Drive nozzle selection and maintenance
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The nozzles of the printer can be divided into two categories:
1. Gem nozzle This nozzle is commonly used in early inkjet printers. The nozzle is extruded into a stainless steel outer circle with a diameter of about 2 mm. The gemstone has a hole with a diameter of 30-80 microns.
2. Stainless steel nozzles Nowadays, most stainless steel nozzles are made of a stainless steel disc with a diameter of about 5 mm and a thickness of 1 mm. On the top, a hole with a diameter of 30-80 is burned by laser.
Comparison of two nozzles:
1. Production process In the process of making gemstone nozzles, the gemstone pieces are easily crushed and complicated. The stainless steel inkjet printer is relatively simple, as long as the laser is used to punch holes in the stainless steel piece.
2. Finish The gem nozzle has a high finish and no burrs. The stainless steel nozzle is burnt by laser, the burr is generally more, not smooth. However, by grinding, the finish can also reach the level of the gem nozzle.
3. Adjusting the breakpoint of the gemstone nozzle Because the distance between the gemstone piece and the crystal shock is not fixed (the depth of the gemstone in the outer circle of the stainless steel is determined by the strength of the extrusion process), it is troublesome to adjust the good breakpoint. The thickness of the stainless steel nozzle is due to the thickness. Consistent, basically as long as the grinding is better, it is easy to break out a good point.
4. Cost comparison Gem nozzles are much more expensive than stainless steel nozzles.
Nozzle maintenance
In the process of using the printer, if the nozzle is clogged or slightly blocked, it is impossible to code or code. If the unit can be removed, put it in the ultrasonic wave. There are some simple ones. Ways, such as putting the nozzle in a bottle cap, put some diluent in it (or put some water, because there may be some inorganic salts and the like, the diluent can not dissolve. It is not possible to use dilute hydrochloric acid. No longer Only replace the nozzle), hold the bottle cap by hand, tap with a tweezers or a screwdriver, the general blockage can be washed. There are some cases where the nozzle is slightly blocked, such as the viscosity is appropriate, the total break is not good, not good It is unstable. This can be used to pass the filter screen to the nozzle. (Requires experienced maintenance personnel or operators)