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1、 Product Overview:

The pulse test bench designed and manufactured by our company is a high-performance test bench developed by drawing on advanced foreign experience and combining it with the actual needs of the corresponding industry in China. The main components of the equipment are imported hydraulic components, combined with NI's (LABVIEW software) measurement and control software, making the entire equipment easy to operate, stable in performance, and capable of conducting various pressure pulse tests.

2、 Scope of application:

Automotive steering pipes, brake pipes, air conditioning pipes, fuel pipes, cooling water pipes, heat dissipation hoses, warm air hoses, air filter hoses, worm gears, boost system hoses, engineering hydraulic hoses, aviation hoses and manifolds, hard pipes or fittings, heat exchangers, air conditioners, filters, etc.

Reference execution standard:

GB/T7939 GB/T5568 GB/T3683 GB/T12722 GB/T14904 GB/T12722 GB/T20461 GB16897 GB/T15908 GB/T5568 GB/T10544 GB/

T7127.1-2000 ISO6803 ISO6802 ISO11425 ISO6772 TL82415 TL52361 ES 6G91-3A719-AA SAE J1405 SAE J343

3、 Main technical parameters:

Maximum pulse pressure: 80MPa, pressure display accurate to 0.1MPa-

Pulse frequency: 0.5-1.25Hz

Vibration frequency: 10-50Hz

Bending frequency: 0.5-1.0Hz

Test medium: hydraulic oil or brake fluid

Oil temperature: ambient temperature~150 ± 3 ℃

Cycle times:>10 million times

Number of specimens: 2-8 pieces (depending on the total volume and physical properties of the specimens)

Test waveforms: square wave, trapezoidal wave, triangular wave, sine wave

Installation angle: 90 degrees or 180 degrees

Interface spacing:> 90mm

Control mode: industrial computer

Cooling method of power system: water cooling

4、 Main functions and features:

Composed of a computer and an American NI acquisition card (LABVIEW software) control system, it adopts electro-hydraulic servo control, and the pulse pressure can be adjusted arbitrarily within the adjustment range, with high precision control.

Multiple channels and workstations can conduct multiple tests simultaneously without affecting each other. When the tested workpiece explodes during the pulse test, it does not affect other workpieces to continue testing, achieving unmanned operation. Experimental data and graphics are automatically recorded and saved in the computer.

Using computers for data collection, control, and management. Pulse pressure, ambient temperature, medium temperature, test frequency, waveform can all be set through the human-machine interface and can be printed out.

By using an accumulator to supplement pressure, the reliability, stability, and service life of the pressurization system are improved, while ensuring pressure accuracy.

At the beginning of the experiment, the gas inside the sample is automatically eliminated (for hose testing), and when the number of test pulses is reached, the machine stops automatically. It also has the function of automatically recovering the leaked medium after disassembling the tested workpiece.

The inner layer of the observation window is a protective net, and the outer layer is organic glass, ensuring maximum personal safety. Built in lighting facilitates the installation and removal of workpieces and observation of internal testing conditions in case of poor light conditions.

The hydraulic oil cooling method adopts the self circulation cooling of hydraulic oil in the oil tank and the addition of a water cooler for cooling. The effective volume of the oil tank is 10 times the flow rate of the pump station, so it has good heat dissipation; In order for the motor pump unit to work for a long time, a water-cooled radiator is installed on the outside of the oil tank body to dissipate heat from the oil tank.

It consists of two parts: the control cabinet and the specimen box. The equipment layout is reasonable, with water and electricity separated, and all pipelines are connected with stainless steel pipes.

Different fixtures and jigs are suitable for connecting rubber hoses and rubber hose assemblies;

Can be tested with flex pulse and without flex pulse* (Optional)