Universal testing machine is used in the plastics industry

Currently,Universal testing machineCommon items tested are tensile strength and tensile modulus, flexural strength and modulus. When performing tensile tests according to ASTM D 638 and ISO 527, there are clamps on both ends of the spline. One clamp is stationary and the other is fixed on the cross head, moving away from the fixed clamp, pulling the spline until the spline breaks, and the cross head will automatically stop when it breaks. During bending test (ASTM D790, D6272 and ISO178), the spline is placed on the two supporters of the test machine fixed machine tool. In this test, the direction of the crosshead movement is opposite to the direction of movement in the tensile test, pushing towards a center without support instead of traction until the spline bends or even breaks. Because most thermoplastic materials do not break during this test, it is impossible to calculate the fracture bending strength. Therefore, the standard test method requires the calculation of bending stress when the strain is 5%.

Nowadays, more and more plastic processing companies are purchasing so-called "universal" testing machines and using them to conduct tensile, bending, compression and shear tests to evaluate the performance of materials, develop and research the application and quality control. Developed electronics improves the performance of these devices, making them easier to operate and less expensive.

Universal testing machine(UTM) The splines of plastic material are stretched, bent, compressed or pulled through adjustments at different speed levels. This is a common equipment in plastic mixing laboratories. During the preparation of compound mixing, UTM testing materials can be used to determine whether the material is suitable for certain specific processing applications or terminal applications. UTM can also be used for product quality control to ensure consistency between batches of product quality.

Today, UTMs are increasingly appearing in plastic molding and extrusion laboratories. On the one hand, it is because they are increasingly involved in the development process of new products and new processes. On the other hand, it is because of their accuracy in raw materials and finished product quality control. In some areas with strong social responsibility, such as the medical device or the automotive industry, plastic processing equipment is needed to test their products, and UTM also needs to play a greater role. At the same time, internal testing can improve the quality of process control and reduce the waste rate, thus achieving real benefits.