MYFT-20Slow stress (corrosion)stretch/Compressiontesting machine

1 setprepareJanebetween Slow strain rate（SSRT）Stress corrosion（SCC）The testing machine is used to corrode materials in corrosive environmentsslowtensile testCompared with the slow tensile test under non corrosive conditions at room temperature, adding a reaction frame can achieve slow compression, OptionalThe experimental kettle provides testing conditions in a medium environment, achieving a testing environment from room temperature to high temperature, and from atmospheric pressure to high pressure.

Optionalplace DCPD The crack propagation measurement system and replacement with a loading unit for fatigue testing can achieve corrosion fatigue in corrosive environments Measurement of fatigue loading and continuous crack propagation length and crack propagation rate.Standard configuration includes a slow loading system，passConduct a 100 hour experiment and calculate the material change characteristics for 1000 hours or longer.

2 beunifygroupbecome

This testverifybeunifyfrompullstretchplusloadbeunify、roteclipseringrealmRongdevice（realverifycauldron）、tryverifyfixture、 The components include the measurement and control system, experimental software, computer, control cabinet, and other parts.

Scalable configuration DCPDCrack measurement system, etc.

2.1 Stretch loading system loadbeunifyfrommachinemechanicalbiographymovesingleyuan、electricityqicontrolmanufacturedrivemovesingleyuanAnd testingControl softwaredocumentsingleyuangroupbecome.machineWeapon transmissionmoveunitselectuseessencesecretGet out.pearlsilkbar、Taiwan, ChinalinestarwheelreducequickmachineanddaythisPanasonic Motorsingleyuanmake, do, create, compose, write, etc.forbasethisofdrive Dynamic additionloadUnit, loadingflatStable, long-termstableQualitatively good. measurecontrolUnit selectionnegativeLoad sensor（beautycountry）、lightfence Displacement sensors and STC800 The control system is composed of components that have been proven to have high measurement and control accuracy through long-term use Stable performance.

Load the host as a floor standing systemthreeThe column frame structure adopts a heavy-duty load frame, which has high rigidity, Satisfy the accuracy and flexibility of slow rate stretching.

The loading drive unit is a high-performance fully digital servo system that meets the constant stretching rate during slow rate stretching, It can also have high response speed and accuracy during dynamic fatigue loading.

transmissionbeunifyselectusenoneintervalgaphigheffectratereducequickmachineandpre-tightessencesecretGet out.pearlsilkbar，realnownoneintervalgap、No delaylate Transmission loading.

2.2 Environmental container (experimental kettle) system (Optional)

The design of the experimental kettle and its temperature and pressure control system follows the principle of simplicity and reliability, achieving reliable control of temperature and pressure.

1) Experimental kettle volume: not less than 2L；

2) Design work pressure:atmospheric pressure；

3) designworkmake, do, create, compose, write, etc.Wendegree：100℃（High temperature glassmaterialqualityrealverifycauldron）；

4) Temperature control method for experimental kettle: electric heating5) Material of support plate and reverse bracket:316 .

2.3 Test fixture

1) Fixture material :304

2) configuration 7/16'（M10）Circular specimen fixture.

3) Configure a plate-shaped specimen fixture.

4) Plate corrosion bending fixture. (Optional)

.

2.6 Basic functions of experimental software

1) Support metric units;

2) Support functional navigation, select the corresponding experimental function based on the navigation interface;

3) Real time display of force, displacement, and deformation values

4) Real time drawing power-Displacement curve, force-Strain curve, force-Time curve, strain-Time curve, stress-Strain curve, etc;

5) Support sample control process design, facilitating the expansion of testing methods;

6) Support slow strain loading control;

9) Support multi program segment combination control to achieve complete testing in one experiment CT Various toughness and strength indicators of the sample under environmental systems;

10) Support the adjustment and immediate application of control parameters during the test;

11) Support automatic and manual experiment log recording;

12) Support the restoration of functionality after the experiment is suspended;

13) Support test recovery function after power failure;

14) Support data collection, power-off retention;

15) support 30 Long term continuous experiments exceeding days;

16) The experimental data can be exported as EXCELTheACCESS Format;

17) Support equipment overload protection and various equipment safety and test safety protections.

3 setpreparespecialpoint

1) High rigidity heavy-duty frame;

2) The device has a simple structure and is convenient for experimental expansion. It can be used for tension, compression, bending, and shearing

3) Using sensors to measure force, a high speed ratio reduction system as the force application mechanism, electrically adjustable space, easy operation and usability due to the lever type host

4) High performance fully digital servo loading control system with high speed control accuracy;

5) Dual deformation sensors can be used, with high accuracy in measuring sample deformation;

6) Pressure balancing device;

7) integrated STC800Measurement and control system, easy to expand and use;

4 tryverifymeritcan

1) Equipped with the tensile testing function of a regular electronic universal testing machine.

2) Creep under constant load/Stress corrosion test.

3) Slow strain rate tensile test, slowest tensile speed:1x10-6mm/s.(Experimental speed to be determined)

5 tryverifymarkaccurate

1)ASTM G129 - 00(2006) Standard Practice for Slow Strain Rate Testing to Evaluate the Susceptibility ofMetallic Materials to Environmentally Assisted Cracking

2)ASTM E647 Standard Test Method for MeasurementofFatigueCrack Growth Rates

3)ASTM E399 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K1c of Metallic Materials

4)ASTM G111 Guide for Corrosion Tests in High Temperature or High Pressure Environment, or Both

5)ASTM G47-98 Standard Test Method for Determining Susceptibility to Stress-Corrosion Cracking of2XXX and 7XXX Aluminum Alloy Products

6)ISO 7539-7-2005 Corrosion of metals and alloys – Stress corrosion testing Part7: Method for slow strain rate testing

7) HB 7235-1995 Slow strain rate stress corrosion test method

8) HB 5260-1983 Tensile stress corrosion test method for martensitic stainless steel

9) GB/T15970.7-2000 Corrosion of Metals and Alloys Stress Corrosion Test 第 7 Part: Slow Strain Rate Test

6 Main technical parameters

1) Maximum test force:20kN

2) Test force range:1%～100%F.S.

3) Relative error of test force indication:±0.5%

4) Maximum movement range of loading head:200mm

5) Loading head movement speed:20mm/s～1x10-7mm/s

6) Loading head displacement measurement accuracy:±0.5%

7) Loading head displacement resolution:0.05µm

8) Deformation measurement range:0～20mm

9) Deformation measurement resolution:1µm

10) Deformation measurement accuracy:±0.5%

11) Operating temperature of experimental kettle: room temperature~100℃(Optional)

7 Components of the experimental system

1) Load host

2) Experimental kettle system

3) Temperature control system

4) Slow tensile test fixture

5) Grating displacement sensor

6) Control computer

7) Slow tensile testing software

8 Equipment security protection

1) Overload protection, exceeding the maximum load 3%At the moment, it will automatically shut down;

2) Software limit protection, set the position range of the loading head movement;

3) Loading head high and low limit travel switch limit protection, automatic shutdown;

4) Emergency stop switch protection.

9 Environmental requirements for use

1) Installed on a stable foundation, with four corners of the base M12 Expansion screw fixation;

2) Leave no less than around 1m The space;

3) Indoor cleanliness, dryness, absence of vibration and corrosive gases;

4) power supply AC220V/AC380V/50HzThe voltage fluctuation does not exceed the rated value±10%；

5) There is no interference or clutter in the power grid, and there are no electrical equipment with frequent high current start stop around;

6) Working temperature 10℃～30℃, indoor variable frequency air conditioning with constant temperature control, with temperature fluctuations not exceeding the set constant temperature 2℃。

10 sellafterclothestask

1) Our company offers free debugging and training for our products, enabling operators to achieve proficiency in their use.

2) Product implementationThree guarantees of quality for one year, lifelong service.

3) Within one year, if the malfunction is caused by non-human factors, except for vulnerable parts, it can be repaired and damaged parts can be replaced free of charge.

4) Our company can report equipment operation faults for repair 24 Provide solutions within hours. If it cannot be resolved, our company will dispatch professional maintenance personnel Engineers provide on-site services.

11 Product composition and price