Built-in micro neodymium iron boron magnetic steel for e-cigarettes is a kind of ultra-precision micro magnetic material customized for the internal structural assembly and functional realization of electronic cigarette equipment such as disposable e-cigarettes, rechargeable e-cigarettes and pod e-cigarettes. E-cigarette products have the characteristics of miniaturized body, compact internal structure and precise functional matching, and the built-in magnetic steel needs to realize multiple core functions such as magnetic attraction assembly, automatic switching induction, airflow sensing and magnetic positioning. This micro magnetic steel breaks through the size limitation of traditional magnets, and realizes high-precision and high-stability magnetic matching in ultra-small space through micro-processing technology and performance optimization design.

In terms of size and precision, e-cigarette built-in micro magnetic steel adopts ultra-fine grain sintering and precision wire cutting processing technology, with ultra-small volume and ultra-high dimensional accuracy. The product specifications are diverse, including tiny sheets, small cylinders, special-shaped micro blocks and other structures, which can perfectly adapt to the narrow internal installation space of e-cigarettes. The size tolerance is controlled within ±0.01mm, with smooth and burr-free edges and corners, which will not scratch the internal circuit and structural parts of e-cigarettes, and meets the high-precision assembly requirements of electronic cigarette equipment. The micro magnet has a compact internal structure, high material compactness, no internal pores and cracks, and stable structural performance, and will not be deformed or damaged during long-term use and assembly.

In terms of functional performance, this micro magnetic steel has the characteristics of sensitive magnetic induction, stable magnetic force and fast magnetic response. It can quickly realize magnetic attraction closing and automatic induction switching between e-cigarette pods and host, charging contacts and structural components, realizing intelligent functions such as automatic power-on and power-off, induction charging and magnetic positioning. The magnetic force is moderate and stable, which not only ensures the firm assembly of e-cigarette structural parts and no loose falling off during use, but also realizes smooth disassembly and replacement, balancing the firmness of assembly and the convenience of use. At the same time, the magnet has low residual magnetism and stable magnetic field distribution, which will not interfere with the internal chip, sensor and circuit signal of e-cigarettes, ensuring the normal operation of equipment functions.

In terms of quality and safety, all e-cigarette built-in micro magnetic steels adopt food-grade environmental protection materials and non-toxic surface treatment processes, which are lead-free, mercury-free and corrosion-resistant, fully compliant with consumer electronic product safety standards. The product has excellent anti-aging and anti-high temperature performance, can adapt to the internal temperature change of e-cigarettes during working and charging, and will not have magnetic attenuation and performance failure due to temperature rise. After strict drop test, vibration test and long-term use test, the product has stable quality and long service life. It is widely used in various mainstream e-cigarette equipment, providing reliable magnetic support for the intelligent assembly and functional realization of e-cigarette products, and is a core supporting material for the upgrading of electronic cigarette manufacturing technology.