Word Finder - converter

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A person or thing that converts.

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A patient with a certain condition that subsequently develops into another condition.

definition

A retort, used in the Bessemer process, in which molten cast iron is decarburized and converted into steel by a blast of air forced through the liquid metal.

The converter is then turned upright into the position shown in fig.

It is in large part because of this shallowness, which contrasts so strongly with the height and roominess of the Bessemer converter, that the process lasts hours where the Bessemer process lasts minutes, though there is the further difference that in the open-hearth process the transfer of heat from flame to charge through the intervening layer of slag is necessarily slow, whereas in the Bessemer process the heat, generated as it is in and by the metallic bath itself, raises the temperature very rapidly.

But no part of the Bessemer converter is of a shape easily affected by the heat, no part of it is exposed to the heat on more than one side, and the converter itself is necessarily cooler than the metal within it, because the heat is generated within the metal itself by the combustion of its silicon and other calorific elements.

In it the steel heats the converter, whereas in the open-hearth and crucible processes the furnace heats the steel.

But the oxygenated metal might be prepared easily in a Bessemer converter.

In the duplex process the conversion of the cast iron into steel is begun in the Bessemer converter and finished in the openhearth furnace.

In the most promising form of this process an acid converter and a basic open-hearth furnace are used.

But if the conversion is only begun in the converter and finished on the open-hearth, then there is no need of regulating the temperature in the converter closely, and variations in the silicon-content of the pig iron thus become almost harmless in this respect.

But if the silicon of the pig iron is removed by a preliminary treatment in the Bessemer converter, then its presence in the pig iron is harmless as regards the open-hearth process.

Looking at the duplex process in another way, the preliminary desilicidizing in the Bessemer converter should certainly be an advantage; but whether it is more profitable to give this treatment in the converter than in the mixer remains to be seen.

The melting can be done much more cheaply in a cupola or open-hearth furnace, and the first part of the purification much more cheaply in a Bessemer converter or open-hearth furnace.

Electric furnaces are at an advantage over others as regards the removal of sulphur and of iron oxide from the molten steel, because their atmosphere is free from the sulphur always present in the flame of coal-fired furnaces, and almost free from oxygen, because this element is quickly absorbed by the carbon and silicon of the steel, and in the case of arc furnaces by the carbon of the electrodes themselves, and is replaced only very slowly by leakage, whereas through the Bessemer converter and the open-hearth furnace a torrent of air is always rushing.

But tranquillity is clearly imp ssib'e in the Bessemer converter, in which the metal can be kept hot only by being torn into a spray by the blast.

In short the electric furnaces can be used to improve the molten product of the Bessemer converter and open-hearth furnace, essentially because their atmosphere is free from sulphur and oxygen, and because they can therefore remove sulphur, iron oxide and mechanically suspended slag, more thoroughly than is possible in these older furnaces.

They are not likely to displace either the open-hearth furnace or the Bessemer converter, because their normal work is only to improve the product of these older furnaces.

When the former is used it is roasted with calcium sulphate or alkali waste to form a matte which is then blown in a Bessemer converter or heated in a reverberatory furnace with a siliceous flux with the object of forming a rich nickel sulphide.

In America the usual method is to roast ores or concentrates so that the matte yielded by either the reverberatory or cupola furnace will run from 45 to 50% in copper, and then to transfer to the Bessemer converter, which blows it up to 99%.

The only practical mode of doing this, as yet devised, is by lining the converter with a silicious mixture.

The other items of cost are labour, the quantity of which depends on the mechanical appliances provided for handling the converter shells and inserting the lining; and the blast, which in barrel-shaped converters is low and in vertical converters is high, and which varies therefore from 3 to is lb to the square inch.

The quantity of air consumed in a converter which will blow up about 35 tons of matte per day is about 3000 cub.

The slag is then poured and skimmed, the blast turned on and converter retilted.

Pyritic smelting is a development of the Russian engineer Semenikov's treatment (proposed in 1866) of copper matte in a Bessemer converter.

With pyritic smelting a sulphuretted copper ore, fed into a cupola in the morning, can be passed directly to the converter, blown up to metal, and shipped as 99% bars by evening - an operation which formerly, with heap roasting of the ore and repeated roasting of the mattes in stalls, would have occupied not less than four months.

A large furnace and a Bessemer converter, the pair capable of making a million pounds of copper a month from a low-grade sulphuretted ore, will not occupy a space of more than 25 ft.

Fully controlled three-way catalytic converter with two oxygen sensors Six-speed gearbox with helical gears.

The MOT regulations say nothing about a vehicle having a catalytic converter.

The new exhaust with a two-way catalytic converter is an efficient back up for a more evolved injection system.

The exhaust is made from stainless steel, with built-in catalytic converter.

The amplified sensor signals are converted to digital data with a microprocessor-controlled integrating A/D converter.

The function installs a forward type converter to convert string values to numerical representation type values.

At the moment I am building a Morse code reader to interface to my 64K ZX-81 using a tone decoder and A/D converter.

The website provides a free currency converter which will give you the current exchange rate from GBP to your own currency.

Next problem to sort out was the torque converter.

Now you have a cool way to implement a DAC, a digital-to-analog converter.

The website provides a free currency converter which will give you the current exchange rate from GBP to your own currency converter which will give you the current exchange rate from GBP to your own currency.

Most welcome is the simple, but remarkably efficient, currency converter.

Where no three-phase electricity is available and single-phase motors are unsuitable, a single to three-phase converter may be the only answer.

Ned Minns Ned is developing a novel floating oscillating water column wave energy converter.

It's a converter which changes two microphone inputs into a USB port.

It is a good solution if you have a very simple layout. latex There is a latex to pdf converter.

The result will be the converter power rating in Watts for 100% duty factor, often misnamed duty cycle.

Lists a currency converter, currency cheat sheet and a travel expense manager.

Pig iron is refined in a converter and then poured into molten iron silicate slag.

The hydraulic torque converter is an extension of the principle employed in a hydraulic coupling.

The gearbox was removed and rebuilt with tweaks and an uprated stall speed torque converter.

The wide converter optional lens features an ultra wide-angle 21 mm (when converted to 35 mm format camera ).

Century's converter can reach to a full 33% wider angle of view, delivering true widescreen.

Now in an acid-lined converter the slag is necessarily acid, because even an initially basic slag would immediately corrode away enough of the acid lining to make itself acid.

The carbon of the pig iron, burning as it does only to carbonic oxide within the converter, does not by itself generate a temperature high enough for the needs of the process.

If any individual blow proves to be too hot, it may be cooled by throwing cold " scrap " steel such as the waste ends of rails and other pieces, into the converter, or by injecting with the blast a little steam, which is decomposed by the iron by the endothermic reaction H20+Fe=2H+Fe0.