Flama para fundir metales en fundición o Micro fusión
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Tipo de flama para fundir metales en fundición o Micro-fusión
La FLAMA NEUTRAL se obtiene cuando existe la cantidad suficiente
De oxígeno para eliminar la porción amarilla de la flama.
La FLAMA REDUCTORA se obtiene cuando se cierra parcialmente la válvula del oxigeno hasta lograr una sección amarilla en la flama.
Una FLAMA OXIDANTE se logra dejando salir mas oxígeno en el soplete y se escucha un sonido de "siseo" ... zzzzzzz.
Para soldar joyería o fundir metales usar
La Flama Neutral o la Flama Reductora.
Tipo de flama para fundir metales
En fundición o Micro-fusión
El ajuste adecuado de la flama cuando se funde los metales de oro o plata es importante para prevenir la oxidación de estos.
El mejor tipo de flama para fundir metales es la Flama REDUCTORA la cual requiere de la menor cantidad de aire u oxigeno. Este tipo de flama no es tan potente (fundiendo el metal rápidamente) como la Flama Oxidante, sin embargo da mejores resultados en el metal. Todo el aire u oxigeno contenido en la mezcla de los gases es consumido por lo que no existe posibilidad de que este se combine con el metal fundido, evitándose así la formación de nuevos óxidos y reduciendo de paso los óxidos previamente formados en el metal.
En el metal fundido se puede observar la presencia de una nata de oxidación en su superficie que indica la presencia de una Flama Oxidante cuando se dirige la zona azul clara de la flama sobre el metal. Sin embargo, cuando se retira la flama del metal fundido a una distancia en donde su zona azul clara, amarilla y azul marino entra en contacto con el metal, entonces la flama se convierte en REDUCTORA. El metal se vuelve más claro y brillante como un espejo. Si la flama se aleja aun más y entra en contacto con el metal la parte azul marino de esta, cuyo aspecto es ancho como el de una brocha, la nata de oxidación regresa a la superficie del metal.
Por tanto, el primer cono azul claro que sale de la boca del soplete no debe de dirigirse al metal, ya que esta flama posee la mezcla tanto del gas como el oxigeno o aire sin combustión completa y por tanto no es muy caliente. El segundo cono inmediatamente después del primero de aspecto azul claro + amarillento, es la zona REDUCTORA la cual se debe de dirigir hacia el metal para fundirlo y mantenerse a unos 3 cm de distancia del metal. El siguiente cono es de color azul claro y de tamaño muy grande, es una zona de oxidación.
La zona de Reducción de la flama es la que se debe siempre mantener en contacto con el metal para fundirlo tanto en la plata como en el oro.
Una flama REDUCTORA es fácil de obtener y observar cuando en un soplete se abre primero el gas y posteriormente se deja salir el oxigeno de manera paulatina hasta que la flama amarilla apenas desaparece.
Tipo de flama para fundir metales en fundición o Micro fusión
Primera Imagen - Flama Reductora
Segunda Imagen - Flama Neutral
Tercera Imagen - Flama Oxidante
Un soplete con oxigeno y gas butano puede alcanzar
Una temperatura de 2757 °C
Un soplete con aire y gas butano puede alcanzar
Una temperatura de 1895 °C
Un soplete con oxigeno y acetileno puede alcanzar
Una temperatura de 3482 °C
Un soplete con aire y acetileno puede alcanzar
Una temperatura de 2325 °C
Soplete marca Smith con extensor con boquilla pequeña es para cortar acero, sin embargo fue modificada para poder fundir plata u oro (se corto un poco la punta y se amplio la salida de esta para que la flama no fuera tan aguda y maltratara tanto el metal). La FLAMA REDUCTORA es la imagen que se encuentra en medio.
Tipo de flama para fundir metales en fundición o Micro fusión
Flame to melt metal smelting or Micro melting
Type of flame for melting metal casting or micro fusion
The NEUTRAL FLAME is obtained when there is enough
Oxygen to remove the yellow portion of the flame.
REDUCING FLAME is obtained when partially closed oxygen valve until a yellow section in the flame.
A OXIDIZING FLAME is achieved by letting out more oxygen in the torch, and you hear an audible "hiss" ... ZZZZZZZ.
To weld metal smelting or jewelry this one is use
The Flame Neutral or Reducing Flame.
Type of flame to melt metals
In casting or micro fusion
The correct setting of the flame when it melts the metals gold and silver is important in preventing the oxidation.
The best type of flame to melt metals is the REDUCING Flame which requires the least amount of air or oxygen. This type of flame is not as powerful as the Oxidizer Flame, however gives better results in the metal. All the air or oxygen content in the mixture of gases is consumed so that there is no possibility that this is combined with molten metal, thereby avoiding the formation of new oxide and reducing the oxides previously formed step in the metal.
In the molten metal can observe the presence of an oxidation cream on the surface indicating the presence of a Flame Oxidizer when leading light blue area of the flame on the metal. However, when the flame is removed from the molten metal at a distance where its zone light blue, yellow and blue in contact with metal, then the flame becomes LIPO. The metal becomes more clear and bright as a mirror. If the flame further away and came into contact with the metal part of the blue that looks like a wide brush, cream returns to the surface oxidation of the metal.
Therefore, the first blue cone coming from the mouth of the torch should not go to the metal, as this flame has a mixture of both gas and oxygen or air without complete combustion and therefore is not very hot. The second cone immediately after the first appearance blue and yellow is the reducing zone which should lead to the metal to melt and kept at about 3 cm away from the metal. The next cone is light blue and very large size, is a zone of oxidation.
Reduction zone of the flame is the one should always keep in contact with the metal to melt both the silver and gold.
REDUCING A flame is easy to obtain and observe when a torch opens first gas and then let out oxygen so slowly until the yellow flame just disappears.
Type of flame to melt metal smelting or melting Micro
First Image - Reducing Flame
Second Image - Neutral Flame
Third Image - Oxidizing Flame
A torch with oxygen and butane gas can reach
A temperature of 2757 ° C
A torch with butane gas and air can reach
A temperature of 1895 ° C
A torch with oxygen and acetylene can reach
A temperature of 3482 ° C
An air-acetylene torch can reach
A temperature of 2325 ° C
Mark Smith Torch with small nozzle extender is to cut steel, but was modified to melt silver or gold (cut a little wider end and the start of this so that the flame is not so sharp and mistreated both metal .) REDUCING FLAME is the image that sits in the middle.
Type of flame for melting metal casting or micro fusion
The NEUTRAL FLAME is obtained when there is enough
Oxygen to remove the yellow portion of the flame.
REDUCING FLAME is obtained when partially closed oxygen valve until a yellow section in the flame.
A OXIDIZING FLAME is achieved by letting out more oxygen in the torch, and you hear an audible "hiss" ... ZZZZZZZ.
To weld metal smelting or jewelry this one is use
The Flame Neutral or Reducing Flame.
Type of flame to melt metals
In casting or micro fusion
The correct setting of the flame when it melts the metals gold and silver is important in preventing the oxidation.
The best type of flame to melt metals is the REDUCING Flame which requires the least amount of air or oxygen. This type of flame is not as powerful as the Oxidizer Flame, however gives better results in the metal. All the air or oxygen content in the mixture of gases is consumed so that there is no possibility that this is combined with molten metal, thereby avoiding the formation of new oxide and reducing the oxides previously formed step in the metal.
In the molten metal can observe the presence of an oxidation cream on the surface indicating the presence of a Flame Oxidizer when leading light blue area of the flame on the metal. However, when the flame is removed from the molten metal at a distance where its zone light blue, yellow and blue in contact with metal, then the flame becomes LIPO. The metal becomes more clear and bright as a mirror. If the flame further away and came into contact with the metal part of the blue that looks like a wide brush, cream returns to the surface oxidation of the metal.
Therefore, the first blue cone coming from the mouth of the torch should not go to the metal, as this flame has a mixture of both gas and oxygen or air without complete combustion and therefore is not very hot. The second cone immediately after the first appearance blue and yellow is the reducing zone which should lead to the metal to melt and kept at about 3 cm away from the metal. The next cone is light blue and very large size, is a zone of oxidation.
Reduction zone of the flame is the one should always keep in contact with the metal to melt both the silver and gold.
REDUCING A flame is easy to obtain and observe when a torch opens first gas and then let out oxygen so slowly until the yellow flame just disappears.
Type of flame to melt metal smelting or melting Micro
First Image - Reducing Flame
Second Image - Neutral Flame
Third Image - Oxidizing Flame
A torch with oxygen and butane gas can reach
A temperature of 2757 ° C
A torch with butane gas and air can reach
A temperature of 1895 ° C
A torch with oxygen and acetylene can reach
A temperature of 3482 ° C
An air-acetylene torch can reach
A temperature of 2325 ° C
Mark Smith Torch with small nozzle extender is to cut steel, but was modified to melt silver or gold (cut a little wider end and the start of this so that the flame is not so sharp and mistreated both metal .) REDUCING FLAME is the image that sits in the middle.
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