open hearth furnace वाक्य

उदाहरण वाक्य

1. The metal was then melted down in an open hearth furnace.
2. This process is very similar to open hearth furnace steelmaking.
3. Basic oxygen steelmaking eventually replaced the open hearth furnace.
4. There were also two open hearth furnace steel mills.
5. Open hearth furnace was first developed by German-born engineer Carl Wilhelm Siemens.
6. The last open hearth furnace in the former East Germany was stopped in 1993.
7. The process involved modifying an open hearth furnace to use oxygen instead of air.
8. By 1962 five of the six open hearth furnaces at the plant had been converted.
9. This uses open hearth furnaces to convert pig iron to steel by burning off excess carbon.
10. Open hearth furnaces continued to operate until 1968, when they were replaced by electric arc furnaces.