Page 31 - Glass Machinery Plants & Accessories no. 6-2019

THE WEAR SIZE OF THE TRANSVERSE PLATES SUBJECTED TO EXPLOITATION

Transverse plate diameter, mm The
Before processing After processing After functioning in measuring
ɣK ɣK ɣK

with EDI the technological cycle interval,
mm
Nr.19 Nr.23 Nr.23 Nr.19 Nr.23
17,61 17,586 17,606 17,604 17,6 24,6 -0,006 0,02 0,006
17,206 17,171 17,212 17,21 17,196 34,6 0,004 0,041 0,016
16,82 16,78 16,85 16,81 16,79 44,6 -0,01 0,07 0,060
16,42 16,387 16,409 16,409 16,393 54,6 -0,011 0,022 0,016
16,023 15,99 16,022 16,012 15,995 64,6 -0,011 0,032 0,027
15,61 15,586 15,619 15,61 15,6 74,6 0 0,033 0,019
15,22 15,19 15,224 15,218 15,202 84,6 -0,002 0,034 0,022
14,83 14,792 14,83 14,929 14,804 94,6 0,099 0,038 0,026
14,42 14,397 14,421 14,426 14,401 104,6 0,006 0,024 0,020

ly 11 μm. Sample 23 is studied graphite after functioning in the
from three points of view, at the technological cycle (for 75 hours)
initial stage, then after the appli- in Chisinau Glass Factory we can
cation of electric discharges in notice that dimensions along the
impulse, and, finally, after it was active length have not reached the
subjected to wearing. After the initial quota, while the transverse
transverse plate was subjected to plate (19) has suffered dimen- micro-irregularities which prob-
processing through EDI its diam- sional wearing of about 10 6m on ably induce the increase of wear-
eter increases within admissible certain areas, while on the other ing and disappear after a period
limits, (Fig. 4, curve 3) due to areas the initial dimensions have of its interaction with the glass
graphite deposits on its surface. increased on account of the glass mass; what remains is the phys-
Investigating the part after it has mass adherence. Comparing ico-chemically modified superfi-
functioned in the above described the obtained results concerning cial layer with high properties of
regimes, a decrease of its initial the dimensional wearing of the exploitation which possess high
diameter is visible in all cases transverse plate with and with- resistance to wear.
(Fig. 4). out graphite deposits we may
Fig. 4 shows us that, besides state that those with graphite CONCLUSIONS
the decrease of the transverse deposits possess some reserve of The results of our experi-
plate diameter (19), its increase functioning before they reach the mental investigations allow us to
is sometimes noticed and this initial dimensions and, of course, conclude that:
may be explained by the adher- a considerable reserve before - the graphite layer deposited on
ence of the glass mass to the reaching the value of admissible the surface of the transverse
active surface of the transverse technological wear. plate simultaneously performs
plate. This phenomenon was not The information in the more functions: anti-wear pro-
practically observed in the case of Table shows that the difference tection, it excludes adherence
part 23 covered with the graph- between the transverse plate of the glass mass to its surface, it
ite pellicle. This proves that the diameter after functioning in the is an ointment in solid state, and
graphite layer deposited on the cycle (without graphite deposits) increases the piece refractability;
surface of the transverse plate and the dimensions of the trans- - the formation of metal car-
simultaneously performs more verse plate with graphite pelli- bides with increased resistance
functions: anti-wearing protec- cle formed by applying EDI, the to wear is possible under the
tion, it excludes adherence of wear of the latter is a little higher. graphite pellicle on the active
the glass mass to its surface, This may also be explained by the surface of the transverse plate;
it is an ointment in solid state, fact that if the action of the plas- - the formation of graphite depos-
and increases the part refractabil- ma canal of electric discharges its on the active surface of parts
ity. After measuring the wear of in impulse with the part surface of glass moulding forms doubles
the transverse plate covered with results in the formation of some their durability at least. Q

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