1. Whakamahia Vickers whakamaarama pakeke o nga wahi paiherea (Weld Vickers pakeke whakamātautau) tikanga:
Mai i te mea ka huri te microstructure o te wahanga hono o te weldment (weld seam) i te wa o te whakahiatotanga i te wa o te hangahanga, tera pea he hononga ngoikore i roto i te hanganga paiherea.Te pakeke o te fehokotaki'anga e taea te whakaata tika mehemea he whaitake te tukanga fehokotaki'anga.Na te Vickers pakeke Ko te tikanga tirotiro he tikanga hei awhina i te arotake i te kounga o nga weld.Ka taea e te Vickers te whakamatautau pakeke o Laizhou Laihua Hardness Tester Factory te whakamatautau pakeke i runga i nga waahanga paiherea, i nga waahi weriweri ranei.I te wa e whakamahi ana i te whakamatautau pakeke a Vickers ki te whakamatautau i nga waahanga paiherea, me tohu nga tikanga whakamatautau e whai ake nei:
Papatahi o te tauira: I mua i te whakamatautau, ka huri matou i te weld kia whakamatauria kia maeneene tona mata, kia kore he paparanga waikura, kapiti me etahi atu koha.
I runga i te raina waenganui o te weld, tangohia he tohu i runga i te mata kopikopiko ia 100 mm mo te whakamatautau.
Ko te kowhiri i nga ope whakamatautau rereke ka puta nga hua rereke, na me whiriwhiri e tatou te kaha whakamatautau tika i mua i te whakamatautau.
2. Me pehea te whakamahi i te Vickers hardness tester (micro Vickers hardness tester) kia kitea te hohonu o te paparanga maro?
Me pehea te kite i te hohonu o te paparanga whakapakeke o nga waahanga rino me te maimoatanga mata penei i te carburizing, nitriding, decarburization, carbonitriding, me etahi atu, me nga waahanga rino kua tineia te whakauru?
Ko te hohonu o te paparanga whakamaroke whai hua e whakamahia ana ki te whakamahana i te mata o te rohe ki te whakarereke i te hanganga me te mahi i runga i te mata o te maitai ki te whakatutuki i te painga o te piki ake o te pakeke me te kaha me te uaua.E pa ana ki te inenga mai i te ahunga poutū o te mata wahanga ki te rohenga microstructure kua tohua.Ko te tawhiti paparanga whakapakeke ranei o te microhardness kua tohua.I te nuinga o te wa ka whakamahi matou i te tikanga pakeke rōnaki o te Vickers whakamaroke whakamaroke kia kitea te hohonu o te paparanga pakari o te mea mahi.Ko te kaupapa ko te kite i te hohonu o te paparanga whakapakeke whai hua i runga i te huringa o te pakeke moroiti-Vickers mai i te mata ki te waenganui o te wahanga.
Mo nga tikanga whakahaere motuhake, tirohia te ataata mahi whakamatautau pakeke Vickers a to tatou kamupene.Ko te kupu whakataki mahi ngawari e whai ake nei:
Whakaritehia te tauira ina hiahiatia, me whakakoi te mata whakamatautau ki te mata whakaata.
Tīpakohia te kaha whakamātautau o te kaiwhakamātau pakeke Vickers.Ka inehia te rōnaki mārō ki ngā wāhi e rua, neke atu rānei.Ka ine te pakeke o Vickers ki runga i te kotahi, neke atu ranei o nga raina whakarara e tika ana ki te mata.
Ko te tuhi i te pihi pakeke i runga i nga raraunga ine, ka taea te mohio ko te tawhiti poutū mai i te mata o te waahanga ki te 550HV (te nuinga) ko te hohonu o te paparanga pakari.
3. Me pehea te whakamahi i te Vickers hardness tester mo te whawhati toughness testing (tikanga pakaru Vickers hardness testing method)?
Ko te pakari o te whati ko te uara parenga e whakaatuhia ana e te rauemi ina pakaru te tauira, tetahi waahanga ranei i raro i nga ahuatanga koretake penei i te kapiti, i nga koha kapiti ranei.
Ko te pakari whati e tohu ana i te kaha o tetahi rawa ki te aukati i te whakatipu kapiti, he tohu ine ine mo te pakari o tetahi rawa.
I te wa e mahi ana i te whakamatautau pakari whati, tuatahi whakakorikoria te mata o te tauira whakamatautau ki te mata whakaata.I runga i te whakamatautau pakeke Vickers, whakamahia te indenter taimana koeko o te Vickers maro ki te hanga nuku ki runga i te mata kua orohia me te taumaha 10Kg.Ko nga kapiti kua oti te hanga i nga pito e wha o te tohu.I te nuinga o te wa ka whakamahia e matou he whakamatautau pakeke a Vickers ki te tiki raraunga pakaru pakaru.
Wā tuku: Apr-25-2024
