A lot of foreign body in an application environment DCJ2: steel direction:
Used in automobile and spread ChaDong oil, correlation degree of soot, recovery (foreign bodies mixed with dust, once the foreign body bite) in a rolling bearing rolling into the loss of the indentation in the early development direction, a large number of foreign steel.
Rolled through the objects in the environment with a fatigue test results, could improve the environment eyewinker life mixed with useful guidance, by improving the surface hardness of surface runoff, face or ductile matrix in the effectiveness of natural gas.
To increase more than 2% of Mn DCJ2 resistant steel objects very tired by the coil in the condition of the foreign body in clean oil SUJ2 roll, compared to its high waste of fatigue, into the object and the condition of gas or oil cleaning, the fatigue and SKF Bearings Outer Diameter http://www.fagbearings-hk.com/ excellent DCJ2 over the equivalent resistance of carbon and nitrogen steel objects.
Refining of steel at high temperatures STJ2 application: -
With the constant improvement of the output power automobiles and industrial machinery, direction and FengBiHua GaoSuHua temperature rise with the environment. Hope that in the development of 523 k temperature restraint and 473 performance. To perform under this temperature range, if use the SUJ2 quality, reduce the hardness characteristics, the film is not good. , on the other hand, although the sclerosis type, such as aircraft engine exhaust M50 in the same temperature range - life, but the volume of about 10% or alloy elements, V, such as mo alloy material, so the cost is high, the lack of operability and complex heat treatment. As a result, the number of alloy element to add minimum price control, at the same time, considering the high temperature JiaGongXing and treatment and steel as the appearance of the work target, the quenching tempering hardness softening, prevent the scheduling is effective.
To transfer the quenching hardness and impact of the stairs, hardness of quenching hardness increase content, in order to improve the stair of elements C, if give up easily. Therefore, for stable, increase steel SUJ2 C if the content to avoid reduce high temperature hardness, by adding elements to keep features or materials under high temperature in the direction of the roll STJ2 like steel.