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This news article was originally written in Spanish. It has been automatically translated for your convenience. Reasonable efforts have been made to provide an accurate translation, however, no automated translation is perfect nor is it intended to replace a human translator. The original article in Spanish can be viewed at Control y medición en el proceso de producción de artículos de plástico
Ultrasonic systems provide high accuracy of measurement of thickness

Control and measurement in the process of production of plastic articles

Drafting PU28/04/2008
Detect faults in production allows to improve the quality of the transformation processes, optimize the use of raw materials and reduce the number of defective finished items. To make this control, it is necessary to know the properties that it requires a product design and standardized methods by which must carry out the required tests. PCE Group Iberian shown in this article some of its proposals.
There are some technologies to measure the properties of certain products, as well as to monitor and control processes. Plastics are particularly sensitive to changes in temperature and relative humidity. For this reason, a test under controlled laboratory conditions may differ substantially from tests that are carried out, for example, in the production plant.

In large part, the reaction of a plastic product to various conditions and combinations of loading, temperature and cycle of use depends on the behavior of the material with which it was manufactured. The properties of effort, cedencia tension, viscosity at certain temperature or resistance are crucial in the final quality of the plastic. This fact makes it necessary to have a few teams to ensure accurate measurements of each variable. For example the meter of thickness of material PCE-TG100, supplied by PCE Group Iberian, determines in seconds the thickness of various materials, including plastics. This simple handling apparatus operates with ultrasound, which gives a high-accuracy measurement. It comes preset factory with five different sound speeds for different materials.

The thickness of metals, glass and plastics and other homogeneous materials can be measured with him.

Thickness measurements of material on a plastic plate

The speed of sound can be adjusted freely in the meter of thickness of material, so it can adapt to the most diverse materials. Ultrasonic probe has a head of measurement which is in a black ring. This ring has circular section cuts to make the measurement on straight, flat or circular surfaces can be made. If you want to determine the thickness of the material in narrow places, remove promptly the screw of the black adapter harness to use directly himself head of the sensor, which has a diameter of 11 mm.

To measure the resistance of the plastic you can use any of the force of the PCE-FM series, to determine efforts of traction and compression in different ranges (from 5 Kg to 100 Kg).

Force PCE-FM

These force are controlled by microprocessor with fast and accurate reading of traction and compression. They can be used along with an optional software and the data cable to transmit the values of measurement of force to a PC or laptop. The smallest interval of transmission of data to the software is s 2. There is also a test post that is ideal for the measurement of traction and compression in the quality control and laboratory experiments.

In this way it tries to facilitate the process of quality control of plastic, with the latest technology so that the end result is a product of highest caliber.

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