Device for fractionation of entire miniature probes (Machine-translation by Google Translate, not legally binding)

Fractionation device of miniature fitted test pieces, of analogous appearance to a miniature test of bending in three points, characterized to be of the type of those constituted by three pieces (1), (2) and (3) of steel assemblable to each other, the frame (1) being composed by the welded joint of a hollow rectangular profile (4), a plate (5) and two solid squares (6), the holes (7) and (8) having been machined for the correct assembly of the assembly and the recess (9) to house the specimen, so that the upper part of the hold down (10) provided with the threaded end (12) fits into the hole (7) and the lower part of the hold down (11) provided with the threaded hole (13) in the hole (8), interposing the spring (3) between both parts (10) and (11) prior to its threading, leaving the movement of the gripper (2) restricted to the direction of the hole axis ( 7) and the device assembled in such a way that when proceeding to biapoy the miniature specimen with the notch down in the recess (9) the action of the spring (3) on the presser foot (2) makes its bottom part with the shape of a vee (14) coming into contact with the specimen, in which case the contact forces that appear will be sufficient to ensure the holding of the miniature specimen during the fractionation process, immersing in liquid nitrogen the lower part of the device to achieve fragilization of the specimen if required, to culminate with a strike on the top of the pisador (2) which will produce the fragile rupture of the specimen in two equal halves ready to be observed with the scanning electron microscope. (Machine-translation by Google Translate, not legally binding) 1. Dispositivo de fraccionamiento de probetas miniatura entalladas, de apariencia análoga a un ensayo miniatura de flexión en tres puntos, caracterizado por ser del tipo de los constituidos por tres piezas (1), (2) y (3) de acero ensamblables entre sí, estando el bastidor (1) compuesto mediante la unión soldada de un perfil rectangular hueco (4), una pletina (5) y dos cuadradillos macizos (6), habiendo sido mecanizados los agujeros (7) y (8) para el correcto ensamblado del conjunto y el rebaje (9) para alojar la probeta, de forma que la parte superior del pisador (10) provista del extremo roscado (12) se encaja en el agujero (7) y la parte inferior del pisador (11) provista del agujero roscado (13) en el agujero (8), interponiendo el muelle (3) entre ambas piezas (10) y (11) previamente a su roscado, quedando el movimiento del pi