Silicon aluminum zirconium pretreatment agent

        The use of alloy pretreatment agent is conducive to improving the pre-inoculation capacity of gray cast iron, promoting the formation of a large number of eutectic clusters and increasing the growth temperature (reducing the relative supercooling degree), which is beneficial to the formation of A-type graphite, the number of crystal nuclei increases, and the flake graphite Fineness, increase the degree of graphitization and reduce the tendency of white mouth. At the same time, the composite elements in the pretreatment agent have improved metallography and microstructure of the casting, preventing or reducing element segregation, thereby improving mechanical properties and effectively improving the cutting performance of the casting.There are high-density dislocations around the pretreatment agent particles, and the crystallization increases to refine the grain, and the graphite morphology is changed, the graphite length becomes shorter, the A-type graphite increases, the D-type graphite decreases, the number of eutectic clusters and pearlite significantly improve .

        The compound element in the alloy pretreatment agent has the ability of pre-inoculation. For nodular cast iron, the increase of the crystalline core increases the number of graphite spheres and the spheroidization rate can be improved. Because of its strong deoxidizing ability, the content of molten iron is reduced The amount of oxygen improves the absorption and use effect of the spheroidizing agent, which can reduce the amount of spheroidizing agent added. In addition, the content of FeO in the nodular iron slag is higher than that in the gray iron or vermiculite slag, so The problem caused by fluid slag to ductile iron is more serious than that caused by gray iron or vermicular iron. Therefore, it is more necessary to increase the fluidity of molten iron, and it is necessary to add a pretreatment agent to the ductile iron.

Supply granularity

0.2-1mm、1-3mm、3-8mm、8-15mm, It can process various special specifications according to user requirements.

Product packaging

25kg iron woven bag packaging plus ton bag packaging。

Quality assurance

The product name and quantity are clearly marked on the packaging bag, and the corresponding product quality guarantee is provided.