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How to improve data accuracy of universal plastics testing machine

2018/6/8 17:51:37 Viewers:


The universal plastic material testing machine combines the advanced electronic technology, the standardization and the unit control, which has the characteristics of smooth loading, accurate measurement and high acquisition frequency. The accuracy of data of universal plastic material testing machine is not only related to the test accuracy of the instrument itself, but also to the operation quality of the tester operator. In order to improve the accuracy of the test data of the electronic universal testing machine, the operator needs to pay attention to the following points in the condition of the stability of the instrument's own test precision.


1. Is the design of the universal plastic testing machine reasonable?


The fixture of the electronic universal testing machine is also a very important part. The fixture design is not reasonable. If the clamping tests are all broken near the clamping part, the test data will be abandoned. The main fixture used in universal plastic material testing machine is: pressure reduction accessories, top breaking fixture, rotary stretching clamp, pulling and shearing fixture, etc.


Two. Whether the universal plastic material testing machine was cleared before testing?


All electronic universal testing machines have memory functions. If new tests are started without zero, the data of the last test will be mixed with the data of this test, so that the data calculated by the test machine system is not accurate enough.


Three. Is the clamping of the universal plastic testing machine correct?


The clamping of the sample is an important part of the testing process, for example, when the test is carried out, if the specimen is clamped correctly, the specimen will only bear the force of the upper and lower two directions during the stretching process, and the test results are accurate at this time. If the specimen is skew, the specimen will bear the tensile force in many directions, and the result will not be accurate.


Four. Does the universal plastic material testing machine meet the standard?


In general, each material has the corresponding test standard to test the speed of stretching, bending and so on, too fast or too slow. The measured data are different. In order to improve the accuracy of the test data, it is necessary to set the speed of the test machine in strict accordance with the test standard.