冶金英語自學(xué)指導(dǎo)書-文庫吧資料
2025-04-12 12:18本頁面
【正文】 onite, ilmenitePhrases’ UsagePelletize, ignite, storage, stick, strengthUnit 3 The Blast Furnace PlantLead inA plete balst furnace plant consequently prises many most important of these are: the blast furnace, bunkers, charging equipment, the cast house, hot blast stoves, top gas removal and cleaning equipment.Key words and expressionsExternal, undertake, belt, skip, distribute, bellless, seal, ratating chute, liquid, float, separate, skimmer, pool, dam, runner, iron runnerPhrases’ UsageAdjacent to sth., by means of, facilities, (be) refferred to as, deliver sth. To sb.Unit 4 Hot Blast StoveLead inEach hot blast stove is a large exchanger to preheat blast furnace air.Key words and expressionsChecker mass/chamber, checker brick, on blast, coke oven, back draft, equal toPhrases’ UsageequalUnit 5 New Developments in Iron MakingLead inDring the past century, many efforts were made to develop processes for producing iron for steelmaking that could serve as alternatives to the conventional blast furnace. Direct reduction technology is monly classed into two types: gas reduction process, and reduction process with solid reducing agents.Key words and expressionsTake the plce of, be classified as, carbon monoxide, direct reduced iron(DRI), go into production, gas reformer, bustle pipe, charge solid, gravity feed, seal legs, scrubber, reformer tube, rotary kiln furnace, lime shell, melter gasfier, iron bath reactor Phrases’ Usagebe exposed to, together withUnit 6 Raw Materials of SteelmakingLead inThe hot metal tapped from the blast furnace is the principle raw materials used for steelmaking. Besides hot metal, further charge materials are: steel scrap, sponge iron, slag formers, alloying agents and oxidizing agents.New words and expressionsalloying agent, slag former, process scrap, eoxidation, sheared end, tramp element, imput, BOF(basic oxygen furnace), account for, participate, rejected material, finished article, dressing plant, loose scrap, quantity, process scrap, consist of/inUnit 7 Principles of Modern SteelmakingLead inCurrently, there are two major steelmaking processes, the more popular being the oxygen processes based on hot metal from a blast furnace and scrap,and the less popular being the electric arc process which is suitable for making steel from highquality industrial scrap or from prereduced pellets.Key words and expressionsRefining, slagging, desiliconization, dephosphorization, remainder, dioxide, oxidize, accelerate, sulphide, gaseous, atmosphere, volumePhrases’ UsageBe concerned with, as a whole, the greater…the greater…Unit 8 The LD PracticeLead inOxygen topblowing converter Key words and expressionsMagnesite, standby, standby lance, mechanism, sequence, tray, crane, dump, charge, tilt, vertical, jet, penetrate, circulation, evolution, free running slag, splash, basicity, tapinghole, pouring ladle, filing, taptotap time, heat, duration of a heat, inspection, the LD practice, pearshaped converter, oxygen lance, sample analysis, on the contrary, pouring ladle, oxygen jetPhrases’ Usag
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