All Categories
EN

Home > Showlist

Grinding balls

One of the most popular types of balls used in ball mills are Grinding balls. They are used in a variety of industries and can be built out of different materials. When choosing these balls, there are numerous elements to take into account, such as their hardness, price, and material specific gravity. The following advice will help you choose the appropriate balls for your requirements.

Hardness

The two-step austempering process, a revolutionary approach, has been created to take the place of the traditional salt bath austempering process. In this procedure, complete circular steel bars are heated for two minutes in an electric furnace. To create grinding balls with the necessary hardness and chemical makeup, the bars are then spun and quenched in specialized machinery.


The grinding balls for ball mill underwent a second round of treatment in which they were air cooled to room temperature. The impact toughness of the balls was measured using a series of wear tests. Both an LZ24 pendulum impact tester and a ball-on-disk wear tester (HT-600 tribometer) were used for these testing.


The findings demonstrate that the impact toughness of grinding balls treated with a 40 weight percent sodium silicate solution is on par with that of balls treated under other conditions. However, the impact of a larger sodium silicate content is more obvious.


The surface of the grinding balls had a spheroidization rate of above 95%. The hardness also increased noticeably as a result. It was also discovered that when the sodium silicate concentration increased, the number of furrows on the balls' surfaces decreased.


The ball was demonstrated to have a ductile fracture mechanism in addition to its high hardness. This is a result of the acicular ferrite being surrounded by preserved austenite. Also included in the matrix structure was a fine lower ausferrite. The martensite phase eventually changes into the upper ausferrite phase as the salt bath increases.


Fig. 3 depicts the morphology of the ADI balls. The balls manufactured from a sodium silicate solution concentration of 40 weight percent exhibit a reduced ausferrite microstructure and a ductile fracture mode than conventional grinding balls.


Also noted were the grinding balls' abrasive and adhesive wear caused by a stronger sodium silicate solution. The balls with a higher sodium silicate concentration were more resistant to the wear of abrasives in the case of abrasive wear. Conversely, the balls that included more sulfate salts were less abrasive.


Why choose Tianchuang Grinding balls?

Related product categories

Not finding what you're looking for?
Contact our consultants for more available products.

Request A Quote Now

Hot categories