Our company recently went to the group but is temporarily cut over the monitor before there had even don't know what a few spot do not know what the models do not know how to useTake the line (copper wire) and welding machine in a welding terminal is above type that one seems to have a bar below the copper block below a pedal at the bar above will come down on their products sometimes sparks between the copper wire and welding pieces connected I have read some information but too professional cannot readThe problem is that the transformer out of the small voltage, high current, then we are in the operation when the hand is directly touching the welding piece, how can anyone be okay?Talk about the principle of spot welding and common problem treatment is that companies with a high spot about the aerodynamic action please as much detail as possiblePlease help master answer, thank you!
You are converted to alternating current from the DC voltage, low voltage change is produced into high current. But you say that human contact welding film, people will not be fine, should be low voltage on the high current, through some kind of current exports, no harm to the human body
It seems that to solve your problem is to let you understand the principle of the transformer OK, it is mainly controlled by the number of lines, usually expressed by N, that is, through the primary number of bundle and secondary number of changes in the bundle.
First of all, to help you blind, the biggest feature of welding machine is low voltage, high current, this is for the production and operation of the needs of the special design, all arc welding power is such, do not feel strange. Then, spot welding is one of the welding methods, which is achieved by welding wood and welding or filling materials to achieve the purpose of welding. It is mainly used for welding small parts or between thin plates,. Your machine is a typical pneumatic type spot welding, as you said, people don't feel because you touch the anode and the welding machine is equivalent, current outflow from the top of the arm, from the flow away, because it is less than the safety voltage, so people do not feel.
The first is a power transformer load, and power is the product of voltage and current transformer, so reduce voltage will put the current increase, industrial electricity is the spot welding transformer of 380V electric pressure to low voltage of about 10, and the output current.The resistance spot welding machine uses the high current to pass through the work piece itself the resistance, can produce the massive heat, thus melts the metal work piece, and applies certain pressure to cause the metal piece to weld together. The heat Q=I "RT" shows that the spot welder parameters are mainly controlled by current, resistance and time. Human contact with high current is because there is no loop with the transformer. The resistance of the body is too large for the resistance of the metal work, so the current does not pass through the body essentially.
[1] yellow spot, the contact surface can be flame, the pressure is increased, try again; because of uneven spot welding electrode or welding abrasive wear local uneven, please put it flat or will solve this problem can be modified electrodes; spot welding machine commissioning of the three major factors, namely, welding current, welding time and the welding pressure, any change will affect the welding, which is adjusted in any one will change the welding effect, try out parameters suitable for your product, and can adjust the echo of the machine. Cutlery is mainly stainless steel, the surface effects of high demand, so as far as possible, increase the pressure point, will be in contact with, and then protect the surface.[2] alternating current: the concept of alternating current: the size and direction changes periodically with time, and the average value equal to zero in a cycle is called alternating current (alternatingcurrent), or AC.
