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Knowledge summary of imported water jet cutting

2020-11-10 16:48:04
Times

As a new cutting technology, water jet cutting is gradually widely used in people's production and life. The advantages of this new cutting method are numerous, far more than other cutting methods. In the glass, stone, ceramics, metal and special fiber food cutting and processing industries, the traditional method is to use diamond cutter for cutting, sawing and milling, and so on. Its cutting thickness range is very large (especially stone), and the speed is relatively fast. But for the conventional thickness of the plate, water knife cutting machine can cut any curve with high precision, and the yield is extremely high It has the advantages of high cost, low cost and high added value.

So what knowledge about this kind of cutting equipment is worth our attention and understanding? Here are some important conclusions, including:

1. What is the accuracy of this kind of cutting?

Its cutting accuracy is + / - 0.1 mm. If the dynamic water cutting machine is used, the cutting accuracy can be improved, and the cutting slope can be eliminated.

2. How much thickness can this kind of cutting reach?

Under relatively general circumstances, this kind of cutting equipment can completely cut any material (except tempered glass) with the thickness of 0-50 mm. In test and actual production, it has cut stainless steel material with the thickness of 100 mm.

3. If it's a sanding water jet, what else should we pay attention to and what kind of choice should we have?

This kind of cutting equipment, its commonly used abrasive is garnet sand, good quality garnet sand is reddish brown, and you can see that it is not divided into impurities, the edge of the particles is very clear, this is a good quality abrasive.

4. How wide is the cutting seam?

Its cutting seam is about 10% larger than the actual diameter of the cutter tube. Generally, it is 0.8mm-1.2mm according to the measurement

5. Since it is a high-pressure water jet cutting equipment, what should we pay attention to in terms of the pressure of this cutting equipment?

If you want to carry out fast and efficient cutting, it is recommended to use high cutting pressure. Although this will increase a small amount of equipment loss, the benefit brought by the improvement of relative efficiency is still higher than the maintenance cost. Generally speaking, the main interest of sand cutting is labor cost, abrasive interest and depreciation cost

6. What is the slope of the water jet cutting plane?

Generally speaking, if the dynamic cutting system is not used (the dynamic cutting system can eliminate the slope of the cutting plane - see the earth deflection cutting head for details), the appearance of the water jet cutting will have a certain slope, generally the slope will be 3-5 degrees. The smaller the thickness, the slower the cutting speed, the smaller the slope.

7. How long is the actual service life of the working table grille of this cutting equipment?

If the parts with the same pattern are not cut on the same position for a long time and can last for hundreds of hours, the grille should be replaced according to the actual cutting accuracy requirements, and the seriously damaged grille is easy to affect the cutting accuracy. Moving and turning the work table grille can prolong its service life and reduce the cost. In view of the problems encountered in water jet cutting, it is a good habit to use the equipment and reduce the cost.

8. Does water jet cutting need fixture fixation?

From a mechanical point of view, the material in the water jet cutting process only bears the force in the vertical direction, and the force in the horizontal direction is very small. Generally, there is no need for a large fixed fixture, and the lighter material needs to be pressed with a heavy weight when cutting, so as to prevent the impact of back flushing water from affecting the machining accuracy.

9. If underwater cutting is selected, its advantages are as follows:

a. It's the noise. Reduce the noise to below 75db;

b. The influence on the material itself includes: reducing the frost phenomenon on the surface of the material

10. How about the operation interest of this kind of equipment? Will it be very large?

Operation includes: water and electricity consumption, abrasive loss of sanding water jet, depreciation of equipment, maintenance labor and other operation costs, etc. Of course, some prices vary according to the location and region

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