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1. Application range
Prestress Relaxation Testing Machine (testing machine for short below) is special for tensile property test and tensile stress relaxation test for strand wire or pre-stress steel material. It is used for ***ermining the tensile property parameters, such as tensile strength, stipulated non-proportional elongation intensity, max. force, total elongation, and so on; stress relaxation property parameters, such as stress relaxation speed ratio, relaxation stress, relaxation ratio, and so on. The machine is with high generality, dual-use machine. It can also be made into a special stress relaxation testing machine according to customer¡¯s request.
2. Structure and characteristics
Prestress Relaxation Testing Machine is composed by main frame, measuring control system, computer system, function accessories, and so on.
2.1 Main frame
2.1.1 The main frame adopts the horizontal structure. The left and right clamping plate and the four columns are connected to be a force framework. There are motor, reduction box and screw on the left of the frame. There is a wedge grip on one end of the screw, and the other end is connected to the load sensor.
2.1.2 It adopts the AC variable frequency DC servo motor and driver. The speed and frequency response is quick, speed regulation range is wide.
2.1.3 It adopts the overtone reduction box for decelerating. It can realize the seamless transmission by T type screw. It makes the transmission stable, response speed quick. The force and deformation control is without fluctuation.
2.1.4 There is no oil leakage and low noise (about 65db (A)) from the traditional hydraulic transmission by adopting mechanical transmission.
2. 2 Measuring control system
2.2.1 The resolution ratios of force and deformation measurement are high (24 bit), and stepless, constant resolution ratio, user can set himself according to the test requirement.
2.2.2 The access frequency band width of sensor is 4.5Hz, the measured test data and curve are |
| Company: |
Shaoxing Kare Instrument Equipment Co., Ltd
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| Contact: |
Mr. Alvin Li |
| Address: |
Guoqing Village, Cao'e Street, Shangyu District |
| Postcode: |
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| Tel: |
0086-13362599887 |
| Fax: |
0086-13362599887 |
| E-mail: |
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