Rubber bands have the characteristics of large elongation, good resilience, low price, and easy use. Do you know how rubber band manufacturers test their quality? Let daoak take you to see it.
The most important thing in the production process of rubber bands is quality control. In the processing of rubber bands, quality testing is divided into 3 parts, namely, raw material quality control, processing technology control, and finished product quality control.
Before the raw materials are used, they must be inspected in accordance with regulations and can only be put into production if they are qualified.
The operation of various process equipment and their parameters are monitored at all times. The semi-finished products of each process must be inspected for quality, usually using a combination of instrumental and visual methods. The quick inspection of rubber includes the plasticity inspection of plasticized rubber roll by roll and the density, hardness, plasticity and other partial inspections of mixed rubber roll by roll. Calendering and extrusion will inspect its thickness and appearance quality at any time, and observe whether the cross section of the extruded hose is dense.
The performance test of rubber bands includes two aspects. The first is the material performance, which includes tensile strength, breaking strength, elongation, hardness, heat aging, wear resistance, etc. This is a routine test and the most important test. It directly determines the quality of rubber bands and can play a role in controlling the production process;
In addition, the performance of the finished rubber band is a direct and accurate reflection of the actual situation of the rubber band:
1. Rubber band anatomy experiment,
2. Direct testing of properties such as strength and elongation,
3. Finished product simulation experiment,
4. Practical experiment.
The above is an introduction to the method of testing the quality of rubber bands. I hope it can help everyone.
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