The universal testing machine electronic tension machine can stretch, bend, compress or puncture the plastic splines at a controlled speed until they break. They are the most common instruments in the laboratory of plastic compounding manufacturers. In the process of compound development, an electronic tension machine is used to determine the suitability of the material for a certain process and end use. Electronic tension machines are also increasingly present in the laboratories of plastic injection and extrusion companies today. One reason is that they are increasingly used in cutting-edge product and process development. Another reason is that they perform stricter monitoring of the quality control of incoming materials and finished products. Many OEM manufacturers, especially those in the medical device or automotive fields, require plastic processors to perform their own tests at the end of production operations. Another reason for internal testing is to improve process control, which can reduce scrap rates and achieve real returns.
The specifications of the electronic tension machine are expressed by the combination of the maximum load that the frame can bear and the maximum load of the load-bearing unit. The load unit is mounted on a moving beam driven by a motor or hydraulic drive. The load-bearing unit connected to the fixture measures the force and can be read from a digital display or a computer. Many electronic tension machines have interchangeable sensors to match the material to be tested.
Early electronic tension machines all had pointers and chart recorders. They have now been completely replaced by CNC and computer software. The new controller can automatically test and display the corresponding data, and even the stress-strain curve can be displayed immediately during the test. Reduced the workload of the experimenter's calculation. How the specimen is kept at the bottom of the instrument is important because different types of tests require different fixtures.
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