How to use the thrust current of the welding machine? 20

Increase the current output at the moment of welding arc initiation to prevent the electrode from sticking to the workpiece, which has little effect during normal welding. The range of adjustable thrust current is generally between 0-100A. Therefore, if the arc is often glued to the welding rod, it is good to adjust the thrust to the maximum.

Using the principle of inductance, the inductance will produce a huge voltage change when it is turned on and off, and the high-voltage arc generated by the positive and negative electrodes when they are short-circuited in an instantaneous short circuit is used to melt the solder on the electrode to make them atomically combined.

The main function of the thrust current of the ordinary welding machine is to increase the current output at the moment of welding arc initiation to prevent the welding rod from sticking to the workpiece, which has little effect during normal welding. The range of adjustable thrust current is generally between 0-100A. So if you often stick the electrode to the arc, just adjust the thrust to the maximum.

High-end welders may have an impact on excessive droplets.

If only the current and thrust are adjusted, the thrust can adjust the arc striking effect and the penetration depth and combustion stability during arc welding, especially affecting the quality of the weld forming.

The arc blowing force and stiffness are related to the welding current, when welding in the three positions of vertical and horizontal elevation, if the blowing force and stiffness are adjusted by increasing the current, it will cause problems such as undercut, welding nodules, collapse, etc., at this time, the arc thrust can be adjusted to obtain a suitable arc for welding without increasing the current. In flat welding, the thrust current is also not easy to be excessive.

The specific parameters depend on the material, thickness, weld position, length, workpiece structure, etc. to design the process parameters, which is more complicated, and can generally be sampled first. Welding is a type of skilled technology, which must be combined with theory and practice, but also do not be superstitious about theory, and the actual operation should be flexible. The textbook says that the electrode arc welding should be dragged by the electrode, and it is not allowed to push it, but sometimes it is better to push it away, but it is necessary to prevent defects.

The technical soul of welding is to control the arc, and according to the situation of the molten pool, the first thing to learn to observe the molten pool is to learn to observe the molten pool in ordinary operation, and then to control the arc to obtain a high-quality molten pool, and the molten pool is good for the weld.

The role of the thrust current of the welding machine, the master said the advantages and disadvantages, and how to adjust it in welding.

What is the function of the thrust current and arc current of the electric welding machine, you will understand after reading it.

The function of the thrust force is to prevent the arc from breaking during the welding process, when the current is on a downward trend during the welding process, it will automatically compensate and increase the current to avoid arc breakage.

In addition, there is hot arc, its role is to assist arcing, when the current is small, the effect is relatively obvious, in the case of high current, there is no significant effect.

The greater the thrust, the easier the arc starts, the instantaneous current is large, and the welding rod has strength.

1. Thrust current: refers to the fact that when the molten iron is in a short circuit transition during welding, the welding machine superimposes a current to make the molten iron transition stable and not easy to stick to the strip. The function of the thrust current is to prevent the sticking of the strip when the welding current is greater than 100A, and the thrust current is rotated to 0 when the welding current is greater than 100A, otherwise the spatter will increase.

2. The thrust function is to prevent the sticking welding of the hollow strip, the disadvantage is that the spatter is large, the normal arc is subject to the non-stick welding rod, try to choose the minimum thrust current, the design thrust of the ordinary welding machine is generally ten amps, and the downward welding machine is generally ten to fifty amps, the ordinary welding machine can not make the cellulose electrode, but the downward welding machine can use ordinary welding rods, and the thermal arc initiation is the ordinary welding machine to increase the arc voltage.

Summary. Hello, the thrust current adjustment method is mainly: generally under the action of small current, the welding rod can not be beaten, or it is easy to stick to the bar, at this time, open the thrust current, which will instantly increase the current to more than double.

Usually our welding current is adjusted according to the operation specification, so it is not recommended to turn on the thrust current at this time, just turn it off to 0, otherwise it is difficult to control the current, resulting in excessive spatter or burn-through of the weld bead.

Hello, the main method of pushing the silver shirt force current adjustment is: generally under the action of small current, the welding rod is not the first to laugh, or it is easy to stick to the bar, and the thrust current is turned on when the balance is raised, which will instantly increase the current to more than double. Usually our welding current is adjusted according to the operation specification, so it is not recommended to turn on the thrust current at this time, just turn it off to 0, otherwise it is difficult to control the current, resulting in excessive spatter or burn-through of the weld bead.

The main reason for the delay in adjusting the welding arc current is that the current generated at the moment when the electrode and the weldment are in contact, and the larger the arc starting current, the easier it is to ignite the electrode. However, the front end of the welding rod generally has an arc initiator, which is quiet, so the arc current is also closed, and it can be yard to 0.

Have a great day! Happy every day

Summary. The panel of the DC inverter welding machine is equipped with an output DC current adjustment knob, and the inverter DC welding machine first carries out bridge rectification and filtering of single-phase AC 220V voltage or three-phase AC 380V voltage, and supplies the power switch device for inverter treatment.

It can be operated on the output DC current adjustment knob, which is 120-150A.

The inverter DC welding machine is equipped with an output DC current adjustment knob on the panel, and the inverter DC welding machine first carries out bridge rectification and filtering of single-phase AC 220V voltage or three-phase AC 380V voltage, and supplies the power of the large disturbance rate of the open and closed device for inverter processing and imitation.

A small number of inverter welding machines first use 555 time base electricity such as answering circuit and other pulses to generate a rectangular pulse wave, use a triode for current amplification, and use a pair of complementary FETs for voltage amplification, so as to generate high-frequency signals, use a step-up transformer for voltage boosting, and get inductive alternating current on the secondary winding, and the size of its power depends on the amplification capacity of the amplification circuit.

I hope the above is helpful to you If you are satisfied with me, please give me a thumbs up

Summary. Hello, the current of the welding machine can be adjusted to 50-600A, and the specific adjustment of the current should be reasonably arranged according to the welding rod and welding method. 1. The welding current required is also different due to different welding rod specifications.

For example, the current of welding electrodes is usually adjusted to about 115-130A. For welding electrodes, the current can be adjusted to about 145-175A. Welding electrode, welding machine current can be adjusted to about 180-210A and so on.

Generally, the larger the electrode specification, the greater the welding current. 2. Different welding methods will require different welding currents. Under normal circumstances, the welding electrode is welded by flat welding, and the welding current of the electric welding machine should be increased, and the welding current required for vertical welding, horizontal welding, and vertical welding will be relatively smaller.

For example, if the electrode is welded by the upward welding method, the current of the welding machine can be adjusted to 140A. If the electrode is welded by vertical welding or horizontal welding, the welding machine current can be adjusted at 140-160A. The welding electrode is welded by flat welding, and the current of the welding machine can be adjusted to more than 180A.

3. If you need to use multi-layer multi-layer welding, you also need to adjust the current according to the welding level. Generally, the welding current of the bottom layer is the smallest, the welding current of the filling layer is the largest, and the welding current of the cover layer is relatively small.

Please wait patiently for a few minutes, we are sorting it out, and we will answer you immediately, and please do not end the consultation.

Hello, the current of the welding machine can be adjusted to 50-600A, and the specific adjustment of the current should be reasonably arranged according to the welding rod and welding method. 1. The welding rod specifications are different, and the welding current required is also different. For example, the current of welding electrodes is usually adjusted to about 115-130A.

For welding electrodes, the current can be adjusted to about 145-175A. Welding electrode, welding machine current can be adjusted to about 180-210A and so on. Generally, the larger the electrode specification, the greater the welding current.

2. Different welding methods will require different welding currents. Under normal circumstances, the welding electrode is welded by flat welding, and the welding current of the electric welding machine should be increased, and the welding current required for vertical welding, horizontal welding, and vertical welding will be relatively smaller. For example, if the electrode is welded by the upward welding method, the current of the welding machine can be adjusted to 140A.

If the electrode is welded by vertical welding or horizontal welding, the welding machine current can be adjusted at 140-160A. The welding electrode is welded by flat welding, and the current of the welding machine can be adjusted to more than 180A. 3. If the jujube width is good, it is necessary to use multi-layer multi-layer welding, and we also need to adjust the current according to the welding level.

Generally, the welding current of the bottom layer is the smallest, the welding current of the filling layer is the largest, and the welding current of the cover layer is smaller.

Let's start with a few terms.

"Welding current": is the current flowing through the electrode between the welding workpiece, the larger the current, the faster the electrode dissolves. The deeper the weld pool of the workpiece.

"Arc Striking Current": is electric welding.

The current at the moment of arc initiation in contact with the welded workpiece, the larger the arc striking current.

It is easy to ignite the electrode.

"Thrust current": is the current that generates a thrust between the welded workpiece and the electrode during continuous welding. The magnitude of this current varies from person to person.

The "welding current", "arc current" and "thrust current" on the welding machine are proportional to each other, and the welding current can be adjusted in general.

Thrust current: It is a current that generates a thrust between the welded workpiece and the welding rod during continuous welding, which is mainly used to control the short-circuit current.

The ratio to the welding current.

If the ratio of short-circuit current to welding current is large, the arc is easy to trigger and the arc penetration is strong, but the spatter will increase. On the contrary, the ratio is small, the arc is softer, and the spatter is less, but it is easy to produce the phenomenon of sticking to the welding rod.

If you set a small welding current value, it may be easy to stick to the soldering process, and once the machine detects that your short-circuit voltage has dropped, it will immediately add a current to your normal current value. In this way, when the current is large, the place where the electrode adheres will be heated and melted, and even the metal vaporization will occur at the short circuit (**), but it feels like the electrode is pushed away, so this additional current is generally called the thrust current.

[Arc thrust adjustment knob].

When it is at the indicated maximum, the ratio of short-circuit current to welding current is the largest, and it is generally used when welding with low current; In the middle position, the ratio is moderate, which is suitable for most occasions; When the minimum value is the smallest value, the ratio value is the smallest, and it is generally used for high-current welding.

In a nutshell:The thrust current is the amount of current that is added to the base of your normal welding current, regardless of whether you turn it up.

Small, it is not reflected in normal arc welding.

The higher the temperature under the arc atmosphere, the gas is easy to be ionized to produce an arc, and the arc is not easy to extinguish, so in this case, there is generally no need for thrust current.

In short: thrust current is used more when welding with small current, and large current is generally not used, and the specific value depends on personal habits.

Thrust current regulation:

When welding with a smaller specification, the thrust current can be increased by adjusting the thrust current, so that the electrode is not easy to bond with the workpiece, which is convenient for the smooth transition of the molten droplets, and is easy to weld. Normally, it requires the welding voltage to be lower than 15V to work, that is, when the electrode is very close to the workpiece. Generally, the thrust current can be appropriately reduced or even not added during normal standard welding, so that the spatter is as small as possible and easy to weld.

Arc Strike Current Regulation:

When welding with a smaller specification, the success rate of arc striking can be increased by adjusting the arc striking current appropriately. It is to increase the short-circuit current at the moment of short-circuit to facilitate arc starting.

Answering the thrust current can increase the value of the short-circuit current, so that the electrode is not easy to bond with the workpiece, which is convenient for the smooth transition of the molten droplet, and is easy to weld. The thermal arc current can increase the success rate of arc starting, and increase the short-circuit current at the moment of short circuit to facilitate arc starting. The electric welding machine uses electric energy to convert electrical energy into heat energy instantly, electricity is very common, the electric welding machine is suitable for working in a dry environment, does not require too many requirements, because of the small size, simple operation, easy to use, fast speed, after welding.

How big should the question be.