METAL FIRESPotassium, sodium and ca

METAL FIRES
Potassium, sodium and calcium decompose water readily, liberating
hydrogen. These metals are all used in industry but not as widely as the “light
metals” which are widely used in aircraft and motor vehicles industries and in
the trades where lightness is desirable attribute. Magnesium, some of its
alloys and titanium are easily ignited when in the forms of wire, powder,
turnings of swarf: aluminum in similar forms is capable of burning.
The dusts may form inflammable and explosives mixture with air.
Water applied to any of these fires is decomposed, giving off hydrogen,
which aggravates the fire and may give rise to explosions which would
scatter the burning metal. Other metals too, e.g. zinc, in finely – divided
form are combustible.
Water, foam, carbon tetrachloride, methyl bromide, chlorobromomethane
or carbon dioxide, in fact, none of the usual extinguishers may be used on
metal fires. They are all ineffective and most of them are dangerous, because
they are liable either to cause the explosion or to do more harm than good by
scattering the burning metal.
Gas-expelled dry powder extinguishers are unsuitable for the latter
reason, but there is one specially-constructed model which discharges
through a long tube in a cone-shaped nozzle by which powder is delivered
lightly onto the fire. The solid extinguishing agents that find little application in
firefighting generally, are of value in dealing with metal fires. They must be
applied gently in order to cover the burning metal without disturbing it, and
care is necessary, as some scattering may, nevertheless, occur. Dry sand,
talc, mixture of asbestos dust and graphite may be used. Asbestos handclothes
or blankets are useful where small quantities of metal are involved,
not so much to extinguish the fire as to prevent its spread.

Результаты (английский) 1:

METAL FIRESPotassium, sodium and calcium water decompose readily, liberatinghydrogen. These metals are all used in industry but not as widely as the "lightmetals which are widely used in aircraft and motor vehicles industries and inthe trades where lightness is attribute is desirable. Magnesium, some of itsand titanium alloys products are easily ignited when in the forms of wire, powder,turnings of swarf: aluminum in similar forms is capable of burning.The dusts may form inflammable and explosives mixture with air.Water applied to any of these fires is decomposed, giving off hydrogen,which aggravates the fire and may give rise to explosions which wouldScatter the burning metal. Other metals too, e.g. zinc, in finely-dividedform are combustible.Water, foam, carbon tetrachloride, methyl, a major, chlorobromomethaneor carbon dioxide, in fact, none of the usual extinguishers may be used onmetal fires. They are all ineffective and most of them are dangerous, becausethey are liable either to cause the explosion or to do more harm than good byscattering the burning metal.Gas-expelled dry powder extinguishers are unsuitable for the latterreason, but there is one specially-constructed model which dischargesthrough a long tube in a cone-shaped nozzle by which powder is deliveredlightly onto the fire. The solid extinguishing agents that find little application infirefighting generally, are of value in dealing with metal fires. They must beapplied gently in order to cover the burning metal without disturbing it, andcare is necessary, as some scattering may, nevertheless, to occur. Dry sand,TALC, a mixture of asbestos dust and graphite may be used. Asbestos handclothesor blankets are useful where small quantities of metal are involved,not so much to extinguish the fire as to prevent its spread.

Результаты (английский) 2:

FIRES METAL
Potassium ™, sodium and calcium The decompose readily water, liberating
hydrogen. Metals are all for These USED in the industry Widely But not as with as with the "light
metals" the which are Widely USED in motor vehicles and aircraft's industries has and in
the trades where clause lightness instead is the attribute to desirable. Magnesium, some of its'
Alloys has and titanium are Easily Ignited the when in the the forms of wire, powder,
turnings of swarf: aluminum in Select Similar the forms is Capable of burning.
Of The Dusts may The form inflammable and Explosives Mixture with air.
Water Water an applied to the any of for These is decomposed fires, giving scene off hydrogen,
the which aggravates the of fire and may give-rise to explosions Would the which
a scatter the burning metal. Metals of too Other, the eg zinc, in FINELY - DIVIDED
. The form are combustible
Water Water, foam, carbon tetrachloride, methyl bromide, chlorobromomethane
or carbon dioxide, in Fact, none of the usual of Extinguishers may the BE USED on
metal fires. For They are all ineffective and are most of Them are dangerous, Because
for They are liable to an either to a cause the explosion or to do more harm than good by
Scattering the burning metal.
By Gas-Expelled dry powder of Extinguishers are Unsuitable for the the latter
reason, But there is one's Constructed the model-Specially the which discharges the
through a long a tube in a cone-shaped nozzle by the which powder is Delivered
lightly Onto the of fire. Solid extinguishing agents of The That the find little application in
firefighting Generally, are of value in of metal are dealing with fires. The BE a must for They
an applied gently in order to cover the burning metal without disturbing IT, and
care is Necessary, as with some Scattering may, Nevertheless, On occur. Sand the Dry,
TALC, Mixture of a dust and asbestos may GRAPHITE the BE USED. Handclothes Asbestos are
or blankets are Useful where clause of small Quantities are metal is involved,
not SO much to extinguish of fire as with the to Prevent its' spread.