Ensayo Poldi
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El ensayo Poldi es un método para medir la dureza de un material sometiéndolo al impacto de una bola de acero. Se basa en las mismas ecuaciones que el ensayo de dureza Brinell y mide la dureza en función del área de la huella dejada por la bola sobre la probeta. El ensayo Poldi es rápido, portátil y no requiere de gráficas, aunque es menos preciso que otros métodos de medida de dureza.
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Ensayo Poldi
- 1. ENSAYO POLDI QUE ES? EN QUE CONSISTE? LARA FERNANDEZ ROMERO 2ºBACH A
- 2. QUE ES EL ENSAYO POLDI? Método de impacto que consiste en lanzar una bola de acero sobre una probeta,de manera que el impuso produzca una huella permanente VARIANTE DEL ENSAYO BRINELL DE DUREZA Mide la dureza del material sometido
- 3. H: dureza del material Sp: superficie de la huella patrón S: superficie de la huella en el material Hp: dureza de la probeta patrón COMO SE MIDE? PROBETA MISMAS ECUACIONES QUE BRINELL
- 5. CURIOSIDADES Es un ensayo de dureza estático Se puede realizar en aparatos portátiles, aunque así resulte menos preciso Es instantáneo y no tiene gráfica
- 6. ENSAYO POLDI QUE ES? EN QUE CONSISTE? LARA FERNANDEZ ROMERO 2ºBACH A
- 7. ENSAYO POLDI QUE ES? EN QUE CONSISTE? LARA FERNANDEZ ROMERO 2ºBACH A