Ceramic plunger is a new high-tech ceramic material product developed in recent years, which can be combined with metal mandrelInlaygluing. The outer tube is made of ceramic material. The ceramic tube and the mandrel sleeve are threaded and bonded with anaerobic glue to prevent loosening. So what factors are related to the performance and service life of ceramic plungers?
1. Compared with metal plungers, ceramic plungers have the characteristics of rough appearance, low friction resistance, high temperature resistance, corrosion resistance, etc., and their service life is 3 years. Alumina or zirconia ceramic plunger series produced by precision processing are widely used in petroleum, chemical, food, textile, medical and other industries. Ceramic plungers are extremely resistant to wear, corrosion and impact. The matching accuracy between the shaft core and the outer sleeve of the ceramic plunger can reach 0.001 mm, and the smoothness can achieve a mirror effect, thereby reducing the friction coefficient, greatly extending the service life of the plunger, and improving starting efficiency.
2. The ceramic plunger is formed by isostatic pressing to ensure the consistency of density, so that it will not break due to density doubt during the working process. Diamond is chosen to have a fine polish on its outer surface to minimize the roughness of its outer surface, thereby increasing lubricity and durability.
3. In view of the shortcomings of the metal plunger of the plunger pump currently used in the petroleum, chemical, and food machinery industries, which has poor corrosion resistance and short service life, and the ceramic plunger is reliable and easy to fall off. Based on the current situation, another high-tech product was developed. It is characterized in that the contact surface with the medium and the working surface are both zirconia ceramics, the plunger column and the metal handle are mechanically combined, and the ceramic parts and the metal handle are filled with adhesive to avoidNo thread loosening. Compared with the existing ceramic plunger, the present invention has the characteristics of anti-falling off, firm bonding and high strength; the service life of the zirconia ceramic plunger is 10 times longer than that of the metal plunger, and can also increase the service life of the sealing packing. It has extremely high resistance to wear, corrosion and impact.
