Specific instructions for the operating procedures of plasma cutting machines

This is a highly sophisticated industrial instrument. For such an instrument, we need to consider more about its practical use and prepare for our various industrial cuttings. But for such a highly sophisticated instrument, we still need to pay special attention.

Because if the precision instrument is not well protected, there may be problems and cannot work normally. In this way, we not only delayed the construction period, but also spent more money on repairs. Therefore, it is imperative for us to make plasma cutting machine operating procedures.

This article mainly introduces the operating procedures of this instrument in detail for reference and use. When it comes to the operating procedures of plasma cutting machine, let's first talk about the general requirements of cutting: first of all, we have to start cutting from the edge, and try not to cut through holes as much as possible.

By using the edge as a starting point, we can extend the life of the corresponding consumables. The correct way to do this is to use the nozzle to directly aim at the edge of the workpiece to be machined and then start the corresponding plasma arc. In addition, we should be careful not to elongate the plasma arc.

The reason for this is that the plasma arc can only reach the surface of the corresponding workpiece by elongation and expansion, and every time the plasma arc is at the beginning or end of cutting, it will produce tensile expansion. This can cause abnormal damage to the nozzle. Unnecessary arcing time is reduced during operation, as the corresponding nozzles and electrodes are consumed quickly during arcing.

This should place the torch within walking distance of the cutting metal before starting.

Plasma cutting machine.

A splash-proof chemical coating is required on the outer protective shell of this machine.

because the splash-proof chemical coating helps to some extent reduce the corresponding slag build-up on the protective shell. Painting is a matter of attention to the fact that the protective shell needs to be removed before painting and then the splash-proof paint is applied. In addition, we need to remove the slag from the protective shell, otherwise the slag will create a destructive heavy plasma arc.

After replacing the consumables, we remove the gas to ensure that the water and mist can be removed from the torch. Of course, this work needs to be carried out in a state of shutdown.

Plasma cutting machine.

We also need to keep the torch and corresponding consumables as clean as possible, as dirt on the torch and consumables can affect the proper function of the plasma system. When replacing consumables, place them on a clean flannel cloth, check the torch connection threads frequently, and use hydrogen peroxide detergents.

Clean the electrode contact surface and nozzle.

Plasma cutting machine.

In terms of cleaning, we should pay attention to the removal of oxides from air or oxygen nozzles. This is because when we use air or oxygen plasma, some oxides are deposited in the corresponding nozzles, which to some extent affect the airflow and reduce the life of the consumables. Therefore, we need to carefully clean the nozzle with a clean flannel cloth.

Plasma cutting machine.

The above is part of the specific description of the operating procedures of the plasma cutting machine, and I hope you must pay attention to the relevant problems in the application. This ensures that our tools can be used properly.

Plasma cutter operation instructions 5

Pay attention to whether the cutting air flow is properly adjusted, if it is a non-contact cutting gun, it is best not to press the switch when not cutting.

Plasma cutting machines are widely used in automobiles, locomotives, pressure vessels, chemical machinery, nuclear industry, general machinery, construction machinery, steel structures and other industries.

This is the first of its kind in the history of the metalworking industry to thermally process metals of these thicknesses (cutting, welding, brazing, quenching, spraying, etc.) by a safe, easy, effective, versatile and environmentally friendly method of obtaining plasma from water vapor.

Features: The plasma cutting machine can cut all kinds of metals that are difficult to cut with oxygen with different working gases, especially for non-ferrous metals (aluminum, copper, titanium, nickel); Its main advantage is that when cutting the metal with small thickness, the plasma cutting speed is fast, especially when cutting ordinary carbon steel sheets, the speed can reach 5 6 times that of the oxygen cutting method, the cutting surface is smooth, the thermal deformation is small, and there is almost no heat affected zone.

The plasma cutting machine, the working gas that can be used (the working gas is the conductive medium of the plasma arc, and it is also the heat carrying body, and the molten metal in the cut should also be excluded) has a significant impact on the cutting characteristics of the plasma arc, the cutting quality and the speed. Commonly used plasma arc working gases are argon, hydrogen, nitrogen, oxygen, air, water vapor and some gas mixtures.

1. Ensure the correct air pressure and flow of plasma.

2. Adopt a reasonable cutting distance.

3. The thickness of the perforation should be within the allowable range of the machine system.

4. Keep the plasma gas dry and clean.

5. Cutting should start from the edge.

6. Avoid the elongation and expansion of the plasma arc.

7. Reduce unnecessary "arc (or arc guide)" time.

8. Remove the slag on the protective shell.

9. Clear the gas after replacing the consumable parts.

10. Try to keep the torch and consumables clean.

11. Remove oxides from air or oxygen nozzles.

12. Use softened water to inject into the cutting torch.

13. Check the airflow and cooling flow every day.

Hello, 1. Manual non-contact cutting (1) Adjust the distance between the torch roller and the workpiece plane to 3 5mm. (When the main machine cuts, the "cut thickness selection" switch is turned to high grade). (2) Turn on the torch switch, ignite the plasma arc, cut through the workpiece, move to the cutting direction at an average speed, and the cutting speed is:

On the premise of cutting through, it should be fast rather than slow. Too slow will affect the quality of the incision and even break the arc. (3) After cutting, turn off the torch switch, the plasma arc is extinguished, and at this time, the compressed air is sprayed out with a delay to cool the torch.

After a few seconds, the squirting stops automatically. Remove the torch to complete the cutting process. 2. Manual contact cutting (1) The "cutting thickness selection" switch is used when cutting thin plates with a single machine as for low grade.

2) Place the torch nozzle at the starting point of the workpiece to be cut, turn on the torch switch, ignite the plasma arc, and cut through the workpiece, and then move at an average speed along the cutting seam direction. (3) After cutting, open and close the torch switch, at this time, the compressed air is still spraying, and after a few seconds, it will automatically stop spraying. Remove the torch to complete the cutting process.

3. Automatic cutting(1) Automatic cutting is mainly suitable for cutting thick workpieces. Select the Thickness Selection switch position. (2) After the torch roller is removed, the torch is firmly connected with the semi-automatic cutting machine, and the connecting parts are provided in the random accessories.

3) Connect the power supply of the semi-automatic cutting machine, and install the guide rail or radius rod according to the shape of the workpiece (if it is a guide rail for straight cutting, if it is a circle or arc, the radius rod should be selected). (4) If the plug of the torch switch is removed, replace it with the plug of the remote control switch (available in the included accessories). (5) Adjust the appropriate walking speed according to the thickness of the workpiece.

And put the "pour" and "forward" switches on the semi-automatic cutting machine in the cutting direction. (6) Adjust the distance between the nozzle and the workpiece to 3 8mm, and adjust the center position of the nozzle to the starting bar of the workpiece cutting. (7) Turn on the remote control switch, after cutting through the workpiece, turn on the power switch of the semi-automatic cutting machine, and you can cut.

In the initial stage of cutting, you should pay attention to the cutting gap at any time and adjust to the appropriate cutting speed. And pay attention to whether the two machines are working normally at any time. (8) After cutting, turn off the remote control switch and the power switch of the semi-automatic cutting machine.

At this point, the whole process of cutting is completed.

Wait a minute, dear. The air pressure is too low. When the plasma cutting machine is working, if the working air pressure is far lower than the air pressure required by the manual, it means that the ejection speed of the plasma arc is weakened, and the input air flow is less than the specified value, and the plasma arc with high energy and high speed cannot be formed at this time, resulting in poor incision quality, impermeable incision, and incision tumor accumulation.

The reasons for insufficient air pressure are: insufficient input air of the air compressor, too low pressure regulation of the air regulating valve of the cutting machine, oil stains in the solenoid valve, and unobstructed air path.

The use of plasma cutting machine is as follows:

1: In order to reduce energy consumption and improve the use time of the nozzle and electronic electrode, when cutting small workpieces, "low speed" cutting should be used as much as possible, the cutting efficiency and accuracy of our Huafei cutting machine at low speed are higher than those of other brands of the same kind, and the cutting is easy to cut through the workpiece and will not affect the normal progress.

Second: When the "Cutting Thickness" button is set to "High Grade", contact cutting should not be used (except in special cases), underwater cutting can be considered, which can be both dustproof and can maintain cutting stability.

Third: If you have to change the "cutting thickness" range, you must first turn off the main switch to avoid damage to the machine. This is particularly important, as the safe use of electricity is a basic common sense.

Fourth: When disassembling, assembling, or moving equipment, make sure to turn off the power before proceeding to avoid accidents. If it is disassembled and moved in the case of power-on, it is easy to cause voltage instability or short circuit, resulting in irreversible accidents.

Fifth: Cut from the edge as much as possible, rather than piercing the cut. Starting at the edge will improve friction life. The correct path is to aim the nozzle directly at the edge of the device before the plasma arc begins, and then make the cut. This ensures the stability of the curve of the cutting edge.

Sixth: do not overload the nozzle, the nozzle overload can easily cause damage to the nozzle (overload is the working current of the nozzle is too large). The current intensity should be 95 of the current nozzle normal working current.

For example, the current size of a 100A nozzle should be set to 95A. It should not be set too small, resulting in low efficiency.

Seventh: After cutting, the metal must be cut through, and then move at an even speed to keep the movement stable, otherwise the nozzle will be damaged. And cutting speeds that are too fast or too slow will affect the quality of the cut.

Eighth: When not cutting the workpiece, press the torch button as little as possible to avoid damaging the machine. During the use of the equipment, it is easy to affect the equipment due to high temperature or environmental pollution, so the equipment should be kept clean and tidy as much as possible, reduce frequent meaningless operations, and increase the service life.

Ninth: After the workpiece is cut, please be sure to turn off the power switch and air supply valve, so as not to affect the re-use, stop when you run out, and turn off the power, which is an important factor in the use of our equipment.

First supply power and gas to connect the bottom line, and finally hold the cutting nozzle in your hand and stick it to the base metal, press and hold the switch, pay attention to wear protective glasses.

How to use: 1. Preparation: First of all, prepare a plasma manual cutting line, because of the cutting distance, to ensure that the length of the cutting line is long enough.

2. Remove the wire on the original welding machine, and properly put it aside after removing the air pipe and protective wire.

3. Find the receiving cutting line and connect it with the welding machine at the widening joint.

4. Carefully check the installation and connection of the air pipe, circuit, protective wire, etc., and there can be no mistakes.

5. Carefully check the gun head after the traces are prepared, and install and tighten the gun head.

6. Then turn on the switch, and you can cut the place that needs to be cut.

Extended Materials. Problems to pay attention to when using plasma cutting machine:

1. In the process of using the plasma cutting machine, the flow rate of the air compressor should be greater than cubic meters per minute, and the working pressure range is between megapascals.

2. When using arc striking to cut the plate, the arcing should start from the edge position of the workpiece.

If you want to cut from the middle of the sheet, you need to drill a small hole in the middle and then arc from the edge of the hole.

3. Before cutting, turn on the power switch for a period of time, so that the air flow can circulate for a period of time, so that the condensation vapor in the torch can be removed.

4. In the process of cutting the plate with a plasma cutting machine, the speed of cutting must be appropriate, and the speed that can cut through the workpiece can be done.

If the speed is set too fast, it is easy to burn the nozzle by the anti-slag, and if it is too slow, it is easy to reduce the service life of the nozzle, and there may be more residual slag because the slit becomes wider, resulting in arc breakage.

5. In the process of cutting the plate, the motor and nozzle of the mechanical equipment must be checked frequently, and if the loss is found to be more serious, it should be replaced in time.

6. When the plate stops cutting, the switch of the cutting torch should be loosened first, and then let the cutting torch leave the processed plate.

Plasma cutter 1 pressure range; In the process of using the plasma cutting machine, the flow rate of the air compressor should be greater than cubic meters per minute, and its working pressure range should be between megapascals. 2 drilling; When cutting a sheet metal with arcing, the arcing should be done from the edge of the workpiece. If you want to cut from the middle of the plate, you need to drill a small hole in the middle of the hole and then arc from the edge of the hole.