Search results
926
[Page extract]
Compressive shear
Compressive shear testing is simply the pushing apart of a material specimen by applying compressive force from opposite sides in a parallel plane. In this way, the material is stressed in a sliding motion.
927
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Friction
'Dry' friction (as opposed to 'fluid' or 'lubricated' friction) is the force resisting lateral motion between two solid surfaces in contact.
It divides into:
928
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Flexure
Flexural or bend testing is used It is a way of determining how something will react when it is put under opposing forces across a span.to evaluate both the ductility and soundness of a material.
929
[Page extract]
double lap shear
Lap shear testing is used where an adhesive bond joins flat surfaces.
The required surfaces may be profiled, single, double or multiple, but standard test methods focus on a single joint.
930
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Insertion and withdrawal
Insertion and withdrawal testing involves applying and measuring the compressive force to an object to push it into a recepticle, then measuring the tension force to pull it out. This may be done for a single cycle or over multiple cycles.
931
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single lap shear
Lap shear testing is used where an adhesive bond joins flat surfaces. The required surfaces may be profiled, single, double or multiple, but standard test methods focus on a single joint.
932
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Closure torque
Closures and caps must be applied tight enough to maintain a seal and to resist working loose, but they must not be applied so tightly that the end user cannot reasonably remove them.
933
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Paper & Board
Paper and board are used in a wide range of applications and, as such, they undergo various stages of processing which place significant demands on their material strength.
934
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BS EN 28510-1
Test for measuring resistance to peeling at a nominal 90°, particularly suitable for adherends that are insufficiently flexible for a 180° peel test.
935
Case study
Syringe plunger breakaway and glide force
Customised engineering example
The majority of syringes are single-use, disposable and manually-operated.
936
Case study
Quebra do êmbolo da seringa e força de deslizamento
Exemplo de engenharia customizada A maioria das seringas é descartável, descartável e manual.
937
[Page extract]
Springs
Springs are elastic objects used to store mechanical energy and they change shape in response to external forces, returning to their original shapes when the forces are removed.
939
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BS EN 863
Protective clothing, Clothing, Perforating tests, Penetration tests, Mechanical testing, Tensile testing, Test equipment, Specimen preparation, Performance testing
940
Case study
Bulk liquid carrier closures
Customised engineering example
Our client manufactures liquid bulk carriers fitted with two-part plastic valve closures. The collar is welded to a plastic bag, and the valve closure is fixed onto it by a compression joint.
941
Case study
Remoção do acessório de trava Luer da seringa
Exemplo de engenharia customizada Nosso cliente é uma empresa biomédica que fabrica soluções médicas HA fornecidas em seringas de vidro com fechaduras luer de policarbonato de compressão.
942
Case study
Torque de remoção da tampa do cateter
Exemplo de engenharia customizada Nosso cliente estava testando o torque de liberação de tampas de cateter de plástico de 20 mm de comprimento com características irregulares para ajudar na preensão dos dedos.
944
Case study
Medical sharps bin puncture resistance
Customised engineering example
International standards (ASTM F2132, BS 7320, BS 23907) specify the puncture resistance of medical sharps containers.
945
[Page extract]
BS EN 5057
Specifies requirements for dimensions, performance characteristics and test programme. section 16 is insertion & withdrawal force test
947
[Page extract]
ASTM E9-09
These test methods cover the apparatus, specimens, and procedure for axial-load compression testing of metallic materials at room temperature.
948
[Page extract]
BS EN ISO 11857
Textile floor coverings, Floor coverings, Sheet flooring, Mechanical testing, Textile testing, Textiles, Tensile testing, Test equipment, Test specimens, Testing conditions.
949
Case study
Torque operacional do instrumento cirúrgico laparoscópico
Exemplo de engenharia customizada Os instrumentos cirúrgicos endoscópicos e laparoscópicos são operados por ajustes axiais e rotativos no cabo, para realizar movimentos precisos na cabeça.
950
Case study
Porta-garrafas de papelão para bebidas desdobrando
Exemplo de engenharia customizada Um fabricante de caixas totalmente fechadas queria testar a qualidade da força de desdobramento para uma variedade de seus designs, usados principalmente para embalar garrafas e latas de bebidas.