As we all know, in the molding process of high-pressure ore powder ball press, the fastest wear is the roll skin. The scrapping standard of a high-pressure ball press machine is mainly determined according to the life of the roll skin. Therefore, we are on the roll skin process. The processing requirements are very strict, so how to increase the wear resistance of the high pressure mineral powder ball press roll?
Firstly, the wear resistance of the roll skin after the quenching process is good, and the quenching process is to greatly improve the rigidity, hardness, wear resistance, fatigue strength and toughness of the steel, so as to meet the different use requirements of various mechanical parts and tools. It is also possible to satisfy the special physical and chemical properties such as the corrosion resistance of certain special steels by quenching, and this step is also carried out for the roll skin of the powder ball press.
Secondly, the heat treatment process of the roller sleeve adopts the lifting of the roller sleeve repeatedly during quenching to ensure that the roller sleeve is always in the up and down motion state in the oil, thereby ensuring that each ball socket of the roller sleeve can be in contact with the oil. However, due to the different structure of the sleeve and the outer ring of the bearing, as well as the instability of human operation, there are still some small differences in the effect of quenching each sleeve.
Finally, after 24 hours of low temperature tempering after heat treatment, the hardness of the final sleeve is generally between HRC 57-60, and the depth of the hardened layer is generally 5-6 mm.
For the processing of the roller of the ball press machine, the above three stages must be passed before the output requirement can be achieved. The ordinary roll skin generally does not reach the production requirements of the manual and the roller is changed.
The high-pressure ore powder ball press can press various mineral powders, metal powders, coal powder, coke powder and other materials to form them. Because of the forced extrusion of the roller, the product has three characteristics of high density, high strength and high hardness, and the machine press roller adopts 650mn hard material and has good wear resistance. Effectively improve the service life of the pressure roller.
The mine powder ball press is mainly used for the ball making of colored and ferrous metal ore, directly into the furnace for smelting, and increases the added value. Any metallurgical industry waste, auxiliary materials need to be on the furnace, all need a mineral powder pressure ball machine to complete. For example: dust, ash, sludge, scale, steel slag, iron powder, aluminum ash powder, silico-manganese ore powder. The roller skin of the mine powder ball press is made of 9 chrome 2 molybdenum tantalum material, and the hardness can reach 58 degrees or more after special heat treatment. The roll skin is assembled in combination and can be replaced after wear. The mine powder ball press has a buffer device to better protect the equipment from hard objects. The ball powder ball machine is designed with a ball bowl adjustable device, so that the two-roll ball bowl is always within the adjustable range, which is always good.
