Supercritical water medium slow strain rate stress corrosion testing machine

Equipment brief description:
This equipment is used in the nuclear power and thermal power industries to test the corrosion resistance of materials in supercritical water media environments.
The equipment consists of a load-bearing frame, a loading unit, a control system, an experimental kettle, a heating system, a water chemical loop system, a DCPD crack growth measurement system, and test software.
The experimental kettle and high-temperature furnace can be lifted and lowered electrically to facilitate the installation of specimens.The pressure balance device eliminates the additional attachment force exerted on the specimen by the pressure in the kettle.The experimental kettle lid has reserved mounting holes, which can be connected to ultrapure water injection and discharge, temperature measurement, DCPD measurement, reference electrode, corrosion electrode and other interfaces.
The water chemistry loop system realizes: measurement and control of dissolved oxygen, conductivity, pH value, mixed bed resin filtration, oxygen removal, oxygen control, dosing, ultrapure water circulation, high pressure establishment, return water cooling, ultrapure water filling, sterilization, and computer communication, etc.
The DCPD system realizes crack preset, fatigue crack measurement, corrosion crack measurement, constant K test, rising K test, falling K test, and crack expansion rate measurement of CT specimens in corrosive medium environment.
This equipment realizes direct strain measurement of samples in the kettle, which is a breakthrough in sample strain measurement technology under high-temperature and high-pressure corrosive medium environments.

Experimental features:

Ordinary tensile test.
Constant load creep/stress corrosion testing.
Slow strain rate tensile testing.

Low cycle fatigue/corrosion fatigue testing.

Test for measuring crack initiation and crack propagation rate of specimens.

Constant K control, rising K control, and falling K control tests.

Features:

Dynamic display: Load, displacement, deformation, time and test curves are dynamically displayed on the screen in real time.
Record and output stress-strain, force-time, force-displacement and other test data and curves.
Supports long-term continuous testing.
The test control is streamlined and the test process conditions can be compiled by oneself.
Automatic protection: Automatic protection and memory when force value reaches, time limit, breakage, etc. occur.
Automatic data processing: The test software automatically processes data according to corresponding standards.

Data is saved at any time and retained when power is turned off.

The test results can be stored and can be read and consulted at any time.

Test data and curves can be reanalyzed, and curves can be enlarged arbitrarily.
The open test report supports customized report templates, automatically generates test reports, can be printed or previewed, and can be saved as a file.
It has software limit protection, stroke limit protection, and full-scale overload protection functions.

Equipment features:

High rigidity heavy load frame.

High-performance fully digital servo loading control system with high speed control accuracy.

Integrated measurement and control system facilitates expansion and use.
Realize crack growth measurement in corrosive media environment.
Direct measurement of specimen strain under high temperature and high pressure corrosive medium environment.

Direct measurement of specimen strain under strain zero-crossing fatigue-controlled high-pressure corrosive medium environment.

Technical indicators: