High-efficiency Automatic Tungsten Needle Manufacturing Device and Method

The invention discloses an automation high-efficiency direct-current-controlled dynamic manufacturing device and method of tungsten needles.

In the device, an electrochemical reaction principle is adopted, a tungsten wire is driven by a linear motor to move up and down in NaOH corrosion liquid in a reciprocating manner so that a reaction is carried out between an anode tungsten wire and a cathode annular copper electrode, and the change of current in a circuit is monitored by utilizing a sampling resistor, a low-pass filter circuit, a voltage follower and a high-speed comparer; when the tungsten wire is corroded to be broken in an electrolyte solution, the sudden change of the current in the circuit causes an output signal of the comparer to change, a voltage applying circuit is switched off and a whole electrolytic corrosion process is finished; and furthermore, the conical degree and the tip radius of the tungsten needle can be adjusted by utilizing the change of motion speed of the linear motor.

The device and the method, disclosed by the invention, have the characteristics of high automation degree of tungsten needle preparation, good repeatability and high efficiency.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

The above is reproduced from: Application Technology Network, if in doubt, please contact the content belongs website.

• < Prev
• Next >