How to choose between sintering bonding and hot-pressed NdFeB?
According to different production processes, NdFeB permanent magnet materials can be divided into three types: sintering, bonding and hot pressing. Today, I will tell you about the competition and advantages of these three types of NdFeB.
Competition and advantages among the three major neodymium iron boron
Sintered NdFeB, bonded NdFeB, and hot-pressed NdFeB can have common application fields, which are mainly manifested in micro-special motor products, so there is competition. However, the small absolute advantage also makes it occupy their own unique applications.
Sintered NdFeB sheet and tile-like products (NdFeB powerful magnetic tiles) are easy to manufacture and process, so they have a batch and cost effect; bonded NdFeB is good at manufacturing complex shapes (abnormal) products, it can be said With its unique characteristics, hot-pressed NdFeB is more suitable for the manufacture of radiating ring magnets with small size and high magnetic performance requirements. It can be called a precise design.
The cost and performance of hot-pressed NdFeB are better than that of sintered NdFeB, and it is expected to replace sintered NdFeB in many fields such as automobile EPS, wind power motors, and air-conditioning compressors. However, the current molding process of hot-pressed NdFeB is limited. It can only be made into a ring shape, which greatly limits its application range.
From the perspective of procurement, how to choose between sintered NdFeB, bonded NdFeB and hot-pressed NdFeB?
In addition to the normal situation, such procurement requirements should integrate multiple elements-
Mainly consider or focus on the sales price of the magnet, the corrosion resistance and high temperature resistance of the magnet; it will even explore the cost of raw materials, productivity, yield, and these elements for comprehensive evaluation.
