SU1053962A1 - Composition of slide gate plate coating - Google Patents

Abstract

I. COMPOSITION OF THE POKRYGGY OF THE PLATES OF THE SHIBER BLOCK, including powdered graphite, which is distinguished by the fact that, in order to reduce the drain between the gate plates, it additionally contains ground beytonite, ground asbestos, water solution of liquid glass with the following ratio of components, Maci. Powdered graphite 52-60 Ground bentonite 13-17 MoloTbifi asbestos 2-5 Aqueous solution of liquid glass, Remaining 2. The composition of the coating according to claim 1, which is due to the fact that the aqueous solution of liquid glass contains 4555% glass. i

Description

The invention relates to metallurgy, in particular to coatings used to seal the gap between the moving parts of bottom bottom metal release devices. Coating compositions for machines and locking devices are known that are assembled from inside the bucket and provide bottom-free metal release 1J. The disadvantage of the compositions is that during the operation of the stopper, they are unreliable and require heavy physical labor when mounted inside the bucket. The closest to the present invention is the composition of the slip layer between the individual h-astator, consisting of a mixture of powdered crystalline graphite and machine oil 2 /. However, at high temperatures () - | 600 C) the oil burns out or destroys. a resinous material that leads to the slipane parts of the shutter, a dramatic increase in friction and the efforts required to overcome it, usually created with the help of hydraulic exercises. The 11th invention of the invention is the reduction of the tre yi mezzad of the gate shutter. The goal is achieved by the fact that the coating composition of sliding gate plates, including powdered graphite, additionally contains ground bentonite, ground asbestos, an aqueous solution of liquid glass in the following ratio of components, May. %: Powdered graphite 52-60 Ground bentonite 13-17 Ground asbestos2-5 Aqueous solution of molten glass Else Aqueous solution of liquid glass contains 45-55% glass. The difficult operating conditions of the shutter and lapping of the refractory blocks to each other in the wet and dry state determine the empirically studied influence of the proportions of the components on the properties of the mixtures. The main results of the study are shown in the table. The testing of the composition of the slip layer was carried out on flat specimens and in sliding gates. Compared with limestone composition, the use of a slip layer makes it possible to obtain an eco-yield of about 3 mp | 6.

30,40,48

52,55,60

Bentonite

6,10,12 ground

13,15,17

 large friction Significant friction Increased friction Satisfactory

5,70,80 Increased precipitability of graphite

Heavy shedding of graphite

Very strong shedding and vyadvanne metal

There is not enough communication between the particles.

Satisfactory Slipannea in the wet state does not allow for a good quality grind. Contents lU- 1 miuiTjj - - | Lll J J-J J L j g g Ingredient: I average less than average mean | b Ground asbestos Aqueous solution of liquid 18,26,32 10,15,17 glass Content of liquid 45., 50,55 glass in aqueous solution 30, 40,43 thief

, Continuation of table 7, 34 57 Operational properties Slip layer produces microcracks during drying Satisfactory. The polishing of the surface of the blocks is aggravated. Clumping And poor-quality alignment. Satisfactory. Flow of the mixture from the base. Weakening of the layer connection with the main one. Satisfactory. Particulate particles are formed

Claims (1)

1. COMPOSITION OF COATING PLATES OF A GATE VALVE, including powder 2. The coating composition according to claim 1, wherein the aqueous liquid glass solution contains 4555Z glass. > 1 . 1053962 1