![](/static_processed/69ebe12dd9ee9c0b04157cdd1a0e8e97/emco-test_app_haertepruefung_jpg.jpg?{"image":"https://api.emcotest.com/static/haerte-wissen/App/EMCO-TEST_APP_Haertepruefung_jpg.jpg","edits":{"resize":{"width":435,"height":325,"fit":"cover"}},"outputFormat":{"format":"webp"}} "EMCO-TEST App")
Consigli generali
Distanza minima tra punti di prova e rispetto al bordo del campione
Nelle rispettive norme dei diversi metodi di prova sono definite le distanze minime tra i punti di prova (impronte) e rispetto al bordo del campione. Il motivo di queste distanze minime è evitare risultati di durezza falsati per via della deformazione della struttura del materiale.
Ai metodi Rockwell (secondo ISO 6508), Brinell (secondo ISO 6506), Vickers (secondo ISO 6507) e Knoop (secondo ISO 4545) si applicano le distanze minime indicate nei grafici in basso.
![](/static_processed/6bfeef56df6c2d55554cb9f0fd4cb70d/eindruck-_und_kantenabstand_brinell_und_rockwell.jpg?{"image":"https://api.emcotest.com/static/haerte-wissen/Eindruck-_und_Kantenabstand_Brinell_und_Rockwell.jpg","edits":{"resize":{"width":167,"fit":"cover"}},"outputFormat":{"format":"webp"}})
![](/static_processed/6adb284981e0e1ebc24371f862a74416/eindruck-und_kantenabstand_vickers.jpg?{"image":"https://api.emcotest.com/static/haerte-wissen/Eindruck-und_Kantenabstand_Vickers.jpg","edits":{"resize":{"width":167,"fit":"cover"}},"outputFormat":{"format":"webp"}})
![](/static_processed/d10373a8b8d99191bf1fdec37252b3ea/eindruck-_und_kantenabstand_knoop.jpg?{"image":"https://api.emcotest.com/static/haerte-wissen/Eindruck-_und_Kantenabstand_Knoop.jpg","edits":{"resize":{"width":167,"fit":"cover"}},"outputFormat":{"format":"webp"}})
![](/static_processed/4b71bdd02be4e659d2002d5d7938627c/iso_internationale_organisation_normung.png?{"image":"https://api.emcotest.com/static/haerte-wissen/normen-kalibrierung/ISO_Internationale_Organisation_Normung.png","edits":{"resize":{"width":435,"height":325,"fit":"cover"}},"outputFormat":{"format":"webp"}} "Taratura & Norme")
![](/static_processed/8cd1b72996613254a8d94ce8526fd8e0/emco-test_haerteprueftechnologie.jpg?{"image":"https://api.emcotest.com/static/haerte-wissen/emco-test_haerteprueftechnologie.jpg","edits":{"extract":{"top":0,"left":2047,"width":1422,"height":800},"resize":{"width":435,"height":325,"fit":"cover"}},"outputFormat":{"format":"webp"}} "Tecnologia per la prova di durezza")
![](/static_processed/71451df0af45b776c6070bf6ae4b97b8/emco-test_maschinenbau.jpg?{"image":"https://api.emcotest.com/static/header/emco-test_maschinenbau.jpg","edits":{"resize":{"width":435,"height":325,"fit":"cover"}},"outputFormat":{"format":"webp"}} "Industria")
![](/static_processed/af445bd2448d3294fa4c33fad2fb6904/emco-test_zubehoer.jpg?{"image":"https://api.emcotest.com/static/haerte-wissen/emco-test_zubehoer.jpg","edits":{"extract":{"top":0,"left":1057,"width":1422,"height":800},"resize":{"width":435,"height":325,"fit":"cover"}},"outputFormat":{"format":"webp"}} "Applicazioni & Consigli")
![](/static_processed/4c645b8fc6fca5dda0a34ce87cb23232/jominy-test_stirnabschreckversuch.jpg?{"image":"https://api.emcotest.com/static/haerte-wissen/anwendungen-tipps/Jominy-Test_Stirnabschreckversuch.jpg","edits":{"resize":{"width":435,"height":325,"fit":"cover"}},"outputFormat":{"format":"webp"}} "Panoramica dei metodi di prova della durezza")
