In rubber processing, the test is divided into three parts, namely raw material quality control, process control and finished product quality control.
Raw material quality control:
Before the raw materials are used, they should normally be inspected according to the regulations before they can be put into production. Process monitoring: The operation of each process equipment and its parameters should be monitored from time to time. The quality of the semi-finished products of each process should be tested.
The inspection methods are instrumental and visual.
The quick inspection of the rubber compound includes plasticity and roll-to-roller detection of plasticity and mixing of rubber to measure density, hardness, plasticity or Mooney viscosity, vulcanization curve and dispersion. The thickness and appearance quality should be monitored at all times for calendering and extrusion; in addition, the section of the extrudate should be cut for extrusion to see if it is dense. The appearance of the vulcanized product should also be observed at any time.
Rubber product performance testing:
Performance consists of two parts. The first part is the rubber property, which is the performance test that will be made into the specified sample, such as the most commonly tested tensile strength, elongation, hardness, tear strength, heat aging, fatigue resistance, resistance Wear, etc. These are basically routine tests that can both control the production process and characterize the performance of the product.
The second part is the product performance, which can more accurately reflect the actual situation of the product: 1. Product anatomy test; 2. Direct product with strength and elongation; 3. Finished product simulation test; 4. Practical test