decarburize การใช้
- Carbon also causes annealing the steel in a decarburizing atmosphere, such as hydrogen.
- Steels such as interstitial free steel are decarburized and small quantities of titanium are added to remove nitrogen.
- The decarburized iron, having a higher melting point than cast iron, was raked into globs by the puddler.
- The oxygen in iron oxide and other impurities decarburize the pig iron by burning excess carbon away, forming steel.
- Related decarburizing with air processes had been used outside Europe for hundreds of years, but not on an industrial scale.
- Puddling involved stirring molten cast iron until small globs sufficiently decarburized to form globs of hot wrought iron that were then removed and hammered into shapes.
- The removal of carbon removes hard carbide phases resulting in a softening of the metal, primarily at the surface which are in contact with the decarburizing gas.
- Puddling was a means of decarburizing pig iron by slow oxidation, with iron ore as the oxygen source, as the iron was manually stirred using a long rod.
- On the other hand, pig iron is the eutectic mixture of carbon and iron and needs to be decarburized to produce steel or wrought iron, which was extremely tedious in the Middle Ages.
- This product is strong, can be cast into intricate shapes, but is too brittle to be worked, unless the product is " decarburized " to remove most of the carbon.
- Burning them off causes the melting point to increase towards that of pure iron, and since the temperature of the puddling furnace is less than that which wrought iron melts, decarburized iron in the mixture start to solidify around the puddling bars.
- It can, however, be decarburized to steel or wrought iron by heating it in air for several days . In China, these ironworking methods spread northward, and by 300 BC, iron was the material of choice throughout China for most tools and weapons.
- It can, however, be " decarburized " to steel or wrought iron by heating it in air for several days . In China, these ironworking methods spread northward, and by 300 BC, iron was the material of choice throughout China for most tools and weapons.
- It can, however, be " decarburized " to steel or wrought iron by heating it in air for several days . In China, these iron working methods spread northward, and by 300 BC, iron was the material of choice throughout China for most tools and weapons.
- It is often used on cast-irons to produce malleable cast iron, in a process called " white tempering . " This tendency to decarburize is often a problem in other operations, such as blacksmithing, where it becomes more desirable to austenize the steel for the shortest amount of time possible to prevent too much decarburization.