SU526473A1 - Electrode coating - Google Patents

Description

I

The invention relates to the field of welding and relates to electrode coatings primarily for the use of nanolites of parts operating under conditions of abrasive wear.

Known electrode coating I, containing the following components, wt. %: Marble48

Fluorspar13

Ferrochrome15

Ferromolybdenum10

Ferrotitanium7

Ferrosilicon3

Graphite3

Aluminum powder 1

Soda Ash 0.2

However, this coating does not provide sufficient wear resistance of the weld metal.

The purpose of the invention is to increase the wear resistance of the weld metal.

This is achieved by the fact that the electrode coating additionally contains ferromanganese, ferrovanadium in the following ratio of components, weight. %:

Marble25-35

Fluorspar 25-30

Ferrochrome 18-25

Ferromolybdenum1-2

Ferrotitanium2-7

Ferrosilicon3-5

Aluminum poropyuk 1 -1,5 Ferromanganese8-12

Ferrovanadium1-2

In order to obtain a mixture of coating electrodes, three batches were made containing each weight. %: hydrofluoric chipboard 27.5; ferrochromium 21.5, ferromolybdenum 1.5, ferrotitanium 4.5, ferrosilicon 4, aluminum porous and 1.2 and differing from each other in the content of ferromanganese, equal in each mixture in series, weight. %: 8, 10 and 12 p, respectively, ferrovanadium, 1; 1.5; 2, as well as marble content, constituting an additional up to 100% portion in each mixture. Samples welded to this electrode coating have the following wear resistance characteristics, represented by R table. one.

Table 1

20

25

thirty

In addition, three batches of electrode coating mixtures were prepared, each containing weight. %: ferrochrome 21.5; ferromolybdenum 1.5; ferrotitanium 4,5; ferrosilicon 4; aluminum powder 1,2; ferromanganese 10, ferrovanadium 1.5 and differing from each other in the content of fluorspar equal in the mixture in series, weight. %: 25; 27.5 and 30, as well as a marble content, which constitutes an additional part up to 100% in each mixture.

Electrodes with this coating have the following technological properties, presented in table. 2

table 2

The use of these electrodes makes it possible to increase the durability of parts operating under conditions of intense wear in the case of metal and metal. The electrodes will be used when restoring the drag fingers in the gold mining industry.

Claims (1)

Invention Formula Electrode coating mainly for surfacing of parts working under conditions of friction and impact loads, containing marble, fluoride shiata, ferrochrome, ferromolybdenum, ferrotitanium, ferrosilicon, aluminum powder, characterized in that, in order to improve the wear resistance of the weld metal, it additionally contains ferromanganese and ferrovanadium at components weight. %: the following ratio Marble 25-35 Hydrofluoric chipboard 25-30 Ferrochrome 18-25 Ferromolybdenum 1-2 Ferrotitanium 2-7 Ferrosilicon 3-5 Aluminum Powder 1 - 1.5 Ferromanganese 8-12 Ferrovanadium 1-2 Sources of information taken into account in the examination: I Welding Handbook, volume 2, ed. Sokolova. Gosnauchtekhizdatmaschlit, Moscow, 1962 p. 57, electrode Ш-7.