Me tutuki te whiriwhiri i ngā taputapu whakamātautau ā-ringa mō ngā hu pēraki rino maka ki te paerewa: ICS 45.060.20. E kī ana tēnei paerewa kua wehea te whakamātautau āhuatanga ā-ringa kia rua ngā wāhanga:
1. Whakamātautau Kukū
Me whakahaere i runga anō i ngā whakaritenga o te ISO 6892-1:2019. Me tutuki i ngā rahinga me te kounga tukatuka o ngā tauira kume ngā whakaritenga o te ISO 185:2005.
2. Tikanga Whakamātautau Pakeke
Me whakatinana i runga anō i te ISO 6506-1:2014. Me tapahi ngā tauira pakeke mai i te haurua o raro o te pae whakamātautau kua whakarewaina motuhake; ki te kore he pae whakamātautau, me tango tētahi hū parai, me whakamāori kia 6mm – 10mm mai i tōna taha, ā, me ine te pakeke i ngā pūwāhi whakamātautau e 4, ko te uara toharite te hua o te whakamātautau.
Te Pūtake mō te Tikanga Whakamātautau Pakeke
Ko te paerewa ISO 6506-1:2014 "Ngā Rauemi Whakarewa - Whakamātautau Pakeke Brinell - Wāhanga 1: Tikanga Whakamātautau" e whakamārama ana i te mātāpono, ngā tohu me ngā whakamārama, ngā taputapu whakamātautau, ngā tauira, ngā tikanga whakamātautau, te koretake o ngā hua me te pūrongo whakamātautau mō te whakamātautau pakeke Brinell o ngā rauemi whakarewa.
2.1 Te Kōwhiringa o ngā Taputapu Whakamātautau: Te Whakamātautau Pakeke Brinell (I tūtohutia tuatahi)
Ngā Painga: He nui te wāhi kōpiko, e whakaata ana i te pakeketanga whānui o te rino maka (tērā pea he koretake te hanganga o te rino maka), ā, he pai ake te whakaatu i ngā hua.
He pai mō te rino maka pakeke waenga me te iti (HB 80 – 450), e kapi katoa ana i te awhe pakeke o ngā hu pēraki rino maka.
He tino māmā te mahi, ā, he iti noa te hiahia mō te whakaotinga mata o te tauira (he nui te Ra 1.6 – 6.3μm i te nuinga o te wā).
2.2 Te Mātāpono o te Whakamātautau Pakeke Brinell
Ka taea te whakarāpopoto i te mātāpono penei: Ka pēhia he pōro koranu mārō (he pōro maitai rānei kua tineia) he 10mm te whānui ki te mata o te tauira i raro i tētahi kaha whakamātautau (pērā i te 3000kgf). Whai muri i te ine i te whānui kōhao, ka tatauhia te uara pakeke (HBW) hei tohu i te kaha o te rauemi ki te ātete i te whakarerekētanga kirihou. Ko tōna painga matua kei roto i te kaha o te whakaatu i ngā hua, ka taea te whakaata i ngā āhuatanga pakeke o te rauemi. He tikanga matarohia e whakamahia whānuitia ana i roto i te whakamātautau mahi o ngā rauemi whakarewa.
2.3 Ngā Tohu me ngā Whakamārama mō te Uara Pakari o Brinell
Ko te whakamāramatanga matua o te uara pakeke Brinell (HBW) ko: te ōwehenga o te kaha whakamātautau (F) ki te horahanga mata kōpiko (A), me te waeine o MPa (engari i te nuinga o te wā kāore te waeine i tohua, ā, ko te uara tau anake ka whakamahia). Ko te tātai tatau penei:HBW=πD(D−D2−d2)2×0.102×F
Kei hea:
Ko F te kaha whakamātautau (waeine: N);
Ko D te diameter o te indenter (waeine: mm);
ko d te diameter toharite o te kōhao (waeine: mm);
Ko te tauwehenga "0.102" he tauwehenga tahuritanga e whakamahia ana hei huri i te waeine kaha whakamātautau mai i kgf ki N (mēnā ka tatauhia tika ki N, ka taea te whakangawari i te tātai).
Ka kitea mai i te tātai, i raro i te kaha whakamātautau kotahi me te diameter o te indentator, ka iti ake te diameter o te indentator, ka kaha ake te kaha o te rauemi ki te ātete i te whakarerekētanga kirihou, ā, ka teitei ake te uara pakeke Brinell; i tetahi atu taha, ka iti ake te uara pakeke.
E ai ki ngā āhuatanga rauemi o ngā hu pēra rino maka (rino maka hina), ko ngā tawhā o te whakamātautau pakeke Brinell e whai ake nei:
Te kaha whakamātautau (F): Ko te tikanga, 3000kgf (29.42kN) te whakamahinga, ā, ko te tohu pakeke e rite ana ko "HBW 10/3000".
Kia mōhio: Mena he angiangi te tauira, he ngohengohe rānei te rauemi, ka taea te whakarerekē i te kaha whakamātautau (pēnei i te 1500kgf, 500kgf rānei) e ai ki te ISO 6506-1:2014, engari me whakaatu tēnei i roto i te pūrongo whakamātautau.
Wā tuku: 26 o Ākuhata-2025
