The use of the surface layer of the metal melting and re- solidification ,
2014-02-14 by seoer4
The use of the surface layer of the metal melting and re- solidification , to give the desired composition of the surface hardening treatment or tissue enhancement technique called surface metallurgy . Including the surface from the insoluble alloy or composite powder coatings, crystalline or amorphous surface melting , surface alloying methods. Deep groove ball bearing is characterized by rapid heating to a high energy density , the surface of the metal layer or metal coating on the surface of the alloying material is melted and then solidified by cooling to obtain their particular structure or particular properties of the reinforcing layer . This particular structure is perhaps the crystal Bearing life testing machine structure refinement , or maybe supersaturated phase , metastable phase , even non- crystal structure , depending on the process parameters and methods of surface metallurgy . Rolling industry in miniature bearing surface enhanced laser heating has done research to good effect.
Application of physical or chemical methods , the coating on the metal surface bearing a different material properties of the matrix to strengthen the film , the film referred to as surface hardening. It includes electroplating , electroless plating ( chrome, nickel, copper, silver , etc. ) as well as composite Rolling mill bearing plating, brush or transformation processing , including in recent years, the rapid development of high-tech : as CVD, PVD, P-CVD , etc. vapor deposition and ion implantation method to strengthen the film surface enhancement technology ( also known as atomic metallurgy ) and so on. Their common feature is the film can form specific performance in the work surface to enhance the wear resistance of the surface resistance, fatigue resistance, corrosion resistance and self-lubricating properties. Such as ion implantation technology to strengthen the deep groove ball bearing surface , enabling the bearing surface wear , corrosion resistance, and resistance to contact fatigue performance have been significantly improved , so that the service life of bearings grow exponentially .
Application of physical or chemical methods , the coating on the metal surface bearing a different material properties of the matrix to strengthen the film , the film referred to as surface hardening. It includes electroplating , electroless plating ( chrome, nickel, copper, silver , etc. ) as well as composite Rolling mill bearing plating, brush or transformation processing , including in recent years, the rapid development of high-tech : as CVD, PVD, P-CVD , etc. vapor deposition and ion implantation method to strengthen the film surface enhancement technology ( also known as atomic metallurgy ) and so on. Their common feature is the film can form specific performance in the work surface to enhance the wear resistance of the surface resistance, fatigue resistance, corrosion resistance and self-lubricating properties. Such as ion implantation technology to strengthen the deep groove ball bearing surface , enabling the bearing surface wear , corrosion resistance, and resistance to contact fatigue performance have been significantly improved , so that the service life of bearings grow exponentially .