Hei wāhanga matua, me tu atu ngā poraka rango me ngā pane rango miihini ki ngā pāmahana me ngā pēhanga teitei, me whakarite kia pono te hiri, ā, me tuku hoki he hototahi pai ki te huihuinga. Ko ā rātou tohu hangarau, tae atu ki te whakamātautau pakeke me te whakamātautau tika o ngā āhuatanga, me whakahaere katoa mā te whakamahi i ngā taputapu tino tika. Ko te whakamātautau pakeke o ngā poraka rango me ngā pane ka whakamahia nuitia hei aromatawai i ngā āhuatanga miihini o ngā rauemi, kia tutuki ai ngā whakaritenga hoahoa.
He pai ngā whakamātautau pakeke o Rockwell mō te tirotiro i te pakeketanga o ngā mata nui, papatahi pērā i ngā papa poraka rango (hei tauira, ngā mata hono pane rango, ngā raro poraka rango) me ngā mata pito kōhao porowhita. Mō te tirotiro kounga ipurangi i roto i ngā raina whakaputa, ka taea te whakarato i ngā whakaritenga whakamātautau ritenga. Ka taea te whakauru i ngā whakamātautau pakeke Rockwell aunoa katoa ki te raina whakaputa hei whakatutuki i te mahi kore tangata, me te whakaatu i te tino pai me ngā hua pumau. Ko tēnei tikanga whakamātautau te mea e whakamahia whānuitia ana i roto i te whakaputanga papatipu o ngā wāhanga motuka, ā, e tutuki ana i ngā paerewa ISO 6508 me ASTM E18.
E tika ana ngā whakamātautau pakeke Brinell mō te whakamātautau pakeke o ngā poraka rango me ngā wāhanga matotoru-pakipaki (hei tauira, ngā taha o te poraka rango), ā, he tino pai mō te aromatawai i te kounga whakarewa me te whai huatanga o te maimoatanga wera o ngā poraka rango rino maka. Me mōhio he nui ngā kōhao ka mahue i te whakamātautau Brinell, nō reira me karo i ngā wāhanga e ngāwari ana te pakaru pērā i ngā mata o roto o te pakitara rango me ngā mata i hangaia kia tino tika.
He pai ngā taputapu whakamātautau pakeke Vickers mō te whakamātautau pakeke o ngā wāhanga angiangi o ngā poraka rango konumohe, ngā mata o roto o te raina rango (kia kore ai e kino ngā mata hiri), tae atu ki te whakamātautau rōnaki pakeke o ngā paparanga me ngā paninga kua tukatukahia ki te wera (hei tauira, ngā paparanga nitride, ngā paparanga kua tinei) i runga i ngā mata poraka rango. Ka tutuki i tēnei tikanga whakamātautau ngā hiahia whakamātautau tika o ngā miihini rererangi me ngā miihini motuka teitei, ā, e tutuki ana hoki ki ngā paerewa ISO 6507 me ASTM E92.
E ai ki ngā poraka rango me ngā pane rango i hangaia mai i ngā rauemi rerekē, ka taea te whakamahi i ngā tauine pakeke e whai ake nei:
| Wāhanga | Ngā Rauemi Noa | Awhe Tohutoro Pakari (HB/HV/HRC) | Kaupapa Whakamātautau Matua |
| Poraka Porotaka Rino Maka | HT250/HT300 (Rino Maka Hina), Rino Karāpiti Pounamu | 180-240HB20-28HRC | Kia mau te ātete ki te kakahu me te ātete ki te whakarerekētanga |
| Poraka Porotaka Konumohe | A356+T6, AlSi11Cu2Mg | 85-130 HB90-140 HV 15-25 HRC | Taurite te kaha me te ngāwari o te miihini |
| Upoko Pūwero Rino Maka | HT200/HT250, Rino Māeneene | 170-220 HB18-26 HRC | Ātete ki te pānga pāmahana teitei, me te whakarite kia piri te mata hiri |
| Upoko Pūwero Konumohe | A356+T7, AlSi12Cu1Mg1Ni | 75-110 HB80-120 HV 12-20 HRC | Taurite te āhua mama, te marara wera me te kaha hanganga |
Hei whakatutuki i ngā whakaritenga whakamātautau kanorau o ngā poraka rango miihini, ka taea e Laizhou Laihua te whakarato i ngā otinga ritenga i runga i ngā hua motuhake. Kei roto i tēnei ko ngā tauira paerewa, ngā tauira ritenga o te whānuitanga katoa o ngā whakamātautau pakeke Rockwell, Brinell, me Vickers, tae atu ki te hoahoa o ngā taputapu motuhake i whakaritea mō ngā hua—ko te whāinga katoa he whakarei ake i te mahi whakamātautau me te tika o te ine.
Wā tuku: Hakihea-04-2025
