Spheroidizer is the use of a product is widely used for molding casting field, promote graphite crystal ball, its quality and ability is very important, then we introduce agent ball quality criteria.

(1) the affinity of the elements such as sulfur and oxygen in the molten iron. Affinity, and with the formation of compounds, as the molten iron solidification process outside the core, such as rare earth, magnesium, calcium and other elements of the ball.

(2) the ability to change the shape of the graphite from a flake into a ball.

(3) the density and boiling point of the sphere is lower than that of the liquid. The density is small, and the boiling point of the liquid is lower than the iron liquid treatment temperature, and the magnesium can be converted into a gas state in the treatment temperature, and has the self stirring action to improve the effect of the ball.

(4) in the ball of the agent in the content of 10% magnesium content of or so.

(5) the densification of the ball, no segregation, shrinkage porosity, no powder.

(6) spheroidizer uniform particle size distribution, no powder alloy, obtuse polygon particles as well.

The performance and quality of the ball is very important, and it is the key factor to influence the cast iron. Therefore, the selection of high quality of the agent, can speed up the processing speed, improve the quality of the finished product.