Flexible and rigid polymer foams are used as materials in a wide variety of industries and must fulfil high quality and safety requirements. In order to fulfil these requirements, intensive and standard-compliant foam testing is essential. The foams are tested for their compression hardness or indentation hardness, for example, or their tensile strength in tensile tests.
Flexible polymer foams are mainly used in seating furniture, mattresses and cushions due to their cushioning and comfort properties. However, they are also used as insulating material for acoustic and thermal insulation and are used as protective materials in packaging and filters.
Rigid foams are also used in house construction as thermal insulation material or for impact sound insulation. In addition, their lightness and stability make them a sought-after material for furnishing offices and salesrooms.
Hegewald & Peschke supplies a wide range of testing systems for standardised flexible and rigid foam testing as well as for testing foam components and furniture.
Compression test on flexible foams
Universal testing machine inspekt table with compression plate and load cell displacement unit
Possible test procedures:
- Determination of compression properties and compression hardness acc. to DIN EN ISO 3386
- Determination of indentation hardness acc. to DIN EN ISO 2439, DIN 53577, DIN 53579
Test system:
- Universal testing machine inspekt table with widened test area for different specimen sizes
- Accessories for compression testing:
- Load cell displacement unit for eccentric com-pression testing at different points on the specimen
- Large movable compression plate for support-ing the specimen
- Round compression pad for load application
- Option: lead-through in the lower crosshead for testing large test specimens underneath the machine
Possible test procedures:
- Determination of compressive strength, deformation, compressive load and compressive modulus acc. to DIN EN ISO 844
Test system:
- Universal testing machine inspekt table
- Compression plates
- Optional: Connection of displacement transducers to the compression platen for deformation measurement
Possible test procedures:
- Determination of tensile strength and elon-gation at break acc. to DIN EN ISO 1798
- Determination of tear strength acc. to DIN EN ISO 8067
Test system:
- Universal testing machine inspekt solo with pneumatic grips
Creep tests on 3D-printed plastic foams
Universal testing machine inspekt duo with compression plates
Possible test procedures:
- Creep tests to determine the creep behaviour under constant load
- Relaxation tests
- Compression tests
Test system:
- Universal testing machine inspekt duo
- Compression plates
- High rigidity of the test platform with movable fixing elements
- Testing of hardness and fatigue strength (acc. to EN 1957) possible without manipulating the mattress
- Also available as a stand-alone test stand for fatigue or hardness tests
- Automatic lifting of the test roller after the end of the test
- Hardness testing device can be freely positioned over length and width
- Modular principle for flexible and standard-compliant realisation of customer-specific requirements
- Pneumatic and electrical test axes for dynamic fatigue, ageing and functional tests
- 2 different control concepts:
- Calmar Pro - a software-based control concept that also allows multiple tests to be performed independently of each other
- Calmar One - a PLC-based control concept that is easy and convenient to operate and enables faster processing of the test task thanks to shorter cycle times
Our universal testing machines are equipped with the LabMaster testing software, which enables user-friendly setup and execution of test sequences for customised tests. It guarantees fast and reliable determination of results and offers a high degree of flexibility when integrating external measuring devices. Data import and export for customised software such as QDAS or SAP is also possible.
The CalMaster testing software is used for the Calmar pro furniture and component testing technology series. It offers standard-based test templates stored in the system, which allow the tests to be parameterised with little configuration effort. All required parameters are preset: Once the template has been loaded, testing can begin immediately. Of course, it is also possible to define individual, application-specific single-axis and multi-axis test sequences.
Contact:
Hegewald & Peschke
Meß- und Prüftechnik GmbH
Am Gründchen 1
01683 Nossen
Phone: +49 35242 445-0
Fax: +49 35242 445-111
E-Mail: info@hegewald-peschke.de
Internet: www.hegewald-peschke.com
Exchange of industry knowledge:
Safe test results:
