Forging Process Of Mine Special Steel Ball

The traditional process of steel balls for mines requires cutting the material to size, heating to a certain temperature with coal or gas, hammering with air, heat treatment, and product inspection. Traditional technology has many disadvantages such as low production efficiency and productivity, large individual differences caused by artificial control of product quality, serious environmental pollution, high labor intensity of workers, and thermal radiation noise seriously endangering workers' health.

Diagonal tie rod technology is a rapid development in the forged steel ball industry. However, there are many defects in the oblique installation process, mainly in surface quality and roundness. The surface of the steel ball produced by the oblique loading process has defects such as clamps, lack of meat, over-burning, bulging, and large loss of roundness. Moreover, when the diameter of the steel ball is greater than 50mm, all the indicators of the mine-use special steel ball produced by the oblique installation technology cannot meet the requirements of the relevant standards. Steel balls with a diameter greater than 90mm can no longer be produced by the oblique installation process.

Rotary cutting forging technology: With the development of the world's mining machinery, the diameter of the ball mill is getting larger and larger. With the emergence of rolling mills, the mine's demand for steel balls has gradually changed from small diameters to large straight and large diameters. The automatic steel ball rolling production line technology adopts advanced new technologies such as automatic feeding technology, intermediate frequency %26 high frequency induction furnace heating technology, rolling cutting rolling machine technology, spiral isothermal machine technology, roller table spiral quenching machine technology, and automatic insulation barrel technology. equipment. The production efficiency is nearly 20 times higher than that of the traditional process, and the labor intensity and working environment of workers have been greatly improved. Replacing coal and gas with advanced induction furnace and heating can save energy and reduce consumption without causing environmental pollution. The surface quality and internal quality of the produced steel balls exceed the phase and clearance standards, and the roundness, hardness, impact value, and drop value all exceed national standards and regulations. In particular, large-diameter steel balls with a crushing diameter of more than 100mm can only be forged with conventional air hammers.

At present, it is a new rolling technology to produce mine-specific steel balls with a diameter of 20-150mm, and it is a breakthrough in the manufacturing process of ball mill steel balls. It is gradually replacing cast steel balls. Hot-rolled steel balls have the following characteristics: , Hot-rolled steel balls have all the advantages of steel balls as high-quality steel balls after heat treatment. 2. High efficiency, large output, mechanized production of rolling steel balls, high degree of automation, no need for manual production, less labor, and less interference from human factors. 3. Low energy consumption, no pollution, low labor intensity and low production cost.