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What is the most important heat treatment for hardening steels?
carburizing
Will American cd's work in Australia?
Yes it can work Yes it can work Yes it can work Yes it can work
Why doesn't your torch work?
my torch does work though...
Do trainers work for cracked games?
Yes they work for cracked games.
What is a planning computer workstation work?
planning computer workstation work ?
What is the active carburizing gas in pack carburizing?
either carbon monoxide or carbon dioxide, im still trying to figure that one out :)
What is carburising?
also spelled Carburizing, a form of Heat Treatment.
What is the most important heat treatment for hardening steels?
carburizing
For welding high carbon steel which type of flame is used?
carburizing flame is used
What is pack carburizing?
Check out: http://www.efunda.com/processes/heat_treat/hardening/diffusion.cfm parts are packed in a high carbon medium such as carbon powder or cast iron shavings and heated in a furnace for 12 to 72 hrs at 900degree celsius. at this temp co gas is produced which is a strong reducing agent
What types of flame are obtained in oxy-acetylene gas welding?
When the correct amount of Oxygen is mixed with the Acetylene a NEUTRAL flame is produced. Less than that amount produces a CARBURIZING flame. Too much Oxygen creates an OXIDIZING flame. Most welding/cutting is done with a NEUTRAL flame but all flame adjustments have their purpose.
What is 'carburising' why and how it is done?
Carburizing is a method of hardening iron or steel by a heat treatment that causes it to absorb carbon liberated from a carbon bearing material, such as charcoal or carbon monoxide.
What are the three types of acetylene welding flames?
Mixing Acetylene and Oxygen in the correct proportions produces an extremely hot flame. Using just enough Oxygen so that the Acetylene is almost completely consumed in the flame is called a Neutral Flame. In most welding and cutting applications you would utilize this flame. Reducing the amount of Oxygen produces a Carburizing Flame. It is yellowish and not as hot as a Neutral Flame, but, is used in certain situations. Welding Aluminum is one. Increasing the Oxygen produces an Oxidizing Flame. It produces a flame that is pointed, colder, and louder than a Neutral Flame. It wastes fuel and isn't as efficient as a Neutral Flame.
What is BaCo3?
barium carbonateBaCO3 A white powder with a melting point of 174°C; soluble in acids (except sulfuric acid); used in rodenticides, ceramic flux, optical glass, and television picture tube's.It is also use for pack carburizing as a energiser i.e. pack carburizing is surface hardaning process in which %of carbon in steel is increases in surface area, by heating the samples in seal packed steel box at temprature range 8550c-9550c, and these boxes are filled with active charcoal powder and BaCO3 in 9:1 praportion so BaCO3 produce CAtomic (nasent C). this C atom penitrate in steel surface.
Which gas welding flame is the hottest?
It's called a Neutral flame. Enough Oxygen is added to the fuel to allow almost complete combustion. The remaing fuel is combined with the surrounding air and burned. This is the best flame for most cutting and welding operations. Too little Oxygen produces a Carburizing flame. It is yellow and produces smoke. A slightly Carburizing flame is used when welding Aluminum. Too much Oxygen produces an Oxidizing flame. It begins to sound louder and the inner flame comes to a point.
What chemical can be used to make iron melt?
Carbon is commonly used to make iron melt by forming a eutectic mixture. This process is known as carburizing or carbonization of iron. The addition of carbon lowers the melting point of iron by forming a eutectic mixture near 1153°C (2107°F).
What are uses of each one of the oxyacetylene flames?
There are three distinct types of oxy-acetylene flames, usually termed: -Neutral: The neutral flame will usually have no chemical effect on the metal being welded. -Carburizing (or excess acetylene): It will cause an increase in the carbon content of the weld metal. -Oxidizing (or excess oxygen ): It will oxidize or "burn" some of the metal being welded. The type of flame produced depends upon the ratio of oxygen to acetylene in the gas mixture which leaves the torch tip.
