Degumming cleaning fluid for NdFeB magnetic material processing

Abstract

The invention discloses a degumming cleaning fluid for processing neodymium iron boron magnetic materials. Raw materials of the cleaning fluid include ethylene glycol, complexing agent, anionic surfactant, nonionic surfactant, compound corrosion inhibitor, alkaline agent, and balance of water. The cleaning fluid is prepared and formed through environment-friendly materials, is used for processing the neodymium iron boron magnetic materials and has no flammable and combustible features during use; large adverse impact on the work environment occurs rarely, nitrite, phenol, and formaldehyde and other environmentally hazardous substances are eliminated; the cleaning fluid is anti-flaming, is not toxic to operators and has good safe environmental protection, and processing environment and sanitary conditions are optimized; meanwhile, good cleaning effect on processing oil and fixing glue is achieved, working efficiency can be improved, and cost is reduced.

Description

technical field [0001] The invention relates to a general cleaning solution, in particular to a degumming cleaning solution for processing NdFeB magnetic materials. Background technique [0002] NdFeB magnetic material, as the latest result of the development of rare earth permanent magnet materials, is known as the "Magnetic King" because of its excellent magnetic properties. NdFeB magnetic materials are alloys of neodymium, iron oxide, etc. Also known as magnetic steel. NdFeB has extremely high magnetic energy product and coercive force, and the advantages of high energy density make NdFeB permanent magnet materials widely used in modern industry and electronic technology, so that instruments and meters, electroacoustic motors, magnetic separation and magnetization Miniaturization, light weight, and thinning of equipment such as equipment become possible. The advantages of NdFeB are high cost performance and good mechanical properties; the disadvantages are that the Cur...

AI Technical Summary

Problems solved by technology

The advantages of NdFeB are high cost performance and good mechanical properties; the disadvantages are that the Curie temperature is low, the temperature characteristics are poor, and it is easy to pulverize and corrode. It must be improved by adjusting its chemical composition and taking surface treatment methods. , in order to meet the requirements of practical application

The magnetic material NdFeB is an emerging permanent magnet material. Its advanced processing technology is constantly being developed. During the processing, epoxy resin and other glue are used to fix it. However, after the epoxy resin and other glue is processed, it is difficult to clean and the cleaning time is long. , and the problem of high energy consumption

[0003] In the prior art, the magnetic material NdFeB is generally cleaned at high temperature for a long time, which will affect the magnetism and cause damage to the surface of the workpiece, resulting in weak bonding of subsequent electroplating, increasing the amount of scrap, and ultimately causing economic and economical damage. resource loss

If rare earth metals are added, the oxidation stability will be reduced, and the material will be prone to rust. Coupled with the change of environmental awareness, the transition from oil-based processing fluid to water-based processing fluid during processing puts forward higher requirements for cleaning and anti-oxidation