specimen machine
1.The analytical solution for the localization band width is derived under the condition of great stiffness and the small loading rate for the specimen-testing machine system.
5.After restoration with prefabricated carbon fiber post-and-core system,each specimen was embedded in a self-cured acrylic resin block from 2.0 mm apical to the margins of a cast Ni-Cr alloy crown,then loaded at 150 degrees from the long axis in a universal testing machine at the crosshead speed of 1.0 mm/min until fracture.
6.The machine is desigened specially for testing the damage of those packaged products which fall down to the ground,and it can evaluate the impactresistance4 strength of electronic assembly which falls down during transporation.this machine is in an electromagnetic control which can drop down the specimen freely and imediately.All the rhombohedron, angle , face of the package container can be tested.
