Metal materials are a crucial foundation for industrial production, and their properties directly impact the safe operation of equipment in sectors such as natural gas, petrochemicals, aerospace, power metallurgy, wind power, thermal power, nuclear power, and railway shipping. As the service life increases, the mechanical properties of the equipment materials inevitably degrade, posing a serious threat to the safety of equipment operation. Therefore, it is of great significance to assess the mechanical properties of the materials.Traditional evaluation methods, such as tensile tests, fatigue tests, and fracture toughness tests, require the preparation of samples that can damage equipment, necessitating downtime for testing. These methods are time-consuming, inefficient, and not suitable for on-site testing, often making them unacceptable. In such cases, the micro-damage in-situ detection method for worn-out equipment, known as the indentation technique, has emerged.The method of indentation testing has continuously evolved from hardness testing and now can measure various mechanical properties such as material tensile performance, residual stress, and fracture toughness.
After years of technical breakthroughs, our team has developed the "Portable Universal Creasing Tester," which calculates mechanical properties and residual stresses by recording the displacement load information generated by a specific shape punch侵入 material. It abandons the traditional destructive testing concept, allowing for on-site non-destructive testing and effectively preventing equipment downtime for destructive inspections. The equipment has now passed the accuracy test of the Shengli Oilfield Test Center, and when compared to traditional testing methods, the error is less than10%Satisfies engineering application requirements. The first domestic and international standard for measuring residual stress (in welding) using the痕 energy difference method, compiled by our team: "Metal Materials" Residual Stress Testing "Pressurized Energy Difference Method," has been approvedCSTMStandard Project Approval Argument
PMT-1000This is the latest model of equipment available.（PMT—XXX，PMTCertainlyPortable Mechanical Properties TesterAbbreviation XXXIs the maximum load-bearing capacity of the equipment, for examplePMT-1000Maximum carrying capacity is1000kg）The system primarily includes a universal creasing tester, control system, and calculation software, enabling wired and wireless connections to computer terminals for device operation and control, information transmission, and real-time calculations.
The indent tester consists of four parts: the instrument body, a specific-shaped indentor, a rotating and reciprocating mechanism, and a magnetic fixed base. See Figure.1-3Shown, the instrument body employs servo cylinder transmission to control the downward penetration of spherical or Vickers indenters into the material being tested; the magnetic fixed base can quickly adhere to the surface of magnetic materials, ensuring stability during the indentation testing process. Additionally, magnetic control can be adjusted via a knob, facilitating body adjustment and precise measurement of the points in the tested area.
Utilizing both wireless and wired control and data transmission systems, suitable for various testing environments. The wired testing system employs a liquid crystal touch screen menu for parameter settings and pressure control, with a compact and lightweight control box, easy to operate, battery-powered, and unbothered by outdoor conditions, with real-time data storage.SDCard. Wireless Test System via mobile phoneappWith remote control via computer software, data is transmitted in real-time to the software, significantly reducing the control box's size, making it more portable and convenient for measurements in specific locations. Data is processed and calculated in real-time within the software, enabling one-click generation of mechanical property and residual stress results, achieving rapid data computation and the visualization of mechanical property parameters.
PMT-1000The versatile indentation tester can perform both mechanical property and stress measurements, primarily used for safety assessment of energy equipment and non-destructive measurement of residual stresses in field-welded structures. It is widely applied in industries such as material research, mechanical manufacturing, mining metallurgy, hydraulic engineering, railway transportation, chemical equipment, shipbuilding, aviation industry, and power construction. It serves as a crucial tool for non-destructive safety assessment and analysis in petrochemical, heavy industry enterprises, research institutions, and production construction sites.
