SU1344754A1 - Method of obtaining glaze coating - Google Patents

Abstract

The invention relates to methods for producing transparent color coatings on ceramic products made from red hot-melt clay, in order to obtain a dark-yellow decorative transparent coating without the use of dyes, heat resistance and cost reduction, a clear, colorless ure eye containing 10-30 May, % boric anhydride is applied on a ceramic substrate comprising 11.7-18.5% by weight of calcium oxide. The heat resistance of the coating is 16-17 cycles, the color is dark yellow. 4 tab. with S (L with 4 cl

Description

eleven

The invention relates to the ceramic industry, in particular, to methods for producing transparent color coatings on ceramic products made from red hot-melting fusible clay, and can be used in the manufacture of kiln artistic tiles.

The purpose of the invention is. obtaining a decorative transparent coating of a dark yellow color without the use of dyes, an increase in heat resistance and a decrease in cost.

As a ceramic substrate, local red low-melting clays and ceramic masses, obtained on the basis of these clays with added chalk, are used.

From the given masses and. Clay tiles are made, dried in air and calcined in an electric furnace at 760-850 ° C.

Quartz sand, alumina, boric acid, borax, lead, copper oxides, potassium nitric acid, sodium nitric acid, strontium carbonate, ammonium phosphoric acid, and perlite of the Aragat deposit are used as glaciers for preparing glazes.

The chemical composition of ceramic substrates is given in table 1.

Glazes are prepared as follows.

The components of the mixture are weighed out according to the recipe, mixed thoroughly and cooked in a laboratory oven at 1250-1350 ° C with a furnace in the oven for 30 minutes and then granules 447542

her on the water. the obtained frits are prepared with a slip with the addition of 8-10% clay from the refractory Veselovsky deposit and 40-45% water, wet grinding of the frits is carried out to a residue on sieve no. 0063 in an amount of 0.5-0.7%.

All cooked slurries are applied to tiles made from

Q of all specified clays and ceramics, masses, watering and dipping method. The density of the glaze suspensions is 1.3-1.5 g / cm. The plates covered with a slip are dried in air and then burned in an oven in the temperature range of 900–960 with a holding time at this temperature of 1.5–2.0 h.

The charge and chemical oxide compositions of the glazes are listed respectively in Tables 2 and 3.

Specific examples of the proposed method for producing an glaze coating are given in Table A.

25 Formula of invention

A method for producing a glaze coating by applying a transparent colorless boron30 containing glaze to a ceramic substrate and subsequent calcination, characterized in that, in order to obtain a decorative transparent coating of a dark yellow color without the use of dyes, improving heat resistance: and reducing the cost, transparent colorless glaze containing 10 -30% by weight of boric anhydride is deposited on a ceramic substrate comprising 11.7 40 18.5% by weight of calcium oxide.

T a b l and c a G

35

m I

cm

in

Yu

oo

ON

Examples of Yu in P of the prototype.

niko-me anicic indicators

Glaurie coatings

900 - 960

900 - 960

900 - 9SO

about

1.3 - 2.0

Transparent, dark yellow color, choreoni

1.5 - 2.0

Clear, dark yellow, good shine

sixteen

17

17

Compiled by L, Gosteva Editor E, Kopcha Tekhred L. Serdyukova Corrector I. Erdeyi: ---

Order 4883/25 Circulation 587 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

950 -1000

950 - 1000

5 - 2.0

Zagluie but, black, shine are good

12

Claims (1)

25 Formula of the invention A method for producing a glaze coating by applying a transparent colorless boron30 containing glaze to a ceramic substrate and subsequent firing, characterized in that, in order to obtain a decorative transparent coating of dark yellow color without the use of dyes, to increase the heat resistance and reduce cost, transparent colorless glaze containing 10 -30 wt.% Boric anhydride, applied to a ceramic substrate, including 11.7 - 18.5 wt.% Calcium oxide. ______________;__Table 1 Ceramic mass Chemical composition, wt.% Si0 ₂ A1 ^ 0 _g ^{Fe a} CaO MgO Κ ^ Ο + Νη, Ο π.π.π M-2 57.31 13.30 5.58 9.45 2.63 - 11.73 M-3 54.50 12.61 5.28 11.70 2.62 - 13.29 M-6 46.07 10.54 4.40 18.50 • 2.58 - 17.91 M-7 43.25 9.85 4.11 20.78 2,57 - 19.44 G-3 53.15 10.64 4,50 13,42 3.39 4.82 10.08 G-5 47.68 9.48 4.00 17.76 3.28 4.28 13.52 S-2 _____ 47.75 9.53 5.22 19.15 3.09 ______ 15.26 Fir composition of glazes per 100 g of glass melt table 2 --------Material one 2 3 four 5 6  7 8 9 Quartz sand 36.23 36.23 58.42 58.42 58.53 58.42 58.40 12.00 5.80 Borax technical 42.30 - - - 65,44 - - - - Perlite 30.22 30.22 - - - - - - Lead oxide 12.08 27.52 22.69 17.69 17.69 2.15 2.15 - - Boric acid - - 8.90 17.80 - 53.40 57.85 26.06 49.51 Alumina - - 4.46 4.46 0.19 - - 15,80 7.50 Potassium Nitric Acid - ' - 3.12 3.12 - - - 4.30 21.50 Sodium nitrate 21, 87 21.87 25.84 19.18 Copper oxide - - - - - 40.00 18.50 Strontium carbonate - - - -. - - - 14.20 28.40 Ammonium phosphate disubstituted 9.30 19.53 I About 1 -four· <r one ol I ο about • one <V 1 * R and 1 ₽ 1 ο ABOUT I one one i one one I d 1 one S 1 one four m 1 ι '1 > S 1 one ω ι  one 00 1-1 σ> 04 £ 1 one ο W 40 40 - iH about ! About 1 R R R R 00 - 1-1 ω 1 rO 1 CM h> CM r * R R R i! * one * · CM CM 4 © CM CM one t B I one one one m ι one <4 1 one about b I one W W tn m about about and 1 ο I <r about R About 1 d 1 r r R R R about U 1 * one -  - one one one CM - Ή I one s i --- Ί M i one υ ι one · - · * · <U 1 ο »- · 1-4 P * i όΰ I - R R S 1 x! one i am 1. one . Ο c one one one one one one one one one 1 ο ι Joint venture cni 1 I one 05 1 ο about one Ο 1 one one one R R one one one ο ABOUT one one one one one one one one one one one one one about I Ο 1 \ © 40 40 40 O ' 00 about one CM 1 <τ <r 1—> R m I R R R R R tn R one <1 1 <$ hg ABOUT one one - G's one 1 o one 00 00 00 00 one one one 04 04 04 04 one one "one I R R R R one one I am one r- Gh Gh G-. one one one one one t one one one one one one cn about one one one <r about about one one about one R about R one one c < a tn R ABOUT I one fQ four-* one m - one one a J one " I I four CM CM CM cm one one & four <T <r one I ABOUT II R R R R one * 00 00 00 00 one one CO eleven tn tn tn in one ! l one four one one Λ one one 05 a a one R >> four · - CM Joint venture <r one £ _ CO t Phoenico-mechanical indicators Indicator Ceramic mass and glaze by examples Ceramics Glaze Ceramics _____ --- Glaze Ceramics- Eye cheskaya cheskaya cheskaya weight weight weight d Ceramic 5 6 Glaze Ceramic mass Glaze Ceramic mass Glaze Chemical composition, us .2 Si0 _? 54.50 58.42 54.50 58.42 54.50 A1.0 12.61 4.46 12.61 4.46 12.61 Re _g 0, 5.28 0.04 5.28 - 5.28 CaO 11.70 0,03 11.70 - 11.70 MgO 2.62 0.11 2.62 - 2.62 K, 0 1.45 - 1.45 - Ηβ, Ο - 7.98 - 7.98 - K _a O + Na _t O * - - - - Π.Π.Π 13.29 - 13.29 - 13.29 ⁱⁿ g ° e - 15.43 - 10.00 - Pbo - 12.08 - 17.69 - Cud - - - - - ^P t ° 5 - - - - - Sro . - 58.42 46.07 58.42 46.07 58.42 46.07 58.42 - 10.54 4.46 10.54 4.46 . 10.54 - ' - 4.40 0.04 4.40 .- 4.40 - - 18.50 0,03 18, 50 - 18.50 - - 2,58 0,1 t 2,58 - 2.58 - - - 1.45 - 1.45 - - 9.43 - 7.98 - 7.98 - 9.43 - - - - - - - - 17.91 - 17.91 - 17.91 - 30.00 - 15.43 - 10.00 - 30.00 2.15 - 12.08 17.69 - 2.15 - - - - - - - - - ' - - - - - Coating characteristic Optimum firing interval. ^e c 900 - 960 900 - 960 900 - 960 Exposure at optimal temperature lived, h 1.5 - 2.0 1.5 - 2.0 1.5 - 2.0 Glaze appearance Transparent, dark yellow, good gloss Transparent, dark yellow, good gloss ι Transparent, dark yellow, good gloss Heat Resistance .cycle 16 16 17 900 - 960 one 900 - 960 900 - 960 1.5 ~ 2.0 1.5 - 2.0 1.5 - 2.0 Transparent, dark yellow, good gloss Transparent, dark yellow, good gloss Transparent, dark yellow, good gloss 17 17 17 Examples 10 and 11 of the prototype. Table 4 Glaze Coatings 7 8 9 10 fl Herami Glaze Karami Glaze Ceramics Glaze Ceramics Glaze Ceramics Ptazur cheskaya cheskaya cheskaya cheskaya cheskaya weight weight weight mass (many yassa (many gokarbo- carbonate* natnaya May gli- clay) on) 55.15 58.42 53.15 58.42 53.15 10.64 4.46 10.64 4.46 10.64 4,50 0.04 4,50 - 4,50 13,42 0,03 13,42 - 13,42 3.39 0, I I 3.39 - 3.39 1.45 - 1.45 - - 7.98 - 7.98 - 4.82 - ' 4.82 - 4.82 10.08 - 10.08 - 10.08 - 15.43 - 10.00 - - 12.08 - 17.69 - - - - - - - - - - 58.42 54.50 12.00 54.50 5.8 - 12.61 15.8 12.61 7.5 - 5.28 - 5.28 - - 11.70 - 11.70 - - 2.62 - 2.62 - - - 2.00 - 10.00 9.43 - - - - - - - - - - 13.29 - 13.29 - 30.00 - 15,20 - 27.7 2.15. - - - - - - 40,0 - 18.50 - - 5.00 - 10.50 - - 10.00 - 20,0 900 - 960 900 - 960 900 - 960 950 -1000 950 - 1000 1.5 - 2.0 Transparent, dark yellow, good gloss 1 »5 - '2,0 Transparent, dark yellow, good gloss t, 5 - 2.0 Transparent, dark blue, good gloss 1.5 - 2.0 Black, metallic N5 - 2.0 Muffled "black color, good gloss 16 17 17 and 12 Compiled by L. Gostev