s' target='_blank'>casting is a kind of special casting technology, are now using rare earth magnesium nodulizing agent, cupola and grey are the same.
In order to guarantee good optimization of spheroidizing, to control the content of sulfur and phosphorus lower.
Considering the temperature loss, the temperature of the molten iron should be higher than grey.
So ductile casting concrete operation is: will alloy block placed in the bottom of the bag, covered in iron filings (
Also can use thin steel plate)
When molten iron with the hot metal mixing with stirring holds a (
Immediately on the hot metal with straw ash (
Reduce heat and oxidation)
At the end, when the ball reaction with sampling some amount of the molten iron, poured into the specimen type, water-cooled after solidification, broke, check section to determine degree of nodulizing.
Meet the requirements, after the hot metal into ladle, casting.
Metal melting into to meet the requirements of a certain liquid is poured into the mold, after cooling solidification, men get a predetermined shape, size and performance of the casting (
Parts or blank)
The technological process.
The foundation of modern machinery manufacturing industry technology.
Blank casting production cost is low, for complex shape, especially the parts with complex inner cavity, more can show its economical efficiency;
At the same time, it has a wide adaptability, and has better comprehensive mechanical properties.
But the casting materials needed for production,
Such as metal, wood, fuel, molding materials, etc. )
And equipment (
Such as metallurgical furnace, sand mixing machine, molding machine, core making machine, shakeout machine, shot blasting machine, etc. )
More, and can produce dust and harmful gas and noise and pollution of the environment.
Ductile casting a casting process with complex components and process operation is accurate and strict.
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