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Nodulizer

Additives that crystallize graphite in cast iron into spherical shapes, called "nodulizers". "Spheroidizer" main

The composition is spheroidizing elements, such as Mg Ce Ca and so on. The nodular graphite in ductile iron is formed by spheroidizing the molten iron, which makes its strength much higher than that of gray cast iron, and its toughness is better than that of malleable iron, while maintaining a series of advantages of gray cast iron.

The nodulizer commonly used in my country is ferrosilicon rare earth magnesium alloy, and most of the foreign countries use magnesium-based nodulizers (pure magnesium alloys).

and magnesium alloys), a few countries use calcium-based nodulizers.

The basic requirements for the nodularizer are:

1. Strong spheroidization ability;

2. Abundant resources, low price, easy to melt:

3. Strong adaptability to molten iron of various components (such as eutectic degree, sulfur content, anti-spheroidizing elements and alloying elements) and temperature;

4. The kinetic conditions of the spheroidization reaction are good, the reaction is relatively stable, the reaction products are easy to be eliminated, the dosage is small, the cooling is less, and the spheroidization treatment process is good.

Silicon magnesium alloy-DM series

Silicon-magnesium alloy is an alloy smelted from ferrosilicon, magnesium and trace amounts of silicon calcium and rare earth elements. That is commonly known as "high magnesium spheroidizer".

UsePURPOSE

Mainly used as core material for spheroidized cored wire

O other grades: can be customized according to user requirements;

Granularity: 0-2mm, 0-2.5mm, 1-3mm, can be processed according to user requirements

O Packaging and storage and transportation: It can be packaged, stored and transported according to user requirements to prevent moisture.

Rare earth magnesium ferrosilicon alloy

Rare earth calcium barium

Silicon calcium manganese