Company News

• what is WAMIT direct drive pump?

  2019 / 04 / 15

  The direct drive PUMP is a device that directly converts electric energy into water pressure energy by the crankshaft linkage mechanism, and the energy conversion ratio is as high as 97% or more. Since the power conversion ratio of the conventional asynchronous motor is 80%, the permanent magnet servo motor The power conversion ratio is more than 97%, so the servo permanent magnet motor is used instead of the asynchronous motor to greatly improve the power usage of the supercharger, and the conversion rate is maintained above 90%, while the energy conversion rate of the conventional hydraulic booster is only 56%. , (56% conversion rate is only in the state of full work). In the traditional hydraulic system, the asynchronous motor still keeps turning when the waterjet is not cut (such as the movement of the cutter head, changing the cutting material, etc.), and the oil pump is still in working state. Although the pressure of the oil pump is not high at this time, 30% of the power is still present. Loss, even with the servo-power oil pump, the asynchronous motor still has to maintain its own rotation and power magnetic field, still has 30% loss. This supercharger can completely eliminate this phenomenon. The supercharger adopts the full servo working principle. Only when the cutting head has high pressure water output, the motor works, avoiding the energy consumption of the original hydraulic booster pump in the non-cut state, and achieving the energy saving effect.

• compare WAMIT direct drive pump and intensifier pump

  2019 / 04 / 15

  The working principle of the hydraulic booster pump is that the asynchronous motor drives the plunger pump to generate oil pressure, and the hydraulic system converts the oil pressure into water pressure. The normal hydraulic pressure and water pressure pressure ratio is 1:20. Take the mainstream hydraulic booster pump (60000Psi) and the Volmet servo direct drive pump (60000Psi) as an example. 1, the choice of motor The hydraulic booster pump uses a 37KW asynchronous motor. The power conversion ratio of the asynchronous motor is about 80%~85%. The Volmet servo direct drive pump uses a 15KW permanent magnet motor. The power conversion ratio of the permanent magnet motor is 97%. Therefore, the power saving of only one motor is: 60% or more 2, the way of pressure conversion (1) The hydraulic booster pump is an asynchronous motor that drives the plunger pump to generate oil pressure. The hydraulic system converts the oil pressure into water pressure, and the direct drive pump is a process in which the motor drives the crankshaft connecting rod to directly generate water pressure. It will cause energy loss, about 35%, so the direct drive pump is about 35% more energy efficient than the hydraulic booster pump. (2) The hydraulic booster pump pressurizes the oil through the reversing valve and then converts it into water pressure. The reversing valve will reduce the pressure at the moment of commutation, causing fluctuations in water pressure. For example, to set a pressure of 50,000 Psi, the minimum pressure after the fluctuation can reach 43,000 Psi, and the average pressure is about 45,000 Psi. The Volmet servo direct drive pump can maintain a constant pressure, setting 50000Psi, the output water pressure is 50000Psi, so the cutting efficiency will be greatly improved, (50000-45000) / 45000 = 11%, cutting efficiency will increase by 10% -20%. 3, control mode (1), hydraulic booster pump is generally started by

• what is water jet cutting advantages

  2019 / 04 / 15

  Advantage 1, a wide range of cutting Can cut most of the materials, such as: metal, marble, glass, etc. 2, good cutting quality Smooth cuts that do not produce rough, burring edges. 3, no hot processing Because it is cut with water and abrasives, it does not generate heat (or produces very little heat) during processing, which is ideal for materials that are affected by heat. Such as: titanium. 4, environmental protection This machine is cut with water and sand. This kind of sand does not produce toxic gas during processing, and can be directly discharged, which is more environmentally friendly. 5, no need to change tools You don't need to change the cutter unit, one nozzle can process different types of materials and shapes, saving cost and time. 6, reduce burrs The water knife is cut with abrasive sand, and the incision has fewer burrs. 7, programming quickly The program is mainly generated by CAD drawing software. You can design line drawings freely in the layout, or input DXF files generated from other software. In addition, the machine supports third-party software, such as nesting nesting typesetting software (for putting graphics in Filling the workpiece to minimize workpiece loss). 8, fast programming Other software-generated programs can be transferred to the machine. It can establish the tool path from CAD and can calculate the precise positioning and cutting speed of the cutter head over 2000 points/inch (800 points/cm). You need to do it. Just specify the material and thickness you want to cut, and the rest of the work is done to the machine. 9, combined with other equipment, you can operate separately Water cutting machines can be combined with other processing equipment (such as drilling heads) to take full advantage of their performance and optimize material utilization. 10, reduce the number of adjustments Only a