SCW-300A Microcomputer Controlled Steel Strand Stress Relaxation Tester
SCW-300A microcomputer controlled steel strand stress relaxation tester is a high-precision material testing equipment using servo control technology, computer data acquisition and processing, which can realize closed-loop control and automatic detection. It consists of test host, servo control system and measurement and control system. The test instrument consists of four parts, the maximum test force is 300kN, and the test machine accuracy level is better than level 1.
SCW-300A microcomputer controlled steel strand stress relaxation tester is used for tensile stress relaxation test of prestressed steel wire, steel strand, PC steel bar and metal material; isothermal stress relaxation test; stress relaxation test period ≥1000h.
The isothermal stress relaxation test is to maintain the sample at a given temperature (20 ° C ± 2 ° C), a certain length (L0 + △ L0), from the initial force F0, determine the change in force on the sample; stress relaxation test period 120h ~ 1000h can be set.
Initial test force, initial test force hold, zero time to maintain initial total strain, constant gauge length, continuous recording of test force and temperature, timed test force and temperature, monitoring of initial total strain and gauge length, relaxation rate, relaxation characteristic curve (remaining Test force - temperature, force - relaxation rate, force - displacement deformation, etc.).
Stress relaxation test time (start time, given time, recording force interval time, continuous recording, relaxation time ≥ 1000h).
Product Features
1. Horizontal four-column, high rigidity, high stability load frame;
2. Various control modes such as automatic load holding, cycle control and self-programming control;
3. High-precision load cell with wide linearity and good stability;
4. High-speed, low-vibration AC servo motor and drive system;
5. Load calibration function;
6. Multiple protection functions; overload, overcurrent, overvoltage protection.
Technical Parameters
Model no. |
SCW-300A |
Maximum relaxation test force |
300kN |
Accuracy class |
Class 1 |
Relative error of indication |
±1% |
Effective measurement range |
1%-100%F·S |
Test force resolution |
1/±300000F.S |
Slack load loading rate |
100~5000N/S arbitrarily set |
Deformation measurement range |
0.2%~100%FS |
Deformation measurement resolution |
0.001mm |
Steel strand loose deformation gauge distance |
100-1000mm |
Steel strand gauge length |
≥ 60 times of steel strand nominal diameter |
Slack screw travel |
0-120 mm |
Screw movement adjustment rate |
0.001 ~ 50mm / min |
Sample length |
2450mm |
Working time |
≥1000h |
Steel Strand Nominal Diameter (mm) |
Φ9.50 / Φ11.10 / Φ12.70 /Φ 15.24 |
Mainframe dimensions |
3200 mm × 700 mm × 1000 mm |
Power |
2.2kW |
Weight |
910kg |
Packaging: |
Carton box,or specified package |
Shipping method: |
---Express: UPS, FEDEX, DHL, TNT, EMS, etc ---Air shipping: Please choose your convenient shipping method according your detail requirement. ---Sea shipping: large quantity order |
ABOUT TIANPENG
Zhuozhou Tianpeng (generally refers to Zhuozhou Tianpeng Imp. and Exp. Trade Co., Ltd & Zhuozhou Tianpeng Instrument Manufacturing Co., Ltd.) was founded in 2006, and specialize in the design, manufacture and supply of high-quality construction materials testing machine for concrete, soil, cement, asphalt and etc. We have more than 300 customers worldwide, including many of the major companies around the world. More than 10 years of industry experience, professional technical and service teams help us better meet customer needs, making us an ideal partner.