What Treatment Will Be Done On The Surface Of iron Shell Oil Seal

Painting or spraying plastic coating: Applying paint or plastic coating on the surface of the iron shell, such as epoxy resin paint, polytetrafluoroethylene coating, etc., can improve the corrosion resistance, wear resistance and aesthetics of the iron shell, and can also play a certain insulation role.

Coating adhesive: Apply a specific adhesive evenly on the surface of the iron shell, and then dry it, so that the iron shell can be firmly bonded with the subsequent coating materials such as rubber or resin.

Surface quenching: including flame quenching and induction quenching. Flame quenching is to use high-temperature flame to quickly heat the surface of the iron shell, and then spray water or use other cooling media to quickly cool it, so that the surface obtains martensite structure to achieve the purpose of hardening. Induction quenching is to put the iron shell into the inductor, pass alternating current, use the skin effect to quickly heat the surface to the quenching temperature and then quickly cool it, so as to improve the surface hardness and wear resistance.

Nitriding treatment: Nitrogen atoms penetrate into the metal surface of the iron shell to form a nitrogen-rich hardened layer. It can be carried out at a lower temperature. For example, gas nitriding is in an ammonia atmosphere. The active nitrogen atoms decomposed by ammonia penetrate into the surface of the iron shell, which can improve the surface hardness, wear resistance and corrosion resistance.