SU958358A1 - Frit for colour enameling - Google Patents

Description

(FRITTA FOR COLOR ENAMELER ..;, 1., The invention relates to compositions of silicate coating enamels intended for coating steel products, in particular, enamel enamel. )- /. -:. The composition of white titanium enamel is known, including , masD: SiOj.tO-47 Al. 0-7; VGYAZ., 5; 16.0; Ori, 1;, 6; MgO 0-1 TiO, 16.2-19.0; F 3-5 over 10v %, to which, inorganic pigments of domestic production are added for grinding of coatings for grinding, the lightest for the color enamel coating 2J, containing May. SI04. A1a .0з 3.3 Ва.0. 17,5 ТЮ (;, 17,5 2.7 4,2 V over 100)

; lokrti: with the addition to which dulev pigment fP 232 in an amount of get a lemon-yellow coating. However, the known compounds are not; it is possible to obtain a quality coating of enamel on the products due to the poor quality of the materials used by the yma: thermal instability of the color at a high temperature, insufficient pacTekaeMocTbtp of the enamel, the presence of a large number of defects. The goal of the invention is to increase the spreadability, provide thermal color stability and extend the burning surface of the coating. This goal is achieved by the fact that the yritta for a colored enamel coating, including, M (),,. Bjp, T i 0, F, additionally contains N10 in the following ratio of components, masD;

33.0-39.0 2.0-5.5

lO.O-U.O 4.0-6.5

17.0-20.0

95ft3584

TiOT.15,5-19,0

fi3,5-6,0

NiOi.1,3-, 0

In tab. 1 shows the compositions. 5 and in table. 2 - their properties. Table 1

Temperature range firing. one . 800-900 800-900 820-900

52

51

9

95 85 yellow 85 kelty

.Sustable Resistant

Table j2

i,

32

52

91.8

93 Si.

92 85

Thermally unstable Yellow Yellow

bloom with

Stable by dividing, wah wa gloss is insignificant, prone to defect gap

II

Claims (2)

Enamels 820-920, 800-900 8 0-880 The following materials can be used as raw materials: sand, technical alumina, dioxide {guitar, sodium nitrate, calcareous nitrate, boric acid, borax (prays and nickel smelting. Melting of enamel pro rotary kiln is ized at i kQ1350 C 2 h 20 min - 2 1 15 min. To obtain a bright yellow enamel, add / b of left pigment No.232 or grinding using enamel. coatings on the soil and improve the quality of steel enameled products by reducing (percentage of processing due to the fault of the enamel and the production of products with a higher finishing group, which will make it possible to get up to one hundred rubles in profit per 21 tons of dishes. Invention Frit for a colored enamel coating including SiOe., .i, Na.ap , 9 86 Kdr,, TGO, F, characterized in that, in order to increase flowability, ensure thermal color stability and extend the firing interval of the coating, it additionally contains N10 in the following ratio of components, wt .: 33-39 2- 5.5 "-6.5 17-20 15.5-19 3.5-6 1.3-lt Sources of information taken into account When the examination 1.Vargin VV Enameling of metal products. L., Mechanical Engineering, 1972, p. 133-136. 2. Mechanization, automation of production and improvement of the quality of steel enamelware. Proceedings of the All-Union Conference in Dnepropetrovsk, 1971 Sverdlovsk, 1972, p. 57-58.