Tungsten Alloy High Speed Water Jet Nozzles

Product Description

Tungsten Alloy High Speed Water Jet Nozzles is the executive component of the high-pressure water jet generating device. Its function is to gather the pressure energy of the high-pressure water through the shrinkage of the nozzle inner hole cross-section, and convert it into kinetic energy, and finally in the form of high-speed water jet It is sprayed out to clean, crush or cut the material.

According to the nozzle type, there are cylindrical nozzles, fan-shaped nozzles, special-shaped nozzles, etc.; according to the number of holes, there are single-hole nozzles and multi-hole nozzles; This article introduces the types of nozzles classified by shape.

1. Cylindrical nozzle

This type of nozzle is developed on the basis of the conical convergent nozzle, and is the most commonly used continuous water jet nozzle at present. Figure 1 shows several common cylindrical nozzles, a is a typical high-pressure nozzle, and its pressure range can reach ZooMPa, which is used for spray guns, and the length and angle of the convergent section ensure that the jet bundle ratio b is used for another gun Cylindrical nozzles are characterized by self-threaded connection, small axial size, and easy to use. Their working pressure is limited to 100MPa; c-type nozzles are combined in two sections in order to extend the size of the convergent section and facilitate processing. This method is not commonly used. ;The d-type nozzle is to facilitate the processing of 0.5mm nozzle hole diameter, the nozzle is made into a nozzle orifice plate embedded in the nozzle body; the e-type nozzle provides a type of internal thread connection.

2. Fan nozzle

The fan nozzle produces a flat and uniform flat jet directly from the shape of the nozzle. The jet is dense and the divergence angle can also be changed in a wide range. Its industrial application varies according to the flow, velocity, jet and coverage. The cleaning area of the fan-shaped nozzle is much larger than that of the cylindrical nozzle, and it is successfully used in concrete roughening operations; due to the extreme diffusion of the jet, the energy of the jet and the impact pressure are greatly lost, so higher pressure is often required in actual use. The structure of the high-pressure fan-shaped nozzle is shown in Figure 2, and the pressure of the a-type nozzle is 75MPa. The disadvantage of this self-connecting thread is that it is not conducive to the adjustment of the position of the fan-shaped jet, because the fan-shaped jet is directional; the b-type nozzle is only a core body, and its working pressure can reach up to 200MPa. The cylindrical section of the nozzle is completely different from the type a, which is caused by high pressure requirements. The type c nozzle is a combined fan nozzle. The combined nozzle seems to be more complicated to process, but it has reliable molding, different materials, wide adaptability, and is easy to serialize.

3. Shaped nozzle

In order to improve the clustering performance of water jets, various types of special-shaped nozzles have also begun to be commercialized from the laboratory. Figure 3 shows the special-shaped nozzles of the American AQUT-DYNE company. The commonality of the jets produced by these nozzles is that they have sharp edges. The plane prevents the air from wrapping the jet; the nozzle structure is that the nozzle core of this different shape is placed in the external thread nozzle body and connected with the nozzle. The test proves that the special-shaped nozzle of the abrasive jet can greatly improve the performance of the traditional cylindrical nozzle, and the special-shaped nozzle can reduce the pressure and power of the water jet.

Metal Injection Molding Process

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