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Steel is the most important material in almost all sectors of Economy of different countries in the world. It is the important material in making of needles to buildings, land, water, air transport vehicles, space crafts, furnitures, agricultural implements, weapons for defence eqipments and many other items. All should know about materials like plastics, ceramics, glass, steels, composites.
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It's really easy. In essence you have 3 big steps in steel making: melting in furnance, treatment and ferro alloys addings in secondary treatment (to have cleanliness and desired chemical composition) and casting + cutting. Search for online classes that have schemes and more videos (I recommend the steel making with scrap instead of iron ore. It's more impressive visually 😏)
@@chandramoulipakki9110 This is the thing we should change ma'am. Just byhearting or rote learning shouldn't be encouraged to students. A major problem in India. Focus should be given more on understanding it rather than remembering for exams. If students are only made to study "for exams", then we wont be able to create better leaders for the future.
I know it is an ignorant question to you metallurgists, but may i know why it is called pig iron as well as cast iron, both contain the word iron while those have greater amount of carbon than steel?
In short cast iron is iron alloyed with a relatively low carbon content with other controlled elements. Depending on the type and application it is mostly a finished product before being casted into other products. Pig iron is blast furnace smelted iron ore with a relatively high carbon/silica content and is commonly referred to “crude iron” because of its impurities. It’s exclusively an intermediate product of cast iron and steel production. After processing it produces a waste by-product called slag
I expect that it is no different a scenario to what we had in Australia pre WW2. We had a Prime Ministerwho was given the nickname Pig Iron Bob after he sold off Iron pigs to the Japanese and it was kindly returned as armaments. So blast furnace hot metal / iron is transferred by torpedo ladle to a Pig Mill which has mounds on a chain conveyor that the molen metal is poured into. On cooling the pig is removed from the mould. It makes the Iron transportable and also for use in anciliary operations such as foundries.
ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Iytcr3T8ZIg.html they just disconnect the wiring from the top, pull it out with a crane, and drop a new one in
Are you trying to do a project that starts from mining? scrap? for example as explained in this video? a EAF plus CCM system for 50T should be around 50M USD. Not including an oxigen plant and water treatment plant, which should be around 15 to 20M USD. If you are looking to start metal mining and extraction, well those costs are way higher and depends on many factors, such as land, permits, machinery, etc. There are also so many different methods. Some plants spent around 3B USD for a complete system. Hope this helps.
010angelo010 I think you’ve just killed him through a cost based heart attack, I often wonder if people really know how much it costs the run a plant like this, the energy bills a month run into the millions too
@@davehowe4714 the reason I know the costs to start is because I have one. Obviously I didn't spend 3 Billion, but the costs are high. A more realistic number is around 140 million for the 2 blast furnances plus 70 million for the converter, EAF, CCM, and lamination. Electricity and labor depends on the country. Usually a plant that has a blast furnace system needs 8Mva. If you add a line for a converter, EAF, CCM, and lamination your numbers hit around 60Mva for a 30T system. If you start with a small foundry that did 100K ton a year with a ccm and lamination from scrap that would be around 15 million.
Yes and note that the workers are wearing protective equipment. Heavy industries in advanced nations have Occupational Health and Safety LAWS that Companies must adhere to.
Usually lots of dust particles are generated during the mining and other operations. But this dust particles can't be directly charged into the furnace as it will decrease the porosity and choke the furnace. So they are sintered to bind the small particles together. The resulting sinteres have improved mechanical strength and required porosity. This improves the productivity.
@@abhinav1149 Well done..I'd expect that the questioner would have at the very least thanked you for such good info...Crushed small particles of Limestone are also used as a flux along with what is loosely termed "Cold Return Fines"
We provide graphite electrodes necessary for steelmaking. We hope you can see that our price is the most favorable, because we are the supplier and the manufacturer.
