The basic understanding of the selection of Magnetic Drive Pumps materials is unified in various countries. The working temperature of NdFeB material is lower than 150 ℃, and the working temperature of SmCo material is lower than 250 ℃. Aluminum ferrite can be used for micro-pumps. The pump body material is divided into two categories: metal and non-metal. Metallic Magnetic Drive Pumps are not meant to be stainless for all liquids, they are mainly used for processing liquids, precious liquids, and ultra-pure liquids with which they are compatible. Nonmetals are specially developed for corrosive applications. It is divided into 2 cases. One is Plastic Magnetic Drive Pumps, which are thermoplastic molded from pure polypropylene or ethylene fluoride. The second is lining the pump, which is a popular method of lining plastic for corrosion-resistant pumps.
Here is the content list:
l Main components of Plastic Magnetic Drive Pumps.
l There are several bearing materials commonly used in Magnetic Drive Pumps at present.
Main components of Plastic Magnetic Drive Pumps.
First of all, the material of the main flow parts of Magnetic Drive Pumps For the thick flow parts such as the pump body, impeller, and pump cover, their material selection is the same as that of ordinary pumps. For some special working conditions, structures such as plastic 'lining' can also be used. Secondly, the common isolation sleeve materials are ordinary stainless steel, Hastelloy, Monel, titanium alloy, reinforced polymer plastics, etc. Among them, Qin alloy material has the advantages of good corrosion resistance, high strength, and high resistivity in most media, so it is adopted by most Magnetic Drive Pumps manufacturers as isolation sleeve material. Sliding bearing and thrust bearing material Since the inner magnetic rotor of Magnetic Drive Pumps and its driven pump shaft and impeller are completely enclosed in a shielded and sealed cavity filled with conveying fluid, only sliding bearings and thrust bearings can be used for support and axial limit. and lubricated and cooled with the delivered fluid. The material selection and structural design of the sliding bearing and thrust bearing of Magnetic Drive Pumps are the keys to the reliable operation of Magnetic Drive Pumps.
There are several bearing materials commonly used in Magnetic Drive Pumps at present.
At present, the common materials of bearings for Magnetic Drive Pumps are silicon carbide ceramics, cemented carbide, carbon graphite, filled reinforced plastics, etc. Silicon carbide ceramics have excellent wear resistance and corrosion resistance and can work in almost any fluid, such as olefins, alkanes, acid-base salts, solvents, chemicals, etc. Carbon graphite, especially metal-impregnated graphite, has good self-lubrication and corrosion resistance, and it also has the advantage of low friction coefficient, and can also be used as a sliding bearing material for Magnetic Drive Pumps. However, carbon graphite is brittle and has low strength, and is sensitive to shaft bending and local overload, so special attention should be paid to the design. Filled reinforced plastics mainly refer to carbon fiber, glass fiber, mica, copper powder, tin powder, graphite, or aluminum disulfide for PTFE, which have good wear resistance and corrosion resistance, and are also widely used in the sliding bearings of Magnetic Drive Pumps. However, due to its large coefficient of linear expansion, attention should be paid to its operating temperature and PV value during design. Depending on the specific application, Magnetic Drive Pumps use straight-tube silicon carbide ceramics as the sliding bearing material and are ideally paired with cemented carbide or carbon graphite and other materials.
If you are interested in Magnetic Drive Pumps, you can contact us, our website is www.chinatengyu.com, you are welcome, and look forward to cooperating with you.
