Natural gas can be a low cost alternate source of energy for ladle preheating and molten steel reheating
, he said
According to the authors, "This technology is a low capital cost alternative to electrically powered reheating
facilities which is appropriate for foundry use.
Whether you're microwaving leftovers or reheating
them in the oven, the only accurate way to gauge the doneness of food is to use a meat thermometer to make sure foods reach a safe internal temperature of 165 degrees Fahrenheit.
They are reheating
a lot of takeout food from delis and supermarkets, which have microwave directions.
dinners one-by-one, or in batches, certainly does not promote family togetherness.
Praxair has received over 275 patents for steel-making technologies using industrial gases in innovative, money-saving ways, including technologies for burners, ladles, melting, refining, and reheating
There is no cooling or reheating
between the preforming and blowing stages.
The NSR method involves reheating
the preforms in a temperature-controlled water bath and blowing them without a mold so that they are free to expand without restriction.
This modernization will basically be a doubling of the existing plant's melting and casting capability, constructed adjacent to the existing Melt Shop Facility which will include a new 135-metric ton electric arc furnace shop with ladle furnace, a new thin slab casting machine, and a new tunnel reheating
furnace with a new slab transfer car to feed the existing hot strip mill.
The 6/10 rotary has a special 10-module reheating
oven (the standard 6/6 machine has six modules), which provides greater latitude for processing thick preforms for hot filling, Sidel says.
To effect these changes, a new walking beam reheating
furnace and a Morgan housingless stand breakdown mill will be installed.
Praxair estimates the use of oxy-fuel burners for steel reheating
would increase oxygen consumption by at least 50 percent for most blast furnace-based steel producers.