The microcomputer controlled relaxation testing machine is developed based on relevant national standards for steel strand relaxation testing during the design process, and is specifically
designed for relaxation testing of materials such as steel strands, galvanized steel wires, and threaded steel bars. It is specifically designed for manufacturers and users of steel strands. This
series of testing machines is mainly used for relaxation testing of steel strands, and can detect the uniaxial tensile relaxation strength and other characteristics of steel strands and other metal
wires. It can be widely used in quality inspection departments, construction units, steel wire and steel bar production enterprises, and is a new type of testing equipment for modern building
mechanics testing. Meets GB-T 5224 "Steel Strands for Prestressed Concrete" and GB/T10120 "Test Method for Stress Relaxation of Metals". The design of the main unit and auxiliary equipment
of the testing machine draws on advanced technology from Shimadzu, Japan. It has a beautiful appearance, easy operation, and stable and reliable performance. The computer system controls
the servo motor to rotate through a controller and a speed control system. After being decelerated by a reduction system, it drives the moving crossbeam forward and backward through a
precision screw pair to complete the relaxation mechanical performance test of the sample. It is pollution-free, low-noise, and highly efficient, with a very wide speed range and crossbeam
movement distance, and has a very broad application prospect. This machine is widely used for metal material inspection and analysis in industries such as building materials, aerospace, and
machinery manufacturing, and is an ideal testing equipment for quality inspection departments.
The horizontal tension structure, with four main light bars arranged in a rectangular shape, is an upgraded and improved product of the vertical relaxation testing machine, making its operation
more intuitive, convenient, and safe. The extended stretching space and sample length of over 1000mm have improved the accuracy of the test results. The main frame with twice the MAX test
force avoids test errors caused by structural frame relaxation and increases the accuracy of the test. Adopting a self-locking worm gear structure and a gapless ball screw, the structure is compact
and efficient. The conditions of constant temperature and no vibration required for relaxation testing are easily met. The machine adopts a fully digital servo speed control system with high speed
regulation accuracy and stable performance, and a servo motor as the driving system. The controller is the core of the control system, and the control and data processing software with WINDOWS
as the operating interface realizes the screen display of test force, peak test force, beam displacement, test deformation, and test curve. All test operations can be automatically completed on the
computer through a mouse. Good humanized design makes the experimental operation more convenient.
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