Insulating coating system and preparation method of insulating acupuncture needle
A coating system and technology for acupuncture needles, applied in solid-state chemical plating, metal material coating process, coating, etc., can solve problems affecting acupuncture effect, current leakage, etc., achieve great commercial promotion value, prevent rust, and enhance acupuncture effect of effect
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[0016] The first aspect of the present invention proposes coating an insulating layer on specific parts of traditional stainless steel acupuncture needles, so that the other parts except the needle handle (for external current input) and the needle tip (for current to enter the acupuncture points or affected parts of the human body) are coated with an insulating layer. layer of high-precision insulating material. The thickness of the insulating layer is between 100 nanometers and 100 microns, and the typical thickness is several microns; it can have a good insulating effect on voltages up to 220 volts in the frequency range of 0 to 300 Hz, and the leakage current is less than 1 microampere.
[0017] The second is a method and system for coating an insulating layer by using a targeted optimized sol-gel method. The method includes the following steps:
[0018] First, use titanium dioxide sol precursor 4, after homogenization, aging and other common precursor treatment processes...
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