UAA201810035 2018-10-08
UAA201900325 2019-01-11
UAA201900325 2019-01-11

Publications (1)

Publication Number Publication Date
WO2020076279A1 true WO2020076279A1 (fr) 2020-04-16

Family

ID=70164057

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/UA2019/000025 Ceased WO2020076279A1 (fr) 2018-10-08 2019-02-26 Poudre-précurseur et liant pour fabriquer des articles céramiques par impression tridimensionnelle

Country Status (1)

Country Link
WO (1) WO2020076279A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080213611A1 (en) * 2007-01-19 2008-09-04 Cinvention Ag Porous, non-degradable implant made by powder molding
US20130157013A1 (en) * 2010-06-07 2013-06-20 University of the West England, Bristol Product and process
US8475946B1 (en) * 2007-03-20 2013-07-02 Bowling Green State University Ceramic article and method of manufacture
RU2556657C2 (ru) * 2010-02-23 2015-07-10 Ламберти Спа Керамические среды и краски в порошкообразной форме
US20170246686A1 (en) * 2014-09-26 2017-08-31 Hewlett-Packard Development Company, L.P. Pastes for printing three-dimensional objects in additive manufacturing processes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080213611A1 (en) * 2007-01-19 2008-09-04 Cinvention Ag Porous, non-degradable implant made by powder molding
US8475946B1 (en) * 2007-03-20 2013-07-02 Bowling Green State University Ceramic article and method of manufacture
RU2556657C2 (ru) * 2010-02-23 2015-07-10 Ламберти Спа Керамические среды и краски в порошкообразной форме
US20130157013A1 (en) * 2010-06-07 2013-06-20 University of the West England, Bristol Product and process
US20170246686A1 (en) * 2014-09-26 2017-08-31 Hewlett-Packard Development Company, L.P. Pastes for printing three-dimensional objects in additive manufacturing processes

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