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Simple version slow speed slow stress rate tensile testing machine

Model: UT1024 , ASTM G47, ASTM G129

Slow speed slow stress rate tensile testing machine is used for corrosive slow tensile testing of materials in corrosive environment and slow tensile experiments under non-corrosive state at room temperature, and the increase of reaction frame can achieve slow compression, tension test. is used for corrosive slow tensile testing of materials in corrosive environment and slow tensile experiments under non-corrosive state at room temperature, and the increase of reaction frame can achieve slow compression, and the optional experimental kettle provides test conditions in the medium environment to achieve a test environment from normal temperature to high temperature, from atmospheric pressure to high pressure. 

General introduction

Slow speed slow stress rate tensile testing machine is used for corrosive slow tensile testing of materials in corrosive environment and slow tensile experiments under non-corrosive state at room temperature, and the increase of reaction frame can achieve slow compression, tension test. is used for corrosive slow tensile testing of materials in corrosive environment and slow tensile experiments under non-corrosive state at room temperature, and the increase of reaction frame can achieve slow compression, and the optional experimental kettle provides test conditions in the medium environment to achieve a test environment from normal temperature to high temperature, from atmospheric pressure to high pressure. 

Speed can low to 1x10-7mm/s. 


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Tensile test sample and fixture. 

Key Features

  • Main features
  • Frame structure
  • Standard

1) High rigidity heavy duty frame;

2) The equipment structure is simple, convenient for experimental expansion, tension and bending shear, can be used

3) The use of sensor force measurement, large speed ratio deceleration system as an afterburner mechanism, electric adjustment space, ease of operation due to the lever type host
4) High-performance all-digital servo loading control system, high speed control accuracy;
5) Double deformation sensor can be used, and the specimen deformation measurement accuracy is high;
6) Pressure balancing device;
7) Integrated STC800 measurement and control system, easy to expand and use;

The test system is composed of tensile loading system, corrosive environment container (optional), test fixture, measurement and control system, test software, computer, control cabinet and other parts


Tensile loading system The loading system consists of a mechanical transmission unit, an electrically controlled drive unit and a measurement and control software unit. The mechanical transmission unit adopts precision ball screw, Taiwan planetary wheel reducer and Japanese Panasonic moving unit as the basic driving loading unit, which is smooth loading and long-term stability. The measurement and control unit is composed of load sensor (USA), light grid displacement sensor and STC800 control system, which has been proven by long-term use, and has high accuracy and stable performance.

 

The loading host is a floor-standing three-column frame structure, and the frame adopts a heavy-duty load frame, which has high rigidity and meets the accuracy and flexibility of slow-rate stretching.

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

The transmission system adopts backlash-free high-efficiency reducer and preloaded precision ball screw to achieve gap-free and delay-free transmission loading.


1)  ASTM G47-98 Standard Test Method for Determining Susceptibility to Stress-Corrosion Cracking of 2XXX and 7XXX Aluminum Alloy Products.
2)  ISO 7539-7-2005 Corrosion of metals and alloys – Stress corrosion testing Part7: Method for slow strain rate testing
3)  ASTM E606 Standard Test Method for Strain-Controlled Fatigue Testing, ASTM International, West Conshohocken
4)  ASTM E647 Standard Test Method for Measurement of Fatigue Crack Growth Rates
5)  ASTM E399 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K1c of Metallic Materials
6)  ASTM G111 Guide for Corrosion Tests in High Temperature or High Pressure Environment, or Both

7)  ASTM G47-98 Standard Test Method for Determining Susceptibility to Stress-Corrosion Cracking of 2XXX and 7XXX Aluminum Alloy Products

8), ASTM G129 - 00(2006) Standard Practice for Slow Strain Rate Testing to Evaluate the Susceptibility of Metallic Materials to Environmentally Assisted Cracking

Main technical specification

Maximum test force20kN
Test force range1% to 100% F.S
Relative error of test force indication±0.5%
Maximum moving range of loading head400mm
Loading head movement speed20mm/s~1x10-7mm/s
Load head displacement measurement accuracy±0.5%
Loading head displacement resolution0.05μm
Deformation measurement range0~20mm
Deformation measurement resolution1 μm
Deformation measurement accuracy±0.5%
Experimental kettle operating temperatureroom temperature ~ 65 °C (optional)
Maximum operating pressure of the experimental kettle0.1MPa   (optional)
Experimental kettle volumenot less than   3L

Main accessories (Standard delivery with machine)


ItemQuantity
Frame1 set
Load cell (USA Celtron)1 set
Servo motor (FUJI/Panasonic)1 set
Test fixture1 set
Raster displacement sensors1 pc
Software and control card system1 set
Computer1 set
Documents (Manual, packing list, certificate)


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Beijing United Test Co., Ltd.