Waterjet parts sand tube is an important part of the water jet cutting machine, high pressure water in its body is changed into people want flow rate and flow path, so as to achieve the purpose of arbitrary cutting mosaic materials. Under the ultra-high pressure, waterjet parts sand tube internal working environment is very bad, in working process is easily damaged, which requires the sand tube inner wall of the structure, material and performance to reach certain indicators, to complete its work task.
1, Structure: Structurally, waterjet parts sand tube design is not complicated, mainly by the tapered end and cylindrical side configuration, size is determined according to actual needs.
2, Materials: Because of the special requirements of the work environment, waterjet parts sand tube material must have good wear resistance, strong hardness, appropriate toughness, good bending resistance, so as to adapt to the high-speed friction. Currently, nano tungsten carbide steel is the preferred material of making sand tube.
3, Wear forms: from physics point of view, the upper cone lower column design principle of sand tube is to improve the wear resistance of sand tube. In addition to wear resistance will affect the extent of the waterjet sand tube damage, wear form is one of the main factors, at the time of production of waterjet sand tube, inner wall to be smooth and mellow, to minimize the presence of friction factors, which is the key also ensure that the waterjet sand tube length of life.
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