Method and application field of grinding media steel ball

- May 08, 2019-

Grinding media steel ball refers to the steel ball used to grind the mill material, which is actually an abrasive body. It should be said that the wear-resistant steel ball is only a kind of ball that grinds the steel ball, that is, the steel ball that is not wear-resistant can also be called the grinding steel ball. For example, cast steel balls (high chrome balls, medium chrome balls, low chrome balls), forged steel balls, rolled steel balls, and bearing steel balls can be called abrasive steel balls. Any steel ball engaged in grinding operations can be called grinding. Steel ball.

Method of using grinding media steel ball

Low-chromium steel balls are the most important grinding bodies in ball mills, and foreign countries are called grinding steel balls. Low-chromium steel balls are produced by medium-frequency electric furnace smelting, metal mold or sand casting. Therefore, domestic wear-resistant materials manufacturers are often referred to as low-chromium alloy cast balls.

Technical standard for grinding media steel balls

1. Whether the grinding media steel ball is wear-resistant, the most important data is the hardness test, which can be tested by Rockwell hardness tester. Practice has shown that the service life of steel balls above HRC60 is twice that of HRC40-50.

2. Low-chromium steel balls refer to steel balls with chrome content 3.0% and carbon content between 1.80%-3.30%, all of which are low chrome balls. The national standard requires low chrome ball hardness (HRC) to be 45 degrees or more. If the quality of the low chrome ball is recommended, heat treatment tempering or vibration aging treatment must be used. If the hardness (HRC) is less than 40 degrees, the hardness of the low-chromium ball is insufficient or excessively generated.

Application field

Grinding media steel balls are widely used in metallurgical mines, cement building materials, thermal power generation, flue gas desulfurization, aerated concrete, magnetic materials, chemicals, coal water slurry, pellets, slag, ultrafine powder, fly ash, calcium carbonate, Quartz sand and other