1 Shiri kafin gwaji
1) Mai gwada taurin ƙarfi da mai shigar da aka yi amfani da shi don gwajin taurin Vickers yakamata ya bi tanadin GB/T4340.2;
2) Yawan zafin jiki ya kamata a sarrafa shi a cikin kewayon 10 ~ 35 ℃. Don gwaje-gwaje tare da madaidaicin buƙatun, yakamata a sarrafa shi a (23± 5) ℃.
2 Misalai
1) Samfurin samfurin ya kamata ya zama lebur da santsi. Ana ba da shawarar cewa samfurin samfurin ya kamata ya dace da buƙatun: Matsakaicin ƙimar ma'auni: Vickers hardness samfurin 0.4 (Ra) / μm; kananan kaya Vickers taurin samfurin 0.2 (Ra) / μm; Micro Vickers taurin samfurin 0.1 (Ra)/μm
2) Don ƙananan nauyin Vickers da samfurori na micro Vickers, ana bada shawara don zaɓar polishing mai dacewa da polishing electrolytic don maganin saman bisa ga nau'in kayan.
3) Kauri na samfurin ko gwajin gwajin ya kamata ya zama aƙalla sau 1.5 na tsayin diagonal na indentation.
4) Lokacin amfani da ƙananan kaya da micro Vickers don gwaji, idan samfurin yana da ƙanƙanta ko ba daidai ba, samfurin ya kamata a sanya shi ko kuma a ɗaure shi tare da kayan aiki na musamman kafin gwaji.
3Hanyar gwaji
1) Zaɓin ƙarfin gwaji: Dangane da taurin, kauri, girman, da dai sauransu na samfurin, ƙarfin gwajin da aka nuna a cikin Table 4-10 ya kamata a zaba don gwajin. .
2) Lokacin aikace-aikacen ƙarfin gwaji: Lokacin daga farkon aikace-aikacen ƙarfi zuwa kammala cikakken ƙarfin gwajin ya kamata ya kasance cikin 2 ~ 10 s. Don ƙananan kaya Vickers da micro Vickers gwajin taurin, mai saurin saukowa ya kamata ya wuce 0.2 mm/s. Lokacin riƙe ƙarfin gwajin shine 10 ~ 15 s. Don kayan laushi na musamman, ana iya tsawaita lokacin riƙewa, amma kuskuren ya kamata ya kasance cikin 2.
3) Nisa daga tsakiyar ƙaddamarwa zuwa gefen samfurin: Ƙarfe, jan ƙarfe da jan ƙarfe ya kamata ya kasance aƙalla sau 2.5 na diagonal na diagonal; karafa masu haske, gubar, gwangwani da gaminsu yakamata su kasance aƙalla sau 3 tsayin diagonal na indentation. Nisa tsakanin cibiyoyi guda biyu masu haɗin gwiwa: don ƙarfe, jan ƙarfe da ƙarfe na ƙarfe, ya kamata ya zama akalla sau 3 na tsawon layin diagonal na alamar tsayawa; don ƙananan karafa, gubar, tin da kayan haɗin su, ya kamata ya zama aƙalla sau 6 tsawon tsawon layin diagonal na indentation.
4) Auna ma'anar lissafin tsayin diagonals guda biyu na indentation, kuma nemo ƙimar taurin Vickers bisa ga tebur, ko ƙididdige ƙimar taurin bisa ga dabara.
Bambanci a cikin tsayin diagonal biyu na indentation a kan jirgin sama bai kamata ya wuce 5% na matsakaicin darajar diagonals ba. Idan ya wuce, ya kamata a lura da shi a cikin rahoton gwaji.
5) Lokacin gwaji akan samfurin saman mai lanƙwasa, yakamata a gyara sakamakon bisa ga tebur.
6) Gabaɗaya, ana ba da shawarar bayar da rahoton ƙimar gwajin tauri na maki uku don kowane samfurin.
4 Vickers hardness tester classification
Akwai nau'ikan gwaji iri biyu na Vickers hardness testers. Mai zuwa shine gabatarwa ga amfanin gwajin taurin Vickers da aka saba amfani da shi:
1. Nau'in ma'aunin ido;
2. Nau'in auna software
Rabewa 1: Nau'in ma'aunin ido Features: Yi amfani da guntun ido don aunawa. Amfani: Injin yana yin (lu'u lu'u ◆), kuma ana auna tsayin diagonal na lu'u-lu'u tare da guntun ido don samun ƙimar taurin.
Rarraba 2: Nau'in auna software: Fasaloli: Yi amfani da software mai ƙarfi don aunawa; dace da sauƙi akan idanu; na iya auna taurin, tsayi, adana hotuna masu motsi, fitar da rahotanni, da sauransu. Amfani: Na'urar tana yin (diamond ◆) indentation, kuma kyamarar dijital tana tattara abin shigar a kwamfutar, kuma ana auna ƙimar taurin akan kwamfutar.
5Rarraba software: 4 asali iri, atomatik turret iko version, Semi-atomatik version, da kuma cikakken atomatik version.
1. Basic version
Zai iya auna taurin, tsayi, adana hotuna masu ɓoyewa, fitar da rahotanni, da sauransu;
2.Control atomatik turret version software na iya sarrafa taurin gwajin turret, kamar, haƙiƙa ruwan tabarau, indenter, loading, da dai sauransu.;
3.Semi-atomatik sigar tare da tebur gwajin XY na lantarki, akwatin kula da dandamali na 2D; Baya ga aikin sigar turret ta atomatik, software ɗin kuma na iya saita tazara da maki, dige-dige ta atomatik, ma'aunin atomatik, da sauransu;
4.Fully atomatik version tare da lantarki XY gwajin tebur, 3D dandamali kula da akwatin, Z-axis mayar da hankali; Baya ga aikin juzu'i na atomatik, software ɗin kuma tana da aikin mayar da hankali ga axis Z;
6Yadda za a zabi madaidaicin ma'aunin taurin Vickers
Farashin Vickers hardness tester zai bambanta dangane da tsari da aiki.
1. Idan kuna son zaɓar mafi arha, to kuna iya zaɓar:
Kayan aiki tare da ƙaramin allo na LCD da shigarwar diagonal ta hannu ta hanyar abin ido;
2. Idan kuna son zaɓar na'ura mai tsada, to zaku iya zaɓar:
Kayan aiki tare da babban allo na LCD, abin ido tare da mai rikodin dijital, da firintar da aka gina;
3. Idan kuna son ƙarin na'ura mai girma, to zaku iya zaɓar:
Kayan aiki tare da allon taɓawa, firikwensin madauki mai rufaffiyar, abin ido tare da firinta (ko kebul na filashin USB), dunƙule kayan ɗaga tsutsotsi, da mai rikodin dijital;
4. Idan kana ganin yana da gajiyar aunawa da abin ido, to zaka iya zabar:
An sanye shi da tsarin sarrafa hoto na taurin CCD, auna a kwamfuta ba tare da kallon guntun ido ba, wanda ya dace, da hankali, da sauri. Hakanan zaka iya samar da rahotanni da adana hotuna masu shiga, da sauransu.
5. Idan kuna son aiki mai sauƙi da babban aiki, to zaku iya zaɓar:
Mai gwada taurin Vickers ta atomatik da cikakken mai gwada taurin Vickers ta atomatik
Fasaloli: saita tazara da adadin maki, ta atomatik kuma ci gaba da dige, kuma auna ta atomatik.
Lokacin aikawa: Oktoba-17-2024
