Lokacin gwada taurin carbon karfe zagaye sanduna tare da ƙananan tauri, ya kamata mu zaɓi mai gwada taurin da hankali don tabbatar da cewa sakamakon gwajin daidai ne da inganci. Za mu iya yin la'akari da yin amfani da ma'aunin HRB na ma'aunin taurin Rockwell.
Ma'auni na HRB na Rockwell hardness tester yana amfani da mai sanya ƙwallon ƙarfe na ƙarfe tare da diamita na 1.588mm da madaidaicin ƙarfin gwaji na 100KG. An saita kewayon ma'auni na sikelin HRB a 20-100HRB, wanda ya dace da gwajin taurin yawancin kayan ma'aunin ƙarfe na carbon karfe tare da ƙananan tauri.
1.Idan an kashe sandunan karfen carbon karfe kuma yana da taurin kusan HRC40 – HRC65, ya kamata ka zabi na'urar gwajin taurin Rockwell. Gwajin taurin Rockwell yana da sauƙi kuma yana da sauri don aiki, kuma yana iya karanta ƙimar taurin kai tsaye, wanda ya dace da auna kayan tauri.
2.For wasu carbon karfe zagaye sanduna da aka bi da tare da carburizing, nitriding, da dai sauransu, da surface taurin ne high da core taurin ne low. Lokacin da ya zama dole don auna taurin saman daidai, za'a iya zaɓar mai gwajin taurin Vickers ko na'urar gwajin microhardness. Fitar da gwajin taurin Vickers murabba'i ne, kuma ana ƙididdige ƙimar taurin ta auna tsayin diagonal. Daidaiton ma'auni yana da girma kuma yana iya yin daidai daidai da canje-canjen taurin akan saman kayan.
3.In Bugu da kari ga HRB sikelin na Rockwell hardness tester, da Brinell taurin magwajin kuma za a iya amfani da su gwada low-taurin carbon karfe zagaye mashaya kayan. Lokacin gwada sandunan ƙarfen ƙarfe na carbon, mai shigar da shi zai bar babban yanki na indentation a saman kayan, wanda zai iya yin nuni da matsakaicin taurin kayan. Yayin aikin gwajin taurin, Brinell hardness tester ba shi da sauri da sauƙi kamar na Rockwell hardness tester. Gwajin taurin Brinell shine ma'aunin HBW, kuma indenters daban-daban sun dace da ƙarfin gwajin. Don sandunan ƙarfe na carbon karfe tare da ƙarancin tauri gabaɗaya, kamar waɗanda ke cikin yanayin da aka cire, taurin yawanci yana kusa da HB100 – HB200, kuma ana iya zaɓin gwajin taurin Brinell.
4.For carbon karfe zagaye sanduna da manyan diamita da na yau da kullum siffar, daban-daban taurin testers ne kullum zartar. Koyaya, idan diamita na sandar zagaye ƙanƙanta ne, kamar ƙasa da 10mm, mai gwajin taurin Brinell na iya shafar daidaiton auna saboda babban shigar. A wannan lokacin, ana iya zaɓar gwajin taurin taurin Rockwell ko Vickers hardness tester. Girman mai shigar da su ya fi karami kuma yana iya auna daidai taurin ƙananan samfuran.
5.Don sanduna zagaye na carbon karfe wanda ba a saba da shi ba wanda ke da wahalar sanyawa akan benci na na'urar gwaji ta al'ada don aunawa, ana iya zaɓar ma'aunin tauri mai ɗaukuwa, kamar na'urar taurin Leeb,. Yana amfani da na'urar tasiri don aika wani tasiri jiki zuwa saman abin da ake aunawa, kuma yana ƙididdige ƙimar taurin dangane da saurin da tasirin tasirin ya sake dawowa. Yana da sauƙi a yi aiki kuma yana iya yin ma'auni akan rukunin yanar gizo akan kayan aiki na siffofi da girma dabam dabam.
Lokacin aikawa: Afrilu-14-2025
