压力表出厂前，需要对样品进行耐久性试验，即疲劳试验。反复按压和释放压力数万次，以确定压力是否合格。开云在线官方所生产的压力表疲劳试验台，通过电脑控制的增压系统，可以进行反复的增压、泄压操作。下面来讲讲压力表疲劳试验台的组成与测试内容吧。
Before the pressure gauge leaves the factory, it is necessary to carry out durability test on the sample, that is, fatigue test. Press and release the pressure repeatedly for tens of thousands of times to determine whether the pressure is qualified. The fatigue test bench of the pressure gauge produced by our company can repeatedly pressurize and relieve pressure through the computer-controlled pressurization system. Now let's talk about the composition and test content of the pressure gauge fatigue test bench.
压力表疲劳试验台的组成：
Composition of pressure gauge fatigue test bench:
疲劳试验台主要由加压水泵、加压阀和泄压阀组成，构成加压泄压系统。在控制系统、数据采集系统等辅助测控装置的配合下，自动完成疲劳试验的循环动作和试验。对结果进行判断和统计，形成检测报告。试验过程中可实现无人操作。
The fatigue test-bed is mainly composed of a pressurized water pump, a pressurized valve and a pressure relief valve, forming a pressurized pressure relief system. With the cooperation of control system, data acquisition system and other auxiliary measurement and control devices, the cycle action and test of fatigue test are automatically completed. Judge and count the results, and finally form a test report. Unmanned operation can be realized during the test.
试压泵的转速由变频器根据设定的高压水源压力进行控制，使高压水源压力尽可能保持稳定。用节流阀调节充放电流量，达到试验要求的升压和泄压所需时间。通过以上措施，在被测样品失效前保证了每次升压和降压过程的一致性。当发生故障时，压力会发生突变，测试系统可以监测被测样品的异常压力。判断早期失败（与设定的试验次数相比）。
The rotating speed of the pressure test pump is controlled by the frequency converter according to the set high-pressure water source pressure, so as to keep the high-pressure water source pressure as stable as possible. Adjust the charge and discharge flow with throttle valve to meet the time required for pressure rise and pressure relief required by the test. Through the above measures, the consistency of each step-up and step-down process is ensured before the tested sample fails. When a fault occurs, the pressure will suddenly change, and the test system can monitor the abnormal pressure of the tested sample. Judge the early failure (compared with the set number of tests).
压力表疲劳试验台的测试：
Test of pressure gauge fatigue test bench:
该测试系统主要应用于各式压力表和压力变送器的耐压强度和疲劳测试。
The test system is mainly used to test the compressive strength and fatigue of various pressure gauges and pressure transmitters.
主要技术参数：
Main technical parameters:
脉冲试验压力范围：0-20Mpa
Pulse test pressure range: 0-20mpa
可同时试验：1-10只(可选)
Can be tested at the same time: 1-10 (optional)
试验介质：液压油、导热油或乙二醇
Test medium: hydraulic oil, heat transfer oil or ethylene glycol
脉冲频率：0-1Hz（0-60次/Min）
Pulse frequency: 0-1hz (0-60 times /min)
恒压精度：-0.5%～＋0.5%
Constant voltage accuracy: -0.5% ～ + 0.5%
电源电压：交流380V
Power supply voltage: AC 380V
控制系统：电动控制
Control system: electric control
气液增压泵厂家提醒您，压力表试验台由低压动力泵、高压增压器、冲水泵以及电路控制系统组成。可以完成压力表的疲劳试验，与基准表相对比，测试压力表稳定性与准确性，可以自行设定试验压力与试验次数、试验频率，达到试验次数，自动停机并报警的功能。
The manufacturer of gas-liquid booster pump reminds you that the pressure gauge test bench is composed of low-pressure power pump, high-pressure booster, flushing pump and circuit control system. It can complete the fatigue test of the pressure gauge, compare with the benchmark gauge, test the stability and accuracy of the pressure gauge, and set the test pressure, test times and test frequency by itself, so as to achieve the function of test times, automatic shutdown and alarm.
That's all for the composition and testing of the pressure gauge fatigue test bench. If you have any questions, please come to our website //keonnected.com Consult and understand!
