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Suggestions Before Buying Quality Water Pressure Nozzles Machinists must analyze how to use ultra-high-pressure--uhp--water blasting equipment and what types of materials and parts they will cut before adding it to their workshop. Selecting a specific kind of water pressure nozzle will rely upon the planned use Cheap Nike NFL Jerseys , although the water jet machine will be the same.
Pure water jets use a simple valve with a single cavity which aims the high-speed (up to 600 mph) water 'beam' at the material. Regularly cleaning the nozzle is needed, but It has a relatively long working life if maintained properly. When water is pumped through the jet, mineral deposits or foreign matter can clog it, which is why regular cleaning is needed. To extend the nozzle life when water supply is very 'hard', the machine manufacturer may suggest installing a water softener or filtering system.
Pure water jets are utilized for cutting a number of materials such as foil or particularly thin sheet metal; foam; soft rubber; carpet; food such as meat or candy bars; soft or thin wood; paper or cardboard; diapers; soft gaskets. Orifices are 0.007' (0.18 mm) to 0.020' (0.4 mm) in diameter, producing a more rapid and forceful jet when the diameter is smaller. A complete assembly of water jet nozzle can cost from $500 to $1000 US dollars. Changing of a new orifice, which can be done in minutes, costs $5 to $50.
An abrasive jet can be used to cut harder materials. Adding a mixing tube to the pure water jet nozzle by the abrasive jet nozzle so that an abrasive such as powdered garnet can be incorporated into the steam, which then exits a second opening with much greater force. Mixing tubes wear out and requires replacement after 20 to 80 hours; and the very abrasive that generates the cutting stream also erodes the orifice of the mixing tube. A mixing tube's working life varies and is dependent to the conditions it was used; an indication of wear involves absence of power and precision in cutting.
An abrasive jet nozzle permits cutting of many kinds of materials. It can cut metals such as steel (mild, hardened or stainless), titanium, aluminum, copper or brass; stone such as granite or marble Cheap NFL Jerseys China Wholesale , hard wood or rubber; composite or mixed materials; plastics; artificial materials such as Kevlar; glass (even bulletproof, but not tempered glass, which is intended to shatter); carbon fiber or graphite; and a number of ceramics. The abrasive jet nozzle can be bought at a price range of $800 to $2000 US dollars and it also requires additional hardware to feed in the abrasive powder. That hardware costs from $500 to $2000.
It is possible to recycle a worn mixing tube by boring out its orifice from the original diameter of 0.030' (0.76 mm) to a new size of 0.040' (1.0 mm). The recycled mixing tube can then be used for jobs that require less precision.
In many cases both types of nozzles will be needed at different times, especially by 'job shop' machinists who do one-off or short-run parts for many different customers. The apparent ease and speedy interchanging of the nozzles, it enables the machinist to do work on any type of part or material.
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