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What was the name of the furnace invented by Pierre Martin and Werner Siemens?
The open hearth furnace.
When was the Open Hearth Furnace invented?
In 1865, the French engineer Pierre-Émile Martin took out a license from Siemens and first applied his furnace for making steel. Their process was known as the Siemens-Martin process, and the furnace as an "open-hearth" furnace.
How many types of furnaces are there?
* Walking Beam Furnace * Walking Hearth Furnace * Roller Hearth Tunnel Furnaces for thin slabs * Rotary Hearth Furnaces * Pusher Furnaces
What two methods of making steel changed the steel industry?
The Open Hearth Furnace and the Bessemer Process <- thanks veeeeeeerrrrrrrrrrryyyyyyyyyyyyyy mmmmmmuuuuuuuuuuuucccccccccccccccchhhhhhhhhhhhhhhhhhh!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
What was puddling used for in gold fields?
Wrong metal. Puddling was used in converting iron ore into iron and steel in an open hearth furnace. Not gold.
Why is the hearth important?
Why is hearth important to the greeks
Why is hearth important?
Why is hearth important to the greeks
How the open hearth process became obsolete?
Because of small termal efficiency, high prices of oil, long duration of process,.... Today steel is mainly made by electric arc furnace and by converters. Converters use only oxygen for refining blast furnace iron. Electric arc furnaces can melt scrap steel much faster than in the old open hearth furnaces. Much of disadvantages of open hearth furnaces are solved in electric arc furnaces and converters. Open hearth furnaces can't melt high quality alloy steels, but they can melt very good quality construction steels. They are still in use by Russians about 30% and Ukrainians 50% and other former soviet countries. The open hearth furnaces was more then a century the symbol of a steel making.
What are the disadvantage of open hearth process?
It took a long time
What is the size of furnace hearth in a modern blast furnace?
over 1.5 metres i would say over 1.5 metres i would say
Difference between walking beam and walking hearth furnace?
A walking beam furnace allows the product to be heated from all sides, where a walking hearth furnace only alloys product to be heated from the top and is more suitable for thinner products. There is no major mechanism difference between a walking hearth and a walking beam furnace. For a walking beam furnace, an actual walking beam will lift the product and move it forward. Then the product is lowered onto the stationary beams. While the load is resting on the stationary beams the walking beam moves underneath the product back to the home position ready to perform another walk. Whereas for a walking hearth furnace, portions of the refractory lined hearth are used to raise the product and move it toward the discharge in a walking fashion. Both mechanisms of moving the product to the discharge, are almost identical.
What is the Beseemer process?
The beseemer process is an inexpensive industrial process for the mass production of steel from molten pig iron prior to an open hearth furnace. This process is named after it's inventor Henry Beseemer.
