1. Karfe mai kaushi
Gwajin taurin karfen da aka kashe da zafin wuta galibi yana amfani da ma'aunin gwajin taurin Rockwell na HRC.Idan kayan yana da bakin ciki kuma sikelin HRC bai dace ba, ana iya amfani da sikelin HRA maimakon.Idan kayan ya fi sirara, ana iya amfani da ma'aunin taurin saman Rockwell HR15N, HR30N, ko HR45N.
2. Ƙarfe mai tauri
A cikin samar da masana'antu, wani lokacin ana buƙatar ainihin kayan aikin don samun ƙarfi mai kyau, yayin da kuma ana buƙatar saman don samun ƙarfin ƙarfi da juriya.A wannan yanayin, ana amfani da quenching high-frequency, sinadarai carburization, nitriding, carbonitriding da sauran matakai don gudanar da aikin taurara a kan workpiece.Matsakaicin kauri na saman taurare yana gaba ɗaya tsakanin ƴan milimita da ƴan milimita.Don kayan da ke da kauri mai kauri, ana iya amfani da ma'aunin HRC don gwada taurinsu.Don matsakaicin kauri saman taurare karafa, HRD ko HRA ma'auni za a iya amfani da.Don sirara taurin saman ƙasa, ya kamata a yi amfani da ma'aunin taurin saman Rockwell HR15N, HR30N, da HR45N.Don mafi ƙanƙanta saman yadudduka, ya kamata a yi amfani da mai gwada taurin taurin micro Vickers ko na'urar taurin ultrasonic.
3. Ƙarfe mai ƙura, ƙarfe na al'ada, karfe mai laushi
Ana samar da kayan ƙarfe da yawa a cikin yanayin da ba a taɓa gani ba ko kuma an daidaita su, kuma ana ƙididdige wasu faranti na sanyin ƙarfe bisa ga digiri daban-daban na annealing.Gwajin taurin nau'ikan karafa da aka toshe yawanci yana amfani da ma'aunin HRB, kuma wani lokacin ana amfani da ma'aunin HRF don faranti mai laushi da sirara.Don faranti na bakin ciki, ya kamata a yi amfani da ma'aunin taurin Rockwell HR15T, HR30T, da HR45T.
4. Bakin karfe
Bakin karfe yawanci ana kawo su a cikin jihohi kamar kashewa, kashewa, fushi, da ingantaccen bayani.Ma'auni na ƙasa suna ƙayyadad da daidaitattun ƙimar tauri na sama da ƙasa, kuma gwajin taurin yawanci yana amfani da ma'auni na Rockwell hardness tester HRC ko HRB.Za a yi amfani da sikelin HRB don austenitic da ferritic bakin karfe, ma'aunin HRC na Rockwell hardness tester za a yi amfani da shi don martensite da hazo hardening bakin karfe, da ma'aunin HRN ko sikelin HRT na Rockwell hardness tester za a yi amfani da bakin karfe bakin ciki- bututu masu bango da kayan takarda tare da kauri ƙasa da 1 ~ 2mm.
5. Karfe na jabu
Ana amfani da gwajin taurin taurin Brinell don ƙirƙira ƙarfe, saboda ƙananan ƙarfe na jabun ƙarfe ba su isa ba, kuma ƙarfin gwajin taurin Brinell yana da girma.Saboda haka, gwajin taurin Brinell na iya nuna cikakken sakamakon microstructure da kaddarorin duk sassan kayan.
6. Karfe
Abubuwan simintin ƙarfe galibi ana siffanta su da tsarin da bai dace ba da ƙananan hatsi, don haka ana ɗaukar gwajin taurin Brinell gabaɗaya.Ana iya amfani da gwajin taurin Rockwell don gwajin taurin wasu kayan aikin simintin ƙarfe.Inda babu isasshen yanki a kan ƙaramin ɓangaren simintin hatsi mai kyau don gwajin taurin Brinell, ana iya amfani da ma'aunin HRB ko HRC sau da yawa don gwada taurin, amma yana da kyau a yi amfani da ma'aunin HRE ko HRK, saboda HRE. da ma'aunin HRK suna amfani da ƙwallan ƙarfe na diamita na 3.175mm, waɗanda za su iya samun mafi kyawun matsakaicin karatu fiye da ƙwallan ƙarfe na diamita na 1.588mm.
Kayayyakin simintin ƙarfe mai wuyar ƙirƙira yawanci suna amfani da mai gwajin taurin Rockwell HRC.Idan kayan bai yi daidai ba, ana iya auna bayanai da yawa kuma ana ɗaukar matsakaicin ƙimar.
7. Carbide mai kauri (hard alloy)
Gwajin taurin kayan gami yana amfani da ma'aunin ma'aunin taurin Rockwell kawai.
8. Foda
Lokacin aikawa: Juni-02-2023
