Q: How to control the production quality of nodulizer?
I just summarize a few points:
(one) The affinity of spheroidizing elements with elements
such as sulfur and oxygen in molten iron.
It has a strong affinity and forms compounds with it,
as a foreign core in the solidification process of molten iron,
such as rare earth, magnesium,
calcium and other spheroidizing elements.
(two) The ability of spheroidizing elements to change
the shape of graphite from flake to spherical.
(three) The density and boiling point of the nodulizer
are lower than those of molten iron.
The low density can automatically float in the molten iron,
and the boiling point is lower than the processing temperature
of the molten iron.
Magnesium can be converted into a gaseous state at the processing temperature,
and has a self-stirring effect,
thereby improving the spheroidization effect.
(four) The magnesium oxide content in the nodulizer
is equal to about 10% of the magnesium content.
(five) The nodulizer is dense, without segregation,
no shrinkage porosity, and no pulverization.
(six) The particle size distribution of the nodularizing agent is uniform,
no powdered alloy,
and obtuse-angle and deformable particles are better.
(seven) The above conditions basically cover the quality
requirements in the production and use of nodulizers,
so they can be used as a unified standard for both supply
and demand to determine the quality.
Follow me, the youngest girl in the factory,
if you are still looking for what kind of spheroidizer is right for you?
Welcome to private message, bye~
I just summarize a few points:
(one) The affinity of spheroidizing elements with elements
such as sulfur and oxygen in molten iron.
It has a strong affinity and forms compounds with it,
as a foreign core in the solidification process of molten iron,
such as rare earth, magnesium,
calcium and other spheroidizing elements.
(two) The ability of spheroidizing elements to change
the shape of graphite from flake to spherical.
(three) The density and boiling point of the nodulizer
are lower than those of molten iron.
The low density can automatically float in the molten iron,
and the boiling point is lower than the processing temperature
of the molten iron.
Magnesium can be converted into a gaseous state at the processing temperature,
and has a self-stirring effect,
thereby improving the spheroidization effect.
(four) The magnesium oxide content in the nodulizer
is equal to about 10% of the magnesium content.
(five) The nodulizer is dense, without segregation,
no shrinkage porosity, and no pulverization.
(six) The particle size distribution of the nodularizing agent is uniform,
no powdered alloy,
and obtuse-angle and deformable particles are better.
(seven) The above conditions basically cover the quality
requirements in the production and use of nodulizers,
so they can be used as a unified standard for both supply
and demand to determine the quality.
Follow me, the youngest girl in the factory,
if you are still looking for what kind of spheroidizer is right for you?
Welcome to private message, bye~
