What is the difference between DC positive connection and DC reverse connection?

We stipulate that the positive pole of the workpiece is connected to the positive pole, and the negative pole of the workpiece is connected to the reverse pole. Because the temperature of the anode region is high during DC arc welding, the heat is high, the temperature in the cathode region is relatively low, and the heat obtained is relatively small. Therefore, when the positive electrode is at a higher temperature than the reverse electrode temperature, the heat obtained is also high, but The reverse pole operating arc is relatively stable.

Therefore, the welded thick steel plate can use the positive electrode for the acid electrode and the reverse electrode for the welded steel plate. When using low-hydrogen sodium alkaline electrode (J507, E5015), DC reverse connection must be used to ensure stable combustion of the arc.

Outdoor LED Flag Screen Totem

LED flag screen totem on light poles or Outdoor led screen kiosk, can save installation cost and time by pulling down and updating the printing advertising for light box. you can also unified management of intelligent management system. advertising can be really controlled,The Outdoor flat screen Is expected to become a large-scale media after as new carrier of advertising.

Small body, big world, It is not only small pixel pitch for led display, but a small era of led screen!

The flag LED display kiosk on each road poles, not only can realize the comprehensive utilization of road poles, making the road no longer monotonous, but also can play content according to different festivals and beauty the city. At the same time, it will also provide the public with weather changes, environmental pollution and road access. bring more convenience to the public.

Priva provides professional intelligent Led light pole screen solutions and professional commercial LED display technology With a wealth of LED project engineering experience, Priva Led will meet customer`s varity needs.

Integrated design, easy to use

Operate controller inside, Optional of installation on back column and side of pole, Easy to transport & install.

Intelligent management and Large scale cluster control and management. easy and convenient

Managing multiple displays via cable, 3G, 4G, WAN and LAN; Could manage by mobile phone with APP. 1-1 and 1-N management One click to release, timing, updating AD.

Outdoor Led Flag Screen Totem,Outdoor Led Flag Screen,Outdoor Flag Screen,Slim Outdoor Led Poster

Shenzhen Priva Tech Co., Ltd. , https://www.privaled.com