Скачать или смотреть Why are e cigarette heating coils chemically etch

The heating wire (especially mesh coil) in e-cigarettes uses chemical etching processing primarily because this technique can precisely create complex and uniform micro-hole grid structures on thin metal foils (such as Kanthal or stainless steel). This photochemical etching method involves exposure, development, and chemical dissolution to remove material outside the protective layer, forming a honeycomb-like perforated pattern, avoiding issues like burrs, deformation, or stress concentration from mechanical punching. The advantages are significant: first, it greatly increases the heating surface area, improving e-liquid atomization efficiency for denser vapor and purer flavor; second, it ensures even heat distribution, reducing hot spots, preventing burnt taste, and extending lifespan; third, it offers high precision and flexibility for quick prototyping and resistance adjustments, suitable for large-scale precision manufacturing; fourth, it's a non-contact process that maintains material cleanliness, meeting e-cigarette food safety standards. Currently, etching is the mainstream process; although costlier, its superior performance makes it widely used in disposable vapes and high-vapor devices.

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