Autofrettage
Pressure Equipment
Description
Autofrettage is a method for increasing fatigue strength of components for use at high and pulsating pressures. In short, Autofrettage compresses a container’s inner surface, making better use of the material’s structural properties. The process can reduce fatigue concerns in pulsating applications and lets engineers reduce tubing thickness in high-pressure applications without sacrificing strength, life, or safety. The autofrettage method is based on the reciprocal relationship of the plasticized inner zone and the elastically deformed outer zone. The components are placed under so much pressure that their interiors become plastically deformed. After relaxing, pressure stresses are created in these areas, which prevent the outer areas from reforming to their original shape. Instead, it remains stretched. This prevents crack formation in the later application, increases the service life of
- Testing equipment
- Autofrettage
- high pressure pipes
- High Pressure
Similar products from POPPE + POTTHOFF MASCHINENBAU GMBH
POPPE + POTTHOFF MASCHINENBAU GMBH
Germany
The Poppe + Potthoff impulse test stands test the operating or fatigue strength of various metal and plastic components. The endurance test in our high-pressure test systems simulates the life-cycle under varying loads. The failure tests thus show the potential weaknesses of the components with respect to design and material. The pressure is optionally modulated as a sine wave, trapezoid curve or needle pulse. Our test stands are characterized by a special ergonomics and are designed by Poppe + Potthoff machine design. Due to our flexible modular design, our machines are very variable, so that the pressure and volume range is designed according to the customer’s requirements. Of course, our systems are UL or CE compliant as required. In addition, we offer you service and support directly on-site.
POPPE + POTTHOFF MASCHINENBAU GMBH
Germany
In order to prove the quality of the fluid-carrying parts, all hoses, pipes, pressure vessels and other components are put under pressure until they burst. The process is precisely measured and documented in order to optimally design the components for specific applications.
POPPE + POTTHOFF MASCHINENBAU GMBH
Germany
The system is a self-sufficient unit and is made of a solid welded frame, contains media preparation, a hydraulic unit, and electrical engineering. The pressure test bench has a secure test chamber for burst pressure and hydrostatic pressure tests and, optionally, a climatic chamber for pressure tests with environmental simulation. Depending on the option selected, pressure change tests up to 2,000 bar and 10 Hz can be generated. With the test circuit for hydrostatic and burst pressure tests, pressure ramps up to 3,000 bar can be generated. It is operated on a support arm PC. For pressure tests according to EG79 / EU406 – Section 4.2 Pressure booster for additional supply Displacement volume max. 15cm³ Frequency up to 10Hz Pressure Load Changes as sine & trapezoidal curve (depending on the expansion volume) Impulse intensifier for small volumes up to 2,000bar Safety test chamber with automatic door Media treatment with dirt and clean tank