How to avoid edge chipping when cutting glass with water jet ?

When waterjet cutting glass products, some equipment will have the problem of chipping and uneven glass edges after cutting. In fact, a well-established waterjet has such problems. If there is a problem, the following aspects of the waterjet should be investigated as soon as possible.

1. The water jet pressure is too high

The higher the waterjet cutting pressure, the higher the cutting efficiency, but the stronger the impact will be, especially for glass cutting. The backflow impact of water will cause the glass to vibrate and easily cause uneven edges. Properly adjust the water jet pressure so that the water jet can just cut the glass. It is most appropriate to keep the glass from impact and vibration as much as possible.

2. The diameter of sand pipe and nozzle is too large

The sand pipes and jewel nozzles should be replaced in time after they are worn out. Because the sand pipes and nozzles are vulnerable parts, they cannot be concentrated after a certain amount of water column is consumed, which will impact the vicinity of the glass and finally cause the edge of the glass to break.

3. Choose good quality sand

In water cutting, the quality of waterjet sand is directly proportional to the cutting effect. The quality of high-quality waterjet sand is relatively high, average in size and relatively small, while inferior waterjet sand is often mixed with sand particles of different sizes and low quality. , Once used, the cutting force of the water jet will no longer be even, and the cutting edge will no longer be flat.

4. Cutting height problem

Water cutting uses water pressure, the cutting outlet pressure is the largest, and then decreases sharply. The glass often has a certain thickness. If there is a certain distance between the glass and the cutter head, it will affect the cutting effect of the waterjet. Waterjet cutting glass should control the distance between the sand tube and the glass. Generally, the distance between the sand pipe and the glass is set to 2CM.

In addition to the above aspects, we also need to check whether the pressure of the water jet is too low, whether the sand supply system is normally supplied, whether the sand pipe is intact, etc., it is better to check more settings, adjust and record the optimal value Avoid edge chipping during glass cutting

Post time: Jul-29-2021