SU1102774A1 - Enamel - Google Patents

Abstract

ENAMEL, including SiOg,, BjOj, NajO, lC, 0, TiO, PjO, ZrO, MgO, CaO, characterized in that, in order to increase the specular reflection coefficient, color tone and color purity of the coating, it additionally contains MPO. and ZnO in the following ratio of components, -may. %: SiOj 37-42 Al20g 3-8 14-17 V, 0c 15-20 Na20 2.5-4 KjiO Ti02 2-5 4-7 PzOff 1-4 ZrOj 0.8-1.4 MgO 0.5- 3 CaO MnOj 1-8 (L 1.5-4. ZnO

Description

ND

4 1П027 The invention relates to the production of decorative anticorrosive low-melting glass-enamel coatings for household purposes, thermal trading equipment and gas equipment C21., The composition of enamel containing May.% Is known; 0-11 5 0.5-2.5 0.75-2.25 0.5-1.5 0.01-0.4 20 It has indicators of stability in alkaline cleaning solutions, gloss and spreadability, the known enamel has insufficient color purity and brightness when stained in yellow, red, orange and brown tones. The closest to the proposed is the composition of the enamel 2 J, containing wt.%: SiOj35-45; 30 3-10, 10-15 14-20. . 1-3 0.5-3.5 0.75-3 0.5-3.5 0.1-0.6 The disadvantages of this composition are the low values of the specular reflectance, color tone and color purity of the coatings. . The purpose of the invention is to increase the mirror reflection coefficient, color tone and color purity of the coating. The goal is achieved by the fact that the enamel, including SiO-,,, Na.O, KjO, TiOj,, ZrO, MgO, CaO, additionally contains MnOj and ZnO in the following ratio of components, wt.%: 0.8-1.4 0 , 5-3 1-8 1,5-4 The compositions of the proposed enamel are given in table.1. .Table 1

42

3 20

2.5

five

7

1.7 0.8 1.5

39 4

37

9.5

8 17.6 7.5

15 2.5

6.5

4 3 4 3.2

2 4

five

6.5 4

1 1.2

0.8

1, 0.9 0.5 3 1.9 For the preparation of the Frit, on the merit, of composition 2 at the rate of 100, the following materials are used, kg: Quartz sand 39.39 Borax crystal 41, 10 Sodium nitrate 3.94 Aluminum hydroxide 11.47 Kaliyev saltpeter 6.45 Manganese paste, 35 Calcium carbonate 3.38 Trisodium phosphate, 34.77 Zirconium ore Zinc oxide 2.0 Titanium dioxide 4.0 Magnesium oxide 0.9 After pre-shredding, the backing materials have been charged into ordinary industrial smelters ovens, cooked at 1200–1250 ° G, and granulated in water. By adding ceramic pigments to the grinding, colored slips are obtained for subsequent enameling.

Consumption of pigments of yellow, orange, red, brown per 100 mach. frit, mae. h

Color intensity

table 2

3-5

. 4-5

3-4

Uneven

The uniform Schlicker is prepared on the following retu, mac.ch .: Frit. 100 Clay4-5 Pigment (for example, red 1020, 1024, 1023, 1038, orange 1018, 1016, yellow 159, brown VK-95 in combination or separately) 4 Sodium fluorofluoride 0.5 Potassium chloride 0.1 Water 40-50 Based on the described enamelled slurries are deposited on a previously pre-dried metal surface known after pre-drying in a temperature range of 770 ° C. . . Properties offer 1x and known compositions are presented in table 2. The use of enamel enamel 20 will improve the appearance. products, reduce consumption expensive Extending table. 2 worth of pigments, which will allow saving at least 100 thousand rubles per 100 tons of dry slip.

Claims (1)

the fact that, in order to increase the coefficient of specular reflection, color tone and color purity of the coating, it additionally contains MnO ^ and ZnO in the following ratio of components, wt.%: SiO ₂ 37-42 ai ₂ o 3-8 in ₂ of ₃ 14-17 Na ₂ O 15-20 to ₂ o 2.5-4 TiO ₂ 2-5 ^P 2 ° C 4-7 ZrO ₂ 1-4 MgO 0.8-1.4 Cao 0.5-3 MnO ₂ 1-8 Zno 1.5-4. 1 1102774 a Invention refers to Ti0 ₂ 2-7 Niyu decorative anticorrosive P ₂ ° 5 3-9, low-melting glass-enamel coatings ZrO ₂ 0.5-3.5 tiy on products household MgO 0.75-3 vogo appointment thermal trade 5 Cao 0.5-3.5 go equipment and gas apparatus Co ₂ 0. 0.1-0.6 C2 L tours CuO 1-7 Known enamel composition containing The disadvantages of this composition are May.%: low values of SiO- 37-42 10 mirror reflection, color- AI _% Oj '6-11 go tones and color purity of the coating. in ₂ of ₃ 11-15 . Goal of gains - increase in coefficient Na ₂ O 14-18 mirror reflection factor, color to ₂ o 1-3 tint tone and color clarity. TiO ₂ 8-11 fifteen The goal is achieved by the fact that enamel, ^Ρ 2 ° ί 4-8 including S1O ₂ , AI _z 0 ₃ , B ^ Oj, Na ₂ 0, ZrO. 0.5-2.5 ₂ o, τίο ₂ , PO ,, ZrO ₂ , MgO, CaO, up to MgO 0.75-2.25 optionally contains MnO. and ZnO at Cao 0.5-1.5 next ratio of components Co ₄ 0 ₃ 0.01-0.4 twenty wt.%: Having sustainability indicators Si0 ₂ 37-42 in alkaline detergents, gloss αι ₂ ο ₃ . 3-8 and flowability known enamel ®2θ3 14-17 insufficient clarity and brightness Na.O 15-20 colors when stained in yellow, red 25 to ₂ o 2.5-4 ny orange and brown tones. T10 ₂ 2-5 Closest to the proposed Ρ ₂ θ5 4-7 is the composition enamels [2 contents- ZrO. 1-4 total wt.%: MgO 0.8-1.4 SiO ₂ 35-45 .. thirty Cao 0.5-3 A1 „0. w-ϊο ' Mn0 _t 1-8 B ₂ O ₃ 10-15 ZnO. 1,5-4 Na ₂ O 14-20. Compositions proposed enamel are given K ₂ 0 1-3 in table 1. 35 Table 1 Components Content, wt.% _F in the compositions one ] ² _L_i_ SiO ₂ 42 39.5 37 39 ai ₂ o ₃ 3 7.5 8 four Na ₂ 0 twenty 16.5 17.6 fifteen to ₂ o 2.5 3 four 2.5 T10 ₂ 5 four 2 3.2 P.0. 7. 6.5 5 four ' 2 5 Zr0 ₂ 1.7 1,2 one four MgO 0.8 0.9 1.4 0.8 Cao 1,5 1.9 3 0.5 Continuation of the table. one Components