Test Background
Compressive stress refers to the force exerted in the direction of stress to produce deformation, and its value is expressed as the ratio of the applied force to the original cross-sectional area of the specimen perpendicular to the direction of force application. Compressive strain is the deformation of a specimen in the direction of applied stress divided by the initial size of the specimen in that direction. The compressive stress strain performance test of vulcanized rubber or thermoplastic rubber can determine the compressive stress strain performance of vulcanized rubber or thermoplastic rubber.
Zhongke Testing Reliability Experiment Center has the capability to test the reliability performance of various vulcanized rubbers or thermoplastic rubbers, and provides professional compressive stress strain performance testing services for vulcanized rubbers or thermoplastic rubbers.
Scope of tests
Vulcanized rubber: flat vulcanizing machine vulcanizing type, vulcanizing tank vulcanizing type, continuous vulcanizing type, special vulcanizing type, etc.
Thermoplastic rubber: polystyrene, polyurethane, polyolefin, polyester, ethylene-vinyl acetate copolymer, ethylene-acrylate copolymer, polyethylene-butyl rubber joint copolymer, etc.
Test method
The specimen (with lubricated or bonded metal plates) is compressed between compression plates at a constant speed until a predetermined strain is reached.
Method A: Standard specimen is used and the metal plate is lubricated with lubricant;
Method B: A standard specimen is used and the metal plate is bonded to the specimen;
Method C: The product or part of the product is used and the metal plate is lubricated with a lubricant.
Test standard:
GB/T 7757-2009 Determination of compressive stress and strain properties of vulcanized rubber or thermoplastic rubber
ISO 7743-2017 Determination of compressive stress strain properties of vulcanized rubber or thermoplastic rubber
BS ISO 7743-2011 Determination of compressive stress strain properties of vulcanized rubber or thermoplastic rubber
DIN ISO 7743-2016 Determination of compressive stress strain properties of vulcanized rubber or thermoplastic rubber
NF ISO 7743-2012 Determination of compressive stress strain properties of vulcanized rubber or thermoplastic rubber
