Formula of powder metallurgy material for pressure-proof magnetic water pump of new-energy vehicle

Abstract

The invention provides a formula of a powder metallurgy material for a pressure-proof magnetic water pump of a new-energy vehicle. The formula is characterized by comprising, by weight, 50-60 parts ofiron, 20-30 parts of ditungsten carbide, 20-25 parts of chromium, 0.1-0.5 part of niobium, 3-6 parts of nickel, 4-7 parts of aluminum, 10-15 parts of copper, 2-5 parts of nanometer graphite powder, 0.1-0.4 part of barium oxide, 0.5-1 part of antimony trioxide, 1-3 parts of plant ash, 1-3 parts of dimethyldichlorosilane, 0.1-0.3 part of zinc borate, 5-8 parts of paulownia wood dust, 6-12 parts ofrosin resin and 0.5-1.2 parts of manganese zinc ferrite, wherein a mole formula ratio of ferric oxide to cyanide manganese to zinc oxide is 50:15:20. The formula has the advantages that the powder metallurgy material is high in base infiltrating capability and interface bonding strength, higher in density and less in segregation, a coating layer is capable of protecting solid lubricant from beingevaporated or oxidized by high temperature, strength and friction performance of the powder metallurgy material are improved remarkably, and pressure resisting performance of the magnetic water pump of the new-energy vehicle is improved greatly.

Description

technical field [0001] The invention belongs to the technical field of magnetic materials, and in particular relates to a powder metallurgy material formula for a pressure-resistant new energy vehicle magnetic water pump. Background technique [0002] Soft magnetic materials are a kind of common functional materials, which are widely used in motors, generators, transformers, sensors and other electrical equipment, and are very important components of advanced equipment in modern civilization. Its characteristic is that it can respond quickly and reach a saturated magnetization state under a small magnetic field, and the magnetization state almost disappears after the external magnetic field is removed, and it is easy to control the magnetization state of the material by slightly changing the external field. With the continuous development of the automobile industry, the penetration rate of environmentally friendly, energy-saving and emission-reducing, green new energy vehicl...

AI Technical Summary

Problems solved by technology

The current powder metallurgy used for new energy vehicle magnetic water pumps has poor compressive capacity, and is easily damaged under the high-load operation of automotive water pumps.