The purpose of etching is to remove the unprotected non-conductive copper on the patterned circuit board made in the previous process, forming a circuit. Etching includes inner layer etching and outer layer etching, with the inner layer using acidic etching and wet or dry film as the resist; The outer layer adopts alkaline etching, with tin lead as the resist. By controlling the concentration of etching solution, temperature, etching speed, nozzle pressure, etc., to achieve the line width/spacing, IC/pad/BGA, etc. required by the customer's drawing dimensions, and then using the outer layer circuit graphic AOI optical inspection machine to screen out OK products at 100% per piece and proceed to the next process.

Structural material: A corrugated tube specifically designed for PCB etching machines, made of PTFE (polytetrafluoroethylene).
Application scope: It is professionally used for connecting PCB etching machines and circuit board machinery, and is widely used in various industrial fields. It has excellent heat resistance, corrosion resistance, electrical insulation, etc.

   Commonly used in the following industries: chemical facilities/semiconductor manufacturing equipment/food manufacturing equipment/physical and chemical machinery/automotive parts/pharmaceuticals, fuel, oil, steam transmission pipelines/electrical insulation coatings/others.
Working temperature: -73 ° C~+260 ° C
   Characteristics of PCB etching machine specific corrugated tube:
1. It has excellent corrosion resistance and chemical properties.
2. High and low temperature resistance, can be used for a long time in the range of -73 ° C~+260 ° C.
3. Outstanding sliding, non adhesive, current insulation, and weather resistance.
4. Fatigue resistance, can be repeatedly bent, and has a long service life.
   Note: The above data is for reference only. All data are average values measured at an ambient temperature of+20 ℃. Technical parameters may vary slightly depending on the usage environment and the selected material. Please consult our sales personnel for specific information.