Q:You ask the master, a suspension spot welding machine control principle, I now need to do a detection tool for specific details: when the success of welding torch ends will have powerful currents, I mainly when this powerful current I will remember a welding work data, this is my signal how should the acquisition. Or how should I find the signal point in the control cabinet of the electric welding machine? I have the circuit diagram of the welder here, because the first contact with the welding machine is not very clear. I am a novice, look Haihan heroes!

You this is the equivalent of a counter current through the method, considered a record, but the conventional signal acquisition counter voltage value, you can pass the current into voltage does not exceed the value of 30V to counter acquisition equipment above, when the voltage reaches above 5V can be considered to be a high level, a number of the best. You calculate this current size range, across an appropriate resistance, by recording more than 5V times more than by the voltage of this resistance to count.

Q:Welding two pieces of stainless steel by spot welding, which spot welder is the best? AC, DC?What is an inverter type medium frequency spot welder?

There are many welding methods, such as gas shielded welding, argon arc welding, electrode welding and submerged arc welding.In accordance with your needs, small quantities, you can use gas welding, welding rod arc welding. High quality requirements can be achieved by argon arc welding. The workpiece is large enough for submerged arc welding.Welding machine is to use the positive and negative poles in an instant short circuit when the high temperature arc to melt welding electrode on the solder and welding material, so that the combination of the purpose of contact. The structure is very simple, that is, a high-power transformer. Welder according to the type of power output can be divided into two kinds, one is AC power supply, and the other is direct current. They use the principle of the inductor, inductance voltage will produce a huge change in the on and off, resulting in high voltage arc when sudden short-circuit the use of positive and negative poles to melt the solder wire, to allow them to reach the purpose of atomic binding.

Q:What is the 25KVA spot welder?

Do you mean the power demand of the power transformer?

Q:The capacity of single spot welder is 160KVA, which is six units. How much cable should be selected for main circuit?

Enough, because the spot welder is working instantaneously,

Q:What accessories do you need for homemade spot welder?

Transformer, electrode, lead

Q:My unit a 380V two-phase electric welding machine, 3KW welding power about iron, boot no reaction can not be welded, sometimes a little spark, general principle is that, a line directly into the welding machine coil, a line through the thyristor into the coil, controlled silicon trigger circuit, trigger by the time relay control circuit, I have changed the SCR (1600V 100A), the fault still, I would like to ask how to check, the SCR is two-way? Where will the trouble occur?

The no-load voltage of the two circuit is usually 10-18 volts. If the voltage is normal, there is a certain rust in each part of the circuit, resulting in poor contact. Just keep it clean. If the voltage is abnormal, check the control loop and transformer.

Q:I have a transformer capable of entering 220V 6V 12V 24V 36V capacity 1000VA low rated current 27A, I want to make it a touch welder. Do 2 square meters of small wire connector. Need to add something, want to play a few, to the points

To rewind coil voltage output into 1.5-4V - about - flat copper wires for 100 square meters

Q:12V switch power supply to battery spot welder

If the welder power supply may not be suitable, the welder can usually output 1000A-5000A current when the welder is working. This current is small.

Q: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!

[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.

Q:How to grind the electrode cap of stationary spot welding machine and how to use the spot welder

Usually with a file, high efficiency and the most affordable, other tools are not so practical