I te ao o te whakarewa me te pūtaiao rauemi, ko te pakeketanga tētahi o ngā āhuatanga tino nui e whakamahia ana hei aromatawai i te kounga me te mahi a tētahi rauemi. Ka ine ngā whakamātautau pakeketanga i te ātete o tētahi rauemi ki te whakarerekētanga, te rakuraku, te kōpiko rānei. I roto i ngā tikanga whakamātautau pakeketanga maha, ko teWhakamātautau Pakeke Brinell (BHN)me teWhakamātautau Pakari o Rockwell (HR)ko ngā mea e whakamahia whānuitia ana i roto i ngā tono ahumahi.
Mā ēnei whakamātautau ka āwhina i ngā kaihanga, ngā miihini, me ngā tīma whakahaere kounga kia tutuki ai te kaha, te ātete ki te kakahu, me te roa o te mau o ngā konganuku mō tā rātou whakamahinga e tika ana. I roto i tēnei tuhinga, ka tūhuratia e mātou he aha ngā inenga pakeke o Brinell me Rockwell, me pēhea tā rātou mahi, me te wāhi e whakamahia ai.
Te Mārama ki te Mārō o ngā Rauemi
Ehara te pakeke i te āhuatanga kotahi o te rauemi, engari he huinga o te kaha, te ngāwari, me te ātete ki te kakahu. Ko te rauemi pakeke ake he nui ake te ātete ki te kakahu me te whakarerekētanga, he mea tino pai mō ngā taiao taumahatanga nui pēnei i ngā taputapu, ngā wāhanga mīhini, me ngā wāhanga hanganga.
Heoi, me taurite te pakeke me te pakari. Ka pakarukaru pea te rauemi tino mārō, engari ka tere te pakaru o te rauemi ngohengohe rawa. Koia te hiranga o ngā tikanga ine tika pērā i a Brinell me Rockwell.
Te Whakamātautau Pakeke Brinell (BHN)
Tirohanga Whānui
Ko te Whakamātautau Pakeke Brinell, i whakawhanakehia e te miihini Huitene a Johan August Brinell i te tau 1900, tētahi o ngā tikanga whakamātautau pakeke tawhito rawa atu. He whānuitia te whakamahinga mō ngā rauemi he matotoru, he koretake rānei ngā hanganga kōpaka, pērā i te whakarewa me te hanga.
Te Kaupapa Whakahaere
I roto i te whakamātautau Brinell:
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Ka pēhia he pōro maitai mārō, he pōro tungsten carbide rānei (he 10 mm te whānui i te nuinga o te wā) ki te mata o te rauemi.
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Ka utaina he kawenga taumaha (i waenga i te 500 me te 3000 kgf) mō tētahi wā kua whakaritea, arā, 10 ki te 30 hēkona te nuinga.
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Ka inehia te whānui o te kōhao e toe ana i te mata mā te whakamahi i te karuārai.
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TeBHNKa tatauhia te uara mā te wehewehe i te kaha i pā ki te horahanga mata o te kōhao.
Ngā Painga
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He pai mō ngā mata taratara
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Ka taea te whakamātautau i ngā wāhanga nunui, matotoru
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He pai te pakeke toharite mō tētahi wāhi nui ake
Ngā ngoikoretanga
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Ka waiho he kōhao nui pumau
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Kāore i te pai mō ngā rauemi tino angiangi, tino mārō rānei
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Me ine i te tirohanga, ka roa pea te wā
Ngā tono
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Rino maka
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Ngā koranu konumohe
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Parahi me te parahi
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Ngā wāhanga maitai nui
Te Whakamātautau Pakari o Rockwell (HR)
Tirohanga Whānui
Ko te Whakamātautau Mārō o Rockwell, i whakawhanakehia i te tīmatanga o te rautau 20 e Hugh rāua ko Stanley Rockwell, tētahi o ngā tikanga ine mārō tino noa i roto i te ahumahi hou. He tere ake, he māmā ake hoki i a Brinell, ā, kāore e hiahiatia he inenga whatu.
Te Kaupapa Whakahaere
I roto i te whakamātautau Rockwell:
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Ka pēhia he pōro maitai, he pōro tungsten carbide rānei, he mea wero taimana kōniko (Brale) rānei ki roto i te rauemi.
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Ka pāngia tuatahitia he kawenga iti (10 kgf te nuinga) hei whakanoho i te taputapu wero.
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Ka utaina he kawenga nui (ko te nuinga he 60, 100, 150 kgf rānei) mō tētahi wā kua whakaritea.
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Ko te hohonutanga o te werohanga i raro i te kawenga nui, ki te whakataurite ki te hohonutanga i muri i te kawenga iti, te mea e whakatau ana i te uara pakeke.
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Ka pānuitia tika te hua mai i te tauine pakeke o Rockwell, kāore he tataunga atu.
Ngā Pauna Rockwell
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Rockwell A (HRA)– Kone taimana, 60 kgf; mō ngā paninga angiangi mārō
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Rockwell B (HRB)– pōro 1/16-inihi, 100 kgf; mō ngā konganuku ngohengohe pērā i ngā koranu parahi
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Rockwell C (HRC)– Kone taimana, 150 kgf; mō ngā maitai whakapakeke
Ngā Painga
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Tere, ngāwari hoki te mahi
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Pānui matihiko tika, kāore he tataunga e hiahiatia ana
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Te whakarite mata iti rawa
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He pai mō ngā taiao whakaputa
Ngā ngoikoretanga
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Kāore pea te kōhao iti e whakaatu i ngā āhuatanga papatipu o ngā rauemi me ngā hanganga taratara
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He iti noa iho mō ngā wāhanga tino angiangi, iti rānei i ētahi wā
Ngā tono
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Rino whakapakeke
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Kowiri tira
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Konumohe
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Parahi
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maitai taputapu
Brinell me Rockwell: Ngā Rerekētanga Matua
| Āhuatanga | Whakamātautau Pakeke Brinell (BHN) | Whakamātautau Pakari o Rockwell (HR) |
|---|---|---|
| Kaiwhakauru | pōro 10 mm (te maitai, te tungsten carbide rānei) | Pōro, kōne taimana rānei |
| Utaina | 500–3000 kgf | 60–150 kgf (kawenga nui) |
| Ine | Te ine whatu o te diameter kōhao | Te ine tika i te hohonutanga |
| Tere | Pōturi ake, me whai karuārai | Pānui tere ake, tika hoki |
| Pai rawa atu mō | Ngā konganuku matotoru, ngā whakarewanga | Whakamātautau whakaputa, ngā maitai whakapakeke |
| Rahi Whakaurunga | Nui ake | Iti ake |
Te Hiranga o te Whakamātautau Pakeke i roto i te Ahumahi
Mā te whakamātautau pakeke ka tutuki ngā rauemi i ngā whakaritenga mahi mō tā rātou whakamahinga. Ka āwhina ngā whakamātautau Brinell me Rockwell i:
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Manatokohia te kounga o ngā rauemi i mua i te hanga
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Tirohia te pakeke i muri i te maimoatanga wera
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Me whakarite kia rite tonu ngā puranga hanga
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Arotakehia te ātete kakahu
Hei tauira, i roto i te umanga tuku maitai kore waikura, ko ngā kamupene pēnei isakysteele whakawhirinaki ana ki ngā inenga pakeke tika hei whakarite kia tutuki i ā rātou hua ngā paerewa o te ao mō te mahi ā-pūkaha me te roa.
Te Kōwhiri i te Tikanga Whakamātautau Tika
Ko te whiriwhiri i waenga i ngā inenga mārō o Brinell me Rockwell e whakawhirinaki ana ki ētahi āhuatanga:
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Momo Rauemi– He pai ake ngā konganuku taratara mō Brinell, engari ko ngā konganuku pai kua whakapakeketia he pai ake te whakamahi i a Rockwell.
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Rahi Wāhanga– He māmā ake te whakamātautau i ngā wāhanga nunui, matotoru ki a Brinell; he pai ake ngā wāhanga iti mō Rockwell.
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Te Tika e Hiahiatia ana– He tere ake ngā hua o Rockwell, engari he toharite ake ngā hua o Brinell mō ngā rauemi kanorau.
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Tere Whakaputa– He pai ake a Rockwell mō ngā taiao whakaputa papatipu.
Ngā Here me ngā Whakatūpato
Ahakoa he mea nui te whakamātautau pakeke, he iti noa iho ōna ngoikoretanga:
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Kāore ngā uara pakeke e tohu tika ana i te kaha kume, i te ātete pānga rānei.
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Ka pāngia ngā hua e ngā āhuatanga o te mata; me ma, me maeneene hoki ngā mata.
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He whakangaro ngā tikanga whakapiko, ā, ka waiho he tohu ki te rauemi.
He mea nui te whakangungu tika a te kaiwhakahaere me te whakatikatika auau i ngā taputapu whakamātautau kia puta ai he hua pono.
Ngā Whakaaro Whakamutunga
He mea nui te ine i te pakeke o Brinell me Rockwell i roto i ngā whakamātautau rauemi o ēnei rā. He kaha tō ia tikanga, ā, i roto i te maha o ngā ahumahi, e whakamahia ana ēnei e rua hei whakaū i ngā hua. He pai a Brinell mō ngā mata nui, kāore i te ōrite, ā, he toharite te pakeke, ko Rockwell ia e tere ana, e ngāwari ana hoki mō ngā raina whakaputa.
Mō ngā kaiwhakarato pēnei i asakysteel, mā te whakamahi i te tikanga whakamātautau pakeke tika ka whakarite kia rite te mahi a te maitai kore waikura, ngā maitai koranu, me ētahi atu hua whakarewa ki tā te mea e tumanakohia ana i roto i ngā tono uaua. Ehara i te mea ko te ine tika i te pakeke anake te whakamana i te kounga engari ka hanga hoki i te whakawhirinaki ki ngā kiritaki puta noa i ngā rāngai motuka, rererangi, hangahanga, me te hangahanga.
Wā tuku: 13 o Ākuhata 2025